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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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77fdd82e51
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Joao Martins 77fdd82e51 libxl: implement virDomainInterfaceStats 
Introduce support for domainInterfaceStats API call for querying
network interface statistics. Consequently it also enables the use of
`virsh domifstat <dom> <interface name>` command plus seeing the
interfaces names instead of "-" when doing `virsh domiflist <dom>`.

After successful guest creation we fill the network interfaces names
based on domain, device id and append suffix if it's emulated in the
following form: vif<domid>.<devid>[-emu].  We extract the network
interfaces info from the libxl_domain_config object in
libxlDomainCreateIfaceNames() to generate ifname. On domain cleanup we
also clear ifname, in case it was set by libvirt (i.e. being prefixed
with "vif"). We also skip these two steps in case the name of the
interface was manually inserted by the administrator. Since the
introduction of netprefix (commit a040ba9), ifnames with a registered
prefix will be freed on virDomain{Obj,Def}Format*, thus eliminating
the migration issues observed with the reverted commit d2e5538 whereas
source and destination would have the same ifname.

For getting the interface statistics we resort to virNetInterfaceStats
and let libvirt handle the platform specific nits. Note that the
latter is not yet supported in FreeBSD.

Signed-off-by: Joao Martins <joao.m.martins@oracle.com>
2016-02-24 14:28:57 -07:00
.gnulib@6cc32c63e8 maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
build-aux bracket-spacing: Add syntax-check for unnecessary curly brackets 2014-11-14 17:13:36 +01:00
daemon adminDaemonListServers: Don't leak @srv_names array 2016-02-22 07:25:18 +01:00
docs docs: Try harder to uninstall 2016-02-23 12:05:01 +01:00
examples domsuspend: Fix warning on mingw build 2016-02-12 16:36:34 +01:00
gnulib maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
include admin: Introduce adminDaemonConnectListServers API 2016-02-17 12:46:34 +01:00
m4 Fix '-pie' build with clang 2016-02-09 13:29:53 +01:00
po admin: Introduce adminDaemonConnectListServers API 2016-02-17 12:46:34 +01:00
src libxl: implement virDomainInterfaceStats 2016-02-24 14:28:57 -07:00
tests tests: Fix typo oaque -> opaque 2016-02-23 10:36:13 +01:00
tools cmdSaveImageEdit: Prefer VSH_EXCLUSIVE_OPTIONS over by hand check 2016-02-22 16:56:07 +01:00
.ctags maint: Make ctags work out of the box 2013-07-18 08:47:21 +02:00
.dir-locals.el build: avoid tabs that failed syntax-check 2012-09-06 09:43:46 -06:00
.gitignore virt-admin: Introduce first working skeleton 2015-11-30 09:44:28 +01:00
.gitmodules make .gnulib a submodule 2009-07-08 16:17:51 +02:00
.mailmap maint: update .mailmap for recent contributions 2015-03-20 06:17:55 -06:00
AUTHORS.in Change maintainers list 2016-02-12 13:10:05 +03:00
autobuild.sh Disable libvirtd by default when building on Win32 2014-04-29 11:30:32 +01:00
autogen.sh maint: improve usage of autogen's --no-git 2015-02-06 11:35:29 -07:00
bootstrap maint: update to latest gnulib 2016-01-04 13:56:35 -07:00
bootstrap.conf bootstrap: Don't require python-config 2015-08-06 14:35:14 +02:00
cfg.mk tests: Allow use of close() in mock libraries 2016-02-11 18:24:31 +01:00
ChangeLog-old Fix typos in src/* 2014-04-21 16:49:08 -06:00
config-post.h build: fix build of virt-login-shell on systems with older gnutls 2013-10-22 09:41:50 -06:00
configure.ac qemu: Kill VIR_WRAPPER_SHELL_PREFIX 2016-02-17 17:27:02 +01:00
COPYING maint: follow recommended practice for using LGPL 2013-05-20 14:15:21 -06:00
COPYING.LESSER maint: Remove control characters from LGPL license file 2015-09-25 09:16:24 +02:00
HACKING maint: document use of zanata for translations 2015-06-10 15:26:44 -06:00
libvirt-admin.pc.in Add libvirt-admin library 2015-06-16 13:46:20 +02:00
libvirt-lxc.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt-qemu.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.pc.in Add pkg-config files for libvirt-qemu & libvirt-lxc 2014-06-23 16:17:27 +01:00
libvirt.spec.in Spell VMware with a lowercase w 2016-02-15 15:35:48 +01:00
Makefile.am build: Kill tools/wireshark Makefiles 2016-01-12 11:30:08 -05:00
Makefile.nonreentrant maint: use LGPL correctly 2013-05-20 14:03:48 -06:00
mingw-libvirt.spec.in parallels: substitute parallels with vz spec file and Makefile 2015-06-17 15:07:55 +03:00
README Correct typos in the documentation (Atsushi SAKAI) 2008-01-24 10:15:13 +00:00
README-hacking docs: update README-hacking 2014-05-06 16:20:24 -06:00
run.in Add PKG_CONFIG_PATH to run.in script. 2014-06-26 14:32:35 +01:00
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>