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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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Daniel P. Berrange 99123ba012 Fix QEMU cpu affinity at startup to include all threads 
The QEMU cpu affinity is used in NUMA scenarios to ensure that
guest memory is allocated from a specific node. Normally memory
is allocate on demand in vCPU threads, but when using hugepages
the initial thread leader allocates memory upfront. libvirt was
not setting affinity of the thread leader, or I/O threads. This
patch changes the code to set the process affinity in between
the fork()/exec() of QEMU. This ensures that every single QEMU
thread gets the affinity

* src/qemu/qemu_driver.c: Set affinity on entire QEMU process
  at startup
2010-03-30 12:03:37 +01:00
.gnulib@4f01268d0c build: update gnulib 2010-03-26 19:16:37 +01:00
build-aux build: update gnulib 2010-03-26 19:16:37 +01:00
daemon Add the script hook support to the libvirt daemon 2010-03-29 18:21:04 +02:00
docs Add disk error policy to domain XML 2010-03-26 16:35:18 -04:00
examples Add some examples filters 2010-03-26 18:01:17 +00:00
include Fix a merge error leftover 2010-03-29 18:27:12 +02:00
m4 build: don't use "test cond1 -o cond2": it's not portable 2010-03-25 09:28:24 +01:00
po Add hook utilities 2010-03-29 18:21:04 +02:00
proxy build: consistently indent preprocessor directives 2010-03-09 19:22:28 +01:00
python Core driver implementation with ebtables support 2010-03-26 18:01:16 +00:00
src Fix QEMU cpu affinity at startup to include all threads 2010-03-30 12:03:37 +01:00
tests Add disk error policy to domain XML 2010-03-26 16:35:18 -04:00
tools virsh: support VISUAL, and allow metacharacters in EDITOR 2010-03-29 16:38:51 -06:00
.gitignore maint: sort .gitignore 2010-02-23 21:32:04 +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 Updating the commiters list 2010-03-30 11:32:06 +02:00
autobuild.sh Enable ESX driver build on Mingw32 2009-07-31 16:15:51 +01:00
autogen.sh build: don't lose prior configure args on autogen.sh 2010-03-26 19:16:37 +01:00
bootstrap maint: relax git minimum version 2010-02-24 14:29:27 -05:00
bootstrap.conf bootstrap: Enable copy-mode for MinGW builds 2010-03-23 02:12:07 +01:00
cfg.mk build: update gnulib 2010-03-26 19:16:37 +01:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.ac Add some examples filters 2010-03-26 18:01:17 +00:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING doc: fix typos in hacking.html.in; mark HACKING as read-only 2010-03-09 18:18:20 +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 Fix logroate rpm build breakage 2010-03-18 13:50:08 +01:00
Makefile.am Add some examples filters 2010-03-26 18:01:17 +00:00
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 maint: relax git minimum version 2010-02-24 14:29:27 -05:00
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>