For one VM, it could had more than one graphical display.
Such as we coud add both vnc and spice display to a VM.

This patch introduces '--all' for showing all
possible graphical display of a active VM.
Signed-off-by: NChen Hanxiao <chenhanxiao@gmail.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>

If the event is already disabled, then don't bother with setting it
disabled again.  Causes unnecessary error on systems that don't support
the feature anyway.

Make it clearer that the perf event is based/for the host cpu and
use the virPerfEventTypeToString to convert the type to a string

https://bugzilla.redhat.com/show_bug.cgi?id=1381714

Alter the descriptions to match what the cpu_cycles actually is

The intel-iommu device has existed since QEMU 2.2.0, but
it was only possible to create it with -device since
QEMU 2.7.0, thanks to:

  commit 621d983a1f9051f4cfc3f402569b46b77d8449fc
  Author: Marcel Apfelbaum <marcel@redhat.com>
  Date:   Mon Jun 27 18:38:34 2016 +0300

    hw/iommu: enable iommu with -device

    Use the standard '-device intel-iommu' to create the IOMMU device.
    The legacy '-machine,iommu=on' can still be used.

The libvirt capability check & command line formatting code
is thus broken for all QEMU versions 2.2.0 -> 2.6.0 inclusive.

This fixes it to use iommu=on instead.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

This has been announced on the list:

https://www.redhat.com/archives/libvir-list/2016-October/msg00187.htmlSigned-off-by: NMarko Myllynen <myllynen@redhat.com>
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>

Commit 660468b1 forgot to add it, so let's add it now to prevent future linker
issues.
Signed-off-by: NErik Skultety <eskultet@redhat.com>

This was needed for RHEL 4 vintage distributions, which we
haven't supported for a long time now.

Running the output of qemu -help doesn't make any sense.  We should be
looking for libvirt being mentioned in the output.  This worked by
accident, let's make it work as expected it to.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

This file requires three steps instead of two.
Move it earlier in the list of targets to avoid waiting for it.

Remove DOC_SOURCE_DIR, introduced by and
unused since commit b325d741.

PERL is already detected in configure.ac.

Since introduction of chardev hotplug the code was wrong for the UDP
case and basically created a TCP socket instead. Use proper objects and
type for UDP.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1377602

Until now the test was rather useless since it didn't check the
arguments formatted and didn't use properly configured chardev objects.

Add the expected arguments and instrument the test to validate them.
Modify some test cases to actually add valid data.

Note that the UDP test data is currently wrong due to a bug.

The chardev attach test would do all the tests in one virTestRun
instance. If one sub-test failed then the test would report failure
improperly and the error would be hard to debug since the error pointer
was overwritten.

Add code that takes a string and matches it against the data passed as
arguments from qemu. This is a simpler version of
qemuMonitorTestAddItemParams.

Use much simpler logic to determine parts of the code to print.

Rather than copy-paste - use a macro

Unfortunately due to how the RNG schema was written keeping the 'value'
and 'value'_max next to each other in the XML causes a schema failure,
so the FORMAT has to write out singly rather than optimizing to write
out both values at once
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

We're about to add more options, let's avoid having multiple if-then-else
which each try to set up the qemuMonitorJSONMakeCommand call with all the
parameters it knows about.

Instead, use the fact that when a NULL is found in the argument list that
processing of the remaining arguments stops and just have call.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

We're about to add 6 new options and it appears (from testing) one cannot
utilize both the shorthand (alias) and (much) longer names for the arguments.
So modify the command builder to use the longer name and of course alter the
test output .args to have the similarly innocuous long name.

Also utilize a macro to build that name makes it so much more visually
appealing and saves a few characters or potential cut-n-paste issues.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

It was missing... Also since I'm using the soft link from qemuxml2xmloutdata
to the qemuxml2argvdata file, modify the output file to have the necessary
<address> elements plus the mouse and keyboard.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

The upstream qemu commit 'dce13204' changed the wording just slightly
to add 'in bursts' essentially.  Just following that model here.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Change Marco to Macro
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

When I added support for the pcie-expander-bus controller in commit
bc07251f, I incorrectly thought that it only had a single slot
available. Actually it has 32 slots, just like the root complex aka
pcie-root (the part that I *did* get correct is that unlike pcie-root
a pcie-expander-bus doesn't allow any integrated endpoint devices -
only pcie-root-ports and dmi-to-pci-controllers are allowed).

GCC complained that

vsh.c: In function 'vshReadlineOptionsGenerator':
vsh.c:2622:29: warning: unused variable 'opt' [-Wunused-variable]
         const vshCmdOptDef *opt = &cmd->opts[list_index];
                             ^
vsh.c: In function 'vshReadlineParse':
vsh.c:2830:44: warning: 'opt' may be used uninitialized in this function
[-Wmaybe-uninitialized]
             completed_list = opt->completer(autoCompleteOpaque,
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

This will fetch "this device" from the recently returned 'dev' and perform
common error checking for the paths that call it.

This will grab the 'dev' from devices and do the common validation checks.

Reduce some cut-n-paste code by creating common helper. Make use of the
recently added virJSONValueObjectStealArray to grab the devices list as
part of the common code (we we can Free the reply) and return devices for
each of the callers to continue to parse.

NB: This also adds error checking to qemuMonitorJSONDiskNameLookup
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Provide the Steal API for any code paths that will desire to grab the
object array and then free it afterwards rather than relying to freeing
the whole chain from the reply.

No sense opening a connection only to fail because we don't support the
type of build being attempted.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Rather than use stack allocated state context pointers, let's allocate and
free the state context pointer.  In doing so, we'll shrink the code a bit
since many routines perform the same initialization sequence.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Since none of the callers check the status, let's just alter it to
a static void.

While we're at it - scrap the local runtime variable and just do the
math in the VIR_DEBUG directly.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Implement support for VIR_DOMAIN_VCPU_HOTPLUGGABLE so that users can
choose to make vcpus added by the API removable.

For compatibility reasons virDomainSetVcpus needs to add vcpus as non
hotpluggable which means that the users will not be able to unplug it
after the VM has started. Add a flag that will allow to tell the API
that the unpluggable vcpus are okay.

If attaching to a qemu process fails after opening the monitor socket
libvirt does not clean up the monitor. As the monitor also holds a
reference to the domain object the qemu attach API basically leaks it.

QEMU also does not interact on a second monitor connection and thus a
further attempt to attach to it would lock up.

Prevent libvirt from leaking the monitor by explicitly closing it.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1378401

Attaching to a existing qemu process allows to get us into a situation
when qemu is new enough to have JSON monitor and new vCPU hotplug but
the json monitor is not used. The vCPU detection code would require it
though. This broke attaching to qemu processes.

Make the condition less strict and just skip the vCPU hotplug detection
if JSON monitor is not available.

Resolves one of the symptoms in:
https://bugzilla.redhat.com/show_bug.cgi?id=1378401

Libvirt, on its own, shouldn't decide whether an expired lease should
stay in the custom leases database or not. It should rather rely on
the 'DEL' event from dnsmasq.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>

The NSS module shouldn't rely on custom leases database to not have
entries for leases which have expired.
Signed-off-by: NMichal Privoznik <mprivozn@redhat.com>
Reviewed-by: NMichal Privoznik <mprivozn@redhat.com>

We are about to add 6 new values to fetch. This will put us over the
current limit of 16 (we're at 13 now).

Once there are more than 16 parameters, this will affect existing clients
that attempt to fetch blockiotune config values for the domain from the
remote host since the server side has no mechanism to determine whether
the capability for the emulator exists and thus would attempt to return
all known values from the persistentDef. If attempting to fetch the
blockiotune values from a running domain, the code will check the emulator
capabilities and set maxparams (in qemuDomainGetBlockIoTune) appropriately.

On the client side of the remote connection, it uses this constant in
xdr_remote_domain_get_block_io_tune_ret and virTypedParamsDeserialize
calls, so if a remote server returns more than 16 parameters, then the
client will fail with "Unable to decode message payload".
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

The REMOTE_DOMAIN_MEMORY_PARAMETERS_MAX was erroneously used in the
remoteDomainBlockStatsFlags and remoteDomainGetBlockIoTune calls. Change
the constant to be the right one.

Fortunately, all 3 are defined as 16.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>