51535 Commits

Author SHA1 Message Date
Daniel P. Berrangé
fc3a60d9d7 util: fix off-by-1 in inhibitor constants
The inhibitor constant values were off-by-1, so when converted into
string format, we picked the wrong names

Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2025-01-07 16:16:16 +00:00
Stefan Hellermann
2ac1a0c13f meson: remove unneeded dependency on libdevmapper for storage_disk
In commit dfa0e11 the last direct usage of devmapper for storage_disk was
removed. There is one stale include remaining, which is unused even longer
since df1011ca. Remove the include and change meson.build so we can use
storage_disk without devmapper.

I'm running it right now with a stripped-down config on a small arm64
router with openwrt.

Signed-off-by: Stefan Hellermann <stefan@the2masters.de>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2025-01-07 12:33:34 +01:00
Martin Kletzander
9df14f5173 conf: Adjust hyperv tlbflush formatting
Commit 247357cc292a added support for direct and extended modes for
tlbflush, but forgot to do the formatting as well.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2025-01-07 10:55:38 +01:00
Ján Tomko
ad6b4d1fef conf: refactor hyperv features formatting
Add a nested buffer for whatever sub-elements a particular
hyperv feature might have.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2025-01-07 10:55:38 +01:00
Adam Julis
91bb41a8b7 virtiofs: Allow read only mode
Resolves: https://issues.redhat.com/browse/RHEL-72192
Signed-off-by: Adam Julis <ajulis@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2025-01-07 10:25:02 +01:00
Jim Fehlig
d2a39db35b security: apparmor: Remove hardcoded "libvirtd" profile name
The apparmor driver probe function checks for an active profile matching
the full path of the running daemon binary. If not found, it checks for
a profile named "libvirtd". This works fine when the running daemon is the
old monolithic libvirtd, but fails with modular daemons.

Remove the check for a hardcoded "libvirtd" profile and replace with the
basename of the running daemon binary.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2025-01-06 14:59:10 -07:00
Daniel P. Berrangé
6d3b877171 remote: apply translations to polkit files
The 'description' and 'message' fields in polkit policy files should be
translated into the user's chosen language. xgettext is told to search
in both and source and build dirs by meson.

Unfortunately a bug in xgettext means that when it searches for built
files in XML format, it'll trigger a warning message due to failure to
load the generated file from the source dir:

  xgettext: cannot read ..snip../libvirt/src/access/org.libvirt.api.policy: failed to load external entity "..snip../libvirt/src/access/org.libvirt.api.policy"

This is harmless since it then goes on to try the build dir and
succeeds, but will pollute the output of 'ninja libvirt-pot'

Related: https://gitlab.com/libvirt/libvirt/-/merge_requests/387
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2025-01-06 18:58:44 +00:00
Daniel P. Berrangé
c244d041d9 meson: remove duplication of polkit dirs construction
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2025-01-06 18:58:42 +00:00
Daniel P. Berrangé
b996e99c51 po: add its rules for translating polkit file strings
xgettext / msgfmt have generic support for extracting / merging strings
in XML files, however, they need to be told something about the schema
to know which fields are translatable. This is done by providing 'its'
rules. Usually the 'its' rules would be shipped in a -devel package of
the app which owns the schema definition, but polkit does not do this.
Thus libvirt (and other apps) must ship their own local 'its' rules for
polkit.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2025-01-06 18:58:31 +00:00
Marc-André Lureau
062a2c07cc qemu_tpm: do not delete parent directory for custom source
When the vTPM source path is specified, such as:
   <source type=".." path="/my/tpm"/>

Do not delete the parent directory, but only the given file/dir.

Fixes: commit f1304cc566 ("qemu_tpm: handle file/block storage source")

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Tested-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2025-01-06 15:58:42 +01:00
Marc-André Lureau
958283a21f qemu_tpm: lock the state explicitly when running swtpm
Commit bb5e26749fe5b ("qemu: explicit swtpm state locking") attempted to
lock the state, but only for swtpm-setup. The capability
"tpmstate-opt-lock" is actually only exposed by swtpm.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2025-01-06 15:58:29 +01:00
Marc-André Lureau
90014e7bc4 Revert "qemu: explicit swtpm state locking"
This reverts commit bb5e26749fe5b5856a3541be2cbe147701e6e121.

swtpm-setup doesn't have "tpmstate-lock", only swtpm.

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2025-01-06 15:58:15 +01:00
Michal Privoznik
18b8e6d3cc hyperv: Introduce and export 'facility' variable.
In its upstream commit [1] openwsman dropped 'facility' variable
which is documented as:

 * all processes that use the libu must define a "facility" variable somewhere
 * to satisfy this external linkage reference.
 *
 * Such variable will be used as the syslog(3) facility argument.

Well, prior to that commit, openwsman itself declared the
variable (and set it to LOG_DAEMON). Now it's up to us.

Yeah, the variable naming is terrible and also I we are not using
libu directly, but apparently libwsman.so requires it anyway:

  $ objdump -T /usr/lib64/libwsman.so | grep facility
  0000000000000000      D  *UND*  0000000000000000  Base        facility

1: d72c51f21b
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2025-01-06 14:21:18 +01:00
Xianglai Li
a91b22ffc6 apparmor: Allow running loongarch64 VMs
Allows to load firmware in the qemu-efi-loongarch64 directory
Allows the binary qemu-system-loongarch64 to be run

This makes it possible to run loongarch64 VMs when AppArmor
is enabled

Signed-off-by: Xianglai Li <lixianglai@loongson.cn>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2025-01-02 13:48:12 +01:00
Martin Kletzander
247357cc29 qemu: Add support for direct and extended tlbflush features
They require special handling since they are dependent on the basic
tlbflush feature itself and therefore are not handled automatically as
part of virDomainHyperv enum, just like the stimer-direct feature.

Resolves: https://issues.redhat.com/browse/RHEL-7122
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-26 10:46:59 +01:00
Martin Kletzander
ac08b362da conf, docs: Add support for direct and extended tlbflush features
Similarly to stimer-direct these are subelements of <tlbflush/> in the
domain XML.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-26 10:46:59 +01:00
Praveen K Paladugu
f7c33eeeb7 ch: Enable logging curl responses from ch
Log curl responses from cloud-hypervisor process during Boot request, using
domain's logContext.

Signed-off-by: Praveen K Paladugu <praveenkpaladugu@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-20 16:24:58 +01:00
Praveen K Paladugu
db4e837598 ch: move curl_data and curl_callback definitions
Move the definitions of curl_data and curl_callback to be used
within virCHMonitorPutNoContent.

Signed-off-by: Praveen K Paladugu <praveenkpaladugu@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-20 16:24:58 +01:00
Praveen K Paladugu
72a9a91e3b ch: Enable logging for ch domains
Use domainLogContext to enable logging for ch domain process during create
and restore steps.

Signed-off-by: Praveen K Paladugu <praveenkpaladugu@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-20 16:24:58 +01:00
Praveen K Paladugu
334d2f604c hypervisor: Move QEMU log context to hypervisor
While doing so, also drop QEMU specific arguments from
domainLogContextNew() and replace them with hypervisor agnostic
ones.

Signed-off-by: Praveen K Paladugu <praveenkpaladugu@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-20 16:24:58 +01:00
Daniel P. Berrangé
94b393dd6e util/xml: open XML files before calling libxml2
Libxml2 has awful error reporting behaviour when reading files. When
we fail to load a file from the test driver we see:

  $ virsh -c test:///wibble.xml
  I/O warning : failed to load external entity "/wibble.xml"
  error: failed to connect to the hypervisor
  error: XML error: failed to parse xml document '/wibble.xml'

where the I/O warning line is something printed by libxml2 itself,
which also lacks any useful detail.

Switching to our own file reading code we can massively improve
things:

  $ ./build/tools/virsh -c test:///wibble.xml
  error: failed to connect to the hypervisor
  error: Failed to open file '/wibble.xml': No such file or directory

Using 10 MB as an upper limit on XML file size ought to be sufficient
for any XML files libvirt is reading.

Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-20 10:00:22 +00:00
Daniel P. Berrangé
7f2fd38ee7 util/xml: don't assume libxml2 has the filename of the document
The libxml2 error handling gets the filename from a libxml2 struct, but
it is better to not assume libxml2 knows the filename being parsed, as
we might have simply provided it a pre-loaded string.

Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-20 10:00:22 +00:00
Daniel P. Berrangé
0635cd9555 util/xml: fix extraction of XML context
Currently given an input of '<dom\n' we emit an error:

  error: Failed to define domain from tests/qemuxmlconfdata/broken-xml-invalid.xml
  error: at line 2: Couldn't find end of Start Tag dom line 1
  (null)
  ^

With this fix we emit:

  error: Failed to define domain from tests/qemuxmlconfdata/broken-xml-invalid.xml
  error: at line 2: Couldn't find end of Start Tag dom line 1
  <dom
  ----^

Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-20 10:00:22 +00:00
Daniel P. Berrangé
f7cbb136c3 src: drop obsolete checks for virDomainConfigFile failure
This cannot ever return NULL

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-20 09:58:37 +00:00
Daniel P. Berrangé
8575724aef rpc: remove logind support for virNetDaemon
The virNetDaemon code now only concerns itself with preventing auto
shutdown of the local daemon. Logind is now handled by the new
virInhibitor object, for QEMU, LXC and LibXL. This fixes two notable
bugs

 * Running virtual networks would prevent system shutdown
 * Loaded ephemeral secrets would prevent system shutdown

Fixes 9e3cc0ff5e81ed2056a6a528893fd2cb5609d70b
Fixes 37800af9a400385801da6d73654249fdb51a93d8
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-19 18:03:20 +00:00
Daniel P. Berrangé
48f0b6dfa1 src: convert drivers over to new virInhibitor APIs
This initial conversion of the drivers switches them over to use
the virInhibitor APIs in local daemon only mode. Communication to
logind is still handled by the virNetDaemon class logic.

This mostly just replaces upto 3 fields in the driver state
with a single new virInhibitor object, but otherwise should not
change functionality besides replacing atomics with mutex protected
APIs.

The exception is the LXC driver which has been trying to inhibit
shutdown shutdown but silently failing to, since nothing ever
remembered to set the 'inhibitCallback' pointer in the driver
state struct.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-19 18:03:15 +00:00
Daniel P. Berrangé
d2e5aa4f4e util: introduce object for holding a system inhibitor lock
The system inhibitor locks are currently handled by code in the
virNetDaemon class. The driver code invokes a callback provided
by the daemon when it wants to start or end inhibition.

When the first inhibition is started, the daemon will call out
to logind to apply it system wide.

This has many flaws

 * A single message is registered with logind regardless of
   what driver holds the inhibition
 * An inhibition of daemon shutdown can't be acquired
   without also inhibiting system shutdown
 * Config of the inhibitions cannot be tailored by the
   driver

The new virInhibitor object addresses these:

 * The object directly manages an inhibition with logind
   privately to the driver, enabling custom messages to
   be set.
 * It is possible to acquire an inhibition locally to the
   daemon without forwarding it to logind.

Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-19 18:03:04 +00:00
Jiri Denemark
a0a8c95d07 cpu_map: Add missing CPU features
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:24:05 +01:00
Jiri Denemark
3d55a2e593 cpu_map: Add ibpb-brtype CPU feature
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:24:05 +01:00
Jiri Denemark
2284e8c29b cpu_map: Add zero-fcs-fds CPU feature
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:24:05 +01:00
Jiri Denemark
dc12ca3949 cpu_map: Add fdp-excptn-only CPU feature
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:24:05 +01:00
Jiri Denemark
212b7d8e28 cpu_map: Add sha512, sm3, and sm4 CPU features
Introduced by Clearwater Forest platform.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:24:05 +01:00
Jiri Denemark
41a6de76bc cpu_map: Add GraniteRapids-v2 CPU model
Introduced by QEMU 9.2.0

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:24:04 +01:00
Jiri Denemark
30f05acf35 cpu_map: Add avx10* CPU features
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:24:04 +01:00
Jiri Denemark
060fd63c26 qemu: Call migrate-incoming with exit-on-error=false
The exit-on-error=false argument of migrate-incoming tells the QEMU
process to keep running when incoming migration fails, which helps us in
two ways:

1. When migration enters Finish phase to cleanup the process, the domain
   might not even exist on the destination (because it has already been
   cleaned up by EOF monitor callback) and we would get rather unhelpful
   "operation failed: domain is no longer running" error message.

2. We can get the error that caused incoming migration to fail directly
   from QEMU via query-migrate QMP command.

https://issues.redhat.com/browse/RHEL-7041

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:21:21 +01:00
Jiri Denemark
090a2f27c2 qemu: Replace qemuDomainCheckMonitor with qemuMigrationJobCheckStatus
The function is only used during incoming migration in the beginning of
Finish phase to detect if QEMU already died but EOF handler haven't had
a chance to do its job yet. It calls query-status QMP command, but
ignores the result. By calling query-migrate instead we can achieve the
same functionality if QEMU is dead and even get meaningful error from
"error-desc" in case the incoming migration failed and QEMU is still
running.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:21:21 +01:00
Jiri Denemark
3100f43a1d qemu: Detect exit-on-error argument of migrate-incoming
The exit-on-error argument (added in QEMU 9.1.0) can be used to tell
QEMU not to exit when incoming migration fails so that the error can be
retrieved via QMP. This patch adds a new capability bit indicating
support for the new argument.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-12-19 15:21:21 +01:00
Michal Privoznik
9636ac40a3 qemu_capabilities: Avoid memleak in virQEMUCapsProbeFullDeprecatedProperties()
As one of its arguments, the
virQEMUCapsProbeFullDeprecatedProperties() gets a pointer to
GStrv (a string list), which it may eventually replace. It's
single caller (virQEMUCapsProbeQMPHostCPU()) passes a string list
indeed. Now, when replacing one string list with another plain
g_free() is not enough as we need to free individual strings too.

==13573== 34 bytes in 8 blocks are definitely lost in loss record 271 of 576
==13573==    at 0x4844878: malloc (vg_replace_malloc.c:446)
==13573==    by 0x51789D1: g_malloc (in /usr/lib64/libglib-2.0.so.0.7800.6)
==13573==    by 0x5193E82: g_strdup (in /usr/lib64/libglib-2.0.so.0.7800.6)
==13573==    by 0x4997F73: g_strdup_inline (gstrfuncs.h:321)
==13573==    by 0x4997F73: virJSONValueArrayToStringList (virjson.c:1296)
==13573==    by 0x5027CF7: qemuMonitorJSONParseCPUModelExpansion (qemu_monitor_json.c:5139)
==13573==    by 0x50281C9: qemuMonitorJSONGetCPUModelExpansion (qemu_monitor_json.c:5245)
==13573==    by 0x501044F: qemuMonitorGetCPUModelExpansion (qemu_monitor.c:3261)
==13573==    by 0x4F190D0: virQEMUCapsProbeQMPHostCPU (qemu_capabilities.c:3227)
==13573==    by 0x4F2145E: virQEMUCapsInitQMPMonitor (qemu_capabilities.c:5758)
==13573==    by 0x10FFF8: testQemuCaps (qemucapabilitiestest.c:111)
==13573==    by 0x110B53: virTestRun (testutils.c:143)
==13573==    by 0x11063E: doCapsTest (qemucapabilitiestest.c:200)

Fixes: 51c098347d7f2af9b4386ac0adc4431997d06f3d
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
2024-12-19 09:14:53 +01:00
Michal Privoznik
0162f2008e qemu: Enable I/O APIC even more frequently
In my previous commit v10.10.0-48-g2d222ecf6e I've made us enable
I/O APIC when there is an IOMMU with EIM. This works well. What
does not work is case when there's just an IOMMU without EIM but
with 256+ vCPUS. Problem is that post parsing happens in two
stages: general domain post parse (where
qemuDomainDefEnableDefaultFeatures() is called) and then per
device post parse (where qemuDomainIOMMUDefPostParse() is
called). Now, in aforementioned case it is the device post parse
phase where EIM is enabled but the code that would enable
VIR_DOMAIN_FEATURE_IOAPIC has already run.

To resolve this, make the domain post parse callback "foresee"
the future enabling of EIM so that it can turn on I/O APIC
beforehand.

Resolves: https://issues.redhat.com/browse/RHEL-65844
Fixes: 2d222ecf6e73614a400b830ac56e9aaa1bc55ecc
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-18 15:27:12 +01:00
Daniel P. Berrangé
ef7c0f46f9 rpm: ensure we own directories we might create
An RPM must own any directories its creates, unless it can guarantee a
dependancy has ownership. Two packages owning the same directory is fine
if permissions are consistent.

We don't require augeas as a dep in most packages, so we must own the
augeas lens directories. Likewise for systemtap tapset dirs.

Our own cpu map dir also needs ownership.

A few files are re-sorted, so that the files are listed immediately
adjacent to the %dir that contains them.

https://bugzilla.redhat.com/show_bug.cgi?id=2280979
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-17 11:20:53 +00:00
Jiri Denemark
9e227634d3 Fix a few typos in error messages
Fixes: https://gitlab.com/libvirt/libvirt/-/issues/722
Reported-by: Göran Uddeborg <goeran@uddeborg.se>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-12-17 12:16:19 +01:00
Collin Walling
62658bbf06 conf: add deprecated_features attribute
Add a new a attribute, deprecated_features='on|off' to the <cpu>
element.  This is used to toggle features flagged as deprecated on the
CPU model on or off.  When this attribute is paired with 'on',
deprecated features will not be filtered.  When paired with 'off', any
CPU features that are flagged as deprecated will be listed under the
CPU model with the 'disable' policy.

Example:

  <cpu mode='host-model' check='partial' deprecated_features='off'/>

The absence of this attribute is equivalent to the 'on' option.

The deprecated features that will populate the domain XML are the same
features that result in the virsh domcapabilities command with the
--disable-deprecated-features argument present.

It is recommended to define a domain XML with this attribute set to
'off' to ensure migration to machines that may outright drop these
features in the future.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-17 11:45:50 +01:00
Collin Walling
15d45964e4 virsh: add --disable-deprecated-features flag to domcapabilities
Add a new flag, --disable-deprecated-features, to the domcapabilities
command.  This will modify the output to show the 'host-model' CPU
with features flagged as deprecated paired with the 'disable' policy.

virsh domcapabilities --disable-deprecated-features

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-17 11:45:50 +01:00
Collin Walling
cd1e837c22 qemu_capabilities: filter deprecated features if requested
If flag VIR_CONNECT_GET_DOMAIN_CAPABILITIES_DISABLE_DEPRECATED_FEATURES
is passed to qemuConnectGetDomainCapabilities, then the domain's CPU
model features will be updated to set any deprecated features to the
'disabled' policy.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-17 11:45:50 +01:00
Collin Walling
4e2c8de204 libvirt-domain: introduce VIR_CONNECT_GET_DOMAIN_CAPABILITIES_DISABLE_DEPRECATED_FEATURES
Introduce domain flag used to filter deprecated features from the
domain's CPU model.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-17 11:45:50 +01:00
Collin Walling
51c098347d qemu_capabilities: query deprecated features for host-model
Add QEMU_CAPS_QUERY_CPU_MODEL_EXPANSION_DEPRECATED_PROPS for detecting
if query-cpu-model-expansion can report deprecated CPU model properties.
QEMU introduced this capability in 9.1 release.  Add flag and deprecated
features to the capabilities test data for QEMU 9.1 and 9.2 replies/XML
since it can now be accounted for.

When probing for the host CPU, perform a full CPU model expansion to
retrieve the list of features deprecated across the entire architecture.
The list and count are stored in the host's CPU model info within the
QEMU capabilities.  Other info resulting from this query (e.g. model
name, etc) is ignored.

The new capabilities flag is used to fence off the extra query for
architectures/QEMU binaries that do not report deprecated CPU model
features.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-17 11:45:50 +01:00
Collin Walling
45140d2930 qemu: parse deprecated-props from query-cpu-model-expansion response
query-cpu-model-expansion may report an array of deprecated properties.
This array is optional, and may not be supported for a particular
architecture or reported for a particular CPU model. If the output is
present, then capture it and store in a qemuMonitorCPUModelInfo struct
for later use.

The deprecated features will be retained in qemuCaps->kvm->hostCPU.info
and will be stored in the capabilities cache file under the <hostCPU>
element using the following format:

        <deprecatedFeatures>
                <property name='bpb'/>
                <property name='csske'/>
                <property name='cte'/>
                <property name='te'/>
        </deprecatedFeatures>

At this time the data is only queried, parsed, and cached.  The data
will be utilized in a subsequent patch.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-17 11:45:50 +01:00
Collin Walling
60e407deb5 qemuMonitorJSONGetCPUModelExpansion: refactor parsing functions
Refactor the CPU Model parsing functions within
qemuMonitorJSONGetCPUModelExpansion.  The new functions,
qemuMonitorJSONParseCPUModelExpansionData and
qemuMonitorJSONParseCPUModelExpansion invoke the functions they
replace and leave room for a subsequent patch to handle parsing the
(optional) deprecated_props field resulting from the command.

Signed-off-by: Collin Walling <walling@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-17 11:45:50 +01:00
Michal Privoznik
2d222ecf6e qemu: Enable I/O APIC if needed
This is a follow up of my previous commits. If the number of
vCPUs exceeds some arbitrary value (255) then QEMU requires IOMMU
with EIM and intremap enabled. But in turn, intremap IOMMU
requires split I/O APIC (per virDomainDefIOMMUValidate()). Since
after my previous commits (e.g. v10.10.0-rc1~183) IOMMU is added
automagically, the I/O APIC can be also enabled automagically.

Relates to: https://issues.redhat.com/browse/RHEL-65844
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-12-16 15:43:16 +01:00
Alexander Kuznetsov
99474f8e50 logging: Change return type of virLogDaemonConfigFilePat to void
This function return value is invariant since 18f3771, so change
its type and remove all dependent checks.

Found by Linux Verification Center (linuxtesting.org) with Svace.

Reported-by: Pavel Nekrasov <p.nekrasov@fobos-nt.ru>
Signed-off-by: Alexander Kuznetsov <kuznetsovam@altlinux.org>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-12-16 11:28:21 +01:00