Commit Graph

23784 Commits

Author SHA1 Message Date
Michal Privoznik
1758ee4a94 securityselinuxlabeltest: Prefer virGetLastErrorMessage() over virGetLastError
At the beginning of the test, some preparation work is done. For
instance new virSecurityManager is created. If this fails for
whatever reason, we try to fetch the latest error and print the
error message contained in it. However, if there's a bug in our
code and no error is reported, this approach will lead to crash,
while with virGetLastErrorMessage() it won't.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-08-04 15:32:20 +02:00
Michal Privoznik
84b476e2bd virqemu: Reflect return type of virJSONValueArraySize()
The virJSONValueArraySize() function return ssize_t (with
possibly returning -1 if the passed json is not an array).
Storing the return value into size_t is possibly dangerous then.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-08-04 15:30:38 +02:00
Peter Krempa
041f35340b qemu: domain: Simplify return values of qemuDomainRefreshVcpuInfo
Call the vcpu thread info validation separately to decrease complexity
of returned values by qemuDomainRefreshVcpuInfo.

This function now returns 0 on success and -1 on error. Certain
failures of qemu to report data are still considered as success. Any
error reported now is fatal.
2016-08-04 08:08:40 +02:00
Peter Krempa
2bdc300a34 qemu: domain: Improve vCPU data checking in qemuDomainRefreshVcpu
Validate the presence of the thread id according to state of the vCPU
rather than just checking the vCPU count. Additionally put the new
validation code into a separate function so that the information
retrieval can be split from the validation.
2016-08-04 08:08:31 +02:00
Peter Krempa
5965fa759c qemu: monitor: Rename qemuMonitor(JSON|Text)GetCPUInfo
Use a name that contains the command used to get the information.
2016-08-04 08:03:58 +02:00
Peter Krempa
8f56b5baaf qemu: domain: Rename qemuDomainDetectVcpuPids to qemuDomainRefreshVcpuInfo
The function will eventually do more useful stuff than just detection of
thread ids.
2016-08-04 08:03:58 +02:00
Peter Krempa
dd976f786c qemu: Improve error message in virDomainGetVcpus
If the VM is offline we can't retrieve the runtime statistical
information. Pinning could be retrieved but there are separate APIs for
that.
2016-08-04 08:03:46 +02:00
Peter Krempa
0f889e725e qemu: monitor: Add do-while block to QEMU_CHECK_MONITOR_FULL
Assure that it's just one statement to avoid problems when used with
conditions.
2016-08-04 08:03:46 +02:00
Peter Krempa
78806cd21b qemu: monitor: Add monitor API for device_add supporting JSON objects
Rather than formatting a string and splitting it back to a JSON object
add API that will take a JSON object directly.
2016-08-04 08:01:29 +02:00
Cole Robinson
e584615b81 conf: events: Fix coverity warning
Since 2bfa75134 virObjectEventNew can be passed a NULL 'uuid' value,
so drop the ATTRIBUTE_NONNULL annotation
2016-08-03 18:45:50 -04:00
Jim Fehlig
c0960aab7e libxl: allow libxl to calculate shadow mem requirements
Long, long ago before libxl_get_required_shadow_memory() was
made publicly available, its code was copied to the libxl driver
for calculating shadow memory requirements of HVM domains.

Long ago, libxl_get_required_shadow_memory() was exported in
libxl_utils.h and included in xen-devel packages everywhere.

Remove the copied code, which has become stale, and let libxl
provode a proper shadow memory value.
2016-08-03 14:07:23 -06:00
John Ferlan
e4e4d17c9c qemu: Add support to get/set IOThread period and quota cgroup values
https://bugzilla.redhat.com/show_bug.cgi?id=1356937

Add support for IOThread quota/bandwidth and period parameters for non
session mode. If in session mode, then error out.  Uses all the same
places where {vcpu|emulator|global}_{period|quota} are adjusted and
adds the iothread values.
2016-08-03 06:36:22 -04:00
John Ferlan
2197ea56d7 conf: Add IOThread quota and period scheduler/cputune defs
https://bugzilla.redhat.com/show_bug.cgi?id=1356937

Add the definitions to allow for viewing/setting cgroup period and quota
limits for IOThreads.

This is similar to the work done for emulator quota and period by
commit ids 'b65dafa' and 'e051c482'.

Being able to view/set the IOThread specific values is related to more
recent changes adding global period (commmit id '4d92d58f') and global
quota (commit id '55ecdae') definitions and qemu support (commit id
'4e17ff79' and 'fbcbd1b2'). With a global setting though, if somehow
the IOThread value in the cgroup hierarchy was set "outside of libvirt"
to a value that is incompatible with the global value.

Allowing control over IOThread specific values provides the capability
to alter the IOThread values as necessary.
2016-08-03 06:36:22 -04:00
Daniel P. Berrange
24555136bf Don't error when attaching security label of model "none"
If you invoke virDomainLxcEnterSecurityLabel() on security
model of "none" it will report an error. Logically a "none"
security model should be treated as a no-op, so we should
just return success immediately, instead of an error.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-08-03 10:58:31 +01:00
Daniel P. Berrange
9cf3c44ff5 qemu: only report errno in trace message on failure
Avoid reporting a stale errno value when the syscall succeeds,
instead always pass 0.

Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
2016-08-03 10:54:38 +01:00
Peter Krempa
8dbc95cbd1 virsh: qemu-monitor-command: Don't print extra newline with --pretty
The prettified JSON string already contains a newline so don't print
another one. This allows to pipe the json output (in conjunction with
the --quiet option) to files without having to truncate them afterwards.
2016-08-02 16:21:53 +02:00
Peter Krempa
27bdc0af00 tests: Make schema test fail on XML schema errors
Failure to parse the schema file would not trigger a test suite failure.

In addition to making the test fail it's necessary to split up the
parsing of the schema file into a separate test.

This is necessary as the XML validator uses libvirt errors to report
problems parsing of the actual schema RNG needs to be split out into a
separate function and called via virTestRun which has the
infrastructure to report them.
2016-08-02 16:21:08 +02:00
Peter Krempa
6293644eb0 remote: Fix indentation of the remote protocol structs check file 2016-08-02 16:17:40 +02:00
John Ferlan
1149fe4c15 qemu: Use the hostdev alias in qemuDomainAttachHostSCSIDevice error path
https://bugzilla.redhat.com/show_bug.cgi?id=1289391

Rather than pass the whole drive string (which contained the alias),
pass only the alias for the qemuMonitorDriveDel call in the error
path when adding a host device in the monitor fails.
2016-08-02 10:11:11 -04:00
John Ferlan
8527a25b32 qemu: Use qemuAliasFromHostdev
When building the command line alias and for SCSI Host Device deletion,
use the common API to build the alias
2016-08-02 10:11:11 -04:00
John Ferlan
647bc753d4 qemu: Introduce qemuAliasFromHostdev
Introduce a common API to generate the alias for a host device
2016-08-02 10:11:11 -04:00
John Ferlan
97ca6eed9a qemu: Add attempt to call qemuMonitorDriveDel for AttachSCSI failure path
Completion of fix for:
    https://bugzilla.redhat.com/show_bug.cgi?id=1336225

Similar to the other disk types, add the qemuMonitorDriveDel in the failure
to add/hotplug a SCSI disk.
2016-08-02 10:11:11 -04:00
John Ferlan
190e22c06b qemu: Add attempt to call qemuMonitorDriveDel for USB failure path
Partial fix for:
    https://bugzilla.redhat.com/show_bug.cgi?id=1336225

Similar to the other disk types, add the qemuMonitorDriveDel in the failure
to add/hotplug a USB.

Added a couple of other formatting changes just to have a less cluttered look
2016-08-02 10:11:11 -04:00
John Ferlan
dd0dbe1d66 qemu: Make QEMU_DRIVE_HOST_PREFIX more private
Move QEMU_DRIVE_HOST_PREFIX into the qemu_alias.c to dissuade future
callers from using it. Create qemuAliasDiskDriveSkipPrefix in order
to handle the current consumers that desire to check if an alias has
the drive- prefix and "get beyond it" in order to get the disk alias.
2016-08-02 10:11:11 -04:00
John Ferlan
f0f16c1e28 qemu: Use qemuAliasFromDisk to generate drive alias
Rather than open code build the drive alias command in multiple places,
use the helper to ensure consistency.
2016-08-02 10:11:11 -04:00
John Ferlan
13effcafd2 qemu: Use qemuAliasFromDisk instead of qemuDeviceDriveHostAlias
Since we already have a function that will generate the drivestr from
the alias, let's use it and remove the qemuDeviceDriveHostAlias.

Move the QEMU_DRIVE_HOST_PREFIX definition into qemu_alias.h

Also alter qemuAliasFromDisk to use the QEMU_DRIVE_HOST_PREFIX instead
of "drive-%s".
2016-08-02 10:11:11 -04:00
John Ferlan
30c3982bda qemu: Use qemuAliasFromDisk to generate drive alias
The qemuDomainSnapshotCreateSingleDiskActive open coded generating the
disk drive alias. Let's use the common function.
2016-08-02 10:11:11 -04:00
John Ferlan
f8d49d5b9f qemu: Remove generation of drive alias from qcow passphrase backends
Rather than pass the disks[i]->info.alias to qemuMonitorSetDrivePassphrase
and then generate the "drive-%s" alias from that, let's use qemuAliasFromDisk
prior to the call to generate the drive alias and then pass that along
thus removing the need to generate the alias from the monitor code.
2016-08-02 10:11:11 -04:00
John Ferlan
675a7e4ec1 qemu: Reorder qemuDomainAttachUSBMassStorageDevice failure path
Modify the error/exit path to match what was done for Virtio and SCSI.
If nothing else it'll have a consistent look'n'feel
2016-08-02 10:11:11 -04:00
Jovanka Gulicoska
f803f5ff34 event-test: support node device lifecycle event APIs 2016-08-02 09:52:00 -04:00
Jovanka Gulicoska
546fa3ef67 node_device: Implement event queue in udev 2016-08-02 09:52:00 -04:00
Jovanka Gulicoska
bb7513eae2 node_device: implement node device lifecycle event APIs 2016-08-02 09:52:00 -04:00
Jovanka Gulicoska
9b13df379c remote: implement node device lifecycle event APIs 2016-08-02 09:52:00 -04:00
Jovanka Gulicoska
1f12580a64 test: implement node device lifecycle event APIs
Also includes unittests for node device lifecycle events API
2016-08-02 09:52:00 -04:00
Jovanka Gulicoska
9806ae04dd conf: add node_device_event handling
Add node device event handling infrastructure to node_device_event.[ch]
2016-08-02 09:52:00 -04:00
Jovanka Gulicoska
fcabc1ca53 Introduce node device lifecycle event APIs
Node device lifecycle event API entry points for registering and
deregistering node deivce events, as well as types of events
associated with node device.
These entry points will be used for implementing asynchronous
lifecycle events.

Node device API:
virConnectNodeDeviceEventRegisterAny
virConnectNodeDeviceEventDeregisterAny
virNodeDeviceEventLifecycleType which has events CREATED and DELETED
2016-08-02 09:52:00 -04:00
Nikolay Shirokovskiy
b0c144c579 qemu: Set fake reboot flag to false when mode=agent
As commit id 'e2b86f580' notes, when mode=agent possibly setting the
fake reboot flag to true wouldn't be necessary; however, it doesn't
"force" the issue by just ensuring the fake reboot is false, so this
patch adds the explicit setting for the reboot path.

More investigation and details can be found in commit id '8be502fd'
as well as in the archives at:

  https://www.redhat.com/archives/libvir-list/2015-April/msg00715.html
2016-08-02 09:28:32 -04:00
Nikolay Shirokovskiy
3b676eb67f qemu: Set fake reboot flag only in acpi mode for shutdown
Conditional setting of the fake reboot flag should only happen for
the acpi mode shutdown path; however, for the agent mode shutdown,
the fake reboot should be cleared. This patch will essentially revert
commit id '8be502fd', but adds an explicit setting of the flag to false
when using mode=agent while also only conditionally setting the reboot
flag if the guest went away. This also avoids an issue where a shutdown
with reboot semantics is done from agent mode which sets the reboot
flag followed by a shutdown from within the guest which would result
in a reboot due to the fake reboot flag being set. The change will
also properly handle the cases described in the following archive post:

  https://www.redhat.com/archives/libvir-list/2015-April/msg00715.html
2016-08-02 09:28:32 -04:00
John Ferlan
172218a01e libxl: Fix broken build attach/detach controller device
Commit id '44304c6eb' added the API libxlDomainAttachControllerDevice
inside a conditional LIBXL_HAVE_PVUSB, but called that function outside
the conditional in libxlDomainAttachDeviceLive.

Similarly, the API libxlDomainDetachControllerDevice was added inside a
conditional LIBXL_HAVE_PVUSB, but called outside the conditional in
libxlDomainDetachDeviceLive.

This patch adds the conditional LIBXL_HAVE_PVUSB around those two calls
from within the switch.
2016-08-02 09:20:32 -04:00
John Ferlan
1bfdd95641 libxl: Fix broken build from libxlDomainCleanup
Commit id '7d3b2eb5' missed a closing parenthesis on the ignore_value
macro, causing the failure
2016-08-02 09:18:56 -04:00
Erik Skultety
238b20b47f rpc: virnetserver: Remove dead code checking the client limits
Prior to commit 2737aaaf, we allowed every client to connect successfully,
however, if accepting a client would eventually lead to an overcommit of the
limits, we would disconnect it immediately with "Too many active clients,
dropping connection from...". Recent changes refactored the code in a way, that
it is not possible for the client-related callback to be dispatched and the
client to be accepted if the limits wouldn't permit to do so, therefore a check
if a connection should be dropped due to limits violation has become a dead
code that could be removed.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-08-02 14:51:13 +02:00
Erik Skultety
e9ce8a7d24 admin: rpc: virnetserver: Fix updating of the client limits
Commit 2737aaaf changed our policy for accepting new clients in a way, that
instead of accepting new clients only to disconnect them immediately, since
that would overcommit the limit, we temporarily disable polling for the
dedicated file descriptor, so any new connection will queue on the socket.
Commit 8b1f0469 then added the possibility to change the limits during runtime
but it didn't re-enable polling for the previously disabled file descriptor,
thus any new connection would still continue to queue on the socket. This patch
forces an update of the services each time the limits were changed in some way.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1357776

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-08-02 14:51:13 +02:00
Erik Skultety
5b9f735f16 rpc: virnetserver: Add code to CheckLimits to handle suspending of services
So far, virNetServerCheckLimits was only used to possibly re-enable accepting
new clients that might have previously been disabled due to client limits
violation (max_clients, max_anonymous_clients). This patch refactors
virNetServerAddClient, which is currently the only place where the services get
disabled, in order to use the virNetServerCheckLimits helper instead of
checking the limits by itself.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-08-02 14:51:13 +02:00
Erik Skultety
17bc333411 rpc: virnetserver: Move virNetServerCheckLimits which is static up in the file
Since virNetServerAddClient checks for the limits in order to temporarily
suspend the services, thus not accepting any more clients, there is no reason
why virNetServerCheckLimits, which is only responsible for re-enabling
previously disabled services according to the limits, could not do both. To be
able to do that however, it needs to be moved up in the file since it's static
(and because it's just a helper and there's only one caller it should remain
 static).

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-08-02 14:51:13 +02:00
Erik Skultety
2e5417bc46 rpc: virnetserver: Rename ClientSetProcessingControls to ClientSetLimits
The original naming was just a leftover that should have been fixed in commit
8b1f0469.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-08-02 14:51:13 +02:00
Cédric Bosdonnat
7d3b2eb58f libxl: add hooks support
Introduce libxl hook and use it for start, prepare, started,
stop, stopped, migrate events.
2016-08-02 14:20:31 +02:00
Cédric Bosdonnat
a9aafc0aa0 libxl: fix segfault in libxlReconnectDomain
In case of error, libxlReconnectDomain may call
virDomainObjListRemoveLocked. However it has no local reference on
the domain object, leading to segfault. Get a reference to the domain
object at the start of the function and release it at the end to avoid
problems.

This commit also factorizes code between the error and normal ends.
2016-08-02 14:20:31 +02:00
Cédric Bosdonnat
db38eb4068 libxl: add a flag to mark guests as tainted by a hook
The migrate hook will affect the migrated guest definition. Allow
these domains be marked as tainted in the libxl driver.
2016-08-02 14:20:31 +02:00
Chunyan Liu
c6f0e177a3 qemuDomainDeviceDefPostParse: add USB controller model check
To sync with virDomainControllerModelUSB, we add two models
in qemuControllerModelUSB 'qusb1' and 'qusb2', but those
models are not supported in qemu driver. So add check in
device post parse to report errors if 'qusb1' and 'qusb2'
are specified.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
2016-08-02 14:02:21 +02:00
Chunyan Liu
9a361bbba8 xenconfig: add conversion of usb controller config to and from xml
libxl configuration files conversion can now handle USB controllers.
When parting libxl config file, USB controllers with type PV are
ignored as those aren't handled.

Signed-off-by: Chunyan Liu <cyliu@suse.com>
2016-08-02 14:02:21 +02:00