With current perf framework, this patch adds support and documentation
for more perf events, including cache misses, cache references, cpu cycles,
and instructions.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>

Introduce a static attr table and refactor virPerfEventEnable() for
general purpose usage.

This patch creates a static table/matrix that converts the VIR_PERF_EVENT_*
events into their respective "attr.type" and "attr.config" so that
virPerfEventEnable doesn't have the switch the calling function passes
by value the 'type'.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>

Move them to the bottom under the #ifdef code.

Should be easier to read

Keep the details in one place...

Add to some details for the existing enum

Remove the unnecessary switch since all VIR_PERF_EVENT* values are fetched

This patch rename qemuDomainGetStatsPerfRdt() to
qemuDomainGetStatsPerfOneEvent()
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>

Since the domain lock is not held during preparation of an external XML
config, it is possible that the value can change resulting in unexpected
failures during ABI consistency checking for some save and migrate
operations.

This patch adds a new flag to skip the checking of the cur_balloon value
and then sets the destination value to the source value to ensure
subsequent checks without the skip flag will succeed.

This way it is protected from forges and is keeped up to date too.
Signed-off-by: NNikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>

xen-xm doesn't support mult serial devices at all, so these tests are
meaningless.
Signed-off-by: NBob Liu <bob.liu@oracle.com>

Adding tests for domXML <-> xl.cfg conversions containing multiple
serial devices.
Signed-off-by: NBob Liu <bob.liu@oracle.com>

xen-xm doesn't support multi serial at all, this patch drop the
domXML <-> xl.cfg conversions.
Signed-off-by: NBob Liu <bob.liu@oracle.com>

Add support for multi serial devices, after this patch virsh can be used to
connect different serial devices of running domains. E.g.
vish # console <xxx> --devname serial<xxx>

Note:
This depends on a xen/libxl bug fix to have libxl_console_get_tty(...) correctly
returning the tty path (as opposed to always returning the first one).
[0] https://lists.xen.org/archives/html/xen-devel/2016-08/msg00438.htmlSigned-off-by: NBob Liu <bob.liu@oracle.com>

libvirt uses the new_id PCI sysfs interface to bind a PCI stub driver
to a PCI device. The new_id interface is known to be buggy and racey,
hence a more deterministic interface was introduced in the 3.12 kernel:
driver_override. For more details see

https://www.redhat.com/archives/libvir-list/2016-June/msg02124.html

For more details about the driver_override interface and examples of
its usage, see

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/drivers/pci/pci-driver.c?h=v3.12&id=782a985d7af26db39e86070d28f987cad21313c0

This patch adds support for the driver_override interface by

- adding new virPCIDevice{BindTo,UnbindFrom}StubWithOverride functions
  that use the driver_override interface
- renames the existing virPCIDevice{BindTo,UnbindFrom}Stub functions
  to virPCIDevice{BindTo,UnbindFrom}StubWithNewid to perserve existing
  behavior on new_id interface
- changes virPCIDevice{BindTo,UnbindFrom}Stub function to call one of
  the above depending on availability of driver_override

The patch includes a bit of duplicate code, but allows for easily
dropping the new_id code once support for older kernels is no
longer desired.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

libxl only has API to address the host USB devices by bus/device.
Find the bus/device if the user only provided the vendor/product
of the USB device.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Finding an USB device from the vendor/device values will be needed
by libxl driver to convert from vendor/device to bus/dev addresses.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

The 'multi' element in PCI address struct used as 'virTristateSwitch',
and its default value is 'VIR_TRISTATE_SWITCH_ABSENT'. Current PCI
process use 'false' to initialization 'multi', which is ambiguously
for assignment or comparison. This patch use '{0}' to initialize
the whole PCI address struct, which fix the 'multi' initialization
and makes code more simplify and explicitly.
Signed-off-by: NXian Han Yu <xhyubj@linux.vnet.ibm.com>

Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

* docs/news.html.in: update for release
* po/*po*: regenerate

--postcopy-after-precopy is just an aditional flag for
postcopy migration.
Signed-off-by: NKothapally Madhu Pavan <kmp@linux.vnet.ibm.com>

When we wanted to break huge and unmaintainable virsh into
smaller files first thing we did was to just move funcs into
virsh-.c files and then #include them from virsh. Having it done
this way we also needed to have them listed under EXTRA_DIST.
However, things got changed since then and now all the virsh-*.c
files are proper source files. Therefore they are listed under
virsh_SOURCES too. But for some reason we forgot to remove them
from EXTRA_DIST.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

The libxl driver has long supported migration V3 but has never
indicated so in the connectSupportsFeature API. As a result, apps
such as virt-manager that use the more generic virDomainMigrate API
fail with

libvirtError: this function is not supported by the connection driver:
virDomainMigrate

Add VIR_DRV_FEATURE_MIGRATION_V3 to the list of features marked as
supported in the connectSupportsFeature API.

Test 12 from objecteventtest (createXML add event) segaults on FreeBSD
with bus error.

At some point it calls testNodeDeviceDestroy() from the test driver. And
it fails when it tries to unlock the device in the "out:" label of this
function.

Unlocking fails because the previous step was a call to
virNodeDeviceObjRemove from conf/node_device_conf.c. This function
removes the given device from the device list and cleans up the object,
including destroying of its mutex. However, it does not nullify the pointer
that was given to it.

As a result, we end up in testNodeDeviceDestroy() here:

 out:
    if (obj)
        virNodeDeviceObjUnlock(obj);

And instead of skipping this, we try to do Unlock and fail because of
malformed mutex.

Change virNodeDeviceObjRemove to use double pointer and set pointer to
NULL.

As bhyve currently doesn't use controller addressing and simply
uses 1 implicit controller for 1 disk device, the scheme looks the
following:

 pci addrees -> (implicit controller) -> disk device

So in fact we identify disk devices by pci address of implicit
controller and just pass it this way to bhyve in a form:

 -s pci_addr,ahci-(cd|hd),/path/to/disk

Therefore, we cannot use virDeviceInfoPCIAddressWanted() because it
does not expect that disk devices might need PCI address assignment.

As a result, if a disk was specified without address, it will not be
generated and domain will to start.

Until proper controller addressing is implemented in the bhyve
driver, force each disk to have PCI address generated if it was not
specified by user.

Unlike postcopy migration there is no --live flag check for
postcopy-after-precopy.
Signed-off-by: NKothapally Madhu Pavan <kmp@linux.vnet.ibm.com>

The iothread example for virtio-scsi should be
<driver iothread='4'/> rather than <driver iothread='4'>
for the XML to be valid.

../../src/conf/domain_conf.c:4425:21: error: potential null pointer dereference [-Werror=null-dereference]
         switch (vcpu->hotpluggable) {
                 ~~~~^~~~~~~~~~~~~~

Setting vcpu count when cpu topology is specified may result into an
invalid configuration. Since the topology can't be modified, reject the
setting if it doesn't match the requested topology. This will allow
fixing the topology in case it was broken.

Partially fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1370066

Validating the vcpu count is more intricate and doing it in the XML
parser will make previously valid configs (with older qemus) vanish.

Now that we have a very similar check in the qemu domain validation
callback we can do it in a more appropriate place.

This basically reverts commit b54de083.

Partially resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1370066

Make it clear that vcpu order is valid for online vcpus only and state
that it has to be specified for all vcpus or not provided at all.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1370043

ce43cca0 refactored the helper to prepare it for sparse topologies but
forgot to fix the iterator used to fill the structures. This would
result into a weirdly sparse populated array and possible out of bounds
access and crash once sparse vcpu topologies were allowed.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1369988

virVcpuInfo contains the vcpu number that the data refers to. Report
what's returned by the daemon rather than the sequence number as with
sparse vcpu topologies they won't match.

We should query bus type for containers too, like for VM.
In openstack we add volume disk like SCSI, so we can't
hardcode SATA bus.

While dettaching/attaching device in OpenStack, nova
calls vzDomainDettachDevice twice, because the update of the internal
configuration of the ct comes a bit latter than the update event.
As the result, we suffer from the second call to dettach the same device.
Signed-off-by: NOlga Krishtal <okrishtal@virtuozzo.com>

libvirt-python passes parameter bandwidth = 0
by default. This means that bandwidth is unlimited.
VZ driver doesn't support bandwidth rate limiting,
but we still need to handle it and fail if bandwidth > 0.
Signed-off-by: NPavel Glushchak <pglushchak@virtuozzo.com>

* Added VIR_MIGRATE_LIVE, VIR_MIGRATE_UNDEFINE_SOURCE and
  VIR_MIGRATE_PERSIST_DEST to supported migration flags
Signed-off-by: NPavel Glushchak <pglushchak@virtuozzo.com>

When support for auto-creating tap devices was added to <interface
type='ethernet'> in commit 9c17d6, the code assumed that
virNetDevTapCreate() would honor the VIR_NETDEV_TAP__CREATE_IFUP flag
that is supported by virNetDevTapCreateInBridgePort(). That isn't the
case - the latter function performs several operations, and one of
them is setting the tap device online. But virNetDevTapCreate() *only*
creates the tap device, and relies on the caller to do everything
else, so qemuInterfaceEthernetConnect() needs to call
virNetDevSetOnline() after the device is successfully created.

The linkstate setting of an <interface> is only meant to change the
online status reported to the guest system by the emulated network
device driver in qemu, but when support for auto-creating tap devices
for <interface type='ethernet'> was added in commit 9717d6, a chunk of
code was also added to qemuDomainChangeNetLinkState() that sets the
online status of the tap device (i.e. the *host* side of the
interface) for type='ethernet'. This was never done for tap devices
used in type='bridge' or type='network' interfaces, nor was it done in
the past for tap devices created by external scripts for
type='ethernet', so we shouldn't be doing it now.

This patch removes the bit of code in qemuDomainChangeNetLinkState()
that modifies online status of the tap device.

The call to virNetDevIPInfoAddToDev() that sets up tap device IP
addresses and routes was somehow incorrectly placed in
qemuInterfaceStopDevice() instead of qemuInterfaceStartDevice() in
commit fe8567f6.  This fixes that error by moving the call to
virNetDevIPInfoAddToDev() to qemuInterfaceStartDevice().
Signed-off-by: NVasiliy Tolstov <v.tolstov@selfip.ru>