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2009-07-16replace bdrv_{get, put}_buffer with bdrv_{load, save}_vmstateChristoph Hellwig1-39/+7
The VM state offset is a concept internal to the image format. Replace the old bdrv_{get,put}_buffer method that require an index into the image file that is constructed from the VM state offset and an offset into the vmstate with the bdrv_{load,save}_vmstate that just take an offset into the VM state. Signed-off-by: Christoph Hellwig <hch@lst.de> Reviewed-by: Kevin Wolf <kwolf@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-13exec-migration: handle EINTR in popen_get_buffer()Uri Lublin1-1/+8
Sometimes, upon interrupt, fread returns with no data, and the (incoming exec) migration fails. Fix by retrying on such a case. Signed-off-by: Uri Lublin <uril@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-06-13Fix mingw32 build warningsBlue Swirl1-1/+1
Work around buffer and ioctlsocket argument type signedness problems Suppress a prototype which is unused on mingw32 Expand a macro to avoid warnings from some GCC versions Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-06-09net: pass VLANClientState* as first arg to receive handlersMark McLoughlin1-1/+1
Give static type checking a chance to catch errors. Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-06-09net: re-name vc->fd_read() to vc->receive()Mark McLoughlin1-1/+1
VLANClientState's fd_read() handler doesn't read from file descriptors, it adds a buffer to the client's receive queue. Re-name the handlers to make things a little less confusing. Signed-off-by: Mark McLoughlin <markmc@redhat.com>
2009-05-27Allow monitor interaction when using migrate -execChris Lalancette1-1/+11
All, I've recently been playing around with migration via exec. Unfortunately, when starting the incoming qemu process with "-incoming exec:cmd", it suffers the same problem that -incoming tcp used to suffer; namely, that you can't interact with the monitor until after the migration has happened. This causes problems for libvirt usage of -incoming exec, since libvirt expects to be able to access the monitor ahead of time. This fairly simple patch allows you to access the monitor both before and after the migration has completed using exec. (note: developed/tested with qemu-kvm, but applies perfectly fine to qemu) Signed-off-by: Chris Lalancette <clalance@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22introduce set_rate_limit function for QEMUFileGlauber Costa1-8/+19
This patch converts the current callers of qemu_fopen_ops(). Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22Don't send all gratuitous packets at once.Gleb Natapov1-5/+19
Use timer to separate them in time. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-22Minimal ethernet frame length is 64 bytes.Gleb Natapov1-1/+2
Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-05-01Make sure not to fall through on error in loadvmAnthony Liguori1-0/+1
This is from the KVM tree Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-04-17Add unregister_savevm() (Mark McLoughlin)aliguori1-0/+16
Currently there's no way to unregister a savevm callback, so e.g. if a NIC is hot-unplugged and a savevm is issued, we'll segfault. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@7148 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-05create qemu_file_set_error (Glauber Costa)aliguori1-0/+5
This is mainly for consistency, since we don't want anything outside of savevm setting it explicitly. There are current no users of that in qemu tree, but there are potential candidates on kvm-userspace. And avi is a nice guy, let's be nice with him. Based on a patch by Yaniv Kamay Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6998 c046a42c-6fe2-441c-8c8c-71466251a162
2009-04-05Fix savevm after BDRV_FILE size enforcementaliguori1-6/+6
We now enforce that you cannot write beyond the end of a non-growable file. qcow2 files are not growable but we rely on them being growable to do savevm/loadvm. Temporarily allow them to be growable by introducing a new API specifically for savevm read/write operations. Reported-by: malc Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6994 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-13make qemu_announce_self handle non contiguous net tables (Marcelo Tosatti)aliguori1-1/+3
With hotplug nd_table might contain holes. Noticed by Eduardo Habkost. 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@6844 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-08Fix windows build and clean up use of <windows.h>aliguori1-0/+1
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 configureblueswir11-2/+2
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@6775 c046a42c-6fe2-441c-8c8c-71466251a162
2009-03-07Support for DragonFly BSD (Hasso Tepper)blueswir11-1/+1
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, staticblueswir11-12/+12
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
2009-03-05monitor: Rework API (Jan Kiszka)aliguori1-39/+44
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
2009-02-05toplevel: remove error handling from qemu_malloc() callers (Avi Kivity)aliguori1-19/+0
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@6531 c046a42c-6fe2-441c-8c8c-71466251a162
2008-12-11Fix handling of disk-only snapshots (Kevin Wolf)aliguori1-1/+10
When creating a snapshot with multiple qcow2 disks attached, the current behaviour is that qemu creates a disk snapshot on all of them and chooses one to write the VM state to. Despite having the state only in one image, loadvm tries to restore the VM state from the middle of nowhere if you run qemu a second time with only one of the other images attached. In the lucky case it will fail because there simply is no state, but it also can happen that it loads the state of a different snapshot (the one this new one is based upon). The fix is to write a zero VM state size to the images which don't contain the state, and check this in loadvm. I agree that you probably have to provoke such things intentionally to get in a state like this with qemu itself. However, with my second patch that adds snapshot support to qemu-img it could become a reasonable use case to have snapshots with and without VM states on the same image. Signed-off-by: Kevin Wolf <kwolf@suse.de> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5985 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11Split savevm code into savevm.caliguori1-0/+1245
This is pure code motion. The savevm code is all common code so we can build it once and share the object with all executables. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5700 c046a42c-6fe2-441c-8c8c-71466251a162
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