instead of simple 'if' statement as virCondWait can return
even if associated condition was not signaled.

Detected by valgrind. Leak introduced in commit 88a993b1:

* tools/virsh.c: fix memory leak on cmdDomblklist.

* how to reproduce?
  % valgrind -v --leak-check=full virsh domblklist <domain name>

* actual valgrind result:

==6573== 1,836 bytes in 1 blocks are definitely lost in loss record 110 of 124
==6573==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==6573==    by 0x330D71497D: xdr_string (in /lib64/libc-2.12.so)
==6573==    by 0x4D26CED: xdr_remote_nonnull_string (remote_protocol.c:30)
==6573==    by 0x4D28138: xdr_remote_domain_get_xml_desc_ret (remote_protocol.c:1418)
==6573==    by 0x4D3C0C2: virNetMessageDecodePayload (virnetmessage.c:382)
==6573==    by 0x4D3279F: virNetClientProgramCall (virnetclientprogram.c:382)
==6573==    by 0x4D0D50B: callWithFD (remote_driver.c:4339)
==6573==    by 0x4D0D5AB: call (remote_driver.c:4360)
==6573==    by 0x4D16EAF: remoteDomainGetXMLDesc (remote_client_bodies.h:861)
==6573==    by 0x4CF9F4F: virDomainGetXMLDesc (libvirt.c:4098)
==6573==    by 0x4154D9: cmdDomblklist (virsh.c:1722)
==6573==    by 0x4149E2: vshCommandRun (virsh.c:16365)
==6573==
==6573== 46,009 (352 direct, 45,657 indirect) bytes in 1 blocks are definitely lost in loss record 123 of 124
==6573==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==6573==    by 0x3318286DC6: xmlXPathNewContext (in /usr/lib64/libxml2.so.2.7.6)
==6573==    by 0x4C79AE2: virXMLParseHelper (xml.c:779)
==6573==    by 0x415512: cmdDomblklist (virsh.c:1726)
==6573==    by 0x4149E2: vshCommandRun (virsh.c:16365)
==6573==    by 0x427743: main (virsh.c:17867)
==6573==
==6573== LEAK SUMMARY:
==6573==    definitely lost: 2,188 bytes in 2 blocks
==6573==    indirectly lost: 45,657 bytes in 332 blocks
==6573==      possibly lost: 0 bytes in 0 blocks
==6573==    still reachable: 128,034 bytes in 1,364 blocks
==6573==         suppressed: 0 bytes in 0 blocks
Signed-off-by: NAlex Jia <ajia@redhat.com>

When parsing ppc64 models on an x86 host an out-of-memory error message is displayed due
to it checking for retcpus being NULL. Fix this by removing the check whether retcpus is NULL
since we will realloc into this variable.
Also in the X86 model parser display the OOM error at the location where it happens.

Fix memory leak:

==27534== 24 bytes in 1 blocks are definitely lost in loss record 207 of 530
==27534==    at 0x4A05E46: malloc (vg_replace_malloc.c:195)
==27534==    by 0x38EC26EC37: vasprintf (in /lib64/libc-2.13.so)
==27534==    by 0x4E998E6: virVasprintf (util.c:1677)
==27534==    by 0x4E999F1: virAsprintf (util.c:1695)
==27534==    by 0x4F1EAAC: nodeGetInfo (nodeinfo.c:593)
==27534==    by 0x47948F: qemuCapsInitCPU (qemu_capabilities.c:855)
==27534==    by 0x4796B1: qemuCapsInit (qemu_capabilities.c:915)
==27534==    by 0x456550: qemuCreateCapabilities (qemu_driver.c:245)
==27534==    by 0x4578C4: qemudStartup (qemu_driver.c:580)
==27534==    by 0x4F20886: virStateInitialize (libvirt.c:852)
==27534==    by 0x420E55: daemonRunStateInit (libvirtd.c:1156)
==27534==    by 0x4E94C56: virThreadHelper (threads-pthread.c:157)

Mark this leaked variable as const char * when it is passed into another
function. 

Pool creates new workers dynamically. However, it is possible
for a pool to have no workers. If we want to free that pool,
we don't want to wait on quit condition as it will never be
signaled.

Due to copy&paste error in c1df2c14,
virNetDevBridge[SG]etSTPDelay APIs were accessing wrong file.

Add support for newly supported Intel cpu features. Newly supported
flags are: pclmuldq, dtes64, smx, fma, pdcm, movbe, xsave, osxsave and
avx. This adds support for Intel's Sandy Bridge platform.

Reported by Alex Jia <ajia@redhat.com>. Function cmdDomIfGetLink did not
set a success return value on success path.

Signed-off-by: Alex Jia<ajia@redhat.com>

A preparatory patch for DHCP snooping where we want to be able to
differentiate between a VM's interface using the tuple of
<VM UUID, Interface MAC address>. We assume that MAC addresses could
possibly be re-used between different networks (VLANs) thus do not only
want to rely on the MAC address to identify an interface.

At the current 'final destination' in virNWFilterInstantiate I am leaving
the vmuuid parameter as ATTRIBUTE_UNUSED until the DHCP snooping patches arrive.
(we may not post the DHCP snooping patches for 0.9.9, though)

Mostly this is a pretty trivial patch. On the lowest layers, in lxc_driver
and uml_conf, I am passing the virDomainDefPtr around until I am passing
only the VM's uuid into the NWFilter calls.

This patch cleans up return codes in the nwfilter subsystem.

Some functions in nwfilter_conf.c (validators and formatters) are
keeping their bool return for now and I am converting their return
code to true/false.

All other functions now have failure return codes of -1 and success
of 0.

[I searched for all occurences of ' 1;' and checked all 'if ' and
adapted where needed. After that I did a grep for 'NWFilter' in the source
tree.]

Detected by valgrind. Leak introduced in commit dc675f37:

* tools/virsh.c: fix memory leak on cmdDomIfGetLink.

* how to reproduce?
  % valgrind -v --leak-check=full virsh domif-getlink <domain name> 0

* actual valgrind result:

==13102== 18 bytes in 1 blocks are definitely lost in loss record 9 of 47
==13102==    at 0x4A05FDE: malloc (vg_replace_malloc.c:236)
==13102==    by 0x322A6A67DD: xmlStrndup (in /usr/lib64/libxml2.so.2.7.6)
==13102==    by 0x414892: cmdDomIfGetLink (virsh.c:1538)
==13102==    by 0x4136A2: vshCommandRun (virsh.c:16363)
==13102==    by 0x4253FB: main (virsh.c:17865)
==13102==
==13102== LEAK SUMMARY:
==13102==    definitely lost: 18 bytes in 1 blocks
==13102==    indirectly lost: 0 bytes in 0 blocks
==13102==      possibly lost: 0 bytes in 0 blocks
==13102==    still reachable: 127,888 bytes in 1,361 blocks
==13102==         suppressed: 0 bytes in 0 blocks
Signed-off-by: NAlex Jia <ajia@redhat.com>

Detected by valgrind. Leak introduced in commit e9bd9a08:

* tools/virsh.c: fix memory leak on cmdBlkdeviotune.

* how to reproduce?
  % valgrind -v --leak-check=full virsh blkdeviotune <domain name> <block device>

* actual valgrind result:

==12759== 576 bytes in 1 blocks are definitely lost in loss record 18 of 29
==12759==    at 0x4A04A28: calloc (vg_replace_malloc.c:467)
==12759==    by 0x42134E: _vshCalloc.clone.2 (virsh.c:422)
==12759==    by 0x4217CB: cmdBlkdeviotune (virsh.c:6364)
==12759==    by 0x4136A2: vshCommandRun (virsh.c:16363)
==12759==    by 0x4253FB: main (virsh.c:17865)
==12759==
==12759== LEAK SUMMARY:
==12759==    definitely lost: 576 bytes in 1 blocks
==12759==    indirectly lost: 0 bytes in 0 blocks
==12759==      possibly lost: 0 bytes in 0 blocks
==12759==    still reachable: 126,964 bytes in 1,342 blocks
==12759==         suppressed: 0 bytes in 0 blocks
Signed-off-by: NAlex Jia <ajia@redhat.com>

Jiri Denemark reported an instance of bootstrapping libvirt
failing when run inside a sandbox, traced to rpm trying to
access /var/ which was not permitted by the sandbox.

Alex Jia reported that 0.9.8-rc1 failed to bootstrap if patch(1)
is not installed.

* bootstrap.conf (buildreq): Avoid rpm call if python-config
exists.  Also, require patch, in case we have gnulib-local diffs.

In some error situations, the function testDomainRestoreFlags() could
unlock the test driver mutex without first locking it. This patch
moves the lock operation earlier, so that it occurs before any
potential jump down to the unlock call.

I found this problem while auditing the test driver lock usage to
determine the cause of a hang while running the following test:

  cd tests; while true; do printf x; ./undefine; done

This patch *does not* solve that problem, but we now understand its
actual source, and danpb is working on a patch.

https://bugzilla.redhat.com/show_bug.cgi?id=738725

Commit ecd8725c tried to silence a spurious warning on the initial
libvirt install, and commit ba6cbb18 tried to fix up the logic to the
correct Fedora version, but the warning was still present due to a
logic bug: since %{fedora} and %{rhel} are never simulatanously
set, then 0%{rhel} <= 6 made the %if always true.  Checking for
minimum versions (via >=) is okay, but checking for maximum versions
(via <=) requires a prerequisite test that the platform being tested
is non-zero.

Also fix a bogus setting of with_libxl (although we previously
hard-code with_libxl to 0 for rhel earlier in the file, so this
was not as severe a bug).

* libvirt.spec.in (with_cgconfig): Don't enable cgconfig on F16.

Over time, Fedora and RHEL RPMs have often backported upstream
patches that touched configure.ac and/or Makefile.am; this
necessitates rerunning the autotools for the patch to be effective.
Making this a one-liner spec tweak will make it easier for future
backports to pull patches without having to find all the places
to touch to properly use the autotools.  Meanwhile, there have been
historical instances where an update in the autotools caused FTBFS
situations, so this is not on by default.

* libvirt.spec.in (enable_autotools): New variable, default off.
(BuildRequires): Conditionally add autotools.
(%build): Conditionally use them before configure.
* mingw32-libvirt.spec.in: Likewise.

* src/lxc/lxc_controller.c: Fix check for tty count

The installation rules for the libvirt-guests.service were
totally broken

 - Installing in the wrong location
 - The location was not overridable
 - The install-systemd rule was not invoked anywhere
 - The install-systemd rule was not invoking install-initscript
   which it depends on
 - The installed service file lacked a .service extension

* tools/Makefile.am: Fix install of libvirt-guests.service

The %makeinstall macro does not set DESTDIR, instead of explicitly
prefixes %{buildroot} onto all paths. Thus we need to do the same
when setting the systemd unit dir

* libvirt.spec.in: Prefix %{buildroot} onto %{unitdir}

ppc64 as new arch type and pseries as new machine type are
added under <os> ...  </os>.
Signed-off-by: NBharata B Rao <bharata@linux.vnet.ibm.com>
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>

 assumptions from generic code.

This implements the minimal set of changes needed in libvirt to launch a
PowerPC-KVM based guest.
It removes x86-specific assumptions about choice of serial driver backend
from generic qemu guest commandline generation code.
It also restricts the ACPI capability to be available for an x86 or
x86_64 domain.
This is not a complete solution -- it still does not guarantee libvirt
the capability to flag non-supported options in guest XML. (Eg, an ACPI
specification in a PowerPC guest XML will still get processed, even
though qemu-system-ppc64 does not support it while qemu-system-x86_64 does.)
This drawback exists because libvirt falls back on qemu to query supported
features, and qemu '-h' blindly lists all capabilities -- irrespective
of whether they are available while emulating a given architecture or not.
The long-term solution would be for qemu to list out capabilities based
on architecture and platform -- so that libvirt can cleanly make out what
devices are supported on an arch (say 'ppc64') and platform (say, 'mac99').
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>

This enables libvirt to select the correct qemu binary (qemu-system-ppc64)
for a guest vm based on arch 'ppc64'.
Also, libvirt is enabled to correctly parse the list of supported PowerPC
CPUs, generated by running 'qemu-system-ppc64 -cpu ?'
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>
Acked-by: NStefan Berger <stefanb@linux.vnet.ibm.com>

 to proc/cpuinfo

This patch creates a new sysfs hierarchy under
tests/nodeinfodata/linux-nodeinfo-sysfs-test-1.
Output files and /proc/cpuinfo files are also respectively added for
both x86 and ppc64.
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>

 /proc/cpuinfo

Libvirt at present depends on /proc/cpuinfo to gather host
details such as CPUs, cores, threads, etc. This is an architecture-
dependent approach. An alternative is to use 'Sysfs', which provides
a platform-agnostic interface to parse host CPU topology.
Signed-off-by: NPrerna Saxena <prerna@linux.vnet.ibm.com>

Since I have commit rights on libvirt-glib, I can also push to
libvirt, Eric Blake told to move my name up to committers to better
reflect reality.

* configure.ac docs/news.html.in libvirt.spec.in: updated for the release
* po/*.po*: fetched localization update and regenerated

https://bugzilla.redhat.com/show_bug.cgi?id=694403 reports that
the specfile is incorrectly checking for a running libvirt-guests
service.  For example,

$ LC_ALL=es_ES chkconfig --list libvirt-guests
libvirt-guests 	  0:desactivado		 1:desactivado	   2:desactivado     3:activo	 4:activo  5:activo	    6:desactivado

will fail to find 5:on, even though it is active.  But chkconfig
already has a mode where you can silently use the exit status to
check for an active service.

* libvirt.spec.in (%post): Use simpler chkconfig options, to avoid
issues with localization.

On RHEL 5, with libxml2-2.6.26, the build failed with:
virsh.c: In function 'vshNodeIsSuperset':
virsh.c:11951: warning: implicit declaration of function 'xmlChildElementCount'

(or if warnings aren't errors, a link failure later on).

* src/util/xml.h (virXMLChildElementCount): New prototype.
* src/util/xml.c (virXMLChildElementCount): New function.
* src/libvirt_private.syms (xml.h): Export it.
* tools/virsh.c (vshNodeIsSuperset): Use it.

When one thread passes the buck to another thread, it uses
virCondSignal to wake up the target thread. The variable
'haveTheBuck' is not updated in a race-free manner when
this occurs. The current thread sets it to false, and the
woken up thread sets it to true. There is a window where
a 3rd thread can come in and grab the buck.

Even if this didn't lead to crashes & deadlocks, this would
still result in unfairness in the buckpassing algorithm.

A better solution is to *never* set haveTheBuck to false
when we're passing the buck. Only set it to false when there
is no further thread waiting for the buck.

* src/rpc/virnetclient.c: Only set haveTheBuck to false
  if no thread is waiting

Commit fd066925 tried to fix
a race condition in

  commit fa959500
  Author: Daniel P. Berrange <berrange@redhat.com>
  Date:   Fri Nov 11 15:28:41 2011 +0000

    Explicitly track whether the buck is held in remote client

Unfortunately there is a second race condition whereby the
event loop can trigger due to incoming data to read. Revert
this fix, so a complete fix for the problem can be cleanly
applied

* src/rpc/virnetclient.c: Revert fd066925

With security_driver set to "none" in /etc/libvirt/qemu.conf,
libvirtd would crash when attempted to attach to an existing
qemu process.  Only copy the security model if it actually exists.

It's referring to virSuspendDomain instead of
virDomainSuspend.

During virDomainDestroy, QEMU may emit SHUTDOWN event as a response to
SIGTERM and since domain object is still locked, the event is processed
after the domain is destroyed. We need to ignore this event in such case
to avoid changing domain state from shutoff to shutdown.

This patch is to expose the fabric_name of fc_host class, which
might be useful for users who wants to known which fabric the
(v)HBA connects to.

The patch also adds the missed capabilities' XML schema of scsi_host,
(of course, with fabric_wwn added), and update the documents
(docs/formatnode.html.in)

Currently if you try to connect to a local libvirtd when
libvirtd is not in $PATH, you'll get an error

  error: internal error invalid use of command API

This is because remoteFindDaemonPath() returns NULL, which
causes us to pass NULL into virNetSocketConnectUNIX which
in turn causes us to pass NULL into virCommandNewArgList.

Adding missing error checks improves this to

  error: internal error Unable to locate libvirtd daemon in $PATH

* src/remote/remote_driver.c: Report error if libvirtd
  cannot be found
* src/rpc/virnetsocket.c: Report error if caller requested
  spawning of daemon, but provided no binary path

* libvirt.spec.in (with_sanlock): On RHEL, don't force sanlock
on architectures where it isn't available.

https://bugzilla.redhat.com/show_bug.cgi?id=754909 complains that
because libvirt didn't require dmidecode, that the logs are noisy
and virConnectGetSysinfo needlessly fails.  Even 'virt-what' requires
dmidecode, so it's not that onerous of a dependency.  We may be
able to drop this in the future when we move to parsing sysfs data,
but for now, listing the dependency will help matters.

* libvirt.spec.in (Requires): Sort Requires before BuildRequires.
Add dmidecode.