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2010-05-11port qemu-kvm's on_vcpu codeMarcelo Tosatti
run_on_cpu allows to execute work on a given CPUState context. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-04-01virtio: move typedef to qemu-commonMichael S. Tsirkin
make it possible to use type without header include, simplifying header dependencies. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-04-01notifier: event notifier implementationMichael S. Tsirkin
event notifiers are slightly generalized eventfd descriptors. Current implementation depends on eventfd because vhost is the only user, and vhost depends on eventfd anyway, but a stub is provided for non-eventfd case. We'll be able to further generalize this when another user comes along and we see how to best do this. Signed-off-by: Michael S. Tsirkin <mst@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-29Compile qemu-timer only onceBlue Swirl
Arrange various declarations so that also non-CPU code can access them, adjust users. Move CPU specific code to cpus.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-29Move cpu_exec_init_all() declaration to qemu-common.hBlue Swirl
Let cpu_exec_init_all() be called from non-CPU code. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-03-19rename IOCanRWHandler to IOCanReadHandlerJuan Quintela
It was always only used for reads Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-03-17split out qemu-timer.cPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-02-22Merge remote branch 'qemu-kvm/uq/master' into stagingAnthony Liguori
2010-02-19Merge remote branch 'mst/for_anthony' into stagingAnthony Liguori
2010-02-18get rid of hostregs_helper.hPaolo Bonzini
Since b567b38 (target-arm: remove T0 and T1, 2009-10-16) the only global register that is used is AREG0, so the complexity of hostregs_helper.h is unused. Use regular assignments and a compiler optimization barrier. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2010-02-17use eventfd for iothreadPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Avi Kivity <avi@redhat.com>
2010-02-14pci: move pcibus_t to qemu-commonMichael S. Tsirkin
move pcibus_t to qemu-common.h to simplify header dependencies. Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2010-01-26block: avoid creating too large iovecs in multiwrite_mergeChristoph Hellwig
If we go over the maximum number of iovecs support by syscall we get back EINVAL from the kernel which translate to I/O errors for the guest. Add a MAX_IOV defintion for platforms that don't have it. For now we use the same 1024 define that's used on Linux and various other platforms, but until the windows block backend implements some kind of vectored I/O it doesn't matter. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-26force to test result for qemu_write_full()Juan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2010-01-26Introduce qemu_write_full()Kirill A. Shutemov
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>
2010-01-19Fix QEMU_WARN_UNUSED_RESULTKevin Wolf
Since commit 747bbdf7 QEMU_WARN_UNUSED_RESULT is never defined as it is conditional on a define from config-host.h which is included only later. Include that file earlier to get the warnings back. Reactivating it unfortunately leads to some warnings about unused qdev_init results. These calls are changed to qdev_init_nofail to avoid build failures. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-12-03Don't leak file descriptorsKevin Wolf
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>
2009-12-01pci: move typedef, PCIHostState, PCIExpressHost to qemu-common.h.Isaku Yamahata
This patch moves two typedefs, PCIHostState and PCIExpressHost to qemu-common.h for consistency as PCIBus and PCIDevice are typedefed in qemu-common.h. Signed-off-by: Isaku Yamahata <yamahata@valinux.co.jp> Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
2009-11-22BCD cleanupPaul Brook
Combine multiple BCD implementations. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-10-27Introduce contexts for asynchronous callbacksKevin Wolf
Add the possibility to use AIO and BHs without allowing foreign callbacks to be run. Basically, you put your own AIOs and BHs in a separate context. For details see the comments in the source. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27Split out bottom halvesKevin Wolf
Instead of putting more and more stuff into vl.c, let's have the generic functions that deal with asynchronous callbacks in their own file. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27net: add macaddr type.Gerd Hoffmann
Add new type for mac addresses. Add function which sets the qemu default mac address if it finds the mac address uninitialized (i.e. all zeros). Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-18Suppress warnings about 'warn_unused_result' attribute directiveBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-10-15net: refactor packet queueing codeMark McLoughlin
The packet queue code is fairly standalone, has some complex details and easily reusable. It makes sense to split it out on its own. This patch doesn't contain any functional changes. Patchworks-ID: 35511 Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-12unlock iothread mutex before running kvm ioctlGlauber Costa
Without this, kvm will hold the mutex while it issues its run ioctl, and never be able to step out of it, causing a deadlock. Patchworks-ID: 35359 Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11block: use fdatasync instead of fsync if possibleChristoph Hellwig
If we are flushing the caches for our image files we only care about the data (including the metadata required for accessing it) but not things like timestamp updates. So try to use fdatasync instead of fsync to implement the flush operations. Unfortunately many operating systems still do not support fdatasync, so we add a qemu_fdatasync wrapper that uses fdatasync if available as per the _POSIX_SYNCHRONIZED_IO feature macro or fsync otherwise. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11Add bdrv_aio_multiwriteKevin Wolf
One performance problem of qcow2 during the initial image growth are sequential writes that are not cluster aligned. In this case, when a first requests requires to allocate a new cluster but writes only to the first couple of sectors in that cluster, the rest of the cluster is zeroed - just to be overwritten by the following second request that fills up the cluster. Let's try to merge sequential write requests to the same cluster, so we can avoid to write the zero padding to the disk in the first place. As a nice side effect, also other formats take advantage of dealing with less and larger requests. Signed-off-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-15user: compile path.c only onceBlue Swirl
Also merge bsd-user/path.c and linux-user/path.c. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-07-28Define ENOTSUP anywhere it isn't definedAnthony Liguori
I confused ENOTSUP with ENOTSUPP. Juan's original patch was correct. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27define ENOTSUP the same that the other errorsJuan Quintela
aliguori: ENOTSUP is not 4096 universally, only on OpenBSD Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27rename HAVE_IOVEC to CONFIG_IOVECJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27define MAP_ANONYMOUS if it is not defined in qemu-common.hJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-09Revert "support colon in filenames"Anthony Liguori
This reverts commit 707c0dbc97cddfe8d2441b8259c6c526d99f2dd8. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-01Fix missing strnlen problemsBlue Swirl
Fix missing strnlen (a GNU extension) problems by using qemu_strnlen used for user emulators also for system emulators. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-29support colon in filenamesRam Pai
Problem: It is impossible to feed filenames with the character colon because qemu interprets such names as a protocol. For example filename scsi:0, is interpreted as a protocol by name "scsi". This patch allows user to espace colon characters. For example the above filename can now be expressed either as 'scsi\:0' or as file:scsi:0 anything following the "file:" tag is interpreted verbatin. However if "file:" tag is omitted then any colon characters in the string must be escaped using backslash. Here are couple of examples: scsi\:0\:abc is a local file scsi:0:abc http\://myweb is a local file by name http://myweb file:scsi:0:abc is a local file scsi:0:abc file:http://myweb is a local file by name http://myweb Signed-off-by: Ram Pai <linuxram@us.ibm.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-14SSP bus frameworkPaul Brook
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-14Basic qdev infrastructure.Paul Brook
Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-14Constructor supportAnthony Liguori
Allow devices/drivers to register themselves via constructors. Destructors are not needed (can be registered from a constructor) and "priority" has been renamed and changed to an enum for clarity. Signed-off-by: Paul Brook <paul@codesourcery.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-13Include assert.h from qemu-common.hPaul Brook
Include assert.h from qemu-common.h and remove other direct uses. cpu-all.h still need to include it because of the dyngen-exec.h hacks Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-05-10Follow coding conventionsPaul Brook
Remove explicit struct qualifiers and rename structure types. Signed-off-by: Paul Brook <paul@codesourcery.com>
2009-04-24qemu: introduce qemu_cpu_kick (Marcelo Tosatti)aliguori
To notify cpu of pending interrupt. Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7243 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-24qemu: introduce qemu_init_vcpu (Marcelo Tosatti)aliguori
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7242 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-24qemu: create helper for event notification (Marcelo Tosatti)aliguori
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7236 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-28add qemu_iovec_init_external (Christoph Hellwig)aliguori
Allow to initialize a QEMUIOVector from an externally allocated iovec. qiov->nalloc is initialized to -1 to indicate external storage for qiov->iov and all functions dealing with memory management assert on the iovec beeing an internally managed first. Signed-off-by: Christoph Hellwig <hch@lst.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6902 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13DisplayAllocator interface (Stefano Stabellini)aliguori
Hi all, this patch adds a DisplayAllocator interface that allows display frontends (sdl in particular) to provide a preallocated display buffer for the graphical backend to use. Whenever a graphical backend cannot use qemu_create_displaysurface_from because its own internal pixel format cannot be exported directly (text mode or graphical mode with color depth 8 or 24), it creates another display buffer in memory using qemu_create_displaysurface and does the conversion. This new buffer needs to be blitted into the sdl surface buffer every time we need to update portions of the screen. We can avoid this using the DisplayAllocator interace: sdl provides its own implementation of qemu_create_displaysurface, giving back the sdl surface buffer directly (as we used to do before the DisplayState changes). Since the buffer returned by sdl could be in bgr format we need to put back in the handlers of that case. This approach is good if the two following conditions are true: 1) the sdl surface is a software surface that resides in main memory; 2) the host display color depth is either 16 or 32 bpp. If first condition is false we can have bad performances using sdl and vnc together. If the second condition is false performances are certainly not going to improve but they shouldn't get worse either. The first condition is always true, at least on linux/X11 systems; but I believe is true also on other platforms. The second condition is true in the vast majority of the cases. This patch should also have the good side effect of solving the sdl 2D slowness malc was reporting on MacOS, because SDL_BlitSurface is not going to be called anymore when the guest is in text mode or 24bpp. However the root problem is still present so I suspect we may still see some slowness on MacOS when the guest is in 32 or 16 bpp. Signed-off-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6839 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-08Fix windows build and clean up use of <windows.h>aliguori
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
2009-03-05monitor: Rework API (Jan Kiszka)aliguori
Refactor the monitor API and prepare it for decoupled terminals: term_print functions are renamed to monitor_* and all monitor services gain a new parameter (mon) that will once refer to the monitor instance the output is supposed to appear on. However, the argument remains unused for now. All monitor command callbacks are also extended by a mon parameter so that command handlers are able to pass an appropriate reference to monitor output services. For the case that monitor outputs so far happen without clearly identifiable context, the global variable cur_mon is introduced that shall once provide a pointer either to the current active monitor (while processing commands) or to the default one. On the mid or long term, those use case will be obsoleted so that this variable can be removed again. Due to the broad usage of the monitor interface, this patch mostly deals with converting users of the monitor API. A few of them are already extended to pass 'mon' from the command handler further down to internal functions that invoke monitor_printf. At this chance, monitor-related prototypes are moved from console.h to a new monitor.h. The same is done for the readline API. Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6711 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-05Add qemu_iovec_reset() (Avi Kivity)aliguori
Add a helper to zero out an existing iovec. Removes the need to deallocate and reallocate it. Signed-off-by: Avi Kivity <avi@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6523 c046a42c-6fe2-441c-8c8c-71466251a162
2009-02-01Replace noreturn with QEMU_NORETURNmalc
Thanks to Robert Riebisch for analysis [1] [1] http://marc.info/?l=qemu-devel&m=123352293319271&w=2 git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6492 c046a42c-6fe2-441c-8c8c-71466251a162
2009-01-26qemu iovec: keep track of total size, allow partial copies (Gerd Hoffman)aliguori
Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6448 c046a42c-6fe2-441c-8c8c-71466251a162
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