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Libvirt provides a portable, long term stable C API for managing the virtualization technologies provided by many operating systems. It includes support for QEMU, KVM, Xen, LXC, bhyve, Virtuozzo, VMware vCenter and ESX, VMware Desktop, Hyper-V, VirtualBox and the POWER Hypervisor.
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Osier Yang a73bbfc8be qemu: Remove the managed state file only if restoring succeeded 
1) Both "qemuDomainStartWithFlags" and "qemuAutostartDomain" try to
restore the domain from managedsave'ed image if it exists (by
invoking "qemuDomainObjRestore"), but it unlinks the image even
if restoring fails, which causes data loss. (This problem exists
for "virsh managedsave dom; virsh start dom").

The fix for is to unlink the managed state file only if restoring
succeeded.

2) For "virsh save dom; virsh restore dom;", it can cause data
corruption if one reuse the saved state file for restoring. Add
doc to tell user about it.

3) In "qemuDomainObjStart", if "managed_save" is NULL, we shouldn't
fallback to start the domain, skipping it to cleanup as a incidental
fix. Discovered by Eric.
2011-04-07 16:58:26 +08:00
.gnulib@dec3475763 virsh: fix mingw failure on creating nonblocking pipe 2011-04-01 08:43:10 -06:00
daemon Fix typo in systemtap tapset directory name 2011-04-05 17:44:12 +01:00
docs Release of libvirt-0.9.0 2011-04-04 20:15:45 +08:00
examples Fix domain events C example on Win32 2011-03-31 16:01:49 +01:00
include Add public APIs for storage volume upload/download 2011-03-29 12:17:33 +01:00
m4 Fix build for older gcc 2011-04-06 15:05:45 -06:00
po Release of libvirt-0.9.0 2011-04-04 20:15:45 +08:00
python python: Use hardcoded python path in libvirt.py 2011-03-14 12:37:19 +01:00
src qemu: Remove the managed state file only if restoring succeeded 2011-04-07 16:58:26 +08:00
tests tests: fix recent test failures 2011-04-06 10:05:14 -06:00
tools qemu: Remove the managed state file only if restoring succeeded 2011-04-07 16:58:26 +08:00
.dir-locals.el maint: make spacing in .sh files easier 2011-03-14 21:57:42 -06:00
.gitignore Remove acinclude.m4 file 2011-04-05 11:39:44 +01:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: update an email address preference 2010-08-10 08:13:22 -06:00
AUTHORS Allow relative path for qemu backing file 2011-04-04 16:37:58 -06:00
autobuild.sh Remove the Open Nebula driver 2011-03-28 14:09:11 +01:00
autogen.sh build: avoid problems with autogen.sh runs from tarball 2011-02-12 06:28:28 -07:00
bootstrap build: nuke all .x-sc* files, and fix VPATH syntax-check 2011-03-23 15:51:32 -06:00
bootstrap.conf Use gnulib's manywarnings & warnings modules 2011-04-05 11:39:35 +01:00
cfg.mk Fix domain events C example on Win32 2011-03-31 16:01:49 +01:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.ac Use gnulib's manywarnings & warnings modules 2011-04-05 11:39:35 +01:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING docs: mention C89 syntax preferences 2011-03-30 13:51:22 -06:00
libvirt.pc.in * libvirt.pc.in: applied patch from Daniel Berrange to fix --cflags 2006-03-24 13:18:12 +00:00
libvirt.spec.in Fix typo in systemtap tapset directory name 2011-04-05 17:44:12 +01:00
Makefile.am build: nuke all .x-sc* files, and fix VPATH syntax-check 2011-03-23 15:51:32 -06:00
Makefile.nonreentrant Ban use of all inet_* functions 2010-10-22 11:59:23 +01:00
mingw32-libvirt.spec.in Remove iohelper on Win32 since it is not required 2011-03-31 17:41:51 +01:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking maint: relax git minimum version 2010-02-24 14:29:27 -05:00
TODO Update todo list file to point at bugzilla/website 2010-10-13 16:45:26 +01:00

README 

         LibVirt : simple API for virtualization

  Libvirt is a C toolkit to interact with the virtualization capabilities
of recent versions of Linux (and other OSes). It is free software
available under the GNU Lesser General Public License. Virtualization of
the Linux Operating System means the ability to run multiple instances of
Operating Systems concurrently on a single hardware system where the basic
resources are driven by a Linux instance. The library aim at providing
long term stable C API initially for the Xen paravirtualization but
should be able to integrate other virtualization mechanisms if needed.

Daniel Veillard <veillard@redhat.com>