Commit Graph

21621 Commits

Author SHA1 Message Date
Jiri Denemark
b7a948be01 qemu: Pass async job to qemuProcessInit
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-02-19 15:41:57 +01:00
Jiri Denemark
bf657dffb8 qemu: End nested jobs properly
Ending a nested job is no different from ending any other (non-async)
job, after all the code in qemuDomainBeginJobInternal does not handle
them differently either. Thus we should call qemuDomainObjEndJob to stop
nested jobs.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-02-19 15:41:57 +01:00
Jiri Denemark
17c4312c63 qemu: Export qemuDomainObjBeginNestedJob
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-02-19 15:41:57 +01:00
Peter Krempa
773f3bd3cc virsh: cpupin: Extract getter code into a separate function 2016-02-19 15:24:54 +01:00
Peter Krempa
783584b52b qemu: qemuDomainGetStatsVcpu: Fix output for possible sparse vCPU settings
qemuDomainHelperGetVcpus would correctly return an array of
virVcpuInfoPtr structs for online vcpus even for sparse topologies, but
the loop that fills the returned typed parameters would number the vcpus
incorrectly. Fortunately sparse topologies aren't supported yet.
2016-02-19 15:23:54 +01:00
Peter Krempa
9958422d10 qemu: vcpupin: Always set affinity even when cgroups are supported
VM startup and CPU hotplug always set the affinity regardless of cgroups
support. Use the same approach for the pinning API.
2016-02-19 15:23:54 +01:00
Peter Krempa
471741309d qemu: vcpupin: Don't overwrite errors from functions setting pinning
Both errors from the cgroups code and from the affinity code would be
overwritten by the API. Report the more specific error.
2016-02-19 15:23:54 +01:00
Peter Krempa
9268b9ad48 util: Use virBitmapIsBitSet in freebsd impl of virProcessSetAffinity
Use the helper that does not return errors to fix spuriously looking
dead return of -1.
2016-02-19 15:23:54 +01:00
Peter Krempa
a7bc9841a4 virsh: cmdVcpuPin: Simplify handling of API flags
Rather than setting flags to -1 if none were specified, move the logic
to use the old API to the place where we need to decide. It simplifies
the logic a bit.
2016-02-19 15:13:21 +01:00
Andrea Bolognani
b6c40bd5e1 test: qemuxml2argv: Drop QEMU_CAPS_DEVICE uses
Since commit 51045df01b, the QEMU_CAPS_DEVICE capability is enabled
automatically and shouldn't be passed as an argument to DO_TEST();
however, commit 998a936c4c accidentally introduced few such uses.
2016-02-19 14:10:44 +01:00
Erik Skultety
e9e8565593 admin: Fix memory leak in remoteAdminConnectClose
When virt-admin is run with valgrind, this kind of output can be obtained:

HEAP SUMMARY:
  in use at exit: 134,589 bytes in 1,031 blocks
  total heap usage: 2,667 allocs, 1,636 frees, 496,755 bytes allocated

88 bytes in 1 blocks are definitely lost in loss record 82 of 128
 at 0x4C2A9C7: calloc (in /usr/lib64/valgrind/vgpreload_memcheck-amd64-linux.so)
 by 0x52F6D1F: virAllocVar (viralloc.c:560)
 by 0x5350268: virObjectNew (virobject.c:193)
 by 0x53503E0: virObjectLockableNew (virobject.c:219)
 by 0x4E3BBCB: virAdmConnectNew (datatypes.c:832)
 by 0x4E38495: virAdmConnectOpen (libvirt-admin.c:209)
 by 0x10C541: vshAdmConnect (virt-admin.c:107)
 by 0x10C7B2: vshAdmReconnect (virt-admin.c:163)
 by 0x10CC7C: cmdConnect (virt-admin.c:298)
 by 0x110838: vshCommandRun (vsh.c:1224)
 by 0x10DFD8: main (virt-admin.c:862)

 LEAK SUMMARY:
    definitely lost: 88 bytes in 1 blocks
    indirectly lost: 0 bytes in 0 blocks
    possibly lost: 0 bytes in 0 blocks
    still reachable: 134,501 bytes in 1,030 blocks
    suppressed: 0 bytes in 0 blocks

This is because virNetClientSetCloseCallback was being reinitialized
incorrectly. By resetting the callbacks in a proper way, the leak is fixed.
2016-02-19 08:21:18 +01:00
Matthias Bolte
647ac97ab6 esx: Avoid using vSphere SessionIsActive function
A login session with the vSphere API might expire after some idle time.
The esxVI_EnsureSession function uses the SessionIsActive function to
check if the current session has expired and a relogin needs to be done.

But the SessionIsActive function needs the Sessions.ValidateSession
privilege that is considered as an admin level privilege.

Only vCenter actually provides the SessionIsActive function. This results
in requiring an admin level privilege even for read-only operations on
a vCenter server.

ESX and VMware Server don't provide the SessionIsActive function and
the code already works around that. Use the same workaround for vCenter
again.

This basically reverts commit 5699034b65.
2016-02-18 19:28:35 +01:00
Ján Tomko
55e6d8cd9e Error out on missing machine type in machine configs
Commit f1a89a8 allowed parsing configs from /etc/libvirt
without validating the emulator capabilities.

Check for the presence of os->type.machine even if the
VIR_DOMAIN_DEF_PARSE_SKIP_OSTYPE_CHECKS flag is set,
otherwise the daemon can crash on carelessly crafted input
in the config directory.

https://bugzilla.redhat.com/show_bug.cgi?id=1267256
2016-02-18 16:19:39 +01:00
Ján Tomko
b4c6fa4418 vsh: use virBufferTrim in vshOutputLogFile
Use virBufferTrim to strip the extra newline at the end
of the message instead of open-coding it after the buffer's
string is formatted.
2016-02-18 16:18:22 +01:00
John Ferlan
c7f0069e8b qemu: Introduce qemuBuildMonitorCommandLine
Add new function to manage adding the '-mon' or '-monitor' options to
the command line removing that task from the mainline qemuBuildCommandLine.

Also adjusted qemuBuildChrChardevStr and qemuBuildChrArgStr to use
const virDomainChrSourceDef *def rather than virDomainChrSourceDefPtr def.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
8204234040 qemu: Introduce qemuBuildSgaCommandLine
Add new function to manage adding the '-device sga' to the command
line removing that task from the mainline qemuBuildCommandLine

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
6c56a71c9f qemu: Introduce qemuBuildSmbiosCommandLine
Add new function to manage adding the '-smbios' options to the command
line removing that task from the mainline qemuBuildCommandLine

Also while I was looking at it, move the uuid processing closer to usage.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
b827eddae0 qemu: Introduce qemuBuildNumaCommandLine
Add new function to manage adding the '-numa' options to the command
line removing that task from the mainline qemuBuildCommandLine

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
70681e3502 qemu: Introduce qemuBuildIOThreadCommandLine
Add new function to manage adding the IOThread '-object' to the command
line removing that task from the mainline qemuBuildCommandLine

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
e0dd78c9b2 qemu: Rename qemuBuildSmpArgStr to qemuBuildSmpCommandLine
Rename function and move code in from qemuBuildCommandLine to
keep smp related code together. Also make a few style changes
for long lines, return value change, and 2 spaces between functions.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
aa076fe8e4 qemu: Introduce qemuBuildMemCommandLine
Add new function to manage adding the '-m' memory options to the command
line removing that task from the mainline qemuBuildCommandLine

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
d238b51f00 qemu: Rename qemuBuildCpuArgStr to qemuBuildCpuCommandLine
Rename function and move code from mainline qemuBuildCommandLine to
keep alike code together.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
e3b964bc81 qemu: Rename qemuBuildMachineArgStr
Rename to qemuBuildMachineCommandLine to fit current (and future)
helper naming conventions.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
John Ferlan
470129a43f qemu: Make basic upfront checks before create command
Create qemuBuildCommandLineValidate to make some checks before trying
to build the command. This will move some logic from much later to much
earlier - we shouldn't be adjusting any data so that shouldn't matter.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-18 07:03:30 -05:00
Bjoern Walk
65c4c7d850 qemu: cgroup: fix cgroup permission logic
Fix logic error introduced in commit d6c91b3c which essentially broke
starting any domain.

Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
2016-02-18 10:32:46 +01:00
Peter Krempa
3ad5186ed3 virsh: Remove <backingStore> when changing cdrom media source
Since the code is changing the source image path by modifying the
existing XML snippet the <backingStore> stays in place.

As <backingStore> is relevant to the <source> part of the image, the
update of that part makes the element invalid.

CD/floppy images usually don't have a backing chain and the element is
currently ignored though but it might start being used in the future so
let's start behaving correctly.

Drop the <backingStore> subtree once we want to update the XML.

Before this patch, you'd get:
$ virsh change-media --eject --print-xml 10 hdc
<disk type="file" device="cdrom">
      <driver name="qemu" type="qcow2"/>

      <backingStore type="file" index="1">
        <format type="qcow2"/>
        <source file="/var/lib/libvirt/images/vm.1436949097"/>
        <backingStore/>
      </backingStore>
      <target dev="hdc" bus="ide"/>
      ...
    </disk>

After:

 $ virsh change-media --eject --print-xml 10 hdc
<disk type="file" device="cdrom">
      <driver name="qemu" type="qcow2"/>

      <target dev="hdc" bus="ide"/>
      ...
    </disk>
2016-02-18 09:50:45 +01:00
John Ferlan
71eb431c63 qemu: Remove local emulator
Remove the local variable 'emulator' and just use def->emulator

Signed-off-by: John Ferlan <jferlan@redhat.com>
2016-02-17 20:22:02 -05:00
Peter Krempa
d46eb9e5ea qemu: Kill VIR_WRAPPER_SHELL_PREFIX
The migration code now doesn't need it, so remove the macros and the
configure code that is detecting it.
2016-02-17 17:27:02 +01:00
Cole Robinson
4b9fa11450 qemu: Move PORT definitions to qemu_conf.c
Which is the only user. That was the only reason for including
qemu_command.h, though we need to explicitly include qemu_domain.h
afterwards.
2016-02-17 11:07:21 -05:00
Cole Robinson
ad8590905e tests: Remove unused virtTestClearLineRegex
This was only used for test 'xml blanking', which has now all
been removed, and isn't an ideal paradigm anyways since it
inhibits easy XML regeneration.
2016-02-17 11:07:21 -05:00
Cole Robinson
1064fb3314 tests: lxcconf2xml: Drop XML blanking
Hardcode a UUID like we did for qemuargv2xml, so we can use standard
comparison helpers, which gives us VIR_TEST_REGENERATE_OUTPUT support
2016-02-17 11:07:21 -05:00
Cole Robinson
2fc011fe04 tests: qemuargv2xml: Drop memory XML blanking
The memory XML blanking is only there to avoid the unit= churn that
was added by default a long time ago.

Drop the blanking, switch over to using the standard comparison
helpers, and regenerate the output with VIR_TEST_REGENERATE_OUTPUT.
2016-02-17 11:07:21 -05:00
Cole Robinson
73ed1d7401 tests: qemuargv2xml: hardcode disk auth usage
If a qemuargv has iscsi or ceph secrets on the command line, we will
convert that to XML like:

  <auth username='myname'>
    <secret type='iscsi'/>
  </auth>

This is not valid XML, as either a UUID or usage must be specified in
the secret block. It's not clear though how the argv2xml code can do
anything correct here, since XML like this requires a libvirt secret
object to have already been defined.

The current test suite handles this by blanking out any <secret> block
in the XML. This avoids domainschematest failures.

Instead of blanking, let's hardcode a usage= name. This lets us test
the other bits of generated <secret> XML, and is a step towards wiring
up VIR_TEST_REGENERATE_OUTPUT
2016-02-17 11:07:21 -05:00
Cole Robinson
b25027ba5d tests: qemuargv2xml: Remove UUID randomness
Overwrite any randomly generated UUID to use a hardcoded value, so
we don't need to blank it when comparing XML.
2016-02-17 11:07:21 -05:00
Cole Robinson
7973c0efdf tests: qemuargv2xml: Remove unneeded XML blanking
None of the test cases depend on dropping these XML bits
2016-02-17 11:07:21 -05:00
Peter Krempa
6b9b21db70 qemu: Remove unnecessary calculations in qemuDomainSaveMemory
Now that the file migration doesn't require us to use 'dd' and other
legacy stuff for too old qemus we don't even have to calcuate the
offsets and other stuff.
2016-02-17 15:54:44 +01:00
Peter Krempa
4e615aabe2 qemu: monitor: Remove unused qemuMonitorMigrateToFile
With the currently supported qemus we always migrate to file
descriptors so the old function is not required any more.

Additionally QEMU_MONITOR_MIGRATE_TO_FILE_TRANSFER_SIZE macro is now
unused.
2016-02-17 15:54:44 +01:00
Michal Privoznik
6bfb03ae15 vircgroup: Update virCgroupDenyDevicePath stub
In cf113e8d we changed the declaration of
virCgroupAllowDevicePath() and virCgroupDenyDevicePath().
However, while updating the stub for non-cgroup platforms for the
former we forgot to update the latter too causing a build
failure.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-02-17 14:25:35 +01:00
Ján Tomko
cdb757c970 Revert "storageVolCreateXMLFrom: Check if backend knows how to createVol"
This reverts commit 611a278fa4.

According to the original commit message, this is dead code:

  It is highly unlikely that a backend will know how to create a
  volume from a different volume (buildVolFrom) and not know how to
  create an empty volume (createVol).
2016-02-17 13:29:41 +01:00
Erik Skultety
67121f0834 syms: add forgotten virAdmConnectClass symbol
Although it currently doesn't cause any linking issues, the symbol should be
exported correctly according to our conventions.
2016-02-17 12:59:31 +01:00
Erik Skultety
2c21e5b592 virt-admin: Introduce cmdSrvList
Since we introduced listing API earlier in these series, it's time
to wire up the API to the virt-admin client.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-02-17 12:46:34 +01:00
Erik Skultety
1a07c2efb3 admin: Introduce adminDaemonConnectListServers API
This API is merely a convenience API, i.e. when managing clients connected to
daemon's servers, we should know (convenience) which server the specific client
is connected to. This implies a client-side representation of a server along
with a basic API to let the administrating client know what servers are actually
available on the daemon.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-02-17 12:46:34 +01:00
Erik Skultety
c50a834b80 admin: Introduce virAdmServer structure
This is the key structure of all management operations performed on the
daemon/clients. An admin client needs to be able to identify
another client (either admin or non-privileged client) to perform an
action on it. This identification includes a server the client is
connected to, thus a client-side representation of a server is needed.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-02-17 12:46:34 +01:00
Erik Skultety
159a37f659 admin: Move admin_server.{h,c} to admin.{h,c}
This change is merely because admin_server would contain all the code
from dispatchers and helpers to the actual APIs. Admin should have
similar structure to the daemon-side remote driver - dispatchers and
helpers in a separate module, APIs in a separate module.

Best viewed with -M.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-02-17 12:46:34 +01:00
Erik Skultety
252610f7dd virnetdaemon: Store servers in a hash table
Since the daemon can manage and add (at fresh start) multiple servers,
we also should be able to add them from a JSON state file in case of a
daemon restart, so post exec restart support for multiple servers is also
provided. Patch also updates virnetdaemontest accordingly.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2016-02-17 12:46:34 +01:00
Erik Skultety
353de572a6 util: Refactor virHashForEach so it returns as soon as an iterator fails
The method will now return 0 on success and -1 on error, rather than number of
items which it iterated over before it returned back to the caller. Since the
only place where we actually check the number of elements iterated is in
virhashtest, return value of 0 and -1 can be a pretty accurate hint that it
iterated over all the items. However, if we really want to know the number of
items iterated over (like virhashtest does), a counter has to be provided
through opaque data to each iterator call. This patch adjusts return value of
virHashForEach, refactors the body, so it returns as soon as one of the
iterators fail and adjusts virhashtest to reflect these changes.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-02-17 12:46:34 +01:00
Erik Skultety
cc48d3a122 util: Add a return value to void hash iterators
Our existing virHashForEach method iterates through all items disregarding the
fact, that some of the iterators might have actually failed. Errors are usually
dispatched through an error element in opaque data which then causes the
original caller of virHashForEach to return -1. In that case, virHashForEach
could return as soon as one of the iterators fail. This patch changes the
iterator return type and adjusts all of its instances accordingly, so the
actual refactor of virHashForEach method can be dealt with later.

Signed-off-by: Erik Skultety <eskultet@redhat.com>
2016-02-17 12:46:34 +01:00
Peter Krempa
d1242ba24a qemu: cgroup: Setup cgroups for bios/firmware images
oVirt wants to use OVMF images on top of lvm for their 'logical'
storage thus we should set up device ACLs for them so it will actually
work.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1305922
2016-02-17 12:29:00 +01:00
Peter Krempa
d6c91b3c03 qemu: cgroup: Extract guts of qemuSetupImageCgroupInternal
They will later be reused for setting cgroup for other image backed
devices.
2016-02-17 10:54:05 +01:00
Peter Krempa
2b15f2a196 qemu: cgroup: Split up qemuSetImageCgroupInternal
Separate the Teardown and Setup code paths into separate helpers.
2016-02-17 10:54:05 +01:00