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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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175077fd70
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Laine Stump 175077fd70 Add XML config switch to enable/disable vhost-net support 
This patch is in response to

  https://bugzilla.redhat.com/show_bug.cgi?id=643050

The existing libvirt support for the vhost-net backend to the virtio
network driver happens automatically - if the vhost-net device is
available, it is always enabled, otherwise the standard userland
virtio backend is used.

This patch makes it possible to force whether or not vhost-net is used
with a bit of XML. Adding a <driver> element to the interface XML, eg:

     <interface type="network">
       <model type="virtio"/>
       <driver name="vhost"/>

will force use of vhost-net (if it's not available, the domain will
fail to start). if driver name="qemu", vhost-net will not be used even
if it is available.

If there is no <driver name='xxx'/> in the config, libvirt will revert
to the pre-existing automatic behavior - use vhost-net if it's
available, and userland backend if vhost-net isn't available.
2011-01-14 14:46:21 -05:00
.gnulib@4f2c339efd build: satisfy 'make syntax-check' regarding year change 2011-01-04 09:50:07 -07:00
daemon daemon: Fix core dumps if unix_sock_group is set 2011-01-10 11:01:46 +01:00
docs Add XML config switch to enable/disable vhost-net support 2011-01-14 14:46:21 -05:00
examples event-test: Simplify debug on/off 2011-01-10 14:44:04 -05:00
include virterror: avoid API breakage with vmware 2010-12-22 09:09:04 -07:00
m4 maint: update to latest gnulib 2010-11-17 10:13:12 -07:00
po Refactor the security drivers to simplify usage 2011-01-10 18:10:52 +00:00
python python: Use PyCapsule API if available 2011-01-10 15:18:05 -05:00
src Add XML config switch to enable/disable vhost-net support 2011-01-14 14:46:21 -05:00
tests qemu: move monitor device out of domain_conf common code 2011-01-14 09:54:26 -07:00
tools docs: clarify virsh setvcpus and setmem usage with active domains 2011-01-14 07:48:43 +11:00
.dir-locals.el misc: encode the Emacs suggstions from HACKING into a .dir-locals.el file 2010-11-01 10:22:58 -06:00
.gitignore Release of libvirt-0.8.7 2011-01-04 03:37:17 +01:00
.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 Introduce new APIs for spawning processes 2010-12-02 16:00:44 -07:00
.x-sc_bindtextdomain maint: update to latest gnulib 2010-11-17 10:13:12 -07:00
.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 util: add virVasprintf 2010-12-02 11:23:15 -07:00
.x-sc_prohibit_close build: enforce files.h usage 2010-11-24 15:23:43 -07:00
.x-sc_prohibit_empty_lines_at_EOF tests: test RHEL 6.0 qemu-kvm -help parsing 2010-12-13 16:30:02 -07:00
.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_sprintf maint: avoid remaining sprintf uses 2010-11-17 10:13:12 -07:00
.x-sc_prohibit_strcmp exempt gnulib/ from "make syntax-check" strcmp prohibition 2008-05-14 21:18:27 +00:00
.x-sc_prohibit_strncmp maint: tighten strncmp syntax check 2010-11-18 12:21:58 -07:00
.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_prohibit_xmlGetProp maint: prohibit most uses of xmlGetProp 2010-11-24 15:23:43 -07:00
.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 qemu: add set_password and expire_password monitor commands 2011-01-14 12:35:42 -07:00
autobuild.sh test: fix commandtest under autobuild.sh 2010-12-13 16:04:56 -07:00
autogen.sh build: require pkg-config for bootstrap 2010-10-05 13:54:39 -06:00
bootstrap maint: update to latest gnulib 2010-11-17 10:13:12 -07:00
bootstrap.conf build: restore mingw build 2011-01-12 17:46:29 -07:00
cfg.mk domain_conf: split source data out from ChrDef 2011-01-14 09:54:26 -07:00
ChangeLog-old generate ChangeLog from git logs into distribution tarball 2009-07-08 16:17:51 +02:00
configure.ac Add AM_MAINTAINER_MODE 2011-01-07 20:22:24 +01:00
COPYING.LIB remove all trailing blank lines 2009-07-16 15:06:42 +02:00
HACKING maint: document dislike of mismatched if/else bracing 2011-01-05 11:05:28 -07:00
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-0.8.7 2011-01-04 03:37:17 +01:00
Makefile.am maint: prohibit most uses of xmlGetProp 2010-11-24 15:23:43 -07:00
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>