Make rewriting it easier.

We support up to four levels of nested USB devices in the guest.

Add a test for a domain using all four and a negative test for a domain
using five.

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Several places in the code update qemuMonitorMigrationParams structure
and qemuMigrationSetParams is then used to set them all at once.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

They can be used to tune auto-convergence algorithm (which is enabled
with VIR_MIGRATE_AUTO_CONVERGE).
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

We should not require any parameters to be present. After all we have
the *_set bools to express that some parameters were not set.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

qemuMonitorMigrationParams is a better name for a structure which
contains various migration parameters. While doing that, we should use
full names for individual parameters.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Compression parameters are not the only migration parameters.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Checking whether the function has anything to do is better done in the
function rather then requiring callers to do that.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

vendor_id is (and always was) already freed in virCPUDefFreeModel.

This effectively reverts commit fb49ffc3.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

The function gets a reference on virQEMUDriverConfig which needs to be
released before returning.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Since virQEMUCapsNewForBinaryInternal was introduced,
virQEMUCapsNewForBinary is no longer used outside qemu_capabilities.c.
Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Allow modification of specific vCPU states via the guest agent.

Allow gathering available vcpu ids, their state and offlinability via
the qemu guest agent. The maximum id was chosen arbitrarily and ought
to be enough for everybody.

Documentation for the "guest-set-vcpus" command describes a proper
algorithm how to set vcpus. This patch makes the following changes:

- state of cpus that has not changed is not updated
- if the command was partially successful the command is re-tried with
  the rest of the arguments to get a proper error message
- code is more robust against malicious guest agent
- fix testsuite to the new semantics

Add a straightforward implementation for using the new APIs.

To allow finer-grained control of vcpu state using guest agent this API
can be used to individually set the state of the vCPU.

This will allow to better control NUMA enabled guests and/or test
various vCPU configurations.

Add a rather universal API implemented via typed params that will allow
to query the guest agent for the state and possibly other aspects of
guest vcpus.

Since it's rather tedious to write the dispatchers for functions that
return an array of typed parameters (which are rather common) let's add
some rpcgen code to generate them.

Make them work again...  The xml2xml had been working, but the xml2argv
were not working. Making the xml2argv work required a few adjustments to
the xml to update to more recent times.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Rather than inline code secret lookup for rbd/iscsi, use the common function.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Create a helper virStorageBackendCreateQemuImgSetOptions to set either
the qemu-img -o options or the previous mechanism using -F
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Create a helper virStorageBackendCreateQemuImgSetBacking to perform the
backing store set
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

Since we support QEMU 0.12 and later, checking for support of specific flags
added prior to that isn't necessary.

Thus start with the base of having the "-o options" available for the
qemu-img create option and then determine whether we have the compat
option for qcow2 files (which would be necessary up through qemu 2.0
where the default changes to compat 0.11).

Adjust test to no long check for NONE and FLAG options as well was removing
results of tests that would use that option.
Signed-off-by: NJohn Ferlan <jferlan@redhat.com>

So far this is only useful for recalculating NUMA memory size,
which this function cannot parse.

This will let us generate USB addresses based on this flag.

The default USB controller only has two ports.

This script can already operate on a list of files.
Add a --check parameter to check if multiple files are wrapped
correctly with a single invocation of the script.

If --in-place is supplied as the first argument to the script,
replace the file in-place instead of printing to stdout.

This will be useful to check if the file is wrapped already.

Leave the printing up to &rewrap.

We have a list of parameters in @args, that need to be rewrapped
and separated by a space and escaped newline: " \\\n", with the
exception of the last one, which only needs a newline.

Instead of a for cycle, rewrap the individual arguments using map,
and interleave them with escaped newlines by using join.

Do not print anything, let the caller take care of it.

Split out the code wrapping the single argument.

Shorten the rewrap subroutine by splitting out the code
dealing with a single line.

Also remove $file from the warning.