This patch introduces support of setting emulator's period and
quota to limit cpu bandwidth when the vm starts. Also updates
XML Schema for new entries and docs.
This patch adds a new xml element <emulatorpin>, which is a sibling
to the existing <vcpupin> element under the <cputune>, to pin emulator
threads to specified physical CPUs.
Signed-off-by: Tang Chen <tangchen@cn.fujitsu.com>
Signed-off-by: Hu Tao <hutao@cn.fujitsu.com>
A hypervisor may allow to override the disk geometry of drives.
Qemu, as an example with cyls=,heads=,secs=[,trans=].
This patch extends the domain config to allow the specification of
disk geometry with libvirt.
Signed-off-by: J.B. Joret <jb@linux.vnet.ibm.com>
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
This patch updates the domain and capability XML parser and formatter to
support more than one "seclabel" element for each domain and device. The
RNG schema and the tests related to this are also updated by this patch.
Signed-off-by: Marcelo Cerri <mhcerri@linux.vnet.ibm.com>
This patch updates the network driver to properly utilize the new
attributes/elements that are now in virNetworkDef
Signed-off-by: Shradha Shah <sshah@solarflare.com>
Signed-off-by: Laine Stump <laine@laine.org>
This patch introduces the new forward mode='hostdev' along with
attribute managed. Includes updates to the network RNG and new xml
parser/formatter code.
Signed-off-by: Shradha Shah <sshah@solarflare.com>
The following config elements now support a <vlan> subelements:
within a domain: <interface>, and the <actual> subelement of <interface>
within a network: the toplevel, as well as any <portgroup>
Each vlan element must have one or more <tag id='n'/> subelements. If
there is more than one tag, it is assumed that vlan trunking is being
requested. If trunking is required with only a single tag, the
attribute "trunk='yes'" should be added to the toplevel <vlan>
element.
Some examples:
<interface type='hostdev'/>
<vlan>
<tag id='42'/>
</vlan>
<mac address='52:54:00:12:34:56'/>
...
</interface>
<network>
<name>vlan-net</name>
<vlan trunk='yes'>
<tag id='30'/>
</vlan>
<virtualport type='openvswitch'/>
</network>
<interface type='network'/>
<source network='vlan-net'/>
...
</interface>
<network>
<name>trunk-vlan</name>
<vlan>
<tag id='42'/>
<tag id='43'/>
</vlan>
...
</network>
<network>
<name>multi</name>
...
<portgroup name='production'/>
<vlan>
<tag id='42'/>
</vlan>
</portgroup>
<portgroup name='test'/>
<vlan>
<tag id='666'/>
</vlan>
</portgroup>
</network>
<interface type='network'/>
<source network='multi' portgroup='test'/>
...
</interface>
IMPORTANT NOTE: As of this patch there is no backend support for the
vlan element for *any* network device type. When support is added in
later patches, it will only be for those select network types that
support setting up a vlan on the host side, without the guest's
involvement. (For example, it will be possible to configure a vlan for
a guest connected to an openvswitch bridge, but it won't be possible
to do that for one that is connected to a standard Linux host bridge.)
<portgroup> allows a <bandwidth> element, but the schema didn't have
this. Since this makes for multiple elements in portgroup, they must
be interleaved.
<interface type='bridge'> needs to allow <virtualport> elements
for openvswitch, but the schema didn't allow this.
Let's change URI to parallels:///system. Parallels Server supports
creating VMs from non-privileged accounts, but it's not main usage
scenario and it may be forbidden in the future.
Also containers, which will be supported by the driver, can be managed
only by root, so /system path is more suitable for this driver.
Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
Following commit added suport the CPU quota/period to the LXC driver.
Update the documentation to reflect that.
commit d9724a81b3
Author: Daniel P. Berrange <berrange@redhat.com>
Date: Thu Nov 10 12:16:26 2011 +0000
Add support for CPU quota/period to LXC driver
Signed-off-by: Sukadev Bhattiprolu <sukadev@linux.vnet.ibm.com>
Just as each physical device used by a network has a connections
counter, now each network has a connections counter which is
incremented once for each guest interface that connects using this
network.
The count is output in the live network XML, like this:
<network connections='20'>
...
</network>
It is read-only, and for informational purposes only - it isn't used
internally anywhere by libvirt.
One of the original ideas behind allowing a <virtualport> in an
interface definition as well as in the <network> definition *and*one
or more <portgroup>s within the network, was that guest-specific
parameteres (like instanceid and interfaceid) could be given in the
interface's virtualport, and more general things (portid, managerid,
etc) could be given in the network and/or portgroup, with all the bits
brought together at guest startup time and combined into a single
virtualport to be used by the guest. This was somehow overlooked in
the implementation, though - it simply picks the "most specific"
virtualport, and uses the entire thing, with no attempt to merge in
details from the others.
This patch uses virNetDevVPortProfileMerge3() to combine the three
possible virtualports into one, then uses
virNetDevVPortProfileCheck*() to verify that the resulting virtualport
type is appropriate for the type of network, and that all the required
attributes for that type are present.
An example of usage is this: assuming a <network> definitions on host
ABC of:
<network>
<name>testA</name>
...
<virtualport type='openvswitch'/>
...
<portgroup name='engineering'>
<virtualport>
<parameters profileid='eng'/>
</virtualport>
</portgroup>
<portgroup name='sales'>
<virtualport>
<parameters profileid='sales'/>
</virtualport>
</portgroup>
</network>
and the same <network> on host DEF of:
<network>
<name>testA</name>
...
<virtualport type='802.1Qbg'>
<parameters typeid="1193047" typeidversion="2"/>
</virtualport>
...
<portgroup name='engineering'>
<virtualport>
<parameters managerid="11"/>
</virtualport>
</portgroup>
<portgroup name='sales'>
<virtualport>
<parameters managerid="55"/>
</virtualport>
</portgroup>
</network>
and a guest <interface> definition of:
<interface type='network'>
<source network='testA' portgroup='sales'/>
<virtualport>
<parameters instanceid="09b11c53-8b5c-4eeb-8f00-d84eaa0aaa4f"
interfaceid="09b11c53-8b5c-4eeb-8f00-d84eaa0aaa4f"\>
</virtualport>
...
</interface>
If the guest was started on host ABC, the <virtualport> used would be:
<virtualport type='openvswitch'>
<parameters interfaceid='09b11c53-8b5c-4eeb-8f00-d84eaa0aaa4f'
profileid='sales'/>
</virtualport>
but if that guest was started on host DEF, the <virtualport> would be:
<virtualport type='802.1Qbg'>
<parameters instanceid="09b11c53-8b5c-4eeb-8f00-d84eaa0aaa4f"
typeid="1193047" typeidversion="2"
managerid="55"/>
</virtualport>
Additionally, if none of the involved <virtualport>s had a specified type
(this includes cases where no virtualport is given at all),
Until now, all attributes in a <virtualport> parameter list that were
acceptable for a particular type, were also required. There were no
optional attributes.
One of the aims of supporting <virtualport> in libvirt's virtual
networks and portgroups is to allow specifying the group-wide
parameters in the network's virtualport, and merge that with the
interface's virtualport, which will have the instance-specific info
(i.e. the interfaceid or instanceid).
Additionally, the guest's interface XML shouldn't need to know what
type of network connection will be used prior to runtime - it could be
openvswitch, 802.1Qbh, 802.1Qbg, or none of the above - but should
still be able to specify instance-specific info just in case it turns
out to be applicable.
Finally, up to now, the parser for virtualport has always generated a
random instanceid/interfaceid when appropriate, making it impossible
to leave it blank (which is what's required for virtualports within a
network/portprofile definition).
This patch modifies the parser and formatter of the <virtualport>
element in the following ways:
* because most of the attributes in a virNetDevVPortProfile are fixed
size binary data with no reserved values, there is no way to embed a
"this value wasn't specified" sentinel into the existing data. To
solve this problem, the new *_specified fields in the
virNetDevVPortProfile object that were added in a previous patch of
this series are now set when the corresponding attribute is present
during the parse.
* allow parsing/formatting a <virtualport> that has no type set. In
this case, all fields are settable, but all are also optional.
* add a GENERATE_MISSING_DEFAULTS flag to the parser - if this flag is
set and an instanceid/interfaceid is expected but not provided, a
random one will be generated. This was previously the default
behavior, but is now done only for virtualports inside an
<interface> definition, not for those in <network> or <portgroup>.
* add a REQUIRE_ALL_ATTRIBUTES flag to the parser - if this flag is
set the parser will call the new
virNetDevVPortProfileCheckComplete() functions at the end of the
parser to check for any missing attributes (based on type), and
return failure if anything is missing. This used to be default
behavior. Now it is only used for the virtualport defined inside an
interface's <actual> element (by the time you've figured out the
contents of <actual>, you should have all the necessary data to fill
in the entire virtualport)
* add a REQUIRE_TYPE flag to the parser - if this flag is set, the
parser will return an error if the virtualport has no type
attribute. This also was previously the default behavior, but isn't
needed in the case of the virtualport for a type='network' interface
(i.e. the exact type isn't yet known), or the virtualport of a
portgroup (i.e. the portgroup just has modifiers for the network's
virtualport, which *does* require a type) - in those cases, the
check will be done at domain startup, once the final virtualport is
assembled (this is handled in the next patch).
List:
- some old libvir/libvirt rename leftovers (the only problem can be
if somebody parses 'virsh version' output really badly)
- remove pointless tags specified in some pages that are not used
This patch makes search.php autogenerated from search.php.in, thus
removing hardcoded menus, footer etc. and the search.php is added to
.gitignore.
There is new rule added for *.php files (to make it bit less
hardcoded) that takes *.php.code.in and injects it inside the
generated *.php (xslt was not happy about php code in the source xml).
Error 404 page had relative paths specified for both the image and
stylesheets which caused a problem when requested URL included a
subfolder (e.g. http://libvirt.org/asdf/asdf ). This patch corrects
this behaviour by modifying href_base to '/' (for style-sheets) and
changing the src of the image (to be '/' always).
The access, birth, modification and change times are added to
storage volumes and corresponding xml representations. This
shows up in the XML in this format:
<timestamps>
<atime>1341933637.027319099</atime>
<mtime>1341933637.027319099</mtime>
</timestamps>
Signed-off-by: Eric Blake <eblake@redhat.com>
capability.rng: Guest features can be in any order.
nodedev.rng: Added <driver> element, <capability> phys_function and
virt_functions for PCI devices.
storagepool.rng: Owner or group ID can be -1.
schema tests: New capabilities and nodedev files; changed owner and
group to -1 in pool-dir.xml.
storage_conf: Print uid_t and gid_t as signed to storage pool XML.
With 0.10.0-rc0 out the door, we are committed to the next version
number.
* src/libvirt_public.syms (LIBVIRT_0.9.14): Rename...
(LIBVIRT_0.10.0): ...to this.
* docs/formatdomain.html.in: Fix fallout.
* src/openvz/openvz_driver.c (openvzDriver): Likewise.
* src/remote/remote_driver.c (remote_driver): Likewise.
Libvirt adds a USB controller to the guest even if the user does not
specify any in the XML. This is due to back-compat reasons.
To allow disabling USB for a guest this patch adds a new USB controller
type "none" that disables USB support for the guest.
Parallels Cloud Server is a cloud-ready virtualization
solution that allows users to simultaneously run multiple virtual
machines and containers on the same physical server.
More information can be found here: http://www.parallels.com/products/pcs/
Also beta version of Parallels Cloud Server can be downloaded there.
Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
The cfg.mk file rule to check for tab characters was not
applied to perl files. Much of our Perl code is full of
tabs as a result. Kill them, kill them all !
We don't expect people to have tools installed to regenerate .png
from .fig by default. However, since commit 5eb3df8, several
.fig files were updated without regenerating the .png file, and
as a result, 'make dist' ends up regenerating those five files,
or worse, failing because of missing tools (convert from
ImageMagick).
Additionally, even if the tools are present, the generation of
.png files is nondeterministic (the resulting files contain a
timestamp), which means prior to this patch, running 'make dist'
from two checkouts will end up producing different tarball
contents (two 'make dist' runs will always produce different tar
files, since tarballs also contain timestamps; but unpacking the
tarballs and doing a recursive diff will show if the contents
are unchanged).
After this patch, the timestamps are now up-to-date, and 'make
dist' no longer has anything to do for the .png files. This gets
us closer to the goal of two checkouts being able to produce the
same tarball.
* docs/libvirt-*.png: Regenerate.
The time keeping example was missing quotes which resulted in an error
if you copied and pasted the example into a domain's XML. Additionally
the rest of the examples use single quotes (') instead of double quotes
(") so standardized that.
This patch brings support to manage sheepdog pools and volumes to libvirt.
It uses the "collie" command-line utility that comes with sheepdog for that.
A sheepdog pool in libvirt maps to a sheepdog cluster.
It needs a host and port to connect to, which in most cases
is just going to be the default of localhost on port 7000.
A sheepdog volume in libvirt maps to a sheepdog vdi.
To create one specify the pool, a name and the capacity.
Volumes can also be resized later.
In the volume XML the vdi name has to be put into the <target><path>.
To use the volume as a disk source for virtual machines specify
the vdi name as "name" attribute of the <source>.
The host and port information from the pool are specified inside the host tag.
<disk type='network'>
...
<source protocol="sheepdog" name="vdi_name">
<host name="localhost" port="7000"/>
</source>
</disk>
To work right this patch parses the output of collie,
so it relies on the raw output option. There recently was a bug which caused
size information to be reported wrong. This is fixed upstream already and
will be in the next release.
Signed-off-by: Sebastian Wiedenroth <wiedi@frubar.net>
Added s390-virtio machine type to the XML schema for domains in order
to not fail the domain schema tests.
Signed-off-by: Viktor Mihajlovski <mihajlov@linux.vnet.ibm.com>
Currently you can configure LXC to bind a host directory to
a guest directory, but not to bind a guest directory to a
guest directory. While the guest container init could do
this itself, allowing it in the libvirt XML means a stricter
SELinux policy can be written
Introduce a new syntax for filesystems to allow use of a RAM
filesystem
<filesystem type='ram'>
<source usage='10' units='MiB'/>
<target dir='/mnt'/>
</filesystem>
The usage units default to KiB to limit consumption of host memory.
* docs/formatdomain.html.in: Document new syntax
* docs/schemas/domaincommon.rng: Add new attributes
* src/conf/domain_conf.c: Parsing/formatting of RAM filesystems
* src/lxc/lxc_container.c: Mounting of RAM filesystems
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
'boot' tag shouldn't be exclusive with 'kernel', 'initrd', and 'cmdline',
though the boot sequence doesn't make sense when the guest boots from
kernel directly. But it's useful if booting from kernel is to install
a newguest, even if it's not to install a guest, there is no hurt. And
on the other hand, we allow 'boot' and the kernel tags when parsing.
A core use case of the hook scripts is to be able to do things
to a guest's network configuration. It is possible to hook into
the 'start' operation for a QEMU guest which runs just before
the guest is started. The TAP devices will exist at this point,
but the QEMU process will not. It can be desirable to have a
'started' hook too, which runs once QEMU has started.
If libvirtd is restarted it will re-populate firewall rules,
but there is no QEMU hook to trigger for existing domains.
This is solved with a 'reconnect' hook.
Finally, if attaching to an external QEMU process there needs
to be an 'attach' hook script.
This all also applies to the LXC driver
* docs/hooks.html.in: Document new operations
* src/util/hooks.c, src/util/hooks.c: Add 'started', 'reconnect'
and 'attach' operations for QEMU. Add 'prepare', 'started',
'release' and 'reconnect' operations for LXC
* src/lxc/lxc_driver.c: Add hooks for 'prepare', 'started',
'release' and 'reconnect' operations
* src/qemu/qemu_process.c: Add hooks for 'started', 'reconnect'
and 'reconnect' operations
A few examples for <interface> had a type='direct' interface with no
sub-elements. This is not allowed - a type='direct' interface must
have at least a source element. (Most likely the example was copied
from the type='user' or type='ethernet' examples - they *do* allow an
instance with no sub-elements).
There was also one place that mistakenly used %lt; ... %gt; instead of
< ... > (for some reason, I make that typo all the time).
Eric Blake and Guido Günther were guests during this week's
FLOSS Weekly podcast, giving insights into libvirt as a Free
Software project. Also, there are several useful blogs on
virt-related topics.
* docs/relatedlinks.html.in (Blogs and Podcasts): New section.
We had a distributed file (remote_protocol.h, which in turn was
a prereq to remote_driver.c) depending on a generated file
(libvirt_probes.h), which is a no-no for a VPATH build from a
read-only source tree (no wonder 'make distcheck' tests precisely
that situation):
File `libvirt_driver_remote.la' does not exist.
File `libvirt_driver_remote_la-remote_driver.lo' does not exist.
Prerequisite `libvirt_probes.h' is newer than target `../../src/remote/remote_protocol.h'.
Must remake target `../../src/remote/remote_protocol.h'.
Invoking recipe from Makefile:7464 to update target `../../src/remote/remote_protocol.h'.
make[3]: Entering directory `/home/remote/eblake/libvirt-tmp2/build/libvirt-0.9.12/_build/src'
GEN ../../src/remote/remote_protocol.h
cannot create ../../src/remote/remote_protocol.h: Permission denied at ../../src/rpc/genprotocol.pl line 31.
make[3]: *** [../../src/remote/remote_protocol.h] Error 13
Rather than making distributed .c files depend on generated files, we
really want to ensure that compilation into .lo files is not attempted
until the generated files are present, done by this patch. Since there
were two different sets of conditionally generated files that both
feed the .lo file, I had to introduce a new variable REMOTE_DRIVER_PREREQS
to keep automake happy.
After that fix, the next issue was that make treats './foo' and 'foo'
differently in determining whether an implicit %foo rule is applicable,
with the result that locking/qemu-sanlock.conf wasn't properly being
built at the right times. Also, the output for using the .aug test
files was a bit verbose.
After fixing the src directory, the next error is related to the docs
directory, where the tarball is missing a stamp file and thus tries to
regenerate files that are already present:
GEN ../../docs/apibuild.py.stamp
Traceback (most recent call last):
File "../../docs/apibuild.py", line 2511, in <module>
rebuild("libvirt")
File "../../docs/apibuild.py", line 2495, in rebuild
builder.serialize()
File "../../docs/apibuild.py", line 2424, in serialize
output = open(filename, "w")
IOError: [Errno 13] Permission denied: '../../docs/libvirt-api.xml'
make[5]: *** [../../docs/apibuild.py.stamp] Error 1
and fixing that exposed another case of a distributed file (generated
html) depending on a built file (libvirt.h), but only when doing an
in-tree build, because of a file glob.
* src/Makefile.am ($(srcdir)/remote/remote_driver.c): Change...
(libvirt_driver_remote_la-remote_driver.lo): ...to the real
dependency.
($(builddir)/locking/%-sanlock.conf): Drop $(builddir), so that
rule gets run in time for test_libvirt_sanlock.aug.
(test_libvir*.aug): Cater to silent build.
(conf_DATA): Don't ship qemu-sanlock.conf in the tarball, since it
is trivial to regenerate.
* docs/Makefile.am (EXTRA_DIST): Ship our stamp file.
($(APIBUILD_STAMP)): Don't depend on generated file.
This patch adds DHCP snooping support to libvirt. The learning method for
IP addresses is specified by setting the "CTRL_IP_LEARNING" variable to one of
"any" [default] (existing IP learning code), "none" (static only addresses)
or "dhcp" (DHCP snooping).
Active leases are saved in a lease file and reloaded on restart or HUP.
The following interface XML activates and uses the DHCP snooping:
<interface type='bridge'>
<source bridge='virbr0'/>
<filterref filter='clean-traffic'>
<parameter name='CTRL_IP_LEARNING' value='dhcp'/>
</filterref>
</interface>
All filters containing the variable 'IP' are automatically adjusted when
the VM receives an IP address via DHCP. However, multiple IP addresses per
interface are silently ignored in this patch, thus only supporting one IP
address per interface. Multiple IP address support is added in a later
patch in this series.
Signed-off-by: David L Stevens <dlstevens@us.ibm.com>
Signed-off-by: Stefan Berger <stefanb@linux.vnet.ibm.com>
The apibuild.py parser needs to be able to parse & ignore
any VIR_ENUM_IMPL/VIR_ENUM_DECL macros in the source. Add
some special case code to deal with this rather than trying
to figure out a generic syntax for parsing macros.
* apibuild.py: Special case VIR_ENUM_IMPL & VIR_ENUM_DECL
This patch adds support for a new storage backend with RBD support.
RBD is the RADOS Block Device and is part of the Ceph distributed storage
system.
It comes in two flavours: Qemu-RBD and Kernel RBD, this storage backend only
supports Qemu-RBD, thus limiting the use of this storage driver to Qemu only.
To function this backend relies on librbd and librados being present on the
local system.
The backend also supports Cephx authentication for safe authentication with
the Ceph cluster.
For storing credentials it uses the built-in secret mechanism of libvirt.
Signed-off-by: Wido den Hollander <wido@widodh.nl>
This patch adds support for the recent ipset iptables extension
to libvirt's nwfilter subsystem. Ipset allows to maintain 'sets'
of IP addresses, ports and other packet parameters and allows for
faster lookup (in the order of O(1) vs. O(n)) and rule evaluation
to achieve higher throughput than what can be achieved with
individual iptables rules.
On the command line iptables supports ipset using
iptables ... -m set --match-set <ipset name> <flags> -j ...
where 'ipset name' is the name of a previously created ipset and
flags is a comma-separated list of up to 6 flags. Flags use 'src' and 'dst'
for selecting IP addresses, ports etc. from the source or
destination part of a packet. So a concrete example may look like this:
iptables -A INPUT -m set --match-set test src,src -j ACCEPT
Since ipset management is quite complex, the idea was to leave ipset
management outside of libvirt but still allow users to reference an ipset.
The user would have to make sure the ipset is available once the VM is
started so that the iptables rule(s) referencing the ipset can be created.
Using XML to describe an ipset in an nwfilter rule would then look as
follows:
<rule action='accept' direction='in'>
<all ipset='test' ipsetflags='src,src'/>
</rule>
The two parameters on the command line are also the two distinct XML attributes
'ipset' and 'ipsetflags'.
FYI: Here is the man page for ipset:
https://ipset.netfilter.org/ipset.man.html
Regards,
Stefan
Sometimes it is useful to see the callpath for log messages.
This change enhances the log filter syntax so that stack traces
can be show by setting '1:+NAME' instead of '1:NAME'.
This results in output like:
2012-05-09 14:18:45.136+0000: 13314: debug : virInitialize:414 : register drivers
/home/berrange/src/virt/libvirt/src/.libs/libvirt.so.0(virInitialize+0xd6)[0x7f89188ebe86]
/home/berrange/src/virt/libvirt/tools/.libs/lt-virsh[0x431921]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x3a21e21735]
/home/berrange/src/virt/libvirt/tools/.libs/lt-virsh[0x40a279]
2012-05-09 14:18:45.136+0000: 13314: debug : virRegisterDriver:775 : driver=0x7f8918d02760 name=Test
/home/berrange/src/virt/libvirt/src/.libs/libvirt.so.0(virRegisterDriver+0x6b)[0x7f89188ec717]
/home/berrange/src/virt/libvirt/src/.libs/libvirt.so.0(+0x11b3ad)[0x7f891891e3ad]
/home/berrange/src/virt/libvirt/src/.libs/libvirt.so.0(virInitialize+0xf3)[0x7f89188ebea3]
/home/berrange/src/virt/libvirt/tools/.libs/lt-virsh[0x431921]
/lib64/libc.so.6(__libc_start_main+0xf5)[0x3a21e21735]
/home/berrange/src/virt/libvirt/tools/.libs/lt-virsh[0x40a279]
* docs/logging.html.in: Document new syntax
* configure.ac: Check for execinfo.h
* src/util/logging.c, src/util/logging.h: Add support for
stack traces
* tests/testutils.c: Adapt to API change
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
As defined in:
http://standards.freedesktop.org/basedir-spec/basedir-spec-latest.html
This offers a number of advantages:
* Allows sharing a home directory between different machines, or
sessions (eg. using NFS)
* Cleanly separates cache, runtime (eg. sockets), or app data from
user settings
* Supports performing smart or selective migration of settings
between different OS versions
* Supports reseting settings without breaking things
* Makes it possible to clear cache data to make room when the disk
is filling up
* Allows us to write a robust and efficient backup solution
* Allows an admin flexibility to change where data and settings are stored
* Dramatically reduces the complexity and incoherence of the
system for administrators
Ever since commit c964b6a, make was trying to find the timestamp
of '""./apibuild.py".stamp"', but only touching 'apibuild.py.stamp',
and thus always rebuilding. Reported by Daniel P. Berrange.
* docs/Makefile.am (APIBUILD, APIBUILD_STAMP): Omit bogus quotes.
Based on a report by Seth Vidal. Just because _you_ can use virsh
to connect to both source and destinations does not mean that libvirtd
on the source (aka _root_) can likewise connect to the destination;
this matters when setting up a peer-to-peer migration instead of a
native one.
* docs/migration.html.in: Mention that in peer-to-peer, the owner
of the source libvirtd (usually root) must be able to connect to
the destination.
Though numad will manage the memory allocation of task dynamically,
it wants management application (libvirt) to pre-set the memory
policy according to the advisory nodeset returned from querying numad,
(just like pre-bind CPU nodeset for domain process), and thus the
performance could benefit much more from it.
This patch introduces new XML tag 'placement', value 'auto' indicates
whether to set the memory policy with the advisory nodeset from numad,
and its value defaults to the value of <vcpu> placement, or 'static'
if 'nodeset' is specified. Example of the new XML tag's usage:
<numatune>
<memory placement='auto' mode='interleave'/>
</numatune>
Just like what current "numatune" does, the 'auto' numa memory policy
setting uses libnuma's API too.
If <vcpu> "placement" is "auto", and <numatune> is not specified
explicitly, a default <numatume> will be added with "placement"
set as "auto", and "mode" set as "strict".
The following XML can now fully drive numad:
1) <vcpu> placement is 'auto', no <numatune> is specified.
<vcpu placement='auto'>10</vcpu>
2) <vcpu> placement is 'auto', no 'placement' is specified for
<numatune>.
<vcpu placement='auto'>10</vcpu>
<numatune>
<memory mode='interleave'/>
</numatune>
And it's also able to control the CPU placement and memory policy
independently. e.g.
1) <vcpu> placement is 'auto', and <numatune> placement is 'static'
<vcpu placement='auto'>10</vcpu>
<numatune>
<memory mode='strict' nodeset='0-10,^7'/>
</numatune>
2) <vcpu> placement is 'static', and <numatune> placement is 'auto'
<vcpu placement='static' cpuset='0-24,^12'>10</vcpu>
<numatune>
<memory mode='interleave' placement='auto'/>
</numatume>
A follow up patch will change the XML formatting codes to always output
'placement' for <vcpu>, even it's 'static'.
qemu's behavior in this case is to change the spice server behavior to
require secure connection to any channel not otherwise specified as
being in plaintext mode. libvirt doesn't currently allow requesting this
(via plaintext-channel=<channel name>).
RHBZ: 819499
Signed-off-by: Alon Levy <alevy@redhat.com>
In order to track a block copy job across libvirtd restarts, we
need to save internal XML that tracks the name of the file
holding the mirror. Displaying this name in dumpxml might also
be useful to the user, even if we don't yet have a way to (re-)
start a domain with mirroring enabled up front. This is done
with a new <mirror> sub-element to <disk>, as in:
<disk type='file' device='disk'>
<driver name='qemu' type='raw'/>
<source file='/var/lib/libvirt/images/original.img'/>
<mirror file='/var/lib/libvirt/images/copy.img' format='qcow2' ready='yes'/>
...
</disk>
For now, the element is output-only, in live domains; it is ignored
when defining a domain or hot-plugging a disk (since those contexts
use VIR_DOMAIN_XML_INACTIVE in parsing). The 'ready' attribute appears
when libvirt knows that the job has changed from the initial pulling
phase over to the mirroring phase, although absence of the attribute
is not a sure indicator of the current phase. If we come up with a way
to make qemu start with mirroring enabled, we can relax the xml
restriction, and allow <mirror> (but not attribute 'ready') on input.
Testing active-only XML meant tweaking the testsuite slightly, but it
was worth it.
* docs/schemas/domaincommon.rng (diskspec): Add diskMirror.
* docs/formatdomain.html.in (elementsDisks): Document it.
* src/conf/domain_conf.h (_virDomainDiskDef): New members.
* src/conf/domain_conf.c (virDomainDiskDefFree): Clean them.
(virDomainDiskDefParseXML): Parse them, but only internally.
(virDomainDiskDefFormat): Output them.
* tests/qemuxml2argvdata/qemuxml2argv-disk-mirror.xml: New test file.
* tests/qemuxml2xmloutdata/qemuxml2xmlout-disk-mirror.xml: Likewise.
* tests/qemuxml2xmltest.c (testInfo): Alter members.
(testCompareXMLToXMLHelper): Allow more test control.
(mymain): Run new test.
<filesystemtgt> is redundant, as every group uses it; <address>
shouldn't be in <filesystemtgt> in case of the meaning could be
"filesystemtarget"; The elements <address>, <alias>, <target>,
... should be interleaved.
'omitted' was mispelt 'commited' twice. One of the sentences with
the typo was also missing an 'is' ('each VCPU *is* pinned to all...')
which I added in this commit while I was at it.
As explained in previous patch, numad will balance the affinity
dynamically, so reflecting the cpuset from numad at the first
time doesn't make much case, and may just could cause confusion.
This is based on recent developments on patch checker and the
goal is to keep a list of pending patches needing review on the
project web site. The page template in git just holds a pointer
to the web page.
Every now & then, with parallel builds, we get a failure to
validate hvsupport.html.in. I eventually noticed that this
is because we get 2 instances of the generator running at
once.
We already list hvsupport.html.in in BUILT_SOURCES but this
was not working. It turns out the flaw is that we were
adding deps to the 'all:' target instead of the 'all-am:'
target. BUILT_SOURCES is a dep of 'all', so any custom
targets written in Makefile.am must use 'all-am:' so that
they don't get run until BUILT_SOURCES are completely
generated
* docs/Makefile.am: s/all/all-am/
* configure.ac docs/news.html.in libvirt.spec.in: update for the release
* po/*.po*: updated a number of languages translation including new
indian languages and regenerated
Since Xen 3.1 the clock=variable semantic is supported. In addition to
qemu/kvm Xen also knows about a variant where the offset is relative to
'localtime' instead of 'utc'.
Extends the libvirt structure with a flag 'basis' to specify, if the
offset is relative to 'localtime' or 'utc'.
Extends the libvirt structure with a flag 'reset' to force the reset
behaviour of 'localtime' and 'utc'; this is needed for backward
compatibility with previous versions of libvirt, since they report
incorrect XML.
Adapt the only user 'qemu' to the new name.
Extend the RelaxNG schema accordingly.
Document the new 'basis' attribute in the HTML documentation.
Adapt test for the new attribute.
Signed-off-by: Philipp Hahn <hahn@univention.de>
There are a number of flaws with our packaging of the libvirtd
daemon:
- Installing 'libvirt' does not install 'qemu-kvm' or 'xen'
etc which are required to actually run the hypervisor in
question
- Installing 'libvirt' pulls in the default configuration
files which may not be wanted & cause problems if installed
inside a guest
- It is not possible to explicitly required all the peices
required to manage a specific hypervisor
This change takes the 'libvirt' RPM and and changes it thus
- libvirt: just a virtual package with dep on libvirt-daemon,
libvirt-daemon-config-network & libvirt-daemon-config-nwfilter
- libvirt-daemon: the libvirt daemon and related pieces
- libvirt-daemon-config-network: the default network config
- libvirt-daemon-config-nwfilter: the network filter configs
- libvirt-docs: the website HTML
We then introduce some more virtual (empty) packages
- libvirt-daemon-qemu: Deps on libvirt-daemon & 'qemu'
- libvirt-daemon-kvm: Deps on libvirt-daemon & 'qemu-kvm'
- libvirt-daemon-lxc: Deps on libvirt-daemon
- libvirt-daemon-uml: Deps on libvirt-daemon
- libvirt-daemon-xen: Deps on libvirt-daemon & 'xen'
- libvirt-qemu: Deps on libvirt-daemon-qemu & libvirt-daemon-config-{network,nwfilter}
- libvirt-kvm: Deps on libvirt-daemon-kvm & libvirt-daemon-config-{network,nwfilter}
- libvirt-lxc: Deps on libvirt-daemon-lxc & libvirt-daemon-config-{network,nwfilter}
- libvirt-uml: Deps on libvirt-daemon-uml & libvirt-daemon-config-{network,nwfilter}
- libvirt-xen: Deps on libvirt-daemon-xen & libvirt-daemon-config-network
My intent in the future is to turn on the driver modules by
default, at which time 'libvirt-daemon' will cease to include
any specific drivers, instead we'll get libvirt-daemon-driver-XXXX
packages for each driver. The libvirt-daemon-XXX packages will
then pull in each driver that they require.
It is recommended that applications required a locally installed
libvirtd daemon, use either 'Requires: libvirt-daemon-XXXX' or
'Requires: libvirt-XXX' and *not* "Requires: libvirt-daemon"
or 'Requires: libvirt'
* libvirt.spec.in: Refactor RPMs
* docs/packaging.html.in, docs/sitemap.html.in: Document
new RPM split rationale
* Don't advertise information on the network without consent of
the user, either through manual configuration, or a user
interface that drives this option.
* Since libvirtd must be configured for network access anyway
(for all but ssh), this setting was not useful "out of the box",
so changing this default setting does not remove "out of the box"
functionality.
Pass argv to the init binary of LXC, using a new <initarg> element.
* docs/formatdomain.html.in: Document <os> usage for containers
* docs/schemas/domaincommon.rng: Add <initarg> element
* src/conf/domain_conf.c, src/conf/domain_conf.h: parsing and
formatting of <initarg>
* src/lxc/lxc_container.c: Setup LXC argv
* tests/Makefile.am, tests/lxcxml2xmldata/lxc-systemd.xml,
tests/lxcxml2xmltest.c, tests/testutilslxc.c,
tests/testutilslxc.h: Test parsing/formatting of LXC related
XML parts
A few times libvirt users manually setting mac addresses have
complained of a networking failure that ends up being due to a multicast
mac address being used for a guest interface. This patch prevents that
by logging an error and failing if a multicast mac address is
encountered in each of the three following cases:
1) domain xml <interface> mac address.
2) network xml bridge mac address.
3) network xml dhcp/host mac address.
There are several other places where a mac address can be input that
aren't controlled in this manner because failure to do so has no
consequences (e.g., if the address will be used to search through
existing interfaces for a match).
The RNG has been updated to add multiMacAddr and uniMacAddr along with
the existing macAddr, and macAddr was switched to uniMacAddr where
appropriate.
If no <interface> elements are included in an LXC guest XML
description, then the LXC guest will just see the host's
network interfaces. It is desirable to be able to hide the
host interfaces, without having to define any guest interfaces.
This patch introduces a new feature flag <privnet/> to allow
forcing of a private network namespace for LXC. In the future
I also anticipate that we will add <privuser/> to force a
private user ID namespace.
* src/conf/domain_conf.c, src/conf/domain_conf.h: Add support
for <privnet/> feature. Auto-set <privnet> if any <interface>
devices are defined
* src/lxc/lxc_container.c: Honour request for private network
namespace
Currently if the URI passed to virConnectOpen* is NULL, then we
- Look for LIBVIRT_DEFAULT_URI env var
- Probe for drivers
This changes it so that
- Look for LIBVIRT_DEFAULT_URI env var
- Look for 'uri_default' in $HOME/.libvirt/libvirt.conf
- Probe for drivers
numad is an user-level daemon that monitors NUMA topology and
processes resource consumption to facilitate good NUMA resource
alignment of applications/virtual machines to improve performance
and minimize cost of remote memory latencies. It provides a
pre-placement advisory interface, so significant processes can
be pre-bound to nodes with sufficient available resources.
More details: http://fedoraproject.org/wiki/Features/numad
"numad -w ncpus:memory_amount" is the advisory interface numad
provides currently.
This patch add the support by introducing a new XML attribute
for <vcpu>. e.g.
<vcpu placement="auto">4</vcpu>
<vcpu placement="static" cpuset="1-10^6">4</vcpu>
The returned advisory nodeset from numad will be printed
in domain's dumped XML. e.g.
<vcpu placement="auto" cpuset="1-10^6">4</vcpu>
If placement is "auto", the number of vcpus and the current
memory amount specified in domain XML will be used for numad
command line (numad uses MB for memory amount):
numad -w $num_of_vcpus:$current_memory_amount / 1024
The advisory nodeset returned from numad will be used to set
domain process CPU affinity then. (e.g. qemuProcessInitCpuAffinity).
If the user specifies both CPU affinity policy (e.g.
(<vcpu cpuset="1-10,^7,^8">4</vcpu>) and placement == "auto"
the specified CPU affinity will be overridden.
Only QEMU/KVM drivers support it now.
See docs update in patch for more details.
If there is a disk file with a comma in the name, QEmu expects a double
comma instead of a single one (e.g., the file "virtual,disk.img" needs
to be specified as "virtual,,disk.img" in QEmu's command line). This
patch fixes libvirt to work with that feature. Fix RHBZ #801036.
Based on an initial patch by Crístian Viana.
* src/util/buf.h (virBufferEscape): Alter signature.
* src/util/buf.c (virBufferEscape): Add parameter.
(virBufferEscapeSexpr): Fix caller.
* src/qemu/qemu_command.c (qemuBuildRBDString): Likewise. Also
escape commas in file names.
(qemuBuildDriveStr): Escape commas in file names.
* docs/schemas/basictypes.rng (absFilePath): Relax RNG to allow
commas in input file names.
* tests/qemuxml2argvdata/*-disk-drive-network-sheepdog.*: Update
test.
Signed-off-by: Eric Blake <eblake@redhat.com>
Output is still in kibibytes, but input can now be in different
scales for ease of typing.
* src/conf/domain_conf.c (virDomainParseMemory): New helper.
(virDomainDefParseXML): Use it when parsing.
* docs/schemas/domaincommon.rng: Expand XML; rename memoryKBElement
to memoryElement and update callers.
* docs/formatdomain.html.in (elementsMemoryAllocation): Document
scaling.
* tests/qemuxml2argvdata/qemuxml2argv-memtune.xml: Adjust test.
* tests/qemuxml2xmltest.c: Likewise.
* tests/qemuxml2xmloutdata/qemuxml2xmlout-memtune.xml: New file.
The test domain allows <memory>0</memory>, but the RNG was stating
that memory had to be at least 4096000 bytes. Hypervisors should
enforce their own limits, rather than complicating the RNG.
Meanwhile, some copy and paste had introduced some fishy constructs
in various unit tests.
* docs/schemas/domaincommon.rng (memoryKB, memoryKBElement): Drop
limit that isn't enforced in code.
* src/conf/domain_conf.c (virDomainDefParseXML): Require current
<= maximum.
* tests/qemuxml2argvdata/*.xml: Fix offenders.
Disk manufacturers are fond of quoting sizes in powers of 10,
rather than powers of 2 (after all, 2.1 GB sounds larger than
2.0 GiB, even though the exact opposite is true). So, we might
as well follow coreutils' lead in supporting three types of
suffix: single letter ${u} (which we already had) and ${u}iB
for the power of 2, and ${u}B for power of 10.
Additionally, it is impossible to create a file with more than
2**63 bytes, since off_t is signed (if you have enough storage
to even create one 8EiB file, I'm jealous). This now reports
failure up front rather than down the road when the kernel
finally refuses an impossible size.
* docs/schemas/basictypes.rng (unit): Add suffixes.
* src/conf/storage_conf.c (virStorageSize): Use new function.
* docs/formatstorage.html.in: Document it.
* tests/storagevolxml2xmlin/vol-file-backing.xml: Test it.
* tests/storagevolxml2xmlin/vol-file.xml: Likewise.
Make it obvious to 'dumpxml' readers what unit we are using,
since our default of KiB for memory (1024) differs from qemu's
default of MiB; and differs from our use of bytes for storage.
Tests were updated via:
$ find tests/*data tests/*out -name '*.xml' | \
xargs sed -i 's/<\(memory\|currentMemory\|hard_limit\|soft_limit\|min_guarantee\|swap_hard_limit\)>/<\1 unit='"'KiB'>/"
$ find tests/*data tests/*out -name '*.xml' | \
xargs sed -i 's/<\(capacity\|allocation\|available\)>/<\1 unit='"'bytes'>/"
followed by a few fixes for the stragglers.
Note that with this patch, the RNG for <memory> still forbids
validation of anything except unit='KiB', since the code silently
ignores the attribute; a later patch will expand <memory> to allow
scaled input in the code and update the RNG to match.
* docs/schemas/basictypes.rng (unit): Add 'bytes'.
(scaledInteger): New define.
* docs/schemas/storagevol.rng (sizing): Use it.
* docs/schemas/storagepool.rng (sizing): Likewise.
* docs/schemas/domaincommon.rng (memoryKBElement): New define; use
for memory elements.
* src/conf/storage_conf.c (virStoragePoolDefFormat)
(virStorageVolDefFormat): Likewise.
* src/conf/domain_conf.h (_virDomainDef): Document unit used
internally.
* src/conf/storage_conf.h (_virStoragePoolDef, _virStorageVolDef):
Likewise.
* tests/*data/*.xml: Update all tests.
* tests/*out/*.xml: Likewise.
* tests/define-dev-segfault: Likewise.
* tests/openvzutilstest.c (testReadNetworkConf): Likewise.
* tests/qemuargv2xmltest.c (blankProblemElements): Likewise.
The code supported unit='E' for "exabyte", but the RNG did not;
conversely, the RNG supported "z" and "y" but the code did not
(I'm jealous if you have that much storage, particularly since
it won't fit in 64-bit off_t). Also, the code supported
<allocation unit='...'>, but not the RNG.
In an effort to make 'unit' more worthwhile in future patches,
it's easier to share it between files.
In making this factorization, note that absFilePath is more
permissive than 'path', so storage pools and storage volumes
will now validate with a wider set of file names than before.
I don't think this should be a problem in practice.
* docs/schemas/storagepool.rng: Include basic types, rather than
repeating things here.
* docs/schemas/storagevol.rng: Likewise.
* docs/schemas/basictypes.rng: Add 'unsignedLong', 'unit', and fix
to match storage code.
Yes, I like kilobytes better than kibibytes (when I say kilobytes,
I generally mean 1024). But since the term is ambiguous, it can't
hurt to say what we mean, by using both the correct name and
calling out the numeric equivalent.
* src/libvirt.c (virDomainGetMaxMemory, virDomainSetMaxMemory)
(virDomainSetMemory, virDomainSetMemoryFlags)
(virNodeGetFreeMemory): Tweak wording.
* docs/formatdomain.html.in: Likewise.
* docs/formatstorage.html.in: Likewise.
This is the new interface type that sets up an SR-IOV PCI network
device to be assigned to the guest with PCI passthrough after
initializing some network device-specific things from the config
(e.g. MAC address, virtualport profile parameters). Here is an example
of the syntax:
<interface type='hostdev' managed='yes'>
<source>
<address type='pci' domain='0' bus='0' slot='4' function='3'/>
</source>
<mac address='00:11:22:33:44:55'/>
<address type='pci' domain='0' bus='0' slot='7' function='0'/>
</interface>
This would assign the PCI card from bus 0 slot 4 function 3 on the
host, to bus 0 slot 7 function 0 on the guest, but would first set the
MAC address of the card to 00:11:22:33:44:55.
NB: The parser and formatter don't care if the PCI card being
specified is a standard single function network adapter, or a virtual
function (VF) of an SR-IOV capable network adapter, but the upcoming
code that implements the back end of this config will work *only* with
SR-IOV VFs. This is because modifying the mac address of a standard
network adapter prior to assigning it to a guest is pointless - part
of the device reset that occurs during that process will reset the MAC
address to the value programmed into the card's firmware.
Although it's not supported by any of libvirt's hypervisor drivers,
usb network hostdevs are also supported in the parser and formatter
for completeness and consistency. <source> syntax is identical to that
for plain <hostdev> devices, except that the <address> element should
have "type='usb'" added if bus/device are specified:
<interface type='hostdev'>
<source>
<address type='usb' bus='0' device='4'/>
</source>
<mac address='00:11:22:33:44:55'/>
</interface>
If the vendor/product form of usb specification is used, type='usb'
is implied:
<interface type='hostdev'>
<source>
<vendor id='0x0012'/>
<product id='0x24dd'/>
</source>
<mac address='00:11:22:33:44:55'/>
</interface>
Again, the upcoming patch to fill in the backend of this functionality
will log an error and fail with "Unsupported Config" if you actually
try to assign a USB network adapter to a guest using <interface
type='hostdev'> - just use a standard <hostdev> entry in that case
(and also for single-port PCI adapters).
* src/conf/domain_conf.h: Add new member "target" to struct
_virDomainDeviceDriveAddress.
* src/conf/domain_conf.c: Parse and format "target"
* Lots of tests (.xml) in tests/domainsnapshotxml2xmlout,
tests/qemuxml2argvdata, tests/qemuxml2xmloutdata, and
tests/vmx2xmldata/ are modified for newly introduced
attribute "target" for address of "drive" type.
KVM will be able to use a PCI SCSI controller even on POWER. Let
the user specify the vSCSI controller by other means than a default.
After this patch, the QEMU driver will actually look at the model
and reject anything but auto, lsilogic and ibmvscsi.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Osier Yang <jyang@redhat.com>
Remove suggestion that people file bugs against RHEL 5 and add a
suggestion that people increase the visibility of their bugs by
mentioning them on libvir-list.
Language bindings may well want to use the libvirt-api.xml and
libvirt-qemu-api.xml files to either auto-generate themselves,
or sanity check the manually written bindings for completeness.
Currently these XML files are not installed as standard, merely
ending up as a %doc file in the RPM.
This changes them to be installed into $prefix/share/libvirt/apis/
The *-refs.xml files are not installed, since those are only
useful during generation of the online API doc files.
The pkg-config file is enhanced so that you can query the install
location of the API files. eg
# pkg-config --variable=libvirt_qemu_api libvirt
/home/berrange/builder/i686-pc-mingw32/sys-root/mingw/share/libvirt/libvirt-qemu-api.xml
* docs/Makefile.am: Install libvirt-api.xml & libvirt-qemu-api.xml
* libvirt.pc.in: Add vars for querying API install location
* libvirt.spec.in, mingw32-libvirt.spec.in: Include API XML files
Someone mentioned to me that they interpreted this section of the KVM
driver page as suggesting that new guests should be created by
creating a qemu commandline and converting it to XML with
domxml-from-native. I don't think that's the intent of
domxml-from-native, so I added that clarification.
Commit b170eb99 introduced a bug: domains that had an explicit
<seclabel type='none'/> when started would not be reparsed if
libvirtd restarted. It turns out that our testsuite was not
exercising this because it never tried anything but inactive
parsing. Additionally, the live XML for such a domain failed
to re-validate. Applying just the tests/ portion of this patch
will expose the bugs that are fixed by the other two files.
* docs/schemas/domaincommon.rng (seclabel): Allow relabel under
type='none'.
* src/conf/domain_conf.c (virSecurityLabelDefParseXML): Per RNG,
presence of <seclabel> with no type implies dynamic. Don't
require sub-elements for type='none'.
* tests/qemuxml2xmltest.c (mymain): Add test.
* tests/qemuxml2argvtest.c (mymain): Likewise.
* tests/qemuxml2argvdata/qemuxml2argv-seclabel-none.xml: Add file.
* tests/qemuxml2argvdata/qemuxml2argv-seclabel-none.args: Add file.
Reported by Ansis Atteka.
Unlike .cvsignore under CVS, git allows for ignoring nested
names. We weren't very consistent where new tests were
being ignored (some in .gitignore, some in tests/.gitignore),
and I found it easier to just consolidate everything.
* .gitignore: Subsume entries from subdirectories.
* daemon/.gitignore: Delete.
* docs/.gitignore: Likewise.
* docs/devhelp/.gitignore: Likewise.
* docs/html/.gitignore: Likewise.
* examples/dominfo/.gitignore: Likewise.
* examples/domsuspend/.gitignore: Likewise.
* examples/hellolibvirt/.gitignore: Likewise.
* examples/openauth/.gitignore: Likewise.
* examples/domain-events/events-c/.gitignore: Likewise.
* include/libvirt/.gitignore: Likewise.
* src/.gitignore: Likewise.
* src/esx/.gitignore: Likewise.
* tests/.gitignore: Likewise.
* tools/.gitignore: Likewise.
Sometimes, its easier to run children with 2>&1 in shell notation,
and just deal with stdout and stderr interleaved. This was already
possible for fd handling; extend it to also work when doing string
capture of a child process.
* docs/internals/command.html.in: Document this.
* src/util/command.c (virCommandSetErrorBuffer): Likewise.
(virCommandRun, virExecWithHook): Implement it.
* tests/commandtest.c (test14): Test it.
* daemon/remote.c (remoteDispatchAuthPolkit): Use new command
feature.
Curently security labels can be of type 'dynamic' or 'static'.
If no security label is given, then 'dynamic' is assumed. The
current code takes advantage of this default, and avoids even
saving <seclabel> elements with type='dynamic' to disk. This
means if you temporarily change security driver, the guests
can all still start.
With the introduction of sVirt to LXC though, there needs to be
a new default of 'none' to allow unconfined LXC containers.
This patch introduces two new security label types
- default: the host configuration decides whether to run the
guest with type 'none' or 'dynamic' at guest start
- none: the guest will run unconfined by security policy
The 'none' label type will obviously be undesirable for some
deployments, so a new qemu.conf option allows a host admin to
mandate confined guests. It is also possible to turn off default
confinement
security_default_confined = 1|0 (default == 1)
security_require_confined = 1|0 (default == 0)
* src/conf/domain_conf.c, src/conf/domain_conf.h: Add new
seclabel types
* src/security/security_manager.c, src/security/security_manager.h:
Set default sec label types
* src/security/security_selinux.c: Handle 'none' seclabel type
* src/qemu/qemu.conf, src/qemu/qemu_conf.c, src/qemu/qemu_conf.h,
src/qemu/libvirtd_qemu.aug: New security config options
* src/qemu/qemu_driver.c: Tell security driver about default
config
The storage pools page contains details about the capabilities of the
various pool types, but not an overview of how they are intended to be
used. This patch adds some explanation of what pools and volumes can
be used for and why an administrator might want to use them.
libvirt supports 4 different versions of the user-land XenD daemon. When
queried the daemon just returns its generation number, which is hard to
match to the version of the Xen tools.
Replace the magic generation numbers by named enum definitions to
improve code readability.
Signed-off-by: Philipp Hahn <hahn@univention.de>
Qemu is adding the ability to do a partial rebase. That is, given:
base <- intermediate <- current
virDomainBlockPull will produce:
current
but qemu now has the ability to leave base in the chain, to produce:
base <- current
Note that current qemu can only do a forward merge, and only with
the current image as the destination, which is fully described by
this API without flags. But in the future, it may be possible to
enhance this API for additional scenarios by using flags:
Merging the current image back into a previous image (that is,
undoing a live snapshot), could be done by passing base as the
destination and flags with a bit requesting a backward merge.
Merging any other part of the image chain, whether forwards (the
backing image contents are pulled into the newer file) or backwards
(the deltas recorded in the newer file are merged back into the
backing file), could also be done by passing a new flag that says
that base should be treated as an XML snippet rather than an
absolute path name, where the XML could then supply the additional
instructions of which part of the image chain is being merged into
any other part.
* include/libvirt/libvirt.h.in (virDomainBlockRebase): New
declaration.
* src/libvirt.c (virDomainBlockRebase): Implement it.
* src/libvirt_public.syms (LIBVIRT_0.9.10): Export it.
* src/driver.h (virDrvDomainBlockRebase): New driver callback.
* src/rpc/gendispatch.pl (long_legacy): Add exemption.
* docs/apibuild.py (long_legacy_functions): Likewise.
This patch adds a new element <title> to the domain XML. This attribute
can hold a short title defined by the user to ease the identification of
domains. The title may not contain newlines and should be reasonably short.
*docs/formatdomain.html.in
*docs/schemas/domaincommon.rng
- add schema grammar for the new element and documentation
*src/conf/domain_conf.c
*src/conf/domain_conf.h
- add field to hold the new attribute
- add code to parse and create XML with the new attribute
Commit 8a09ee410 tickles a bug in libxml2-2.7.6 on RHEL 6.2,
where libxml2 treats the pattern [^\n] as excluding literal
backslash and n, instead of the intended newline, thus failing
to validate any domain name containing 'n'.
* docs/schemas/domaincommon.rng: Use literal newline instead.
The original doc entry for rawio didn't mention the values it could
have, the default, or the fact that setting it to "yes" for one disk
effectively set it to "yes" for all disks in the domain.
This patch adds a new attribute "rawio" to the "disk" element
of domain XML. Valid values of "rawio" attribute are "yes"
and "no".
rawio='yes' indicates the disk is desirous of CAP_SYS_RAWIO.
If you specify the following XML:
<disk type='block' device='lun' rawio='yes'>
...
</disk>
the domain will be granted CAP_SYS_RAWIO.
(of course, the domain have to be executed with root privilege)
NOTE:
- "rawio" attribute is only valid when device='lun'
- At the moment, any other disks you won't use rawio can use rawio.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
This patch addresses: https://bugzilla.redhat.com/show_bug.cgi?id=781562
Along with the "rombar" option that controls whether or not a boot rom
is made visible to the guest, qemu also has a "romfile" option that
allows specifying a binary file to present as the ROM BIOS of any
emulated or passthrough PCI device. This patch adds support for
specifying romfile to both passthrough PCI devices, and emulated
network devices that attach to the guest's PCI bus (just about
everything other than ne2k_isa).
One example of the usefulness of this option is described in the
bugzilla report: 82576 sriov network adapters don't provide a ROM BIOS
for the cards virtual functions (VF), but an image of such a ROM is
available, and with this ROM visible to the guest, it can PXE boot.
In libvirt's xml, the new option is configured like this:
<hostdev>
...
<rom file='/etc/fake/boot.bin'/>
...
</hostdev
(similarly for <interface>).
When support for the rombar option was added, it was only added for
PCI passthrough devices, configured with <hostdev>. The same option is
available for any network device that is attached to the guest's PCI
bus. This patch allows setting rombar for any PCI network device type.
After adding cases to test this to qemuxml2argv-hostdev-pci-rombar.*,
I decided to rename those files (to qemuxml2argv-pci-rom.*) to more
accurately reflect the additional tests, and also noticed that up to
now we've only been performing a domainschematest for that case, so I
added the "pci-rom" test to both qemuxml2argv and qemuxml2xml (and in
the process found some bugs whose fixes I squashed into previous
commits of this series).
Add kvmclock timer to documentation, schema and parsers. Keep the
platform timer first since it is kind of special, and alphabetize
the others when possible (i.e. when it does not change the ABI).
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The domain schema enforced restrictions on the domain name string that
the code doesn't. This patch relaxes the check, leaving the restrictions
on the driver or hypervisor. The only invalid character is a newline.
It's better to group all the metadata together. This is a
cosmetic output change; since the RNG allows interleave, it
doesn't matter where the user stuck it on input, and an XPath
query will find the same information when parsing the output.
* src/conf/domain_conf.c (virDomainDefFormatInternal): Output
metadata earlier.
* docs/formatdomain.html.in: Update documentation.
* tests/domainsnapshotxml2xmlout/metadata.xml: Update test.
* tests/qemuxml2xmloutdata/qemuxml2xmlout-metadata.xml: Likewise.
Applications can now insert custom nodes and hierarchies into domain
configuration XML. Although currently not enforced, applications are
required to use their own namespaces on every custom node they insert,
with only one top-level element per namespace.
There is now a standard QEMU guest agent that can be installed
and given a virtio serial channel
<channel type='unix'>
<source mode='bind' path='/var/lib/libvirt/qemu/f16x86_64.agent'/>
<target type='virtio' name='org.qemu.guest_agent.0'/>
</channel>
The protocol that runs over the guest agent is JSON based and
very similar to the JSON monitor. We can't use exactly the same
code because there are some odd differences in the way messages
and errors are structured. The qemu_agent.c file is based on
a combination and simplification of qemu_monitor.c and
qemu_monitor_json.c
* src/qemu/qemu_agent.c, src/qemu/qemu_agent.h: Support for
talking to the agent for shutdown
* src/qemu/qemu_domain.c, src/qemu/qemu_domain.h: Add thread
helpers for talking to the agent
* src/qemu/qemu_process.c: Connect to agent whenever starting
a guest
* src/qemu/qemu_monitor_json.c: Make variable static
This introduces new attribute wrpolicy with only supported
value as immediate. This will be an optional
attribute with no defaults. This helps specify whether
to skip the host page cache.
When wrpolicy is specified, meaning when wrpolicy=immediate
a writeback is explicitly initiated for the dirty pages in
the host page cache as part of the guest file write operation.
Usage:
<filesystem type='mount' accessmode='passthrough'>
<driver type='path' wrpolicy='immediate'/>
<source dir='/export/to/guest'/>
<target dir='mount_tag'/>
</filesystem>
Currently this only works with type='mount' for the QEMU/KVM driver.
Signed-off-by: Deepak C Shetty <deepakcs@linux.vnet.ibm.com>
The mode can be either of "custom" (default), "host-model",
"host-passthrough". The semantics of each mode is described in the
following examples:
- guest CPU is a default model with specified topology:
<cpu>
<topology sockets='1' cores='2' threads='1'/>
</cpu>
- guest CPU matches selected model:
<cpu mode='custom' match='exact'>
<model>core2duo</model>
</cpu>
- guest CPU should be a copy of host CPU as advertised by capabilities
XML (this is a short cut for manually copying host CPU specification
from capabilities to domain XML):
<cpu mode='host-model'/>
In case a hypervisor does not support the exact host model, libvirt
automatically falls back to a closest supported CPU model and
removes/adds features to match host. This behavior can be disabled by
<cpu mode='host-model'>
<model fallback='forbid'/>
</cpu>
- the same as previous returned by virDomainGetXMLDesc with
VIR_DOMAIN_XML_UPDATE_CPU flag:
<cpu mode='host-model' match='exact'>
<model fallback='allow'>Penryn</model> --+
<vendor>Intel</vendor> |
<topology sockets='2' cores='4' threads='1'/> + copied from
<feature policy='require' name='dca'/> | capabilities XML
<feature policy='require' name='xtpr'/> |
... --+
</cpu>
- guest CPU should be exactly the same as host CPU even in the aspects
libvirt doesn't model (such domain cannot be migrated unless both
hosts contain exactly the same CPUs):
<cpu mode='host-passthrough'/>
- the same as previous returned by virDomainGetXMLDesc with
VIR_DOMAIN_XML_UPDATE_CPU flag:
<cpu mode='host-passthrough' match='minimal'>
<model>Penryn</model> --+ copied from caps
<vendor>Intel</vendor> | XML but doesn't
<topology sockets='2' cores='4' threads='1'/> | describe all
<feature policy='require' name='dca'/> | aspects of the
<feature policy='require' name='xtpr'/> | actual guest CPU
... --+
</cpu>
In case a hypervisor doesn't support the exact CPU model requested by a
domain XML, we automatically fallback to a closest CPU model the
hypervisor supports (and make sure we add/remove any additional features
if needed). This patch adds 'fallback' attribute to model element, which
can be used to disable this automatic fallback.
We support <interface> of type "mcast", "server", and "client",
but the RNG schema for them are missed. Attribute "address" is
optional for "server" type. And these 3 types support
<mac address='MAC'/>, too.
Though <alias> is ignored when defining a domain, it can cause
failure if one validates (e.g. virt-xml-validate) the XML dumped
from a running domain. This patch expose it in domain RNG schema
for all the devices which support it.
The "unit" attribute of a drive address is optional in the code, so should
also be in the XML schema.
Signed-off-by: Michael Ellerman <michael@ellerman.id.au>
KVM will be able to use a PCI SCSI controller even on POWER. Let
the user specify the vSCSI controller by other means than a default.
After this patch, the QEMU driver will actually look at the model
and reject anything but auto, lsilogic and ibmvscsi.
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
The new introduced optional attribute "copy_on_read</code> controls
whether to copy read backing file into the image file. The value can
be either "on" or "off". Copy-on-read avoids accessing the same backing
file sectors repeatedly and is useful when the backing file is over a
slow network. By default copy-on-read is off.
