The secret object is supported since qemu-2.6 and can't be compiled out.
Assume the presence to simplify the code.
This enables the use of the secret key for most tests not using real
caps.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It always returns true. Make the logic a bit simpler to see through.
This completely removes 'virCryptoHaveCipher' as it's pointless in the
current form.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
LUN disks are supported only by VMX and QEMU drivers and the VMX
implementation is a subset of qemu's implementation, thus we can move
the qemu-specific validator to the global validation code providing that
we allow the format to be 'none' (qemu driver always sets 'raw' if it's
not set) and allow disk type 'volume' as a source (qemu always
translates the source, and VMX doesn't implement 'volume' at all).
Moving the code to the global validation allows us to stop calling it
from the qemu specific validation and also deduplicates the checks.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When the VM is inactive the 'virStorageSource' struct doesn't have the
necessary data pointing to the actual storage. This is a problem for
inactive snapshot operations on VMs which use disk type='volume'.
Add the translation steps for reversion and deletion of snapshots.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1977155
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/202
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Directly use 'priv->allowReboot' as we now document what the behaiour is
to avoid another lookup.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Q35 machine types 2.3 and older had an integrated floppy controller.
Support for these machine types was removed by QEMU commit
commit 86165b499edf8b03bb2d0e926d116c2f12a95bfe
q35: Remove old machine versions
git describe: v2.5.0-1530-g86165b499e contains: v2.6.0-rc0~76^2~4
In libvirt, we have bumped the minimum QEMU version to 2.11:
commit b4cbdbe90bbf85eaf687f532d5a52a11e664b781
qemu: Formally deprecate support for qemu < 2.11
git describe: v7.3.0-13-gb4cbdbe90b contains: v7.4.0-rc1~300
Since this QEMU version only supports Q35 machine versions 2.4+,
remove the code dealing with older ones.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Again, we don't need full driver, just its config.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Tested-by: Ján Tomko <jtomko@redhat.com>
The function doesn't really need domain object, but domain
definition from which it takes seclabels.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Tested-by: Ján Tomko <jtomko@redhat.com>
We didn't always save status xml after generating new taint message
which resulted in it being deleted in case of a libvirtd restart.
Some taint messages were preserved thanks to saving status xml
separately at the end of the calling functions. With this, every taint
message is saved, regardless of the calling functions.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1965589
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We always process the full list so there's no value in storing the count
separately.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We always process the full list so there's no value in storing the count
separately.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Previously they were stored in two separate arrays. This way it's
obvious when referencing the same one.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use virAppendElement instead of virInsertElementsN to implement
VIR_APPEND_ELEMENT_COPY which allows us to remove error handling as the
only relevant errors were removed when switching to aborting memory
allocation functions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Starting with QEMU 6.0, this controller is enabled by default
on aarch64.
https://bugzilla.redhat.com/show_bug.cgi?id=1967187
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Additional cleanup paths add the possibility of not freeing earlier
stuff. Add an AUTOPTR handler for qemuDomainObjPrivate and use it in
qemuDomainObjPrivateAlloc
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
The freeing function will be needed to undo failures in allocation.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
If the attempt to attach a device failed, we erased the
unattached device from the namespace. This resulted in erasing an
already attached device in case of a duplicate. We need to check
for existing file in the namespace in order to determine erasing
it in case of a failure.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1780508
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When users register the threshold event for the top level image with an
explicit index (e.g. vda[3]) they are clearly expecting the index in the
event.
This flag will help avoiding emission of the second event without the
index when the client clearly requested one with the index.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Return 0 directly if the port is ovs managed. When the ovs port is set
noqueue, qos config on this port will not work.
Signed-off-by: Jinsheng Zhang <zhangjl02@inspur.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When seeing a guest with a sound device, and no audio backend, we
automatically add an audio backend XML element based on the historical
QEMU driver behaviour. Unfortunately when we live migrate back to an
old libvirt, it may not understand the audio driver type we configured.
We thus need to strip the default audio backend when migrating.
Fixes https://gitlab.com/libvirt/libvirt/-/issues/179
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The TPM 2.0 specification predates ARM virtualization, and so
implementing TPM 1.2 support on ARM was not considered a useful
endeavor.
This is technically a breaking change, but TPM support on ARM was
only introduced fairly recently (libvirt 7.1.0) and the previous
default resulted in non working TPM devices; anyone who has a
working configuration is not going to be affected.
https://bugzilla.redhat.com/show_bug.cgi?id=1970310
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Tested-by: Liu Yiding <liuyd.fnst@fujitsu.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
For validation of explicitly configured addresses we already ported the
same style of checks to qemuValidateDomainDeviceDefAddress and implicit
address assignment should do the right thing in the first place, thus
the function is redundant and can be removed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Modify the code in the last two instances in the code to behave as if
the flag is not asserted.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
qemuDomainDefAddDefaultDevices skipped adding the memballoon for the
's390-virtio' machine type, but since it was removed in qemu 2.6 we can
remove the hack now.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This function doesn't modify passed video definition. Make the
argument const.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
In preparation for hotplug of <transient> disks we'll need to track
whether the overlay file was created individually per-disk.
Add 'transientOverlayCreated' to 'struct _qemuDomainDiskPrivate' and
remove 'inhibitDiskTransientDelete' from 'qemuDomainObjPrivate' and
adjust the code for the change.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
The description of the function says that the return value is a
file descriptor on success and negative errno on failure which is
not true. If the 'if' case with check on security labels fails,
the return value is -1 not -errno. The solution is to return
'-EINVAL' instead.
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When fetching the value of a private secret, we need to use an elevated
identity otherwise the secret driver will deny access.
When using the modular daemons, the elevated identity needs to be active
before the secret driver connection is opened, and it will apply to all
APIs calls made on that conncetion.
When using the monolithic daemon, the identity at time of opening the
connection is ignored, and the elevated identity needs to be active
precisely at the time the virSecretGetValue API call is made.
After acquiring the secret value, the elevated identity should be
cleared.
This sounds complex, but is fairly straightfoward with the automatic
cleanup callbacks.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
All supported qemus have it, there isn't an elegant way to detect it and
it's unlikely to be ever removed on purpose.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@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>
Historically, we declared pointer type to our types:
typedef struct _virXXX virXXX;
typedef virXXX *virXXXPtr;
But usefulness of such declaration is questionable, at best.
Unfortunately, we can't drop every such declaration - we have to
carry some over, because they are part of public API (e.g.
virDomainPtr). But for internal types - we can do drop them and
use what every other C project uses 'virXXX *'.
This change was generated by a very ugly shell script that
generated sed script which was then called over each file in the
repository. For the shell script refer to the cover letter:
https://listman.redhat.com/archives/libvir-list/2021-March/msg00537.html
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Prevent unbounded chains by limiting the recursion depth of
virStorageSourceGetMetadataRecurse to the maximum number of image layers
we limit anyways.
This removes the last use of virStorageSourceGetUniqueIdentifier which
will allow us to delete some crusty old infrastructure which isn't
really needed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Similar to the qemu.conf knob 'deprecation_behavior' add a per-VM knob
in the QEMU namespace:
<qemu:deprecation behavior='...'/>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Just like VFIO devices, vDPA devices may need to have all guest memory
pages locked/pinned in order to operate properly. In the case of VFIO
devices (including mdev and NVME, which also use VFIO) libvirt
automatically increases the locked memory limit when one of those
devices is present. This patch modifies that code to also increase the
limit if there are any vDPA devices present.
Resolves: https://bugzilla.redhat.com/1939776
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This function is a specialized version of
qemuDomainGetMemLockLimitBytes() for PPC64. Simplifying it in the same
manner as the previous patch has the nice side effect of accounting
for the possibility of an mdev device
(I don't know if mdev devices are supported on PPC, but even if not
then a) the additional check for mdev devices gained by using
qemuDomainNeedsVFIO() in place of open coding will be an effective
NOP, and b) if mdev devices are supported on PPC64 in the future, this
function will be prepared for it).
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This function goes through a loop checking if each hostdev is a VFIO
or mdev device, and then later it calls virDomainDefHasNVMEDisk(). The
function qemuDomainNeedsVFIO() does exactly the same thing, so let's
just call that instead.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
virQEMUCapsGet checks for qemuCaps itself, no need to do it explicitly.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Attempting to set the memlock limit might fail if we're running
in a containerized environment where CAP_SYS_RESOURCE is not
available, and if the limit is already high enough there's no
point in trying to raise it anyway.
https://bugzilla.redhat.com/show_bug.cgi?id=1916346
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Store the current memory locking limit and the desired one
separately, which will help with later changes.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Now that we've implemented a fallback for the function that
obtains the information from /proc, there is no reason we would
get a failure unless there's something seriously wrong with the
environment we're running in, in which case we're better off
reporting the issue to the user rather than pretending
everything is fine.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
qemuBackupBegin can take a full backup of the disks (excluding any
operations with bitmaps) without the need to wait for the
blockdev-reopen support in qemu.
Add a check that no checkpoint creation is required and the disk backup
mode isn't VIR_DOMAIN_BACKUP_DISK_BACKUP_MODE_INCREMENTAL.
Call to virDomainBackupAlignDisks is moved earlier as it initializes the
disk backup mode if not present in user config.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In short, virXXXPtr type is going away. With big bang. And to
help us rewrite the code with a sed script, it's better if each
variable is declared on its own line.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Currently the QEMU driver secretly sets the QEMU_AUDIO_DRV env variable
- VNC - set to "none", unless passthrough of host env variable is set
- SPICE - always set to "spice"
- SDL - always passthrough host env
- No graphics - set to "none", unless passthrough of host env variable is set
The setting of the QEMU_AUDIO_DRV env variable is done in the code which
configures graphics.
If no <audio> element is present, we now auto-populate <audio> elements
to reflect this historical default config. This avoids need to set audio
env when processing graphics.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
That's more consistent with our usual naming convention.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The current code is written under the assumption that, for all
limits except the core size, asking for the limit to be set to
zero is a no-op, and so the operation is performed
unconditionally.
While this is the behavior we want for the QEMU driver, the
virCommand and virProcess facilities are generic, and should not
implement this kind of policy: asking for a limit to be set to
zero should result in that limit being set to zero every single
time.
Add some checks in the QEMU driver, effectively moving the
policy where it belongs.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
