Now with the proper domain config validation infrastructure the check
can be moved to a place that doesn't make domains vanish.

Since it will not be called from outside of conf we can unexport it too
if we move it to the appropriate place.

Test suite change is necessary since the error will be reported sooner
now.

To avoid duplicating all the checks when starting a fresh VM from a
possibly unchecked config, call the domain def validator.

Validation of qemu process startup requires to know whether the process
is used for a fresh VM or whether it's reloaded from a
snapshot/migration. Pass this information in via a flag rather than
calculating it from a bunch of bools.

Similarly to the domain definition validator add a device validator. The
change to the prototype of the domain validator is necessary as
virDomainDeviceInfoIterateInternal requires a non-const pointer.

It's passed to all places along with the structure.

Until now we weren't able to add checks that would reject configuration
once accepted by the parser. This patch adds a new callback and
infrastructure to add such checks. In this patch all the places where
rejecting a now-invalid configuration wouldn't be a good idea are marked
with a new parser flag.

Make it obvious that the flag is controlling RNG schema validation.

There is no cleanup to be done.

Remove unnecessary ret variable and return early if we have no media
to save on indentation.

Use virTrimSpaces instead of a custom implementation.

Also use the more common "Unable to initialize mutex" string
and virReportSystemError instead of virStrerror.

They are no longer used.

Open code the call to udev_device_get_sysattr_value
in the one place where it's needed.

Callers only check for an error or a specific integer value.

The callers only care for an error, and a missing attribute
is simply NULL.

Most of the code paths free it right after converting it to
an integer.

We only care about the failure, not a missing property.

There is no need to differentiate between PROPERTY_FOUND
and PROPERTY_MISSING - we can just look if the string is non-NULL.

Historically, we added heads=1 to videos, but for example for qxl, we
did not reflect that on the command line.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1283207Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Add capabilities for both qxl and qxl-vga devices.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Error out on parsing errors and use a local const char pointer
instead of chained ifs to check whether we found a match.

Since the switch to VIR_STRDUP this function returns 1 on success,
but the caller treats any non-zero value as failure.

Use udevHasDeviceProperty instead of udevGetStringProperty.
We do not need to copy the string since we do not need it.

Also add braces around the if body, since the change made
syntax check complain.

Two out of three callers free it right after converting it to a number.

Also change the comment at the beginning of the function, because
the comment inside the function told me to.

Open code the error message.

Remove the debug message, open code the error in the two udevGetUint
callers and use a more specific error in SCSI and PCI processing.

The wrapper adds an error message or a debug log.

Since we already log the properties we get from udev as strings,
there is no much use for the debug logs.

Open code the error message and delete the function.

Use virStrToLong_ui instead of udevStrToLong_ui, reformat the code
and report a more specific error message.

Instead of separating it into STRPEFIX and str + strlen.

A variable without use is pointless.

Remove it, since we have no use for it.

If we have not allocated driver yet, there is nothing to cleanup.

Remove the ret variable and return early if there is no driver.

This will simplify cleanup.

Move pci_system_init and pci_system_cleanup into separate functions,
to make the conditional compilation easier to read.

Most of the code paths had to reset it to -1 and returning 0 was
only possible if we made it to the end of the function.

Initialize it to -1 and only set it to 0 if we reach the end, as we do
in most of libvirt code.