While we probably won't see machines with more than 65536 cpus for a
while lets store the cpu count as an integer so that we can avoid quite
a lot of overflow checks in our code.

Since the returned structure uses "unsigned long" for memory sizes add a
few overflow checks to notify the user in case we are not able to
represent given values.

When qemu does not support the balloon event the current memory size
needs to be queried. Since there are two places that implement the same
logic, split it out into a function and reuse.

After libvirt issues the balloon resize command, the current balloon
size needs to be changed to the maximum memory size since the vCPUs were
not started and thus the balloon driver could not return the memory.

Since GetXMLDesc and other APIs return the balloon size without updating
it in case they are not able to obtain the job and the memory balloon
does not support the asynchronous event the sizing might be incorrect.

We have been formatting the first serial device also
as a console device, but only if there were no other consoles.

If there is a <serial> device present in the XML, but no serial
<console>, or if there isn't any <console> at all but the domain
definition hasn't gone through a parse->format->parse round-trip,
the <console> device would not be formatted.

Change the code to always add the stub device for the first
serial device.

Fixes https://bugzilla.redhat.com/show_bug.cgi?id=1089914

Also remove the redudant apostrophe from "it's".

Console/channel devices have their pty devices assigned when the emulator is
actually started. If time is spent in guest preparation, someone attempts
to open the console/channel, the libvirt crashes in virChrdevLockFilePath().
The patch attempts to fix the crash by adding a check before attempting to
open.
Signed-off-by: NShivaprasad G Bhat <sbhat@linux.vnet.ibm.com>

There was a couple of problems with the style fixes applied to the original
patch:

1.) virFileReadAllQuiet comparison was incorrectly parenthesized when moved
into a condition, causing the len to be set to the result of comparison. This,
together with the removed underflow check would underflow the phy buffer.

2.) The logic was broken. Failure to call "ip" would abort the function, thus
the "iw" branch would never be reached.

This aims to fix the issues and work around possible style complains :)
Signed-off-by: NLubomir Rintel <lkundrak@v3.sk>

Refactor the function to return the bitmap instead of an integer and the
inner workings so that they make more sense.

This patch also fixes possible segfault on old systems that was
introduced by commit:

commit f1a43a8e
Author: Hu Tao <hutao@cn.fujitsu.com>
Date:   Fri Sep 14 15:46:59 2012 +0800

    use virBitmap to store cpu affinity info

Since commit 55ace7c4, the sockettest
fails without VIR_TEST_DEBUG set.  The problem is found by test number
42 (co-incidence?), which tests range '192.168.122.1' -
'192.168.122.255' in network '192.168.122.0/24'.  That is supposed to
fail because the end address is equal to the broadcast address.

When comparing these two in 'virSocketAddrEqual(end, &broadcast)',
there is a check for sin_addr as well as for sin_port.  That port,
however, is different when we do not enable test debugging.  With the
testing enabled, the port is 0 (correctly initialized), but without that
it has a random number there.  And that's because the structure is not
initialized anywhere.

By zeroing the structure before filling in the info, we make sure we
return only the address and not any information that was not requested.
And the test work once again.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

When watching a job (save, managedsave, dump, migrate) virsh spawns a
thread to call the appropriate API and waits for the result while
watching for interruption signals (SIGINT, Ctrl-C on the terminal).
Whenever such signal is caught, virsh calls virDomainAbortJob, stops
waiting for the job, and returns the result of virDomainAbortJob.

This is wrong because the job might have finished in the meantime or it
might have been cancelled by someone else and virsh would just report
the failure to abort the job. However, we are not interested in the
virDomainAbortJob's result at all, we need to keep waiting for the main
job to finish and report its result instead.

https://bugzilla.redhat.com/show_bug.cgi?id=1131755Signed-off-by: NJiri Denemark <jdenemar@redhat.com>

Since the monitor code now supports ullongs when setting balloon size,
drop the legacy code with overflow checking.

Additionally the comment mentioning that the job is treated as a sync
job does not make sense any more since the monitor is entered
asynchronously.

Document the top level function rather than both bottom level ones. It
makes looking the docs up quicker.

Add a macro that will allow to simplify overflow checks and make them
more universal in case data types change.

Reuse the approach in qemuDomainGetVcpuPinInfo.

Libxl's vcpu pinning would work only if the vcpu array was ordered and
was not sparse. Remove the condition and iterate the pinning array
properly.

Get rid of the unnecessary allocation and copying of the bitmap and
clean up some unnecesary temporary variables.

Reuse the function so that we can get rid of a lot of temporary
allocations.

Since some functions can be optimized by reusing the buffers that they
already have instead of allocating and copying new ones, lets split
virBitmapToData to two functions where one only converts the data and
the second one is a wrapper that allocates the buffer if necessary.

Store the emulator pinning cpu mask as a pure virBitmap rather than the
virDomainPinDef since it stores only the bitmap and refactor
qemuDomainPinEmulator to do the same operations in a much saner way.

As a side effect virDomainEmulatorPinAdd and virDomainEmulatorPinDel can
be removed since they don't add any value.

In case when <vcpu ... cpuset=""> is not specified, the vcpupin array is
not guaranteed to be allocated to def->vcpus. This would cause a crash
for TCG since it does not report thread IDs for vCPUs.

We remember driver name in a new field 'drivername' within
private parallels connection structure. When a new domain
is defined we use this name to set corresponding virtType.
We set VIR_DOMAIN_VIRT_VZ for 'vz' driver and
VIR_DOMAIN_VIRT_PARALLELS for 'Parallels'.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

Though parallels:///system is still accepted we will encourage users
to use vz:///system instead.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

We need to do this because we have just added a vz driver.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

We add this connection driver just as an exact copy with different
name to keep backward compatibility.
Vz stands for Virtuozzo, which is a new name of Parallels Cloud Server.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

If 'parallels:///system' uri is specified then connection is made to
'Parallels' driver and domain type will be VIR_DOMAIN_VIRT_PARALLELS.
In case of 'vz:///system' connection is established to 'vz' driver
and domain type will be VIR_DOMAIN_VIRT_VZ.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

As soon as we keep backward compatibility we treat this constant
as synonym to VIR_DOMAIN_VIRT_PARALLELS.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

This new name and constant will be used as substitutions for parallels driver one.
Signed-off-by: NMaxim Nestratov <mnestratov@parallels.com>

Commit id '980b265d' neglected to check for a successful status when
deciding whether to release the device address for the RNG attach thus
the address would be released even though the device was added.
Signed-off-by: NLuyao Huang <lhuang@redhat.com>

Commit id '862473fa' neglected to return the status from the
qemuDomainRemoveRNGDevice call in qemuDomainRemoveDevice causing
the function to always fail when receiving an RNG device unplug
event. Additionally the domain status/state would not be updated
in the processDeviceDeletedEvent path.
Signed-off-by: NLuyao Huang <lhuang@redhat.com>

If the domain has IOThreads defined, then audit the number started
at domain startup time.
Signed-off-by: NLuyao Huang <lhuang@redhat.com>

Newer binutils 'ar' has added an option 'D' for deterministic
builds, and at least on rawhide, this option is enabled by default.
But it conflicts with the 'u' optimization where the linker only
modifies libraries based on file timestamps, but can result in
different library ordering based on which files were touched last.
Thus, it results in some noisy compilation, for every CCLD line:

  CCLD     libvirt_driver_qemu_impl.la
  ar: `u' modifier ignored since `D' is the default (see `U')

Upstream automake has decided that defaulting ARFLAGS to 'cru' is
no longer beneficial, and that switching the default to 'cr' will
both silence the noise and not penalize modern build systems.

https://lists.gnu.org/archive/html/automake-patches/2015-06/msg00000.html

But rather than wait for newer automake to propagate to all systems
that already have newer binutils, we might as well just use the new
default ourselves, even on older platforms.

* configure.ac: Default AR[_]FLAGS to 'cr', not 'cru'.
Signed-off-by: NEric Blake <eblake@redhat.com>

There are now many more reasons that virSocketAddrGetRange() could
fail, so it is much more informative to report the error there instead
of in the caller. (one of the two callers was previously assuming
success, which is almost surely safe based on the parsing that has
already happened to the config by that time, but it still is nicer to
account for an error "just in case")

Part of fix for: https://bugzilla.redhat.com/show_bug.cgi?id=985653

This loop had automatic variable definitions mixed with code. This
patch moves the definitions to the top of the function and puts
cleanup for them at the bottom. No functional change.

Part of fix for: https://bugzilla.redhat.com/show_bug.cgi?id=985653