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2010-03-09documentation: qemu_write_full don't work with non-blocking fd'sJuan Quintela1-0/+5
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-23Fix qemu_eventfd compile when !CONFIG_EVENTFDAvi Kivity1-1/+1
Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-17use eventfd for iothreadPaolo Bonzini1-0/+32
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-02-10fix placement of config-host.h inclusionPaolo Bonzini1-3/+4
The #ifdef CONFIG_SOLARIS below was useless without this patch. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-26Tell users about out-of-memory errorsStefan Weil1-1/+9
Aborting without an error message when memory is short is not helpful, so print the reason for the abort. Try qemu -m 1000000 or qemu -m 2000 (win32) to force an out-of-memory error. v2: * Fix error message for win32. * Fix error message for posix_memalign. Thanks to malc for the hints. Signed-off-by: Stefan Weil <weil@mail.berlios.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-26Introduce qemu_write_full()Kirill A. Shutemov1-0/+27
A variant of write(2) which handles partial write. Signed-off-by: Kirill A. Shutemov <kirill@shutemov.name> Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-13osdep.c: Fix accept4 fallbackKevin Wolf1-1/+1
Commit 3a03bfa5 added a fallback in case the Linux kernel running qemu is older than the kernel of the build system. Unfortunately, v1 was committed instead of v2, so the code has a bug that was revealed in the review (checking for the wrong error code). Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-18fix pidfile option to work in WIN32Juha Riihimäki1-11/+2
Explicit read/write locking pidfile under WIN32 is bit extreme nobody get the chance to read the pidfile. Convert to a write-only lock. Also, creating pidfile was disabled along with daemonize under WIN32. Enable it, but do not enable daemon support which doesn't exist under WIN32 atm. From: Juha Riihimäki <juha.riihimaki@nokia.com> Signed-off-by: Juha Riihimäki <juha.riihimaki@nokia.com> Signed-off-by: Riku Voipio <riku.voipio@nokia.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-18osdep: Fix runtime failure on older Linux kernelsAndre Przywara1-6/+12
If QEMU finds newer kernel header files on compilation time, it will use advertised features like pipe2 or SOCK_CLOEXEC by just doing a compile test. If later the executables are executed on an older kernel (<2.6.27, like Xen Dom0 2.6.18), then QEMU will fail on opening sockets and creating pipes and returns the rather unspecific "qemu_init_main_loop failed". This patch fixes this by checking the return values of these calls for EINVAL and ENOSYS and falling back to the older versions automatically. Signed-off-by: Andre Przywara <andre.przywara@amd.com> Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
2009-12-03Don't leak file descriptorsKevin Wolf1-1/+103
We're leaking file descriptors to child processes. Set FD_CLOEXEC on file descriptors that don't need to be passed to children to stop this misbehaviour. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-12Add #defines needed by OpenSolaris, fix breakage by the #definesBlue Swirl1-2/+2
We need to define _XOPEN_SOURCE and __EXTENSIONS__ macros in order to get CMSG_ and TIOCWIN macros defined. But then _POSIX_C_SOURCE gets defined, which is (incorrectly) used as an indicator for existence of posix_memalign() in osdep.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-08-24Only build osdep onceAnthony Liguori1-3/+0
We no longer need hackery to work around kqemu Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-24Unbreak large mem support by removing kqemuAnthony Liguori1-121/+0
kqemu introduces a number of restrictions on the i386 target. The worst is that it prevents large memory from working in the default build. Furthermore, kqemu is fundamentally flawed in a number of ways. It relies on the TSC as a time source which will not be reliable on a multiple processor system in userspace. Since most modern processors are multicore, this severely limits the utility of kqemu. kvm is a viable alternative for people looking to accelerate qemu and has the benefit of being supported by the upstream Linux kernel. If someone can implement work arounds to remove the restrictions introduced by kqemu, I'm happy to avoid and/or revert this patch. N.B. kqemu will still function in the 0.11 series but this patch removes it from the 0.12 series. Paul, please Ack or Nack this patch. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27rename HOST_BSD to CONFIG_BSDJuan Quintela1-3/+3
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27change HOST_SOLARIS to CONFIG_SOLARIS{_VERSION}Juan Quintela1-3/+3
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-08Add out of memory and zero size argument checks to be consistent withmalc1-5/+25
the qemu_malloc routines
2009-05-13Add tool_osdep.cPaul Brook1-0/+3
osdep.c is built in both as a toplevel target independant object, and as a per-target object because of kqemu dependencies. Under some circumstances make picks up the wrong one. Build the former as tool-osdep to avoid this conflict. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-04-19kqemu: merge CONFIG_KQEMU and USE_KQEMUblueswir11-3/+3
Basically a recursive ":%s/USE_KQEMU/CONFIG_KQEMU/g". Signed-off-by: Paul Bolle <pebolle@tiscali.nl> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7189 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-08Fix windows build and clean up use of <windows.h>aliguori1-1/+0
We want to globally define WIN_LEAN_AND_MEAN and WINVER to particular values so let's do it in OS_CFLAGS. Then, we can pepper in windows.h includes where using #includes that require it. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6783 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-08Rename _BSD to HOST_BSD so that it's more obvious that it's defined by configureblueswir11-3/+3
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6775 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07Support for DragonFly BSD (Hasso Tepper)blueswir11-2/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6746 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07Fix BSD breakage from r6736blueswir11-0/+3
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6742 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07Sparse fixes: NULL use, header order, ANSI prototypes, staticblueswir11-3/+2
Fix Sparse warnings: * use NULL instead of plain 0 * rearrange header include order to avoid redefining types accidentally * ANSIfy SLIRP * avoid "restrict" keyword * add static git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6736 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-11Remove redundant #ifdef _BSDblueswir11-4/+0
since _BSD if already handled in osdep.c:qemu_memalign(), we don't need to check it in the calling function again. getpagesize() is available in BSD. Signed-off-by: Andre Przywara <andre.przywara@amd.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5983 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-22Use MAP_ANON also for FreeBSD (Juergen Lock)blueswir11-2/+5
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5778 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-18Use qemu_memalign instead of memalign in qemu_vmallocmalc1-1/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5730 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11Fix -linux-user build by reverting r5701aliguori1-14/+1
Unfortunately, -linux-user doesn't use osdep as it replaces some of those functions with specific ones. The code #ifdef code in exec.c needs to remain in place so instead of introducing a qemu_getpagesize() let's just use getpagesize() in the non-Windows implementation of qemu_vmalloc. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5703 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11Allocate guest memory on host page boundaries (Hollis Blanchard)aliguori1-1/+1
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5702 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11Define OS-dependent qemu_getpagesize() (Hollis Blanchard)aliguori1-0/+13
Signed-off-by: Hollis Blanchard <hollisb@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5701 c046a42c-6fe2-441c-8c8c-71466251a162
2008-09-15Use common objects for qemu-img and qemu-nbdaliguori1-0/+27
Right now, we sprinkle #if defined(QEMU_IMG) && defined(QEMU_NBD) all over the code. It's ugly and causes us to have to build multiple object files for linking against qemu and the tools. This patch introduces a new file, qemu-tool.c which contains enough for qemu-img, qemu-nbd, and QEMU to all share the same objects. This also required getting qemu-nbd to be a bit more Windows friendly. I also changed the Windows block-raw to use normal IO instead of overlapping IO since we don't actually do AIO yet on Windows. I changed the various #if 0's to #if WIN32_AIO to make it easier for someone to eventually fix AIO on Windows. After this patch, there are no longer any #ifdef's related to qemu-img and qemu-nbd. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5226 c046a42c-6fe2-441c-8c8c-71466251a162
2008-08-15Preliminary OpenBSD host support (based on OpenBSD patches by Todd T. Fries)blueswir11-2/+15
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5012 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-27Use correct types to enable > 2G support, based on a patch fromaurel321-1/+0
Anthony Liguori. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4265 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-22Revert "Use correct types to enable > 2G support" (r4238), it isaurel321-0/+1
not yet ready. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4240 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-22Use correct types to enable > 2G support, based on a patch fromaurel321-1/+0
Anthony Liguori. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4238 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-20Use "mount -o remount" instead of "umount" and "mount /dev/shm",aurel321-2/+1
which results in emptying this virtual file system. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4228 c046a42c-6fe2-441c-8c8c-71466251a162
2008-04-11Remove osdep.c/qemu-img code duplicationaurel321-35/+0
(Kevin Wolf) git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@4191 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-24Add "cache" parameter to "-drive" (Laurent Vivier).balrog1-0/+20
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3848 c046a42c-6fe2-441c-8c8c-71466251a162
2007-12-17Use WIN32_LEAN_AND_MEAN, by Stefan Weil.ths1-0/+1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3832 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-18Add statics and missing #includes for prototypes.pbrook1-2/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3683 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-17Break up vl.h.pbrook1-4/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3674 c046a42c-6fe2-441c-8c8c-71466251a162
2007-09-16find -type f | xargs sed -i 's/[\t ]$//g' # on most filesths1-13/+13
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3173 c046a42c-6fe2-441c-8c8c-71466251a162
2007-06-07Windows build fixes.pbrook1-0/+24
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2959 c046a42c-6fe2-441c-8c8c-71466251a162
2007-03-25qemu_create_pidfile implementation for Win32, based on a patch byths1-0/+48
Carlos O'Donell. git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2540 c046a42c-6fe2-441c-8c8c-71466251a162
2007-01-17Kqemu support for Solaris, by Ben Taylor.ths1-0/+13
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2329 c046a42c-6fe2-441c-8c8c-71466251a162
2006-08-17fd leak fix (Igor Kovalenko)bellard1-8/+4
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2118 c046a42c-6fe2-441c-8c8c-71466251a162
2006-08-03removed unused codebellard1-238/+0
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2080 c046a42c-6fe2-441c-8c8c-71466251a162
2006-08-01removed unused codebellard1-195/+0
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@2072 c046a42c-6fe2-441c-8c8c-71466251a162
2006-05-22Only use /dev/shm hack when kqemu is enabled.pbrook1-4/+18
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1930 c046a42c-6fe2-441c-8c8c-71466251a162
2005-04-23informative message about low memory on /dev/shmbellard1-0/+27
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1388 c046a42c-6fe2-441c-8c8c-71466251a162
2005-04-17windows support for kqemu (Filip Navara)bellard1-6/+19
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1366 c046a42c-6fe2-441c-8c8c-71466251a162
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