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2009-10-27net: use qemu_send_packet_raw() in qemu_announce_self()Gleb Natapov
Use qemu_send_packet_raw to send gratuitous arp. This will ensure that vnet header is handled properly. Also, avoid sending the gratuitous packet to the guest. There doesn't appear to be any reason for doing that and the code will currently just crash if the NIC is not associated with a vlan. Signed-off-by: Gleb Natapov <gleb@redhat.com> Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27net: remove unused includes of if_tun.h and if_tap.hMark McLoughlin
Looks like these are just artifacts of vl.c being split up. Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27vmstate: Add VMSTATE_BUFFER_UNUSEDJuan Quintela
It allows to have 'things' in savevm format not backed in the device state Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27vmstate: add VMS_VARRAY_UINT16_UNSAFE (varrays with uint16 indexes)Juan Quintela
It don't check types. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27vmstate: Rename VMS_VARRAY to VMS_VARRAY_INT32Juan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27vmstate: add VMSTATE_UINT16_EQUAL[_V]Juan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27vnmstate: fix name for uint8_equalJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-27Send a RARP packet after migration.Nolan
Currently, after a migration qemu sends a broadcast packet to update switches' MAC->port mappings. Unfortunately, it picks a random (constant) ethertype and crosses its fingers that no one else is using it. This patch causes it to send a RARP packet instead. RARP was chosen for 2 reasons. One, it is always harmless, and will continue to be so even as new ethertypes are allocated. Two, it is what VMware ESX sends, so people who write filtering rules for switches already know about it. I also changed the code to send SELF_ANNOUNCE_ROUNDS packets, instead of SELF_ANNOUNCE_ROUNDS + 1, and added a simple backoff scheme. Signed-off-by: Nolan Leake <nolan <at> sigbus.net> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-15net: use qtailq for vlan and client listsMark McLoughlin
Patchworks-ID: 35507 Signed-off-by: Mark McLoughlin <markmc@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05vmstate: Add suppot for field_exist() testJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05vmstate: add support for arrays of pointersJuan Quintela
We need this to send arrays of timers Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05vmstate: add version_id argument to post_loadJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-10-05vmstate: remove const for put operationsJuan Quintela
In a later patch, we introduce pre_save() and post_save() functions. The whole point of that operation is to change things in the state. Without this patch, we have to remove the const qualifier in each use with a cast Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-12Fix sys-queue.h conflict for goodBlue Swirl
Problem: Our file sys-queue.h is a copy of the BSD file, but there are some additions and it's not entirely compatible. Because of that, there have been conflicts with system headers on BSD systems. Some hacks have been introduced in the commits 15cc9235840a22c289edbe064a9b3c19c5f49896, f40d753718c72693c5f520f0d9899f6e50395e94, 96555a96d724016e13190b28cffa3bc929ac60dc and 3990d09adf4463eca200ad964cc55643c33feb50 but the fixes were fragile. Solution: Avoid the conflict entirely by renaming the functions and the file. Revert the previous hacks. Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-12Include sys-queue.h early to override system queue definitions on BSDBlue Swirl
Signed-off-by: Blue Swirl <blauwirbel@gmail.com>
2009-09-11vmstate: add support for uint8_t equalJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11vmstate: Add pre/post_save() hooksJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11vmstate: Add pre_load() hookJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11vmstate: rename run_after_load() -> post_load()Juan Quintela
This naming was used in kvm tree, and is easier to remember Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11vmstate: add sensible arguments to vmstate_unregister()Juan Quintela
vmsd alone is not enugh, because we can have several structs saved with the same description (vmsd). Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-11Remove SaveVM v2 supportJuan Quintela
In previosu series I remove v2 support for RAM (that was the version that was supported when SaveVM v3 appeared). Now we can't load RAM for any image saved in SaveVM v2, we can as well remove SaveVM v2 entirely. Note: That SaveVM RAM was at v2 when General SaveVM support went from v2 to v3 makes talking about versions confusing at least Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-09savevm: Convert loadvm handlers list to LISTJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-09savevm: Convert savevm handlers list to TAILQJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-04monitor: Port handler_1 to use QDictLuiz Capitulino
This commit ports command handlers that receive one argument to use the new monitor's dictionary. Signed-off-by: Luiz Capitulino <lcapitulino@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-09-04VMState: Fix sub-structs versioningJuan Quintela
We can't check the version in a substruct, it is not stored anywhere Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support to run a function after loadJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support for int32_t check valueJuan Quintela
We read the saved value and check that it is less or equal than the one stored in the structure. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support for static sized buffers (uint_8)Juan Quintela
This patch adds support for static sized buffer and typecheks that the buffer is right. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support for variable sized arraysJuan Quintela
This patch add supports for variable sized arrays whose size is another field of the state. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support for int32_t check valueJuan Quintela
We read the saved value and check that it is the same that the one is stored in the structure. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support for structsJuan Quintela
This patch adds support for saving one VMStateDescription from other VMStateDescription. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support for arraysJuan Quintela
This patch adds support for saving arrays inside the struct Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add VMState support for pointersJuan Quintela
This patch adds support for saving pointers to values Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27New VMstate save/load infrastructureJuan Quintela
This patch introduces VMState infrastructure, to convert the save/load functions of devices to a table approach. This new approach has the following advantages: - it is type-safe - you can't have load/save functions out of sync - will allows us to have new interesting commands, like dump <device>, that shows all its internal state. - Just now, the only added type is arrays, but we can add structures. - Uses old load_state() function for loading old state. Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Add vmstate_load() and vmstate_save() functionsJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27Use return value from load_state() call backJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27make load_vmstate() return errorsJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27move do_loadvm() to monitor.cJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27split do_loadvm() into do_loadvm() and load_vmstate()Juan Quintela
do_loadvm() is now called from the monitor. load_vmstate() is called by do_loadvm() and when -loadvm command line is used. Command line don't have to play games with vmstop()/vmstart() Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-27add file descriptor migrationPaolo Bonzini
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Cc: Chris Lalancette <clalance@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-08-24unify popen/fopen qemu wrappersPaolo Bonzini
While reading Chris's code for fd migration I noticed the duplication between QEMUFilePopen and QEMUFileStdio. This fixes it, and makes qemu_fopen more similar qemu_popen. Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27rename HOST_BSD to CONFIG_BSDJuan Quintela
Signed-off-by: Juan Quintela <quintela@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-27kill drives_tableGerd Hoffmann
First step cleaning up the drives handling. This one does nothing but removing drives_table[], still it became seriously big. drive_get_index() is gone and is replaced by drives_get() which hands out DriveInfo pointers instead of a table index. This needs adaption in *tons* of places all over. The drives are now maintained as linked list. Signed-off-by: Gerd Hoffmann <kraxel@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16fix segfault in setting migration speedGlauber Costa
Hi, Whoever wrote this migrate_set_speed function is totally stupid. Any failed or completed migration keeps its state to allow probing of migration data, but has no associated file anymore. It is, thus, possible to crash qemu by calling migrate_set_speed after a migration is finished (or failed, or cancelled), but before another one starts. This patch fixes it. Signed-off-by: Glauber Costa <glommer@redhat.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>
2009-07-16replace bdrv_{get, put}_buffer with bdrv_{load, save}_vmstateChristoph Hellwig
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 Lublin
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 Swirl
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 McLoughlin
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 McLoughlin
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 Lalancette
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>
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