Peter Krempa [Wed, 4 Aug 2021 15:37:44 +0000 (17:37 +0200)]
virPCIGetVirtualFunctions: Fetch also network interface name if needed
'virNetDevGetVirtualFunctions' calls 'virPCIGetVirtualFunctions' and
then re-iterates the returned list to fetch the interface names for the
returned virtual functions.
If we move the fetching of the interface name into
virPCIGetVirtualFunctions we can simplify the code and remove a bunch of
impossible error states.
To accomplish this the function is renamed to
'virPCIGetVirtualFunctionsFull' while keeping a wrapper with original
name and if the physical port ID is passed the interface name is fetched
too without the need to re-convert the address into a sysfs link.
For now 'virNetDevGetVirtualFunctions' still converts the returned data
into two lists.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 3 Aug 2021 14:45:36 +0000 (16:45 +0200)]
virPCIGetVirtualFunctions: Simplify cleanup of returned data
Introduce a struct for holding the list of VFs returned by
virPCIGetVirtualFunctions so that we can employ automatic memory
clearing and also allow querying more information at once.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since UUID is not guaranteed to be unique by mdevctl, we may have more
than one nodedev with the same UUID. Therefore, we need to disambiguate
when looking up mdevs by specifying the UUID and parent address, which
mdevctl guarantees to be a unique combination.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Unfortunately, mdevctl supports defining more than one mdev with the
same UUID as long as they have different parent devices. (Only one of
these devices can be active at any given time).
This means that we can't use the UUID alone as a way to uniquely
identify mdev node devices. Append the parent address to ensure
uniqueness. For example:
nodedev: add PostParse callback for nodedev parsing
This can be used similarly to other postparse callbacks in libvirt --
filling in additional information that can be determined by using the
information provided in the XML. In this case, we determine the address
of the parent device and cache it in the mdev caps so that we can use it
for generating a unique name and interacting with mdevctl.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
At the moment, this is only for mediated devices. When a new mediated
device is created or defined, the xml is expected specify the nodedev
name of an existing device as its parent. We were not previously
validating this and were simply accepting any string here.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
mdevctl can report multiple defined devices with the same UUID
but different parents, including parents that don't actually exist on
the host machine. Libvirt sets the parent to the 'computer' device for
all of the mdevs that have nonexistent parents. Because of this, it's
possible that there are multiple devices with the same UUID and the same
'computer' device as their parent, so the combination of uuid and parent
nodedev name is not guaranteed to be a unique name.
We need to ensure that each nodedev has a unique name. If we can't use
the UUID as a unique nodedev name, and we can't use the combination of
UUID and nodedev parent name, we need to find another solution. By
caching and using the parent name reported by mdevctl in combination
with the UUID, we can achieve a unique name. mdevctl guarantees that its
uuid/parent combination is unique.
This value will be used to set the mdev nodedev name in a following commit.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
nodedev: fix xml output for mdev parents in test suite
Commit 51fbbfdce8 attempted to get the proper nodedev name for the
parent of an defined mdev by traversing the filesystem and looking for a
device that had the appropriate sysfs path. This works, but it would be
cleaner to to avoid mucking around in the filesystem and instead just
just examine the list of devices we have in memory.
We already had a function nodeDeviceFindAddressByName() which constructs
an address for parent device in a format that can be used with mdevctl.
So if we refactor this function into a a function that simply formats an
address for an arbitrary virNodeDeviceObj*, then we can use this
function as a predicate for our new virNodeDeviceObjListFind() function
from the previous commit. This will search our list of devices for one
whose address matches the address we get from mdevctl.
One nice benefit of this approach is that our test cases will now
display xml output with the proper parent name for mdevs (assuming that
we've added the appropriate mock parent devices to the test driver).
Previously they just displayed 'computer' for the parent because the
alternative would have required specially constructing a mock filesystem
environment with a sysfs that mapped to the appropriate parent.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We currently query the host MSRs to determine if TSC scaling is
supported. This works OK when running privileged and can open
the /dev/cpu/0/msr. When unprivileged we fallback to querying
MSRs from /dev/kvm. This is incorrect because /dev/kvm only
reports accurate info for MSRs that are valid to use from inside
a guest. The TSC scaling support MSR is not, thus we always end
up reporting lack of TSC scaling when unprivileged.
The solution to this is easy, because KVM can directly report
whether TSC scaling is available, which matches what QEMU will
do at startup.
Closes: https://gitlab.com/libvirt/libvirt/-/issues/188 Reported-by: Roman Mohr <rmohr@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
It is true that the remote driver client now contains logic for probing
the driver to connect to when using modular daemons. This logic, however,
only runs when the remote driver is NOT running inside a daemon since we
don't want it activated inside libvirtd. Since the same remote driver
build is used in all daemons, we can't rely on it in virtproxyd either.
Thus we need to keep the virtproxyd probing logic
Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Peter Krempa [Wed, 4 Aug 2021 09:36:31 +0000 (11:36 +0200)]
virNetServerGetClients: Remove pointless cleanup
'list' will always be NULL when reaching 'virObjectListFreeCount' thus
we can remove the call as well as the 'ret' variable which was only ever
equal to 'nclients' at the point when we returned the value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Wed, 4 Aug 2021 09:33:35 +0000 (11:33 +0200)]
qemuProcessSetupHotpluggableVcpus: Use automatic memory freeing
'bootHotplug' can be auto-freed when terminating the function and moving
the declaration of 'vcpuprops' to the loop which uses it along with
automatic freeing allows us to simplify cleanup in certain cases.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Wed, 4 Aug 2021 09:28:35 +0000 (11:28 +0200)]
virNWFilterIncludeDefToRuleInst: Refactor cleanup
Use automatic memory freeing for 'tmpvars' and move the allocation of
tmpvars earlier so that we are guaranteed that 'obj' will always be
appended to 'inst->filters' and thus don't need cleanup for it.
By moving the reset of 'inst' to the block when virNWFilterDefToInst
fails we can get rid of the rest of the cleanup section and remove the
'ret' variable.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Wed, 4 Aug 2021 09:21:18 +0000 (11:21 +0200)]
virNWFilterRuleDefToRuleInst: Restructure code to avoid cleanup
Construct the 'ruleinst->vars' hash table separately in a temporary
variable so that 'ruleinst' can be allocated on success. This allows us
to get rid of the cleanup section.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Wed, 4 Aug 2021 09:08:49 +0000 (11:08 +0200)]
qemuDomainUSBAddressAddHubs: Refactor cleanup
'hub' doesn't need to be freed any more because it's always consumed and
NULLed-out by VIR_APPEND element. This also makes the 'ret' variable
obsolete.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
'video' will only ever be NULL after the 'cleanup' label thus there's no
need to use 'virDomainVideoDefFree'. In fact we can fully remove the
cleanup section and 'ret' variable by returning directly from failure
points.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 3 Aug 2021 12:14:20 +0000 (14:14 +0200)]
util: alloc: Reimplement VIR_APPEND_ELEMENT using virAppendElement
Use virAppendElement instead of virInsertElementsN to implement
VIR_APPEND_ELEMENT 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>
Peter Krempa [Wed, 4 Aug 2021 07:25:23 +0000 (09:25 +0200)]
util: alloc: Reimplement VIR_APPEND_ELEMENT_QUIET using virAppendElement
For now it was an alias to VIR_APPEND_ELEMENT. Use virAppendElement
directly until VIR_APPEND_ELEMENT is refactored too and we'll be able to
get rid of VIR_APPEND_ELEMENT_QUIET completely.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 3 Aug 2021 12:14:20 +0000 (14:14 +0200)]
util: alloc: Reimplement VIR_APPEND_ELEMENT_COPY using virAppendElement
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>
Peter Krempa [Tue, 3 Aug 2021 12:14:20 +0000 (14:14 +0200)]
util: alloc: Reimplement VIR_APPEND_ELEMENT_(COPY_)INPLACE using virAppendElement
VIR_APPEND_ELEMENT_INPLACE and VIR_APPEND_ELEMENT_COPY_INPLACE already
ignore the return value from 'virInsertElementsN' which allows a trivial
conversion to virAppendElement without the need for 'ignore_value'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 3 Aug 2021 12:11:23 +0000 (14:11 +0200)]
util: alloc: Introduce virAppendElement helper
The new wrapper calls virInsertElementInternal with the appropriate
arguments without any checks which are unnecessary for appension. This
allows to have no return value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 3 Aug 2021 11:36:56 +0000 (13:36 +0200)]
virInsertElementsN: Split out actual insertion code
Split out the code doing the movement of the elements and insertion from
the range checks. This will help in adding an error-free version for
appension.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Tue, 3 Aug 2021 11:28:17 +0000 (13:28 +0200)]
virInsertElementsN: Rename 'add' argument
The idea of @add was that the insersion/appension macros would allow
adding more than one element but this feature was never implemented.
'add' is nowadays used as a dummy variable consuming the result of the
VIR_TYPEMATCH compile time check.
Make it obvious that we don't use 'add' by renaming it to
'typematchDummy', marking it as unused and replacing all occurences
where the value was used by literal '1'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Fri, 30 Jul 2021 08:34:50 +0000 (10:34 +0200)]
tests: Don't leak cpu defs
There are cpu definitions that are allocated in
qemuTestDriverInit() but are missing corresponding
virCPUDefFree() call in qemuTestDriverFree(). It's safe to call
the free function because the definitions contain a refcounter
and thus even if they were still in use the refcounter would be
just decreased.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
rpm: macroize logic for enabling/disabling daemons post/postun-install
The patterns for enabling/disabling daemons post/postun-install has a
bit of duplication across the different part of the spec, due to the
number of socket units involved. This is going to get much worse with
the need to enable/disalbe modular daemons, so benefits from macroization.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
rpm: restart virtnwfilter/virnetworkd if configs change
Currently we restart libvirtd if the nwfilter/network configs have
changed. We need to take account of possibility that the modular
daemons are in use instead though.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
rpm: macroize logic for restarting daemons post-transaction
The patterns for restarting daemons post-transaction has a bit of
duplication across the different part of the spec. This is going to
get much worse with the need to restart modular daemons, so benefits
from macroization.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Andrea Bolognani [Thu, 22 Jul 2021 13:58:28 +0000 (15:58 +0200)]
ci: Adapt to lcitool command line changes
lcitool now uses the term "target" instead of "host" to refer to
the various operating systems it supports, and we need to adapt
our helper script so that it works with the new command line
interface.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Erik Skultety <eskultet@redhat.com>
qemu_migration: check for interface type 'hostdev'
When we try to migrate vm, we check if it contains only devices
that are able to migrate. If a hostdev device is not able to
migrate we raise an error with <hostdev/>, but it can actually be
<interface/>, so we need to check if hostdev device was created
by us from interface and show the right error message.
Luke Yue [Mon, 12 Jul 2021 11:32:16 +0000 (19:32 +0800)]
test_driver: Introduce testDomainObjCheckTaint
In order to test the virDomainGetMessages for test driver, we need to
check some taints or deprecations, so introduce testDomainObjCheckTaint
for checking taints.
As we introduced testDomainObjCheckTaint for test driver, the `dominfo`
command in virshtest will now print tainting messages, so add them for
test.
Signed-off-by: Luke Yue <lukedyue@gmail.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The current docker:dind container has broken default seccomp filter that
results in clone3 being blocked, which in turn breaks Fedora 35 rawhide.
This custom image has a workaround that causes the seccomp filter to
return ENOSYS for clone3 instad of EPERM, thus triggering glibc to
fallback to clone correctly.
Reviewed-by: Erik Skultety <eskultet@redhat> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Michal Privoznik [Wed, 28 Jul 2021 11:32:10 +0000 (13:32 +0200)]
vmx: Parse vm.genid
The VMware metadata file contains genid but we are not parsing
and thus reporting it in domain XML. However, it's not as
straightforward as one might think. The UUID reported by VMware
is not in its usual string form, but split into two signed long
longs. That means, we have to do a bit of trickery when parsing.
But looking around it's the same magic that libguestfs does:
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1598348 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
virnvme: Duplicate index in nested loop in virNVMeDeviceListCreateReAttachList
When loop in function virNVMeDeviceListCreateReAttachList() there may be
reused index @i, this patch fix this by using a new @j.
Signed-off-by: Jia Zhou <zhou.jia2@zte.com.cn> Signed-off-by: Yi Wang <wang.yi59@zte.com.cn> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Boris Fiuczynski [Wed, 28 Jul 2021 12:36:00 +0000 (14:36 +0200)]
NEWS: Add new launch security type s390-pv
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Reviewed-by: Viktor Mihajlovski <mihajlov@linux.ibm.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Wed, 28 Jul 2021 07:38:44 +0000 (09:38 +0200)]
NEWS: Mention fix for 'copy_on_read' disks with trimming enabled
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Peter Krempa [Tue, 27 Jul 2021 17:12:09 +0000 (19:12 +0200)]
qemu: block: Pass discard requests through the copy-on-read block filter
We need to pass the 'trim' requests through the copy-on-read filter so
if a user configures a discard policy on the disk the requests get
through to the appropriate format layer in the blockdev tree.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1986509 Reported-by: Richard W.M. Jones <rjones@redhat.com> Tested-by: Richard W.M. Jones <rjones@redhat.com> Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Richard W.M. Jones <rjones@redhat.com>
Ján Tomko [Tue, 27 Jul 2021 10:39:50 +0000 (12:39 +0200)]
schema: make target mandatory for filesystems
Commit 12967c3e13 incorrectly made the target optional.
The validation was re-introduced by commit e8863b91f (which
put it into FSDefValidate instead of the parser), but
it did not amend the schema to make it mandatory again.
The nature of Fedora rawhide means that it will inevitably have failures
periodically. Currently it is failing to even update packages due to
glibc switching to use of clone3 syscall, which is mistakenly blocked by
seccomp in container runtimes using EPERM instead of ENOSYS.
When we fail to build the rawhide containers, it is quite likely that we
still have the previous build available in the gitlab registry, so it is
reasonable to allow the container job to fail and try the build job
anyway.
Ideally we would ignore the container build failure if-and-only-if the
previous container was build with the same list of packages. We don't
record the original dependency package list though, so that's not
currently possible.
Reviewed-by: Peter Krempa <pkrempa@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Yang Fei [Thu, 22 Jul 2021 08:05:01 +0000 (16:05 +0800)]
util: Add virHostCPUGetHaltPollTime
Add helper function virHostCPUGetHaltPollTime to obtain halt polling
time. If the kernel support halt polling time statistic, and mount
debugfs. This function will take effect on KVM VMs.
Signed-off-by: Yang Fei <yangfei85@huawei.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Mon, 22 Feb 2021 16:55:12 +0000 (17:55 +0100)]
qemuBlockReopenFormatMon: Adapt to new argument format of 'blockdev-reopen'
This function was added prior 'blockdev-reopen' being stable and qemu
changed the arguments to actually contain an array of block node
definitions to reopen.
In our case we are just changing between read-only and read-write modes
and thus we can keep operating on the nodes one-by-one.
Modify the code to add the wrapper array.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Notable changes are:
- stabilization of 'blockdev-reopen'
- addition of the 'vmx-tsc-scaling' cpu flag
- Supported display types are now in the schema only if they are compiled in.
- rbd image encryption
- 'aio-max-batch' iothread property
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
qemu_vhost_user: don't raise error for unknown features
Similar to what was done for qemu_firmware.c in 61d95a1073, don't
report an error for unknown vhost-user features, just log it and
correctly continue on
Reviewed-by: Peter Krempa <pkrempa@redhat.com> Signed-off-by: Cole Robinson <crobinso@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>
'obj->classIdMap' is a bitmap with size of '16', thus the first 3 bits
are guaranteed to be available. Use 'virBitmapSetBit' instead of
'virBitmapSetBitExpand' since we don't need any expansion and ignore
errors as they are impossible.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
projects / libvirt.git / log