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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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Chris Lalancette be34c3c7ef qemu: Fix race between device rebind and kvm cleanup 
Certain hypervisors (like qemu/kvm) map the PCI bar(s) on
the host when doing device passthrough.  This can lead to a race
condition where the hypervisor is still cleaning up the device while
libvirt is trying to re-attach it to the host device driver.  To avoid
this situation, we look through /proc/iomem, and if the hypervisor is
still holding onto the bar (denoted by the string in the matcher variable),
then we can wait around a bit for that to clear up.

v2: Thanks to review by DV, make sure we wait the full timeout per-device

Signed-off-by: Chris Lalancette <clalance@redhat.com>
2010-01-22 12:03:49 -05:00
.gnulib@146d914507 logging: confirm that we want to ignore a write error 2010-01-19 21:28:41 +01:00
build-aux Commit bootstrap .gitignore additions 2010-01-12 14:36:11 -05:00
daemon Make all bitfields unsigned ints to avoid unexpected values in casts 2010-01-20 16:33:02 +00:00
docs Add docs about new mailing list 2010-01-21 16:48:11 +01:00
examples gnulib added a new syntax-check test: use $(VAR), not @VAR@ 2010-01-18 09:50:08 +01:00
include Add new API virDomainMemoryStats to header and drivers 2009-12-20 13:28:42 +01:00
m4 remove all .cvsignore files 2009-07-08 16:17:51 +02:00
po Update polish translation and regenerate localizations 2010-01-22 10:02:16 +01:00
proxy gnulib added a new syntax-check test: use $(VAR), not @VAR@ 2010-01-18 09:50:08 +01:00
python Add virConnectGetVersion Python API 2010-01-22 11:01:09 +01:00
src qemu: Fix race between device rebind and kvm cleanup 2010-01-22 12:03:49 -05:00
tests fix "make distcheck" failure 2010-01-21 15:24:15 +01:00
tools Document cpu-compare command in virsh man page 2010-01-20 16:23:05 +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_readlink Add a rule to check for uses of readlink. 2010-01-22 09:42:35 -05:00
.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 Add Jiri Denemark <jdenemar@redhat.com> to commiters 2010-01-19 14:41:19 +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 logging: confirm that we want to ignore a write error 2010-01-19 21:28:41 +01:00
cfg.mk Add a rule to check for uses of readlink. 2010-01-22 09:42:35 -05:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.in Change detection of xen so that it's actually automatic rather than forced. 2010-01-18 02:12:48 +01:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING Replace old CVS references with GIT 2010-01-08 18:08:22 +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 Release of libvirt-0.7.5 2009-12-23 17:00:22 +01:00
Makefile.am add AppArmor test and examples to dist 2009-12-14 13:40:42 +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>