Commit Graph

6056 Commits

Author SHA1 Message Date
Peter Krempa
e2f1e2687f qemuhotplugtest: detach: Remove commands which are not issued
The 'human-monitor-command' equates to the 'drive-del' command issued by
the hotplug code on successful detach of a device. This means that it's
not issued for failed attempts and thus should not be added to the
expected list. Unfortunately our test monitor doesn't ensure that all
expected commands were consumed.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-23 15:57:36 +02:00
Peter Krempa
b8c02497b3 mock: qemuDomainGetUnplugTimeout: Decrease timeout
We always queue the DEVICE_DELETED events before successful return from
the command so that tests are reliable. This means we can decrease the
unplug timeout as it's guaranteed to be executed in correct order.

According to my testing it shaves off ~450ms of test run:

real	0m0.721s

vs.

real	0m0.259s

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-23 15:57:36 +02:00
Peter Krempa
f1ac096ea6 mock:qemuDomainGetUnplugTimeout: Remove unused attribute for '@vm'
'@vm' is used to use a different timeout for ppc64 guests.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-23 15:57:36 +02:00
Peter Krempa
6ed1219244 qemucapstest: Refresh data for qemu 5.0 on x86_64
Bump to v5.0.0-rc3-8-g3119154db0 and make sure that 'liburing' is picked
up by qemu.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-23 15:56:32 +02:00
Michal Privoznik
8589ecc69f networkxml2xmltest: Complete renaming of @actual
In 97a0aa2467 the @actual variable was renamed to @confactual.
However, the commit missed non-Linux case resulting in a broken
build.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-23 12:38:01 +02:00
Julio Faracco
7e5a40fd0f tests: Add tests for <lease/> to cover dnsmasq settings
New tests are required to cover some new XML syntax entry for
<lease/> option. This includes schema testing and other features
like unit attribute and lease value. This commit includes hostsfile
checks adding new files for each test case that is manipulating <host/>
tag.

Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-23 10:59:33 +02:00
Julio Faracco
97a0aa2467 conf: Add <lease/> option for <dhcp/> settings
If an user is trying to configure a dhcp neetwork settings, it is not
possible to change the leasetime of a range or a host entry. This is
available using dnsmasq extra options, but they are associated with
dhcp-range or dhcp-hosts fields. This patch implements a leasetime for
range and hosts tags. They can be defined under that settings:

    <dhcp>
      <range ...>
        <lease/>
      </range>
      <host ...>
        <lease/>
      </host>
    </dhcp>

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=913446

Signed-off-by: Julio Faracco <jcfaracco@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-23 10:59:23 +02:00
Jim Fehlig
bed3252536 tests: check conversion of passthrough hypervisor feature
Add a new test to check the 'mode' attribute of the passthrough element
and augment an existing, related test to check enablement of the
passthrough element only.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-21 09:22:14 -06:00
Marek Marczykowski-Górecki
34077c1b8b tests: check e820_host option handling
Signed-off-by: Marek Marczykowski-Górecki <marmarek@invisiblethingslab.com>
Reviewed-by: Jim Fehlig <jfehlig@suse.com>
2020-04-21 09:06:09 -06:00
Peter Krempa
a7db0b757d backup: Allow 'encryption' of backups and scratch images
Add the appropriate entries into the schema to allow encryption of the
backup or scratch image. Since we use blockdev internals for everything
no changes to the code are actually necessary.

https://bugzilla.redhat.com/show_bug.cgi?id=1811906

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-14 18:49:41 +02:00
Peter Krempa
524de6cc35 virstoragetest: testBackingParse: Use VIR_DOMAIN_DEF_FORMAT_SECURE when formatting xml
We want to format even the secure information in tests.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
2020-04-14 18:47:01 +02:00
Laine Stump
2d3cf60328 qemu: hook up pcie-root-port hotplug='off' option
If a pcie-root-port or pcie-downstream-port has hotplug='off' in its
<target> subelement, and if the qemu binary supports the hotplug=false
option, then it will be added to the commandline for the pcie
controller. This controller will then not allow any hotplug/unplug of
devices while the guest is running (and the hotplug capability won't
be advertised to the guest OS, so the guest OS also won't present
unplugging of PCI devices as an option).

  <controller type='pci' model='pcie-root-port'>
    <target hotplug='off'/>
  </controller>

For any PCI controllers other than pcie-downstream-port and
pcie-root-port, of for qemu binaries that don't support the hotplug
commandline option, an error will be logged during validation.

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-12 22:34:19 -04:00
Laine Stump
78f4d5e6f1 conf: new attribute "hotplug" for pci controllers
a <controller type='pci'...> element can now have a "hotplug"
attribute in the <target> subelement. This is intended to control
whether or not the slot(s) of the controller support
hotplugging/unplugging a device:

   <controller type='pci' model='pcie-root-port'>
     <target hotplug='off'/>
   </controller>

The default value of hotplug is "on".

Since support for configuring such an option is hypervisor-dependent
(and will vary among different types of PCI controllers even on a
single hypervisor), no validation is done in this patch - that
validation will be done in the patch that wires support for the
setting into the hypervisor.

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-12 22:32:30 -04:00
Laine Stump
cbd4ab4cc6 qemu: new capabilities flag pcie-root-port.hotplug
This caps flag is set when the qemu binary supports the option
"hotplug" for pcie-root-port, ioh3420 (Intel pcie-root-port) and
xio3130-downstream (Intel pcie-downstream-port). If it's available,
it's possible to disable hotplugging/unplugging devices on a
particular port by adding ",hotplug=off" to the qemu device
commandline. This option first appears in qemu-5.0.0.

Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-04-12 22:30:10 -04:00
Jim Fehlig
967f4eebdc xenconfig: Add support for max_event_channels
Add support in the domXML<->native config converter for max_event_channels.
The parser and formater functions for max_grant_frames were reworked to
also parse max_event_channels. In doing so the xenbus controller is added
earlier in the config parsing, requiring a small adjustment to one of the
existing tests. Include a new test for the event channel conversion.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-04-09 15:45:05 -06:00
Jim Fehlig
a93f55c53d libxl: Add support for max_event_channels
Add support for setting event_channels in libxl domain config object and
include a test to check that it is properly converted from XML to libxl
domain config.

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-04-09 15:45:05 -06:00
Jiri Denemark
5d6059f8ec cpu_map: Distinguish Cascadelake-Server from Skylake-Server
The signatures of these two CPU model differ only in stepping as both
report family 6 and model 85. Skylake-Server uses stepping 4 or less and
Cascadelake-Server uses stepping 5..7.

https://bugzilla.redhat.com/show_bug.cgi?id=1761678

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-08 17:52:50 +02:00
Jiri Denemark
3714779b15 cputest: Add data for Intel(R) Xeon(R) Gold 6130 CPU
Skylake-Server with family 6, model 85, stepping 4, which is currently
mis-detected as Cascadelake-Server CPU model.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-08 17:52:50 +02:00
Jiri Denemark
8605960389 cputest: Add data for Intel(R) Xeon(R) Platinum 9242 CPU
Cascadelake-Server with family 6, model 85, stepping 7.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-08 17:52:50 +02:00
Bjoern Walk
5a2f2310a0 qemu: command: support for virtio packed option
Pass the packed option on the QEMU command line of the capability for
packed virtqueues is detected and the parameter is set explicitly.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-04-08 16:26:04 +02:00
Bjoern Walk
979500e1c1 qemu: capabilities: add 'packed' capability
Add the capability for QEMU's packed virtqueues for virtio that supposedly have
better cache utilization and performance compared to the default split queues.

Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-04-08 16:26:03 +02:00
Bjoern Walk
763416e192 qemu: capabilities: update qemu-4.2 capabilities for s390x
Update s390x capabilities for QEMU 4.2 with the actual GA version for
QEMU and on the latest z15 machine.

This picks up the new blockdev capability, so we need to refresh a bunch
of test cases as well.

Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Acked-by: Christian Borntraeger <borntraeger@de.ibm.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-04-08 14:46:24 +02:00
Michal Privoznik
8b9488d929 conf: Move virDomainGenerateMachineName to hypervisor/
The virDomainGenerateMachineName() function doesn't belong in
src/conf/ really, because it has nothing to do with domain XML
parsing. It landed there because of lack of better place in the
past. But now that we have src/hypervisor/ the function should
live there. At the same time, the function name is changed to
match new location.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-04-07 15:26:19 +02:00
Michal Privoznik
34a59fb570 qemu: Drop two layers of nesting of memoryBackingDir
Initially introduced in v3.10.0-rc1~172.

When generating a path for memory-backend-file or -mem-path, qemu
driver will use the following pattern:

  $memoryBackingDir/libvirt/qemu/$id-$shortName

where $memoryBackingDir defaults to /var/lib/libvirt/qemu/ram but
can be overridden in qemu.conf. Anyway, the "/libvirt/qemu/" part
looks redundant, because it's already contained in the default,
or creates unnecessary nesting if overridden in qemu.conf.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
2020-04-07 15:26:17 +02:00
Michal Privoznik
f00f4ea7b1 tests: Fix virQEMUDriverConfigNew() calling with respect to @root
The virQEMUDriverConfigNew() accepts path to root directory for
embed mode as an argument. If the argument is not NULL it uses
the passed value as prefix for some internal paths (e.g.
cfg->libDir). If it is NULL though, it looks if the other
argument, @privileged is true or false and generates internal
paths accordingly. But when calling the function from the test
suite, instead of passing NULL for @root, an empty string is
passed. Fortunately, this doesn't create a problem because in
both problematic cases the generated paths are "fixed" to point
somewhere into build dir or the code which is tested doesn't
access them.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-04-07 15:26:10 +02:00
Christian Schoenebeck
89bbe9bb1e qemu: add support for 'multidevs' option
This option prevents misbehaviours on guest if a qemu 9pfs export
contains multiple devices, due to the potential file ID collisions
this otherwise may cause.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-06 13:55:27 +02:00
Christian Schoenebeck
c3a1856890 conf: add 'multidevs' option
Introduce new 'multidevs' option for filesystem.

  <filesystem type='mount' accessmode='mapped' multidevs='remap'>
    <source dir='/path'/>
    <target dir='mount_tag'>
  </filesystem>

This option prevents misbehaviours on guest if a qemu 9pfs export
contains multiple devices, due to the potential file ID collisions
this otherwise may cause.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-06 13:55:27 +02:00
Christian Schoenebeck
8fe6e82d1c qemu: capabilities: add QEMU_CAPS_FSDEV_MULTIDEVS
The QEMU 9pfs 'multidevs' option exists since QEMU 4.2. Probe QEMU's
command line set though to check whether this option is really
available, and if yes enable this new QEMU_CAPS_FSDEV_MULTIDEVS
capability on libvirt side.

Signed-off-by: Christian Schoenebeck <qemu_oss@crudebyte.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-06 13:55:12 +02:00
Daniel Henrique Barboza
b8f1f037ed qemu: move qemuDomainDeviceDefValidateDisk() to qemu_validate.c
This function will remain public due to its usage in qemublocktest.c
even after moving qemuDomainDeviceDefValidate(). The position of its
header in qemu_validate.h is no accident.

Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2020-04-03 16:25:30 +02:00
Peter Krempa
a743583e4f qemu: capabilities: Update qemu-5.0.0 capabilities for x86_64 to rc1
Now that v5.0.0-rc1 was tagged, update the capabilities to make sure
that everything works as expected.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-03 09:53:49 +02:00
Peter Krempa
958ac278cd qemumonitorjsontest: AddNetdev: Use real variant
QEMU now formalized the arguments of netdev-add in the schema, so we
must use a real type to pass the schema validation once the schema is
updated.

The 'user' variant doesn't have any other mandatory fields.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-03 09:36:20 +02:00
Peter Krempa
5a13eb1655 qemuMonitorTestProcessCommandDefaultValidate: Output validator output to stderr
Trying to squeeze the validator output into the monitor reply message
doesn't make sense and doesn't work well as it's not well formed JSON:

54) qemuMonitorJSONAddNetdev                                          ... libvirt:  error : internal error: cannot parse json { "error":  { "desc": "failed to validate arguments of 'netdev_add' against QAPI schema: {
   ERROR: variant 'test' for discriminator 'type' not found
",    "class": "UnexpectedCommand" } }: lexical error: invalid character inside string.
          ev_add' against QAPI schema: {    ERROR: variant 'test' for
                     (right here) ------^
FAILED

Output it to stderr if requested and just note that schema validation
failed in the error message:

54) qemuMonitorJSONAddNetdev                                          ...
failed to validate arguments of 'netdev_add' against QAPI schema
args:
{
  "id": "net0",
  "type": "test"
}

validator output:
 {
   ERROR: variant 'test' for discriminator 'type' not found

libvirt: QEMU Driver error : internal error: unable to execute QEMU command 'netdev_add': failed to validate arguments of 'netdev_add' against QAPI schema (to see debug output use VIR_TEST_DEBUG=2)
FAILED

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-03 09:36:20 +02:00
Peter Krempa
203e802d88 qemumonitorjsontest: Space out test name concatenation
The test name is concatenated from a prefix with the test name, but no
space was added so the output looked wrong.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-04-03 09:36:20 +02:00
Ján Tomko
29fc9e96a9 qemu: use QEMU_CAPS_STORAGE_WERROR for disk-error attributes
When moving the formatting of this attributes from -drive
to -device, the QEMU_CAPS_USB_STORAGE_WERROR capability
was used, because usb-storage was the last device to gain
this capability.

However this lead to the assumption that QEMU binaries
without the usb-storage device do not support this,
leading to breakage on s390x with blockdev.

Fixes: bb4f3543bb
https://bugzilla.redhat.com/show_bug.cgi?id=1819250

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-04-01 15:45:48 +02:00
Ján Tomko
47e84b06ec qemu: add QEMU_CAPS_STORAGE_WERROR
Detect the werror property on SCSI and virtio disks.
But clear it if the QEMU supports usb-storage device without it
also supporting this option for usb-storage.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-04-01 15:45:48 +02:00
Ján Tomko
248d205171 tests: qemu: add disk-error-policy tests for s390x
To demonstrate the move of these attributes from -drive to -device.

Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
2020-04-01 15:45:47 +02:00
Peter Krempa
544ef82d05 virStorageSourceParseBackingURI: Preserve query string of URI for http(s)
For http/https URIs we need to preserve the query part as it may be
important to refer to the image.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-30 16:30:34 +02:00
Peter Krempa
216860dd8b qemuBlockStorageSourceGetURI: Pass through query component
If the storage source has the query part set, format it in the output.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-30 16:30:34 +02:00
Peter Krempa
5636812472 conf: Add support for http(s) query strings
Add a new attribute for holding the query part for http(s) disks.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-30 16:30:34 +02:00
Peter Krempa
b9166baebe virStorageSourceNetCookieValidate: Accept quoted cookie value
The quotes are forbidden only inside the value, but the value itself may
be enclosed in quotes. Fix the RNG schema and validator and add a test
case.

https://bugzilla.redhat.com/show_bug.cgi?id=1804750

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-27 15:46:52 +01:00
Peter Krempa
c34ec56aba qemuxml2xmltest: Wire up 'disk-network-http' case
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-27 15:46:52 +01:00
Jiri Denemark
17cdefe5f1 cpu_map: Don't use new noTSX models for host-model CPUs
Host-model CPU definitions (and domain capabilities) will use the
original CPU models (without noTSX in their name) and explicitly disable
hle and rtm features. This way domains with host-model CPUs will be
migratable even to older versions of libvirt which do not support the
noTSX model variants.

The new models will be advertised in host capabilities and they may
be used explicitly with custom CPUs.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Tested-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
2020-03-25 22:27:39 +01:00
Christian Ehrhardt
dd17a4eba8 cpu_map: Add more -noTSX x86 CPU models
One of the mitigation methods for TAA[1] is to disable TSX
support on the host system.  Linux added a mechanism to disable
TSX globally through the kernel command line, and many Linux
distributions now default to tsx=off.  This makes existing CPU
models that have HLE and RTM enabled not usable anymore.

Add new versions of all CPU models that have the HLE and RTM
features enabled, that can be used when TSX is disabled in the
host system.

On systems disabling the features without those types defined
in cpu-maps users end up without modern CPU types in the list
of usable CPUs to use in the likes of virsh domcapabilities
or tools higher in the stack like virt-manager.

This adds:
-Cascadelake-Server-noTSX
-Icelake-Client-noTSX
-Icelake-Server-noTSX
-Skylake-Server-noTSX-IBRS
-Skylake-Client-noTSX-IBRS

Introduced in QEMU by commit v4.2.0-rc2-3-g9ab2237f19 (function)
                  and commit v4.2.0-rc2-4-g02fa60d101 (names)

References:

    [1] TAA, TSX asynchronous Abort:
        https://software.intel.com/security-software-guidance/insights/deep-dive-intel-transactional-synchronization-extensions-intel-tsx-asynchronous-abort
        https://www.kernel.org/doc/html/latest/admin-guide/hw-vuln/tsx_async_abort.html

Fixes: https://bugs.launchpad.net/ubuntu/+source/libvirt/+bug/1853200

Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Message-Id: <20200310104806.2723-2-christian.ehrhardt@canonical.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
2020-03-25 22:27:39 +01:00
Peter Krempa
c3a7f46fe3 qemuAgentGetFSInfo: expose 'report_unsupported' argument
Use qemuAgentCommandFull so that callers of qemuAgentGetFSInfo can
suppress error reports if the function is not supported by the guest
agent.

Since this patch removes the last use of
qemuAgentErrorCommandUnsupported the whole function is deleted as well.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-25 13:13:18 +01:00
Peter Krempa
b126477685 qemuAgentGetTimezone: expose 'report_unsupported' argument
Use qemuAgentCommandFull so that callers of qemuAgentGetTimezone can
suppress error reports if the function is not supported by the guest
agent.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-25 13:13:18 +01:00
Peter Krempa
d8ac171718 qemuAgentGetOSInfo: expose 'report_unsupported' argument
Use qemuAgentCommandFull so that callers of qemuAgentGetOSInfo can
suppress error reports if the function is not supported by the guest
agent.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-25 13:13:18 +01:00
Peter Krempa
de1d822691 qemuAgentGetUsers: expose 'report_unsupported' argument
Use qemuAgentCommandFull so that callers of qemuAgentGetUsers can
suppress error reports if the function is not supported by the guest
agent.

Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
2020-03-25 13:13:18 +01:00
Marc-André Lureau
be00118d5d util: keep the pidfile locked
Unfortunately, advisory record locking lose the lock if any fd refering
to the file is closed. There doesn't seem to be a way to preserve the
lock atomically. We could eventually retake the lock if low pidfilefd
is required.

This fixes processes being leaked, as they are not killed in
virPidFileForceCleanupPath() if the lock can be taken. Here also, we may
consider this is not good enough, as a process may leak by simply
closing the pidfilefd.

Fixes commit d146105f1e ("virCommand:
Actually acquire pidfile instead of just writing it")

Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
2020-03-25 09:04:49 +01:00
Michal Privoznik
d146105f1e virCommand: Actually acquire pidfile instead of just writing it
Our virCommand module allows us to set a pidfile for commands we
want to spawn. The caller constructs the string of pidfile path
and then uses virCommandSetPidFile() to tell the module to write
the pidfile once the command is ran. This usually works, but has
two flaws:

1) the child process does not hold the pidfile open & locked.
Therefore, the caller (or anybody else) can't use our fancy
virPidFileForceCleanupPath() function to kill the command
afterwards. Also, for everybody else on the system it's
needlessly harder to check if the pid from the pidfile is still
alive or not.

2) if the caller ever makes a mistake and passes the same pidfile
path for two different commands, the start of the second command
will overwrite the pidfile even though the first command might
still be running.

NOTE that this temporarily renders some command spawning
unusable, specifically those code patterns where both
virCommandSetPidFile() is used together with instructing spawned
command to acquire pidfile itself. Fortunately, there is only one
occurrence of such pattern and it is in
qemuProcessStartManagedPRDaemon(). This is fixed in next commit.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
2020-03-24 15:44:23 +01:00
Michal Privoznik
1ac79d29eb commandtest: Fix test28 error detection
As a part of c799d150d5 I've introduced a test case that
tests whether passing error object between processes works. The
test spawns a child which reports a system error, parent process
then reads the error and compares with expected output. Problem
with this approach is that error message contains stringified
errno which is not portable. FreeBSD has generally different
messages than Linux. Therefore, use g_strerror() to do the errno
to string translation for us.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
2020-03-24 14:33:29 +01:00