ACPI is only supported on x86 platform, PPC can't support it.
So QEMU_CAPS_NO_ACPI shouldn't be set.

This patch is to remove QEMU_CAPS_NO_ACPI capability for
non-x86 platform.
Signed-off-by: NLi Zhang <zhlcindy@linux.vnet.ibm.com>

Historically there was an inconsistency in handling of the
itanium arch. The xen driver & CPU model code treated it
as 'ia64' but the QEMU capabilities code used 'itanium'. On
the grounds that no one has ever seriously used  itanium
with QEMU, while RHEL shipped itanium with Xen, we should
favour 'ia64' as the canonical format

This patch fixes just the word Affinites to Affinities (it's really
painful to search in TAGS without being able to find the right
function).

Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Convert the host capabilities and domain config structs to
use the virArch datatype. Update the parsers and all drivers
to take account of datatype change
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

Use virArch APIs to determine host architecture when launching
QEMU.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

When LXC labels USB devices during hotplug, it is running in
host context, so it needs to pass in a vroot path to the
container root.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

'-device VGA' maps to '-vga std'
'-device cirrus-vga' maps to '-vga cirrus'
'-device qxl-vga' maps to '-vga qxl'
             (there is also '-device qxl' for secondary devices)
'-device vmware-svga' maps to '-vga vmware'

For qemu(>=1.2), we can use -device to replace -vga for video
device. For the primary video device, the patch tries to use 0x2
slot for matching old qemu. If the 0x2 slot is allocated already,
the addr property could help for using any available slot.
For qemu(< 1.2), we keep using -vga for primary device.

QEMU_CAPS_DEVICE_QXL          -device qxl
QEMU_CAPS_DEVICE_VGA          -device VGA
QEMU_CAPS_DEVICE_CIRRUS_VGA   -device cirrus-vga
QEMU_CAPS_DEVICE_VMWARE_SVGA  -device vmware-svga

QEMU_CAPS_DEVICE_VIDEO_PRIMARY  /* safe to use -device XXX
                                 for primary video device */

Fix a typo in qemuCapsObjectTypes, the string 'qxl' here
should be -device qxl rather than -vga [...|qxl|..]

Noticed these while building on FreeBSD.

* src/qemu/qemu_monitor.c (qemuMonitorBlockInfoLookup): Rename
variable to avoid 'devname' collision.
* src/qemu/qemu_driver.c (qemuDomainInterfaceStats): Mark unused
variable.

When a network device's bridge connection is changed by
virDomainUpdateDevice, libvirt first removes the netdev's tap from its
old bridge, then adds it to the new bridge. Sometimes, due to a
network being destroyed while a guest device is still attached, the
tap may already be "removed" from the old bridge (or the old bridge
may not even exist any more); the existing code was needlessly failing
the update when this happened, making it impossible to recover from
the situation without completely detaching (i.e. removing) the netdev
from the guest and re-attaching.

Instead of failing the entire operation when removal of the tap from
the old bridge fails, this patch changes qemuDomainChangeNetBridge to
just log a warning and continue, allowing a reasonable recover from
the situation.

(you'll appreciate this change if you ever accidentally destroy a
network while your guests are still using it).

Refactor virLockManagerPluginNew() so that the caller does
not need to pass in the config file path itself - just the
config directory and driver name.

Fix QEMU to actually pass in a config file when creating the
default lock manager plugin, rather than NULL.
Signed-off-by: NDaniel P. Berrange <berrange@redhat.com>

The qemuCapsInitQMP method never frees the QEMU 'package'
version string.

* Autotools changes:
  - Don't assume Qemu is Linux-only
  - Check Linux headers only on Linux
  - Disable firewalld on FreeBSD
* Initctl:
  Initctl seem to present only on Linux, so stub it on other platforms
* Raw I/O: Linux-only as well
* Headers cleanup

It's no longer used and also causes build fail on FreeBSD.

Report an error if unlink of the managedsave file fails.

Save a few lines moving assignments into conditions and fix braces
position.

This patch adds a new domain lookup helper qemuDomObjFromDomainDriver
that lookups the domain and leaves the driver locked. The driver is
returned as the second argument of that function. If the lookup fails
the driver is unlocked to help avoid cleanup codepaths.

This patch also improves docs for the helpers.

When a qemu domain is backed by huge pages, apparmor needs to grant the domain
rw access to files under the hugetlbfs mount point.  Add a hook, called in
qemu_process.c, which ends up adding the read-write access through
virt-aa-helper.  Qemu will be creating a randomly named file under the
mountpoint and unlinking it as soon as it has mmap()d it, therefore we
cannot predict the full pathname, but for the same reason it is generally
safe to provide access to $path/**.
Signed-off-by: NSerge Hallyn <serge.hallyn@ubuntu.com>

Save and managedsave both use migration to file. This patch reuses
qemuMigrationIsAllowed to check if the migration could happen before
trying.

Qemu doesn't support migration on guests with host devices. This patch
adds a check to ensure migration is safe before actually doing so.

This patch exports qemuMigrationIsAllowed and adds a new parameter to it
to denote if it's a remote migration or a local migration. Local
migrations are used in snapshots and saving of the machine state and
have fewer restrictions. This patch also adjusts callers of the function
and tweaks some error messages to be more universal.

Currently there is no way to detect it via QMP and requesting "-sandbox
off" works correctly even if it was compiled out, so this will work
unless someone both requests the sandbox in qemu.conf and builds QEMU
without the support for it.

These classes can borrow unused bandwidth. Basically,
only egress qdsics can have classes, therefore we can
do this kind of traffic shaping only on host's outgoing,
that is domain's incoming traffic.

When the disk snapshot part of an external system checkpoint fails the
memory image is retained. This patch adds code to remove the image in
such case.

In case the snapshot code isn't able to restart CPUs after an external
checkpoint we would leak a copy of the domains XML definition. This
patch fixes the cleanup path.

False positive, but it breaks the build with gcc-4.6.3.

qemu/qemu_migration.c:2931:37: error: 'offline' may be used
uninitialized in this function [-Werror=uninitialized]
qemu/qemu_migration.c:2887:10: note: 'offline' was declared here

When restarting CPUs after an external snapshot, the restarting function
was called without the appropriate async job type. This caused that a
new sync job wasn't created and allowed races in the monitor.

Offline migration transfers inactive definition of a domain (which may
or may not be active). After successful completion, the domain remains
in its current state on source host and is defined but inactive on
destination host. It's a bit more clever than virDomainGetXMLDesc() on
source host followed by virDomainDefineXML() on destination host, as
offline migration will run pre-migration hook to update the domain XML
on destination host. Currently, copying non-shared storage is not
supported during offline migration.

Offline migration can be requested with a new migration flag called
VIR_MIGRATE_OFFLINE (which has to be combined with
VIR_MIGRATE_PERSIST_DEST flag).

This fixes a problem that showed up during testing of:

  https://bugzilla.redhat.com/show_bug.cgi?id=881480

Due to a logic error in the function that gets the name of the bridge
an interface connects to, any time a bridge was specified directly
(type='bridge') rather than indirectly (type='network'), An error
would be logged (although the operation would then complete
successfully):

   Network type 6 is not supported

The final virReportError() in the function
qemuDomainNetGetBridgeName() was apparently avoided in the past with a
"goto cleanup" at the end of each case, but the case of bridge somehow
no longer has that final goto cleanup.

The proper solution is anyway to not rely on goto's, but put the error
log inside an else {} clause, so that it's executed only if the type
is neither bridge nor network (in reality, this function should only
ever be called for those two types, that's why this is an internal
error).

While making this change, the error message was also tuned to be more
correct (since it's not really the type of the network, but the type
of the interface, and it *is* otherwise supported, it's just that the
interface type in question doesn't *have* a bridge device associated
with it, or at least we don't know how to get it).

If a network interface model is not specified, libvirt will run
into an unchecked NULL pointer coredump. On the other hand if
the empty model is ignored, a PCI bus address would be generated,
which is not supported by S390.
Since the only valid network type model for S390 is virtio,
we use this as the default value, which is the same for QEMU.
Signed-off-by: NViktor Mihajlovski <mihajlov@linux.vnet.ibm.com>

Things are supposed to look like:

<machine canonical='pc-0.12'>pc</machine>

But are currently swapped. This can cause many VMs to revert to having
machine type='pc' which will affect save/restore across qemu upgrades.

QEMU supports setting vendor and product strings for disk since
1.2.0 (only scsi-disk, scsi-hd, scsi-cd support it), this patch
exposes it with new XML elements <vendor> and <product> of disk
device.

Unmanaged PCI devices were only leaked if pciDeviceListAdd failed but
managed devices were always leaked. And leaking PCI device is likely to
leave PCI config file descriptor open. This patch fixes
qemuReattachPciDevice to either free the PCI device or add it to the
inactivePciHostdevs list.

The device is still referenced from pcidevs and freeing it would leave
an invalid pointer there.

An attempt to attach device that is already attached to a domain results
in the following error:

virsh # attach-device rhel6 pci2 --persistent
error: Failed to attach device from pci2
error: invalid argument: device is already in the domain configuration

The "invalid argument" error code looks wrong, we usually use "operation
invalid" when the action cannot be done in current state.

"disk" is initialized to "dev->data.disk" in the beginning of the
function.

Only one error in qemu_monitor was already using the relatively
new OPERATION_UNSUPPORTED error, even though it is a better fit
for all of the messages related to options that are unsupported
due to the version of qemu in use rather than due to a user's
XML or .conf file choice.  Suggested by Osier Yang.

* src/qemu/qemu_monitor.c (qemuMonitorSendFileHandle)
(qemuMonitorAddHostNetwork, qemuMonitorRemoveHostNetwork)
(qemuMonitorAttachDrive, qemuMonitorDiskSnapshot)
(qemuMonitorDriveMirror, qemuMonitorTransaction)
(qemuMonitorBlockCommit, qemuMonitorDrivePivot)
(qemuMonitorBlockJob, qemuMonitorSystemWakeup)
(qemuMonitorGetVersion, qemuMonitorGetMachines)
(qemuMonitorGetCPUDefinitions, qemuMonitorGetCommands)
(qemuMonitorGetEvents, qemuMonitorGetKVMState)
(qemuMonitorGetObjectTypes, qemuMonitorGetObjectProps)
(qemuMonitorGetTargetArch): Use better error category.