Merge "virtio-9p: enable the virtfs on Windows." into tizen

18 files changed, 5672 insertions, 152 deletions

diff --git a/Makefile.objs b/Makefile.objs
index 2f48c35d37..db35a5992e 100644
--- a/Makefile.objs
+++ b/Makefile.objs
@@ -47,11 +47,7 @@ common-obj-y += readline.o
 common-obj-y += qdev-monitor.o device-hotplug.o
 common-obj-$(CONFIG_WIN32) += os-win32.o
 common-obj-$(CONFIG_POSIX) += os-posix.o
-
-#common-obj-$(CONFIG_LINUX) += fsdev/
-ifneq ($(CONFIG_WIN32),y)
 common-obj-y += fsdev/
-endif
 
 common-obj-y += migration.o migration-tcp.o
 common-obj-$(CONFIG_RDMA) += migration-rdma.o
diff --git a/configure b/configure
index 5b9a298fc3..774ac05b34 100755
--- a/configure
+++ b/configure
@@ -3767,9 +3767,12 @@ if test "$softmmu" = yes ; then
     if test "$cap" = yes && test "$linux" = yes && test "$attr" = yes ; then
       virtfs=yes
       tools="$tools fsdev/virtfs-proxy-helper\$(EXESUF)"
-	elif test "$darwin" = yes ; then
-		echo "Enable VirtFS on Darwin"
-		virtfs=yes
+    elif test "$darwin" = yes ; then
+      echo "Enable VirtFS on Darwin"
+      virtfs=yes
+    elif test "$mingw32" = yes ; then
+      echo "Enable VirtFS on Windows"
+      virtfs=yes
     else
       if test "$virtfs" = yes; then
         error_exit "VirtFS is supported only on Linux and requires libcap-devel and libattr-devel"
diff --git a/fsdev/file-op-9p.h b/fsdev/file-op-9p.h
index 339113066d..45e6a4a620 100644
--- a/fsdev/file-op-9p.h
+++ b/fsdev/file-op-9p.h
@@ -12,12 +12,16 @@
  */
 #ifndef _FILEOP_H
 #define _FILEOP_H
+#ifdef CONFIG_MARU
+
 #include <sys/types.h>
 #include <dirent.h>
 #include <sys/time.h>
 #include <utime.h>
 #include <sys/stat.h>
+#ifndef CONFIG_WIN32
 #include <sys/uio.h>
+#endif
 #ifdef CONFIG_LINUX
 #include <sys/vfs.h>
 #endif
@@ -25,7 +29,20 @@
 #include <sys/param.h>
 #include <sys/mount.h>
 #endif
+#ifdef CONFIG_WIN32
+#include "tizen/src/resources_win32.h"
+#endif
+struct iovec;
 
+#else /* ifndef CONFIG_MARU */
+#include <sys/types.h>
+#include <dirent.h>
+#include <sys/time.h>
+#include <utime.h>
+#include <sys/stat.h>
+#include <sys/uio.h>
+#include <sys/vfs.h>
+#endif
 #define SM_LOCAL_MODE_BITS    0600
 #define SM_LOCAL_DIR_MODE_BITS    0700
 
diff --git a/fsdev/virtio-9p-marshal.c b/fsdev/virtio-9p-marshal.c
index 20f308b760..53626a46ea 100644
--- a/fsdev/virtio-9p-marshal.c
+++ b/fsdev/virtio-9p-marshal.c
@@ -10,7 +10,8 @@
  * the COPYING file in the top-level directory.
  *
  */
-
+#include "qemu-common.h"
+#ifndef CONFIG_MARU
 #include <glib.h>
 #include <glib/gprintf.h>
 #include <sys/types.h>
@@ -26,6 +27,26 @@
 #include "virtio-9p-marshal.h"
 #include "qemu/bswap.h"
 
+#else /* CONFIG_MARU */
+#include <glib.h>
+#include <glib/gprintf.h>
+#include <sys/types.h>
+#include <dirent.h>
+#include <sys/time.h>
+#include <utime.h>
+#include <string.h>
+#include <stdint.h>
+#include <errno.h>
+
+#include "qemu/compiler.h"
+#include "qemu/bswap.h"
+#include "virtio-9p-marshal.h"
+
+#ifndef CONFIG_WIN32
+#include <sys/uio.h>
+#endif
+#endif
+
 void v9fs_string_free(V9fsString *str)
 {
     g_free(str->data);
diff --git a/fsdev/virtio-9p-marshal.h b/fsdev/virtio-9p-marshal.h
index 5df65a8357..431073cb5b 100644
--- a/fsdev/virtio-9p-marshal.h
+++ b/fsdev/virtio-9p-marshal.h
@@ -1,6 +1,12 @@
 #ifndef _QEMU_VIRTIO_9P_MARSHAL_H
 #define _QEMU_VIRTIO_9P_MARSHAL_H
 
+#ifdef CONFIG_MARU
+#ifdef CONFIG_WIN32
+#include "tizen/src/resources_win32.h"
+#endif
+#endif
+
 typedef struct V9fsString
 {
     uint16_t size;
diff --git a/hw/9pfs/Makefile.objs b/hw/9pfs/Makefile.objs
index 39fe14dd6c..7e9264c92e 100644
--- a/hw/9pfs/Makefile.objs
+++ b/hw/9pfs/Makefile.objs
@@ -1,12 +1,26 @@
+ifeq ($(CONFIG_MARU),y)
+common-obj-y  = virtio-9p-maru.o
+common-obj-y += virtio-9p-local-maru.o
+common-obj-y += virtio-9p-coth-maru.o cofs.o codir.o cofile.o
+ifneq ($(CONFIG_WIN32),y)
+common-obj-y += virtio-9p-xattr-user.o virtio-9p-posix-acl.o
+common-obj-y += virtio-9p-xattr.o coxattr.o
+endif
+common-obj-$(CONFIG_LINUX) += virtio-9p-synth.o
+common-obj-$(CONFIG_LINUX) += virtio-9p-proxy.o
+common-obj-$(CONFIG_OPEN_BY_HANDLE) +=  virtio-9p-handle.o
+
+obj-y += virtio-9p-device.o
+endif
+
+ifneq ($(CONFIG_MARU),y)
 common-obj-y  = virtio-9p.o
 common-obj-y += virtio-9p-local.o virtio-9p-xattr.o
 common-obj-y += virtio-9p-xattr-user.o virtio-9p-posix-acl.o
 common-obj-y += virtio-9p-coth.o cofs.o codir.o cofile.o
-#common-obj-y += coxattr.o virtio-9p-synth.o
-common-obj-y += coxattr.o
-common-obj-$(CONFIG_LINUX) += virtio-9p-synth.o
+common-obj-y += coxattr.o virtio-9p-synth.o
 common-obj-$(CONFIG_OPEN_BY_HANDLE) +=  virtio-9p-handle.o
-#common-obj-y += virtio-9p-proxy.o
-common-obj-$(CONFIG_LINUX) += virtio-9p-proxy.o
+common-obj-y += virtio-9p-proxy.o
 
 obj-y += virtio-9p-device.o
+endif
diff --git a/hw/9pfs/cofile.c b/hw/9pfs/cofile.c
index 194c1306c6..0f0fac744c 100644
--- a/hw/9pfs/cofile.c
+++ b/hw/9pfs/cofile.c
@@ -17,6 +17,14 @@
 #include "block/coroutine.h"
 #include "virtio-9p-coth.h"
 
+#ifdef CONFIG_MARU
+#ifdef CONFIG_WIN32
+#ifdef fsync
+#undef fsync
+#endif
+#endif
+#endif
+
 int v9fs_co_st_gen(V9fsPDU *pdu, V9fsPath *path, mode_t st_mode,
                    V9fsStatDotl *v9stat)
 {
@@ -277,3 +285,11 @@ int v9fs_co_preadv(V9fsPDU *pdu, V9fsFidState *fidp,
         });
     return err;
 }
+
+#ifdef CONFIG_MARU
+#ifdef CONFIG_WIN32
+#ifndef fsync
+#define fsync _commit
+#endif
+#endif
+#endif
diff --git a/hw/9pfs/virtio-9p-coth-maru.c b/hw/9pfs/virtio-9p-coth-maru.c
new file mode 100644
index 0000000000..d86a302f0b
--- /dev/null
+++ b/hw/9pfs/virtio-9p-coth-maru.c
@@ -0,0 +1,161 @@
+/*
+ * Virtio 9p backend for Maru
+ * Based on hw/9pfs/virtio-9p-coth.c:
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Contact:
+ *  Sooyoung Ha <yoosah.ha@samsung.com>
+ *  YeongKyoon Lee <yeongkyoon.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+#include "fsdev/qemu-fsdev.h"
+#include "qemu/thread.h"
+#include "block/coroutine.h"
+#include "virtio-9p-coth.h"
+
+#ifdef CONFIG_WIN32
+#include <winsock2.h>
+#endif
+
+#include "../../tizen/src/debug_ch.h"
+MULTI_DEBUG_CHANNEL(tizen, qemu_9p_coth);
+
+/* v9fs glib thread pool */
+static V9fsThPool v9fs_pool;
+
+void co_run_in_worker_bh(void *opaque)
+{
+    Coroutine *co = opaque;
+    g_thread_pool_push(v9fs_pool.pool, co, NULL);
+}
+
+static void v9fs_qemu_process_req_done(void *arg)
+{
+    char byte;
+    ssize_t len;
+    Coroutine *co;
+
+    do {
+#ifndef CONFIG_WIN32
+        len = read(v9fs_pool.rfd, &byte, sizeof(byte));
+#else
+        struct sockaddr_in saddr;
+        int recv_size = sizeof(saddr);
+        len = recvfrom((SOCKET)v9fs_pool.rfd, &byte, sizeof(byte), 0, (struct sockaddr *)&saddr, &recv_size);
+#endif
+    } while (len == -1 &&  errno == EINTR);
+
+    while ((co = g_async_queue_try_pop(v9fs_pool.completed)) != NULL) {
+        qemu_coroutine_enter(co, NULL);
+    }
+}
+
+static void v9fs_thread_routine(gpointer data, gpointer user_data)
+{
+    ssize_t len = 0;
+    char byte = 0;
+    Coroutine *co = data;
+
+    qemu_coroutine_enter(co, NULL);
+
+    g_async_queue_push(v9fs_pool.completed, co);
+    do {
+#ifndef CONFIG_WIN32
+        len = write(v9fs_pool.wfd, &byte, sizeof(byte));
+#else
+        struct sockaddr_in saddr;
+        saddr.sin_family = AF_INET;
+        saddr.sin_addr.s_addr = inet_addr("127.0.0.1");
+        saddr.sin_port=htons(9190);
+        len = sendto((SOCKET)v9fs_pool.wfd, &byte, sizeof(byte), 0, (const struct sockaddr *)&saddr, sizeof(saddr));
+#endif
+    } while (len == -1 && errno == EINTR);
+}
+
+int v9fs_init_worker_threads(void)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int ret = 0;
+    V9fsThPool *p = &v9fs_pool;
+#ifndef CONFIG_WIN32
+    int notifier_fds[2];
+    sigset_t set, oldset;
+
+    sigfillset(&set);
+    /* Leave signal handling to the iothread.  */
+    pthread_sigmask(SIG_SETMASK, &set, &oldset);
+
+    if (qemu_pipe(notifier_fds) == -1) {
+        ret = -1;
+        goto err_out;
+    }
+#else
+    WSADATA wsadata;
+    struct sockaddr_in saddr;
+
+    WSAStartup(MAKEWORD(2,2),&wsadata);
+
+    SOCKET pSock = socket(PF_INET, SOCK_DGRAM, IPPROTO_UDP);
+
+    saddr.sin_family = AF_INET;
+    saddr.sin_addr.s_addr = htonl(INADDR_ANY);
+    saddr.sin_port=htons(9190);
+
+    if(bind(pSock, (const struct sockaddr *)&saddr, sizeof(saddr)) == -1){
+        ERR("[%d][%s] >> bind err: %d \n", __LINE__, __func__, WSAGetLastError());
+    } else {
+        TRACE("[%d][%s] >> bind ok\n", __LINE__, __func__);
+    }
+#endif
+    p->pool = g_thread_pool_new(v9fs_thread_routine, p, -1, FALSE, NULL);
+    if (!p->pool) {
+        ret = -1;
+        goto err_out;
+    }
+    p->completed = g_async_queue_new();
+    if (!p->completed) {
+        /*
+         * We are going to terminate.
+         * So don't worry about cleanup
+         */
+        ret = -1;
+        goto err_out;
+    }
+#ifndef CONFIG_WIN32
+    p->rfd = notifier_fds[0];
+    p->wfd = notifier_fds[1];
+
+    fcntl(p->rfd, F_SETFL, O_NONBLOCK);
+    fcntl(p->wfd, F_SETFL, O_NONBLOCK);
+#else
+    p->rfd = (int)pSock;
+    p->wfd = (int)pSock;
+#endif
+
+    qemu_set_fd_handler(p->rfd, v9fs_qemu_process_req_done, NULL, NULL);
+err_out:
+#ifndef CONFIG_WIN32
+    pthread_sigmask(SIG_SETMASK, &oldset, NULL);
+#endif
+    TRACE("[%d][ Leave >> %s]\n", __LINE__, __func__);
+    return ret;
+}
diff --git a/hw/9pfs/virtio-9p-device.c b/hw/9pfs/virtio-9p-device.c
index fdd29d8773..67e9b9d6c1 100644
--- a/hw/9pfs/virtio-9p-device.c
+++ b/hw/9pfs/virtio-9p-device.c
@@ -128,7 +128,15 @@ static int virtio_9p_device_init(VirtIODevice *vdev)
      * call back to do that. Since we are in the init path, we don't
      * use co-routines here.
      */
+#ifdef CONFIG_MARU
+#ifndef CONFIG_WIN32
+    if (s->ops->name_to_path(&s->ctx, NULL, "/", &path) < 0) {
+#else
+    if (s->ops->name_to_path(&s->ctx, NULL, "\\", &path) < 0) {
+#endif
+#else
     if (s->ops->name_to_path(&s->ctx, NULL, "/", &path) < 0) {
+#endif
         fprintf(stderr,
                 "error in converting name to path %s", strerror(errno));
         goto out;
diff --git a/hw/9pfs/virtio-9p-local-maru.c b/hw/9pfs/virtio-9p-local-maru.c
new file mode 100644
index 0000000000..71c6a51374
--- /dev/null
+++ b/hw/9pfs/virtio-9p-local-maru.c
@@ -0,0 +1,1726 @@
+/*
+ * Virtio 9p backend for Maru
+ * Based on hw/9pfs/virtio-9p-local.c:
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Contact:
+ *  Sooyoung Ha <yoosah.ha@samsung.com>
+ *  YeongKyoon Lee <yeongkyoon.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+#include "hw/virtio/virtio.h"
+#include "virtio-9p.h"
+#ifndef CONFIG_WIN32
+#include "virtio-9p-xattr.h"
+#include <arpa/inet.h>
+#include <pwd.h>
+#include <grp.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include "qemu/xattr.h"
+#endif
+#include <libgen.h>
+#ifdef CONFIG_LINUX
+#include <linux/fs.h>
+#endif
+#ifdef CONFIG_LINUX_MAGIC_H
+#include <linux/magic.h>
+#endif
+#ifndef CONFIG_WIN32
+#include <sys/ioctl.h>
+#endif
+
+#include "../../tizen/src/debug_ch.h"
+MULTI_DEBUG_CHANNEL(tizen, qemu_9p_local);
+
+#ifndef XFS_SUPER_MAGIC
+#define XFS_SUPER_MAGIC  0x58465342
+#endif
+#ifndef EXT2_SUPER_MAGIC
+#define EXT2_SUPER_MAGIC 0xEF53
+#endif
+#ifndef REISERFS_SUPER_MAGIC
+#define REISERFS_SUPER_MAGIC 0x52654973
+#endif
+#ifndef BTRFS_SUPER_MAGIC
+#define BTRFS_SUPER_MAGIC 0x9123683E
+#endif
+
+#ifdef CONFIG_WIN32
+#ifndef MSDOS_SUPER_MAGIC
+#define MSDOS_SUPER_MAGIC 0x4d44
+#endif
+#ifndef NTFS_SUPER_MAGIC
+#define NTFS_SUPER_MAGIC 0x5346544e
+#endif
+
+uint64_t hostBytesPerSector = -1;
+#endif
+
+#define VIRTFS_META_DIR ".virtfs_metadata"
+
+#ifndef CONFIG_LINUX
+#define AT_REMOVEDIR 0x200
+#endif
+
+static const char *local_mapped_attr_path(FsContext *ctx,
+                                          const char *path, char *buffer)
+{
+    char *dir_name;
+    char *tmp_path = g_strdup(path);
+    char *base_name = basename(tmp_path);
+
+    /* NULL terminate the directory */
+    dir_name = tmp_path;
+    *(base_name - 1) = '\0';
+#ifndef CONFIG_WIN32
+    snprintf(buffer, PATH_MAX, "%s/%s/%s/%s",
+             ctx->fs_root, dir_name, VIRTFS_META_DIR, base_name);
+#else
+    snprintf(buffer, PATH_MAX, "%s\\%s\\%s\\%s",
+             ctx->fs_root, dir_name, VIRTFS_META_DIR, base_name);
+    while(buffer[strlen(buffer)-1] == '\\'){
+        buffer[strlen(buffer)-1] = '\0';
+    }
+#endif
+    g_free(tmp_path);
+    return buffer;
+}
+
+static FILE *local_fopen(const char *path, const char *mode)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int fd;
+#ifndef CONFIG_WIN32
+    int o_mode = 0;
+#endif
+    FILE *fp;
+    int flags = O_NOFOLLOW;
+    /*
+     * only supports two modes
+     */
+    if (mode[0] == 'r') {
+        flags |= O_RDONLY;
+    } else if (mode[0] == 'w') {
+        flags |= O_WRONLY | O_TRUNC | O_CREAT;
+#ifndef CONFIG_WIN32
+        o_mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH | S_IWOTH;
+#endif
+    } else {
+        return NULL;
+    }
+#ifndef CONFIG_WIN32
+    fd = open(path, flags, o_mode);
+#else
+    fd = open(path, flags | O_BINARY);
+#endif
+    if (fd == -1) {
+        return NULL;
+    }
+    fp = fdopen(fd, mode);
+    if (!fp) {
+        close(fd);
+    }
+    return fp;
+}
+
+#define ATTR_MAX 100
+#ifndef CONFIG_WIN32
+static void local_mapped_file_attr(FsContext *ctx, const char *path,
+                                   struct stat *stbuf)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    FILE *fp;
+    char buf[ATTR_MAX];
+    char attr_path[PATH_MAX];
+
+    local_mapped_attr_path(ctx, path, attr_path);
+    fp = local_fopen(attr_path, "r");
+    if (!fp) {
+        return;
+    }
+    memset(buf, 0, ATTR_MAX);
+    while (fgets(buf, ATTR_MAX, fp)) {
+        if (!strncmp(buf, "virtfs.uid", 10)) {
+            stbuf->st_uid = atoi(buf+11);
+        } else if (!strncmp(buf, "virtfs.gid", 10)) {
+            stbuf->st_gid = atoi(buf+11);
+        } else if (!strncmp(buf, "virtfs.mode", 11)) {
+            stbuf->st_mode = atoi(buf+12);
+        } else if (!strncmp(buf, "virtfs.rdev", 11)) {
+            stbuf->st_rdev = atoi(buf+12);
+        }
+        memset(buf, 0, ATTR_MAX);
+    }
+    fclose(fp);
+}
+#endif
+
+static int local_lstat(FsContext *fs_ctx, V9fsPath *fs_path, struct stat *stbuf)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+
+#ifndef CONFIG_WIN32
+    err =  lstat(rpath(fs_ctx, path, buffer), stbuf);
+    if (err) {
+        return err;
+    }
+    if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+        /* Actual credentials are part of extended attrs */
+        uid_t tmp_uid;
+        gid_t tmp_gid;
+        mode_t tmp_mode;
+        dev_t tmp_dev;
+#ifdef CONFIG_LINUX
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.uid", &tmp_uid,
+                    sizeof(uid_t)) > 0) {
+            stbuf->st_uid = tmp_uid;
+        }
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.gid", &tmp_gid,
+                    sizeof(gid_t)) > 0) {
+            stbuf->st_gid = tmp_gid;
+        }
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.mode",
+                    &tmp_mode, sizeof(mode_t)) > 0) {
+            stbuf->st_mode = tmp_mode;
+        }
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.rdev", &tmp_dev,
+                    sizeof(dev_t)) > 0) {
+            stbuf->st_rdev = tmp_dev;
+        }
+#else
+	/*
+	 *  extra two parameters on Mac OS X.
+	 *  first one is position which specifies an offset within the extended attribute.
+	 *  i.e. extended attribute means "user.virtfs.uid". Currently, it is only used with
+	 *  resource fork attribute and all other extended attributes, it is reserved and should be zero.
+	 *  second one is options which specify option for retrieving extended attributes:
+	 *  (XATTR_NOFOLLOW, XATTR_SHOWCOMPRESSION)
+	 */
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.uid", &tmp_uid,
+                    sizeof(uid_t), 0, 0) > 0) {
+            stbuf->st_uid = tmp_uid;
+        }
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.gid", &tmp_gid,
+                    sizeof(gid_t), 0, 0) > 0) {
+            stbuf->st_gid = tmp_gid;
+        }
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.mode",
+                    &tmp_mode, sizeof(mode_t), 0, 0) > 0) {
+            stbuf->st_mode = tmp_mode;
+        }
+        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.rdev", &tmp_dev,
+                    sizeof(dev_t), 0, 0) > 0) {
+            stbuf->st_rdev = tmp_dev;
+        }
+#endif
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        local_mapped_file_attr(fs_ctx, path, stbuf);
+    }
+#else
+    const char * pathname = rpath(fs_ctx, path, buffer);
+    if (hostBytesPerSector == -1) {
+        DWORD BytesPerSector;
+        TCHAR tmpName[PATH_MAX] = {0};
+
+        strncpy(tmpName, pathname, 3 > PATH_MAX ? PATH_MAX : 3);
+        tmpName[4 > PATH_MAX ? PATH_MAX : 4] = '\0';
+        LPCTSTR RootPathName = (LPCTSTR)tmpName;
+
+        GetDiskFreeSpace(RootPathName, NULL, &BytesPerSector, NULL, NULL);
+        hostBytesPerSector = BytesPerSector;
+    }
+    err = _stat(pathname, stbuf);
+
+    /* Modify the permission to 777 except the directories. */
+    stbuf->st_mode = stbuf->st_mode | 0777;
+#endif
+    return err;
+}
+
+static int local_create_mapped_attr_dir(FsContext *ctx, const char *path)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    char attr_dir[PATH_MAX];
+    char *tmp_path = g_strdup(path);
+#ifndef CONFIG_WIN32
+    snprintf(attr_dir, PATH_MAX, "%s/%s/%s",
+             ctx->fs_root, dirname(tmp_path), VIRTFS_META_DIR);
+    err = mkdir(attr_dir, 0700);
+#else
+    snprintf(attr_dir, PATH_MAX, "%s\\%s\\%s",
+             ctx->fs_root, dirname(tmp_path), VIRTFS_META_DIR);
+    err = mkdir(attr_dir);
+#endif
+
+    if (err < 0 && errno == EEXIST) {
+        err = 0;
+    }
+    g_free(tmp_path);
+    return err;
+}
+
+static int local_set_mapped_file_attr(FsContext *ctx,
+                                      const char *path, FsCred *credp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    FILE *fp;
+    int ret = 0;
+    char buf[ATTR_MAX];
+    char attr_path[PATH_MAX];
+    int uid = -1, gid = -1, mode = -1, rdev = -1;
+
+    fp = local_fopen(local_mapped_attr_path(ctx, path, attr_path), "r");
+    if (!fp) {
+        goto create_map_file;
+    }
+    memset(buf, 0, ATTR_MAX);
+    while (fgets(buf, ATTR_MAX, fp)) {
+        if (!strncmp(buf, "virtfs.uid", 10)) {
+            uid = atoi(buf+11);
+        } else if (!strncmp(buf, "virtfs.gid", 10)) {
+            gid = atoi(buf+11);
+        } else if (!strncmp(buf, "virtfs.mode", 11)) {
+            mode = atoi(buf+12);
+        } else if (!strncmp(buf, "virtfs.rdev", 11)) {
+            rdev = atoi(buf+12);
+        }
+        memset(buf, 0, ATTR_MAX);
+    }
+    fclose(fp);
+    goto update_map_file;
+
+create_map_file:
+    ret = local_create_mapped_attr_dir(ctx, path);
+    if (ret < 0) {
+        goto err_out;
+    }
+
+update_map_file:
+    fp = local_fopen(attr_path, "w");
+    if (!fp) {
+        ret = -1;
+        goto err_out;
+    }
+
+    if (credp->fc_uid != -1) {
+        uid = credp->fc_uid;
+    }
+    if (credp->fc_gid != -1) {
+        gid = credp->fc_gid;
+    }
+    if (credp->fc_mode != -1) {
+        mode = credp->fc_mode;
+    }
+    if (credp->fc_rdev != -1) {
+        rdev = credp->fc_rdev;
+    }
+
+    if (uid != -1) {
+        fprintf(fp, "virtfs.uid=%d\n", uid);
+    }
+    if (gid != -1) {
+        fprintf(fp, "virtfs.gid=%d\n", gid);
+    }
+    if (mode != -1) {
+        fprintf(fp, "virtfs.mode=%d\n", mode);
+    }
+    if (rdev != -1) {
+        fprintf(fp, "virtfs.rdev=%d\n", rdev);
+    }
+    fclose(fp);
+
+err_out:
+    return ret;
+}
+
+#ifndef CONFIG_WIN32
+static int local_set_xattr(const char *path, FsCred *credp)
+{
+    int err = 0;
+
+#ifdef CONFIG_LINUX
+    if (credp->fc_uid != -1) {
+        err = setxattr(path, "user.virtfs.uid", &credp->fc_uid, sizeof(uid_t),
+                0);
+        if (err) {
+            return err;
+        }
+    }
+    if (credp->fc_gid != -1) {
+        err = setxattr(path, "user.virtfs.gid", &credp->fc_gid, sizeof(gid_t),
+                0);
+        if (err) {
+            return err;
+        }
+    }
+    if (credp->fc_mode != -1) {
+        err = setxattr(path, "user.virtfs.mode", &credp->fc_mode,
+                sizeof(mode_t), 0);
+        if (err) {
+            return err;
+        }
+    }
+    if (credp->fc_rdev != -1) {
+        err = setxattr(path, "user.virtfs.rdev", &credp->fc_rdev,
+                sizeof(dev_t), 0);
+        if (err) {
+            return err;
+        }
+    }
+#else
+    /*
+     * In case of setxattr on OS X, position parameter has been added.
+     * Its purpose is the same as getxattr. Last parameter options is the same as flags on Linux.
+     * XATTR_NOFOLLOW / XATTR_CREATE / XATTR_REPLACE
+     */
+    if (credp->fc_uid != -1) {
+        err = setxattr(path, "user.virtfs.uid", &credp->fc_uid, sizeof(uid_t),
+                 0, 0);
+         if (err) {
+             return err;
+         }
+     }
+     if (credp->fc_gid != -1) {
+         err = setxattr(path, "user.virtfs.gid", &credp->fc_gid, sizeof(gid_t),
+                 0, 0);
+         if (err) {
+             return err;
+         }
+     }
+     if (credp->fc_mode != -1) {
+         err = setxattr(path, "user.virtfs.mode", &credp->fc_mode,
+                 sizeof(mode_t), 0, 0);
+         if (err) {
+             return err;
+         }
+     }
+     if (credp->fc_rdev != -1) {
+         err = setxattr(path, "user.virtfs.rdev", &credp->fc_rdev,
+                 sizeof(dev_t), 0, 0);
+         if (err) {
+             return err;
+         }
+     }
+#endif
+
+    return 0;
+}
+#endif
+
+static int local_post_create_passthrough(FsContext *fs_ctx, const char *path,
+                                         FsCred *credp)
+{
+#ifndef CONFIG_WIN32
+    char buffer[PATH_MAX];
+
+    if (lchown(rpath(fs_ctx, path, buffer), credp->fc_uid,
+                credp->fc_gid) < 0) {
+        /*
+         * If we fail to change ownership and if we are
+         * using security model none. Ignore the error
+         */
+        if ((fs_ctx->export_flags & V9FS_SEC_MASK) != V9FS_SM_NONE) {
+            return -1;
+        }
+    }
+
+    if (chmod(rpath(fs_ctx, path, buffer), credp->fc_mode & 07777) < 0) {
+        return -1;
+    }
+#endif
+    return 0;
+}
+
+static ssize_t local_readlink(FsContext *fs_ctx, V9fsPath *fs_path,
+                              char *buf, size_t bufsz)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    ssize_t tsize = -1;
+#ifndef CONFIG_WIN32
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+
+    if ((fs_ctx->export_flags & V9FS_SM_MAPPED) ||
+        (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE)) {
+        int fd;
+        fd = open(rpath(fs_ctx, path, buffer), O_RDONLY | O_NOFOLLOW);
+        if (fd == -1) {
+            return -1;
+        }
+        do {
+            tsize = read(fd, (void *)buf, bufsz);
+        } while (tsize == -1 && errno == EINTR);
+        close(fd);
+        return tsize;
+    } else if ((fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
+               (fs_ctx->export_flags & V9FS_SM_NONE)) {
+        tsize = readlink(rpath(fs_ctx, path, buffer), buf, bufsz);
+    }
+#endif
+    return tsize;
+}
+
+static int local_close(FsContext *ctx, V9fsFidOpenState *fs)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    return close(fs->fd);
+}
+
+static int local_closedir(FsContext *ctx, V9fsFidOpenState *fs)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    return closedir(fs->dir);
+}
+
+static int local_open(FsContext *ctx, V9fsPath *fs_path,
+                      int flags, V9fsFidOpenState *fs)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+#ifdef CONFIG_WIN32
+    flags |= O_BINARY;
+#endif
+
+    fs->fd = open(rpath(ctx, path, buffer), flags | O_NOFOLLOW);
+
+    return fs->fd;
+}
+
+static int local_opendir(FsContext *ctx,
+                         V9fsPath *fs_path, V9fsFidOpenState *fs)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+
+    fs->dir = opendir(rpath(ctx, path, buffer));
+    if (!fs->dir) {
+        return -1;
+    }
+    return 0;
+}
+
+static void local_rewinddir(FsContext *ctx, V9fsFidOpenState *fs)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    return rewinddir(fs->dir);
+}
+
+static off_t local_telldir(FsContext *ctx, V9fsFidOpenState *fs)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    return telldir(fs->dir);
+}
+
+static int local_readdir_r(FsContext *ctx, V9fsFidOpenState *fs,
+                           struct dirent *entry,
+                           struct dirent **result)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int ret;
+
+again:
+#ifndef CONFIG_WIN32
+    ret = readdir_r(fs->dir, entry, result);
+    if (ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        if (!ret && *result != NULL &&
+            !strcmp(entry->d_name, VIRTFS_META_DIR)) {
+            /* skp the meta data directory */
+            goto again;
+        }
+    }
+#else
+    ret = errno;
+    *result = readdir(fs->dir);
+    ret = (ret == errno ? 0 : errno);
+    entry = *result;
+    if (ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        if (!ret && *result != NULL &&
+            !strcmp(entry->d_name, VIRTFS_META_DIR)) {
+            /* skp the meta data directory */
+            goto again;
+        }
+    }
+#endif
+    return ret;
+}
+
+static void local_seekdir(FsContext *ctx, V9fsFidOpenState *fs, off_t off)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    return seekdir(fs->dir, off);
+}
+
+static ssize_t local_preadv(FsContext *ctx, V9fsFidOpenState *fs,
+                            const struct iovec *iov,
+                            int iovcnt, off_t offset)
+{
+#ifdef CONFIG_PREADV
+    return preadv(fs->fd, iov, iovcnt, offset);
+#else
+    int err = lseek(fs->fd, offset, SEEK_SET);
+    if (err == -1) {
+        return err;
+    } else {
+        return readv(fs->fd, iov, iovcnt);
+    }
+#endif
+}
+
+static ssize_t local_pwritev(FsContext *ctx, V9fsFidOpenState *fs,
+                             const struct iovec *iov,
+                             int iovcnt, off_t offset)
+{
+    ssize_t ret;
+
+#ifdef CONFIG_PREADV
+    ret = pwritev(fs->fd, iov, iovcnt, offset);
+#else
+    int err = lseek(fs->fd, offset, SEEK_SET);
+    if (err == -1) {
+        return err;
+    } else {
+        ret = writev(fs->fd, iov, iovcnt);
+    }
+#endif
+#ifdef CONFIG_SYNC_FILE_RANGE
+    if (ret > 0 && ctx->export_flags & V9FS_IMMEDIATE_WRITEOUT) {
+        /*
+         * Initiate a writeback. This is not a data integrity sync.
+         * We want to ensure that we don't leave dirty pages in the cache
+         * after write when writeout=immediate is sepcified.
+         */
+        sync_file_range(fs->fd, offset, ret,
+                        SYNC_FILE_RANGE_WAIT_BEFORE | SYNC_FILE_RANGE_WRITE);
+    }
+#endif
+    return ret;
+}
+
+static int local_chmod(FsContext *fs_ctx, V9fsPath *fs_path, FsCred *credp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+#ifndef CONFIG_WIN32
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+
+    if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+        return local_set_xattr(rpath(fs_ctx, path, buffer), credp);
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        return local_set_mapped_file_attr(fs_ctx, path, credp);
+    } else if ((fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
+               (fs_ctx->export_flags & V9FS_SM_NONE)) {
+        return chmod(rpath(fs_ctx, path, buffer), credp->fc_mode);
+    }
+#endif
+    return -1;
+}
+
+static int local_mknod(FsContext *fs_ctx, V9fsPath *dir_path,
+                       const char *name, FsCred *credp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err = -1;
+#ifndef CONFIG_WIN32
+    char *path;
+    int serrno = 0;
+    V9fsString fullname;
+    char buffer[PATH_MAX];
+
+    v9fs_string_init(&fullname);
+    v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
+    path = fullname.data;
+
+    /* Determine the security model */
+    if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+        err = mknod(rpath(fs_ctx, path, buffer),
+                SM_LOCAL_MODE_BITS|S_IFREG, 0);
+        if (err == -1) {
+            goto out;
+        }
+        err = local_set_xattr(rpath(fs_ctx, path, buffer), credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+
+        err = mknod(rpath(fs_ctx, path, buffer),
+                    SM_LOCAL_MODE_BITS|S_IFREG, 0);
+        if (err == -1) {
+            goto out;
+        }
+        err = local_set_mapped_file_attr(fs_ctx, path, credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    } else if ((fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
+               (fs_ctx->export_flags & V9FS_SM_NONE)) {
+        err = mknod(rpath(fs_ctx, path, buffer), credp->fc_mode,
+                credp->fc_rdev);
+        if (err == -1) {
+            goto out;
+        }
+        err = local_post_create_passthrough(fs_ctx, path, credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    }
+    goto out;
+
+err_end:
+    remove(rpath(fs_ctx, path, buffer));
+    errno = serrno;
+out:
+    v9fs_string_free(&fullname);
+#endif
+    return err;
+}
+
+static int local_mkdir(FsContext *fs_ctx, V9fsPath *dir_path,
+                       const char *name, FsCred *credp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char *path;
+    int err = -1;
+    int serrno = 0;
+    V9fsString fullname;
+    char buffer[PATH_MAX];
+
+    v9fs_string_init(&fullname);
+#ifndef CONFIG_WIN32
+    v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
+#else
+    v9fs_string_sprintf(&fullname, "%s\\%s", dir_path->data, name);
+    while((fullname.data)[strlen(fullname.data)-1] == '\\'){
+        (fullname.data)[strlen(fullname.data)-1] = '\0';
+    }
+#endif
+    path = fullname.data;
+
+#ifndef CONFIG_WIN32
+    /* Determine the security model */
+    if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+        err = mkdir(rpath(fs_ctx, path, buffer), SM_LOCAL_DIR_MODE_BITS);
+        if (err == -1) {
+            goto out;
+        }
+        credp->fc_mode = credp->fc_mode|S_IFDIR;
+        err = local_set_xattr(rpath(fs_ctx, path, buffer), credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        err = mkdir(rpath(fs_ctx, path, buffer), SM_LOCAL_DIR_MODE_BITS);
+        if (err == -1) {
+            goto out;
+        }
+        credp->fc_mode = credp->fc_mode|S_IFDIR;
+        err = local_set_mapped_file_attr(fs_ctx, path, credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    } else if ((fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
+               (fs_ctx->export_flags & V9FS_SM_NONE)) {
+        err = mkdir(rpath(fs_ctx, path, buffer), credp->fc_mode);
+        if (err == -1) {
+            goto out;
+        }
+        err = local_post_create_passthrough(fs_ctx, path, credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    }
+#else
+    err = mkdir(rpath(fs_ctx, path, buffer));
+#endif
+    goto out;
+
+err_end:
+    remove(rpath(fs_ctx, path, buffer));
+    errno = serrno;
+out:
+    v9fs_string_free(&fullname);
+    return err;
+}
+
+static int local_fstat(FsContext *fs_ctx, int fid_type,
+                       V9fsFidOpenState *fs, struct stat *stbuf)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err, fd;
+
+    if (fid_type == P9_FID_DIR) {
+#ifndef CONFIG_WIN32
+        fd = dirfd(fs->dir);
+#else
+        fd = fs->fd;
+#endif
+    } else {
+        fd = fs->fd;
+    }
+
+    err = fstat(fd, stbuf);
+    if (err) {
+        return err;
+    }
+    if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+#ifndef CONFIG_WIN32
+        /* Actual credentials are part of extended attrs */
+        uid_t tmp_uid;
+        gid_t tmp_gid;
+        mode_t tmp_mode;
+        dev_t tmp_dev;
+
+#ifdef CONFIG_LINUX
+        if (fgetxattr(fd, "user.virtfs.uid",
+                      &tmp_uid, sizeof(uid_t)) > 0) {
+            stbuf->st_uid = tmp_uid;
+        }
+        if (fgetxattr(fd, "user.virtfs.gid",
+                      &tmp_gid, sizeof(gid_t)) > 0) {
+            stbuf->st_gid = tmp_gid;
+        }
+        if (fgetxattr(fd, "user.virtfs.mode",
+                      &tmp_mode, sizeof(mode_t)) > 0) {
+            stbuf->st_mode = tmp_mode;
+        }
+        if (fgetxattr(fd, "user.virtfs.rdev",
+                      &tmp_dev, sizeof(dev_t)) > 0) {
+                stbuf->st_rdev = tmp_dev;
+        }
+#else
+        if (fgetxattr(fd, "user.virtfs.uid",
+                      &tmp_uid, sizeof(uid_t), 0, 0) > 0) {
+            stbuf->st_uid = tmp_uid;
+        }
+        if (fgetxattr(fd, "user.virtfs.gid",
+                      &tmp_gid, sizeof(gid_t), 0, 0) > 0) {
+            stbuf->st_gid = tmp_gid;
+        }
+        if (fgetxattr(fd, "user.virtfs.mode",
+                      &tmp_mode, sizeof(mode_t), 0, 0) > 0) {
+            stbuf->st_mode = tmp_mode;
+        }
+        if (fgetxattr(fd, "user.virtfs.rdev",
+                      &tmp_dev, sizeof(dev_t), 0, 0) > 0) {
+                stbuf->st_rdev = tmp_dev;
+        }
+#endif
+#endif
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        errno = EOPNOTSUPP;
+        return -1;
+    }
+    return err;
+}
+
+static int local_open2(FsContext *fs_ctx, V9fsPath *dir_path, const char *name,
+                       int flags, FsCred *credp, V9fsFidOpenState *fs)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char *path;
+    int fd = -1;
+    int err = -1;
+    int serrno = 0;
+    V9fsString fullname;
+    char buffer[PATH_MAX];
+
+    /*
+     * Mark all the open to not follow symlinks
+     */
+    flags |= O_NOFOLLOW;
+
+    v9fs_string_init(&fullname);
+#ifndef CONFIG_WIN32
+    v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
+#else
+    v9fs_string_sprintf(&fullname, "%s\\%s", dir_path->data, name);
+    flags |= O_BINARY;
+#endif
+    path = fullname.data;
+
+    /* Determine the security model */
+    if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+        fd = open(rpath(fs_ctx, path, buffer), flags, SM_LOCAL_MODE_BITS);
+        if (fd == -1) {
+            err = fd;
+            goto out;
+        }
+#ifndef CONFIG_WIN32
+        credp->fc_mode = credp->fc_mode|S_IFREG;
+        /* Set cleint credentials in xattr */
+        err = local_set_xattr(rpath(fs_ctx, path, buffer), credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+#endif
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        fd = open(rpath(fs_ctx, path, buffer), flags, SM_LOCAL_MODE_BITS);
+        if (fd == -1) {
+            err = fd;
+            goto out;
+        }
+        credp->fc_mode = credp->fc_mode|S_IFREG;
+        /* Set client credentials in .virtfs_metadata directory files */
+        err = local_set_mapped_file_attr(fs_ctx, path, credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    } else if ((fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
+               (fs_ctx->export_flags & V9FS_SM_NONE)) {
+        fd = open(rpath(fs_ctx, path, buffer), flags, credp->fc_mode);
+        if (fd == -1) {
+            err = fd;
+            goto out;
+        }
+        err = local_post_create_passthrough(fs_ctx, path, credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    }
+    err = fd;
+    fs->fd = fd;
+    goto out;
+
+err_end:
+    close(fd);
+    remove(rpath(fs_ctx, path, buffer));
+    errno = serrno;
+out:
+    v9fs_string_free(&fullname);
+    return err;
+}
+
+static int local_symlink(FsContext *fs_ctx, const char *oldpath,
+                         V9fsPath *dir_path, const char *name, FsCred *credp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err = -1;
+#ifndef CONFIG_WIN32
+    int serrno = 0;
+    char *newpath;
+    V9fsString fullname;
+    char buffer[PATH_MAX];
+
+    int flags = O_CREAT|O_EXCL|O_RDWR|O_NOFOLLOW;
+
+    v9fs_string_init(&fullname);
+    v9fs_string_sprintf(&fullname, "%s/%s", dir_path->data, name);
+    newpath = fullname.data;
+
+    /* Determine the security model */
+    if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+        int fd;
+        ssize_t oldpath_size, write_size;
+        fd = open(rpath(fs_ctx, newpath, buffer), flags, SM_LOCAL_MODE_BITS);
+        if (fd == -1) {
+            err = fd;
+            goto out;
+        }
+        /* Write the oldpath (target) to the file. */
+        oldpath_size = strlen(oldpath);
+        do {
+            write_size = write(fd, (void *)oldpath, oldpath_size);
+        } while (write_size == -1 && errno == EINTR);
+
+        if (write_size != oldpath_size) {
+            serrno = errno;
+            close(fd);
+            err = -1;
+            goto err_end;
+        }
+        close(fd);
+        /* Set cleint credentials in symlink's xattr */
+        credp->fc_mode = credp->fc_mode|S_IFLNK;
+        err = local_set_xattr(rpath(fs_ctx, newpath, buffer), credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        int fd;
+        ssize_t oldpath_size, write_size;
+        fd = open(rpath(fs_ctx, newpath, buffer), flags, SM_LOCAL_MODE_BITS);
+        if (fd == -1) {
+            err = fd;
+            goto out;
+        }
+        /* Write the oldpath (target) to the file. */
+        oldpath_size = strlen(oldpath);
+        do {
+            write_size = write(fd, (void *)oldpath, oldpath_size);
+        } while (write_size == -1 && errno == EINTR);
+
+        if (write_size != oldpath_size) {
+            serrno = errno;
+            close(fd);
+            err = -1;
+            goto err_end;
+        }
+        close(fd);
+        /* Set cleint credentials in symlink's xattr */
+        credp->fc_mode = credp->fc_mode|S_IFLNK;
+        err = local_set_mapped_file_attr(fs_ctx, newpath, credp);
+        if (err == -1) {
+            serrno = errno;
+            goto err_end;
+        }
+    } else if ((fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
+               (fs_ctx->export_flags & V9FS_SM_NONE)) {
+        err = symlink(oldpath, rpath(fs_ctx, newpath, buffer));
+        if (err) {
+            goto out;
+        }
+        err = lchown(rpath(fs_ctx, newpath, buffer), credp->fc_uid,
+                     credp->fc_gid);
+        if (err == -1) {
+            /*
+             * If we fail to change ownership and if we are
+             * using security model none. Ignore the error
+             */
+            if ((fs_ctx->export_flags & V9FS_SEC_MASK) != V9FS_SM_NONE) {
+                serrno = errno;
+                goto err_end;
+            } else
+                err = 0;
+        }
+    }
+    goto out;
+
+err_end:
+    remove(rpath(fs_ctx, newpath, buffer));
+    errno = serrno;
+out:
+    v9fs_string_free(&fullname);
+#endif
+    return err;
+}
+
+static int local_link(FsContext *ctx, V9fsPath *oldpath,
+                      V9fsPath *dirpath, const char *name)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int ret = 0;
+#ifndef CONFIG_WIN32
+    V9fsString newpath;
+    char buffer[PATH_MAX], buffer1[PATH_MAX];
+
+    v9fs_string_init(&newpath);
+    v9fs_string_sprintf(&newpath, "%s/%s", dirpath->data, name);
+
+    ret = link(rpath(ctx, oldpath->data, buffer),
+               rpath(ctx, newpath.data, buffer1));
+
+    /* now link the virtfs_metadata files */
+    if (!ret && (ctx->export_flags & V9FS_SM_MAPPED_FILE)) {
+        /* Link the .virtfs_metadata files. Create the metada directory */
+        ret = local_create_mapped_attr_dir(ctx, newpath.data);
+        if (ret < 0) {
+            goto err_out;
+        }
+        ret = link(local_mapped_attr_path(ctx, oldpath->data, buffer),
+                   local_mapped_attr_path(ctx, newpath.data, buffer1));
+        if (ret < 0 && errno != ENOENT) {
+            goto err_out;
+        }
+    }
+err_out:
+    v9fs_string_free(&newpath);
+#endif
+    return ret;
+}
+
+static int local_truncate(FsContext *ctx, V9fsPath *fs_path, off_t size)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+#ifndef CONFIG_WIN32
+    return truncate(rpath(ctx, path, buffer), size);
+#else
+    int ret;
+    int fd = open(rpath(ctx, path, buffer), O_RDWR | O_BINARY | O_NOFOLLOW);
+    if(fd < 0) {
+        ret = -1;
+    } else {
+        ret = ftruncate(fd, size);
+        close(fd);
+    }
+    return ret;
+#endif
+}
+
+static int local_rename(FsContext *ctx, const char *oldpath,
+        const char *newpath)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    char buffer[PATH_MAX], buffer1[PATH_MAX];
+
+    if (ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        err = local_create_mapped_attr_dir(ctx, newpath);
+        if (err < 0) {
+            return err;
+        }
+        /* rename the .virtfs_metadata files */
+        err = rename(local_mapped_attr_path(ctx, oldpath, buffer),
+                     local_mapped_attr_path(ctx, newpath, buffer1));
+        if (err < 0 && errno != ENOENT) {
+            return err;
+        }
+    }
+#ifndef CONFIG_WIN32
+    return rename(rpath(ctx, oldpath, buffer), rpath(ctx, newpath, buffer1));
+#else
+    if (!MoveFileEx((LPCTSTR)rpath(ctx, oldpath, buffer),
+                    (LPCTSTR)rpath(ctx, newpath, buffer1), MOVEFILE_REPLACE_EXISTING)){
+        err = -(GetLastError());
+        ERR("[%d][ >> %s] err: %d\n", __LINE__, __func__, err);
+    } else {
+        err = 0;
+    }
+    return err;
+#endif
+}
+
+static int local_chown(FsContext *fs_ctx, V9fsPath *fs_path, FsCred *credp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+#ifndef CONFIG_WIN32
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+
+    if ((credp->fc_uid == -1 && credp->fc_gid == -1) ||
+        (fs_ctx->export_flags & V9FS_SM_PASSTHROUGH) ||
+        (fs_ctx->export_flags & V9FS_SM_NONE)) {
+        return lchown(rpath(fs_ctx, path, buffer),
+                      credp->fc_uid, credp->fc_gid);
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED) {
+        return local_set_xattr(rpath(fs_ctx, path, buffer), credp);
+    } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        return local_set_mapped_file_attr(fs_ctx, path, credp);
+    }
+#endif
+    return -1;
+}
+
+#ifdef CONFIG_WIN32
+/* The function that change file last access and modification times for WIN32 */
+static int win_utimes (const char *filename, const struct timeval tv[2])
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+
+    FILETIME LastAccessTime, LastWriteTime;
+
+    ULARGE_INTEGER tmpTime;
+
+    ULONGLONG WindowsUnixTimeGap = 11644473600; // between 1601.01.01 and 1970.01.01
+    ULONGLONG WindowsSecond = 10000000; // 1sec / 100nanosec
+
+    int res = 0;
+
+    HANDLE hFile = CreateFile(filename, FILE_WRITE_ATTRIBUTES,
+                            FILE_SHARE_READ | FILE_SHARE_WRITE, NULL, OPEN_EXISTING,
+                            FILE_ATTRIBUTE_NORMAL | FILE_FLAG_BACKUP_SEMANTICS, NULL);
+    if (hFile == INVALID_HANDLE_VALUE) {
+        if (GetFileAttributes(filename) & FILE_ATTRIBUTE_DIRECTORY) {
+            res = 0;
+        }
+        else {
+            res = -1;
+        }
+    } else {
+        if (!tv) { // case of NULL
+            GetSystemTimeAsFileTime(&LastAccessTime);
+            LastWriteTime = LastAccessTime;
+        } else {
+            tmpTime.QuadPart = UInt32x32To64(WindowsUnixTimeGap + tv[0].tv_sec, WindowsSecond)
+                               + tv[0].tv_usec * 10;
+            LastAccessTime.dwHighDateTime = tmpTime.HighPart;
+            LastAccessTime.dwLowDateTime = tmpTime.LowPart;
+
+            tmpTime.QuadPart = UInt32x32To64(WindowsUnixTimeGap + tv[1].tv_sec, WindowsSecond)
+                               + tv[1].tv_usec * 10;
+            LastWriteTime.dwHighDateTime = tmpTime.HighPart;
+            LastWriteTime.dwLowDateTime = tmpTime.LowPart;
+        }
+        if (!SetFileTime(hFile, NULL, &LastAccessTime, &LastWriteTime)) {
+            res = -1;
+        } else {
+            res = 0;
+        }
+    }
+
+    if (hFile) {
+        CloseHandle(hFile);
+    }
+    return res;
+}
+#endif
+
+static int local_utimensat(FsContext *s, V9fsPath *fs_path,
+                           const struct timespec *buf)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+#ifndef CONFIG_WIN32
+    return qemu_utimens(rpath(s, path, buffer), buf);
+#else
+    const char * r_path = rpath(s, path, buffer);
+    struct timeval tv[2], tv_now;
+    struct stat st;
+    int i;
+
+    /* happy if special cases */
+    if (buf[0].tv_nsec == UTIME_OMIT && buf[1].tv_nsec == UTIME_OMIT) {
+        return 0;
+    }
+    if (buf[0].tv_nsec == UTIME_NOW && buf[1].tv_nsec == UTIME_NOW) {
+        return win_utimes(r_path, NULL);
+    }
+
+    /* prepare for hard cases */
+    if (buf[0].tv_nsec == UTIME_NOW || buf[1].tv_nsec == UTIME_NOW) {
+        gettimeofday(&tv_now, NULL);
+    }
+    if (buf[0].tv_nsec == UTIME_OMIT || buf[1].tv_nsec == UTIME_OMIT) {
+        _stat(r_path, &st);
+    }
+
+    for (i = 0; i < 2; i++) {
+        if (buf[i].tv_nsec == UTIME_NOW) {
+            tv[i].tv_sec = tv_now.tv_sec;
+            tv[i].tv_usec = tv_now.tv_usec;
+        } else if (buf[i].tv_nsec == UTIME_OMIT) {
+            tv[i].tv_sec = (i == 0) ? st.st_atime : st.st_mtime;
+            tv[i].tv_usec = 0;
+        } else {
+            tv[i].tv_sec = buf[i].tv_sec;
+            tv[i].tv_usec = buf[i].tv_nsec / 1000;
+        }
+    }
+
+    return win_utimes(r_path, &tv[0]);
+#endif
+}
+
+static int local_remove(FsContext *ctx, const char *path)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    struct stat stbuf;
+    char buffer[PATH_MAX];
+
+    if (ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+#ifndef CONFIG_WIN32
+        err =  lstat(rpath(ctx, path, buffer), &stbuf);
+#else
+        err = _stat(rpath(ctx, path, buffer), &stbuf);
+#endif
+        if (err) {
+            goto err_out;
+        }
+        /*
+         * If directory remove .virtfs_metadata contained in the
+         * directory
+         */
+        if (S_ISDIR(stbuf.st_mode)) {
+#ifndef CONFIG_WIN32
+            sprintf(buffer, "%s/%s/%s", ctx->fs_root, path, VIRTFS_META_DIR);
+#else
+            sprintf(buffer, "%s\\%s\\%s", ctx->fs_root, path, VIRTFS_META_DIR);
+#endif
+            err = remove(buffer);
+            if (err < 0 && errno != ENOENT) {
+                /*
+                 * We didn't had the .virtfs_metadata file. May be file created
+                 * in non-mapped mode ?. Ignore ENOENT.
+                 */
+                goto err_out;
+            }
+        }
+        /*
+         * Now remove the name from parent directory
+         * .virtfs_metadata directory
+         */
+        err = remove(local_mapped_attr_path(ctx, path, buffer));
+        if (err < 0 && errno != ENOENT) {
+            /*
+             * We didn't had the .virtfs_metadata file. May be file created
+             * in non-mapped mode ?. Ignore ENOENT.
+             */
+            goto err_out;
+        }
+    }
+    return remove(rpath(ctx, path, buffer));
+err_out:
+    return err;
+}
+
+static int local_fsync(FsContext *ctx, int fid_type,
+                       V9fsFidOpenState *fs, int datasync)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int fd;
+
+    if (fid_type == P9_FID_DIR) {
+#ifndef CONFIG_WIN32
+        fd = dirfd(fs->dir);
+#else
+        fd = fs->fd;
+#endif
+    } else {
+        fd = fs->fd;
+    }
+#ifndef CONFIG_WIN32
+    if (datasync) {
+        return qemu_fdatasync(fd);
+    } else {
+        return fsync(fd);
+    }
+#else
+    return _commit(fd);
+#endif
+}
+
+static int local_statfs(FsContext *s, V9fsPath *fs_path, struct statfs *stbuf)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char buffer[PATH_MAX];
+    char *path = fs_path->data;
+
+#ifndef CONFIG_WIN32
+    return statfs(rpath(s, path, buffer), stbuf);
+#else
+    DWORD VolumeSerialNumber,
+          MaximumComponentLength,
+          FileSystemFlags;
+
+    DWORD SectorsPerCluster,
+          BytesPerSector,
+          NumberOfFreeClusters,
+          TotalNumberOfClusters,
+          BytesPerCluster;
+
+    ULARGE_INTEGER TotalNumberOfBytes,
+                   TotalNumberOfFreeBytes,
+                   FreeBytesAvailableToCaller;
+
+    TCHAR tmpName[PATH_MAX] = {0};
+    TCHAR VolumeNameBuffer[PATH_MAX] = {0};
+    TCHAR FileSystemNameBuffer[PATH_MAX] = {0};
+
+    strncpy(tmpName, rpath(s, path, buffer), 3 > PATH_MAX ? PATH_MAX : 3);
+    tmpName[4 > PATH_MAX ? PATH_MAX : 4] = '\0';
+    LPCTSTR RootPathName = (LPCTSTR)tmpName;
+
+    if (RootPathName == NULL) {
+        ERR("[%d][%s] >> err = %d\n", __LINE__, __func__, GetLastError());
+        stbuf = NULL;
+        return -1;
+    }
+
+    if (!GetVolumeInformation(RootPathName, (LPTSTR)&VolumeNameBuffer, PATH_MAX,
+                        &VolumeSerialNumber, &MaximumComponentLength, &FileSystemFlags,
+                        (LPTSTR)&FileSystemNameBuffer, PATH_MAX)) {
+        ERR("[%d][%s] >> err = %d\n", __LINE__, __func__, GetLastError());
+        return -1;
+    }
+
+    if (!GetDiskFreeSpace(RootPathName, &SectorsPerCluster, &BytesPerSector,
+                        &NumberOfFreeClusters, &TotalNumberOfClusters)) {
+        SectorsPerCluster = 1;
+        BytesPerSector = 1;
+        NumberOfFreeClusters = 0;
+        TotalNumberOfClusters = 0;
+    }
+
+    BytesPerCluster = SectorsPerCluster * BytesPerSector;
+    TotalNumberOfBytes.QuadPart = Int32x32To64(TotalNumberOfClusters, BytesPerCluster);
+    TotalNumberOfFreeBytes.QuadPart = Int32x32To64(NumberOfFreeClusters, BytesPerCluster);
+    FreeBytesAvailableToCaller=TotalNumberOfFreeBytes;
+
+    if (!strcmp(FileSystemNameBuffer, "NTFS")) {
+        stbuf->f_type = NTFS_SUPER_MAGIC;
+    }
+    /* need to check more about other filesystems (ex CD) */
+    else {
+        stbuf->f_type = MSDOS_SUPER_MAGIC;
+    }
+    stbuf->f_bsize       = BytesPerSector;
+    stbuf->f_blocks      = TotalNumberOfBytes.QuadPart / BytesPerSector;
+    stbuf->f_bfree       = TotalNumberOfFreeBytes.QuadPart / BytesPerSector;
+    stbuf->f_bavail      = FreeBytesAvailableToCaller.QuadPart / BytesPerSector;
+    stbuf->f_files       = stbuf->f_blocks / SectorsPerCluster;
+    stbuf->f_ffree       = stbuf->f_bfree / SectorsPerCluster;
+    stbuf->f_fsid.val[0] = HIWORD(VolumeSerialNumber);
+    stbuf->f_fsid.val[1] = LOWORD(VolumeSerialNumber);
+    stbuf->f_namelen     = MaximumComponentLength;
+    stbuf->f_spare[0]    = 0;
+    stbuf->f_spare[1]    = 0;
+    stbuf->f_spare[2]    = 0;
+    stbuf->f_spare[3]    = 0;
+    stbuf->f_spare[4]    = 0;
+    stbuf->f_spare[5]    = 0;
+
+    return 0;
+#endif
+}
+
+static ssize_t local_lgetxattr(FsContext *ctx, V9fsPath *fs_path,
+                               const char *name, void *value, size_t size)
+{
+#ifndef CONFIG_WIN32
+    char *path = fs_path->data;
+
+    return v9fs_get_xattr(ctx, path, name, value, size);
+#else
+    /* xattr doesn't support on Windows */
+    return -1;
+#endif
+}
+
+static ssize_t local_llistxattr(FsContext *ctx, V9fsPath *fs_path,
+                                void *value, size_t size)
+{
+#ifndef CONFIG_WIN32
+    char *path = fs_path->data;
+
+    return v9fs_list_xattr(ctx, path, value, size);
+#else
+    /* xattr doesn't support on Windows */
+    return -1;
+#endif
+}
+
+static int local_lsetxattr(FsContext *ctx, V9fsPath *fs_path, const char *name,
+                           void *value, size_t size, int flags)
+{
+#ifndef CONFIG_WIN32
+    char *path = fs_path->data;
+
+    return v9fs_set_xattr(ctx, path, name, value, size, flags);
+#else
+    /* xattr doesn't support on Windows */
+    return -1;
+#endif
+}
+
+static int local_lremovexattr(FsContext *ctx, V9fsPath *fs_path,
+                              const char *name)
+{
+#ifndef CONFIG_WIN32
+    char *path = fs_path->data;
+
+    return v9fs_remove_xattr(ctx, path, name);
+#else
+    /* xattr doesn't support on Windows */
+    return -1;
+#endif
+}
+
+static int local_name_to_path(FsContext *ctx, V9fsPath *dir_path,
+                              const char *name, V9fsPath *target)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    if (dir_path) {
+#ifndef CONFIG_WIN32
+        v9fs_string_sprintf((V9fsString *)target, "%s/%s",
+                            dir_path->data, name);
+#else
+        v9fs_string_sprintf((V9fsString *)target, "%s\\%s",
+                            dir_path->data, name);
+    while((target->data)[strlen(target->data)-1] == '\\'){
+        (target->data)[strlen(target->data)-1] = '\0';
+    }
+#endif
+    } else {
+        v9fs_string_sprintf((V9fsString *)target, "%s", name);
+    }
+    /* Bump the size for including terminating NULL */
+    target->size++;
+    return 0;
+}
+
+static int local_renameat(FsContext *ctx, V9fsPath *olddir,
+                          const char *old_name, V9fsPath *newdir,
+                          const char *new_name)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int ret;
+    V9fsString old_full_name, new_full_name;
+
+    v9fs_string_init(&old_full_name);
+    v9fs_string_init(&new_full_name);
+
+#ifndef CONFIG_WIN32
+    v9fs_string_sprintf(&old_full_name, "%s/%s", olddir->data, old_name);
+    v9fs_string_sprintf(&new_full_name, "%s/%s", newdir->data, new_name);
+#else
+    v9fs_string_sprintf(&old_full_name, "%s\\%s", olddir->data, old_name);
+    v9fs_string_sprintf(&new_full_name, "%s\\%s", newdir->data, new_name);
+#endif
+
+    ret = local_rename(ctx, old_full_name.data, new_full_name.data);
+    v9fs_string_free(&old_full_name);
+    v9fs_string_free(&new_full_name);
+    return ret;
+}
+
+static int local_unlinkat(FsContext *ctx, V9fsPath *dir,
+                          const char *name, int flags)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int ret;
+    V9fsString fullname;
+    char buffer[PATH_MAX];
+
+    v9fs_string_init(&fullname);
+
+#ifndef CONFIG_WIN32
+    v9fs_string_sprintf(&fullname, "%s/%s", dir->data, name);
+#else
+    v9fs_string_sprintf(&fullname, "%s\\%s", dir->data, name);
+    while(fullname.data[strlen(fullname.data)-1] == '\\'){
+        fullname.data[strlen(fullname.data)-1] = '\0';
+    }
+#endif
+    if (ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+#ifdef CONFIG_VIRTFS_DARWIN
+        // TODO: find something to replace AT_REMOVEDIR feature.
+        if (flags == AT_REMOVEDIR) {
+            /*
+             * If directory remove .virtfs_metadata contained in the
+             * directory
+             */
+#ifndef CONFIG_WIN32
+            sprintf(buffer, "%s/%s/%s", ctx->fs_root,
+                    fullname.data, VIRTFS_META_DIR);
+#else
+            sprintf(buffer, "%s\\%s\\%s", ctx->fs_root,
+                    fullname.data, VIRTFS_META_DIR);
+#endif
+            ret = remove(buffer);
+            if (ret < 0 && errno != ENOENT) {
+                /*
+                 * We didn't had the .virtfs_metadata file. May be file created
+                 * in non-mapped mode ?. Ignore ENOENT.
+                 */
+                goto err_out;
+            }
+        }
+#endif
+        /*
+         * Now remove the name from parent directory
+         * .virtfs_metadata directory.
+         */
+        ret = remove(local_mapped_attr_path(ctx, fullname.data, buffer));
+        if (ret < 0 && errno != ENOENT) {
+            /*
+             * We didn't had the .virtfs_metadata file. May be file created
+             * in non-mapped mode ?. Ignore ENOENT.
+             */
+            goto err_out;
+        }
+    }
+    /* Remove the name finally */
+#ifndef CONFIG_WIN32
+    ret = remove(rpath(ctx, fullname.data, buffer));
+#else
+    if (flags == AT_REMOVEDIR) { // is dir
+        ret = rmdir(rpath(ctx, fullname.data, buffer));
+    } else { //is file
+        ret = remove(rpath(ctx, fullname.data, buffer));
+    }
+#endif
+    v9fs_string_free(&fullname);
+
+err_out:
+    return ret;
+}
+
+#ifndef CONFIG_WIN32
+static int local_ioc_getversion(FsContext *ctx, V9fsPath *path,
+                                mode_t st_mode, uint64_t *st_gen)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+
+#ifdef FS_IOC_GETVERSION
+    V9fsFidOpenState fid_open;
+
+    /*
+     * Do not try to open special files like device nodes, fifos etc
+     * We can get fd for regular files and directories only
+     */
+    if (!S_ISREG(st_mode) && !S_ISDIR(st_mode)) {
+            return 0;
+    }
+    err = local_open(ctx, path, O_RDONLY, &fid_open);
+    if (err < 0) {
+        return err;
+    }
+    err = ioctl(fid_open.fd, FS_IOC_GETVERSION, st_gen);
+    local_close(ctx, &fid_open);
+#else
+    err = -ENOTTY;
+#endif
+    return err;
+}
+#endif
+
+static int local_init(FsContext *ctx)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err = 0;
+#ifdef FS_IOC_GETVERSION
+    struct statfs stbuf;
+#endif
+
+#ifndef CONFIG_WIN32
+    if (ctx->export_flags & V9FS_SM_PASSTHROUGH) {
+        ctx->xops = passthrough_xattr_ops;
+    } else if (ctx->export_flags & V9FS_SM_MAPPED) {
+        ctx->xops = mapped_xattr_ops;
+    } else if (ctx->export_flags & V9FS_SM_NONE) {
+        ctx->xops = none_xattr_ops;
+    } else if (ctx->export_flags & V9FS_SM_MAPPED_FILE) {
+        /*
+         * xattr operation for mapped-file and passthrough
+         * remain same.
+         */
+        ctx->xops = passthrough_xattr_ops;
+    }
+#else
+    ctx->xops = NULL;
+#endif
+    ctx->export_flags |= V9FS_PATHNAME_FSCONTEXT;
+#ifdef FS_IOC_GETVERSION
+    /*
+     * use ioc_getversion only if the iocl is definied
+     */
+    err = statfs(ctx->fs_root, &stbuf);
+    if (!err) {
+        switch (stbuf.f_type) {
+        case EXT2_SUPER_MAGIC:
+        case BTRFS_SUPER_MAGIC:
+        case REISERFS_SUPER_MAGIC:
+        case XFS_SUPER_MAGIC:
+            ctx->exops.get_st_gen = local_ioc_getversion;
+            break;
+        }
+    }
+#endif
+    return err;
+}
+
+static int local_parse_opts(QemuOpts *opts, struct FsDriverEntry *fse)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    const char *sec_model = qemu_opt_get(opts, "security_model");
+    const char *path = qemu_opt_get(opts, "path");
+
+    if (!sec_model) {
+        fprintf(stderr, "security model not specified, "
+                "local fs needs security model\nvalid options are:"
+                "\tsecurity_model=[passthrough|mapped|none]\n");
+        return -1;
+    }
+
+    if (!strcmp(sec_model, "passthrough")) {
+        fse->export_flags |= V9FS_SM_PASSTHROUGH;
+    } else if (!strcmp(sec_model, "mapped") ||
+               !strcmp(sec_model, "mapped-xattr")) {
+        fse->export_flags |= V9FS_SM_MAPPED;
+    } else if (!strcmp(sec_model, "none")) {
+        fse->export_flags |= V9FS_SM_NONE;
+    } else if (!strcmp(sec_model, "mapped-file")) {
+        fse->export_flags |= V9FS_SM_MAPPED_FILE;
+    } else {
+        fprintf(stderr, "Invalid security model %s specified, valid options are"
+                "\n\t [passthrough|mapped-xattr|mapped-file|none]\n",
+                sec_model);
+        return -1;
+    }
+
+    if (!path) {
+        fprintf(stderr, "fsdev: No path specified.\n");
+        return -1;
+    }
+    fse->path = g_strdup(path);
+
+    return 0;
+}
+
+FileOperations local_ops = {
+    .parse_opts = local_parse_opts,
+    .init  = local_init,
+    .lstat = local_lstat,
+    .readlink = local_readlink,
+    .close = local_close,
+    .closedir = local_closedir,
+    .open = local_open,
+    .opendir = local_opendir,
+    .rewinddir = local_rewinddir,
+    .telldir = local_telldir,
+    .readdir_r = local_readdir_r,
+    .seekdir = local_seekdir,
+    .statfs = local_statfs,
+    .preadv = local_preadv,
+    .pwritev = local_pwritev,
+    .truncate = local_truncate,
+    .utimensat = local_utimensat,
+    .open2 = local_open2,
+    .lgetxattr = local_lgetxattr,
+    .llistxattr = local_llistxattr,
+    .lsetxattr = local_lsetxattr,
+    .lremovexattr = local_lremovexattr,
+    .mkdir = local_mkdir,
+    .symlink = local_symlink,
+    .remove = local_remove,
+    .fstat = local_fstat,
+    .chmod = local_chmod,
+    .mknod = local_mknod,
+    .link = local_link,
+    .rename = local_rename,
+    .chown = local_chown,
+    .fsync = local_fsync,
+    .name_to_path = local_name_to_path,
+    .unlinkat = local_unlinkat,
+    .renameat  = local_renameat,
+};
diff --git a/hw/9pfs/virtio-9p-local.c b/hw/9pfs/virtio-9p-local.c
index 3b4967777c..fc93e9e6e8 100644
--- a/hw/9pfs/virtio-9p-local.c
+++ b/hw/9pfs/virtio-9p-local.c
@@ -21,9 +21,7 @@
 #include <sys/un.h>
 #include "qemu/xattr.h"
 #include <libgen.h>
-#ifdef CONFIG_LINUX
 #include <linux/fs.h>
-#endif
 #ifdef CONFIG_LINUX_MAGIC_H
 #include <linux/magic.h>
 #endif
@@ -44,10 +42,6 @@
 
 #define VIRTFS_META_DIR ".virtfs_metadata"
 
-#ifdef CONFIG_DARWIN
-#define AT_REMOVEDIR 0x200
-#endif
-
 static const char *local_mapped_attr_path(FsContext *ctx,
                                           const char *path, char *buffer)
 {
@@ -137,7 +131,6 @@ static int local_lstat(FsContext *fs_ctx, V9fsPath *fs_path, struct stat *stbuf)
         gid_t tmp_gid;
         mode_t tmp_mode;
         dev_t tmp_dev;
-#ifdef CONFIG_LINUX
         if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.uid", &tmp_uid,
                     sizeof(uid_t)) > 0) {
             stbuf->st_uid = tmp_uid;
@@ -154,32 +147,6 @@ static int local_lstat(FsContext *fs_ctx, V9fsPath *fs_path, struct stat *stbuf)
                         sizeof(dev_t)) > 0) {
                 stbuf->st_rdev = tmp_dev;
         }
-#else
-        /*
-         *  extra two parameters on Mac OS X.
-         *  first one is position which specifies an offset within the extended attribute.
-         *  i.e. extended attribute means "user.virtfs.uid". Currently, it is only used with
-         *  resource fork attribute and all other extended attributes, it is reserved and should be zero.
-         *  second one is options which specify option for retrieving extended attributes:
-         *  (XATTR_NOFOLLOW, XATTR_SHOWCOMPRESSION)
-         */
-        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.uid", &tmp_uid,
-                    sizeof(uid_t), 0, 0) > 0) {
-            stbuf->st_uid = tmp_uid;
-        }
-        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.gid", &tmp_gid,
-                    sizeof(gid_t), 0, 0) > 0) {
-            stbuf->st_gid = tmp_gid;
-        }
-        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.mode",
-                    &tmp_mode, sizeof(mode_t), 0, 0) > 0) {
-            stbuf->st_mode = tmp_mode;
-        }
-        if (getxattr(rpath(fs_ctx, path, buffer), "user.virtfs.rdev", &tmp_dev,
-                        sizeof(dev_t), 0, 0) > 0) {
-            stbuf->st_rdev = tmp_dev;
-        }
-#endif
     } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
         local_mapped_file_attr(fs_ctx, path, stbuf);
     }
@@ -281,7 +248,6 @@ static int local_set_xattr(const char *path, FsCred *credp)
 {
     int err;
 
-#ifdef CONFIG_LINUX
     if (credp->fc_uid != -1) {
         err = setxattr(path, "user.virtfs.uid", &credp->fc_uid, sizeof(uid_t),
                 0);
@@ -310,43 +276,6 @@ static int local_set_xattr(const char *path, FsCred *credp)
             return err;
         }
     }
-#else
-    /*
-     * In case of setxattr on OS X, position parameter has been added.
-     * Its purpose is the same as getxattr. Last parameter options is the same as flags on Linux.
-     * XATTR_NOFOLLOW / XATTR_CREATE / XATTR_REPLACE
-     */
-    if (credp->fc_uid != -1) {
-        err = setxattr(path, "user.virtfs.uid", &credp->fc_uid, sizeof(uid_t),
-                0, 0);
-        if (err) {
-            return err;
-        }
-    }
-    if (credp->fc_gid != -1) {
-        err = setxattr(path, "user.virtfs.gid", &credp->fc_gid, sizeof(gid_t),
-                0, 0);
-        if (err) {
-            return err;
-        }
-    }
-    if (credp->fc_mode != -1) {
-        err = setxattr(path, "user.virtfs.mode", &credp->fc_mode,
-                sizeof(mode_t), 0, 0);
-        if (err) {
-            return err;
-        }
-    }
-    if (credp->fc_rdev != -1) {
-        err = setxattr(path, "user.virtfs.rdev", &credp->fc_rdev,
-                sizeof(dev_t), 0, 0);
-        if (err) {
-            return err;
-        }
-    }
-
-#endif
-
     return 0;
 }
 
@@ -666,7 +595,6 @@ static int local_fstat(FsContext *fs_ctx, int fid_type,
         mode_t tmp_mode;
         dev_t tmp_dev;
 
-#ifdef CONFIG_LINUX
         if (fgetxattr(fd, "user.virtfs.uid",
                       &tmp_uid, sizeof(uid_t)) > 0) {
             stbuf->st_uid = tmp_uid;
@@ -683,25 +611,6 @@ static int local_fstat(FsContext *fs_ctx, int fid_type,
                       &tmp_dev, sizeof(dev_t)) > 0) {
                 stbuf->st_rdev = tmp_dev;
         }
-#else
-        if (fgetxattr(fd, "user.virtfs.uid",
-                      &tmp_uid, sizeof(uid_t), 0, 0) > 0) {
-            stbuf->st_uid = tmp_uid;
-        }
-        if (fgetxattr(fd, "user.virtfs.gid",
-                      &tmp_gid, sizeof(gid_t), 0, 0) > 0) {
-            stbuf->st_gid = tmp_gid;
-        }
-        if (fgetxattr(fd, "user.virtfs.mode",
-                      &tmp_mode, sizeof(mode_t), 0, 0) > 0) {
-            stbuf->st_mode = tmp_mode;
-        }
-        if (fgetxattr(fd, "user.virtfs.rdev",
-                      &tmp_dev, sizeof(dev_t), 0, 0) > 0) {
-                stbuf->st_rdev = tmp_dev;
-        }
-
-#endif
     } else if (fs_ctx->export_flags & V9FS_SM_MAPPED_FILE) {
         errno = EOPNOTSUPP;
         return -1;
@@ -1185,9 +1094,7 @@ static int local_ioc_getversion(FsContext *ctx, V9fsPath *path,
 static int local_init(FsContext *ctx)
 {
     int err = 0;
-#ifdef FS_IOC_GETVERSION
     struct statfs stbuf;
-#endif
 
     if (ctx->export_flags & V9FS_SM_PASSTHROUGH) {
         ctx->xops = passthrough_xattr_ops;
diff --git a/hw/9pfs/virtio-9p-maru.c b/hw/9pfs/virtio-9p-maru.c
new file mode 100644
index 0000000000..63bc271177
--- /dev/null
+++ b/hw/9pfs/virtio-9p-maru.c
@@ -0,0 +1,3549 @@
+/*
+ * Virtio 9p backend for Maru
+ * Based on hw/9pfs/virtio-9p.c:
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Contact:
+ *  Sooyoung Ha <yoosah.ha@samsung.com>
+ *  YeongKyoon Lee <yeongkyoon.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+#include "hw/virtio/virtio.h"
+#include "hw/i386/pc.h"
+#include "qemu/sockets.h"
+#include "virtio-9p.h"
+#include "fsdev/qemu-fsdev.h"
+#include "virtio-9p-xattr.h"
+#include "virtio-9p-coth.h"
+#include "trace.h"
+#include "migration/migration.h"
+
+#ifdef CONFIG_WIN32
+#include "tizen/src/resources_win32.h"
+
+/* On windows, there's no mknod function. The device number is meaningless */
+#define makedev(x,y) 0
+#define major(x) 0
+#define minor(x) 0
+
+extern uint64_t hostBytesPerSector;
+#endif
+
+#ifdef CONFIG_DARWIN
+#define O_DIRECT 040000 /* Direct disk access */
+#define O_NOATIME 01000000 /* Do not set atime */
+#endif
+
+#include "../../tizen/src/debug_ch.h"
+MULTI_DEBUG_CHANNEL(tizen, qemu_9p_test);
+
+int open_fd_hw;
+int total_open_fd;
+static int open_fd_rc;
+
+enum {
+    Oread   = 0x00,
+    Owrite  = 0x01,
+    Ordwr   = 0x02,
+    Oexec   = 0x03,
+    Oexcl   = 0x04,
+    Otrunc  = 0x10,
+    Orexec  = 0x20,
+    Orclose = 0x40,
+    Oappend = 0x80,
+};
+
+static int omode_to_uflags(int8_t mode)
+{
+    int ret = 0;
+
+    switch (mode & 3) {
+    case Oread:
+        ret = O_RDONLY;
+        break;
+    case Ordwr:
+        ret = O_RDWR;
+        break;
+    case Owrite:
+        ret = O_WRONLY;
+        break;
+    case Oexec:
+        ret = O_RDONLY;
+        break;
+    }
+
+    if (mode & Otrunc) {
+        ret |= O_TRUNC;
+    }
+
+    if (mode & Oappend) {
+        ret |= O_APPEND;
+    }
+
+    if (mode & Oexcl) {
+        ret |= O_EXCL;
+    }
+
+    return ret;
+}
+
+struct dotl_openflag_map {
+    int dotl_flag;
+    int open_flag;
+};
+
+static int dotl_to_open_flags(int flags)
+{
+    int i;
+    /*
+     * We have same bits for P9_DOTL_READONLY, P9_DOTL_WRONLY
+     * and P9_DOTL_NOACCESS
+     */
+    int oflags = flags & O_ACCMODE;
+
+    struct dotl_openflag_map dotl_oflag_map[] = {
+        { P9_DOTL_CREATE, O_CREAT },
+        { P9_DOTL_EXCL, O_EXCL },
+        { P9_DOTL_NOCTTY , O_NOCTTY },
+        { P9_DOTL_TRUNC, O_TRUNC },
+        { P9_DOTL_APPEND, O_APPEND },
+        { P9_DOTL_NONBLOCK, O_NONBLOCK } ,
+        { P9_DOTL_DSYNC, O_DSYNC },
+        { P9_DOTL_FASYNC, FASYNC },
+        { P9_DOTL_DIRECT, O_DIRECT },
+        { P9_DOTL_LARGEFILE, O_LARGEFILE },
+        { P9_DOTL_DIRECTORY, O_DIRECTORY },
+        { P9_DOTL_NOFOLLOW, O_NOFOLLOW },
+        { P9_DOTL_NOATIME, O_NOATIME },
+        { P9_DOTL_SYNC, O_SYNC },
+    };
+
+    for (i = 0; i < ARRAY_SIZE(dotl_oflag_map); i++) {
+        if (flags & dotl_oflag_map[i].dotl_flag) {
+            oflags |= dotl_oflag_map[i].open_flag;
+        }
+    }
+
+    return oflags;
+}
+
+void cred_init(FsCred *credp)
+{
+    credp->fc_uid = -1;
+    credp->fc_gid = -1;
+    credp->fc_mode = -1;
+    credp->fc_rdev = -1;
+}
+
+static int get_dotl_openflags(V9fsState *s, int oflags)
+{
+    int flags;
+    /*
+     * Filter the client open flags
+     */
+    flags = dotl_to_open_flags(oflags);
+    flags &= ~(O_NOCTTY | O_ASYNC | O_CREAT);
+    /*
+     * Ignore direct disk access hint until the server supports it.
+     */
+    flags &= ~O_DIRECT;
+
+    return flags;
+}
+
+void v9fs_path_init(V9fsPath *path)
+{
+    path->data = NULL;
+    path->size = 0;
+}
+
+void v9fs_path_free(V9fsPath *path)
+{
+    g_free(path->data);
+    path->data = NULL;
+    path->size = 0;
+}
+
+void v9fs_path_copy(V9fsPath *lhs, V9fsPath *rhs)
+{
+    v9fs_path_free(lhs);
+    lhs->data = g_malloc(rhs->size);
+    memcpy(lhs->data, rhs->data, rhs->size);
+    lhs->size = rhs->size;
+}
+
+int v9fs_name_to_path(V9fsState *s, V9fsPath *dirpath,
+                      const char *name, V9fsPath *path)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    err = s->ops->name_to_path(&s->ctx, dirpath, name, path); // local_name_to_path
+    if (err < 0) {
+        err = -errno;
+    }
+    return err;
+}
+
+/*
+ * Return TRUE if s1 is an ancestor of s2.
+ *
+ * E.g. "a/b" is an ancestor of "a/b/c" but not of "a/bc/d".
+ * As a special case, We treat s1 as ancestor of s2 if they are same!
+ */
+static int v9fs_path_is_ancestor(V9fsPath *s1, V9fsPath *s2)
+{
+    if (!strncmp(s1->data, s2->data, s1->size - 1)) {
+#ifndef CONFIG_WIN32
+        if (s2->data[s1->size - 1] == '\0' || s2->data[s1->size - 1] == '/') {
+#else
+        if (s2->data[s1->size - 1] == '\0' || s2->data[s1->size - 1] == '\\') {
+#endif
+            return 1;
+        }
+    }
+    return 0;
+}
+
+static size_t v9fs_string_size(V9fsString *str)
+{
+    return str->size;
+}
+
+/*
+ * returns 0 if fid got re-opened, 1 if not, < 0 on error */
+static int v9fs_reopen_fid(V9fsPDU *pdu, V9fsFidState *f)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err = 1;
+    if (f->fid_type == P9_FID_FILE) {
+        if (f->fs.fd == -1) {
+            do {
+                err = v9fs_co_open(pdu, f, f->open_flags);
+            } while (err == -EINTR && !pdu->cancelled);
+        }
+    } else if (f->fid_type == P9_FID_DIR) {
+        if (f->fs.dir == NULL) {
+            do {
+                err = v9fs_co_opendir(pdu, f);
+            } while (err == -EINTR && !pdu->cancelled);
+        }
+    }
+    return err;
+}
+
+static V9fsFidState *get_fid(V9fsPDU *pdu, int32_t fid)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    V9fsFidState *f;
+    V9fsState *s = pdu->s;
+
+    for (f = s->fid_list; f; f = f->next) {
+        BUG_ON(f->clunked);
+        if (f->fid == fid) {
+            /*
+             * Update the fid ref upfront so that
+             * we don't get reclaimed when we yield
+             * in open later.
+             */
+            f->ref++;
+            /*
+             * check whether we need to reopen the
+             * file. We might have closed the fd
+             * while trying to free up some file
+             * descriptors.
+             */
+            err = v9fs_reopen_fid(pdu, f);
+            if (err < 0) {
+                ERR("[%d][ >> %s]\n", __LINE__, __func__);
+                f->ref--;
+                return NULL;
+            }
+            /*
+             * Mark the fid as referenced so that the LRU
+             * reclaim won't close the file descriptor
+             */
+            f->flags |= FID_REFERENCED;
+            return f;
+        }
+    }
+    return NULL;
+}
+
+static V9fsFidState *alloc_fid(V9fsState *s, int32_t fid)
+{
+    V9fsFidState *f;
+
+    for (f = s->fid_list; f; f = f->next) {
+        /* If fid is already there return NULL */
+        BUG_ON(f->clunked);
+        if (f->fid == fid) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            return NULL;
+        }
+    }
+    f = g_malloc0(sizeof(V9fsFidState));
+    f->fid = fid;
+    f->fid_type = P9_FID_NONE;
+    f->ref = 1;
+    /*
+     * Mark the fid as referenced so that the LRU
+     * reclaim won't close the file descriptor
+     */
+    f->flags |= FID_REFERENCED;
+    f->next = s->fid_list;
+    s->fid_list = f;
+
+    return f;
+}
+
+#ifndef CONFIG_WIN32
+static int v9fs_xattr_fid_clunk(V9fsPDU *pdu, V9fsFidState *fidp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int retval = 0;
+
+    if (fidp->fs.xattr.copied_len == -1) {
+        /* getxattr/listxattr fid */
+        goto free_value;
+    }
+    /*
+     * if this is fid for setxattr. clunk should
+     * result in setxattr localcall
+     */
+    if (fidp->fs.xattr.len != fidp->fs.xattr.copied_len) {
+        /* clunk after partial write */
+        retval = -EINVAL;
+        goto free_out;
+    }
+    if (fidp->fs.xattr.len) {
+        retval = v9fs_co_lsetxattr(pdu, &fidp->path, &fidp->fs.xattr.name,
+                                   fidp->fs.xattr.value,
+                                   fidp->fs.xattr.len,
+                                   fidp->fs.xattr.flags);
+    } else {
+        retval = v9fs_co_lremovexattr(pdu, &fidp->path, &fidp->fs.xattr.name);
+    }
+free_out:
+    v9fs_string_free(&fidp->fs.xattr.name);
+free_value:
+    if (fidp->fs.xattr.value) {
+        g_free(fidp->fs.xattr.value);
+    }
+    return retval;
+}
+#endif
+
+static int free_fid(V9fsPDU *pdu, V9fsFidState *fidp)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int retval = 0;
+
+    if (fidp->fid_type == P9_FID_FILE) {
+        /* If we reclaimed the fd no need to close */
+        if (fidp->fs.fd != -1) {
+            retval = v9fs_co_close(pdu, &fidp->fs);
+        }
+    } else if (fidp->fid_type == P9_FID_DIR) {
+        if (fidp->fs.dir != NULL) {
+            retval = v9fs_co_closedir(pdu, &fidp->fs);
+        }
+    } else if (fidp->fid_type == P9_FID_XATTR) {
+#ifndef CONFIG_WIN32
+        retval = v9fs_xattr_fid_clunk(pdu, fidp);
+#else
+	retval = -1;
+#endif
+    }
+    v9fs_path_free(&fidp->path);
+    g_free(fidp);
+    return retval;
+}
+
+static int put_fid(V9fsPDU *pdu, V9fsFidState *fidp)
+{
+    BUG_ON(!fidp->ref);
+    fidp->ref--;
+    /*
+     * Don't free the fid if it is in reclaim list
+     */
+    if (!fidp->ref && fidp->clunked) {
+        if (fidp->fid == pdu->s->root_fid) {
+            /*
+             * if the clunked fid is root fid then we
+             * have unmounted the fs on the client side.
+             * delete the migration blocker. Ideally, this
+             * should be hooked to transport close notification
+             */
+            if (pdu->s->migration_blocker) {
+                migrate_del_blocker(pdu->s->migration_blocker);
+                error_free(pdu->s->migration_blocker);
+                pdu->s->migration_blocker = NULL;
+            }
+        }
+        return free_fid(pdu, fidp);
+    }
+    return 0;
+}
+
+static V9fsFidState *clunk_fid(V9fsState *s, int32_t fid)
+{
+    V9fsFidState **fidpp, *fidp;
+
+    for (fidpp = &s->fid_list; *fidpp; fidpp = &(*fidpp)->next) {
+        if ((*fidpp)->fid == fid) {
+            break;
+        }
+    }
+    if (*fidpp == NULL) {
+        return NULL;
+    }
+    fidp = *fidpp;
+    *fidpp = fidp->next;
+    fidp->clunked = 1;
+    return fidp;
+}
+
+void v9fs_reclaim_fd(V9fsPDU *pdu)
+{
+    int reclaim_count = 0;
+    V9fsState *s = pdu->s;
+    V9fsFidState *f, *reclaim_list = NULL;
+
+    for (f = s->fid_list; f; f = f->next) {
+        /*
+         * Unlink fids cannot be reclaimed. Check
+         * for them and skip them. Also skip fids
+         * currently being operated on.
+         */
+        if (f->ref || f->flags & FID_NON_RECLAIMABLE) {
+            continue;
+        }
+        /*
+         * if it is a recently referenced fid
+         * we leave the fid untouched and clear the
+         * reference bit. We come back to it later
+         * in the next iteration. (a simple LRU without
+         * moving list elements around)
+         */
+        if (f->flags & FID_REFERENCED) {
+            f->flags &= ~FID_REFERENCED;
+            continue;
+        }
+        /*
+         * Add fids to reclaim list.
+         */
+        if (f->fid_type == P9_FID_FILE) {
+            if (f->fs.fd != -1) {
+                /*
+                 * Up the reference count so that
+                 * a clunk request won't free this fid
+                 */
+                f->ref++;
+                f->rclm_lst = reclaim_list;
+                reclaim_list = f;
+                f->fs_reclaim.fd = f->fs.fd;
+                f->fs.fd = -1;
+                reclaim_count++;
+            }
+        } else if (f->fid_type == P9_FID_DIR) {
+            if (f->fs.dir != NULL) {
+                /*
+                 * Up the reference count so that
+                 * a clunk request won't free this fid
+                 */
+                f->ref++;
+                f->rclm_lst = reclaim_list;
+                reclaim_list = f;
+                f->fs_reclaim.dir = f->fs.dir;
+                f->fs.dir = NULL;
+                reclaim_count++;
+            }
+        }
+        if (reclaim_count >= open_fd_rc) {
+            break;
+        }
+    }
+    /*
+     * Now close the fid in reclaim list. Free them if they
+     * are already clunked.
+     */
+    while (reclaim_list) {
+        f = reclaim_list;
+        reclaim_list = f->rclm_lst;
+        if (f->fid_type == P9_FID_FILE) {
+            v9fs_co_close(pdu, &f->fs_reclaim);
+        } else if (f->fid_type == P9_FID_DIR) {
+            v9fs_co_closedir(pdu, &f->fs_reclaim);
+        }
+        f->rclm_lst = NULL;
+        /*
+         * Now drop the fid reference, free it
+         * if clunked.
+         */
+        put_fid(pdu, f);
+    }
+}
+
+static int v9fs_mark_fids_unreclaim(V9fsPDU *pdu, V9fsPath *path)
+{
+    TRACE("[%d][ >> %s]\n", __LINE__, __func__);
+    int err;
+    V9fsState *s = pdu->s;
+    V9fsFidState *fidp, head_fid;
+
+    head_fid.next = s->fid_list;
+    for (fidp = s->fid_list; fidp; fidp = fidp->next) {
+        if (fidp->path.size != path->size) {
+            continue;
+        }
+        if (!memcmp(fidp->path.data, path->data, path->size)) {
+            /* Mark the fid non reclaimable. */
+            fidp->flags |= FID_NON_RECLAIMABLE;
+
+            /* reopen the file/dir if already closed */
+            err = v9fs_reopen_fid(pdu, fidp);
+            if (err < 0) {
+                return -1;
+            }
+            /*
+             * Go back to head of fid list because
+             * the list could have got updated when
+             * switched to the worker thread
+             */
+            if (err == 0) {
+                fidp = &head_fid;
+            }
+        }
+    }
+    return 0;
+}
+
+static void virtfs_reset(V9fsPDU *pdu)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    V9fsState *s = pdu->s;
+    V9fsFidState *fidp = NULL;
+
+    /* Free all fids */
+    while (s->fid_list) {
+        fidp = s->fid_list;
+        s->fid_list = fidp->next;
+
+        if (fidp->ref) {
+            fidp->clunked = 1;
+        } else {
+            free_fid(pdu, fidp);
+        }
+    }
+    if (fidp) {
+        /* One or more unclunked fids found... */
+        error_report("9pfs:%s: One or more uncluncked fids "
+                     "found during reset", __func__);
+    }
+    return;
+}
+
+#define P9_QID_TYPE_DIR         0x80
+#define P9_QID_TYPE_SYMLINK     0x02
+
+#define P9_STAT_MODE_DIR        0x80000000
+#define P9_STAT_MODE_APPEND     0x40000000
+#define P9_STAT_MODE_EXCL       0x20000000
+#define P9_STAT_MODE_MOUNT      0x10000000
+#define P9_STAT_MODE_AUTH       0x08000000
+#define P9_STAT_MODE_TMP        0x04000000
+#define P9_STAT_MODE_SYMLINK    0x02000000
+#define P9_STAT_MODE_LINK       0x01000000
+#define P9_STAT_MODE_DEVICE     0x00800000
+#define P9_STAT_MODE_NAMED_PIPE 0x00200000
+#define P9_STAT_MODE_SOCKET     0x00100000
+#define P9_STAT_MODE_SETUID     0x00080000
+#define P9_STAT_MODE_SETGID     0x00040000
+#define P9_STAT_MODE_SETVTX     0x00010000
+
+#define P9_STAT_MODE_TYPE_BITS (P9_STAT_MODE_DIR |          \
+                                P9_STAT_MODE_SYMLINK |      \
+                                P9_STAT_MODE_LINK |         \
+                                P9_STAT_MODE_DEVICE |       \
+                                P9_STAT_MODE_NAMED_PIPE |   \
+                                P9_STAT_MODE_SOCKET)
+
+/* This is the algorithm from ufs in spfs */
+static void stat_to_qid(const struct stat *stbuf, V9fsQID *qidp)
+{
+    size_t size;
+
+    memset(&qidp->path, 0, sizeof(qidp->path));
+    size = MIN(sizeof(stbuf->st_ino), sizeof(qidp->path));
+    memcpy(&qidp->path, &stbuf->st_ino, size);
+    qidp->version = stbuf->st_mtime ^ (stbuf->st_size << 8);
+    qidp->type = 0;
+    if (S_ISDIR(stbuf->st_mode)) {
+        qidp->type |= P9_QID_TYPE_DIR;
+    }
+#ifndef CONFIG_WIN32
+    if (S_ISLNK(stbuf->st_mode)) {
+#else
+    if (((stbuf->st_mode) & S_IFMT) == 0xA000) {
+#endif
+        qidp->type |= P9_QID_TYPE_SYMLINK;
+    }
+}
+
+static int fid_to_qid(V9fsPDU *pdu, V9fsFidState *fidp, V9fsQID *qidp)
+{
+    TRACE("[%d][ >> %s]\n", __LINE__, __func__);
+    struct stat stbuf;
+    int err;
+
+    err = v9fs_co_lstat(pdu, &fidp->path, &stbuf);
+    if (err < 0) {
+        return err;
+    }
+    stat_to_qid(&stbuf, qidp);
+    return 0;
+}
+
+static V9fsPDU *alloc_pdu(V9fsState *s)
+{
+    V9fsPDU *pdu = NULL;
+
+    if (!QLIST_EMPTY(&s->free_list)) {
+        pdu = QLIST_FIRST(&s->free_list);
+        QLIST_REMOVE(pdu, next);
+        QLIST_INSERT_HEAD(&s->active_list, pdu, next);
+    }
+    return pdu;
+}
+
+static void free_pdu(V9fsState *s, V9fsPDU *pdu)
+{
+    if (pdu) {
+        /*
+         * Cancelled pdu are added back to the freelist
+         * by flush request .
+         */
+        if (!pdu->cancelled) {
+            QLIST_REMOVE(pdu, next);
+            QLIST_INSERT_HEAD(&s->free_list, pdu, next);
+        }
+    }
+}
+
+/*
+ * We don't do error checking for pdu_marshal/unmarshal here
+ * because we always expect to have enough space to encode
+ * error details
+ */
+static void complete_pdu(V9fsState *s, V9fsPDU *pdu, ssize_t len)
+{
+    int8_t id = pdu->id + 1; /* Response */
+
+    if (len < 0) {
+        WARN("[%d][ >> %s]\n", __LINE__, __func__);
+        int err = -len;
+        len = 7;
+
+        if (s->proto_version != V9FS_PROTO_2000L) {
+            V9fsString str;
+
+            str.data = strerror(err);
+            str.size = strlen(str.data);
+
+            len += pdu_marshal(pdu, len, "s", &str);
+            id = P9_RERROR;
+        }
+
+        len += pdu_marshal(pdu, len, "d", err);
+
+        if (s->proto_version == V9FS_PROTO_2000L) {
+            id = P9_RLERROR;
+        }
+        trace_v9fs_rerror(pdu->tag, pdu->id, err); /* Trace ERROR */
+    }
+
+    /* fill out the header */
+    pdu_marshal(pdu, 0, "dbw", (int32_t)len, id, pdu->tag);
+
+    /* keep these in sync */
+    pdu->size = len;
+    pdu->id = id;
+
+    /* push onto queue and notify */
+    virtqueue_push(s->vq, &pdu->elem, len);
+
+    /* FIXME: we should batch these completions */
+    virtio_notify(VIRTIO_DEVICE(s), s->vq);
+
+    /* Now wakeup anybody waiting in flush for this request */
+    qemu_co_queue_next(&pdu->complete);
+
+    free_pdu(s, pdu);
+}
+
+#ifndef CONFIG_WIN32
+static mode_t v9mode_to_mode(uint32_t mode, V9fsString *extension)
+{
+    mode_t ret;
+
+    ret = mode & 0777;
+    if (mode & P9_STAT_MODE_DIR) {
+        ret |= S_IFDIR;
+    }
+
+    if (mode & P9_STAT_MODE_SYMLINK) {
+        ret |= S_IFLNK;
+    }
+    if (mode & P9_STAT_MODE_SOCKET) {
+        ret |= S_IFSOCK;
+    }
+    if (mode & P9_STAT_MODE_NAMED_PIPE) {
+        ret |= S_IFIFO;
+    }
+    if (mode & P9_STAT_MODE_DEVICE) {
+        if (extension->size && extension->data[0] == 'c') {
+            ret |= S_IFCHR;
+        } else {
+            ret |= S_IFBLK;
+        }
+    }
+
+    if (!(ret&~0777)) {
+        ret |= S_IFREG;
+    }
+
+    if (mode & P9_STAT_MODE_SETUID) {
+        ret |= S_ISUID;
+    }
+    if (mode & P9_STAT_MODE_SETGID) {
+        ret |= S_ISGID;
+    }
+    if (mode & P9_STAT_MODE_SETVTX) {
+        ret |= S_ISVTX;
+    }
+    return ret;
+}
+#endif
+
+static int donttouch_stat(V9fsStat *stat)
+{
+    if (stat->type == -1 &&
+        stat->dev == -1 &&
+        stat->qid.type == -1 &&
+        stat->qid.version == -1 &&
+        stat->qid.path == -1 &&
+        stat->mode == -1 &&
+        stat->atime == -1 &&
+        stat->mtime == -1 &&
+        stat->length == -1 &&
+        !stat->name.size &&
+        !stat->uid.size &&
+        !stat->gid.size &&
+        !stat->muid.size &&
+        stat->n_uid == -1 &&
+        stat->n_gid == -1 &&
+        stat->n_muid == -1) {
+        return 1;
+    }
+
+    return 0;
+}
+
+static void v9fs_stat_init(V9fsStat *stat)
+{
+    v9fs_string_init(&stat->name);
+    v9fs_string_init(&stat->uid);
+    v9fs_string_init(&stat->gid);
+    v9fs_string_init(&stat->muid);
+    v9fs_string_init(&stat->extension);
+}
+
+static void v9fs_stat_free(V9fsStat *stat)
+{
+    v9fs_string_free(&stat->name);
+    v9fs_string_free(&stat->uid);
+    v9fs_string_free(&stat->gid);
+    v9fs_string_free(&stat->muid);
+    v9fs_string_free(&stat->extension);
+}
+
+static uint32_t stat_to_v9mode(const struct stat *stbuf)
+{
+    uint32_t mode;
+
+    mode = stbuf->st_mode & 0777;
+#ifndef CONFIG_WIN32
+    if (S_ISDIR(stbuf->st_mode)) {
+        mode |= P9_STAT_MODE_DIR;
+    }
+
+    if (S_ISLNK(stbuf->st_mode)) {
+        mode |= P9_STAT_MODE_SYMLINK;
+    }
+
+    if (S_ISSOCK(stbuf->st_mode)) {
+        mode |= P9_STAT_MODE_SOCKET;
+    }
+
+    if (S_ISFIFO(stbuf->st_mode)) {
+        mode |= P9_STAT_MODE_NAMED_PIPE;
+    }
+
+    if (S_ISBLK(stbuf->st_mode) || S_ISCHR(stbuf->st_mode)) {
+        mode |= P9_STAT_MODE_DEVICE;
+    }
+
+    if (stbuf->st_mode & S_ISUID) {
+        mode |= P9_STAT_MODE_SETUID;
+    }
+
+    if (stbuf->st_mode & S_ISGID) {
+        mode |= P9_STAT_MODE_SETGID;
+    }
+
+    if (stbuf->st_mode & S_ISVTX) {
+        mode |= P9_STAT_MODE_SETVTX;
+    }
+#endif
+    return mode;
+}
+
+static int stat_to_v9stat(V9fsPDU *pdu, V9fsPath *name,
+                            const struct stat *stbuf,
+                            V9fsStat *v9stat)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    const char *str;
+
+    memset(v9stat, 0, sizeof(*v9stat));
+
+    stat_to_qid(stbuf, &v9stat->qid);
+    v9stat->mode = stat_to_v9mode(stbuf);
+    v9stat->atime = stbuf->st_atime;
+    v9stat->mtime = stbuf->st_mtime;
+    v9stat->length = stbuf->st_size;
+
+    v9fs_string_null(&v9stat->uid);
+    v9fs_string_null(&v9stat->gid);
+    v9fs_string_null(&v9stat->muid);
+
+    v9stat->n_uid = stbuf->st_uid;
+    v9stat->n_gid = stbuf->st_gid;
+    v9stat->n_muid = 0;
+
+    v9fs_string_null(&v9stat->extension);
+
+    if (v9stat->mode & P9_STAT_MODE_SYMLINK) {
+        err = v9fs_co_readlink(pdu, name, &v9stat->extension);
+        if (err < 0) {
+            return err;
+        }
+    } else if (v9stat->mode & P9_STAT_MODE_DEVICE) {
+        v9fs_string_sprintf(&v9stat->extension, "%c %u %u",
+                S_ISCHR(stbuf->st_mode) ? 'c' : 'b',
+                major(stbuf->st_rdev), minor(stbuf->st_rdev));
+    } else if (S_ISDIR(stbuf->st_mode) || S_ISREG(stbuf->st_mode)) {
+        v9fs_string_sprintf(&v9stat->extension, "%s %lu",
+                "HARDLINKCOUNT", (unsigned long)stbuf->st_nlink);
+    }
+
+    str = strrchr(name->data, '/');
+    if (str) {
+        str += 1;
+    } else {
+        str = name->data;
+    }
+
+    v9fs_string_sprintf(&v9stat->name, "%s", str);
+
+    v9stat->size = 61 +
+        v9fs_string_size(&v9stat->name) +
+        v9fs_string_size(&v9stat->uid) +
+        v9fs_string_size(&v9stat->gid) +
+        v9fs_string_size(&v9stat->muid) +
+        v9fs_string_size(&v9stat->extension);
+    return 0;
+}
+
+#define P9_STATS_MODE          0x00000001ULL
+#define P9_STATS_NLINK         0x00000002ULL
+#define P9_STATS_UID           0x00000004ULL
+#define P9_STATS_GID           0x00000008ULL
+#define P9_STATS_RDEV          0x00000010ULL
+#define P9_STATS_ATIME         0x00000020ULL
+#define P9_STATS_MTIME         0x00000040ULL
+#define P9_STATS_CTIME         0x00000080ULL
+#define P9_STATS_INO           0x00000100ULL
+#define P9_STATS_SIZE          0x00000200ULL
+#define P9_STATS_BLOCKS        0x00000400ULL
+
+#define P9_STATS_BTIME         0x00000800ULL
+#define P9_STATS_GEN           0x00001000ULL
+#define P9_STATS_DATA_VERSION  0x00002000ULL
+
+#define P9_STATS_BASIC         0x000007ffULL /* Mask for fields up to BLOCKS */
+#define P9_STATS_ALL           0x00003fffULL /* Mask for All fields above */
+
+
+static void stat_to_v9stat_dotl(V9fsState *s, const struct stat *stbuf,
+                                V9fsStatDotl *v9lstat)
+{
+    memset(v9lstat, 0, sizeof(*v9lstat));
+
+    v9lstat->st_mode = stbuf->st_mode;
+    v9lstat->st_nlink = stbuf->st_nlink;
+    v9lstat->st_uid = stbuf->st_uid;
+    v9lstat->st_gid = stbuf->st_gid;
+    v9lstat->st_rdev = stbuf->st_rdev;
+    v9lstat->st_size = stbuf->st_size;
+#ifndef CONFIG_WIN32
+    v9lstat->st_blksize = stbuf->st_blksize;
+    v9lstat->st_blocks = stbuf->st_blocks;
+#else
+    v9lstat->st_blksize = hostBytesPerSector;
+    v9lstat->st_blocks = (uint64_t)(v9lstat->st_size / 512
+                            + (v9lstat->st_size % 512 ? 1 : 0)); //round up
+#endif
+#ifdef CONFIG_LINUX
+    v9lstat->st_atime_sec = stbuf->st_atime;
+    v9lstat->st_atime_nsec = stbuf->st_atim.tv_nsec;
+    v9lstat->st_mtime_sec = stbuf->st_mtime;
+    v9lstat->st_mtime_nsec = stbuf->st_mtim.tv_nsec;
+    v9lstat->st_ctime_sec = stbuf->st_ctime;
+    v9lstat->st_ctime_nsec = stbuf->st_ctim.tv_nsec;
+#else // darwin
+#ifndef CONFIG_WIN32
+    v9lstat->st_atime_sec = stbuf->st_atimespec.tv_sec;
+    v9lstat->st_atime_nsec = stbuf->st_atimespec.tv_nsec;
+    v9lstat->st_mtime_sec = stbuf->st_mtimespec.tv_sec;
+    v9lstat->st_mtime_nsec = stbuf->st_mtimespec.tv_nsec;
+    v9lstat->st_ctime_sec = stbuf->st_ctimespec.tv_sec;
+    v9lstat->st_ctime_nsec = stbuf->st_ctimespec.tv_nsec;
+#else
+    v9lstat->st_atime_sec = stbuf->st_atime;
+    v9lstat->st_atime_nsec = 0;
+    v9lstat->st_mtime_sec = stbuf->st_mtime;
+    v9lstat->st_mtime_nsec = 0;
+    v9lstat->st_ctime_sec = stbuf->st_ctime;
+    v9lstat->st_ctime_nsec = 0;
+#endif
+#endif
+
+    /* Currently we only support BASIC fields in stat */
+    v9lstat->st_result_mask = P9_STATS_BASIC;
+
+    stat_to_qid(stbuf, &v9lstat->qid);
+}
+
+static void print_sg(struct iovec *sg, int cnt)
+{
+    int i;
+
+    printf("sg[%d]: {", cnt);
+    for (i = 0; i < cnt; i++) {
+        if (i) {
+            printf(", ");
+        }
+        printf("(%p, %zd)", sg[i].iov_base, sg[i].iov_len);
+    }
+    printf("}\n");
+}
+
+/* Will call this only for path name based fid */
+static void v9fs_fix_path(V9fsPath *dst, V9fsPath *src, int len)
+{
+    V9fsPath str;
+    v9fs_path_init(&str);
+    v9fs_path_copy(&str, dst);
+    v9fs_string_sprintf((V9fsString *)dst, "%s%s", src->data, str.data+len);
+    v9fs_path_free(&str);
+    /* +1 to include terminating NULL */
+    dst->size++;
+}
+
+static inline bool is_ro_export(FsContext *ctx)
+{
+    return ctx->export_flags & V9FS_RDONLY;
+}
+
+static void v9fs_version(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    ssize_t err;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+    V9fsString version;
+    size_t offset = 7;
+
+    v9fs_string_init(&version);
+    err = pdu_unmarshal(pdu, offset, "ds", &s->msize, &version);
+    if (err < 0) {
+        offset = err;
+        goto out;
+    }
+    trace_v9fs_version(pdu->tag, pdu->id, s->msize, version.data);
+
+    virtfs_reset(pdu);
+
+    if (!strcmp(version.data, "9P2000.u")) {
+        s->proto_version = V9FS_PROTO_2000U;
+    } else if (!strcmp(version.data, "9P2000.L")) {
+        s->proto_version = V9FS_PROTO_2000L;
+    } else {
+        v9fs_string_sprintf(&version, "unknown");
+    }
+
+    err = pdu_marshal(pdu, offset, "ds", s->msize, &version);
+    if (err < 0) {
+        offset = err;
+        goto out;
+    }
+    offset += err;
+    trace_v9fs_version_return(pdu->tag, pdu->id, s->msize, version.data);
+out:
+    complete_pdu(s, pdu, offset);
+    v9fs_string_free(&version);
+    return;
+}
+
+static void v9fs_attach(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+    int32_t fid, afid, n_uname;
+    V9fsString uname, aname;
+    V9fsFidState *fidp;
+    size_t offset = 7;
+    V9fsQID qid;
+    ssize_t err;
+
+    v9fs_string_init(&uname);
+    v9fs_string_init(&aname);
+    err = pdu_unmarshal(pdu, offset, "ddssd", &fid,
+                        &afid, &uname, &aname, &n_uname);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_attach(pdu->tag, pdu->id, fid, afid, uname.data, aname.data);
+
+    fidp = alloc_fid(s, fid);
+    if (fidp == NULL) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    fidp->uid = n_uname;
+#ifndef CONFIG_WIN32
+    err = v9fs_co_name_to_path(pdu, NULL, "/", &fidp->path);
+#else
+    err = v9fs_co_name_to_path(pdu, NULL, "\\", &fidp->path);
+#endif
+    if (err < 0) {
+        err = -EINVAL;
+        clunk_fid(s, fid);
+        goto out;
+    }
+    err = fid_to_qid(pdu, fidp, &qid);
+    if (err < 0) {
+        err = -EINVAL;
+        clunk_fid(s, fid);
+        goto out;
+    }
+    err = pdu_marshal(pdu, offset, "Q", &qid);
+    if (err < 0) {
+        clunk_fid(s, fid);
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_attach_return(pdu->tag, pdu->id,
+                             qid.type, qid.version, qid.path);
+    /*
+     * disable migration if we haven't done already.
+     * attach could get called multiple times for the same export.
+     */
+    if (!s->migration_blocker) {
+        s->root_fid = fid;
+        error_set(&s->migration_blocker, QERR_VIRTFS_FEATURE_BLOCKS_MIGRATION,
+                  s->ctx.fs_root ? s->ctx.fs_root : "NULL", s->tag);
+        migrate_add_blocker(s->migration_blocker);
+    }
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&uname);
+    v9fs_string_free(&aname);
+}
+
+static void v9fs_stat(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    V9fsStat v9stat;
+    ssize_t err = 0;
+    size_t offset = 7;
+    struct stat stbuf;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    err = pdu_unmarshal(pdu, offset, "d", &fid);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_stat(pdu->tag, pdu->id, fid);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    err = v9fs_co_lstat(pdu, &fidp->path, &stbuf);
+    if (err < 0) {
+        goto out;
+    }
+    err = stat_to_v9stat(pdu, &fidp->path, &stbuf, &v9stat);
+    if (err < 0) {
+        goto out;
+    }
+    err = pdu_marshal(pdu, offset, "wS", 0, &v9stat);
+    if (err < 0) {
+        v9fs_stat_free(&v9stat);
+        goto out;
+    }
+    trace_v9fs_stat_return(pdu->tag, pdu->id, v9stat.mode,
+                           v9stat.atime, v9stat.mtime, v9stat.length);
+    err += offset;
+    v9fs_stat_free(&v9stat);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+}
+
+static void v9fs_getattr(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    size_t offset = 7;
+    ssize_t retval = 0;
+    struct stat stbuf;
+    V9fsFidState *fidp;
+    uint64_t request_mask;
+    V9fsStatDotl v9stat_dotl;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    retval = pdu_unmarshal(pdu, offset, "dq", &fid, &request_mask);
+    if (retval < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_getattr(pdu->tag, pdu->id, fid, request_mask);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        retval = -ENOENT;
+        goto out_nofid;
+    }
+    /*
+     * Currently we only support BASIC fields in stat, so there is no
+     * need to look at request_mask.
+     */
+    retval = v9fs_co_lstat(pdu, &fidp->path, &stbuf);
+    if (retval < 0) {
+        goto out;
+    }
+    stat_to_v9stat_dotl(s, &stbuf, &v9stat_dotl);
+
+    /*  fill st_gen if requested and supported by underlying fs */
+    if (request_mask & P9_STATS_GEN) {
+        retval = v9fs_co_st_gen(pdu, &fidp->path, stbuf.st_mode, &v9stat_dotl);
+        if (retval < 0) {
+            goto out;
+        }
+        v9stat_dotl.st_result_mask |= P9_STATS_GEN;
+    }
+    retval = pdu_marshal(pdu, offset, "A", &v9stat_dotl);
+    if (retval < 0) {
+        goto out;
+    }
+    retval += offset;
+    trace_v9fs_getattr_return(pdu->tag, pdu->id, v9stat_dotl.st_result_mask,
+                              v9stat_dotl.st_mode, v9stat_dotl.st_uid,
+                              v9stat_dotl.st_gid);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, retval);
+}
+
+/* Attribute flags */
+#define P9_ATTR_MODE       (1 << 0)
+#define P9_ATTR_UID        (1 << 1)
+#define P9_ATTR_GID        (1 << 2)
+#define P9_ATTR_SIZE       (1 << 3)
+#define P9_ATTR_ATIME      (1 << 4)
+#define P9_ATTR_MTIME      (1 << 5)
+#define P9_ATTR_CTIME      (1 << 6)
+#define P9_ATTR_ATIME_SET  (1 << 7)
+#define P9_ATTR_MTIME_SET  (1 << 8)
+
+#define P9_ATTR_MASK    127
+
+static void v9fs_setattr(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err = 0;
+    int32_t fid;
+    V9fsFidState *fidp;
+    size_t offset = 7;
+    V9fsIattr v9iattr;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    err = pdu_unmarshal(pdu, offset, "dI", &fid, &v9iattr);
+    if (err < 0) {
+        goto out_nofid;
+    }
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    if (v9iattr.valid & P9_ATTR_MODE) {
+#ifndef CONFIG_WIN32
+        err = v9fs_co_chmod(pdu, &fidp->path, v9iattr.mode);
+#else
+        err = -EPERM;
+#endif
+        if (err < 0) {
+            goto out;
+        }
+    }
+    if (v9iattr.valid & (P9_ATTR_ATIME | P9_ATTR_MTIME)) {
+        struct timespec times[2];
+        if (v9iattr.valid & P9_ATTR_ATIME) {
+            if (v9iattr.valid & P9_ATTR_ATIME_SET) {
+                times[0].tv_sec = v9iattr.atime_sec;
+                times[0].tv_nsec = v9iattr.atime_nsec;
+            } else {
+                times[0].tv_nsec = UTIME_NOW;
+            }
+        } else {
+            times[0].tv_nsec = UTIME_OMIT;
+        }
+        if (v9iattr.valid & P9_ATTR_MTIME) {
+            if (v9iattr.valid & P9_ATTR_MTIME_SET) {
+                times[1].tv_sec = v9iattr.mtime_sec;
+                times[1].tv_nsec = v9iattr.mtime_nsec;
+            } else {
+                times[1].tv_nsec = UTIME_NOW;
+            }
+        } else {
+            times[1].tv_nsec = UTIME_OMIT;
+        }
+        err = v9fs_co_utimensat(pdu, &fidp->path, times);
+        if (err < 0) {
+            goto out;
+        }
+    }
+    /*
+     * If the only valid entry in iattr is ctime we can call
+     * chown(-1,-1) to update the ctime of the file
+     */
+    if ((v9iattr.valid & (P9_ATTR_UID | P9_ATTR_GID)) ||
+        ((v9iattr.valid & P9_ATTR_CTIME)
+         && !((v9iattr.valid & P9_ATTR_MASK) & ~P9_ATTR_CTIME))) {
+        if (!(v9iattr.valid & P9_ATTR_UID)) {
+            v9iattr.uid = -1;
+        }
+        if (!(v9iattr.valid & P9_ATTR_GID)) {
+            v9iattr.gid = -1;
+        }
+#ifndef CONFIG_WIN32
+        err = v9fs_co_chown(pdu, &fidp->path, v9iattr.uid,
+                            v9iattr.gid);
+#else
+        err = -EPERM;
+#endif
+        if (err < 0) {
+            goto out;
+        }
+    }
+    if (v9iattr.valid & (P9_ATTR_SIZE)) {
+        err = v9fs_co_truncate(pdu, &fidp->path, v9iattr.size);
+        if (err < 0) {
+            goto out;
+        }
+    }
+    err = offset;
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+}
+
+static int v9fs_walk_marshal(V9fsPDU *pdu, uint16_t nwnames, V9fsQID *qids)
+{
+    int i;
+    ssize_t err;
+    size_t offset = 7;
+
+    err = pdu_marshal(pdu, offset, "w", nwnames);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        return err;
+    }
+    offset += err;
+    for (i = 0; i < nwnames; i++) {
+        err = pdu_marshal(pdu, offset, "Q", &qids[i]);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            return err;
+        }
+        offset += err;
+    }
+    return offset;
+}
+
+static void v9fs_walk(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int name_idx;
+    V9fsQID *qids = NULL;
+    int i, err = 0;
+    V9fsPath dpath, path;
+    uint16_t nwnames;
+    struct stat stbuf;
+    size_t offset = 7;
+    int32_t fid, newfid;
+    V9fsString *wnames = NULL;
+    V9fsFidState *fidp;
+    V9fsFidState *newfidp = NULL;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    err = pdu_unmarshal(pdu, offset, "ddw", &fid, &newfid, &nwnames);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        complete_pdu(s, pdu, err);
+        return ;
+    }
+    offset += err;
+
+    trace_v9fs_walk(pdu->tag, pdu->id, fid, newfid, nwnames);
+
+    if (nwnames && nwnames <= P9_MAXWELEM) {
+        wnames = g_malloc0(sizeof(wnames[0]) * nwnames);
+        qids   = g_malloc0(sizeof(qids[0]) * nwnames);
+        for (i = 0; i < nwnames; i++) {
+            err = pdu_unmarshal(pdu, offset, "s", &wnames[i]);
+            if (err < 0) {
+                ERR("[%d][ >> %s]\n", __LINE__, __func__);
+                goto out_nofid;
+            }
+            offset += err;
+        }
+    } else if (nwnames > P9_MAXWELEM) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    v9fs_path_init(&dpath);
+    v9fs_path_init(&path);
+    /*
+     * Both dpath and path initially poin to fidp.
+     * Needed to handle request with nwnames == 0
+     */
+    v9fs_path_copy(&dpath, &fidp->path);
+    v9fs_path_copy(&path, &fidp->path);
+    for (name_idx = 0; name_idx < nwnames; name_idx++) {
+        err = v9fs_co_name_to_path(pdu, &dpath, wnames[name_idx].data, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_lstat(pdu, &path, &stbuf);
+        if (err < 0) {
+            goto out;
+        }
+        stat_to_qid(&stbuf, &qids[name_idx]);
+        v9fs_path_copy(&dpath, &path);
+    }
+    if (fid == newfid) {
+        BUG_ON(fidp->fid_type != P9_FID_NONE);
+        WARN("[%d][ >> %s]\n", __LINE__, __func__);
+        v9fs_path_copy(&fidp->path, &path);
+    } else {
+        newfidp = alloc_fid(s, newfid);
+        if (newfidp == NULL) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            err = -EINVAL;
+            goto out;
+        }
+        newfidp->uid = fidp->uid;
+        v9fs_path_copy(&newfidp->path, &path);
+    }
+    err = v9fs_walk_marshal(pdu, nwnames, qids);
+    trace_v9fs_walk_return(pdu->tag, pdu->id, nwnames, qids);
+out:
+    put_fid(pdu, fidp);
+    if (newfidp) {
+        put_fid(pdu, newfidp);
+    }
+    v9fs_path_free(&dpath);
+    v9fs_path_free(&path);
+out_nofid:
+    complete_pdu(s, pdu, err);
+    if (nwnames && nwnames <= P9_MAXWELEM) {
+        for (name_idx = 0; name_idx < nwnames; name_idx++) {
+            v9fs_string_free(&wnames[name_idx]);
+        }
+        g_free(wnames);
+        g_free(qids);
+    }
+    return;
+}
+
+static int32_t get_iounit(V9fsPDU *pdu, V9fsPath *path)
+{
+    struct statfs stbuf;
+    int32_t iounit = 0;
+    V9fsState *s = pdu->s;
+
+    /*
+     * iounit should be multiples of f_bsize (host filesystem block size
+     * and as well as less than (client msize - P9_IOHDRSZ))
+     */
+    if (!v9fs_co_statfs(pdu, path, &stbuf)) {
+        iounit = stbuf.f_bsize;
+        iounit *= (s->msize - P9_IOHDRSZ)/stbuf.f_bsize;
+    }
+    if (!iounit) {
+        iounit = s->msize - P9_IOHDRSZ;
+    }
+    return iounit;
+}
+
+static void v9fs_open(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int flags;
+    int32_t fid;
+    int32_t mode;
+    V9fsQID qid;
+    int iounit = 0;
+    ssize_t err = 0;
+    size_t offset = 7;
+    struct stat stbuf;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    if (s->proto_version == V9FS_PROTO_2000L) {
+        err = pdu_unmarshal(pdu, offset, "dd", &fid, &mode);
+    } else {
+        uint8_t modebyte;
+        err = pdu_unmarshal(pdu, offset, "db", &fid, &modebyte);
+        mode = modebyte;
+    }
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out_nofid;
+    }
+    trace_v9fs_open(pdu->tag, pdu->id, fid, mode);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    BUG_ON(fidp->fid_type != P9_FID_NONE);
+
+    err = v9fs_co_lstat(pdu, &fidp->path, &stbuf);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out;
+    }
+    stat_to_qid(&stbuf, &qid);
+    if (S_ISDIR(stbuf.st_mode)) {
+        err = v9fs_co_opendir(pdu, fidp);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        fidp->fid_type = P9_FID_DIR;
+        err = pdu_marshal(pdu, offset, "Qd", &qid, 0);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err += offset;
+    } else {
+        if (s->proto_version == V9FS_PROTO_2000L) {
+            flags = get_dotl_openflags(s, mode);
+        } else {
+            flags = omode_to_uflags(mode);
+        }
+        if (is_ro_export(&s->ctx)) {
+            if (mode & O_WRONLY || mode & O_RDWR ||
+                mode & O_APPEND || mode & O_TRUNC) {
+                ERR("[%d][ >> %s]\n", __LINE__, __func__);
+                err = -EROFS;
+                goto out;
+            }
+        }
+        err = v9fs_co_open(pdu, fidp, flags);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        fidp->fid_type = P9_FID_FILE;
+        fidp->open_flags = flags;
+        if (flags & O_EXCL) {
+            /*
+             * We let the host file system do O_EXCL check
+             * We should not reclaim such fd
+             */
+            fidp->flags |= FID_NON_RECLAIMABLE;
+        }
+        iounit = get_iounit(pdu, &fidp->path);
+        err = pdu_marshal(pdu, offset, "Qd", &qid, iounit);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err += offset;
+    }
+    trace_v9fs_open_return(pdu->tag, pdu->id,
+                           qid.type, qid.version, qid.path, iounit);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+}
+
+static void v9fs_lcreate(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t dfid, flags, mode;
+    gid_t gid;
+    ssize_t err = 0;
+    ssize_t offset = 7;
+    V9fsString name;
+    V9fsFidState *fidp;
+    struct stat stbuf;
+    V9fsQID qid;
+    int32_t iounit;
+    V9fsPDU *pdu = opaque;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dsddd", &dfid,
+                        &name, &flags, &mode, &gid);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out_nofid;
+    }
+    trace_v9fs_lcreate(pdu->tag, pdu->id, dfid, flags, mode, gid);
+
+    fidp = get_fid(pdu, dfid);
+    if (fidp == NULL) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -ENOENT;
+        goto out_nofid;
+    }
+
+    flags = get_dotl_openflags(pdu->s, flags);
+    err = v9fs_co_open2(pdu, fidp, &name, gid,
+                        flags | O_CREAT, mode, &stbuf);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out;
+    }
+    fidp->fid_type = P9_FID_FILE;
+    fidp->open_flags = flags;
+    if (flags & O_EXCL) {
+        /*
+         * We let the host file system do O_EXCL check
+         * We should not reclaim such fd
+         */
+        fidp->flags |= FID_NON_RECLAIMABLE;
+    }
+    iounit =  get_iounit(pdu, &fidp->path);
+    stat_to_qid(&stbuf, &qid);
+    err = pdu_marshal(pdu, offset, "Qd", &qid, iounit);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_lcreate_return(pdu->tag, pdu->id,
+                              qid.type, qid.version, qid.path, iounit);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(pdu->s, pdu, err);
+    v9fs_string_free(&name);
+}
+
+static void v9fs_fsync(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err;
+    int32_t fid;
+    int datasync;
+    size_t offset = 7;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    err = pdu_unmarshal(pdu, offset, "dd", &fid, &datasync);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out_nofid;
+    }
+    trace_v9fs_fsync(pdu->tag, pdu->id, fid, datasync);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out_nofid;
+    }
+    err = v9fs_co_fsync(pdu, fidp, datasync);
+    if (!err) {
+        err = offset;
+    }
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+}
+
+static void v9fs_clunk(void *opaque)
+{
+    int err;
+    int32_t fid;
+    size_t offset = 7;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    err = pdu_unmarshal(pdu, offset, "d", &fid);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_clunk(pdu->tag, pdu->id, fid);
+
+    fidp = clunk_fid(s, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    /*
+     * Bump the ref so that put_fid will
+     * free the fid.
+     */
+    fidp->ref++;
+    err = put_fid(pdu, fidp);
+    if (!err) {
+        err = offset;
+    }
+out_nofid:
+    complete_pdu(s, pdu, err);
+}
+
+#ifndef CONFIG_WIN32
+static int v9fs_xattr_read(V9fsState *s, V9fsPDU *pdu, V9fsFidState *fidp,
+                           uint64_t off, uint32_t max_count)
+{
+    ssize_t err;
+    size_t offset = 7;
+    int read_count;
+    int64_t xattr_len;
+
+    xattr_len = fidp->fs.xattr.len;
+    read_count = xattr_len - off;
+    if (read_count > max_count) {
+        read_count = max_count;
+    } else if (read_count < 0) {
+        /*
+         * read beyond XATTR value
+         */
+        read_count = 0;
+    }
+    err = pdu_marshal(pdu, offset, "d", read_count);
+    if (err < 0) {
+        return err;
+    }
+    offset += err;
+    err = v9fs_pack(pdu->elem.in_sg, pdu->elem.in_num, offset,
+                    ((char *)fidp->fs.xattr.value) + off,
+                    read_count);
+    if (err < 0) {
+        return err;
+    }
+    offset += err;
+    return offset;
+}
+#endif
+
+static int v9fs_do_readdir_with_stat(V9fsPDU *pdu,
+                                     V9fsFidState *fidp, uint32_t max_count)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    V9fsPath path;
+    V9fsStat v9stat;
+    int len, err = 0;
+    int32_t count = 0;
+    struct stat stbuf;
+    off_t saved_dir_pos;
+    struct dirent *dent, *result;
+
+    /* save the directory position */
+    saved_dir_pos = v9fs_co_telldir(pdu, fidp);
+    if (saved_dir_pos < 0) {
+        return saved_dir_pos;
+    }
+
+    dent = g_malloc(sizeof(struct dirent));
+
+    while (1) {
+        v9fs_path_init(&path);
+        err = v9fs_co_readdir_r(pdu, fidp, dent, &result);
+        if (err || !result) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            break;
+        }
+        err = v9fs_co_name_to_path(pdu, &fidp->path, dent->d_name, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_lstat(pdu, &path, &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = stat_to_v9stat(pdu, &path, &stbuf, &v9stat);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        /* 11 = 7 + 4 (7 = start offset, 4 = space for storing count) */
+        len = pdu_marshal(pdu, 11 + count, "S", &v9stat);
+        if ((len != (v9stat.size + 2)) || ((count + len) > max_count)) {
+            /* Ran out of buffer. Set dir back to old position and return */
+            v9fs_co_seekdir(pdu, fidp, saved_dir_pos);
+            v9fs_stat_free(&v9stat);
+            v9fs_path_free(&path);
+            g_free(dent);
+            return count;
+        }
+        count += len;
+        v9fs_stat_free(&v9stat);
+        v9fs_path_free(&path);
+#ifdef CONFIG_LINUX
+        saved_dir_pos = dent->d_off;
+#else
+        saved_dir_pos = v9fs_co_telldir(pdu, fidp);
+#endif
+    }
+out:
+    g_free(dent);
+    v9fs_path_free(&path);
+    if (err < 0) {
+        return err;
+    }
+    return count;
+}
+
+/*
+ * Create a QEMUIOVector for a sub-region of PDU iovecs
+ *
+ * @qiov:       uninitialized QEMUIOVector
+ * @skip:       number of bytes to skip from beginning of PDU
+ * @size:       number of bytes to include
+ * @is_write:   true - write, false - read
+ *
+ * The resulting QEMUIOVector has heap-allocated iovecs and must be cleaned up
+ * with qemu_iovec_destroy().
+ */
+static void v9fs_init_qiov_from_pdu(QEMUIOVector *qiov, V9fsPDU *pdu,
+                                    size_t skip, size_t size,
+                                    bool is_write)
+{
+    QEMUIOVector elem;
+    struct iovec *iov;
+    unsigned int niov;
+
+    if (is_write) {
+        iov = pdu->elem.out_sg;
+        niov = pdu->elem.out_num;
+    } else {
+        iov = pdu->elem.in_sg;
+        niov = pdu->elem.in_num;
+    }
+
+    qemu_iovec_init_external(&elem, iov, niov);
+    qemu_iovec_init(qiov, niov);
+    qemu_iovec_concat(qiov, &elem, skip, size);
+}
+
+static void v9fs_read(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    uint64_t off;
+    ssize_t err = 0;
+    int32_t count = 0;
+    size_t offset = 7;
+    uint32_t max_count;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    err = pdu_unmarshal(pdu, offset, "dqd", &fid, &off, &max_count);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out_nofid;
+    }
+    trace_v9fs_read(pdu->tag, pdu->id, fid, off, max_count);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    if (fidp->fid_type == P9_FID_DIR) {
+
+        if (off == 0) {
+            v9fs_co_rewinddir(pdu, fidp);
+        }
+        count = v9fs_do_readdir_with_stat(pdu, fidp, max_count);
+        if (count < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            err = count;
+            goto out;
+        }
+        err = pdu_marshal(pdu, offset, "d", count);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err += offset + count;
+    } else if (fidp->fid_type == P9_FID_FILE) {
+        QEMUIOVector qiov_full;
+        QEMUIOVector qiov;
+        int32_t len;
+
+        v9fs_init_qiov_from_pdu(&qiov_full, pdu, offset + 4, max_count, false);
+        qemu_iovec_init(&qiov, qiov_full.niov);
+        do {
+            qemu_iovec_reset(&qiov);
+            qemu_iovec_concat(&qiov, &qiov_full, count, qiov_full.size - count);
+            if (0) {
+                print_sg(qiov.iov, qiov.niov);
+            }
+            /* Loop in case of EINTR */
+            do {
+                len = v9fs_co_preadv(pdu, fidp, qiov.iov, qiov.niov, off);
+                if (len >= 0) {
+                    off   += len;
+                    count += len;
+                }
+            } while (len == -EINTR && !pdu->cancelled);
+            if (len < 0) {
+                /* IO error return the error */
+                ERR("[%d][ >> %s]\n", __LINE__, __func__);
+                err = len;
+                goto out;
+            }
+        } while (count < max_count && len > 0);
+        err = pdu_marshal(pdu, offset, "d", count);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err += offset + count;
+        qemu_iovec_destroy(&qiov);
+        qemu_iovec_destroy(&qiov_full);
+#ifndef CONFIG_WIN32
+    } else if (fidp->fid_type == P9_FID_XATTR) {
+        err = v9fs_xattr_read(s, pdu, fidp, off, max_count);
+#endif
+    } else {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -EINVAL;
+    }
+    trace_v9fs_read_return(pdu->tag, pdu->id, count, err);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+}
+
+static size_t v9fs_readdir_data_size(V9fsString *name)
+{
+    /*
+     * Size of each dirent on the wire: size of qid (13) + size of offset (8)
+     * size of type (1) + size of name.size (2) + strlen(name.data)
+     */
+    return 24 + v9fs_string_size(name);
+}
+
+static int v9fs_do_readdir(V9fsPDU *pdu,
+                           V9fsFidState *fidp, int32_t max_count)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    size_t size;
+    V9fsQID qid;
+    V9fsString name;
+    int len, err = 0;
+    int32_t count = 0;
+    off_t saved_dir_pos;
+    struct dirent *dent, *result;
+#ifndef CONFIG_LINUX
+    uint64_t d_offset = 0;
+#endif
+
+    /* save the directory position */
+    saved_dir_pos = v9fs_co_telldir(pdu, fidp);
+    if (saved_dir_pos < 0) {
+        return saved_dir_pos;
+    }
+
+    dent = g_malloc(sizeof(struct dirent));
+
+    while (1) {
+        err = v9fs_co_readdir_r(pdu, fidp, dent, &result);
+        dent = result;
+        if (err) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            break;
+        }
+
+        if (!result) {
+            TRACE("[%d][ >> %s] v9fs_co_readdir_r has no result.\n", __LINE__, __func__);
+            break;
+        }
+
+        v9fs_string_init(&name);
+        v9fs_string_sprintf(&name, "%s", dent->d_name);
+        if ((count + v9fs_readdir_data_size(&name)) > max_count) {
+            /* Ran out of buffer. Set dir back to old position and return */
+            v9fs_co_seekdir(pdu, fidp, saved_dir_pos);
+            v9fs_string_free(&name);
+            g_free(dent);
+            return count;
+        }
+        /*
+         * Fill up just the path field of qid because the client uses
+         * only that. To fill the entire qid structure we will have
+         * to stat each dirent found, which is expensive
+         */
+        size = MIN(sizeof(dent->d_ino), sizeof(qid.path));
+        memcpy(&qid.path, &dent->d_ino, size);
+        /* Fill the other fields with dummy values */
+        qid.type = 0;
+        qid.version = 0;
+
+        /* 11 = 7 + 4 (7 = start offset, 4 = space for storing count) */
+#ifdef CONFIG_LINUX
+        len = pdu_marshal(pdu, 11 + count, "Qqbs",
+                          &qid, dent->d_off,
+                          dent->d_type, &name);
+#else
+        d_offset = v9fs_co_telldir(pdu, fidp);
+        len = pdu_marshal(pdu, 11 + count, "Qqbs",
+                          &qid, d_offset,
+                          dent->d_type, &name);
+#endif
+        if (len < 0) {
+            v9fs_co_seekdir(pdu, fidp, saved_dir_pos);
+            v9fs_string_free(&name);
+            g_free(dent);
+            return len;
+        }
+        count += len;
+        v9fs_string_free(&name);
+#ifdef CONFIG_LINUX
+        saved_dir_pos = dent->d_off;
+#else
+        saved_dir_pos = d_offset;
+#endif
+    }
+    g_free(dent);
+    if (err < 0) {
+        return err;
+    }
+    return count;
+}
+
+static void v9fs_readdir(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    V9fsFidState *fidp;
+    ssize_t retval = 0;
+    size_t offset = 7;
+    uint64_t initial_offset;
+    int32_t count;
+    uint32_t max_count;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    retval = pdu_unmarshal(pdu, offset, "dqd", &fid,
+                           &initial_offset, &max_count);
+    if (retval < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out_nofid;
+    }
+    trace_v9fs_readdir(pdu->tag, pdu->id, fid, initial_offset, max_count);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        retval = -EINVAL;
+        goto out_nofid;
+    }
+    if (!fidp->fs.dir) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        retval = -EINVAL;
+        goto out;
+    }
+    if (initial_offset == 0) {
+        v9fs_co_rewinddir(pdu, fidp);
+    } else {
+        v9fs_co_seekdir(pdu, fidp, initial_offset);
+    }
+    count = v9fs_do_readdir(pdu, fidp, max_count);
+    if (count < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        retval = count;
+        goto out;
+    }
+    retval = pdu_marshal(pdu, offset, "d", count);
+    if (retval < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out;
+    }
+    retval += count + offset;
+    trace_v9fs_readdir_return(pdu->tag, pdu->id, count, retval);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, retval);
+}
+
+#ifndef CONFIG_WIN32
+static int v9fs_xattr_write(V9fsState *s, V9fsPDU *pdu, V9fsFidState *fidp,
+                            uint64_t off, uint32_t count,
+                            struct iovec *sg, int cnt)
+{
+    int i, to_copy;
+    ssize_t err = 0;
+    int write_count;
+    int64_t xattr_len;
+    size_t offset = 7;
+
+
+    xattr_len = fidp->fs.xattr.len;
+    write_count = xattr_len - off;
+    if (write_count > count) {
+        write_count = count;
+    } else if (write_count < 0) {
+        /*
+         * write beyond XATTR value len specified in
+         * xattrcreate
+         */
+        err = -ENOSPC;
+        goto out;
+    }
+    err = pdu_marshal(pdu, offset, "d", write_count);
+    if (err < 0) {
+        return err;
+    }
+    err += offset;
+    fidp->fs.xattr.copied_len += write_count;
+    /*
+     * Now copy the content from sg list
+     */
+    for (i = 0; i < cnt; i++) {
+        if (write_count > sg[i].iov_len) {
+            to_copy = sg[i].iov_len;
+        } else {
+            to_copy = write_count;
+        }
+        memcpy((char *)fidp->fs.xattr.value + off, sg[i].iov_base, to_copy);
+        /* updating vs->off since we are not using below */
+        off += to_copy;
+        write_count -= to_copy;
+    }
+out:
+    return err;
+}
+#endif
+static void v9fs_write(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    ssize_t err;
+    int32_t fid;
+    uint64_t off;
+    uint32_t count;
+    int32_t len = 0;
+    int32_t total = 0;
+    size_t offset = 7;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+    QEMUIOVector qiov_full;
+    QEMUIOVector qiov;
+
+    err = pdu_unmarshal(pdu, offset, "dqd", &fid, &off, &count);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        return complete_pdu(s, pdu, err);
+    }
+    offset += err;
+    v9fs_init_qiov_from_pdu(&qiov_full, pdu, offset, count, true);
+    trace_v9fs_write(pdu->tag, pdu->id, fid, off, count, qiov_full.niov);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    if (fidp->fid_type == P9_FID_FILE) {
+        if (fidp->fs.fd == -1) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            err = -EINVAL;
+            goto out;
+        }
+    } else if (fidp->fid_type == P9_FID_XATTR) {
+        /*
+         * setxattr operation
+         */
+#ifndef CONFIG_WIN32
+        err = v9fs_xattr_write(s, pdu, fidp, off, count,
+                               qiov_full.iov, qiov_full.niov);
+#endif
+        goto out;
+    } else {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -EINVAL;
+        goto out;
+    }
+    qemu_iovec_init(&qiov, qiov_full.niov);
+    do {
+        qemu_iovec_reset(&qiov);
+        qemu_iovec_concat(&qiov, &qiov_full, total, qiov_full.size - total);
+        if (0) {
+            print_sg(qiov.iov, qiov.niov);
+        }
+        /* Loop in case of EINTR */
+        do {
+            len = v9fs_co_pwritev(pdu, fidp, qiov.iov, qiov.niov, off);
+            if (len >= 0) {
+                off   += len;
+                total += len;
+            }
+        } while (len == -EINTR && !pdu->cancelled);
+        if (len < 0) {
+            /* IO error return the error */
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            err = len;
+            goto out_qiov;
+        }
+    } while (total < count && len > 0);
+
+    offset = 7;
+    err = pdu_marshal(pdu, offset, "d", total);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_write_return(pdu->tag, pdu->id, total, err);
+out_qiov:
+    qemu_iovec_destroy(&qiov);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    qemu_iovec_destroy(&qiov_full);
+    complete_pdu(s, pdu, err);
+}
+
+static void v9fs_create(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    int err = 0;
+    size_t offset = 7;
+    V9fsFidState *fidp;
+    V9fsQID qid;
+    int32_t perm;
+    int8_t mode;
+    V9fsPath path;
+    struct stat stbuf;
+    V9fsString name;
+    V9fsString extension;
+    int iounit;
+    V9fsPDU *pdu = opaque;
+
+    v9fs_path_init(&path);
+    v9fs_string_init(&name);
+    v9fs_string_init(&extension);
+    err = pdu_unmarshal(pdu, offset, "dsdbs", &fid, &name,
+                        &perm, &mode, &extension);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out_nofid;
+    }
+    trace_v9fs_create(pdu->tag, pdu->id, fid, name.data, perm, mode);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    if (perm & P9_STAT_MODE_DIR) {
+        err = v9fs_co_mkdir(pdu, fidp, &name, perm & 0777,
+                            fidp->uid, -1, &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        v9fs_path_copy(&fidp->path, &path);
+        err = v9fs_co_opendir(pdu, fidp);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        fidp->fid_type = P9_FID_DIR;
+#ifndef CONFIG_WIN32
+    } else if (perm & P9_STAT_MODE_SYMLINK) {
+        err = v9fs_co_symlink(pdu, fidp, &name,
+                              extension.data, -1 , &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        v9fs_path_copy(&fidp->path, &path);
+    } else if (perm & P9_STAT_MODE_LINK) {
+        int32_t ofid = atoi(extension.data);
+        V9fsFidState *ofidp = get_fid(pdu, ofid);
+        if (ofidp == NULL) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            err = -EINVAL;
+            goto out;
+        }
+        err = v9fs_co_link(pdu, ofidp, fidp, &name);
+        put_fid(pdu, ofidp);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            fidp->fid_type = P9_FID_NONE;
+            goto out;
+        }
+        v9fs_path_copy(&fidp->path, &path);
+        err = v9fs_co_lstat(pdu, &fidp->path, &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            fidp->fid_type = P9_FID_NONE;
+            goto out;
+        }
+    } else if (perm & P9_STAT_MODE_DEVICE) {
+        char ctype;
+        uint32_t major, minor;
+        mode_t nmode = 0;
+
+        if (sscanf(extension.data, "%c %u %u", &ctype, &major, &minor) != 3) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            err = -errno;
+            goto out;
+        }
+
+        switch (ctype) {
+        case 'c':
+            nmode = S_IFCHR;
+            break;
+        case 'b':
+            nmode = S_IFBLK;
+            break;
+        default:
+            err = -EIO;
+            goto out;
+        }
+
+        nmode |= perm & 0777;
+        err = v9fs_co_mknod(pdu, fidp, &name, fidp->uid, -1,
+                            makedev(major, minor), nmode, &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        v9fs_path_copy(&fidp->path, &path);
+    } else if (perm & P9_STAT_MODE_NAMED_PIPE) {
+        err = v9fs_co_mknod(pdu, fidp, &name, fidp->uid, -1,
+                            0, S_IFIFO | (perm & 0777), &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        v9fs_path_copy(&fidp->path, &path);
+    } else if (perm & P9_STAT_MODE_SOCKET) {
+        err = v9fs_co_mknod(pdu, fidp, &name, fidp->uid, -1,
+                            0, S_IFSOCK | (perm & 0777), &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        err = v9fs_co_name_to_path(pdu, &fidp->path, name.data, &path);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        v9fs_path_copy(&fidp->path, &path);
+#endif
+    } else {
+        err = v9fs_co_open2(pdu, fidp, &name, -1,
+                            omode_to_uflags(mode)|O_CREAT, perm, &stbuf);
+        if (err < 0) {
+            ERR("[%d][ >> %s]\n", __LINE__, __func__);
+            goto out;
+        }
+        fidp->fid_type = P9_FID_FILE;
+        fidp->open_flags = omode_to_uflags(mode);
+        if (fidp->open_flags & O_EXCL) {
+            /*
+             * We let the host file system do O_EXCL check
+             * We should not reclaim such fd
+             */
+            fidp->flags |= FID_NON_RECLAIMABLE;
+        }
+    }
+    iounit = get_iounit(pdu, &fidp->path);
+    stat_to_qid(&stbuf, &qid);
+    err = pdu_marshal(pdu, offset, "Qd", &qid, iounit);
+    if (err < 0) {
+        ERR("[%d][ >> %s]\n", __LINE__, __func__);
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_create_return(pdu->tag, pdu->id,
+                             qid.type, qid.version, qid.path, iounit);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+   complete_pdu(pdu->s, pdu, err);
+   v9fs_string_free(&name);
+   v9fs_string_free(&extension);
+   v9fs_path_free(&path);
+}
+
+static void v9fs_symlink(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    V9fsPDU *pdu = opaque;
+    V9fsString name;
+    V9fsString symname;
+    V9fsFidState *dfidp;
+    V9fsQID qid;
+    struct stat stbuf;
+    int32_t dfid;
+    int err = 0;
+    gid_t gid;
+    size_t offset = 7;
+
+    v9fs_string_init(&name);
+    v9fs_string_init(&symname);
+    err = pdu_unmarshal(pdu, offset, "dssd", &dfid, &name, &symname, &gid);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_symlink(pdu->tag, pdu->id, dfid, name.data, symname.data, gid);
+
+    dfidp = get_fid(pdu, dfid);
+    if (dfidp == NULL) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+#ifndef CONFIG_WIN32
+    err = v9fs_co_symlink(pdu, dfidp, &name, symname.data, gid, &stbuf);
+#else
+    err = -EPERM;
+#endif
+    if (err < 0) {
+        goto out;
+    }
+    stat_to_qid(&stbuf, &qid);
+    err =  pdu_marshal(pdu, offset, "Q", &qid);
+    if (err < 0) {
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_symlink_return(pdu->tag, pdu->id,
+                              qid.type, qid.version, qid.path);
+out:
+    put_fid(pdu, dfidp);
+out_nofid:
+    complete_pdu(pdu->s, pdu, err);
+    v9fs_string_free(&name);
+    v9fs_string_free(&symname);
+}
+
+static void v9fs_flush(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    ssize_t err;
+    int16_t tag;
+    size_t offset = 7;
+    V9fsPDU *cancel_pdu;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    err = pdu_unmarshal(pdu, offset, "w", &tag);
+    if (err < 0) {
+        complete_pdu(s, pdu, err);
+        return;
+    }
+    trace_v9fs_flush(pdu->tag, pdu->id, tag);
+
+    QLIST_FOREACH(cancel_pdu, &s->active_list, next) {
+        if (cancel_pdu->tag == tag) {
+            break;
+        }
+    }
+    if (cancel_pdu) {
+        cancel_pdu->cancelled = 1;
+        /*
+         * Wait for pdu to complete.
+         */
+        qemu_co_queue_wait(&cancel_pdu->complete);
+        cancel_pdu->cancelled = 0;
+        free_pdu(pdu->s, cancel_pdu);
+    }
+    complete_pdu(s, pdu, 7);
+    return;
+}
+
+static void v9fs_link(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+    int32_t dfid, oldfid;
+    V9fsFidState *dfidp, *oldfidp;
+    V9fsString name;
+    size_t offset = 7;
+    int err = 0;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dds", &dfid, &oldfid, &name);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_link(pdu->tag, pdu->id, dfid, oldfid, name.data);
+
+    dfidp = get_fid(pdu, dfid);
+    if (dfidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+
+    oldfidp = get_fid(pdu, oldfid);
+    if (oldfidp == NULL) {
+        err = -ENOENT;
+        goto out;
+    }
+    err = v9fs_co_link(pdu, oldfidp, dfidp, &name);
+    if (!err) {
+        err = offset;
+    }
+out:
+    put_fid(pdu, dfidp);
+out_nofid:
+    v9fs_string_free(&name);
+    complete_pdu(s, pdu, err);
+}
+
+/* Only works with path name based fid */
+static void v9fs_remove(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    int err = 0;
+    size_t offset = 7;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+
+    err = pdu_unmarshal(pdu, offset, "d", &fid);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_remove(pdu->tag, pdu->id, fid);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    /* if fs driver is not path based, return EOPNOTSUPP */
+    if (!(pdu->s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT)) {
+        err = -EOPNOTSUPP;
+        goto out_err;
+    }
+    /*
+     * IF the file is unlinked, we cannot reopen
+     * the file later. So don't reclaim fd
+     */
+    err = v9fs_mark_fids_unreclaim(pdu, &fidp->path);
+    if (err < 0) {
+        goto out_err;
+    }
+    err = v9fs_co_remove(pdu, &fidp->path);
+    if (!err) {
+        err = offset;
+    }
+out_err:
+    /* For TREMOVE we need to clunk the fid even on failed remove */
+    clunk_fid(pdu->s, fidp->fid);
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(pdu->s, pdu, err);
+}
+
+static void v9fs_unlinkat(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err = 0;
+    V9fsString name;
+    int32_t dfid, flags;
+    size_t offset = 7;
+    V9fsPath path;
+    V9fsFidState *dfidp;
+    V9fsPDU *pdu = opaque;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dsd", &dfid, &name, &flags);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    dfidp = get_fid(pdu, dfid);
+    if (dfidp == NULL) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    /*
+     * IF the file is unlinked, we cannot reopen
+     * the file later. So don't reclaim fd
+     */
+    v9fs_path_init(&path);
+    err = v9fs_co_name_to_path(pdu, &dfidp->path, name.data, &path);
+    if (err < 0) {
+        goto out_err;
+    }
+    err = v9fs_mark_fids_unreclaim(pdu, &path);
+    if (err < 0) {
+        goto out_err;
+    }
+    err = v9fs_co_unlinkat(pdu, &dfidp->path, &name, flags);
+    if (!err) {
+        err = offset;
+    }
+out_err:
+    put_fid(pdu, dfidp);
+    v9fs_path_free(&path);
+out_nofid:
+    complete_pdu(pdu->s, pdu, err);
+    v9fs_string_free(&name);
+}
+
+/* Only works with path name based fid */
+static int v9fs_complete_rename(V9fsPDU *pdu, V9fsFidState *fidp,
+                                int32_t newdirfid, V9fsString *name)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    char *end;
+    int err = 0;
+    V9fsPath new_path;
+    V9fsFidState *tfidp;
+    V9fsState *s = pdu->s;
+    V9fsFidState *dirfidp = NULL;
+    char *old_name, *new_name;
+
+    v9fs_path_init(&new_path);
+    if (newdirfid != -1) {
+        dirfidp = get_fid(pdu, newdirfid);
+        if (dirfidp == NULL) {
+            err = -ENOENT;
+            goto out_nofid;
+        }
+        BUG_ON(dirfidp->fid_type != P9_FID_NONE);
+        v9fs_co_name_to_path(pdu, &dirfidp->path, name->data, &new_path);
+    } else {
+        old_name = fidp->path.data;
+        end = strrchr(old_name, '/');
+        if (end) {
+            end++;
+        } else {
+            end = old_name;
+        }
+        new_name = g_malloc0(end - old_name + name->size + 1);
+        strncat(new_name, old_name, end - old_name);
+        strncat(new_name + (end - old_name), name->data, name->size);
+        v9fs_co_name_to_path(pdu, NULL, new_name, &new_path);
+        g_free(new_name);
+    }
+    err = v9fs_co_rename(pdu, &fidp->path, &new_path);
+    if (err < 0) {
+        goto out;
+    }
+    /*
+     * Fixup fid's pointing to the old name to
+     * start pointing to the new name
+     */
+    for (tfidp = s->fid_list; tfidp; tfidp = tfidp->next) {
+        if (v9fs_path_is_ancestor(&fidp->path, &tfidp->path)) {
+            /* replace the name */
+            v9fs_fix_path(&tfidp->path, &new_path, strlen(fidp->path.data));
+        }
+    }
+out:
+    if (dirfidp) {
+        put_fid(pdu, dirfidp);
+    }
+    v9fs_path_free(&new_path);
+out_nofid:
+    return err;
+}
+
+/* Only works with path name based fid */
+static void v9fs_rename(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    ssize_t err = 0;
+    size_t offset = 7;
+    V9fsString name;
+    int32_t newdirfid;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dds", &fid, &newdirfid, &name);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    BUG_ON(fidp->fid_type != P9_FID_NONE);
+    /* if fs driver is not path based, return EOPNOTSUPP */
+    if (!(pdu->s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT)) {
+        err = -EOPNOTSUPP;
+        goto out;
+    }
+    v9fs_path_write_lock(s);
+    err = v9fs_complete_rename(pdu, fidp, newdirfid, &name);
+    v9fs_path_unlock(s);
+    if (!err) {
+        err = offset;
+    }
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&name);
+}
+
+static void v9fs_fix_fid_paths(V9fsPDU *pdu, V9fsPath *olddir,
+                               V9fsString *old_name, V9fsPath *newdir,
+                               V9fsString *new_name)
+{
+    V9fsFidState *tfidp;
+    V9fsPath oldpath, newpath;
+    V9fsState *s = pdu->s;
+
+
+    v9fs_path_init(&oldpath);
+    v9fs_path_init(&newpath);
+    v9fs_co_name_to_path(pdu, olddir, old_name->data, &oldpath);
+    v9fs_co_name_to_path(pdu, newdir, new_name->data, &newpath);
+
+    /*
+     * Fixup fid's pointing to the old name to
+     * start pointing to the new name
+     */
+    for (tfidp = s->fid_list; tfidp; tfidp = tfidp->next) {
+        if (v9fs_path_is_ancestor(&oldpath, &tfidp->path)) {
+            /* replace the name */
+            v9fs_fix_path(&tfidp->path, &newpath, strlen(oldpath.data));
+        }
+    }
+    v9fs_path_free(&oldpath);
+    v9fs_path_free(&newpath);
+}
+
+static int v9fs_complete_renameat(V9fsPDU *pdu, int32_t olddirfid,
+                                  V9fsString *old_name, int32_t newdirfid,
+                                  V9fsString *new_name)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int err = 0;
+    V9fsState *s = pdu->s;
+    V9fsFidState *newdirfidp = NULL, *olddirfidp = NULL;
+
+    olddirfidp = get_fid(pdu, olddirfid);
+    if (olddirfidp == NULL) {
+        err = -ENOENT;
+        goto out;
+    }
+    if (newdirfid != -1) {
+        newdirfidp = get_fid(pdu, newdirfid);
+        if (newdirfidp == NULL) {
+            err = -ENOENT;
+            goto out;
+        }
+    } else {
+        newdirfidp = get_fid(pdu, olddirfid);
+    }
+
+    err = v9fs_co_renameat(pdu, &olddirfidp->path, old_name,
+                           &newdirfidp->path, new_name);
+    if (err < 0) {
+        goto out;
+    }
+    if (s->ctx.export_flags & V9FS_PATHNAME_FSCONTEXT) {
+        /* Only for path based fid  we need to do the below fixup */
+        v9fs_fix_fid_paths(pdu, &olddirfidp->path, old_name,
+                           &newdirfidp->path, new_name);
+    }
+out:
+    if (olddirfidp) {
+        put_fid(pdu, olddirfidp);
+    }
+    if (newdirfidp) {
+        put_fid(pdu, newdirfidp);
+    }
+    return err;
+}
+
+static void v9fs_renameat(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    ssize_t err = 0;
+    size_t offset = 7;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+    int32_t olddirfid, newdirfid;
+    V9fsString old_name, new_name;
+
+    v9fs_string_init(&old_name);
+    v9fs_string_init(&new_name);
+    err = pdu_unmarshal(pdu, offset, "dsds", &olddirfid,
+                        &old_name, &newdirfid, &new_name);
+    if (err < 0) {
+        goto out_err;
+    }
+
+    v9fs_path_write_lock(s);
+    err = v9fs_complete_renameat(pdu, olddirfid,
+                                 &old_name, newdirfid, &new_name);
+    v9fs_path_unlock(s);
+    if (!err) {
+        err = offset;
+    }
+
+out_err:
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&old_name);
+    v9fs_string_free(&new_name);
+}
+
+static void v9fs_wstat(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    int err = 0;
+    int16_t unused;
+    V9fsStat v9stat;
+    size_t offset = 7;
+    struct stat stbuf;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    v9fs_stat_init(&v9stat);
+    err = pdu_unmarshal(pdu, offset, "dwS", &fid, &unused, &v9stat);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_wstat(pdu->tag, pdu->id, fid,
+                     v9stat.mode, v9stat.atime, v9stat.mtime);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    /* do we need to sync the file? */
+    if (donttouch_stat(&v9stat)) {
+        err = v9fs_co_fsync(pdu, fidp, 0);
+        goto out;
+    }
+    if (v9stat.mode != -1) {
+        uint32_t v9_mode;
+        err = v9fs_co_lstat(pdu, &fidp->path, &stbuf);
+        if (err < 0) {
+            goto out;
+        }
+        v9_mode = stat_to_v9mode(&stbuf);
+        if ((v9stat.mode & P9_STAT_MODE_TYPE_BITS) !=
+            (v9_mode & P9_STAT_MODE_TYPE_BITS)) {
+            /* Attempting to change the type */
+            err = -EIO;
+            goto out;
+        }
+#ifndef CONFIG_WIN32
+        err = v9fs_co_chmod(pdu, &fidp->path,
+                            v9mode_to_mode(v9stat.mode,
+                                           &v9stat.extension));
+#else
+        err = -EPERM;
+#endif
+        if (err < 0) {
+            goto out;
+        }
+    }
+    if (v9stat.mtime != -1 || v9stat.atime != -1) {
+        struct timespec times[2];
+        if (v9stat.atime != -1) {
+            times[0].tv_sec = v9stat.atime;
+            times[0].tv_nsec = 0;
+        } else {
+            times[0].tv_nsec = UTIME_OMIT;
+        }
+        if (v9stat.mtime != -1) {
+            times[1].tv_sec = v9stat.mtime;
+            times[1].tv_nsec = 0;
+        } else {
+            times[1].tv_nsec = UTIME_OMIT;
+        }
+        err = v9fs_co_utimensat(pdu, &fidp->path, times);
+        if (err < 0) {
+            goto out;
+        }
+    }
+    if (v9stat.n_gid != -1 || v9stat.n_uid != -1) {
+#ifndef CONFIG_WIN32
+        err = v9fs_co_chown(pdu, &fidp->path, v9stat.n_uid, v9stat.n_gid);
+#else
+        err = -EPERM;
+#endif
+        if (err < 0) {
+            goto out;
+        }
+    }
+    if (v9stat.name.size != 0) {
+        err = v9fs_complete_rename(pdu, fidp, -1, &v9stat.name);
+        if (err < 0) {
+            goto out;
+        }
+    }
+    if (v9stat.length != -1) {
+        err = v9fs_co_truncate(pdu, &fidp->path, v9stat.length);
+        if (err < 0) {
+            goto out;
+        }
+    }
+    err = offset;
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    v9fs_stat_free(&v9stat);
+    complete_pdu(s, pdu, err);
+}
+
+static int v9fs_fill_statfs(V9fsState *s, V9fsPDU *pdu, struct statfs *stbuf)
+{
+    uint32_t f_type;
+    uint32_t f_bsize;
+    uint64_t f_blocks;
+    uint64_t f_bfree;
+    uint64_t f_bavail;
+    uint64_t f_files;
+    uint64_t f_ffree;
+    uint64_t fsid_val;
+    uint32_t f_namelen;
+    size_t offset = 7;
+    int32_t bsize_factor;
+
+    /*
+     * compute bsize factor based on host file system block size
+     * and client msize
+     */
+    bsize_factor = (s->msize - P9_IOHDRSZ)/stbuf->f_bsize;
+    if (!bsize_factor) {
+        bsize_factor = 1;
+    }
+    f_type  = stbuf->f_type;
+    f_bsize = stbuf->f_bsize;
+    f_bsize *= bsize_factor;
+    /*
+     * f_bsize is adjusted(multiplied) by bsize factor, so we need to
+     * adjust(divide) the number of blocks, free blocks and available
+     * blocks by bsize factor
+     */
+    f_blocks = stbuf->f_blocks/bsize_factor;
+    f_bfree  = stbuf->f_bfree/bsize_factor;
+    f_bavail = stbuf->f_bavail/bsize_factor;
+    f_files  = stbuf->f_files;
+    f_ffree  = stbuf->f_ffree;
+#ifdef CONFIG_LINUX
+    fsid_val = (unsigned int) stbuf->f_fsid.__val[0] |
+               (unsigned long long)stbuf->f_fsid.__val[1] << 32;
+    f_namelen = stbuf->f_namelen;
+#else
+    fsid_val = (unsigned int) stbuf->f_fsid.val[0] |
+               (unsigned long long)stbuf->f_fsid.val[1] << 32;
+    f_namelen = 255;
+#endif
+
+    return pdu_marshal(pdu, offset, "ddqqqqqqd",
+                       f_type, f_bsize, f_blocks, f_bfree,
+                       f_bavail, f_files, f_ffree,
+                       fsid_val, f_namelen);
+}
+
+static void v9fs_statfs(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int32_t fid;
+    ssize_t retval = 0;
+    size_t offset = 7;
+    V9fsFidState *fidp;
+    struct statfs stbuf;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    retval = pdu_unmarshal(pdu, offset, "d", &fid);
+    if (retval < 0) {
+        goto out_nofid;
+    }
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        retval = -ENOENT;
+        goto out_nofid;
+    }
+    retval = v9fs_co_statfs(pdu, &fidp->path, &stbuf);
+    if (retval < 0) {
+        goto out;
+    }
+    retval = v9fs_fill_statfs(s, pdu, &stbuf);
+    if (retval < 0) {
+        goto out;
+    }
+    retval += offset;
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, retval);
+    return;
+}
+
+static void v9fs_mknod(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+
+    int mode;
+    gid_t gid;
+    int32_t fid;
+    V9fsQID qid;
+    int err = 0;
+    int major, minor;
+    size_t offset = 7;
+    V9fsString name;
+    struct stat stbuf;
+    V9fsFidState *fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dsdddd", &fid, &name, &mode,
+                        &major, &minor, &gid);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_mknod(pdu->tag, pdu->id, fid, mode, major, minor);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+#ifndef CONFIG_WIN32
+    err = v9fs_co_mknod(pdu, fidp, &name, fidp->uid, gid,
+                        makedev(major, minor), mode, &stbuf);
+#else
+    err = -EPERM;
+#endif
+    if (err < 0) {
+        goto out;
+    }
+    stat_to_qid(&stbuf, &qid);
+    err = pdu_marshal(pdu, offset, "Q", &qid);
+    if (err < 0) {
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_mknod_return(pdu->tag, pdu->id,
+                            qid.type, qid.version, qid.path);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&name);
+}
+
+/*
+ * Implement posix byte range locking code
+ * Server side handling of locking code is very simple, because 9p server in
+ * QEMU can handle only one client. And most of the lock handling
+ * (like conflict, merging) etc is done by the VFS layer itself, so no need to
+ * do any thing in * qemu 9p server side lock code path.
+ * So when a TLOCK request comes, always return success
+ */
+static void v9fs_lock(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    int8_t status;
+    V9fsFlock flock;
+    size_t offset = 7;
+    struct stat stbuf;
+    V9fsFidState *fidp;
+    int32_t fid, err = 0;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    status = P9_LOCK_ERROR;
+    v9fs_string_init(&flock.client_id);
+    err = pdu_unmarshal(pdu, offset, "dbdqqds", &fid, &flock.type,
+                        &flock.flags, &flock.start, &flock.length,
+                        &flock.proc_id, &flock.client_id);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_lock(pdu->tag, pdu->id, fid,
+                    flock.type, flock.start, flock.length);
+
+
+    /* We support only block flag now (that too ignored currently) */
+    if (flock.flags & ~P9_LOCK_FLAGS_BLOCK) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    err = v9fs_co_fstat(pdu, fidp, &stbuf);
+    if (err < 0) {
+        goto out;
+    }
+    status = P9_LOCK_SUCCESS;
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    err = pdu_marshal(pdu, offset, "b", status);
+    if (err > 0) {
+        err += offset;
+    }
+    trace_v9fs_lock_return(pdu->tag, pdu->id, status);
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&flock.client_id);
+}
+
+/*
+ * When a TGETLOCK request comes, always return success because all lock
+ * handling is done by client's VFS layer.
+ */
+static void v9fs_getlock(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    size_t offset = 7;
+    struct stat stbuf;
+    V9fsFidState *fidp;
+    V9fsGetlock glock;
+    int32_t fid, err = 0;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    v9fs_string_init(&glock.client_id);
+    err = pdu_unmarshal(pdu, offset, "dbqqds", &fid, &glock.type,
+                        &glock.start, &glock.length, &glock.proc_id,
+                        &glock.client_id);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_getlock(pdu->tag, pdu->id, fid,
+                       glock.type, glock.start, glock.length);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    err = v9fs_co_fstat(pdu, fidp, &stbuf);
+    if (err < 0) {
+        goto out;
+    }
+    glock.type = P9_LOCK_TYPE_UNLCK;
+    err = pdu_marshal(pdu, offset, "bqqds", glock.type,
+                          glock.start, glock.length, glock.proc_id,
+                          &glock.client_id);
+    if (err < 0) {
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_getlock_return(pdu->tag, pdu->id, glock.type, glock.start,
+                              glock.length, glock.proc_id);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&glock.client_id);
+}
+
+static void v9fs_mkdir(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    V9fsPDU *pdu = opaque;
+    size_t offset = 7;
+    int32_t fid;
+    struct stat stbuf;
+    V9fsQID qid;
+    V9fsString name;
+    V9fsFidState *fidp;
+    gid_t gid;
+    int mode;
+    int err = 0;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dsdd", &fid, &name, &mode, &gid);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_mkdir(pdu->tag, pdu->id, fid, name.data, mode, gid);
+
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    err = v9fs_co_mkdir(pdu, fidp, &name, mode, fidp->uid, gid, &stbuf);
+    if (err < 0) {
+        goto out;
+    }
+    stat_to_qid(&stbuf, &qid);
+    err = pdu_marshal(pdu, offset, "Q", &qid);
+    if (err < 0) {
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_mkdir_return(pdu->tag, pdu->id,
+                            qid.type, qid.version, qid.path, err);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(pdu->s, pdu, err);
+    v9fs_string_free(&name);
+}
+
+#ifndef CONFIG_WIN32
+static void v9fs_xattrwalk(void *opaque)
+{
+    int64_t size;
+    V9fsString name;
+    ssize_t err = 0;
+    size_t offset = 7;
+    int32_t fid, newfid;
+    V9fsFidState *file_fidp;
+    V9fsFidState *xattr_fidp = NULL;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dds", &fid, &newfid, &name);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_xattrwalk(pdu->tag, pdu->id, fid, newfid, name.data);
+
+    file_fidp = get_fid(pdu, fid);
+    if (file_fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+    xattr_fidp = alloc_fid(s, newfid);
+    if (xattr_fidp == NULL) {
+        err = -EINVAL;
+        goto out;
+    }
+    v9fs_path_copy(&xattr_fidp->path, &file_fidp->path);
+    if (name.data == NULL) {
+        /*
+         * listxattr request. Get the size first
+         */
+        size = v9fs_co_llistxattr(pdu, &xattr_fidp->path, NULL, 0);
+        if (size < 0) {
+            err = size;
+            clunk_fid(s, xattr_fidp->fid);
+            goto out;
+        }
+        /*
+         * Read the xattr value
+         */
+        xattr_fidp->fs.xattr.len = size;
+        xattr_fidp->fid_type = P9_FID_XATTR;
+        xattr_fidp->fs.xattr.copied_len = -1;
+        if (size) {
+            xattr_fidp->fs.xattr.value = g_malloc(size);
+            err = v9fs_co_llistxattr(pdu, &xattr_fidp->path,
+                                     xattr_fidp->fs.xattr.value,
+                                     xattr_fidp->fs.xattr.len);
+            if (err < 0) {
+                clunk_fid(s, xattr_fidp->fid);
+                goto out;
+            }
+        }
+        err = pdu_marshal(pdu, offset, "q", size);
+        if (err < 0) {
+            goto out;
+        }
+        err += offset;
+    } else {
+        /*
+         * specific xattr fid. We check for xattr
+         * presence also collect the xattr size
+         */
+        size = v9fs_co_lgetxattr(pdu, &xattr_fidp->path,
+                                 &name, NULL, 0);
+        if (size < 0) {
+            err = size;
+            clunk_fid(s, xattr_fidp->fid);
+            goto out;
+        }
+        /*
+         * Read the xattr value
+         */
+        xattr_fidp->fs.xattr.len = size;
+        xattr_fidp->fid_type = P9_FID_XATTR;
+        xattr_fidp->fs.xattr.copied_len = -1;
+        if (size) {
+            xattr_fidp->fs.xattr.value = g_malloc(size);
+            err = v9fs_co_lgetxattr(pdu, &xattr_fidp->path,
+                                    &name, xattr_fidp->fs.xattr.value,
+                                    xattr_fidp->fs.xattr.len);
+            if (err < 0) {
+                clunk_fid(s, xattr_fidp->fid);
+                goto out;
+            }
+        }
+        err = pdu_marshal(pdu, offset, "q", size);
+        if (err < 0) {
+            goto out;
+        }
+        err += offset;
+    }
+    trace_v9fs_xattrwalk_return(pdu->tag, pdu->id, size);
+out:
+    put_fid(pdu, file_fidp);
+    if (xattr_fidp) {
+        put_fid(pdu, xattr_fidp);
+    }
+out_nofid:
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&name);
+}
+
+static void v9fs_xattrcreate(void *opaque)
+{
+    int flags;
+    int32_t fid;
+    int64_t size;
+    ssize_t err = 0;
+    V9fsString name;
+    size_t offset = 7;
+    V9fsFidState *file_fidp;
+    V9fsFidState *xattr_fidp;
+    V9fsPDU *pdu = opaque;
+    V9fsState *s = pdu->s;
+
+    v9fs_string_init(&name);
+    err = pdu_unmarshal(pdu, offset, "dsqd", &fid, &name, &size, &flags);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_xattrcreate(pdu->tag, pdu->id, fid, name.data, size, flags);
+
+    file_fidp = get_fid(pdu, fid);
+    if (file_fidp == NULL) {
+        err = -EINVAL;
+        goto out_nofid;
+    }
+    /* Make the file fid point to xattr */
+    xattr_fidp = file_fidp;
+    xattr_fidp->fid_type = P9_FID_XATTR;
+    xattr_fidp->fs.xattr.copied_len = 0;
+    xattr_fidp->fs.xattr.len = size;
+    xattr_fidp->fs.xattr.flags = flags;
+    v9fs_string_init(&xattr_fidp->fs.xattr.name);
+    v9fs_string_copy(&xattr_fidp->fs.xattr.name, &name);
+    xattr_fidp->fs.xattr.value = g_malloc(size);
+    err = offset;
+    put_fid(pdu, file_fidp);
+out_nofid:
+    complete_pdu(s, pdu, err);
+    v9fs_string_free(&name);
+}
+#endif
+
+static void v9fs_readlink(void *opaque)
+{
+    TRACE("[%d][ Enter >> %s]\n", __LINE__, __func__);
+    V9fsPDU *pdu = opaque;
+    size_t offset = 7;
+    V9fsString target;
+    int32_t fid;
+    int err = 0;
+    V9fsFidState *fidp;
+
+    err = pdu_unmarshal(pdu, offset, "d", &fid);
+    if (err < 0) {
+        goto out_nofid;
+    }
+    trace_v9fs_readlink(pdu->tag, pdu->id, fid);
+    fidp = get_fid(pdu, fid);
+    if (fidp == NULL) {
+        err = -ENOENT;
+        goto out_nofid;
+    }
+
+    v9fs_string_init(&target);
+    err = v9fs_co_readlink(pdu, &fidp->path, &target);
+    if (err < 0) {
+        goto out;
+    }
+    err = pdu_marshal(pdu, offset, "s", &target);
+    if (err < 0) {
+        v9fs_string_free(&target);
+        goto out;
+    }
+    err += offset;
+    trace_v9fs_readlink_return(pdu->tag, pdu->id, target.data);
+    v9fs_string_free(&target);
+out:
+    put_fid(pdu, fidp);
+out_nofid:
+    complete_pdu(pdu->s, pdu, err);
+}
+
+static CoroutineEntry *pdu_co_handlers[] = {
+    [P9_TREADDIR] = v9fs_readdir,
+    [P9_TSTATFS] = v9fs_statfs,
+    [P9_TGETATTR] = v9fs_getattr,
+    [P9_TSETATTR] = v9fs_setattr,
+#ifndef CONFIG_WIN32
+    [P9_TXATTRWALK] = v9fs_xattrwalk,
+    [P9_TXATTRCREATE] = v9fs_xattrcreate,
+#endif
+    [P9_TMKNOD] = v9fs_mknod,
+    [P9_TRENAME] = v9fs_rename,
+    [P9_TLOCK] = v9fs_lock,
+    [P9_TGETLOCK] = v9fs_getlock,
+    [P9_TRENAMEAT] = v9fs_renameat,
+    [P9_TREADLINK] = v9fs_readlink,
+    [P9_TUNLINKAT] = v9fs_unlinkat,
+    [P9_TMKDIR] = v9fs_mkdir,
+    [P9_TVERSION] = v9fs_version,
+    [P9_TLOPEN] = v9fs_open,
+    [P9_TATTACH] = v9fs_attach,
+    [P9_TSTAT] = v9fs_stat,
+    [P9_TWALK] = v9fs_walk,
+    [P9_TCLUNK] = v9fs_clunk,
+    [P9_TFSYNC] = v9fs_fsync,
+    [P9_TOPEN] = v9fs_open,
+    [P9_TREAD] = v9fs_read,
+#if 0
+    [P9_TAUTH] = v9fs_auth,
+#endif
+    [P9_TFLUSH] = v9fs_flush,
+    [P9_TLINK] = v9fs_link,
+    [P9_TSYMLINK] = v9fs_symlink,
+    [P9_TCREATE] = v9fs_create,
+    [P9_TLCREATE] = v9fs_lcreate,
+    [P9_TWRITE] = v9fs_write,
+    [P9_TWSTAT] = v9fs_wstat,
+    [P9_TREMOVE] = v9fs_remove,
+};
+
+static void v9fs_op_not_supp(void *opaque)
+{
+    WARN("[%d][%s] >> This operation is not supported.\n", __LINE__, __func__);
+    V9fsPDU *pdu = opaque;
+    complete_pdu(pdu->s, pdu, -EOPNOTSUPP);
+}
+
+static void v9fs_fs_ro(void *opaque)
+{
+    WARN("[%d][%s] >> This is the read-only operation.\n", __LINE__, __func__);
+    V9fsPDU *pdu = opaque;
+    complete_pdu(pdu->s, pdu, -EROFS);
+}
+
+static inline bool is_read_only_op(V9fsPDU *pdu)
+{
+    switch (pdu->id) {
+    case P9_TREADDIR:
+    case P9_TSTATFS:
+    case P9_TGETATTR:
+    case P9_TXATTRWALK:
+    case P9_TLOCK:
+    case P9_TGETLOCK:
+    case P9_TREADLINK:
+    case P9_TVERSION:
+    case P9_TLOPEN:
+    case P9_TATTACH:
+    case P9_TSTAT:
+    case P9_TWALK:
+    case P9_TCLUNK:
+    case P9_TFSYNC:
+    case P9_TOPEN:
+    case P9_TREAD:
+    case P9_TAUTH:
+    case P9_TFLUSH:
+        return 1;
+    default:
+        return 0;
+    }
+}
+
+static void submit_pdu(V9fsState *s, V9fsPDU *pdu)
+{
+    Coroutine *co;
+    CoroutineEntry *handler;
+
+    if (pdu->id >= ARRAY_SIZE(pdu_co_handlers) ||
+        (pdu_co_handlers[pdu->id] == NULL)) {
+        handler = v9fs_op_not_supp;
+    } else {
+        handler = pdu_co_handlers[pdu->id];
+    }
+
+    if (is_ro_export(&s->ctx) && !is_read_only_op(pdu)) {
+        handler = v9fs_fs_ro;
+    }
+    co = qemu_coroutine_create(handler);
+    qemu_coroutine_enter(co, pdu);
+}
+
+void handle_9p_output(VirtIODevice *vdev, VirtQueue *vq)
+{
+    V9fsState *s = (V9fsState *)vdev;
+    V9fsPDU *pdu;
+    ssize_t len;
+
+    while ((pdu = alloc_pdu(s)) &&
+            (len = virtqueue_pop(vq, &pdu->elem)) != 0) {
+        uint8_t *ptr;
+        pdu->s = s;
+        BUG_ON(pdu->elem.out_num == 0 || pdu->elem.in_num == 0);
+        BUG_ON(pdu->elem.out_sg[0].iov_len < 7);
+
+        ptr = pdu->elem.out_sg[0].iov_base;
+
+        pdu->size = le32_to_cpu(*(uint32_t *)ptr);
+        pdu->id = ptr[4];
+        pdu->tag = le16_to_cpu(*(uint16_t *)(ptr + 5));
+        qemu_co_queue_init(&pdu->complete);
+        submit_pdu(s, pdu);
+    }
+    free_pdu(s, pdu);
+}
+
+static void __attribute__((__constructor__)) virtio_9p_set_fd_limit(void)
+{
+#ifndef CONFIG_WIN32
+    struct rlimit rlim;
+    if (getrlimit(RLIMIT_NOFILE, &rlim) < 0) {
+        fprintf(stderr, "Failed to get the resource limit\n");
+        exit(1);
+    }
+    open_fd_hw = rlim.rlim_cur - MIN(400, rlim.rlim_cur/3);
+    open_fd_rc = rlim.rlim_cur/2;
+#else
+    open_fd_hw = 3696; // 4096 - 400
+    open_fd_rc = 2048; // 4096 / 2
+#endif
+}
diff --git a/hw/9pfs/virtio-9p-xattr-user.c b/hw/9pfs/virtio-9p-xattr-user.c
index f22fac1129..bf3cb80b71 100644
--- a/hw/9pfs/virtio-9p-xattr-user.c
+++ b/hw/9pfs/virtio-9p-xattr-user.c
@@ -10,7 +10,6 @@
  * the COPYING file in the top-level directory.
  *
  */
-
 #include <sys/types.h>
 #include "hw/virtio/virtio.h"
 #include "virtio-9p.h"
diff --git a/hw/9pfs/virtio-9p-xattr.h b/hw/9pfs/virtio-9p-xattr.h
index 202f139b53..417addccf0 100644
--- a/hw/9pfs/virtio-9p-xattr.h
+++ b/hw/9pfs/virtio-9p-xattr.h
@@ -54,34 +54,61 @@ ssize_t pt_listxattr(FsContext *ctx, const char *path, char *name, void *value,
 static inline ssize_t pt_getxattr(FsContext *ctx, const char *path,
                                   const char *name, void *value, size_t size)
 {
+#ifdef CONFIG_MARU
+#ifndef CONFIG_WIN32
     char buffer[PATH_MAX];
 #ifdef CONFIG_LINUX
     return lgetxattr(rpath(ctx, path, buffer), name, value, size);
 #else
     return getxattr(rpath(ctx, path, buffer), name, value, size, 0, XATTR_NOFOLLOW);
 #endif
+#else
+    return 0;
+#endif
+#else
+    char buffer[PATH_MAX];
+    return lgetxattr(rpath(ctx, path, buffer), name, value, size);
+#endif
 }
 
 static inline int pt_setxattr(FsContext *ctx, const char *path,
                               const char *name, void *value,
                               size_t size, int flags)
 {
+#ifdef CONFIG_MARU
+#ifndef CONFIG_WIN32
     char buffer[PATH_MAX];
 #ifdef CONFIG_LINUX
     return lsetxattr(rpath(ctx, path, buffer), name, value, size, flags);
 #else
     return setxattr(rpath(ctx, path, buffer), name, value, size, 0, flags | XATTR_NOFOLLOW);
 #endif
+#else
+    return 0;
+#endif
+#else
+    char buffer[PATH_MAX];
+    return lsetxattr(rpath(ctx, path, buffer), name, value, size, flags);
+#endif
 }
 
 static inline int pt_removexattr(FsContext *ctx,
                                  const char *path, const char *name)
 {
+#ifdef CONFIG_MARU
+#ifndef CONFIG_WIN32
     char buffer[PATH_MAX];
 #ifdef CONFIG_LINUX
     return lremovexattr(rpath(ctx, path, buffer), name);
 #else
-	return removexattr(rpath(ctx, path, buffer), name, XATTR_NOFOLLOW);
+    return removexattr(rpath(ctx, path, buffer), name, XATTR_NOFOLLOW);
+#endif
+#else
+    return 0;
+#endif
+#else
+    char buffer[PATH_MAX];
+    return lremovexattr(rpath(ctx, path, buffer), name);
 #endif
 }
 
diff --git a/hw/9pfs/virtio-9p.c b/hw/9pfs/virtio-9p.c
index dfc773836b..8cbb8ae32a 100644
--- a/hw/9pfs/virtio-9p.c
+++ b/hw/9pfs/virtio-9p.c
@@ -21,11 +21,6 @@
 #include "trace.h"
 #include "migration/migration.h"
 
-#ifdef CONFIG_DARWIN
-#define O_DIRECT 040000 /* Direct disk access */
-#define O_NOATIME 01000000 /* Do not set atime */
-#endif
-
 int open_fd_hw;
 int total_open_fd;
 static int open_fd_rc;
@@ -859,21 +854,12 @@ static void stat_to_v9stat_dotl(V9fsState *s, const struct stat *stbuf,
     v9lstat->st_size = stbuf->st_size;
     v9lstat->st_blksize = stbuf->st_blksize;
     v9lstat->st_blocks = stbuf->st_blocks;
-#ifdef CONFIG_LINUX
     v9lstat->st_atime_sec = stbuf->st_atime;
     v9lstat->st_atime_nsec = stbuf->st_atim.tv_nsec;
     v9lstat->st_mtime_sec = stbuf->st_mtime;
     v9lstat->st_mtime_nsec = stbuf->st_mtim.tv_nsec;
     v9lstat->st_ctime_sec = stbuf->st_ctime;
     v9lstat->st_ctime_nsec = stbuf->st_ctim.tv_nsec;
-#else // darwin
-    v9lstat->st_atime_sec = stbuf->st_atimespec.tv_sec;
-    v9lstat->st_atime_nsec = stbuf->st_atimespec.tv_nsec;
-    v9lstat->st_mtime_sec = stbuf->st_mtimespec.tv_sec;
-    v9lstat->st_mtime_nsec = stbuf->st_mtimespec.tv_nsec;
-    v9lstat->st_ctime_sec = stbuf->st_ctimespec.tv_sec;
-    v9lstat->st_ctime_nsec = stbuf->st_ctimespec.tv_nsec;
-#endif
     /* Currently we only support BASIC fields in stat */
     v9lstat->st_result_mask = P9_STATS_BASIC;
 
@@ -1612,10 +1598,6 @@ static int v9fs_do_readdir_with_stat(V9fsPDU *pdu,
     dent = g_malloc(sizeof(struct dirent));
 
     while (1) {
-#ifndef CONFIG_LINUX
-        uint64_t d_offset = 0;
-        d_offset = v9fs_co_telldir(pdu, fidp);
-#endif
         v9fs_path_init(&path);
         err = v9fs_co_readdir_r(pdu, fidp, dent, &result);
         if (err || !result) {
@@ -1646,11 +1628,7 @@ static int v9fs_do_readdir_with_stat(V9fsPDU *pdu,
         count += len;
         v9fs_stat_free(&v9stat);
         v9fs_path_free(&path);
-#ifdef CONFIG_LINUX
         saved_dir_pos = dent->d_off;
-#else
-        saved_dir_pos = d_offset;
-#endif
     }
 out:
     g_free(dent);
@@ -1806,16 +1784,10 @@ static int v9fs_do_readdir(V9fsPDU *pdu,
     dent = g_malloc(sizeof(struct dirent));
 
     while (1) {
-#ifndef CONFIG_LINUX
-        uint64_t d_offset = 0;
-        d_offset = v9fs_co_telldir(pdu, fidp);
-#endif
-
         err = v9fs_co_readdir_r(pdu, fidp, dent, &result);
         if (err || !result) {
             break;
         }
-
         v9fs_string_init(&name);
         v9fs_string_sprintf(&name, "%s", dent->d_name);
         if ((count + v9fs_readdir_data_size(&name)) > max_count) {
@@ -1837,15 +1809,9 @@ static int v9fs_do_readdir(V9fsPDU *pdu,
         qid.version = 0;
 
         /* 11 = 7 + 4 (7 = start offset, 4 = space for storing count) */
-#ifdef CONFIG_LINUX
         len = pdu_marshal(pdu, 11 + count, "Qqbs",
                           &qid, dent->d_off,
                           dent->d_type, &name);
-#else
-        len = pdu_marshal(pdu, 11 + count, "Qqbs",
-                          &qid, d_offset,
-                          dent->d_type, &name);
-#endif
         if (len < 0) {
             v9fs_co_seekdir(pdu, fidp, saved_dir_pos);
             v9fs_string_free(&name);
@@ -1854,11 +1820,7 @@ static int v9fs_do_readdir(V9fsPDU *pdu,
         }
         count += len;
         v9fs_string_free(&name);
-#ifdef CONFIG_LINUX
         saved_dir_pos = dent->d_off;
-#else
-        saved_dir_pos = d_offset;
-#endif
     }
     g_free(dent);
     if (err < 0) {
@@ -2756,15 +2718,9 @@ static int v9fs_fill_statfs(V9fsState *s, V9fsPDU *pdu, struct statfs *stbuf)
     f_bavail = stbuf->f_bavail/bsize_factor;
     f_files  = stbuf->f_files;
     f_ffree  = stbuf->f_ffree;
-#ifdef CONFIG_LINUX
     fsid_val = (unsigned int) stbuf->f_fsid.__val[0] |
                (unsigned long long)stbuf->f_fsid.__val[1] << 32;
     f_namelen = stbuf->f_namelen;
-#else
-    fsid_val = (unsigned int) stbuf->f_fsid.val[0] |
-               (unsigned long long)stbuf->f_fsid.val[1] << 32;
-    f_namelen = 255;
-#endif
 
     return pdu_marshal(pdu, offset, "ddqqqqqqd",
                        f_type, f_bsize, f_blocks, f_bfree,
diff --git a/hw/9pfs/virtio-9p.h b/hw/9pfs/virtio-9p.h
index 1d6eedb7d8..cdf4ab6cbf 100644
--- a/hw/9pfs/virtio-9p.h
+++ b/hw/9pfs/virtio-9p.h
@@ -5,7 +5,13 @@
 #include <dirent.h>
 #include <sys/time.h>
 #include <utime.h>
+#ifdef CONFIG_MARU
+#ifndef CONFIG_WIN32
 #include <sys/resource.h>
+#endif
+#else
+#include <sys/resource.h>
+#endif
 #include "hw/virtio/virtio.h"
 #include "fsdev/file-op-9p.h"
 #include "fsdev/virtio-9p-marshal.h"
@@ -114,8 +120,20 @@ enum p9_proto_version {
 #define FID_NON_RECLAIMABLE     0x2
 static inline const char *rpath(FsContext *ctx, const char *path, char *buffer)
 {
+#ifndef CONFIG_MARU
+    snprintf(buffer, PATH_MAX, "%s/%s", ctx->fs_root, path);
+    return buffer;
+#else
+#ifndef CONFIG_WIN32
     snprintf(buffer, PATH_MAX, "%s/%s", ctx->fs_root, path);
+#else
+    snprintf(buffer, PATH_MAX, "%s\\%s", ctx->fs_root, path);
+    while(buffer[strlen(buffer)-1] == '\\'){
+        buffer[strlen(buffer)-1] = '\0';
+    }
+#endif
     return buffer;
+#endif
 }
 
 /*
diff --git a/include/qemu/xattr.h b/include/qemu/xattr.h
index e5b485cdb7..f9220359e7 100644
--- a/include/qemu/xattr.h
+++ b/include/qemu/xattr.h
@@ -26,7 +26,11 @@
 #ifndef ENOATTR
 #  define ENOATTR ENODATA
 #endif
+# ifdef CONFIG_MARU
+#  ifndef CONFIG_WIN32
 #  include <sys/xattr.h>
+#  endif
+# endif
 #endif
 
 #endif
diff --git a/tizen/src/resources_win32.h b/tizen/src/resources_win32.h
new file mode 100644
index 0000000000..883fe5ecc0
--- /dev/null
+++ b/tizen/src/resources_win32.h
@@ -0,0 +1,92 @@
+/*
+ * Windows resources file for Virtio 9p
+ *
+ * Copyright (c) 2014 Samsung Electronics Co., Ltd All Rights Reserved
+ *
+ * Contact:
+ *  Sooyoung Ha <yoosah.ha@samsung.com>
+ *  YeongKyoon Lee <yeongkyoon.lee@samsung.com>
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License
+ * as published by the Free Software Foundation; either version 2
+ * of the License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.
+ *
+ * Contributors:
+ * - S-Core Co., Ltd
+ *
+ */
+
+#ifndef __resources_win32_h__
+#define __resources_win32_h__
+
+#include <errno.h>
+#include <windows.h>
+
+#ifndef uid_t
+#define uid_t int32_t
+#endif
+
+#ifndef gid_t
+#define gid_t int32_t
+#endif
+
+#ifndef UTIME_NOW
+#define UTIME_NOW       ((1l << 30) - 1l)
+#endif
+#ifndef UTIME_OMIT
+#define UTIME_OMIT      ((1l << 30) - 2l)
+#endif
+
+struct timespec {
+    time_t  tv_sec;
+    long    tv_nsec;
+};
+
+typedef struct {
+    WORD val[2];
+} fsid_t;
+
+struct statfs {
+   DWORD  f_type;
+   DWORD  f_bsize;
+   DWORD  f_blocks;
+   DWORD  f_bfree;
+   DWORD  f_bavail;
+   DWORD  f_files;
+   DWORD  f_ffree;
+   fsid_t f_fsid;
+   DWORD  f_namelen;
+   DWORD  f_spare[6];
+};
+
+#define O_NOCTTY           0400
+#define O_NONBLOCK        04000
+#define O_DSYNC          010000
+#define O_DIRECTORY     0200000
+#define O_NOFOLLOW      0400000
+#define O_DIRECT         040000
+#define O_NOATIME      01000000
+#define O_SYNC         04010000
+#define O_ASYNC          020000
+#define O_FSYNC          O_SYNC
+#define FASYNC          O_ASYNC
+
+#ifndef EOPNOTSUPP
+#define EOPNOTSUPP ENOSYS
+#endif
+
+#ifndef ENOBUFS
+#define ENOBUFS EFAULT
+#endif
+
+#endif