Commit Graph

33365 Commits

Author SHA1 Message Date
Peter Krempa
b872422a9c tests: qemumonitorjson: Replace use of virReportError
Use VIR_TEST_VERBOSE instead. This fixes the following syntax check
problem:

tests/qemumonitorjsontest.c:1409:        virReportError(VIR_ERR_INTERNAL_ERROR, "arr should have been cleared");

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
2019-06-12 09:19:25 +02:00
Ilias Stamatis
49df9205f2 test_driver: implement virDomainSaveImageGetXMLDesc
Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-06-12 08:52:46 +02:00
Ilias Stamatis
4d39a99142 test_driver: implement virDomainSaveImageDefineXML
Updates the existing image stored in @path, in case @dxml contains valid
XML supported by the fake host.

Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-06-12 08:52:46 +02:00
Ilias Stamatis
d6650b2620 test_driver: extract image loading code into a separate function
Extracting the code logic for opening and parsing a test image from
testDomainRestoreFlags into a separate function, allows us to reuse this
code in other functions such as testDomainSaveImageGetXMLDesc.

Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-06-12 08:52:46 +02:00
Ilias Stamatis
1dfa29f806 test_driver: extract image saving code into a separate function
Extracting the code logic for writing a test image to disk from
testDomainSaveFlags into a separate function, allows us to reuse this
code in other functions such as testDomainSaveImageDefineXML.

Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-06-12 08:52:46 +02:00
Eric Blake
fbb5271c78 backup: Add new parameters to qemu monitor nbd-server-add
The upcoming virDomainBackup() API needs to take advantage of the
ability to expose a bitmap as part of nbd-server-add for a pull-mode
backup (this is the recently-added QEMU_CAPS_NBD_BITMAP capability).

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-06-11 21:47:13 -05:00
Eric Blake
ad1c17c8d5 backup: Add new qemu monitor bitmap
The upcoming virDomainBackup() API needs to take advantage of various
qcow2 bitmap manipulations as the basis to virDomainCheckpoints and
incremental backups.  Add four functions to expose
block-dirty-bitmap-{add,enable,disable,merge} (this is the
recently-added QEMU_CAPS_BITMAP_MERGE capability).

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-06-11 21:47:10 -05:00
Eric Blake
6abda7a445 backup: Add two new qemu capabilities
Add two capabilities for testing features required for the upcoming
virDomainBackupBegin: use block-dirty-bitmap-merge as the generic
witness of bitmap support needed for checkpoints (since all of the
bitmap management functionalities were finalized in the same qemu 4.0
release), and the bitmap parameter to nbd-server-add for pull-mode
backup support.  Even though both capabilities are likely to be
present or absent together (that is, it is unlikely to encounter a
qemu that backports only one of the two), it still makes sense to keep
two capabilities as the two uses are orthogonal (full backups don't
require checkpoints, push mode backups don't require NBD bitmap
support, and checkpoints can be used for more than just incremental
backups).

Existing code is not affected by the new capabilities.

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-06-11 21:42:57 -05:00
Eric Blake
73bf0a9c28 backup: Prepare for Unix sockets in QMP nbd-server-start
Migration always uses a TCP socket for NBD servers, because we don't
support same-host migration. But upcoming pull-mode incremental backup
needs to also support a Unix socket, for retrieving the backup from
the same host. Support this by plumbing virStorageNetHostDef through
the monitor calls, since that is a nice reusable struct that can track
both TCP and Unix sockets.

Update qemumonitorjsontest to verify both forms of the QMP command.

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-06-11 21:41:42 -05:00
Eric Blake
1ddc7e0363 qemumonitorjsontest: Simplify returns
Time to remove the cleanup labels rendered useless in the previous
patch.  There are still plenty of other tests that could be further
simplified, but I've already spent enough time in this file for now.

Signed-off-by: Eric Blake <eblake@redhat.com>
2019-06-11 21:35:39 -05:00
Eric Blake
4b658bfe4b qemumonitorjsontest: Validate more commands against schema
The DO_TEST() macro in qemumonitorjsontest.c was not passing the
schema through, which meant that we were not validating any of those
tests for correct usage according to the schema.

In the process of mechanically altering tests to pass the schema
through, use VIR_AUTOPTR on all of the affected test instances. The
next patch will do some further cleanups that it exposes.

Tested by using this hack, where the test mistakenly passed pre-patch,
but correctly diagnosed the garbage post-patch:

| diff --git i/src/qemu/qemu_monitor_json.c w/src/qemu/qemu_monitor_json.c
| index 53a7de8b77..86d8450814 100644
| --- i/src/qemu/qemu_monitor_json.c
| +++ w/src/qemu/qemu_monitor_json.c
| @@ -1532,7 +1532,8 @@ qemuMonitorJSONGetStatus(qemuMonitorPtr mon,
|      if (reason)
|          *reason = VIR_DOMAIN_PAUSED_UNKNOWN;
|
| -    if (!(cmd = qemuMonitorJSONMakeCommand("query-status", NULL)))
| +    if (!(cmd = qemuMonitorJSONMakeCommand("query-status",
| +                                           "s:garbage", "foo", NULL)))
|          return -1;
|
|      if (qemuMonitorJSONCommand(mon, cmd, &reply) < 0)

Suggested-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-06-11 21:35:24 -05:00
Eric Blake
09083437ff qemumonitorjsontest: Use VIR_AUTOPTR support
Simplify the GEN_TEST_FUNC() and target of the DO_TEST_SIMPLE() macros
by using autoptr support.

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-06-11 21:30:12 -05:00
Eric Blake
2ea60b6f7e qemumonitortestutils: Add VIR_AUTOPTR support
Upcoming tests are going to use VIR_AUTOPTR to simplify test cleanup.

Signed-off-by: Eric Blake <eblake@redhat.com>
Acked-by: Peter Krempa <pkrempa@redhat.com>
2019-06-11 20:53:50 -05:00
Johannes Holmberg
1134fd6289 virt-xml-validate: Allow input to be read from stdin
Signed-off-by: Johannes Holmberg <johannes.holmberg@dataductus.se>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
2019-06-10 15:39:16 +02:00
Peter Krempa
143c2de113 qemu: snapshot: Remove unnecessary 'do_transaction' logic in qemuDomainSnapshotCreateDiskActive
Now that we never get to the actual snapshot code if there's nothing to
do we can remove the variable and surrounding logic.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:09 +02:00
Peter Krempa
0491128f2a qemu: snapshot: Return early if there's nothing to snapshot
Skip actual snapshot creation code if we have 0 disks to snapshot.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:09 +02:00
Peter Krempa
0325d42668 qemu: snapshot: Unify 'cleanup' and 'error' in qemuDomainSnapshotCreateDiskActive
All cases taking the 'cleanup' path can take the original 'error' path.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:09 +02:00
Peter Krempa
46da762669 qemu: snapshot: Don't overload 'ret' in qemuDomainSnapshotCreateDiskActive
Introduce 'rc' for collecting state from monitor commands so that we can
initialize 'ret' to -1. This also fixes few cases which could return 0
from the function despite an error condition.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:09 +02:00
Peter Krempa
a7087c929e qemu: snapshot: Move all cleanup of snapshot disk data to qemuDomainSnapshotDiskDataFree
qemuDomainSnapshotDiskDataFree also removes the resources associated
with the disk data. Move the unlinking of the just-created file so that
we can unify the cleanup paths.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:09 +02:00
Peter Krempa
acda184236 qemu: Rename qemuDomainSnapshotDiskDataFree to qemuDomainSnapshotDiskDataCleanup
In commit cbb4d229de I named the function with 'free' suffix, but at
that time it already did some non-freeing tasks. Rename it to make it
obvious that it's not just memory managemet.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
f34397e51c qemu: snapshot: Densely pack data in qemuDomainSnapshotDiskDataCollect
The function skips disks which are not selected for snapshot. Rather
than creating a sparse array and check whether the given field is filled
compress the entries.

Note that this does not allocate a smaller array, but the memory
allocation is short-lived.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
9678503088 qemu: snapshot: Always save config XML after qemuDomainSnapshotCreateDiskActive
If there's an offline config definition save it unconditionally even if
it was not modified.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
999e450c26 qemu: snapshot: Always save status and config after qemuDomainSnapshotCreateDiskActive
The error path is unlikely thus saving the status XML even if we didn't
modify it does not add much burden.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
7b8c319d9c qemu: snapshot: Remove unused cleanup section in qemuDomainSnapshotCreateSingleDiskActive
After getting rid of pre-transaction qemu support the cleanup section is
unused.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
7d67319cfb qemu: Use VIR_AUTO* in qemuDomainSnapshotCreateActiveExternal
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
77f71c45ad qemu: Use virErrorPreserveLast in qemuDomainSnapshotCreateDiskActive
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
0f9a2a665b qemu: Use VIR_AUTOPTR in qemuDomainSnapshotCreateDiskActive
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
ef6b88deef qemu: snapshot: Pass 'cfg' to external snapshot functions
The caller has it so there's no point in getting it again.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-10 14:01:08 +02:00
Peter Krempa
6f15c82fda tests: qemuhotplug: Use schema testing with qemuMonitorTestNewFromFileFull
Pass in the schema since it works with the 'file' test now.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-06-07 16:18:46 +02:00
Peter Krempa
1a77e0032b tests: Allow QMP schema testing in qemuMonitorTestNewFromFileFull
Pass in the schema data from the caller if QMP schema testing is
desired.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-06-07 16:18:45 +02:00
Peter Krempa
56c2f2b45b tests: qemu: Add QMP schema checking in qemuMonitorTestProcessCommandVerbatim
In case when we are testing a QMP command we can try to schema check it
so that we catch inconsistencies.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-06-07 16:18:45 +02:00
Peter Krempa
e4013f9ff7 tests: Refactor cleanup in qemuMonitorTestProcessCommandVerbatim
Use VIR_AUTOFREE and get rid of the cleanup section.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
2019-06-07 16:18:45 +02:00
Andrea Bolognani
18006c696d gitdm: Add gitdm configuration
This configuration can be used by gitdm to generate reports about
libvirt development.

The goal I was working with was being able to generate a report
for every single libvirt release and having zero "email address
as company" entries; picking different commit ranges might result
in some contributions not being accounted for.

I had to make some judgement calls when the situation was not
entirely clear-cut: when in doubt, and not finding any obvious
signs of the opposite being true, I mostly ended up dumping
people in the "unaffiliated contributions" bin. If I got it
wrong, and companies want to get recognition for their sponsored
contributions to libvirt, they can send patches.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-07 13:18:14 +02:00
Andrea Bolognani
c6edbc148e mailmap: Remove some duplicates
Fabiano Fidencio was working for Red Hat when he contributed to
libvirt, Shi Lei's non-company email address contains the company
name so it's fair to assume contributions using it were made on
company time, and Adrian Brzezinski's personal email was used
for the S-o-b while the git authorship information clearly pointed
at the company being involved.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-07 13:18:08 +02:00
Ilias Stamatis
8ad2f8cc43 test_driver: implement virDomainSendKey
Validate @keycodes before successfully returning. Since this is test
driver, @holdtime is being unused here.

Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-06-07 12:32:48 +02:00
Andrea Bolognani
a84922c09e qemu: Fix NULL pointer access in qemuProcessInitCpuAffinity()
Commit 2f2254c7f4 attempted to fix a memory leak by ensuring
cpumapToSet is always a freshly allocated bitmap, but regrettably
introduced a NULL pointer access while doing so, because it called
virBitmapCopy() without allocating the destination bitmap first.

Solve the issue by using virBitmapNewCopy() instead.

Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
2019-06-06 16:50:11 +02:00
Peter Krempa
01628f4b44 virsh: undefine: Clarify that --delete-storage-volume-snapshots causes failures
The flag causes undefine to fail if trying to remove a non-RBD disk. Add
a warning about that.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
ACKed-by: Eric Blake <eblake@redhat.com>
2019-06-06 10:26:37 +02:00
Peter Krempa
86608f787e virsh: undefine: Rename --delete-snapshots to --delete-storage-volume-snapshots
The old flag name confused some users into thinking it's the correct way
to undefine a VM with libvirt (not storage volume) snapshots.

The correct flag in that case is way less obvious: --snapshots-metadata.

Rename the flag (by adding an alias) to something which will promote
looking up the actual purpose of the flag.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
ACKed-by: Eric Blake <eblake@redhat.com>
2019-06-06 10:26:37 +02:00
Peter Krempa
b739913827 virsh: undefine: Clarify help string for --snapshots-metadata
Reword the end of the help string to make it more obvious that the VM
must be inactive.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Fabiano Fidêncio <fidencio@redhat.com>
ACKed-by: Eric Blake <eblake@redhat.com>
2019-06-06 10:26:37 +02:00
Jiri Denemark
4d21d4acf2 cpu_conf: Fix XPath for parsing TSC frequency
Due to this bug the following command would fail on any host where TSC
frequency can be probed:

    $ virsh capabilities | virsh cpu-baseline /dev/stdin
    error: unsupported configuration: Invalid TSC frequency

https://bugzilla.redhat.com/show_bug.cgi?id=1641702

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-06 09:40:40 +02:00
Michal Privoznik
a95b67bec3 virDomainObjListAddLocked: Drop useless @cleanup label
It's a premature optimization. It's perfectly acceptable for
'error' label to deal with @vm == NULL case.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
2019-06-05 11:01:12 +02:00
Erik Skultety
08ad83eee1 tests: Fix parentheses order in an assignment-comparison conditional
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1717090

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2019-06-04 20:56:58 +02:00
Andrea Bolognani
de563ebcf9 qemu: Drop cleanup label from qemuProcessInitCpuAffinity()
We're using VIR_AUTOPTR() for everything now, plus the
cleanup section was not doing anything useful anyway.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-04 15:54:04 +02:00
Andrea Bolognani
2f2254c7f4 qemu: Fix leak in qemuProcessInitCpuAffinity()
In two out of three scenarios we are cleaning up properly after
ourselves, but commit 5f2212c062 has changed the remaining one
in a way that caused it to start leaking cpumapToSet.

Refactor the logic so that cpumapToSet is always a freshly
allocated bitmap that gets cleaned up automatically thanks to
VIR_AUTOPTR(); this also allows us to remove the hostcpumap
variable.

Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-04 15:53:51 +02:00
Andrea Bolognani
b34fb1fb6f util: Propagate numad failures correctly
Right now, if numad fails, we raise an error but return an
empty string to the caller instead of a NULL pointer, which
means processing will continue and the user will see

  # virsh start guest
  error: Failed to start domain guest
  error: invalid argument: Failed to parse bitmap ''

instead of a more reasonable

  # virsh start guest
  error: Failed to start domain guest
  error: operation failed: Failed to query numad for the advisory nodeset

Make sure the user gets a better error message.

https://bugzilla.redhat.com/show_bug.cgi?id=1716387

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-04 10:13:07 +02:00
Andrea Bolognani
5f2212c062 qemu: Fix qemuProcessInitCpuAffinity()
Ever since the feature was introduced with commit 0f8e7ae33a,
it has contained a logic error in that it attempted to use a NUMA
node map where a CPU map was expected.

Because of that, guests using <numatune> might fail to start:

  # virsh start guest
  error: Failed to start domain guest
  error: cannot set CPU affinity on process 40055: Invalid argument

This was particularly easy to trigger on POWER 8 machines, where
secondary threads always show up as offline in the host: having

  <numatune>
    <memory mode='strict' placement='static' nodeset='1'/>
  </numatune>

in the guest configuration, for example, would result in libvirt
trying to set the process affinity so that it would prefer
running on CPU 1, but since that's a secondary thread and thus
shows up as offline, the operation would fail, and so would
starting the guest.

Use the newly introduced virNumaNodesetToCPUset() to convert the
NUMA node map to a CPU map, which in the example above would be
48,56,64,72,80,88 - a valid input for virProcessSetAffinity().

https://bugzilla.redhat.com/show_bug.cgi?id=1703661

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-04 09:29:35 +02:00
Andrea Bolognani
2d2b26f96f util: Introduce virNumaNodesetToCPUset()
This helper converts a set of NUMA node to the set of CPUs
they contain.

Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-04 09:29:35 +02:00
Andrea Bolognani
1b2ac8010c util: Introduce virBitmapUnion()
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2019-06-04 09:29:35 +02:00
Ilias Stamatis
eee8427a1c virDomainSendKey: validate codeset argument
This argument wasn't validated anywhere, neither in the generic
implementation nor in the individual drivers. As a result a call to this
function with a large enough codeset value prior to this change causes
libvirtd to crash.

This happens because all drivers call virKeycodeValueTranslate which
uses codeset as an index to the virKeymapValues array, causing an
out-of-bounds error.

Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-06-04 08:31:14 +02:00
Ilias Stamatis
cd3aebe9f2 test_driver: implement virDomainGetHostname
Always return "domain_name" + "host".

Signed-off-by: Ilias Stamatis <stamatis.iliass@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2019-06-04 08:15:04 +02:00