During a review, I've noticed this error message that was eventually
produced when I was trying to define a domain:

error: invalid argument: could not find capabilities for arch=mips64el
domaintype=(null)

Look at the (null). Why is it there? Well, during XML parsing, we try
to look up the default emulator for given OS type and possibly virt
type too. And this is the problem, because if we don't want to look up
by virt type, a -1 is passed to note this fact. Later, the code
handles -1 just right. Except for error message. When it is
constructed (in a very fabulous way I must say), the value is compared
to zero, not -1. And since we don't have any translation from -1 to a
virt type string, we just print (null).
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Signed-off-by: NAnthony PERARD <anthony.perard@citrix.com>

If a guest has multiple network devices with the same MAC address,
when we online update the second device, libvirtd always updates
the first one.

commit def31e4c forgot to fix the online updating scenario. We need to
use virDomainNetFindIdx() to find the correct network device.
Signed-off-by: NZhou Yimin <zhouyimin@huawei.com>
Signed-off-by: NZhang Bo <oscar.zhangbo@huawei.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1228007

When attaching a scsi volume lun via the attach-device --config or
--persistent options, there was no translation of the source pool
like there was for the live path, thus the attempt to modify the config
would fail since not enough was known about the disk.

A variable can't be named system, obviously. Well, it can if the
compiler is new enough to distinguish a variable named system and a
function call system(). And some older systems, don't have wise
compiler.

  CC     util/libvirt_util_la-virsysinfo.lo
cc1: warnings being treated as errors
../../src/util/virsysinfo.c: In function 'virSysinfoParseSystem':
../../src/util/virsysinfo.c:649: error: declaration of 'system' shadows a global declaration [-Wshadow]
/usr/include/stdlib.h:717: error: shadowed declaration is here [-Wshadow]
make[3]: *** [util/libvirt_util_la-virsysinfo.lo] Error 1
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

When reviewing some network patches, I've noticed we don't have
those switches to the 'net-list' command. We should. They are
merely copied over from 'list' command.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Instead of sticking to old code pattern use the one laid out by
cmdList. Use FILTER() macro instead of series of boolean
variables.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

We are using it to print a value that can't be NULL and does not need
any escaping anyway.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

With a few exceptions, we assume that qemu binary for given
architecture has form of qemu-system-$arch. Well, openrisc is yet
another exception. It's binary is called qemu-system-or32.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Move all the system_* fields into a separate struct. Not only this
simplifies the code a bit it also helps us to identify whether BIOS
info is present. We don't have to check all the four variables for
being not-NULL, but we can just check the pointer to the struct.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Move all the bios_* fields into a separate struct. Not only this
simplifies the code a bit it also helps us to identify whether BIOS
info is present. We don't have to check all the four variables for
being not-NULL, but we can just check the pointer to the struct.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Fairly recently we've introduced virnetservertest. This test has some
input data stored under tests/virnetserverdata which unfortunately was
not distributed among with the test. Therefore 'make distcheck'
failed. Fix this by adding the directory into EXTRA_DIST.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

I see no reason to duplicate this list of architectures. This also allows
more guest architectures to be used with libvirt (like the mips64el qemu
machine I am trying to run).
Signed-off-by: NJames Cowgill <james410@cowgill.org.uk>

Faster version of virJSONValueFromString(virJSONValueToString()).
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

This patch adds the support of queues attribute of the driver element
for vhost-user interface type. Example:

<interface type='vhostuser'>
      <mac address='52:54:00:ee:96:6d'/>
      <source type='unix' path='/tmp/vhost2.sock' mode='client'/>
      <model type='virtio'/>
      <driver queues='4'/>
</interface>

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1207692Signed-off-by: NMaxime Leroy <maxime.leroy@6wind.com>
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

The support for this was added in QEMU with commit
830d70db692e374b55555f4407f96a1ceefdcc97.  Unfortunately we have to do
another ugly version-based capability check.  The other option would be
not to check for the capability at all and leave that to qemu as it's
done with multiqueue tap devices.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Signed-off-by: NMaxime Leroy <maxime.leroy@6wind.com>
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Multi != One.  And indeed, libvirt behaves the same way for queues='1'
as without such setting.  Let's make it clear in the XML.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Store the cpu count in an intermediate variable and reuse it rather than
caluclating the index.

Additionally add a coverity silencing comment.

If a macro has a string value, the @string attribute will contain the
value. Otherwise @string attribute will be missing.

For example, the following macro definition from libvirt-domain.h:

 /**
  * VIR_MIGRATE_PARAM_URI:
  * ...
  */
 # define VIR_MIGRATE_PARAM_URI               "migrate_uri"

will result in

 <macro name='VIR_MIGRATE_PARAM_URI' file='libvirt-domain' string='migrate_uri'>
   <info><![CDATA[...]]></info>
 </macro>

https://bugzilla.redhat.com/show_bug.cgi?id=1229199Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

The virNetServer class has the ability to serialize its state
to a JSON file, and then re-load that data after an in-place
execve() call to re-connect to active file handles. This data
format is critical ABI that must have compatibility across
releases, so it should be tested...

The socket test suite has a function for checking if IPv4
or IPv6 are available, and returning a free socket. The
first bit of that will be needed in another test, so pull
that logic out into a separate helper method.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

By default, getaddrinfo() will return addresses for both
IPv4 and IPv6 if both protocols are enabled, and so the
RPC code will listen/connect to both protocols too. There
may be cases where it is desirable to restrict this to
just one of the two protocols, so add an 'int family'
parameter to all the TCP related APIs.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Based on recent list questions on how to contribute a translation fix.
Signed-off-by: NEric Blake <eblake@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1224587

The function takes two important arguments (among many others): @node
and @page_size. From these two a path under /sys is constructed. The
path is then used to read and write the desired size of huge pages
pool. However, if the path does not exists due to either @node or
@page_size having nonexistent value (e.g. there's no such NUMA node or
no page size like -2), an cryptic error message is produced:

  virsh # allocpages --pagesize 2049 --pagecount 8 --cellno -2
  error: Failed to open file '/sys/devices/system/node/node-2/hugepages/hugepages-2049kB/nr_hugepages': No such file or directory

Add two more checks to catch this and therefore produce much more
friendlier error messages.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

dnsmasq conf file contents needs to have quotes escaped for it to
work.  Because of this, the network-create/start for a network with
quotes in the name fails. The patch escapes strings for the entries
that go into the conf file.
Signed-off-by: NShivaprasad G Bhat <sbhat@linux.vnet.ibm.com>

The network name is currently of type "deviceName" but it should be
"text" as name is defined in the network.rng.
Signed-off-by: NShivaprasad G Bhat <sbhat@linux.vnet.ibm.com>

This patch fixes several formatting errors, which I
missed before pushing previous patches. Mostly because
of missing cppi package.

We are going to add block devices as disks for containers
not as filesystems.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

As we can add disks based on block devices to containers and bus type
doesn't have any meaning here, let us report always SATA for them.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

Since we are going to add block devices as root disks we have
to specify root mount point for boot block devices. But we
shouldn't do this if a filesystem disk with such
target mount point already exists.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

Statistics provided through PCS SDK. As we have only async interface in SDK we
need to be subscribed to statistics in order to get it. Trivial solution on
every stat request to subscribe, wait event and then unsubscribe will lead to
significant delays in case of a number of successive requests, as the event
will be delivered on next PCS server notify cycle. On the other hand we don't
want to keep unnesessary subscribtion. So we take an hibrid solution to
subcsribe on first request and then keep a subscription while requests are
active. We populate cache of statistics on subscribtion events and use this
cache to serve libvirts requests.

 * Cache details.
Cache is just handle to last arrived event, we call this cache
as if this handle is valid it is used to serve synchronous
statistics requests. We use number of successive events count
to detect that user lost interest to statistics. We reset this
count to 0 on every request. If more than PARALLELS_STATISTICS_DROP_COUNT
successive events arrive we unsubscribe. Special value of -1
of this counter is used to differentiate between subscribed/unsubscribed state
to protect from delayed events.

Values of PARALLELS_STATISTICS_DROP_COUNT and PARALLELS_STATISTICS_TIMEOUT are
just drop-ins, choosen without special consideration.

 * Thread safety issues
Use parallelsDomObjFromDomainRef in parallelsDomainBlockStats as
we could wait on domain lock down on stack in prlsdkGetStatsParam
and if we won't keep reference we could get dangling pointer
on return from wait.
Signed-off-by: NNikolay Shirokovskiy <nshirokovskiy@parallels.com>

Docs state that it should behave like eject. Currently the code does not
do that. This is a regression since f4b5f530.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1229592

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

We need to use qemu-system-aarch64 to run armv7l KVM VMs on an aarch64
host.

And it always has, so advertise it similarly to i686

qemu 2.3.0 added the -cpu host,aarch64=off option, which allows using
qemu-system-aarch64 KVM to run armv7l VMs.

Add a capabilities check for it, wire it up in qemu_command, and test
the command line generation.