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2008-11-12Fix brown-paper-bag bugs from live-migration patch (Charles Duffy)aliguori
In TCP migration, prevent an endless loop trying to retrieve error status. In exec migration, set the close pointer in the FdMigrationState structure. Color me embarrassed. Signed-off-by: Charles Duffy <charles_duffy@messageone.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5713 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-11Reintroduce migrate-to-exec: support (Charles Duffy)aliguori
KVM's live migration support included support for exec: URLs, allowing system state to be written or received via an arbitrary popen()ed subprocess. This provides a convenient way to pipe state through a compression algorithm or an arbitrary network transport on its way to its destination, and a convenient way to write state to disk; libvirt's qemu driver currently uses migration to exec: targets for this latter purpose. This version of the patch refactors now-common code from migrate-tcp.c into migrate.c. Signed-off-by: Charles Duffy <Charles_Duffy@messageone.com> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5694 c046a42c-6fe2-441c-8c8c-71466251a162
2008-11-06Make sure to resume the monitor only after flushing out outstanding aliguori
network traffic. This was bug was reported by Chris Lalancette. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5640 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-25Fix GCC 4 signedness warningblueswir1
git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5533 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-24Fix whitespace in migration code.aliguori
Replace tabs with spaces. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5527 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-24Fix possibly SEGV in tcp migration error case.aliguori
Spotted by hpoussin. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5526 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-24Live migration for Win32 (Hervé Poussineau)aliguori
This patch fixes migration so that it works on Win32. This requires using socket specific calls since sockets cannot be treated like file descriptors on win32. Signed-off-by: Hervé Poussineau <hpoussin@reactos.org> Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5525 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-24Fix windows build after migration changesaliguori
The live migration code broke the windows build. As part of this change, I've switched the BIOS path to C:\Program Files\Qemu instead of /c/Program Files/Qemu. The later is only valid when launching from MSYS but the former is always valid. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5524 c046a42c-6fe2-441c-8c8c-71466251a162
2008-10-13Introduce TCP live migration protocolaliguori
This patch introduces a tcp protocol for live migration. It can be used as follows: qemu-system-x86_64 -hda ~/images/linux-test.img -monitor stdio <vm runs for a while> (qemu) migrate tcp:localhost:1025 On the same system: qemu-system-x86_64 -hda ~/images/linux-test.img -incoming tcp:localhost:1025 The monitor can be interacted with while waiting for an incoming live migration. Signed-off-by: Anthony Liguori <aliguori@us.ibm.com> git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@5478 c046a42c-6fe2-441c-8c8c-71466251a162