https://bugzilla.redhat.com/show_bug.cgi?id=830056

Utilize recently added VIR_STORAGE_POOL_CREATE_WITH_BUILD* flags in
order to pass the flags along to the virStoragePoolCreateXML and
virStoragePoolCreate API's.

This affects the 'virsh pool-create', 'virsh pool-create-as', and
'virsh pool-start' commands.  While it could be argued that pool-start
doesn't need the flags, they could prove useful for someone trying to
do one command build --overwrite and start command processing or
essentially starting with a clean slate.

NB:
This patch is loosely based upon code originally authored by Osier
Yang that were not reviewed and pushed, see:

https://www.redhat.com/archives/libvir-list/2012-July/msg00497.html

Although they both are the same now, a future patch will add new options
to pool-create-as. So create a common macro to capture commonality, then
use that in the command specific structure.

Although not currently used in more than one command, it soon will be
so create a common macro to be used in the new command location.

Additionally, add the ".flags = 0," for both to match the expections
of the structure being predefined.

Rather than continually cut/paste the "file" option for pool command
option structures, generate a macro which will commonly define it for
any command.  Then of course use that macro.

Rather than continually cut/paste the "pool" option for pool command
option structures, generate a macro which will commonly define it for
any command.  Then of course use that macro.

https://bugzilla.redhat.com/show_bug.cgi?id=830056

Add flags handling to the virStoragePoolCreate and virStoragePoolCreateXML
API's which will allow the caller to provide the capability for the storage
pool create API's to also perform a pool build during creation rather than
requiring the additional buildPool step. This will allow transient pools
to be defined, built, and started.

The new flags are:

    * VIR_STORAGE_POOL_CREATE_WITH_BUILD
      Perform buildPool without any flags passed.

    * VIR_STORAGE_POOL_CREATE_WITH_BUILD_OVERWRITE
      Perform buildPool using VIR_STORAGE_POOL_BUILD_OVERWRITE flag.

    * VIR_STORAGE_POOL_CREATE_WITH_BUILD_NO_OVERWRITE
      Perform buildPool using VIR_STORAGE_POOL_BUILD_NO_OVERWRITE flag.

It is up to the backend to handle the processing of build flags. The
overwrite and no-overwrite flags are mutually exclusive.

NB:
This patch is loosely based upon code originally authored by Osier
Yang that were not reviewed and pushed, see:

https://www.redhat.com/archives/libvir-list/2012-July/msg01328.html

This function is no longer used outside domain_addr.c

We only support hotplugging SCSI controllers.
The USB and virtio-serial related code was never reachable because
this function was only called for VIR_DOMAIN_CONTROLLER_TYPE_SCSI
controllers.

This reverts commit ee0d97a7 and parts of commits 16db8d2e
and d6d54cd1.

This function calls qemuDomainAttachControllerDevice for SCSI
controllers and reports an error for all other controllers.

Move the error inside qemuDomainAttachControllerDevice and delete this
wrapper.

Add a configure option to disable virt-login-shell build even if lxc is
enabled.

Commit id '71b803ac' assumed that the storage pool source device path
was required for a 'logical' pool. This resulted in a failure to start
a pool without any device path defined.

So, adjust the virStorageBackendLogicalMatchPoolSource logic to
return success if at least the pool name matches the vgs output
when no pool source device path is/are provided.

A closer review of the code shows that for the transition from paused to
running which was supposed to emit the VIR_DOMAIN_EVENT_RESUMED - no event
would be generated. Rather the event is generated when going from running
to running.

Following the 'was_running' boolean shows it is set when the domain obj
is active and the domain obj state is VIR_DOMAIN_RUNNING. So rather than
using was_running to generate the RESUMED event, use !was_running

https://bugzilla.redhat.com/show_bug.cgi?id=1270709

When a volume wipe is successful, perform a volume refresh afterwards to
update any volume data that may be used in future volume commands, such as
volume resize.  For a raw file volume, a wipe could truncate the file and
a followup volume resize the capacity may fail because the volume target
allocation isn't updated to reflect the wipe activity.

It is not used by the caller.

The only caller always passes 0 for the extent start.
Drop the 'extent_start' parameter, as well as the mention of extents
from the function name.

Change off_t extent_length to unsigned long long wipe_len, as well as the
'remain' variable.

We do not need to pass a zero-filled buffer as an argument,
the function can allocate its own.

Return -1:
* on all failures of fdatasync. Instead of propagating -errno
  all the way up to the virStorageVolWipe API, which is documented
  to return 0 or -1.
* after a partial wipe. If safewrite failed, we would re-use the
  non-negative return value of lseek (which should be 0 in this case,
  because that's the only offset we seek to).

MemLock is already used in other modules and, while still an
abbreviation, is not ambiguous.

When the function changes the memory lock limit for the first time,
it will retrieve the current value and store it inside the
virDomainObj for the domain.

When the function is called again, if memory locking is no longer
needed, it will be able to restore the memory locking limit to its
original value.

We increase the limit before plugging in a PCI hostdev or a memory
module because some memory might need to be locked due to eg. VFIO.

Of course we should do the opposite after unplugging a device: this
was already the case for memory modules, but not for PCI hostdevs.

Replace all uses of the qemuDomainRequiresMlock/virProcessSetMaxMemLock
combination with the equivalent qemuDomainAdjustMaxMemLock() call.

This function detects whether a domain needs RLIMIT_MEMLOCK
to be set, and if so, uses an appropriate value.

This function can be used to retrieve the current locked memory
limit for a process, so that the setting can be later restored.

Add a configure check for getrlimit(), which we now use.

The prlimit() function allows both getting and setting limits for
a process; expose the same functionality in our wrapper.

Add the const modifier for new_limit, in accordance with the
prototype for prlimit().

Cygwin cannot build the vbox driver yet:

  CC       vbox/libvirt_driver_vbox_impl_la-vbox_glue.lo
In file included from vbox/vbox_glue.c:27:0:
vblox/vbox_XPCOMCGlue.c:63:3: error: #error "Port me"
 # error "Port me"
   ^
In file included from vbox/vbox_XPCOMCGlue.c:45:0,
                 from vbox/vbox_glue.c:27:
vbox/vbox_XPCOMCGlue.c: In function 'tryLoadOne':
vbox/vbox_XPCOMCGlue.c:98:46: error: 'DYNLIB_NAME' undeclared (first use in this function)
         if (virAsprintf(&name, "%s/%s", dir, DYNLIB_NAME) < 0)
	                                      ^
./util/virstring.h:245:31: note: in definition of macro 'virAsprintf'
                         strp, __VA_ARGS__)
			       ^

Rather than trying to figure out how to get dynamic loading of
vbox to work under cygwin (since I don't even have a working vbox
setup to test whether it works), I'm going to be lazy and just
default to not even trying vbox on cygwin.

In commit 686eb7a2, the break was not considered part of the
condition, hence breaking after first node when searching.
Signed-off-by: NMartin Kletzander <mkletzan@redhat.com>

Instead of replicating the information (domain, bus, slot, function)
inside the virPCIDevice structure, use the already-existing
virPCIDeviceAddress structure.

For users of the module, this means that the object returned by
virPCIDeviceGetAddress() can no longer be NULL and must no longer
be freed by the caller.

Upstream Xen is in the process of splitting the (stable API) xtl_*
interfaces out from the (unstable API) libxenctrl library and into a
new (stable API) libxentoollog.

In order to be compatible with Xen both before and after this
transition check for xtl_createlogger_stdiostream in a libxentoollog
library and use it if present. If it is not present assume it is in
libxenctrl.

Compile tested on Xen 4.6 and a development tree with the split in
place.
Signed-off-by: NIan Campbell <ian.campbell@citrix.com>

Introduces support for domainGetJobStats which has the same
info as domainGetJobInfo but in a slightly different format.
Another difference is that virDomainGetJobStats can also
retrieve info on the most recently completed job. Though so
far this is only used in the source node to know if the
migration has been completed. But because we don't support
completed jobs we will deliver an error.
Signed-off-by: NJoao Martins <joao.m.martins@oracle.com>

Introduce support for domainGetJobInfo to get info about the
ongoing job. If the job is active it will update the
timeElapsed which is computed with the "started" field added to
struct libxlDomainJobObj.  For now we support just the very basic
info and all jobs have VIR_DOMAIN_JOB_UNBOUNDED (i.e. no completion
time estimation) plus timeElapsed computed.

Openstack Kilo uses the Job API to monitor live-migration
progress which is currently nonexistent in libxl driver and
therefore leads to a crash in the nova compute node. Right
now, migration doesn't use jobs in the source node and will
return VIR_DOMAIN_JOB_NONE. Though nova handles this case and
will migrate it properly instead of crashing.
Signed-off-by: NJoao Martins <joao.m.martins@oracle.com>

https://bugzilla.redhat.com/show_bug.cgi?id=1025230

Add a new helper virStorageBackendLogicalMatchPoolSource to compare the
pool's source name against the output from a 'pvs' command to list all
volume group physical volume data on the host.  In addition, compare the
pool's source device list against the particular volume group's device
list to ensure the source device(s) listed for the pool match what the
was listed for the volume group.

Then for pool startup or check API's we need to call this new API in
order to ensure that the pool we're about to start or declare active
during checkPool has a valid definition vs. the running host.

Rework virStorageBackendLogicalFindPoolSources a bit to create a
helper virStorageBackendLogicalGetPoolSources that will make the
pvs call in order to generate a list of associated pv_name and vg_name's.

A future patch will make use of this for start/check processing to
ensure the storage pool source definition matches expectations.

https://bugzilla.redhat.com/show_bug.cgi?id=1025230

When determining whether a FS pool is mounted, rather than assuming that
the FS pool is mounted just because the target.path is in the mount list,
let's make sure that the FS pool source matches what is mounted

Refactor code to use standard return functioning with respect to setting
a ret value and going to cleanup.

Refactor the code that builds the pool source string during the FS
storage pool mount to be a separate helper.

A future patch will use the helper in order to validate the mounted
FS matches the pool's expectation during poolCheck processing

when appropriate, of course. If the config for a domain specifies boot
order with <boot dev='blah'/> elements, e.g.:

     <os>
       ...
       <boot dev='hd'/>
       <boot dev='network'/>
     </os>

Then the first disk device in the config will have ",bootindex=1"
appended to its qemu commandline -device options, and the first (and
*only* the first) network interface device will get ",bootindex=2".

However, if the first network interface device is a "hostdev" device
(an SRIOV Virtual Function (VF) being assigned to the domain with
vfio), then the bootindex option will *not* be appended. This happens
because the bootindex=n option corresponding to the order of "<boot
dev='network'/>" is added to the -device for the first network device
when network device commandline args are constructed, but if it's a
hostdev network device, its commandline arg is instead constructed in
the loop for hostdevs.

This patch fixes that omission by noticing (in bootHostdevNet) if the
first network device was a hostdev, and if so passing on the proper
bootindex to the commandline generator for hostdev devices - the
result is that ",bootindex=2" will be properly appended to the first
"network" device in the config even if it is really a hostdev
(including if it is assigned from a libvirt network pool). (note that
this is only the case if there is no <bootmenu enabled='yes'/> element
in the config ("-boot menu-on" in qemu) , since the two are mutually
exclusive - when the bootmenu is enabled, the individual per-device
bootindex options can't be used by qemu, and we revert to using "-boot
order=xyz" instead).

If a greater level of control over boot order is desired (e.g., more
than one network device should be tried, or a network device other
than the first one encountered in the config), then <boot
dev='network'/> in the <os> element should not be used; instead, the
individual device elements in the config should be given a "<boot
order='n'/>

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1278421

Many of the functions follow the pattern:
virSecurity.*Security.*Label

Remove the second 'Security' from the names, it should be
obvious that the virSecurity* functions deal with security
labels even without it.

Many of the functions follow the pattern:
virSecurity.*Security.*Label

Remove the second 'Security' from the names, it should be obvious
that the virSecurity* functions deal with security labels even
without it.

Many of the functions follow the pattern:
virSecurity.*Security.*Label

Remove the second 'Security' from the names, it should be obvious
that the virSecurity* functions deal with security labels even
without it.

Commit 256496e1 introduced a detection if "is locked" in error replay
from qemu monitor. Commit c4073657 fixed a memory leak, but it was
pointed out by Peter, that this could be done cleaner without
stringifing the replay.
Signed-off-by: NPavel Hrdina <phrdina@redhat.com>