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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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9c21b44131
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Eric Blake 9c21b44131 snapshot: wire up live qemu disk snapshots 
Lots of earlier patches led up to this point - the qemu snapshot_blkdev
monitor command can now be controlled by libvirt!  Well, insofar as
SELinux doesn't prevent qemu from open(O_CREAT) on the files.  There's
still some followup work before things work with SELinux enforcing,
but this patch is big enough to post now.

There's still room for other improvements, too (for example, taking a
disk snapshot of an inactive domain, by using qemu-img for both internal
and external snapshots; wiring up delete and revert control, including
additional flags from my RFC; supporting active QED disk snapshots;
supporting per-storage-volume snapshots such as LVM or btrfs snapshots;
etc.).  But this patch is the one that proves the new XML works!

* src/qemu/qemu_driver.c (qemuDomainSnapshotCreateXML): Wire in
active disk snapshots.
(qemuDomainSnapshotDiskPrepare)
(qemuDomainSnapshotCreateDiskActive)
(qemuDomainSnapshotCreateSingleDiskActive): New functions.
2011-09-05 07:03:05 -06:00
.gnulib@a6b16b69fe build: fix compilation on mingw64 2011-08-19 07:20:10 -06:00
daemon libvirtd: create run dir when running at non-root user 2011-09-01 20:32:10 -06:00
docs snapshot: also support disks by path 2011-09-05 07:03:04 -06:00
examples snapshot: better events when starting paused 2011-09-02 10:00:06 -06:00
gnulib freebsd: Fix build problem due to picking up the wrong libvirt.h 2011-07-29 07:35:54 -06:00
include snapshot: add flag for requesting disk snapshot 2011-09-05 07:03:04 -06:00
m4 tests: Lower stack usage below 4096 bytes 2011-04-30 19:59:52 +02:00
po hyperv: Add basic driver for Microsoft Hyper-V 2011-08-26 17:52:55 +02:00
python Add public API for getting migration speed 2011-09-01 11:26:21 -06:00
src snapshot: wire up live qemu disk snapshots 2011-09-05 07:03:05 -06:00
tests snapshot: wire up disk-only flag to snapshot-create 2011-09-05 07:03:04 -06:00
tools snapshot: wire up disk-only flag to snapshot-create 2011-09-05 07:03:04 -06:00
.dir-locals.el maint: let emacs avoid tabs in rng files 2011-08-13 08:56:26 -06:00
.gitignore hyperv: Add OpenWSMAN based client for the Hyper-V WMI API 2011-08-26 17:52:55 +02:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap Change my email domain 2011-09-01 16:13:34 -06:00
AUTHORS Check for source conflicts in storage pools 2011-09-05 15:52:03 +08:00
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: fix compilation on mingw64 2011-08-19 07:20:10 -06:00
bootstrap.conf Add API for duplicating a socket/client file descriptor 2011-08-15 15:21:26 +02:00
cfg.mk hyperv: Add driver skeleton 2011-08-26 17:52:55 +02:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.ac storage: Add mkfs and libblkid to build system 2011-09-02 21:16:50 +08:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING build: rename files.h to virfile.h 2011-07-21 10:34:51 -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 snapshot: update rng to support full domain in xml 2011-09-03 08:12:13 -06:00
Makefile.am maint: add missing copyright notices 2011-07-28 15:01:17 -06:00
Makefile.nonreentrant Ban use of all inet_* functions 2010-10-22 11:59:23 +01:00
mingw32-libvirt.spec.in snapshot: update rng to support full domain in xml 2011-09-03 08:12:13 -06:00
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>