Commit Graph
100 Commits
Author SHA1 Message Date
Peter Krempa a9f76d6ab7 Don't overwrite error message from 'virXPathNodeSet'
'virXPathNodeSet' returns -1 only when 'ctxt' or 'xpath' are NULL or
when the 'xpath' string is invalid. Both are programming errors. It
doesn't make sense for the code to overwrite the error message for
anything supposedly more relevant.

The majority of calls to 'virXPathNodeSet' already didn't do this, so
this patch fixes the rest to prevent it from spreading again.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-31 17:24:07 +01:00
Peter Krempa 9eda33161f tests: Test the previously mishandled PCI VPD characters
Modify the test data to validate '<>' and other characters.
Unfortunately the test suite doesn't have a proper end-to-end test, thus
we just add a XML->XML variant and also add data to the binary parser.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-31 17:24:07 +01:00
Peter Krempa edaa1112ff schema: nodedev: Adjust allowed characters in 'vpdFieldValueFormat'
The check in 'virPCIVPDResourceIsValidTextValue' allows any printable
characters, thus the XML schema should do the same.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-31 17:24:07 +01:00
Peter Krempa 2ccac1e42f virNodeDeviceCapVPDFormat: Properly escape system-originated strings
Similarly to previous commit other specific fields which come from the
system data and aren't sanitized enough to be safe for XML were also
formatted via virBufferAsprintf.

Other static and safe strings used virBufferEscapeString instead of
virBufferAddLit.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-31 17:24:07 +01:00
Peter Krempa 5373b8c02c virNodeDeviceCapVPDFormatCustom*: Escape unsanitized strings
The custom field data is taken from PCI device data which can contain
any printable characters, and thus must be escaped when putting into
XML.

Originally, based on the comment and XML schema which was fixed in
previous commits the idea seemed to be that the parser would validate
that only characters which don't break the XML would be present but that
didn't seem to materialize.

Switch to proper escaping of the XML.

Fixes: 3954378d06
Resolves: https://issues.redhat.com/browse/RHEL-22314
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-31 17:24:06 +01:00
Peter Krempa eb3844009d util: pcivpd: Refactor virPCIVPDResourceIsValidTextValue
The function is never called with NULL argument. Remove the check and
refactor the rest including the debug statement.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-31 17:24:06 +01:00
Peter Krempa 42df6cc1b4 virPCIVPDResourceIsValidTextValue: Adjust comment to reflect actual code
The function does not reject '&', '<', '>' contrary to what it actually
states. Move and adjust the comment.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-31 17:24:06 +01:00
Peter Krempa 36e11cca83 qemuMigrationDstStartNBDServer: Refactor cleanup
There's nothing under the 'cleanup:' label thus the whole code can be
simplified.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-31 15:25:54 +01:00
Peter Krempa 43f027b57c qemu: migration: Properly handle reservation of manually specified NBD port
Originally the migration code didn't register the NBD disk port with the
port allocator when it was manually specified. Later when commit
e74d627bb3 refactored the code and started registering it, the
old logic which was clearing 'priv->nbdPort' in case when it was manually
specified was not removed.

This caused following problems:
 - the port was not released after successful migration
 - the port was released even when it was not allocated on failures
   regarding the NBD server start
 - the port was not released on other failures of the migration after
   NBD server startup

To address this we remove the assumption that 'priv->nbdPort' is used
only for auto-allocated port and fill it only once the port is
allocated and make the caller of qemuMigrationDstStartNBDServer
responsible for releasing it.

Fixes: e74d627bb3
Resolves: https://issues.redhat.com/browse/RHEL-21543
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-31 15:25:54 +01:00
Peter Krempa 19eaa85438 util: virtportallocator: Add VIR_DEBUG statements for port allocations and release
Add a few debug statements to be able to trace lifetime of a
reserved/allocated port.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-31 15:25:53 +01:00
Peter Krempa c697aff8a1 remoteDispatchAuthPolkit: Fix lock ordering deadlock if client closes connection during auth
Locks in following text:
A: virNetServer
B: virNetServerClient
C: daemonClientPrivate

'virNetServerSetClientAuthenticated' locks A then B

'remoteDispatchAuthPolkit' calls 'virNetServerSetClientAuthenticated'
while holding C.

If a client closes its connection 'virNetServerProcessClients' with the
lock A and B locked will call 'virNetServerClientCloseLocked' which will
try to dispose of the 'client' private data by:

  ref(b);
  unlock(b);
  remoteClientFreePrivateCallbacks();
  lock(b);
  unref(b);

Unfortunately remoteClientFreePrivateCallbacks() tries lock C.

Thus the locks are held in the following order:

 polkit auth: C -> A
 connection close: A -> C

causing a textbook-example deadlock. To resolve it we can simply drop
lock 'C' before calling 'virNetServerSetClientAuthenticated' as the lock
is not needed any more.

Resolves: https://issues.redhat.com/browse/RHEL-20337
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2024-01-31 15:25:53 +01:00
Peter Krempa 20e13e3bdc qemuxmlconftest: Move 'qemuxml2xmloutdata' into 'qemuxmlconfdata'
Unify the output directory. Symlinks needed to be adapted to work
properly, but the 'qemuxml2argvdata' symlink can now be removed.

The virschematest exceptions needed to be moved to the proper directory
once the files are moved.

The unification of the output directory now also ensures that files
won't be forgotten once tests are removed.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-24 09:19:28 +01:00
Peter Krempa fb6b391672 qemuxmlconftest: Move data directory 'qemuxml2argvdata' to 'qemuxmlconfdata'
Unify the naming of the data directory with the test name.

'tests/qemuxml2argvdata' is for the time converted to a symlink to
'qemuxmlconfdata', to preserve the symlinks in
'tests/qemuxml2xmloutdata'

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-24 09:19:28 +01:00
Peter Krempa 4702d40aa0 qemuxml2xmloutdata: Drop unused output files
Remove leftover output files. The list of files was identified by
temporarily hacking testConfXMLEnumerate to also enumerate
'tests/qemuxml2xmloutdata' directory.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-24 09:19:27 +01:00
Peter Krempa 8266d80daf qemuxmlconftest: Check also output files for usage
Include also the output files in the validation of used files.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-24 09:19:27 +01:00
Peter Krempa 3e11939e6e qemuxmlconftest: Populate output/error file only when needed
Populate the output filename strings only when the files are expected to
exist, so that other logic can be based on the presence of the strings
rather than having to re-check the test flags for expected state.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-24 09:19:27 +01:00
Peter Krempa f997fcca71 virschematest: Don't bother checking symlinked XMLs
There's plenty symlinks in qemuxml2argvdata and qemuxml2xmlout
directories pointing to other files in the same directory. It makes no
sense to check those files twice, thus we can simply skip symlinks.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-24 09:19:27 +01:00
Peter Krempa 1785eb8dc9 docs: Add redirects configuration for gitlab pages
Adapt the configuration of redirects from the server hosting libvirt.org

The redirect to the 'libvirt-console-proxy' Golang module is not adapted
as it doesn't exist on the current server.

NOTES:
 - The redirects are currently configured for hosting via the
   'gitlab.io/libvirt' URI. For hosting via custom domain it will need
   to be rewritten to drop the '/libvirt' prefixes.

 - gitlab pages doesn't currently support redirects to outside content,
   thus most of the redirects don't actually work:

     https://gitlab.com/gitlab-org/gitlab-pages/-/issues/601

 - The redirects file is only installed in the webpage job but is not
   actually distributed.

 - The validity of the redirects can be checked by visiting:

     https://libvirt.gitlab.io/_redirects

   Having them installed allows us to validate them before we'll be
   switching to use gitlab pages completely.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-01-19 15:51:47 +01:00
Peter Krempa 95011026d1 gitlab-ci: Configure website build to be published via gitlab pages
On pushes to master publish the webpage (built in the 'website_job' job)
via gitlab pages. The 'pages' job uses the default image that gitlab
assumes as it's consuming artifacts from an existing job and naming
them properly.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-01-19 15:51:47 +01:00
Peter Krempa 7a1285216b ci: Regenerate with latest 'lcitool' and fix manual job definitions
The latest lcitool merged the 'prebuilt-env' and 'local-env' jobs into
one which use variables to pick up the right environment and steps
rather than duplicating everything.

Regenerate the generated job definitions, fix the helper definitions
and also fix the manually defined jobs (website-job).

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2024-01-19 14:48:21 +01:00
Peter Krempa 0e3fde136c qemuxml2conftest: Test re-parsing of formatted XML
Re-parse and re-format the output XML to validate that the auto-added
bits and the formatter always agree. There's no way to specify an
alternative output file as a libvirt-formatted XML must be reformatted
identically.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 55839c154d virDomainDefAddConsoleCompat: Fix numbering of console targets after modification
The XML parser for consoles sets the 'port=' attribute of '<target' to
be always the index of the console.

Thus when the "really crazy backcompat stuff for consoles" function
modifies the order of consoles by inserting the default one for a serial
port it must re-number the ports to ensure that the value will not
change on subsequent parse.

This luckily didn't cause any visible changes to the VM as the port
number isn't used for anything.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa f51c6b5b02 qemuDomainAssignPCIAddresses: Assign extension addresses when auto-assigning PCI address
Assigning a PCI address needs to also assign any extension addresses
right away. Otherwise they'd be assigned only after subsequent
format->parse cycle and thus be potentially missing on first run after
defining the VM and thus could change.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 7dd3d77940 qemu: Move 'shmem' device size validation to qemu_validate
The 'size' of a 'shmem' device is parsed and formatted as a "scaled"
value, stored in bytes, but the formatting scale is mebibytes. This
precission loss combined with the fact that the value was validated only
when starting and the size is formatted only when non-zero meant that
on first parse a value < 1 MiB would be accepted, but would be formatted
to the XML as 0 MiB as it was non-zero but truncated and a subsequent
parse would parse of such XML would parse it as 0 bytes, which in turn
would be interpreted as 'default' size.

Fix the issue by moving the validator, which ensures that the number is
a power of two and more than 1 MiB to the validator code so that it'll
be rejected at XML parsing time.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa deb3c834e5 virDomainAssignControllerIndexes: Ensure controller ordering after assigning indexes
Similarly to auto-adding of controllers, the assignment of indexes can
cause them to be considered in different ordering according to the logic
in 'virDomainControllerInsert' than they currently are.

To prevent changes in commandline between first run after defining a VM
xml and any subsequent run or restart of the daemon, we need to reorder
them when assigning the index.

The simplest method is to assign indexes and then create a new list of
controllers and re-instert them.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 4bc82cd7eb conf: domain: Insert auto-added controllers in same order as in XML parser
'virDomainDefAddController' which is used in code-paths which auto-add
controllers to the definition such as 'virDomainDefMaybeAddController',
'virDomainDefAddUSBController', 'qemuDomainDefAddDefaultDevices' was
adding the controller at the end of the list. However that is not how
the XML parser would order the controller in the list as it uses
virDomainControllerInsert grouping them by type and additional
properties.

This would cause that auto-added controllers would re-order:
 - between first and any subsequent run of the VM (even on commandline)
 - after a libvirtd/virtqemud restart
 - after any update of the definition based on the 'define' operation
   (e.g. virsh edit)

To ensure that the ordering of controllers is identical always use
virDomainControllerInsert.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 5fb20c9902 virDomainDefMaybeAddVirtioSerialController: Reformat hard to read linebreaks
Format the code the usual way despite having more than 80 columns so
that it's easier to read.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 5969ad097d tests: Rename 'qemuxml2argvtest' to 'qemuxmlconftest'
Since this tests inactive/config XML files rename it accordingly.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa f588a5a996 meson: tests: Allow 'timeout' override for all tests
Don't special-case qemuxml2argvtest's handling of timeout but rather
allow each test array entry to have it's own.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa a61230ef26 qemuxml2argvtest: Populate all outstanding def->xml cases
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 70c6084cf0 tests: Remove qemuxml2xmltest
The full functionality was merged into qemuxmlconftest.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 463c78d949 qemuxml2argvtest: Test (inactive) def -> xml conversion
This is an intermediate step to merge qemuxml2xmltest into this common
helper. This eliminates double setup/parsing of the input data as well
as will ensure that all input XMLs are tested both for ARGV as well as
XML output. For now we skip tests that don't have an output XML to show
that the this does everything that qemuxml2xmltest does.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa a6eed3bf27 qemuxml2argvtest: Add parsing of the input XML as separate test
Get clean separation between the parsing and argv conversion so that
it's obvious in the test output:

2409) QEMU XML def parse s390-async-teardown.s390x-6.0.0                ... libvirt: QEMU Driver error : unsupported configuration: asynchronous teardown is not available with this QEMU binary
OK
2410) QEMU XML def -> ARGV s390-async-teardown.s390x-6.0.0              ... SKIP

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 75f7105f5c qemuxml2argvtest: Extract setup/parse step
Extract the common setup and parsing of the input XML into a separate
helper testQemuConfXMLCommon(). The helper has semantics which will
allow us to call it from multiple places so that VIR_TEST_RANGE will
still work properly even when we'll add multiple steps reusing the
prepared data.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 002daa184d qemuxml2argvtest: Setup fake driver only once
Move the setup of the fake driver from testCompareXMLToArgv to 'mymain'.
With this we also won't need to reset the fake drivers which was done
only partially.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 59d70e3a41 qemuxml2argvtest: Use virDomainDefParseFile instead of virXMLParse+virDomainDefParseNode
As we don't do any additional parsing of the input file in
qemuxml2argvtest we can simplify the code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa afe5c6f504 qemuxml2argvtest: Remove unused separate parsing of arch
Prior to all tests being converted to "DO_TEST_CAPS*" invocation the
fake-caps tests required knowing the architecture, which was pre-parsed
in qemuxml2argvtest. This code was now removed, but the arch parser was
forgotten.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa eb994dee5b qemuxml2xmltest: Remove pointless inactive->active testing
'virDomainDefFormatInternalSetRootName' which is the top level XML
formatter function has the following condition as the very first thing:

     if (def->id == -1)
         flags |= VIR_DOMAIN_DEF_FORMAT_INACTIVE;

This makes it pointless to separately do inactive->active and
inactive->inactive XML -> XML testing as both will be in the end treated
as inactive->inactive.

This patch adds a warning to virDomainDefFormatInternalSetRootName and
removes the second pointless invocation of the test from
qemuxml2xmtest.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa b4e8196c50 qemuxml2*test: Remove FLAG_SKIP_CONFIG_ACTIVE flag
Neither qemuxml2argvtest nor qemuxml2xmltest now test configs parsed as
active, thus this flag is no longer needed.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 66eeeb610c qemuxml2xmltest: Parse all input files as inactive
In previous patches we've added testing of XML's explicitly parsed as
active (ensuring that it e.g. has a domain id) formatted into both
active and inactive versions.

Now qemuxml2xmltest can be simplified by making it test only XMLs parsed
as inactive.

To do this we pass VIR_DOMAIN_DEF_PARSE_INACTIVE in parseFlags. This
will also cause that all output files will become identical so the setup
of the test cases can be simplified by using the non-split output file
name.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa ae87e46a99 qemuxmlactivetest: Add qemu active XML to active/inactive XML tests
Add explicit test cases for XMLs from qemuxml2argvdata which
historically had different output in qemuxml2xmltest.

qemuxmlactivetest explicitly ensures that the input XMLs are parsed in
'live' state and formatted both in inactive as well as live state,
rather than the previously present inactive->inactive,  live->live tests
only.

The XMLs picked in this case are those which had separate output files
in qemuxml2argvtest.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa a895686bd1 qemuxmlactivetest: Prepare for proper active/inactive -> active/inactive testing
Currently the xml->xml testing we have in qemuxml2xmltest covers only 3
of the 4 possibilities:

By invocation:
  active -> active;
  inactive -> inactive;

by unintentionally:
  active -> inactive  (for configs which don't set an 'id' as the
                       formatter assumes it's inactive)

To do it better introduce proper active -> inactive/active testing into
qemuxmlactivetest. It's chosen such as we only really parse an XML as
live when restoring a status XML. To give users possibility to avoid
constructing a full status XML add a simpler variant. As of such it will
be used only for configs where we specifically cared about parsing live
data.

To ensure that the formatter doesn't decide that a config is inactive
because it doesn't have an ID we fill in a domain ID if it was not
present in the source.

In this patch the tests are not yet added.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:31:12 +01:00
Peter Krempa 3b04d48192 qemu*xml2*test: Invoke tests from a function
Refactor the code so that the test macros invoke a helper function with
no additional steps. This change prevents regressions in compilation
time when adding extra steps for the tests, which happen when the test
macro gets too complicated.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 17:30:30 +01:00
Peter Krempa aecd5085db testutilsqemu: Create a typedef for struct testQemuInfo
The typedef will come in handy to create an autoptr cleaning function
later on.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 16:39:50 +01:00
Peter Krempa 06c1ab8222 tests: Rename 'qemustatusxml2xmltest' to 'qemuxmlactivetest'
The test will be testing both status XMLs and active XMLs. Rename it to
a shorter name.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 16:39:25 +01:00
Peter Krempa 0253d145e9 testCompareDomXML2XMLFiles: Sanitize handling of 'parse_flags'
Get rid of the extra temporary variable and set the parse and format
flags based on liveness together.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 16:39:06 +01:00
Peter Krempa 6443d77239 qemuxml2xmltest: Use same parameters as in qemuxml2argvtest for 'riscv64-virt'
The main idea of the test is to validate config when PCIe is compiled
out.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 16:38:51 +01:00
Peter Krempa 03be1ce8cd qemuxmlargvdata: disk-network-nfs: Drop 'index' attribute from backing store
Index is auto-allocated normally. Additionally we now don't need the
extra active/inactive version of this test.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 16:38:40 +01:00
Peter Krempa 904af0feee qemuxml2xmltest: Add invocation for 'numatune-auto-nodeset-invalid' case
The test case requires an exception in virschematest as the output file
is no longer invalid.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 16:38:36 +01:00
Peter Krempa ad42a7e074 virschematest: Add possibility to have exceptions from the '-invalid' suffix
The exception is needed in qemuxml2xmltest which is in one instance
testing update from an invalid config to a valid one. Currently the
compliance with the test is achieved via a hack.

As further patches will be simpler without the hack present we need a
way to invert the expected output in specific cases.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-17 16:22:55 +01:00
Peter Krempa 9139cf44d4 vshAdmCatchDisconnect: Don't probe connection URI
virsh already stores the connection URI in 'ctl->connname', use that
instead.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-15 14:05:20 +01:00
Peter Krempa 6f956696cb vshAdmConnect: Preserve connection URI in ctl->connname if auto-detected
Probe the current URI so that other places don't need to do that.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-15 14:05:20 +01:00
Peter Krempa 4763f62a96 virshCatchDisconnect: Don't probe connection URI
virsh already stores the connection URI in 'ctl->connname', use that
instead.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-15 14:05:20 +01:00
Peter Krempa 06f6d76334 virshReconnect: Preserve current URI if not explicitly set in ctl->connname
Probe the current URI so that other places don't need to do that.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-15 14:05:20 +01:00
Peter Krempa a6f73c69a7 NEWS: Mention migration fixes and iothread mapping
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2024-01-12 10:50:06 +01:00
Peter Krempa ee334337a0 tests: Add xml->argv and xml->xml tests for the new iothread mapping feature
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-08 09:27:31 +01:00
Peter Krempa 397218c433 qemu: Implement support for configuring iothread to virtqueue mapping for disks
Add validation and formatting of the commandline arguments for
'iothread-vq-mapping' parameter. The validation logic mirrors what qemu
allows.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-08 09:27:31 +01:00
Peter Krempa 0cb7b1b2c3 conf: Add possibility to configure multiple iothreads per disk
Introduce a new <iothreads> sub-element of disk's <driver> which will
allow configuring multiple iothreads and also map them to specific
virt-queues of virtio devices.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-08 09:27:31 +01:00
Peter Krempa ee7121ab8e qemu: capabilities: Introduce QEMU_CAPS_VIRTIO_BLK_IOTHREAD_MAPPING
The capability represents the support for mapping virtqueues to
iothreads for the 'virtio-blk' device.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-08 09:27:31 +01:00
Peter Krempa 08a7fc834c util: xml: Return GPtrArray from virXMLNodeGetSubelement
Rework the helper to use a GPtrArray structure to simplify callers.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-08 09:27:31 +01:00
Peter Krempa 765edaf171 qemucapabilitiesdata: Add data for the qemu-9.0 development cycle
Add data for the qemu-9.0 development cycle based on
'v8.2.0-196-g7425b6277f'

Notable changes:
 - new machine types added
 - 'iommufd' object added
 - 'vfio-pci' device added 'fd' and 'iommufd' properties
 - 'virtio-blk-pci' device added 'iothread-vq-mapping' property

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2024-01-08 09:27:31 +01:00
Peter Krempa 72b76cf9bb libvirt.spec: Fix nbdkit selection logic on mingw and old rhel
rhel-8 lacks 'pidfd_open()' support and thus nbdkit can't be enabled
there.

mingw builds explicitly disable nbdkit support, but use
'--auto-features=enabled' thus omitting setting of
'nbdkit_config_default' results in meson thinking we want to enable it:

  ../meson.build:1018:2: ERROR: Problem encountered: nbdkit_config_default requires nbdkit to be enabled

Disable it explicitly. The meson logic might need to be fixed eventually
when switching it on by default.

Fixes: 9eabf14afb
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2024-01-05 11:08:41 +01:00
Peter Krempa 3a85755f66 qemuxml2argvtest: Add checker that all input files are used
To prevent regressions when refactoring tests and accidentally forgotten
input files make sure that qemuxml2argvtest is invoked for all input
files in tests/qemuxml2argvdata

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 91116e35b6 qemuxml2argvtest: Mark 'nbdkit' tests as skipped if nbdkit is not compiled in
Rather than completely compiling out the tests mark them as skipped.
This will allow us to add a checker that all input files are accounted
for.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa ec4d36e558 qemuxml2argvtest: Add test cases covered only by qemuxml2xmltest - part 2
Add the rest of test cases which were tested only by qemuxml2xmltest.

All test cases added here have a '<interface type="network"' which needs
to be translated using the new fake network driver.

Note that this captures the status quo of the tests. No care was given
whether the tests make sense.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 72d13d37e3 virnetworkportxml2xmltest: Add simple versions of bridge/network tests
Add versions stripping vlans and bandwidth setup so that they can be
used in qemuxml2argvtest for interfaces which don't support the above.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa b5664c73b3 qemuxml2argvtest: Enable 'graphics-listen-network' case
Use the data from 'nat-network' network definition to enable the test
case also for xml2argvtest.

Since the network listen bit doesn't need any plug definition just use
an empty string.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa dbe85bd095 qemuxml2xmltest: Introduce fake network driver
In order to be able to use '<interface type="network"' we need a fake
network driver in qemuxml2argvtest. Create one by simply allowing users
to reuse configs from tests/networkxml2xmlin and tests/virnetworkportxml2xmldata
which will be returned to corresponding functions.

The driver implements:

    .networkLookupByName = fakeNetworkLookupByName,
      - validate syntax of network name, check if config exists
    .networkGetXMLDesc = fakeNetworkGetXMLDesc,
      - return appropriate XML
    .networkPortCreateXML = fakeNetworkPortCreateXML,
      - validate that port XML exists
    .networkPortGetXMLDesc = fakeNetworkPortGetXMLDesc,
      - return appropriate port XML

With the above and the correspondign test data, all network XMLs can be
enabled.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 1948244461 qemuxml2argvmock: Mock virNetDevSetMTU
Unfortunately the network backend commandline formatter attempts to also
setup the backend itself, which it really should not.

For now make sure qemuxml2argvtest can call virNetDevSetMTU.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 2da71d8e43 qemu: process: Separate setup of network device objects
Separate the SLIRP bits from 'qemuProcessNetworkPrepareDevices' and do
the setup of the internal data when setting up domain data.

This will allow tests to use the same code path to lookup data for a
network.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 8ea1aba680 qemuxml2xmltest: Delete 'interface-driver' case
Everything this XML tests is already explicitly covered in other tests.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 41badebf16 qemuxml*test: Improve 'vhost_queues' test case
Modify the test case so that it can be used also for qemuxml2argvtest
by removing invalid configuration (interface type='user' + queues),
clean up unneeded disks and rename it accordingly. Also test the
ioeventfd.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa aa4c190733 qemuxml2*test: Add specific test case for interface link state
Test both linkstates in an explicit test case. Note that link state is
setup via monitor, thus not visible on the commandline.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 44ee6d67ae qemuxml2xmltest: Move 'graphics-listen-network2' case go genericxml2xmltest
The tested configuration is not valid for a qemu VM. Move it to the
generic test.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 9dcdca2692 qemuxml2argvtest: Add test cases covered only by qemuxml2xmltest - part 1
There were plenty of test cases invoked only from qemuxml2xmltest but
not from qemuxml2argvtest, either by accident or it was deemed unneeded.

Bulk-add all test cases which fit the above description which don't
require faking the network driver. Use same invocation as present in
qemuxml2xmltest.

Arguably in certain cases we could move the test case to
genericxml2xmltest, but this covers the cases when that would not be
appropriate.

Tests requiring the network driver will be bulk-added when the fake
network driver will be implemented.

This patch also allows the use of FLAG_SKIP_CONFIG_ACTIVE in
qemuxml2argvtest although the flag will be dormant for now.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa b448abd972 qemuxml2argvmock: Mock qemuInterfaceBridgeConnect
Prepare for test cases which would want to call that function.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa f9a4d24b24 qemuxml2argvtest: Check for duplicate invocation of tests
Prevent duplicated invocation of tests by tracking use of output files.
Some cases need to be exempt from this for now.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 014515eb4e qemuxml2argvtest: Remove duplicated invocations of tests
'parallel-tcp-chardev', 'parallel-parport-chardev' are invoked twice
with exactly the same parameters, remove the duplicity.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa 2b9875d766 qemuxml2argvdata: Move 'smbios-multiple-type2' case to genericxml2xmltest
The qemu driver explicitly rejects such configuration, thus this is just
a generic XML2XML test case. Move it.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa cd6a58e747 qemuxml2argvtest: Reinstate 'pseries-vio-address-clash' case
The case was removed in commit 8ff73d22c7
which modernized the cases without an explicit reason. Reinstate it.

Fixes: 8ff73d22c7
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:26:10 +01:00
Peter Krempa e991dc3487 qemuxml2argvtest: Fix and use 'disk-network-ssh-key' case
The test case was introduced by commit 68599168ea
but is only used in the qemunbdkittest. Fix it and make use of it also
in qemuxml2argvtest.

Fixes: 68599168ea
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:25:23 +01:00
Peter Krempa 3cc147cce4 qemuxml2argvtest: Reinstate 'console-compat-chardev' and 'pci-serial-dev-chardev'
The tests invocations were accidentaly removed in commit
54257ed51b

Fixes: 54257ed51b
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-04 22:23:51 +01:00
Peter Krempa de49ec50b8 qemucapabilitiesdata: Final update of 'caps_8.2.0_x86_64'
QEMU 8.2 was released, update the x86_64 data for a final time.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2024-01-03 15:33:05 +01:00
Peter Krempa 19ce02c773 qemuDomainBlockPeek: Fix format checking logic
Recent refactor which changed the format check to use
qemuBlockStorageSourceIsRaw accidentaly inverted the condition.

Caught by the CI test suite.

Fixes: b600b69f82
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2023-12-16 09:20:41 +01:00
Peter Krempa 641ed83e3d qemuDomainBlockResize: Properly resize disks with storage slice
Until now resizing a disk with a storage slice would break in one of the
following ways:

1) for a non-raw format, the virtual size would change, but the slice
would still remain in place
2) for raw disks qemu would refuse to change the size

The only reasonable scenario we want to support is a 'raw' image with 0
offset (inside a block device), where we can just drop the slice.

Anything else comes from a non-standard storage setup that we don't want
to touch.

To facilitate the resize, we first remove the 'size' parameter in qemu
thus dropping the slice and then instructing qemu to resize the disk.

Resolves: https://issues.redhat.com/browse/RHEL-18782
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:12:04 +01:00
Peter Krempa d552d02265 virStorageSourceSliceFree: Export function
The function will be used in the code for resizing block devices with a
slice.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:11:07 +01:00
Peter Krempa 48704d4605 qemu: block: Format storage slice properties optionally
Prepare the blockdev props formatter to skip formatting the slice props
in case they are not applicable.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:11:07 +01:00
Peter Krempa a2cc772031 qemu: block: Make 'slice' layer effective for 'raw' storage source
Rather than pulling the configuration of the storage slice into the
'format' layer make the 'slice' layer effective for raw disks with a
storage slice. This was made possible by the recent refactors which made
the 'format' layer optional if not needed.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:11:07 +01:00
Peter Krempa d09f46a9fb qemuDomainBlockResize: Implement VIR_DOMAIN_BLOCK_RESIZE_CAPACITY
Resizing of block-backed storage requires the user to pass the exact
capacity of the device. Implement code which will query it instead so
the user doesn't need to do that.

Closes: https://gitlab.com/libvirt/libvirt/-/issues/449
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:11:07 +01:00
Peter Krempa 04adeac76e virDomainBlockResize: Introduce VIR_DOMAIN_BLOCK_RESIZE_CAPACITY
Allow users to easily resize 'raw' images on block devices to the full
capacity of the block device. Obviously this won't work on file-backed
storage (filling the remaining capacity is most likely wrong) or for
formats with metadata due to the overhead.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:09:05 +01:00
Peter Krempa a7b357fd5c vsh: Introduce simple version of VSH_ALTERNATIVE_OPTIONS_EXPR
VSH_ALTERNATIVE_OPTIONS takes just the name of the options instead of
requiring also the getter functions.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:06:23 +01:00
Peter Krempa 59ec4c6619 qemuDomainBlockResize: Agregate all checks at the beginning
Move the check for readonly and empty disks to the top where all other
checks will be done.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:06:23 +01:00
Peter Krempa b600b69f82 qemu: Use qemuBlockStorageSourceIsLUKS/qemuBlockStorageSourceIsRaw
Refactor code checking whether image is raw. This fixes multiple places
where a LUKS encrypted disk could be mistreated.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:04:27 +01:00
Peter Krempa 04b94593d1 qemu: block: Introduce helpers for properly testing for 'raw' and 'luks' images
Unfortunately a LUKS image to be decrypted by qemu has
VIR_STORAGE_FILE_RAW as format, but has encryption properties populated.

Many places in the code don't check it properly and also don't check
properly whether the image is indeed LUKS to be decrypted by qemu.

Introduce helpers which will simplify this task.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Spellchecked-by: Ján Tomko <jtomko@redhat.com>
2023-12-14 16:03:40 +01:00
Peter Krempa aded3c622f qemu: migration: Automatically fix non-shared-storage migration to bigger block devices
QEMU's blockdev-mirror job doesn't allow copy into a destination which
isn't exactly the same size as source. This is a problem for
non-shared-storage migration when migrating into a raw block device, as
there it's very hard to ensure that the destination size will match the
source size.

Rather than failing the migration, we can add a storage slice in such
case automatically and thus make the migration pass.

To do this we need to probe the size of the block device on the
destination and if it differs form the size detected on the source we'll
install the 'slice'.

An additional handling is required when persisting the VM as we want to
propagate the slice even there to ensure that the device sizes won't
change.

Resolves: https://issues.redhat.com/browse/RHEL-4607
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-13 20:15:50 +01:00
Peter Krempa 814069bd56 qemu: Move and export qemuDomainStorageUpdatePhysical and dependencies
Move qemuDomainStorageUpdatePhysical, qemuDomainStorageOpenStat,
qemuDomainStorageCloseStat to qemu_domain.c and export them. They'll be
reused in the migration code.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-13 20:15:49 +01:00
Peter Krempa 426eeb0d3c qemu: migration: Rename qemuMigrationDstPrecreateStorage to qemuMigrationDstPrepareStorage
The function will be used to setup storage for non-shared-storage
migration, not just precreate images.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-13 20:15:49 +01:00
Peter Krempa f0fe94605c qemuDomainStorageOpenStat: Remove unused 'driver' argument and untangle callers
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-13 20:15:49 +01:00
Peter Krempa 6a38559092 qemu: migration: Improve handling of VIR_MIGRATE_PARAM_DEST_XML with VIR_MIGRATE_PERSIST_DEST
When a user provides a migration XML via the VIR_MIGRATE_PARAM_DEST_XML
it's expected that they want to change ABI-compatible aspects of the XML
such as the disk paths or similar.

If the user requests persisting of the VM but does not provide an
explicit persistent XML libvirt would take the persistent XML from the
source of the migration as the persistent config. This usually involves
the old paths to images.

Doing this would result into failure to start the VM.

It makes more sense to take the XML used for migration and use that as
the base for persisting the config.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-13 20:15:49 +01:00
Peter Krempa 7c1244f3a5 qemuMigrationDstPrecreateStorage: Fix and clarify logic
While it's intended that qemuMigrationDstPrecreateDisk is called with
any kind of the disk, the logic in qemuMigrationDstPrecreateStorage
which checks the existence of the image wouldn't properly handle e.g.
network backed disks, where it would attempt to use virFileExists() on
the disk's 'src->path'.

Fix the logic by first skipping disks not meant for migration, then do
the existence check only when 'disk->src' is local storage.

Since qemuMigrationDstPrecreateDisk has a debug statement there's no
need to have an extra one right before calling into it.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2023-12-13 20:15:49 +01:00