Even though we got both the original CPU (used for starting a domain)
and the updated version (the CPU really provided by QEMU) during
incoming migration, restore, or snapshot revert, we still need to update
the CPU according to the data we got from the freshly started QEMU.
Otherwise we don't know whether the CPU we got from QEMU matches the one
before migration. We just need to keep the original CPU in
priv->origCPU.

Messed up by me in v3.4.0-58-g8e34f478.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>
Reviewed-by: NPavel Hrdina <phrdina@redhat.com>

This function is called unconditionally from qemuProcessStop to
make sure we leave no dangling dirs behind. However, whenever the
directory we want to rmdir() is not there (e.g. because it hasn't
been created in the first place because domain doesn't use
hugepages at all), we produce a warning like this:

2017-06-20 15:58:23.615+0000: 32638: warning :
qemuProcessBuildDestroyHugepagesPath:3363 : Unable to remove
hugepage path: /dev/hugepages/libvirt/qemu/1-instance-00000001
(errno=2)

Fix this by not producing the warning on ENOENT.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NMartin Kletzander <mkletzan@redhat.com>

Part of the condition was reverted so no value update was propagated
through.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1414627Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Similarly to how we specify the groups of 5 capabilities in the header
file move the labels to separate line also for the VIR_ENUM_IMPL part.

This simplifies rebase conflict resolution in the capability file since
only lines have to be shuffled around, but they don't need to be edited.

Some callers don't need to know the backing format. Make the argument
optional by using a dummy int if NULL is passed.

Commit 7456c4f5 introduced a regression by not reloading the backing
chain of a disk after snapshot. The regression was caused as
src->relPath was not set and thus the block commit code could not
determine the relative path.

This patch adds code that will load the backing store string if
VIR_DOMAIN_SNAPSHOT_CREATE_REUSE_EXT and store it in the correct place
when a snapshot is successfully completed.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1461303

It is necessary for some parts of the code to refresh just data
based on the based on the backing store string. Add a convenience
function that will retrieve this data.

Calls to qemuDomainDiskChainElementPrepare resets the original error,
thus we need to save it in the cleanup path of qemuDomainBlockCommit.

Changing labelling of the images does not need to happen after setting
the labeling and lock manager access. This saves the cleanup of the
labeling if the relative path can't be determined.

Signed-off-by: NFarhan Ali <alifm@linux.vnet.ibm.com>

Check for the LOADPARM capabilility and potentially add a loadparm=x to
the "-machine" string for the QEMU command line.

Also add xml2argv test cases for loadparm.
Signed-off-by: NFarhan Ali <alifm@linux.vnet.ibm.com>
Reviewed-by: NBjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: NBoris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: NMarc Hartmayer <mhartmay@linux.vnet.ibm.com>

Add new capability for the "-machine loadparm" QEMU option.

Add the capabilities replies/xml for s390x for QEMU 2.9.50.
Signed-off-by: NFarhan Ali <alifm@linux.vnet.ibm.com>

Update the per device boot schema to add an optional loadparm parameter.

eg: <boot order='1' loadparm='2'/>

Extend the virDomainDeviceInfo to support loadparm option.
Modify the appropriate functions to parse loadparm from boot device xml.
Add the xml2xml test to validate the field.
Signed-off-by: NFarhan Ali <alifm@linux.vnet.ibm.com>
Reviewed-by: NBjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: NBoris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: NMarc Hartmayer <mhartmay@linux.vnet.ibm.com>

Only qemuBuildFSDevStr missed the return check.

Since qemu 2.9 the options changed from a monolithic string into fine
grained options for the json pseudo-protocol object.

Since qemu 2.9 the options changed from a monolithic string into fine
grained options for the json pseudo-protocol object.

Since qemu 2.9 the options changed from a monolithic string into fine
grained options for the json pseudo-protocol object.

Since 2.9 the host and port for NBD are no longer directly under the
json pseudo-protocol object, but rather belong to a sub-object called
'server'.

Starting from qemu 2.9, more granular options are supported. Add parser
for the relevant bits.

With this patch libvirt is able to parse the host and target IQN of from
the JSON pseudo-protocol specification.

This corresponds to BlockdevOptionsIscsi in qemu qapi.

Merge the reporting of the missing source host data into the parser
functions so that callers don't have to do it separately.

Few backing protocols support only TCP. Split out the function which
will correspond to parsing qemu's InetSocketAddressBase.

'SocketAddress' structure was changed to contain 'inet' instead of
'tcp' since qemu commit c5f1ae3ae7b. Existing entries have a backward
compatibility layer.

Libvirt will parse 'inet' and 'tcp' as equivalents.

It was added in commit 6c2e4c38
so that Coverity would not complain about passing -1 to
qemuDomainDetachThisHostDevice(), but the function in question
has changed since and so the annotation doesn't apply anymore.
Signed-off-by: NAndrea Bolognani <abologna@redhat.com>
Reviewed-by: NPavel Hrdina <phrdina@redhat.com>

The same json strucutre is used for NBD and sheepdog volumes for
specifying of the host. Rename the function and fix up error messages to
be more universal.

If the number of servers is not expected the code would report an error
but would not return failure.

When added in multiple previous commits, it was used only with -device
qxl(-vga), but for some QEMUs (< 1.6) we need to add this
functionality when using -vga qxl as well.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1283207Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

In the case that virtlogd is used as stdio handler we pass to QEMU
only FD to a PIPE connected to virtlogd instead of the file itself.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1430988Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
Reviewed-by: NMartin Kletzander <mkletzan@redhat.com>

Improve the code to decide whether to use virtlogd or not by checking
the same variable that is updated in qemuProcessPrepareDomain().
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

In QEMU driver we can use virtlogd as stdio handler for source backend
of char devices if current QEMU is new enough and it's enabled in
qemu.conf.  We should store this information while starting a guest
because the config option may change while the guest is running.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

Signed-off-by: NPavel Hrdina <phrdina@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1431112

Imagine a FS mounted on /dev/blah/blah2. Our process of creating
suffix for temporary location where all the mounted filesystems
are moved is very simplistic. We want:

/var/run/libvirt/qemu/$domName.$suffix\

were $suffix is just the mount point path stripped of the "/dev/"
prefix. For instance:

/var/run/libvirt/qemu/fedora.mqueue  for /dev/mqueue
/var/run/libvirt/qemu/fedora.pts     for /dev/pts

and so on. Now if we plug /dev/blah/blah2 into the example we see
some misbehaviour:

/var/run/libvirt/qemu/fedora.blah/blah2

Well, misbehaviour if /dev/blah/blah2 is a file, because in that
case we call virFileTouch() instead of virFileMakePath().
The solution is to replace all the slashes in the suffix with say
dots. That way we don't have to care about nested directories.
IOW, the result we want for given example is:

/var/run/libvirt/qemu/fedora.blah.blah2
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1431112

There can be nested mount points. For instance /dev/shm/blah can
be a mount point and /dev/shm too. It doesn't make much sense to
return the former path because callers preserve the latter (and
with that the former too). Therefore prune nested mount points.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1431112

After 290a00e4 we know how to deal with file mount points.
However, when cleaning up the temporary location for preserved
mount points we are still calling rmdir(). This won't fly for
files. We need to call unlink(). Now, since we don't really care
if the cleanup succeeded or not (it's the best effort anyway), we
can call both rmdir() and unlink() without need for
differentiation between files and directories.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NJohn Ferlan <jferlan@redhat.com>

On some platforms the number of bits in the cbm_mask might not be
divisible by 4 (and not even by 2), so we need to properly count the
bits.  Similar file, min_cbm_bits, is properly parsed and used, but if
the number is greater than one, we lose the information about
granularity when reporting the data in capabilities.  For that matter
always report granularity, but if it is not the same as the minimum,
add that information in there as well.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

When setting up VncTLS according to the official Libvirt documentation,
only one certificate for libvirt/libvirt-vnc is used. The document
indicates to use the following directories :

 /etc/pki/CA
 /etc/pki/libvirt
 /etc/pki/libvirt/private

in order to manage the certificates used by libvirt-vnc.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/901272Signed-off-by: NChristian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: NStefan Bader <stefan.bader@canonical.com>

Signed-off-by: NChristian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: NStefan Bader <stefan.bader@canonical.com>

On Debian/Ubuntu the libxl-save-helper (used when saving/restoring
a domain through libxl) is located under /usr/lib/xen-<version>/bin.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/1334195Signed-off-by: NChristian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: NStefan Bader <stefan.bader@canonical.com>

Updates profile to allow running on ppc64el.

Bug-Ubuntu: https://bugs.launchpad.net/bugs/1374554Signed-off-by: NChristian Ehrhardt <christian.ehrhardt@canonical.com>
Signed-off-by: NStefan Bader <stefan.bader@canonical.com>