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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.
c74b97156f
For whatever reason, the kernel allows you to create a regular file named /dev/sdc.12345; although this file will disappear the next time devtmpfs is remounted. If you let libvirt generate the name of the external snapshot for a disk image originally using the block device /dev/sdc, then the domain will be rendered unbootable once the qcow2 file is lost on the next devtmpfs remount. In this case, the user should have used 'virsh snapshot-create --xmlfile' or 'virsh snapshot-create-as --diskspec' to specify the name for the qcow2 file in a sane location, rather than relying on libvirt generating a name that is most likely to be wrong. We can help avoid naive mistakes by enforcing that the user provide the external name for any backing file that is not a regular file. * src/conf/domain_conf.c (virDomainSnapshotAlignDisks): Only generate names if backing file exists as regular file. Reported by MATSUDA Daiki. |
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| .gnulib@e56e96fe20 | ||
| daemon | ||
| docs | ||
| examples | ||
| gnulib | ||
| include | ||
| m4 | ||
| po | ||
| python | ||
| src | ||
| tests | ||
| tools | ||
| .dir-locals.el | ||
| .gitignore | ||
| .gitmodules | ||
| .mailmap | ||
| AUTHORS | ||
| autobuild.sh | ||
| autogen.sh | ||
| bootstrap | ||
| bootstrap.conf | ||
| cfg.mk | ||
| ChangeLog-old | ||
| configure.ac | ||
| COPYING.LIB | ||
| HACKING | ||
| libvirt.pc.in | ||
| libvirt.spec.in | ||
| Makefile.am | ||
| Makefile.nonreentrant | ||
| mingw32-libvirt.spec.in | ||
| README | ||
| README-hacking | ||
| TODO | ||
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>