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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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5de41c06a4
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Paolo Bonzini 5de41c06a4 retrieve paused/running state at migration start 
This patch fixes the bug where paused/running state is not
transmitted during migration.  As a result, in the QEMU driver
for example the machine was always started on the destination
end.

In order to do so, just read the state and if it is appropriate and
set the VIR_MIGRATE_PAUSED flag.

* src/libvirt.c (virDomainMigrateVersion1, virDomainMigrateVersion2):
  Automatically add VIR_MIGRATE_PAUSED when appropriate.
* src/xen/xend_internal.c (xenDaemonDomainMigratePerform): Give a nicer
  error message when migration of paused domains is attempted.
2009-12-11 10:06:05 +01:00
.gnulib@28db629d4f build: update gnulib submodule to latest 2009-09-09 12:11:29 +02:00
build-aux generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
daemon Add virBufferFreeAndReset() and replace free() 2009-12-10 00:00:50 +01:00
docs Small change of RNG syntax for domain 2009-12-11 08:46:11 +01:00
examples AppArmor updates of examples 2009-11-13 15:32:55 +01:00
include add virsh --suspend arg to migrate command 2009-12-11 10:00:44 +01:00
m4 remove all .cvsignore files 2009-07-08 16:17:51 +02:00
po Support for JSON mode monitor 2009-12-08 13:46:54 +00:00
proxy Support for <channel> in domain and QEmu backend 2009-11-05 15:31:03 +01:00
python Use AM_PATH_PYTHON and python-config to detect Python configuration 2009-12-08 23:40:20 +01:00
src retrieve paused/running state at migration start 2009-12-11 10:06:05 +01:00
tests Support for JSON mode monitor 2009-12-08 13:46:54 +00:00
tools add virsh --suspend arg to migrate command 2009-12-11 10:00:44 +01:00
.gitignore Remove some auto-generated files 2009-10-09 13:01:22 +01:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.hgignore Add qemuhelptest to .*ignore files 2009-06-16 14:06:48 +00:00
.x-sc_avoid_ctype_macros exempt gnulib from ctype-macros prohibition 2008-10-28 17:36:31 +00:00
.x-sc_avoid_if_before_free avoid a "make syntax-check" failure 2009-07-09 20:00:37 +02:00
.x-sc_avoid_write Fully asynchronous monitor I/O processing 2009-11-10 13:27:18 +00:00
.x-sc_m4_quote_check syntax-check: enable more checks 2009-02-03 13:08:36 +00:00
.x-sc_prohibit_asprintf add .x-sc_prohibit_asprintf 2008-12-23 13:40:42 +00:00
.x-sc_prohibit_gethostby Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_prohibit_gethostname Add a new syntax-check rule for gethostname. 2009-10-26 10:34:27 +01:00
.x-sc_prohibit_have_config_h maint: sync from coreutils 2009-01-29 18:06:19 +00:00
.x-sc_prohibit_HAVE_MBRTOWC maint: sync from coreutils 2009-01-29 18:06:19 +00:00
.x-sc_prohibit_nonreentrant Tighten up nonreentrant syntax-check. 2009-10-26 10:33:42 +01:00
.x-sc_prohibit_strcmp exempt gnulib/ from "make syntax-check" strcmp prohibition 2008-05-14 21:18:27 +00:00
.x-sc_prohibit_strcmp_and_strncmp Ignore docs/ directory for strcmp() syntax check 2009-11-23 11:58:13 +00:00
.x-sc_prohibit_strncpy Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_prohibit_VIR_ERR_NO_MEMORY Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_require_config_h Various syntax-check fixes. 2009-10-26 10:34:05 +01:00
.x-sc_require_config_h_first Misc syntax-check fixes 2009-09-21 14:41:47 +01:00
.x-sc_trailing_blank build: exempt *.ico files from the trailing blank check 2008-10-16 13:28:07 +00:00
acinclude.m4 remove all trailing blank lines 2009-07-16 15:06:42 +02:00
AUTHORS Fix cdub's surname spelling 2009-09-24 14:50:51 +01:00
autobuild.sh Enable ESX driver build on Mingw32 2009-07-31 16:15:51 +01:00
autogen.sh Add --system flag to autogen.sh to make it easy to build with right prefix 2009-12-07 14:13:53 +00:00
bootstrap Local file implementation of secret driver API 2009-09-11 14:54:46 +01:00
cfg.mk Add a new syntax-check rule for gethostname. 2009-10-26 10:34:27 +01:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.in remove all traces of lokkit support 2009-12-10 11:27:17 +00:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING Add virBufferFreeAndReset() and replace free() 2009-12-10 00:00:50 +01:00
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 remove all traces of lokkit support 2009-12-10 11:27:17 +00:00
Makefile.am Add a new syntax-check rule for gethostname. 2009-10-26 10:34:27 +01:00
Makefile.nonreentrant syntax-check: enable prohibit_nonreentrant 2009-02-05 16:28:41 +00:00
mingw32-libvirt.spec.in Make pki_check.sh into an installed & supported tool 2009-09-21 14:41:46 +01:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking build: automatically rerun ./bootstrap when needed 2009-07-10 13:39:28 +02:00
TODO Remove all trailing blanks; turn on the rule to detect them. 2008-02-05 19:27:37 +00:00

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>