The whole point of pstore device is that the guest writes crash
dumps into it. But the way SELinux label is set on the
corresponding file warrants RO access only. This is due to a
copy-paste from code around: kernel/initrd/DTB/SLIC - these are
RO indeed, but pstore MUST be writable too. In a sense it's
closer to NVRAM/disks - hence set imagelabel on it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
So far we are relying on QEMU or sysadmin to create the file for
pstore. This is suboptimal as in the case of the former we can
not set proper seclabels (there's nothing to set seclabels on
until QEMU is started).
Therefore, make sure the file is created before launching QEMU
and that it has the correct size.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Updated by "Update PO files to match POT (msgmerge)" hook in Weblate.
Translation: libvirt/libvirt
Translate-URL: https://translate.fedoraproject.org/projects/libvirt/libvirt/
Co-authored-by: Weblate <noreply@weblate.org>
Signed-off-by: Fedora Weblate Translation <i18n@lists.fedoraproject.org>
There are some features/improvements/bug fixes I've either
contributed or reviewed/merged. Document them for upcoming
release.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Introduced only a couple of commits ago (in
v10.5.0-84-g90e50e67c6) the pstore device acts as a nonvolatile
storage, where guest kernel can store information about crashes.
This device, however, expects a file in the host from which the
crash data is read. So far, we expected users to provide a path,
but we can autogenerate one if missing. Just put it next to
per-domain's NVRAM stores.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
As can be seen in earlier commits, there can be two OEM strings
with the same index. But since our parser
(virSysinfoParseOEMStrings()) doesn't expect that, it increments
index in each run and thus skips over these strings.
Fortunately, we have the right index at hand - we're just
skipping over it in a loop. Just reconstruct the index back
inside the loop.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
On some systems, there are two or even more 'OEM Strings'
sections in DMI table. Here's an example of dmidecode output on
such system:
# dmidecode -q -t 11
OEM Strings
String 1: Default string
OEM Strings
String 1: ThunderX2 System
String 2: cavium.com
String 3: Comanche
Now, this poses a problem, because when one tries to obtain
individual strings, they get:
# dmidecode -q --oem-string 1
Default string
ThunderX2 System
# dmidecode -q --oem-string 2
No OEM string number 2
cavium.com
NB, the "No OEM string number 2" is printed onto stderr and
everything else onto stdout. Oh, and trying to get OEM strings
from just one section doesn't fly:
# dmidecode -q -H 0x1d --oem-string 2
Options --string, --type, --handle and --dump-bin are mutually exclusive
This means two things:
1) we have no way of distinguishing OEM strings at the same index
but in different sections,
2) because of how virSysinfoDMIDecodeOEMString() is written, we
fail in querying OEM string that exists in one section but not
in the others (for instance string #2 from example above).
While there's not much we can do about 1), there is something
that can be done about 2) - refine the error condition and make
the function return an error iff there's nothing on stdout and
there's something on stderr.
Resolves: https://issues.redhat.com/browse/RHEL-45952
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Introduce a test case for sysinfotest. The data was obtained by
running dmidecode as libvirt would run it:
dmidecode -q -t 0,1,2,3,4,11,17
Now, the expected output fits almost perfectly, except for OEM
strings where the third string looks nothing like in the
dmidecode output. This is because of testDMIDecodeDryRun() which
overwrites the third OEM string (see v6.5.0-rc1~214 for more
info). But that's okay for now.
Speaking of OEM strings, it's worth noticing two 'OEM Strings'
sections in the dmidecode output. This is causing some troubles
and will be fixed in next commit.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
If dry run of a command was requested (virCommandSetDryRun())
then a specified callback is called instead of running actual
command. This is meant to be used in tests. To mimic running the
command as closely as possible the callback can also set exit
status of the command it's implementing. To save some lines
though, the exit status is initialized to 0 so that callback has
to set it only on failures. Now, 0 is not exactly portable value
- that's why stdlib.h has EXIT_SUCCESS (and EXIT_FAILURE) values.
Initialize the exit status (held in dryRunStatus) to EXIT_SUCCESS
then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
The acpi-erst backend for pstore device exposes a path in the
host accessible to the guest and as such we must set seclabels on
it to grant QEMU RW access.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
Nothing special going on here.
Resolves: https://issues.redhat.com/browse/RHEL-24746
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
The aim of pstore device is to provide a bit of NVRAM storage for
guest kernel to record oops/panic logs just before the it
crashes. Typical usage includes usage in combination with a
watchdog so that the logs can be inspected after the watchdog
rebooted the machine. While Linux kernel (and possibly Windows
too) support many backends, in QEMU there's just 'acpi-erst'
device so stick with that for now. The device must be attached to
a PCI bus and needs two additional values (well, corresponding
memory-backend-file needs them): size and path. Despite using
memory-backend-file this does NOT add any additional RAM to the
guest and thus I've decided to expose it as another device type
instead of memory model.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Kristina Hanicova <khanicov@redhat.com>
The new option style renamed one of the cache modes.
https://issues.redhat.com/browse/RHEL-50329
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In cases when a QEMU process takes longer than the time sigterm and
sigkill are issued to kill the process do not simply fail and leave the
VM in state VIR_DOMAIN_SHUTDOWN until the daemon stops. Instead set up
an fd on /proc/$pid and get notified when the QEMU process finally has
terminated to cleanup the VM state.
Resolves: https://issues.redhat.com/browse/RHEL-28819
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
If there are absent values in an already existing element
specifying rom settings, we simply use the old ones. This
behaviour is not desired, as users might think that deleting the
element from XML would delete the setting (because the hotplug
succeeds) - which does not happen. Because of that, we should not
accept an interface without elements that cannot be changed.
Therefore, we should not allow absent values for already existing
rom setting during hotplug.
Resolves: https://issues.redhat.com/browse/RHEL-7109
Signed-off-by: Kristina Hanicova <khanicov@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
New element 'openfiles' had confusing name. Since the patch with
this new element wasn't propagate yet, old name ('rlimit_nofile')
was changed.
...
<binary>
<openfiles max='122333'/>
</binary>
...
Signed-off-by: Adam Julis <ajulis@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The current "building from git" test uses "test -d .git"; however, that
doesn't work when libvirt is used as a submodule, as in that case .git
is a normal file. Use "test -e .git" instead.
Signed-off-by: John Levon <john.levon@nutanix.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
On various occasions, virt-host-validate parses /proc/cpuinfo to
learn about CPU flags (see virHostValidateGetCPUFlags()). It does
so, by reading the file line by line until the line with CPU
flags is reached. Then the line is split into individual flags
(using space as a delimiter) and the list of flags is then
iterated over.
This works, except for cases when the line with CPU flags is too
long. Problem is - the line is capped at 1024 bytes and on newer
CPUs (and newer kernels), the line can be significantly longer.
I've seen a line that's ~1200 characters long (with 164 flags
reported).
Switch to unbounded read from the file (getline()).
Resolves: https://issues.redhat.com/browse/RHEL-39969
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
User feedback has shown that the examples are not clear enough
to illustrate the cli passthrough concept in action.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Since libvirt commit 3ef9b51b10,
the pflash storage for the os loader file follows its read-only flag,
and qemu tries to open the file for writing if set so.
This patches virt-aa-helper to generate the VM's AppArmor rules
that allow this, using the same domain definition flag and default.
Signed-off-by: Miroslav Los <mirlos@cisco.com>
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
This scenario is going to be ever more popular, especially now
that virt-manager has started using UEFI by default on riscv64
(see https://github.com/virt-manager/virt-manager/pull/670/).
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It's available as part of the edk2-riscv64 Fedora package.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
By definition. Accordingly, filter them out when looking for
a read/write image.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
If the configuration explicitly requests a specific type of
firmware image, be it pflash or ROM, we should ignore all images
that are not of that type.
If no specific type has been requested, of course, any type is
considered a match and the selection will be based upon the
other attributes.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This new test case covers the scenario in which the user
specifically asked for a read/write pflash image.
From the output files, we can see that the firmware selection
algorithm has picked a ROM image, which demonstrates the
presence of another bug. We're going to fix it with an upcoming
commit.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Sync with the edk2-20240524-4.fc39 package from Fedora.
The only notable change is that the inteltdx variant now declares
support for Secure Boot and is a ROM image instead of a stateless
pflash one.
The latter causes it to be considered eligible for the
configuration described by the firmware-auto-efi-rw test cases,
which now passes instead of failing.
Of course that doesn't make any sense, because a ROM image by
definition cannot be read/write. So this indicates the presence
of a bug in our firmware selection algorithm, which we're going
to address with an upcoming commit.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add an element to configure the rlimit nofile size:
...
<binary>
<rlimit_nofile size='122333'/>
</binary>
...
Non-positive values are forbidden in 'domaincommon.rng'. Added separate
test file, created by modifying the 'vhost-user-fs-fd-memory.xml'.
Signed-off-by: Adam Julis <ajulis@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
So much can happen in the fileName field of the VMX that the easiest
thing is to silently report a serial type="null".
This effectively reverts commits de81bdb8d4cd and 62c53db0421a, but
keeps the test files to show the fix is still in place.
There is one instance where an error gets reset, but since that is a
rare case on its own and on top of that does not happen in any of our
long-running daemons with a logfile that might get monitored it should
be fine to leave it there.
Resolves: https://issues.redhat.com/browse/RHEL-32182
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is supposed to unstuck FreeBSD as it switched to
Python-3.11.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This CPU feature can be used to explicitly enable or disable
support for pointer authentication. By default, it will be
enabled if the host supports it.
https://issues.redhat.com/browse/RHEL-7044
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Recent commit v10.4.0-87-gd9935a5c4f made a reasonable change to only
reset beingDestroyed back to false when vm->def->id is reset to make
sure other code can detect a domain is (about to become) inactive. It
even added a comment saying any caller of qemuProcessBeginStopJob is
supposed to call qemuProcessStop to clear beingDestroyed. But not every
caller really does so because they first call qemuProcessBeginStopJob
and then check whether a domain is still running. If not the
qemuProcessStop call is skipped leaving beingDestroyed=true. In case of
a persistent domain this may block incoming migrations of such domain as
the migration code would think the domain died unexpectedly (even though
it's still running).
The qemuProcessBeginStopJob function is a wrapper around
virDomainObjBeginJob, but virDomainObjEndJob was used directly for
cleanup. This patch introduces a new qemuProcessEndStopJob wrapper
around virDomainObjEndJob to properly undo everything
qemuProcessBeginStopJob did.
https://issues.redhat.com/browse/RHEL-43309
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
If virt-host-validate is ran on a SEV-SNP capable machine, an
extra "PASS" is printed out. This is because
virHostValidateAMDSev() prints "PASS" and then returns 1
(indicating success) which in turn makes the caller
(virHostValidateSecureGuests()) print "PASS" again. Just drop the
extra printing in the caller and let virHostValidateAMDSev() do
all the printing.
Fixes: 1a8f646f29
Resolves: https://issues.redhat.com/browse/RHEL-46868
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allow migration if the "migrate-precopy" capability is present or
libvirt is not the one running the virtiofs daemon.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
