https://bugzilla.redhat.com/show_bug.cgi?id=1591732
On kernels without device mapper support there won't be
/dev/mapper/control. Therefore it doesn't make much sense to
put it into devices CGroup.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Commit id fac0dacd was trying to make things more robust;
however, the ATTRIBUTE_NONNULL(1) would be for the @mon,
not the intended (2) and the @props argument as described
in the commit message.
Found by Coverity build.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Document and check that @props contains a pointer to a json object and
check that both necessary fields are present. Also mark @props as
NONNULL.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The check whether the object holding secret for decryption of the TLS
environment was wrong and would always attempt to add the object. This
lead to a crash due to recent refactors.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1598015
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
If qemu-pr-helper process died while libvirtd was not running no
event is emitted. Therefore, when reconnecting to the monitor we
must check the qemu-pr-helper process status and act accordingly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This function fetches status of all pr-managers. So far, qemu
reports only a single attribute "connected" but that fits our
needs.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This event is emitted on the monitor if one of pr-managers lost
connection to its pr-helper process. What libvirt needs to do is
restart the pr-helper process iff it corresponds to managed
pr-manager.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Rather than rejecting the user provided path and alias for the
managed PR reservation we will ignore the provided path. The
reason is that migration XML does contain path even for managed
reservations.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Users have possibility to disable qemu namespace feature (e.g.
because they are running on *BSD which lacks Linux NS support).
If that's the case we should not try to move qemu-pr-helper into
the same namespace as qemu is in.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Use the new proper location for the read/write error policy selection.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Support for specifying it with the -device frontend was added recently.
Add a capability for it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
To allow using -blockdev with RBD we need to support the recently added
RBD authentication.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It builds the string for '-device' from a virDomainDiskDef.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Aggregate the code for the two separate formats used according to the
machine type and add some supporting code so that the function is
actually readable.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
qemuBulildFloppyCommandLineOptions built its own version of the -drive
alias. Replace it by qemuAliasDiskDriveFromDisk.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Further split qemuBuildDiskCommandLine to separate formatting of the
source part.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
SD card hotplug should not be implemented until they can be used via
-blockdev.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Change the semantics to exactly opposite and rename it to
qemuDiskBusNeedsDriveArg. This will be necessary as some devices can't
be used with -blockdev.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The sectors read from the backing image need to be written to the top
level image. If a disk is marked read-only the image can't be written.
QEMU handled that by disabling copy_on_read and reporting a warning:
-drive file=/var/lib/libvirt/images/c,format=qcow2,if=none,
id=drive-scsi0-0-1,readonly=on,copy-on-read=on:
warning: disabling copy-on-read on read-only drive
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
After commit c95f50cb02 we always set a disk format in the
post parse callback so the code that mandates use of explicit format for
shareable disks no longer makes sense.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There wasn't an explicit type case to the video type enum in
qemuDomainDeviceDefValidateVideo, _TYPE_GOP was also missing from the
switch.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Since 133fb140 moved the validation of a video device into a separate
function, the code handling PCI slot assignment for video devices has
been the same for both the primary device and the secondary devices.
Let's merge these and thus handle all the devices within the existing
'for' loop.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
QEMU uses a shorthand '-sdl' which maps to '-display sdl'. However, if
there are any options to be passed to SDL, the full command version must
be used. Everything seemingly worked for us until commit 5038b30043
introduced OpenGL support for SDL and added ',gl=on/off' option which as
mentioned above could have never worked with the shorthand version of
the command. Indeed starting a domain with an SDL display and OpenGL
enabled, QEMU produces a rather cryptic error:
-sdl: Could not open 'gl=on': No such file or directory
This patch provides fixes to both the SDL cmdline generation and the
test suite.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Adding the 'default' case to our enum-typecasted switches is the current
safety trend, so add it here for mdevs too.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
It should be the command line helper who takes care of the iteration
rather than the caller.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
qemu changed the output field name for the architecture from 'arch' to
'target'. Note the change and fix the code so that the arch-specific
extraction works.
https://bugzilla.redhat.com/show_bug.cgi?id=1598829
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The wraper is quite pointless and also the 'arch' field may depend on
whether query-cpus-fast is used.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
After 6b770f9a3b both @netsource and @srcprops are leaked
because of early return introduced in the commit.
==1812== 644 bytes in 4 blocks are definitely lost in loss record 835 of 885
==1812== at 0x4C2F12F: realloc (vg_replace_malloc.c:785)
==1812== by 0x8846393: xmlSaveUriRealloc (in /usr/lib64/libxml2.so.2.9.8)
==1812== by 0x8846B1C: xmlSaveUri (in /usr/lib64/libxml2.so.2.9.8)
==1812== by 0x5DDA619: virURIFormat (viruri.c:256)
==1812== by 0x56E941B: qemuBuildNetworkDriveURI (qemu_command.c:781)
==1812== by 0x56E979A: qemuBuildNetworkDriveStr (qemu_command.c:859)
==1812== by 0x56F3A0B: qemuBuildSCSIiSCSIHostdevDrvStr (qemu_command.c:4664)
==1812== by 0x56F3D1F: qemuBuildSCSIHostdevDrvStr (qemu_command.c:4732)
==1812== by 0x56F57F7: qemuBuildHostdevCommandLine (qemu_command.c:5337)
==1812== by 0x570303A: qemuBuildCommandLine (qemu_command.c:10376)
==1812== by 0x57604EE: qemuProcessCreatePretendCmd (qemu_process.c:6649)
==1812== by 0x11352A: testCompareXMLToArgv (qemuxml2argvtest.c:566)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
When support was adding for passing a pre-opened listener socket to UNIX
chardevs, it accidentally passed the listener socket for client mode
chardevs too with predictable amounts of fail resulting. This affects
libvirt when using QEMU >= 2.12
Expand the unit test coverage to validate that we are only doing FD
passing when operating in server mode.
https://bugzilla.redhat.com/show_bug.cgi?id=1598440
Tested-by: Richard W.M. Jones <rjones@redhat.com>
Reported-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
QEMU chardevs have a bug which makes the vhostuser backend complain
about lack of support for FD passing when validating the chardev.
While this is ultimately QEMU's responsibility to fix, libvirt needs to
avoid tickling the bug.
Simply disabling chardev FD passing just for vhostuser's chardev is
the most prudent approach, avoiding need for a QEMU version number
check.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
There are two boolean parameters passed to qemuBuildChrChardevStr,
and soon there will be a third. It will be clearer to understand
from callers' POV if we use named flags instead.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The vhostuser network backend is only supported with the UNIX domain
socket chardev backend, so passing around chardevStdioLogd is not
required.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1598084
When creating a snapshot with --quiesce an async job is grabbed
and just before executing guest fs-freeze command an agent job is
grabbed. This is achieved by calling
qemuDomainObjBeginJobInternal(job = QEMU_JOB_NONE,
agentJob = QEMU_AGENT_JOB_MODIFY);
Since there already is an async job set on the domain (by the
same thread) qemuDomainNestedJobAllowed(priv, job) is consulted
if @job is allowed by job mask. But this function returns false
(meaning sync @job is not allowed) which leads to a deadlock.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
from src/qemu/qemu_domain_address.c to src/conf/domain_addr.c
and rename to virDomainCCWAddressSetCreateFromDomain
(rename to have Address in full instead of Addr to follow
the naming convention of other virDomainCCWAddress functions)
Signed-off-by: Anya Harter <aharter@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Currently we format the serial, geometry and error policy on the -drive
backend argument.
QEMU added the ability to set serial and geometry on the frontend in
the 1.2 release deprecating use of -drive, with support being deleted
from -drive in 3.0.
We keep formatting error policy on -drive for now, because we don't
ahve support for that with -device for usb-storage just yet.
Note that some disk buses (sd) still don't support -device. Although
QEMU allowed these properties to be set on -drive for if=sd, they
have been ignored so we now report an error in this case.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The private data of a virStorageSource which is backing an iSCSI hostdev
may be NULL if no authentication is present. The code handling the
hotplug would attempt to extract the authentication info stored in
'secinfo' without checking if it is allocated which resulted in a crash.
Here we opt the easy way to check if srcPriv is not NULL so that we
don't duplicate all the logic which selects whether the disk source has
a secret.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1597550
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This argument is not used anymore. The only function that is
passing non-NULL (qemuDomainSaveMemory) does not actually care
for the value (after 23087cfdb) and every other caller just
passes NULL anyway.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When using domxml-to-native, we must generate CLI args that can be used
in a standalone scenario. This means no FD passing can be used. To
achieve this we must clear the QEMU_CAPS_CHARDEV_FD_PASS capability bit.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The processing code which prepares images should be executed really only
for the images which were detected. The code actually tried to update
the last user-specified layer as well. Thankfully we don't do anything
that would be a problem at this point.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1515533
The @prefix attribute to <ip/> element for interface type user is
optional. Therefore, if left out it has value of zero in which
case we should not check whether it falls into <4, 27> range.
Otherwise we fail parsing domain XML for no good reason.
Broken by commit b62b8090b2.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Once we called qemuDomainObjEnterRemote to talk to the destination
daemon during a peer to peer migration, the vm lock is released and we
only hold an async job. If the source domain dies at this point the
monitor EOF callback is allowed to do its job and (among other things)
clear all private data irrelevant for stopped domain. Thus when we call
qemuDomainObjExitRemote, the domain may already be gone and we should
avoid touching runtime private data (such as current job info).
In other words after acquiring the lock in qemuDomainObjExitRemote, we
need to check the domain is still alive. Unless we're doing offline
migration.
https://bugzilla.redhat.com/show_bug.cgi?id=1589730
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
The variable is used to store the offline migration capability of the
destination daemon. Let's call it 'dstOffline' so that we can later use
'offline' to indicate whether we were asked to do offline migration.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1541921
In TCG mode, there are no vCPU threads and thus there's nothing
to be placed into resctrl group. Forbid such configuration.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
If we ever fail to properly set jobinfo->statsType,
qemuDomainJobInfoToParams would return -1 without setting an error.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1585108
When updating a live device users might pass different alias than
the one the device has. Currently, this is silently ignored which
goes against our behaviour for other parts of the device where we
explicitly allow only certain changes and error out loudly on
anything else.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This was lost in c57f3fd2f8. But now we are going to
need it again (except the DETACH action where checking for device
compatibility does not make much sense anyway).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
