Even though we have the machine locked throughout whole APIs we
are querying/modifying domain internal state. We should grab a
job whilst doing that.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Now that we have @flags we can support changing perf events just
in active or inactive configuration regardless of the other.
Previously, calling virDomainSetPerfEvents set events in both
active and inactive configuration at once. Even though we allow
users to set perf events that are to be enabled once domain is
started up. The virDomainGetPerfEvents API was flawed too. It
returned just runtime info.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

I've noticed that these APIs are missing @flags argument. Even
though we don't have a use for them, it's our policy that every
new API must have @flags.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

There are few lines off the indentation.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

They recently were extracted to a separate function. They don't belong
together though. Since -numa formatting is pretty compact, move it to
the main function and rename qemuBuildNumaCommandLine to
qemuBuildMemoryDeviceCommandLine.

When starting up a VM libvirtd asks numad to place the VM in case of
automatic nodeset. The nodeset would not be passed to the memory device
formatter and the user would get an error.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1269715

Commit 7068b56c introduced several hyperv features.  Not all hyperv
features are supported by old enough kernels and we shouldn't allow to
start a guest if kernel doesn't support any of the hyperv feature.

There is one exception, for backward compatibility we cannot error out
if one of the RELAXED, VAPIC or SPINLOCKS isn't supported, for the same
reason we ignore invtsc, to not break restoring saved domains with older
libvirt.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

This check is there to allow restore saved domain with older libvirt
where we included invtsc by default for host-passthrough model.  Don't
skip the whole function, but only the part that checks for invtsc.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>

Remove disabling domain death events from libxlDomainStart error
path. The domain death event is already disabled in libxlDomainCleanup.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

libxlDomainStart allocates and reserves resources that were not
being released in error paths. libxlDomainCleanup already handles
the job of releasing resources, and libxlDomainStart should call
it when encountering a failure.

Change the error handling logic to call libxlDomainCleanup on
failure. This includes acquiring the lease sooner and allowing
it to be released in libxlDomainCleanup on failure, similar to
the way other resources are reclaimed. With the lease now
released in libxlDomainCleanup, the release_dom label can be
renamed to cleanup_dom to better reflect its changed semantics.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Rename cleanup_dom label to destroy_dom, which better describes what
it does.
Signed-off-by: NJim Fehlig <jfehlig@suse.com>

Create a bitmap of iothreads that have scheduler info set so that the
transformation algorithm does not have to iterate the empty bitmap many
times. By reusing self-expanding bitmaps the bitmap size does not need
to be pre-calculated.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1264008

In some cases it's impractical to use the regular APIs as the bitmap
size needs to be pre-declared. These new APIs allow to use bitmaps that
self expand.

The new code adds a property to the bitmap to track the allocation of
memory so that VIR_RESIZE_N can be used.

 * Sync stubbed functions with prototypes
 * Add missing ATTRIBUTE_UNUSED where needed

Pushing under the build breaker rule.

Since commit v1.3.2-119-g1e34a8f9 which enabled debug-threads in QEMU
qemuGetProcessInfo would fail to parse stats for any thread with a space
in its name.

https://bugzilla.redhat.com/show_bug.cgi?id=1316803Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Move the function to qemu_domain.c and export them for further use.

Now that there are only two elements in the enum, let's change it to a
bool and rename the function similarly to the one added in previous
commit.

Introduce qemuDomainDiskChainElementRevoke that revokes the access
rather than having a flag to do so.

The function has terrible semantics. Split it into two functions.

qemu won't ever add those functions directly to QMP. They will be
replaced with 'blockdev-add' and 'blockdev-del' eventually. At this time
there's no need to keep the stubs around.

Additionally the drive_del stub in JSON contained dead code in the
attempt to report errors. (VIR_ERR_OPERATION_UNSUPPORTED was never
reported). Since the text impl does have the same message it is reported
anyways.

Functions no longer required for attaching SCSI disks since
QEMU_CAPS_DEVICE is expected.

We've started to assume support for QEMU_CAPS_DEVICE. Doing so in the
SCSI disk hotplug code allows us to drop a lot of ugly legacy code.

When libvirtd daemon restart, this patch will reenable those perf
events previously enabled.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-7-git-send-email-qiaowei.ren@intel.com

This patch adds new xml element, and so we can have the option of
also having perf events enabled immediately at startup.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-6-git-send-email-qiaowei.ren@intel.com

This patch implement the internal driver API for perf event into
qemu driver.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-5-git-send-email-qiaowei.ren@intel.com

This patch implement a set of interfaces for perf event. Based on
these interfaces, we can implement internal driver API for perf,
and get the results of perf conuter you care about.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-4-git-send-email-qiaowei.ren@intel.com

Add remote support for perf event.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-3-git-send-email-qiaowei.ren@intel.com

API agreed on in
https://www.redhat.com/archives/libvir-list/2015-October/msg00872.html

* include/libvirt/libvirt-domain.h (virDomainGetPerfEvents,
virDomainSetPerfEvents): New declarations.
* src/libvirt_public.syms: Export new symbols.
* src/driver-hypervisor.h (virDrvDomainGetPerfEvents,
virDrvDomainSetPerfEvents): New typedefs.
* src/libvirt-domain.c: Implement virDomainGetPerfEvents and
virDomainSetPerfEvents.
Signed-off-by: NQiaowei Ren <qiaowei.ren@intel.com>
Message-id: 1459171833-26416-2-git-send-email-qiaowei.ren@intel.com

If the pool creation thread happens to detect the luns in
the scsi target, the size parameters will be calculated as
part of the refreshPool called from storagePoolCreate().

This means the virStoragePoolFCRefreshThread (commit id
'512b8747') waiting to run and "refresh" the pool will
essentially double the allocation and capacity values.
A separate refresh would correct the values.

To avoid this, the FCRefreshThread needs to reinitialize
the pool size values prior to calling virStorageBackendSCSIFindLUs
which eventually calls virStorageBackendSCSINewLun and
updates the size values for each volume found.

After the recent commits the build didn't work for me. Fix it by
using size_t as the callback argument is using and the correct
formatter. The attempted fixup to use %llu as a formatter was wrong.

Commit e6336442 changed the 'out:' label to 'cleanup'  in
libxlDomainAttachNetDevice(), but missed a comment referencing
the 'out:' label. Remove it from the comment since it is no
longer accurate anyhow.

This patch adds support for "vpindex", "runtime", "synic",
"stimer", and "vendor_id" features available in qemu 2.5+.

- When Hyper-V "vpindex" is on, guest can use MSR HV_X64_MSR_VP_INDEX
to get virtual processor ID.

- Hyper-V "runtime" enlightement feature allows to use MSR
HV_X64_MSR_VP_RUNTIME to get the time the virtual processor consumes
running guest code, as well as the time the hypervisor spends running
code on behalf of that guest.

- Hyper-V "synic" stands for Synthetic Interrupt Controller, which is
lapic extension controlled via MSRs.

- Hyper-V "stimer" switches on Hyper-V SynIC timers MSR's support.
Guest can setup and use fired by host events (SynIC interrupt and
appropriate timer expiration message) as guest clock events

- Hyper-V "reset" allows guest to reset VM.

- Hyper-V "vendor_id" exposes hypervisor vendor id to guest.
Signed-off-by: NNikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

1. All hyperv features are tristate ones. So make tristate generating part common.
2. Reduce nesting on spinlocks.
Signed-off-by: NNikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

1. All hyperv features are tristate ones. So make tristate parsing code common.
2. Reindent switch statement.
3. Reduce nesting in spinlocks parsing.
Signed-off-by: NNikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

After the patches that added tracking of in-use macvtap names (commit
370608, first appearing in libvirt-1.3.2), if the function to allocate
a new macvtap device came to a device name created outside libvirt, it
would retry the same device name MACVLAN_MAX_ID (8191) times before
finally giving up in failure.

The problem was that virBitmapNextClearBit was always being called
with "0" rather than the value most recently checked (which would
increment each time through the loop), so it would always return the
same id (since we dutifully release that id after failing to create a
new device using it).

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1321546Signed-off-by: NLaine Stump <laine@laine.org>

For those VF allocated from a network pool, we need to set its backend
to be VIR_DOMAIN_HOSTDEV_PCI_BACKEND_XEN so that later work can be
correct.
Signed-off-by: NChunyan Liu <cyliu@suse.com>

This reverts commit bb5f2dc9.

The "if (vol->target.format != VIR_STORAGE_FILE_RAW)" check in the
createVol backend. This check is bogus because virStorageVolDefParseXML()
in conf/storage_conf.c sets target.format only if volOptions in
virStoragePoolTypeInfo has formatFromString set, and that's not the
case the zfs backend.

So the check always fails and breaks volume creation.