block/vmdk: Support creation of SCSI VMDK images in qemu-img

Signed-off-by: Ulrich Hecht <uli@suse.de>
[AF: Changed BLOCK_FLAG_SCSI from 8 to 16 for v1.2]
[AF: Rebased onto upstream VMDK SCSI support]
Signed-off-by: Andreas Färber <afaerber@suse.de>

4 files changed, 22 insertions, 3 deletions

diff --git a/block.c b/block.c
index 01b66d802..35a07a57c 100644
--- a/block.c
+++ b/block.c
@@ -4469,7 +4469,7 @@ void bdrv_img_create(const char *filename, const char *fmt,
                      Error **errp, bool quiet)
 {
     QEMUOptionParameter *param = NULL, *create_options = NULL;
-    QEMUOptionParameter *backing_fmt, *backing_file, *size;
+    QEMUOptionParameter *backing_fmt, *backing_file, *size, *scsi;
     BlockDriverState *bs = NULL;
     BlockDriver *drv, *proto_drv;
     BlockDriver *backing_drv = NULL;
@@ -4579,6 +4579,10 @@ void bdrv_img_create(const char *filename, const char *fmt,
     if (!quiet) {
         printf("Formatting '%s', fmt=%s ", filename, fmt);
         print_option_parameters(param);
+        scsi = get_option_parameter(param, BLOCK_OPT_SCSI);
+        if (scsi && scsi->value.n) {
+            printf(", SCSI");
+        }
         puts("");
     }
     ret = bdrv_create(drv, filename, param);
diff --git a/block/vmdk.c b/block/vmdk.c
index 346bb5cad..c45558cdb 100644
--- a/block/vmdk.c
+++ b/block/vmdk.c
@@ -1588,6 +1588,8 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options)
             fmt = options->value.s;
         } else if (!strcmp(options->name, BLOCK_OPT_ZEROED_GRAIN)) {
             zeroed_grain |= options->value.n;
+        } else if (!strcmp(options->name, BLOCK_OPT_SCSI)) {
+            flags |= options->value.n ? BLOCK_FLAG_SCSI: 0;
         }
         options++;
     }
@@ -1691,7 +1693,7 @@ static int vmdk_create(const char *filename, QEMUOptionParameter *options)
             ext_desc_lines,
             (flags & BLOCK_FLAG_COMPAT6 ? 6 : 4),
             total_size / (int64_t)(63 * number_heads * 512), number_heads,
-                adapter_type);
+            flags & BLOCK_FLAG_SCSI ? "lsilogic" : adapter_type);
     if (split || flat) {
         fd = qemu_open(filename,
                        O_WRONLY | O_CREAT | O_TRUNC | O_BINARY | O_LARGEFILE,
@@ -1820,6 +1822,11 @@ static QEMUOptionParameter vmdk_create_options[] = {
         .type = OPT_FLAG,
         .help = "Enable efficient zero writes using the zeroed-grain GTE feature"
     },
+    {
+        .name = BLOCK_OPT_SCSI,
+        .type = OPT_FLAG,
+        .help = "SCSI image"
+    },
     { NULL }
 };
 
diff --git a/include/block/block_int.h b/include/block/block_int.h
index e45f2a0d5..74f71ba5e 100644
--- a/include/block/block_int.h
+++ b/include/block/block_int.h
@@ -38,6 +38,7 @@
 #define BLOCK_FLAG_ENCRYPT          1
 #define BLOCK_FLAG_COMPAT6          4
 #define BLOCK_FLAG_LAZY_REFCOUNTS   8
+#define BLOCK_FLAG_SCSI             16
 
 #define BLOCK_IO_LIMIT_READ     0
 #define BLOCK_IO_LIMIT_WRITE    1
@@ -49,6 +50,7 @@
 #define BLOCK_OPT_SIZE              "size"
 #define BLOCK_OPT_ENCRYPT           "encryption"
 #define BLOCK_OPT_COMPAT6           "compat6"
+#define BLOCK_OPT_SCSI              "scsi"
 #define BLOCK_OPT_BACKING_FILE      "backing_file"
 #define BLOCK_OPT_BACKING_FMT       "backing_fmt"
 #define BLOCK_OPT_CLUSTER_SIZE      "cluster_size"
diff --git a/qemu-img.c b/qemu-img.c
index b9a848db7..abf345e25 100644
--- a/qemu-img.c
+++ b/qemu-img.c
@@ -1127,7 +1127,7 @@ static int img_convert(int argc, char **argv)
     const uint8_t *buf1;
     BlockDriverInfo bdi;
     QEMUOptionParameter *param = NULL, *create_options = NULL;
-    QEMUOptionParameter *out_baseimg_param;
+    QEMUOptionParameter *out_baseimg_param, *scsi;
     char *options = NULL;
     const char *snapshot_name = NULL;
     float local_progress = 0;
@@ -1329,6 +1329,12 @@ static int img_convert(int argc, char **argv)
         }
     }
 
+    if ((scsi = get_option_parameter(param, BLOCK_OPT_SCSI)) && scsi->value.n && strcmp(drv->format_name, "vmdk")) {
+        error_report("SCSI devices not supported for this file format");
+        ret = -1;
+        goto out;
+    }
+
     /* Create the new image */
     ret = bdrv_create(drv, out_filename, param);
     if (ret < 0) {