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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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41b2cee2a8
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Lai Jiangshan 41b2cee2a8 qemu_driver: add virCgroupMounted 
When we mount any cgroup without "-o devices", we will fail to start vms:

error: Failed to start domain vm1
error: Unable to deny all devices for vm1: No such file or directory

When we mount any cgroup without "-o cpu", we will fail to get schedinfo:
Scheduler      : posix
error: unable to get cpu shares tunable: No such file or directory

We should only use the cgroup controllers which are mounted on host.
So I add virCgroupMounted() for qemuCgroupControllerActive()

Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
2010-10-29 09:46:25 -06:00
.gnulib@cac3889c18 build: use latest gnulib, for ignore-value fix 2010-10-15 16:13:23 -06:00
build-aux build: update gnulib 2010-03-26 19:16:37 +01:00
daemon Remove all auditing hooks from libvirtd dispatch code 2010-10-27 17:03:21 +01:00
docs Release of libvirt-0.8.5 2010-10-29 16:54:07 +02:00
examples Include socket address in client probe data 2010-10-22 12:00:45 +01:00
include Rename VIR_DOMAIN_SWAP_HARD_LIMIT to VIR_DOMAIN_MEMORY_SWAP_HARD_LIMIT 2010-10-20 19:33:11 +02:00
m4 build: restore operation of bit-rotted 'make cov' 2010-07-29 13:41:25 -06:00
po Release of libvirt-0.8.5 2010-10-29 16:54:07 +02:00
proxy proxy: Fix undefined reference to virClose 2010-10-19 16:47:35 +02:00
python Fix several minor problems introduced by the memtune series 2010-10-12 21:24:11 +02:00
src qemu_driver: add virCgroupMounted 2010-10-29 09:46:25 -06:00
tests qemu: don't use %.3d format for bus/addr of USB devices 2010-10-26 10:19:07 -06:00
tools virsh: improve the help description for managedsave and start 2010-10-29 11:52:31 +11:00
.gitignore build: fix shell detection bug 2010-10-26 15:55:12 -06:00
.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
.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_po_check build: avoid false positive syntax-check failure 2010-10-19 09:28:35 -06:00
.x-sc_prohibit_always_true_header_tests build: update gnulib 2010-05-06 14:35:38 -06:00
.x-sc_prohibit_asprintf add .x-sc_prohibit_asprintf 2008-12-23 13:40:42 +00:00
.x-sc_prohibit_empty_lines_at_EOF maint: fix syntax-check failure of previous patch 2010-10-26 15:50:19 -06:00
.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_gettext_noop build: fix syntax-check problems 2010-04-12 16:43:05 -06:00
.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 Avoid checking against strncpy in virsh.c 2010-10-12 19:26:10 +02:00
.x-sc_prohibit_test_minus_ao build: fix syntax-check problems 2010-04-12 16:43:05 -06:00
.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
.x-sc_unmarked_diagnostics build: import latest gnulib 2010-04-02 10:18:55 -06:00
acinclude.m4 maint: turn on gcc logical-op checking 2010-07-28 15:25:36 +02:00
AUTHORS audit: printf warning fix 2010-10-28 11:23:42 -06:00
autobuild.sh Add dtrace static probes in libvirtd 2010-10-22 12:00:39 +01:00
autogen.sh build: require pkg-config for bootstrap 2010-10-05 13:54:39 -06:00
bootstrap build: fix mingw build 2010-10-14 05:51:01 -06:00
bootstrap.conf build: require pkg-config for bootstrap 2010-10-05 13:54:39 -06:00
cfg.mk maint: fix syntax-check failure of previous patch 2010-10-26 15:50:19 -06:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.ac Release of libvirt-0.8.5 2010-10-29 16:54:07 +02:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING Introduce VIR_CLOSE to be used rather than close() 2010-10-19 10:23:51 -04:00
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-0.8.5 2010-10-29 16:54:07 +02:00
Makefile.am maint: fix syntax-check failure of previous patch 2010-10-26 15:50:19 -06:00
Makefile.nonreentrant Ban use of all inet_* functions 2010-10-22 11:59:23 +01:00
mingw32-libvirt.spec.in Add dtrace static probes in libvirtd 2010-10-22 12:00:39 +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>