libssh2 has ECDSA and ED25519 support beginning with v1.9.0. libvirt cannot
make use of those because it will handle them as unknown key types.
Add support for those host key types.
Signed-off-by: Bastian Germann <bastiangermann@fishpost.de>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Calling VIR_FREE on a virDomainDef* does not free its various contained
pointers.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Preparatory step to remove virDomainChrSourceDefParseMode.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is the bug I'm facing. I deliberately configured a container
so that the source of a <filesystem/> to passthrough doesn't
exist. The start fails with:
lxcContainerPivotRoot:669 : Failed to create /non-existent/path/.oldroot: Permission denied
which is expected. But what is NOT expected is that CGroup
hierarchy is left behind. This is because the controller sets up
the CGroup hierarchy, user namespace, moves interfaces, etc. and
finally checks whether container setup (done in a separate
process) succeeded. Only after all this the error is propagated
to the LXC driver. The driver aborts the startup and tries to
perform the cleanup, but this is missing CGroups because those
weren't detected yet.
Ideally, whenever a function fails, it tries to unroll back so
that is has no artifacts left behind (look at all those frees/FD
closes/etc. at end of functions). But with CGroups it is
different - the controller process can't clean up after itself,
because it is still running inside that CGroup.
Therefore, what we have to do is to let the driver detect CGroups
as soon as they are created, and proceed with controller
execution only after that.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Currently, there is only a single pipe passed to lxc_controller
and it is used by lxc_controller to signal to the LXC driver that
the container is set up and ready to run. However, in the next
commit we will need to signal that the LXC driver has done its
part of startup process and thus the controller can proceed.
Unfortunately, virCommand handshake can't be used for this,
because it's already used to read controller's PID.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Future commits will want to reuse the handshakeFd and thus it
mustn't be closed in virLXCControllerDaemonHandshake(). Do the
closing explicitly afterwards.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The lxc_controller has a structure that's keeping its internal
state, including so called handshakeFd which is the write end of
a pipe that's used to signal to the LXC driver that the container
is set up and ready to run. However, the struct member is not
initialized to -1, so if anything fails before it is set then the
virLXCControllerFree() function tries to close FD 0 (stdin).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Convenience function to return the value of an unsigned long long XML
attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
With the last usage of `aes` and `dea` as int gone, these two can
become virTristateSwitch.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This adds a new XML element
<filesystem>
<binary>
<sandbox mode='chroot|namespace'/>
</binary>
</filesystem>
This will be used by qemu virtiofs
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The code in storage_backend_fs is used for storage_dir and storage_fs
drivers so some parts need to be guarded by checking for
WITH_STORAGE_FS.
Fixes: 16c69e7aae
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Copy the socket path in qemuExtDevicesStart, because
for libvirt-managed virtiofsd daemons the path is filled there
in qemuVirtioFSStart.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Allow passing a socket of an externally launched virtiofsd
to the vhost-user-fs device.
<filesystem type='mount'>
<driver type='virtiofs' queue='1024'/>
<source socket='/tmp/sock/'/>
</filesystem>
https://bugzilla.redhat.com/show_bug.cgi?id=1855789
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
So far VIR_DOMAIN_FS_ACCESSMODE_PASSTHROUGH is always set
in virDomainFSDefPostParse, but future commits aim to change
that.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Move the default setting of accessmode to the post-parse phase.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This strictens the parser to disallow negative values (interpreted as
`UINT_MAX + value + 1`) for attribute `speed`, which does not make sense for
a value measured in Mbits per second.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
In certain rare occasions qemu can transition a block job which was
already 'ready' into 'standby' and then back. If this happens in the
following order libvirt will get confused about the actual job state:
1) the block copy job is 'ready' (job->state == QEMU_BLOCKJOB_STATE_READY)
2) user calls qemuDomainBlockJobAbort with VIR_DOMAIN_BLOCK_JOB_ABORT_PIVOT
flag but without VIR_DOMAIN_BLOCK_JOB_ABORT_ASYNC
3) the block job is switched to synchronous event handling
4) the block job blips to 'standby' and back to 'ready', the event is
not processed since the blockjob is in sync mode for now
5) qemuDomainBlockJobPivot is called:
5.1) 'job-complete' QMP command is issued
5.2) job->state is set to QEMU_BLOCKJOB_STATE_PIVOTING
6) code for synchronous-wait for the job completion in qemuDomainBlockJobAbort
is invoked
7) the waiting loop calls qemuBlockJobUpdate:
7.1) job->newstate is QEMU_BLOCKJOB_STATE_READY due to 4)
7.2) qemuBlockJobEventProcess is called
7.3) the handler for QEMU_BLOCKJOB_STATE_READY overwrites
job->state from QEMU_BLOCKJOB_STATE_PIVOTING to QEMU_BLOCKJOB_STATE_READY
8) qemuDomainBlockJobAbort is looking for a finished job, so waits again
9) qemu finishes the blockjob and transitions it into 'concluded' state
10) qemuBlockJobUpdate is triggered again, this time finalizing the job.
10.1) job->newstate is = QEMU_BLOCKJOB_STATE_CONCLUDED
job->state is = QEMU_BLOCKJOB_STATE_READY
10.2) qemuBlockJobEventProcessConcluded is called, the function
checks whether there was an error with the blockjob. Since
there was no error job->newstate becomes
QEMU_BLOCKJOB_STATE_COMPLETED.
10.3) qemuBlockJobEventProcessConcludedTransition selects the action
for the appropriate block job type where we have:
case QEMU_BLOCKJOB_TYPE_COPY:
if (job->state == QEMU_BLOCKJOB_STATE_PIVOTING && success)
qemuBlockJobProcessEventConcludedCopyPivot(driver, vm, job, asyncJob);
else
qemuBlockJobProcessEventConcludedCopyAbort(driver, vm, job, asyncJob);
break;
Since job->state is QEMU_BLOCKJOB_STATE_READY,
qemuBlockJobProcessEventConcludedCopyAbort is called.
This patch forbids transitions to QEMU_BLOCKJOB_STATE_READY if the
previous job state isn't QEMU_BLOCKJOB_STATE_RUNNING or
QEMU_BLOCKJOB_STATE_NEW.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1951507
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Future patch will remove MKFS define as we will no longer check it
during compilation.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The function in question uses "tc" binary so virnetdevbandwidth feels
like better place for it.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This will allow us to run tests using firewall on hosts where the mocked
binaries are not available/installed instead of skipping these tests.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Following patches will make this change necessary as we will stop
detecting the full path during compile time.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We always pass DNSMASQ so there is no need for the argument at all.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We always pass DNSMASQ so there is no need for the argument at all.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Instead of removing binaryPath let's drop the function completely as
it is not used anywhere.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Instead of removing binaryPath let's drop the function completely as
it is not used anywhere.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We will never call dnsmasqCapsRefresh() so reflect what actually
happens.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The new enum helpers use a set of flags to modify their behaviour, but
the declared set of flags is semantically confusing:
typedef enum {
VIR_XML_PROP_OPTIONAL = 0, /* Attribute may be absent */
VIR_XML_PROP_REQUIRED = 1 << 0, /* Attribute may not be absent */
Since VIR_XML_PROP_OPTIONAL is declared as 0 any other flag shadows it
and makes it impossible to detect. The functions are not able to detect
a semantic nonsense of VIR_XML_PROP_OPTIONAL | VIR_XML_PROP_REQUIRED and
it's a perfectly valid statement for the compilers.
In general having two flags to do the same boolean don't make sense and
the implementation doesn't fix any shortcomings either.
To prevent mistakes, rename VIR_XML_PROP_OPTIONAL to VIR_XML_PROP_NONE,
so that there's always an enum value used with the calls but it doesn't
imply that the flag makes the property optional when the actual value is
0.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
As I've pointed out in my review, the negative number wrapping for
unsigned variables is an anti-feature which should not be promoted in
any way.
Remove VIR_XML_PROP_WRAPNEGATIVE which would make it more accessible.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
xmlDocSetRootElement removes the node from its previous document tree,
effectively removing the "<cpu>" node from "<domain>" in virCPUDefParseXML.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The g_path_is_absolute() considers more situations
than just a simply "path[0] == '/'".
Related issue: https://gitlab.com/libvirt/libvirt/-/issues/12
Signed-off-by: Luke Yue <lukedyue@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
These per-command generator functions were only exposed in the header to
allow the commandline generation to be tested. Now that we have a
generic mdevctl command generator, we can get rid of the per-command
wrappers and reduce the noise in the header.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Currently there are dedicated wrappers to construct mdevctl command.
These are mostly fine except for the one that translates both "start"
and "define" commands, only because mdevctl takes the same set of
arguments. Instead, keep the wrappers, but let them call a single
global translator that handles all the mdevctl command differences and
commonalities.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
This is not a 1:1 mapping to mdevctl commands because mdevctl doesn't
support a separate 'create' command. mdevctl uses 'start' for both
starting a pre-defined device as well as for creating and starting a new
transient device. The libvirt code will be more readable if we treat
these as separate commands. When we need to actually execute mdevctl,
the 'create' command will be translated into the appropriate 'mdevctl
start' command.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
rather than using short opentions (e.g. "-p 0000:00:02.0"), use long
options everywhere (e.g. "--parent=0000:00:02.0")
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
"start" in libvirt means - "take this object and create an
instance out of it"
"create" in libvirt most of the time means - "take and XML description,
make an object out of it and use it to create an instance"
This gets confusing with mdevctl which uses "start" for both. So, this
patch proposes to use virMdevctlStart in cases where from libvirt's POV
we're starting a defined device (unlike mdevctl). Similarly, use
virMdevctlCreate in scenarios where XML description is passed to
libvirt and a transient device is supposed to be created.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
These errors are demoted to debug statements[1] since they're only
intended to be used as return values for public APIs. This makes it
difficult to debug the problem when something goes wrong since no error
message is logged. Switch instead to VIR_ERR_INTERNAL_ERROR so that the
error is logged as expected.
[1] See the implementation of daemonErrorLogFilter() for details:
e2f82a3704/src/remote/remote_daemon.c (L89)
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
The calling function will log the error. Just return NULL if a device
cannot be found.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Use the new virXMLProp helpers and XPath queries to get rid of the old
style of iteration through element children.
Note that in case of def->blockio.logical_block_size,
def->blockio.physical_block_size and def->rotation_rate the wraparound
behaviour of 'virStrToLong_ui' was _not_ forward ported to the new code
as it makes no sense with the attributes.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Changes to other places using switch statements were required.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Changes to other places using switch statements were required.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Unfortunately virDomainSnapshotLocation is declared in snapshot_conf.h
which includes domain_conf.h. To avoid a circular dependency use
'unsigned int' for now.
Use XML parser can use virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Move the rest of the validations to the vaidation code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Move the setting of read-only state, the default disk bus and setting of
'snapshot' state for read-only disks to the post parse callback to clean
up the disk parser.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Mark it explicitly as read only in accordance with the comment outlining
configuration.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add a disk bus value represending no selected bus. This will help split
up the XML parser.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Modifications of the data such as this one don't belong into the parser.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The moved code contains only checks and does not modify the parsed
document so it doesn't belong into the PostParse code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Unify the two distinct disk definition validators.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Consolidate the checks for '<reservations/>' and viritio queues under
already existing blocks which have the same condition.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
There's no code which would assert it at this point. Remove the flag.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Extract all code related to parsing data which ends up in the 'src'
member of a virDomainDiskDef.
This allows to use the new function directly in
virDomainDiskDefParseSource and removes the use of the
VIR_DOMAIN_DEF_PARSE_DISK_SOURCE parser flag.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Separate the validation of the source so that it can be reused once we
split up the XML parser too.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The <disk> XML element parser is going to be modified so that the
virStorageSource bits are pre-parsed. Add virDomainDiskDefNewSource,
which uses an existing 'src' pointer.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
qemuDomainBlockCopy needs just the source portion of the disk but uses
the disk parser for it. Since we have a specific function now, refactor
the code to avoid having to deal with the unused virDomainDiskDef.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add a helper function which will parse the source portion of a <disk>.
The idea is to replace *virDomainDiskDefParse with
VIR_DOMAIN_DEF_PARSE_DISK_SOURCE with the new helper in the future.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Use the new macro instead of virXMLParseStringCtxt in places where the
root node is being validated.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Some callers want to validate the root XML node name. Add the capability
to the parser helper to prevent open-coding.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This allows users to restrict memory nodes without setting any specific
memory policy, then 'restrictive' mode is useful.
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The command line argument is called --hanshakefd (check out
lxc_controller.c:main()). But the command line builder puts only
--handshake. This works, because there is no other argument
sharing the prefix.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
I've encountered the following bug, but only on Gentoo with
systemd and CGroupsV2. I've started an LXC container successfully
but destroying it reported the following error:
error: Failed to destroy domain 'amd64'
error: internal error: failed to get cgroup backend for 'pathOfController'
Debugging showed, that CGroup hierarchy is full of surprises:
/sys/fs/cgroup/machine.slice/machine-lxc\x2d861\x2damd64.scope/
└── libvirt
├── dev-hugepages.mount
├── dev-mqueue.mount
├── init.scope
├── sys-fs-fuse-connections.mount
├── sys-kernel-config.mount
├── sys-kernel-debug.mount
├── sys-kernel-tracing.mount
├── system.slice
│ ├── console-getty.service
│ ├── dbus.service
│ ├── system-getty.slice
│ ├── system-modprobe.slice
│ ├── systemd-journald.service
│ ├── systemd-logind.service
│ └── tmp.mount
└── user.slice
For comparison, here's the same container on recent Rawhide:
/sys/fs/cgroup/machine.slice/machine-lxc\x2d13550\x2damd64.scope/
└── libvirt
Anyway, those nested directories should not be a problem, because
virCgroupKillRecursiveInternal() removes them recursively, right?
Sort of. The function really does remove nested directories, but
it assumes that every directory has the same controller as the
rest. Just take a look at virCgroupV2KillRecursive() - it gets
'Any' controller (the first one it found in ".scope") and then
passes it to virCgroupKillRecursiveInternal().
This assumption is not true though. The controllers found in
".scope" are the following:
cpuset cpu io memory pids
while "libvirt" has fewer:
cpuset cpu io memory
Up until now it's not problem, because of how we order
controllers internally - "cpu" is the first and thus picking
"Any" controller returns just that. But the rest of directories
has no controllers, their "cgroup.controllers" is just empty.
What fixes the bug is dropping @controller argument from
virCgroupKillRecursiveInternal() and letting each iteration work
pick its own controller.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The VIR_CGROUP_BACKEND_CALL() macro gets a backend for controller
and calls corresponding callback in it. If either is NULL then an
error message is printed out. However, the error message contains
only the intended callback func and not controller or backend
found.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Currently, only a subset of virCgroupKillRecursiveInternal()
arguments is printed into debug logs. Print all of them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Use the appropriate type for the variable and refactor the XML parser to
parse it correctly using virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Convenience function to return the value of an enum XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of an unsigned integer XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of an integer XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of an on / off XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Convenience function to return the value of a yes / no XML attribute.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Switch @xml and @pctxt to g_autofree and get rid of the "error" and
"cleanup" labels.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Move the reporting of parsing error on the error path of the parser as
other code paths report their own errors already.
Additionally prefer printing the 'url' as document name if provided
instead of "[inline data]" as that usually gives a better hint at least
which kind of XML is being parsed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Remove the "block" formatting of function declarations and use uniform
spacing.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
Note that the comment for virStoragePoolSourceDevice::part_separator was wrong.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Note that the comment for virStorageAdapterFCHost::managed was wrong.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Note that the wrong "VIR_TRISTATE_*_ABSENT" was used in qemuDomainChangeNet.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Coverity reported that this function can return NULL, so it should be
handled properly.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Currently virMediatedDeviceGetIOMMUGroupDev() looks up the iommu group
number and uses that to construct a path to the iommu group device.
virMediatedDeviceGetIOMMUGroupNum() then uses that device path and takes
the basename to get the group number. That's unnecessary extra string
manipulation for *GroupNum(). Reverse the implementations and make
*GroupDev() call *GroupNum().
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
virMediatedDeviceGetSysfsPath() (via g_strdup_printf()) is guaranteed to
return a non-NULL value, so remove the unnecessary checks for NULL.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Fixes: 8fe30b2167
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Over several years of debugging reports related to VM shutdown, destruction,
and cleanup, I've found that logging of all events received from libxl and
logging the entry of libxlDomainCleanup has proven useful. Add the these
debug messages upstream to aid in future debugging.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When querying guest info via virDomainGetGuestInfo() the
'guest-get-disks' agent command is called. It may report disk
serial number which we parse, but never report nor use for
anything else.
As it turns out, it may help management application find matching
disk in their internals.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-By: Tomáš Golembiovský <tgolembi@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
When running on systemd host the cgroup itself is removed by machined
so when we reach this code the directory no longer exist. If libvirtd
was running the whole time between starting and destroying VM the
detection is skipped because we still have both FD in memory. But if
libvirtd was restarted and no operation requiring cgroup devices
executed the FDs would be 0 and libvirt would try to detect them using
the cgroup directory. This results in reporting following errors:
libvirtd[955]: unable to open '/sys/fs/cgroup/machine.slice/machine-qemu\x2d1\x2dguest.scope/': No such file or directory
libvirtd[955]: Failed to remove cgroup for guest
When running on non-systemd host where we handle cgroups manually this
would not happen.
When destroying VM it is not necessary to detect the BPF prog and map
because the following code only closes the FDs without doing anything
else. We could run code that would try to detach the BPF prog from the
cgroup but that is not necessary as well. If the cgroup is removed and
there is no other FD open to the prog kernel will cleanup the prog and
map eventually.
Reported-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Tested-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When nested cgroup was introduced it did not properly free file
descriptors for BPF prog and map. With nested cgroups we create the BPF
bits in the nested cgroup instead of the VM root cgroup.
This would leak the FDs which would be the last reference to the prog
and map so kernel would not remove the resources as well. It would only
happen once libvirtd process exits.
Fixes: 184245f53b
Reported-by: Eric Farman <farman@linux.ibm.com>
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Tested-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Eric Farman <farman@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
After all devices were enumerated, the enumeration thread call
nodeDeviceUpdateMediatedDevices() to refresh the state of
mediated devices. This means that 'mdevctl' will be executed. But
it may be missing on some systems (e.g. mine) in which case we
should just skip the update of mdevs instead of failing whole
device enumeration.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
To speed up nodedev driver initialization, the device enumeration
is done in a separate thread. Once finished, the thread sets a
boolean variable that allows public APIs to be called (instead of
waiting for the thread to finish).
However, if there's an error in the device enumeration thread
then the control jumps over at the 'error' label and the boolean
is never set. This means, that any virNodeDev*() API is stuck
forever. Mark the initialization as complete (the thread is
quitting anyway) and let the APIs proceed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
