Andrea Bolognani [Wed, 29 Nov 2023 14:50:30 +0000 (15:50 +0100)]
rpcgen: Don't skip all tests when pytest is missing
Some of the files used by test_demo.c can only be regenerated
when pytest is present, but we have pre-generated copies in the
repository, so overall we just need the C compiler to build and
run that specific test program.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Peter Krempa [Fri, 1 Dec 2023 09:28:48 +0000 (10:28 +0100)]
qemuProcessStartWithMemoryState: Don't start qemu with '-loadvm SNAP' and '-incoming defer' together
A bug in qemuProcessStartWithMemoryState caused that we would start qemu
with '-loadvm SNAP' and '-incoming defer' together. qemu doesn't expect
that and crashes on an assertion failure [1].
[1]: https://issues.redhat.com/browse/RHEL-16782
Fixes: 8a88d3e5860881f430e528d3e5e8d6455ded4d1d
Resolves: https://issues.redhat.com/browse/RHEL-17841 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Michal Privoznik [Wed, 29 Nov 2023 11:30:16 +0000 (12:30 +0100)]
rpcgen: tests: Run cleanly on platforms where char is unsigned
There are some platforms where 'char' is unsigned, by default
(RPi, s390x to name a few). And because of how test_demo is
written we are experiencing some test cases failing there. For
instance: /xdr/struct-scalar is failing. This is because in the
test (test_struct_scalar()), we have a struct with two chars. One
is initialized to 0xca, the other 0xfe (note that both have the
MSB set). The XDR encoder (xdr_TestStructScalar()) then calls
xdr_char() on both of them. But XDR itself has no notion of
char type, so under the hood, it expands it to int [1] and calls
xdr_int(). And this is where the problem lies. On platforms where
char is signed, the integer expansion results in 0xffffffca, but
on platforms where char is unsigned it results in 0x000000ca. Two
distinct results.
The test then goes and compares the encoded buffer with an
expected one (memcmp(), read from the disk earlier).
This poses no problem for real life use, because when decoding
those chars back, the padding is thrown away.
To avoid tickling this issue, use values that don't have the MSB
set.
Fixes: 40cbaa8fbe rpcgen: add test case for XDR serialization Reported-by: Boris Fiuczynski <fiuczy@linux.ibm.com> Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Michal Privoznik [Wed, 29 Nov 2023 11:22:21 +0000 (12:22 +0100)]
rpcgen: tests: Allow running test_demo from anywhere
The test_demo program compares whether XDR encoded data match the
expected output as read from a file. But the file path is not
absolute and thus relative to CWD which means the program can run
only from one specific directory.
Do what we do in the rest of our test suite: define 'abs_srcdir'
macro and prefix the path with it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Michal Privoznik [Tue, 28 Nov 2023 15:35:22 +0000 (16:35 +0100)]
ch: Don't leak ch_driver->chCaps
During CH driver initialization (chStateInitialize()) the
driver's capabilities bitmap is allocated
(virCHCapsInitCHVersionCaps()), but corresponding free call is
missing in chStateCleanup().
And while at it, reorder calls to virObjectUnref() inside of
chStateCleanup() to be the reverse order of that in
chStateInitialize() so that it's easier to spot missing
free/unref call.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Andrea Bolognani [Tue, 28 Nov 2023 17:51:04 +0000 (18:51 +0100)]
rpm: Drop rpcgen Build-Requires once again
We no longer use it, so commit a62486b95fee correctly dropped
the Build-Requires; shortly afterwards, however, I accidentally
reintroduced it by mistake.
Fixes: 3df8cc658ed0ac2f84089ad0db61ba20eb8b8aa7 Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Peter Krempa [Tue, 14 Nov 2023 16:19:10 +0000 (17:19 +0100)]
qemuMigrationSrcNBDStorageCopyBlockdevPrepareSource: Don't setup 'raw' layer for migration NBD connection
The raw driver layer is not needed in this case and can be dropped.
Removing the nodename will cause other pieces of the code to pick up and
stop adding the layer.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 14 Nov 2023 16:07:44 +0000 (17:07 +0100)]
qemuMigrationSrcNBDCopyCancel: Use qemuBlockStorageSourceAttachRollback to detach migration NBD blockdevs
Rewrite the code to use the common tooling for removing blockdevs
instead of the ad-hoc qemuBlockStorageSourceDetachOneBlockdev helper.
Use of the common infrastructure will properly handle cases when the raw
driver is ommited from the block graph.
Since the TLS data object is shared for all migration QMP commands and
objects we need to strip its alias from the definition of the storage
source before attempting to detach it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Wed, 22 Nov 2023 13:42:26 +0000 (14:42 +0100)]
qemu: monitor: Sanitize arguments of qemuMonitorBlockdevReopen
Take the virJSONValue array object which is passed to the
'blockdev-reopen' command as the 'options' argument rather than making
the caller wrap all the properties.
The code was a leftover from the time when the blockdev-reopen command
had a different syntax, and thus can be cleaned up.
Also note that the logging of the node name never worked as the top
level object didn't ever contain a 'node-name' property.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Wed, 22 Nov 2023 13:27:19 +0000 (14:27 +0100)]
qemu: block: Extract logic from qemuBlockReopenReadWrite/ReadOnly
We want to preserve the wrappers for clarity but the inner logic can be
extracted to a common function qemuBlockReopenAccess. In further patches
the code from qemuBlockReopenFormat will be merged into the new wrapper
as well as logic for handling scenarios with missing 'format' layers
will be added.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 3 Nov 2023 13:30:35 +0000 (14:30 +0100)]
qemuDomainPrepareStorageSourceBlockdevNodename: Restructure code to allow missing 'format' layer
Similarly to other bits of code, we don't need to setup the format layer
if it will not be formatted. Add logic which uses
qemuBlockStorageSourceNeedsFormatLayer to see whether the setup of the
format node is needed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 3 Nov 2023 13:29:00 +0000 (14:29 +0100)]
qemuBlockStorageSourceDetachPrepare: Prepare for possibly missing 'format' layer
Setup the data for detaching of the 'format' layer only when it's
present.
Restructure the logic to follow the same order as
qemuBlockStorageSourceAttachPrepareBlockdev in terms of
format/slice/storage -blockdev objects, and drop the now-misleading
comment for 'slice' of raw disks.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 3 Nov 2023 13:26:35 +0000 (14:26 +0100)]
qemuBlockStorageSourceAttachPrepareBlockdev: Prepare for optionally missing format layer
Restructure the code logic so that the function is prepared for the
possibility that the 'format' blockdev layer may be missing if not
needed.
To achieve this we need to introduce logic that selects which node
(format/slice/storage) becomes the effective node and thus formats the
correct set of arguments.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 24 Nov 2023 09:18:56 +0000 (10:18 +0100)]
qemu: block: Use qemuBlockStorageSourceNeedsStorageSliceLayer only for setup
Add a note stating that qemuBlockStorageSourceNeedsStorageSliceLayer
must be used only when setting up a new blockdev, any other case when
the device might been already set up must use the existence of the
nodename to do so.
Adjust qemuBlockStorageSourceAttachPrepareBlockdev to do so and refactor
qemuBlockStorageSourceDetachPrepare to use the same logic.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 23 Nov 2023 21:37:46 +0000 (22:37 +0100)]
storage_file_probe: Treat qcow2 images with protocol drivers in backing store field as raw
qemu allows and in some cases uses protocol driver names ('file',
'host_device', 'nbd', ...) in the 'backing file format' field of a qcow
to denote a image where the dummy 'raw' driver was not used on top.
Adapt our backing store parser for such cases. The examples added in
previous patch show the difference in behaviour.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 23 Nov 2023 19:42:54 +0000 (20:42 +0100)]
virstoragetest: Add test cases for QCOW2 files with a protocol name as backing file format
QEMU allows and in cases where you omit the not-strictly-needed 'raw'
driver on top of raw images automatically uses the protocol name inside
of the 'backing file format' field of the qcow2 image.
Libvirt expects only format names in that field.
Add example images showing this scenario, which will be fixed later.
The qcow2 image files in this commit were formatted as:
Peter Krempa [Fri, 24 Nov 2023 10:22:57 +0000 (11:22 +0100)]
virstoragetest: Format detected/unprocessed backing store format into output files
Compare also the detected format of the backing file
('backingStoreRawFormat' field) into the output data for comparison with
others. Since the ToString function can't convert VIR_STORAGE_FILE_AUTO
use also the numeric value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Fri, 24 Nov 2023 08:26:39 +0000 (09:26 +0100)]
storage_file_probe: Remove BACKING_STORE_OK,BACKING_STORE_INVALID states
Replace the return values by 0 because none of the callers care and some
of the backing store parser functions return this state also in cases
the rest of the code would consider as success.
Subsequently the parsers will be refactored and proper error reporting
returned.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 23 Nov 2023 16:03:32 +0000 (17:03 +0100)]
virStorageFileProbeGetMetadata: Do not partially skip probing of the image
Since we consider the failure of parsing the backing store to be
actually success based on the value we return to the caller, we should
continue parsing also features and the 'compat' field so that we don't
have a partial definition if e.g. the backing store format is not known.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Sat, 25 Nov 2023 07:35:00 +0000 (08:35 +0100)]
bhyve: Add missing enum member to switch() in bhyveBuildSoundArgStr()
In v9.9.0-104-gc472ce024b I've introduced another value to
virDomainAudioType enum. But I forgot to add corresponding case
into switch() in bhyveBuildSoundArgStr().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Michal Privoznik [Wed, 10 May 2023 10:58:44 +0000 (12:58 +0200)]
qemu: Generate cmd line for pipewire audio backend
This is mostly straightforward, except for a teensy-weensy
detail: usually, there's no system wide daemon running, no system
wide available socket that anybody could connect to. PipeWire
uses a per user daemon approach instead. But this in turn means,
that the socket location floats between various locations and is
derived from various environment variables (just like the actual
socket name) and thus we must pass the variables to QEMU.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/560 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Wed, 10 May 2023 10:29:54 +0000 (12:29 +0200)]
conf: Introduce pipewire audio backend
QEMU gained support for PipeWire audio backend (see QEMU commit
of v8.0.0-403-gc2d3d1c294). Its configuration knobs are basically
the same as pulseaudio's, except for PA's server name. Therefore,
a lot of code is copied over from pulseadio and fixed by
s/Pulse/Pipewire/ or s/pulseaudio/pipewire/.
There's one ley difference to PA though: pipewire daemon is
usually on per user basis (just like our qemu:///session).
Therefore, introduce this 'runtimeDir' attribute, which allows
specifying path to pipewire daemon socket (useful for
qemu:///system for instance).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Fri, 24 Nov 2023 10:59:32 +0000 (11:59 +0100)]
virnuma: Avoid integer overflow in virNumaGetPages()
On systems with humongous pages (16GiB) and 32bit int it's easy
to hit integer overflow in virNumaGetPages(). What happens is,
inside of virNumaGetPages() as we process hugepages for given
NUMA node (e.g. in order to produce capabilities XML), we keep a
sum of sizes of pools in an ULL variable (huge_page_sum). In each
iteration, the variable is incremented by 1024 * page_size *
page_avail. Now, page_size is just an uint, so we have:
ULL += U * U * ULL;
and because of associativity, U * U is computed first and since
we have two operands of the same type, no type expansion happens.
But this means, for humongous pages (like 16GiB) the
multiplication overflows.
Therefore, move the multiplication out of the loop. This helps in
two ways:
1) now we have ULL += U * ULL; which expands the uint in
multiplication,
2) it saves couple of CPU cycles.
Resolves: https://issues.redhat.com/browse/RHEL-16749 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 23 Nov 2023 12:43:36 +0000 (13:43 +0100)]
qemu: block: Don't try to merge bitmaps into 'raw' images
If any of the images in a chain above a raw image have bitmaps, libvirt
would attempt to merge them when doing a block commit or block copy
operation, which would result into a error in the logs as creating
persistent bitmaps in a raw image is not supported.
Since libvirt cares only about persistent bitmaps we can simply skip the
operation if the target of a block copy or block commit is a raw image.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 23 Nov 2023 13:07:48 +0000 (14:07 +0100)]
qemu: hotplug: Detect disk backing images before setting up security access
The VM will require access also to the detected images. Unfortunately a
recent reordering of the code introduced a bug where the backing chain
was probed after setting up cgroups/selinux/namespaces, which caused
that any detected images were not allowed/added and qemu was then not
able to use them.
Fixes: 9b8bb536ff999fa61e41869bd98a026b8e23378f Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
virDomainMemoryDefCheckConflict: Check dimm & nvdimm models too
So far we check whether virtio-mem and/or virtio-pmem memory
devices do not overlap with each other. But we allow specifying
address where dimm and nvdimm memory devices are mapped too. And
there are left out from this collision check. Not anymore.
This leaves just sgx model out, but that's expected since it
can't have any address (see virDomainMemoryDefValidate()).
Resolves: https://issues.redhat.com/browse/RHEL-4452 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
domain_validate: Move memdevice address conflict check into a separate function
At the end of virDomainMemoryDefValidate() there's a code that
checks whether two virtio-mem/virtio-pmem devices don't overlap.
Separate this code into its own function
(virDomainMemoryDefCheckConflict()).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Tim Wiederhake [Thu, 9 Nov 2023 13:37:19 +0000 (14:37 +0100)]
cpu_map: Add missing vmx features from MSR 0x48C
Differences from qemu:
* "vmx-ept-uc" (bit 8) and "vmx-ept-wb" (bit 14) are not added to
qemu's list of named features yet, but used in several qemu cpu
models never the less. Add to libvirt regardless.
* "vmx-invvpid-single-context" (bit 41) is erroneously called
"vmx-invept-single-context" in qemu. This is the name of the
feature associated with bit 25 in both libvirt and qemu.
* "vmx-invvpid-single-context-noglobals" (bit 43) is erroneously
called "vmx-invept-single-context-noglobals". Use the correct name.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com> Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Tim Wiederhake [Thu, 9 Nov 2023 12:19:41 +0000 (13:19 +0100)]
cpu_map: No longer ignore vmx- features in sync_qemu_features_i386.py
Some guest OSes require cpu features from the vmx-* family,
e.g. vmx-xsaves. Up to now, libvirt ignored these features as they
were not required yet. qemu does not automatically enable e.g.
"vmx-xsaves" when requesting "xsaves":
Michal Privoznik [Wed, 22 Nov 2023 13:58:49 +0000 (14:58 +0100)]
lib: Replace qsort() with g_qsort_with_data()
While glibc provides qsort(), which usually is just a mergesort,
until sorting arrays so huge that temporary array used by
mergesort would not fit into physical memory (which in our case
is never), we are not guaranteed it'll use mergesort. The
advantage of mergesort is clear - it's stable. IOW, if we have an
array of values parsed from XML, qsort() it and produce some
output based on those values, we can then compare the output with
some expected output, line by line.
But with newer glibc this is all history. After [1], qsort() is
no longer mergesort but introsort instead, which is not stable.
This is suboptimal, because in some cases we want to preserve
order of equal items. For instance, in ebiptablesApplyNewRules(),
nwfilter rules are sorted by their priority. But if two rules
have the same priority, we want to keep them in the order they
appear in the XML. Since it's hard/needless work to identify
places where stable or unstable sorting is needed, let's just
play it safe and use stable sorting everywhere.
Fortunately, glib provides g_qsort_with_data() which indeed
implement mergesort and it's a drop in replacement for qsort(),
almost. It accepts fifth argument (pointer to opaque data), that
is passed to comparator function, which then accepts three
arguments.
We have to keep one occurance of qsort() though - in NSS module
which deliberately does not link with glib.
1: https://sourceware.org/git/?p=glibc.git;a=commitdiff;h=03bf8357e8291857a435afcc3048e0b697b6cc04 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
These replace the existing with_mingw but offer additional
granularity.
The existing _without_mingw knob retains its behavior of
disabling all MinGW builds at once for convenience, while the
newly introduced _without_mingw32/_without_mingw64 knobs make
it possible to disable only one of them.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Peter Krempa [Tue, 21 Nov 2023 15:51:12 +0000 (16:51 +0100)]
qemuDomainAttachDeviceDiskLiveInternal: Add missing jump to 'cleanup' on error
Commit allowing hotplug of CDROMs moved the logic forbidding the hotplug
to the appropriate blocks based on the disk frontend but forgot to
actually bail out on such error.
Fixes: 3078799fef82d45ac10624e3bacded7a285d8a4f Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 21 Nov 2023 16:17:38 +0000 (17:17 +0100)]
qemuDomainAttachDeviceDiskLiveInternal: Fix jumps on error
When I've originally refactored the function in commit 0d981bcefcb5defa2
the logic was still correct, but then later in commit 52f865543920b0
I've moved most of the image setup logic into the function neglecting to
add the 'goto cleanup;' needed to skip over the setup of the disk
images.
Fixes: 52f865543920b0cc5ba93f4407c1b2efdffb8ddc Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Tue, 21 Nov 2023 08:42:16 +0000 (09:42 +0100)]
qemu: validate: Reword error message when CCW addresses are not supported for a machine
Reword the error message to clearly state that the machine type doesn't
support the address type. It doesn't matter which device it's for.
Additionally the alias may be still NULL at the point when the error is
being reported misleading users that they have something wrong with a
specific device.
Resolves: https://issues.redhat.com/browse/RHEL-16878 Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com> Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
The URL to the Coverity tools download has changed; the old one points
to an obsolete version that is not supported anymore. Adjust to point
to the correct and supported tools.
Reviewed-by: Erik Skultety <eskultet@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
src: reject empty string for 'dname' in migrate APIs
A domain name is expected to be non-empty, and we validate this when
parsing XML, or accepting a new name during renames. We fail to
enforce this property, however, when performing a migration. This
was discovered when a user complained about inaccessible VMs after
migrating with the Rust APIs which mistakenly hardcoded 'dname' to
the empty string.
Fixes: https://gitlab.com/libvirt/libvirt-rust/-/issues/11 Reviewed-by: Jiri Denemark <jdenemar@redhat.com> Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Michal Privoznik [Tue, 21 Nov 2023 09:39:58 +0000 (10:39 +0100)]
virxml: Introduce parsing APIs that keep indentation
When parsing an XML it may be important to keep indentation to
produce a better looking result when formatting the XML back.
Just look at all those xmlKeepBlanksDefault() calls just before
virXMLParse() is called.
Anyway, as of libxml2 commit v2.12.0~108 xmlKeepBlanksDefault()
is deprecated. Therefore, introduce virXMLParse...WithIndent()
variants which would do exactly xmlKeepBlanksDefault() did but
with non-deprecated APIs.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Sat, 18 Nov 2023 03:17:47 +0000 (04:17 +0100)]
virXMLParseHelper: Store XML parsing flags in a variable
The virXMLParseHelper() can work in two modes: either it parses a
file or a string. Either way, the same set of flags is specified
in call of corresponding function. Save flags in a local variable
instead.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Mon, 20 Nov 2023 02:18:12 +0000 (03:18 +0100)]
virxml: include <libxml/xmlsave.h> for xmlIndentTreeOutput declaration
After libxml2's commit of v2.12.0~101 we no longer get
xmlIndentTreeOutput declaration by us including just
libxml/xpathInternals.h and libxml2's header files leakage.
Resolves: https://bugs.gentoo.org/917516 Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Tue, 21 Nov 2023 09:40:36 +0000 (10:40 +0100)]
vbox_snapshot_conf: Keep indent in snapshot XML
As mentioned in previous commit, VirtualBox has its own snapshot
XML which we parse, change and then format back. During this, we
ought to keep the indentation to produce better looking result
(especially when we want to compare the output in tests later on,
like we do in vboxsnapshotxmltest).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Michal Privoznik [Mon, 20 Nov 2023 03:49:53 +0000 (04:49 +0100)]
vbox_snapshot_conf: Parse XMLs without net access
When working with VirtualBox's snapshots, the snapshot XML is
firstly parsed, stored in memory (with some parts being stored as
verbatim XML snippets, strings), requested changes are made and
then this modified XML is formatted via
virVBoxSnapshotConfSaveVboxFile() which calls
xmlParseInNodeContext() to format those previously stored XML
snippets.
The first parse of whole VirtualBox snapshot file is done using
virXMLParse() (in virVBoxSnapshotConfLoadVboxFile()) and thus
with XML_PARSE_NONET specified.
But those ad-hoc parsings when formatting the XML back pass zero
flags mask: xmlParseInNodeContext(..., options = 0, ...);
This is potentially dangerous.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Andrea Bolognani [Thu, 16 Nov 2023 16:01:44 +0000 (17:01 +0100)]
kbase: More info on firmware change for existing VMs
The need to remove the <loader> and <nvram> elements in order
to make the firmware autoselection process kick in again is
not exactly intuitive, so document it explicitly.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Andrea Bolognani [Thu, 16 Nov 2023 18:12:34 +0000 (19:12 +0100)]
rpc: Pass GPG_TTY and TERM environment variables
gpg-agent can be used instead of ssh-agent to authenticate
against an SSH server, but in order to do so the GPG_TTY and
TERM environment variables need to be passed through.
For obvious reasons, we avoid doing that when no_tty=1 is found
in the connection URI.
Pavel Hrdina [Wed, 1 Nov 2023 13:01:32 +0000 (14:01 +0100)]
qemu_snapshot: fix reverting to inactive snapshot
When reverting to inactive snapshot updating the domain definition needs
to happen after the new overlays are created otherwise qemu-img will
correctly fail with error:
Trying to create an image with the same filename as the backing file
Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Pavel Hrdina [Wed, 1 Nov 2023 09:12:22 +0000 (10:12 +0100)]
qemu_snapshot: fix snapshot deletion that had multiple children
When we revert to non-leaf snapshot and create new branch or branches
the overlay in snapshot metadata is no longer usable as a disk source
for deletion of that snapshot. We need to use other places to figure out
the correct storage source.
Fixes: https://gitlab.com/libvirt/libvirt/-/issues/534 Signed-off-by: Pavel Hrdina <phrdina@redhat.com> Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Peter Krempa [Thu, 9 Nov 2023 14:20:38 +0000 (15:20 +0100)]
qemuxml2argvtest: Add complementary 'kvm/tcg' test cases for cpu-host-model*
CPU host model expansion depends on the CPU data from the capabilities
and can change based on emulation type. Add complementary tests to the
ones we already have to ensure full coverage.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Thu, 9 Nov 2023 14:15:39 +0000 (15:15 +0100)]
qemuxml2argvtest: Rename 'cpu-host-model' tests according to emulation type
The cpu-host-model.xml test case uses 'kvm' whereas the
fallback/nofallback cases use tcg in the definition. Rename them
accordingly so that the complement cases can be added later.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Peter Krempa [Wed, 8 Nov 2023 13:50:10 +0000 (14:50 +0100)]
tests: qemumigparamsdata: Drop deprecated fields
Migration compression parameters 'compress-level', 'compress-threads',
'decompress-threads' were deprecated by qemu. Drop them from the tests.
Note that the migration code automatically checks whether given
capability is supported by qemu and thus we don't need to add any
further code to prepare for the legacy compression to be dropped.
Signed-off-by: Peter Krempa <pkrempa@redhat.com> Reviewed-by: Ján Tomko <jtomko@redhat.com>
Laine Stump [Fri, 3 Nov 2023 23:40:32 +0000 (19:40 -0400)]
rpcgen: use proper operators when comparing types
flake8 (run on all python scripts as a part of the syntax checks)
version 6.1.0 (on macOS 14) issued many complaints like this on the
new rpcgen python scripts:
[...]libvirt/scripts/rpcgen/rpcgen/lexer.py:57:17: E721 do not compare types, for exact checks use `is` / `is not`, for instance checks use `isinstance()`
This patch changes all [type] == [type] to use "is" instead of "==",
and similarly to use "is not" instead of "!=".
(flake8 5.03, e.g. on Fedora 38, is just fine with using "==" and "!=",
but python on both likes "is" and "is not")
Fixes: commit v9.9.0-24-g8ec79e5e14 Fixes: commit v9.9.0-22-gca3f025011 Fixes: commit v9.9.0-21-g031efb691f Fixes: commit v9.9.0-20-g8c8b97685b Signed-off-by: Laine Stump <laine@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
It's already been dragged in by the -devel package, but since
we use the command line tool directly as part of our build
process it's more correct to explicitly depend on the runtime
package.
Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Tests are disabled so this combination never made any sense,
but with recent changes it has turned into a build failure.
Fixes: 8ce0decc372051d616018f57ae268e2f03082eec Reported-by: Cole Robinson <crobinso@redhat.com> Signed-off-by: Andrea Bolognani <abologna@redhat.com> Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
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