Commit Graph

46643 Commits

Author SHA1 Message Date
Peter Krempa
42d8bb4456 remote: doRemoteOpen: Automatically clean up 'priv'
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-13 10:50:02 +02:00
Peter Krempa
18c09ec164 remoteConnectOpen: Refactor cleanup
Use automatic memory freeing for 'driver' and return error right away to
avoid the 'cleanup' label.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-13 10:50:02 +02:00
Peter Krempa
791b4f9e0c remote: remoteOpenConn: Use virConnectOpenAuth instead of virConnectOpen(ReadOnly)
virConnectOpenAuth provides an unified interface with using 'flags' to
select the proper mode.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-13 10:50:02 +02:00
Peter Krempa
b403aaf04c virConnectOpenInternal: Remove 'failed' label
Jumping to the label would just return NULL.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-13 10:50:02 +02:00
Peter Krempa
000bb404e5 virConnectOpenInternal: Switch to automatic memory cleanup
Use automatic cleanup for 'ret' and 'uristr'.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-13 10:50:02 +02:00
Peter Krempa
48e1b49353 virConnectOpenInternal: Avoid double free() when alias is an invalid URI
Configuring an URI alias such as

  uri_aliases = [
      "blah=qemu://invaliduri@@@",
  ]

Results in a double free when the alias is used:

  $ virsh -c blah
  free(): double free detected in tcache 2
  Aborted (core dumped)

This happens as the 'alias' variable is first assigned to 'uristr' which
is cleared in the 'failed' label and then is explicitly freed again.

Fix this by stealing the alias into 'uristr' and removing the
unnecessary freeing.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-13 10:50:02 +02:00
Michal Privoznik
d3397885d5 kbase: Document QEMU private mount NS limitations
There are two points I've taken for granted:

  1) the mount points are set before starting a guest,
  2) the / and its submounts are marked as shared, so that mount
     events propagate into child namespaces when assumption 1) is
     not held.

But what's obvious to me might not be obvious to our users.
Document these known limitations.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2123196
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2022-09-12 12:05:07 +02:00
Michal Privoznik
f14f8dff93 qemu_process: Don't require a hugetlbfs mount for memfd
The aim of qemuProcessNeedHugepagesPath() is to determine whether
a hugetlbfs mount point is required for given domain (as in
whether qemuBuildMemoryBackendProps() picks up
memory-backend-file pointing to a hugetlbfs mount point). Well,
when domain is configured to use memfd backend then that
condition can never be true. Therefore, skip creating domain's
private path under hugetlbfs mount points.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2022-09-12 12:04:55 +02:00
Peter Krempa
b48469fcdb Revert "build: Decrease maximum stack frame size to 2048"
The bhyve driver still has some frames larger than 2048 bytes, so we
need to keep the limit as is.

The CI failure was masked by the Freebsd-13 failing for unrelated
reasons.

This reverts commit 46302172d4

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2022-09-09 16:49:21 +02:00
Peter Krempa
46302172d4 build: Decrease maximum stack frame size to 2048
After recent cleanups we can now restrict the maximum stack frame size
to 2k.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:11:06 +02:00
Peter Krempa
2ecdf25929 remote: dispatch: Allocate 'virDomainDef' in ACL helpers dynamically
At time of this patch struct 'virDomainDef' has 1736 bytes. Allocate it
dynamically to keep the stack frame size in reasonable values.

This patch also fixes remoteRelayDomainQemuMonitorEventCheckACL, where
we didn't clear the stack'd variable prior to use. Fortunately for now
the code didn't look at anything else than what the code overwrote.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:11:06 +02:00
Peter Krempa
89c7ff156b util: netdev: Dynamically allocate 'struct nlattr' in virNetDevSwitchdevFeature
At time of writing DEVLINK_ATTR_MAX equals to 176, thus the stack'd size
of the pointer array is almost 1.4kiB. Allocate it dynamically.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:11:06 +02:00
Peter Krempa
9a3110862f lxc: process: Rework reading errors from the log file
Introduce 'virLXCProcessReportStartupLogError' which simplifies the
error handling on startup of the LXC process when reading of the error
log is needed.

This function has unusual return value semantics but it helps to make
the callers simpler.

This patch also removes 2 1k stack'd buffers from virLXCProcessStart.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:11:06 +02:00
Peter Krempa
68d5617c3c lxc: virLXCProcessReadLogOutput: Automatically close FD
Switch to 'VIR_AUTOCLOSE' to simplify cleanup.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:11:06 +02:00
Peter Krempa
b0c680853a qemu: monitor: Renumber QEMU_MONITOR_MIGRATE_RESUME
Now that all preceding flags were deleted we can fix the enum value.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Peter Krempa
bc753aa6f7 qemu: migration: Remove QEMU_MONITOR_MIGRATE_BACKGROUND
'qemuMonitorJSONMigrate' is called from:
 - qemuMonitorMigrateToHost
 - qemuMonitorMigrateToSocket
   Both of the above function are called only from
   qemuMigrationSrcStart.

 - qemuMonitorMigrateToFd
   - called from:
     - qemuMigrationSrcToFile
       Both instances here pass QEMU_MONITOR_MIGRATE_BACKGROUND
       directly.
     - qemuMigrationSrcStart

qemuMigrationSrcStart is then called from qemuMigrationSrcRun and
qemuMigrationSrcResume, both of which always add QEMU_MONITOR_MIGRATE_BACKGROUND
to the flags.

Thus any caller always passes the flag so that we can remove the flag
altogether.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Peter Krempa
d5fb23bc6e qemu: monitor: Drop support for old-style non-shared storage migration
Remove the support for enabling the 'blk' and 'inc' parameters of the
'migrate' command as there are no users any more.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Peter Krempa
62b3f97aee qemu: migration: Don't attempt to fall back to old-style storage migration
QEMU supported the NBD server required for the new-style migration for a
long time already and when coupled with -blockdev the old style
migration doesn't even work, thus remove support for it.

This patch modifies the code to check that the destination returned data
for the NBD migration and returns an error if it did not and deletes the
fallback code paths which would not work.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Peter Krempa
2980268b22 qemu: capabilities: Retire QEMU_CAPS_NBD_SERVER
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Peter Krempa
94ff4f2f91 qemu: migration: Always assume support for QEMU_CAPS_NBD_SERVER
The NBD server (detected via 'nbd-server-start' qmp command) was added
to qemu in v1.3 and can't be compiled out.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Peter Krempa
4e473b8618 NEWS: Mention that non-shared storage migration was broken in libvirt-8.7
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Peter Krempa
83ffeae75a qemu: migration: Fix setup of non-shared storage migration in qemuMigrationSrcBeginPhase
In commit 6111b23522 removing pre-blockdev code paths I've
improperly refactored the setup of non-shared storage migration.

Specifically the code checking that there are disks and setting up the
NBD data in the migration cookie was originally outside of the loop
checking the user provided list of specific disks to migrate, but became
part of the block as it was not un-indented when a higher level block
was being removed.

The above caused that if non-shared storage migration is requested, but
the user doesn't provide the list of disks to migrate (thus implying to
migrate every appropriate disk) the code doesn't actually setup the
migration and then later on falls back to the old-style migration which
no longer works with blockdev.

Move the check that there's anything to migrate out of the
'nmigrate_disks' block.

Fixes: 6111b23522
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2125111
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/373
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-09 16:10:47 +02:00
Göran Uddeborg
f3ca66acc0 Translated using Weblate (Swedish)
Currently translated at 44.5% (4654 of 10440 strings)

Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/sv/

Co-authored-by: Göran Uddeborg <goeran@uddeborg.se>
Signed-off-by: Göran Uddeborg <goeran@uddeborg.se>
2022-09-07 16:08:52 +02:00
Peter Krempa
72cf345bc2 Revert "conf: clean up memory containing secrets before freeing"
Adding supposedly secure cleanup for secrets in anything related to the
XML parser is pointless because there are multiple other un-sanitized
copies of the full XML and the XML parser state at the very least.

Similarly in case RPC was used to transport the XML the RPC buffers are
not sanitized.

Additionally this patch was incomplete as it didn't sanitize the
password in the cleanup function for virDomainGraphicsAuthDef.

This reverts commit 51f8130d78

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 15:54:09 +02:00
Kristina Hanicova
ecc742126a qemu & conf: move BeginNestedJob & BeginJobNowait into src/conf
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:15:28 +02:00
Kristina Hanicova
4435c026b7 qemu & conf: move BeginAsyncJob & EndAsyncJob into src/conf
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:15:06 +02:00
Kristina Hanicova
421f1e749f qemu & conf: move BeginAgentJob & EndAgentJob into src/conf/virdomainjob
Although these and functions in the following two patches are for
now just being used by the qemu driver, it makes sense to have all
begin job functions in the same file.

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:14:43 +02:00
Kristina Hanicova
ac57f744fc CH: use virDomainObjEndJob()
This patch removes virCHDomainObjEndJob() and replaces it with
call to the generalized virDomainObjEndJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:14:39 +02:00
Kristina Hanicova
565e3caf55 LXC: use virDomainObjEndJob()
This patch removes virLXCDomainObjEndJob() and replaces it with
call to the generalized virDomainObjEndJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:14:34 +02:00
Kristina Hanicova
a7ed601d34 libxl: use virDomainObjEndJob()
This patch removes libxlDomainObjEndJob() and replaces it with
call to the generalized virDomainObjEndJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:14:29 +02:00
Kristina Hanicova
9085ccbfb4 qemu: use virDomainObjEndJob()
This patch moves qemuDomainObjEndJob() into
src/conf/virdomainjob as universal virDomainObjEndJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:14:07 +02:00
Kristina Hanicova
67bc73f116 CH: use virDomainObjBeginJob()
This patch removes virCHDomainObjBeginJob() and replaces it with
call to the generalized virDomainObjBeginJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:14:03 +02:00
Kristina Hanicova
28ed7ceb4e LXC: use virDomainObjBeginJob()
This patch removes virLXCDomainObjBeginJob() and replaces it with
call to the generalized virDomainObjBeginJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:13:58 +02:00
Kristina Hanicova
31d9c22d8e libxl: use virDomainObjBeginJob()
This patch removes libxlDomainObjBeginJob() and replaces it with
generalized virDomainObjBeginJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:13:52 +02:00
Kristina Hanicova
0d22febfc6 qemu: use virDomainObjBeginJob()
This patch moves qemuDomainObjBeginJob() into
src/conf/virdomainjob as universal virDomainObjBeginJob().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:13:30 +02:00
Kristina Hanicova
0150f7a8c1 virdomainjob: make drivers use job object in the domain object
This patch uses the job object directly in the domain object and
removes the job object from private data of all drivers that use
it as well as other relevant code (initializing and freeing the
structure).

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:13:13 +02:00
Kristina Hanicova
84e9fd068c conf: extend xmlopt with job config & add job object into domain object
This patch adds the generalized job object into the domain object
so that it can be used by all drivers without the need to extract
it from the private data.

Because of this, the job object needs to be created and set
during the creation of the domain object. This patch also extends
xmlopt with possible job config containing virDomainJobObj
callbacks, its private data callbacks and one variable
(maxQueuedJobs).

This patch includes:
* addition of virDomainJobObj into virDomainObj (used in the
  following patches)
* extending xmlopt with job config structure
* new function for freeing the virDomainJobObj

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:06:18 +02:00
Kristina Hanicova
0c3f023045 virdomainjob: add check for callbacks
There may be a case that the callback structure will exist with
no callbacks (following patches). This patch adds check for
specific callbacks before using them.

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:06:18 +02:00
Kristina Hanicova
2378f9d86e move files: hypervisor/domain_job -> conf/virdomainjob
The following patches move job object as a member into the domain
object.  Because of this, domain_conf (where the domain object is
defined) needs to import the file with the job object.

It makes sense to move jobs to the same level as the domain_conf:
into src/conf/

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:06:17 +02:00
Kristina Hanicova
15e9c5ae2f libxl: remove usage of virDomainJobData
Struct virDomainJobData is meant for statistics for async jobs.
It was used to keep track of only two attributes, one of which is
also in the generalized virDomainJobObj ("started") and one which
is always set to the same value, if any job is active
("jobType").

This patch removes usage & allocation of virDomainJobData
structure and rewrites libxlDomainJobUpdateTime() into more
suitable libxlDomainJobGetTimeElapsed().

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:06:17 +02:00
Kristina Hanicova
3b1ad4cb17 qemu & hypervisor: move qemuDomainObjBeginJobInternal() into hypervisor
This patch moves qemuDomainObjBeginJobInternal() as
virDomainObjBeginJobInternal() into hypervisor in order to be
used by other hypervisors in the following patches.

Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2022-09-07 12:06:17 +02:00
Ján Tomko
d2e767d237 qemu: do not probe for properties of nec-usb-xhci
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
8650e7a202 qemu: remove qemuValidateDomainVirtioOptions
Now that we assume all the virtio capabilities, this function does not
check anything.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
6600c0ff18 qemu: retire QEMU_CAPS_VIRTIO_PACKED_QUEUES
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
b710fcaff7 qemu: assume QEMU_CAPS_VIRTIO_PACKED_QUEUES
Added by QEMU commit:

commit 74b3e46630446568aecb0be1c77c4875d7a52f6d
Author:     Jason Wang <jasowang@redhat.com>
CommitDate: 2019-10-25 07:46:22 -0400

    virtio: add property to enable packed virtqueue

    Signed-off-by: Jason Wang <jasowang@redhat.com>
    Signed-off-by: Eugenio Pérez <eperezma@redhat.com>
    Reviewed-by: Jens Freimann <jfreimann@redhat.com>
    Message-Id: <20191025083527.30803-9-eperezma@redhat.com>
    Reviewed-by: Michael S. Tsirkin <mst@redhat.com>
    Signed-off-by: Michael S. Tsirkin <mst@redhat.com>

git describe: v4.1.0-1780-g74b3e46630 contains: v4.2.0-rc0~32^2~17

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
3ae85b6a69 qemu: retire QEMU_CAPS_VIRTIO_SCSI_IOTHREAD
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
efb3ca87d5 qemu: assume QEMU_CAPS_VIRTIO_SCSI_IOTHREAD
All the supported QEMU versions should have iothread support
on the virtio-scsi controllers if they are compiled in.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
d8e274253a qemu: retire QEMU_CAPS_NEC_USB_XHCI_PORTS
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
04bf98a418 qemu: assume QEMU_CAPS_NEC_USB_XHCI_PORTS
Introduced by QEMU commit 0846e6359c407e372f446723b8b7b09ac20d0f03
released in QEMU 1.3.0

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00
Ján Tomko
935865e057 qemu: retire QEMU_CAPS_CHARDEV_LOGFILE
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2022-09-07 12:05:40 +02:00