Commit Graph

14970 Commits

Author SHA1 Message Date
John Ferlan
136f17efd1 nodeinfo: Check for SYSFS_INFINIBAND_DIR before open
Commit id 'ac3ed2085' causes 'virsh nodedev-list --cap net' to fail
on any system without SYSFS_INFINIBAND_DIR (/sys/class/infiniband).

Rather than assume it's there and fail on the attempt to open the
non-existent directory, check if it's there - if not, return
success and move on. Also fix caller to check < 0 upon return.

As reported by Suren Hajyan <shajyan@redhat.com> from run of unit tests
2015-07-24 09:41:06 -04:00
Cao jin
c1c5eb6fad fix typo in qemu_monitor
Signed-off-by: Cao jin <caoj.fnst@cn.fujitsu.com>
2015-07-24 14:29:34 +02:00
Martin Kletzander
a5bdb8459a Revert "qemu: Use heads parameter for QXL driver"
This reverts commit 7b401c3bda.

Until libvirt is able to differentiate whether heads='1' is just a
leftover from previous libvirt or whether that's added by user on
purpose and also whether the domain was started with the support for
qxl's max_outputs, we cannot incorporate this patch into the tree
due to compatibility reasons.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-24 13:06:47 +02:00
Luyao Huang
b70b5ff41a test: introduce a function in test driver to check get vcpupin info
As there is a regression in use vcpupin get info, introduce a new function
to test the virsh client.

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-24 06:49:54 -04:00
Laine Stump
03b6bdcab3 conf: reorganize virNetworkDHCPDefParseXML
This makes the range and static host array management in
virNetworkDHCPDefParseXML() more similar to what is done in
virNetworkDefUpdateIPDHCPRange() and virNetworkDefUpdateIPDHCPHost() -
they use VIR_APPEND_ELEMENT rather than a combination of
VIR_REALLOC_N() and separate incrementing of the array size.

The one functional change here is that a memory leak of the contents
of the last (unsuccessful) virNetworkDHCPHostDef was previously leaked
in certain failure conditions, but it is now properly cleaned up.
2015-07-23 16:38:08 -04:00
Andrea Bolognani
f86c45ca0c nodeinfo: Check for errors when reading core_id 2015-07-23 12:01:19 +02:00
Roman Bogorodskiy
6cb9ef1bab bhyve: add UTC clock support
Bhyve as of r279225 (FreeBSD -CURRENT) or r284894 (FreeBSD 10-STABLE)
supports using UTC time offset via the '-u' argument to bhyve(8). By
default it's still using localtime.

Make the bhyve driver use UTC clock if it's requested by specifying
<clock offset='utc'> in domain XML and if the bhyve(8) binary supports
the '-u' flag.
2015-07-22 19:05:09 +03:00
Roman Bogorodskiy
830344d6e7 netdev: fix build on FreeBSD
Commit ac3ed20 breaks build on FreeBSD with:

  CC       util/libvirt_util_la-virnetdev.lo
util/virnetdev.c:2967:1: error: unused function 'virNetDevRDMAFeature' [-Werror,-Wunused-function]
virNetDevRDMAFeature(const char *ifname,
^

So hide virNetDevRDMAFeature function under the #ifdef 'SIOCETHTOOL'
and 'HAVE_STRUCT_IFREQ' section.

Pushed under the build breaker rule.
2015-07-22 18:37:00 +03:00
Luyao Huang
704cf06a14 qemu: fix the error cover issue in SetMemoryParameters
https://bugzilla.redhat.com/show_bug.cgi?id=1245476

We won't return the errno after commit 0d7f45ae, and
the more clearly error will be set in the code in vircgroup*.
Also We will always report error "Operation not permitted",
because the return is -1.

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-22 11:02:17 +02:00
Andrea Bolognani
6395ec1cf0 nodeinfo: Calculate present and online CPUs only once
Move the calls to the respective functions from virNodeParseNode(),
which is executed once for every NUMA node, to
linuxNodeInfoCPUPopulate(), which is executed just once per host.
2015-07-22 10:50:53 +02:00
Andrea Bolognani
05be606282 nodeinfo: Use a bitmap to keep track of node CPUs
Keep track of what CPUs belong to the current node while walking
through the sysfs node entry, so we don't need to do it a second
time immediately afterwards.

This also allows us to loop through all CPUs that are part of a
node in guaranteed ascending order, which is something that is
required for some upcoming changes.
2015-07-22 10:37:25 +02:00
Andrea Bolognani
b909e9fb2c nodeinfo: Use nodeGetOnlineCPUBitmap() when parsing node
No need to look up the online status of each CPU separately when we
can get all the information in one go.
2015-07-22 10:37:20 +02:00
Andrea Bolognani
b7b506475c nodeinfo: Phase out cpu_set_t usage
Swap out all instances of cpu_set_t and replace them with virBitmap,
which some of the code was already using anyway.

The changes are pretty mechanical, with one notable exception: an
assumption has been added on the max value we can run into while
reading either socket_it or core_id.

While this specific assumption was not in place before, we were
using cpu_set_t improperly by not making sure not to set any bit
past CPU_SETSIZE or explicitly allocating bigger bitmaps; in fact
the default size of a cpu_set_t, 1024, is way too low to run our
testsuite, which includes core_id values in the 2000s.
2015-07-22 10:14:02 +02:00
Andrea Bolognani
c1df42d734 nodeinfo: Rename nodeGetCPUBitmap() to nodeGetOnlineCPUBitmap()
The new name makes it clear that the returned bitmap contains the
information about which CPUs are online, not eg. which CPUs are
present.

No behavioral change.
2015-07-22 10:14:02 +02:00
Andrea Bolognani
ccd0ea7ef5 nodeinfo: Remove out parameter from nodeGetCPUBitmap()
Not all users of this API will need the size of the returned
bitmap; those who do can simply call virBitmapSize() themselves.
2015-07-22 10:14:01 +02:00
Andrea Bolognani
37f73e4ad5 nodeinfo: Add old kernel compatibility to nodeGetPresentCPUBitmap()
If the cpu/present file is not available, we assume that the kernel
is too old to support non-consecutive CPU ids and return a bitmap
with all the bits set to represent this fact. This assumption is
already exploited in nodeGetCPUCount().

This means users of this API can expect the information to always
be available unless an error has occurred, and no longer need to
treat the NULL return value as a special case.

The error message has been updated as well.
2015-07-22 10:14:01 +02:00
Andrea Bolognani
a2e2add1f1 nodeinfo: Rename linuxParseCPUmax() to linuxParseCPUCount()
The original name was confusing because the function returns the number
of CPUs, not the maximum CPU id. The comment above the function has
been updated to reflect this.

No behavioral changes.
2015-07-22 10:14:01 +02:00
Andrea Bolognani
6fecc4017d nodeinfo: Introduce linuxGetCPUOnlinePath() 2015-07-22 10:14:01 +02:00
Andrea Bolognani
bd87f07c25 nodeinfo: Introduce linuxGetCPUGlobalPath()
This is just a more generic version of linuxGetCPUPresentPath(),
which is now implemented by calling the new function appropriately.
2015-07-22 10:14:01 +02:00
Andrea Bolognani
2a6801892a nodeinfo: Fix nodeGetCPUBitmap()'s fallback code path
During the recent refactoring/cleanups, a bug has been introduced
that caused all CPUs to be reported as online unless the sysfs
cpu/present file was available.

This commit fixes the fallback code path by building the directory
path passed to virNodeGetCpuValue() correctly.
2015-07-22 09:57:57 +02:00
Andrea Bolognani
c30ae1864f nodeinfo: Add nodeGetPresentCPUBitmap() to libvirt_private.syms 2015-07-22 09:57:57 +02:00
Peter Krempa
88f6c007c3 cgroup: Drop resource partition from virSystemdMakeScopeName
The scope name, even according to our docs is
"machine-$DRIVER\x2d$VMNAME.scope" virSystemdMakeScopeName would use the
resource partition name instead of "machine-" if it was specified thus
creating invalid scope paths.

This makes libvirt drop cgroups for a VM that uses custom resource
partition upon reconnecting since the detected scope name would not
match the expected name generated by virSystemdMakeScopeName.

The error is exposed by the following log entry:

debug : virCgroupValidateMachineGroup:302 : Name 'machine-qemu\x2dtestvm.scope' for controller 'cpu' does not match 'testvm', 'testvm.libvirt-qemu' or 'machine-test-qemu\x2dtestvm.scope'

for a "/machine/test" resource and "testvm" vm.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1238570
2015-07-22 07:12:56 +02:00
Peter Krempa
eae59247c5 qemu: Update state of block job to READY only if it actually is ready
Few parts of the code looked at the current progress of and assumed that
a two phase blockjob is in the _READY state as soon as the progress
reached 100% (info.cur == info.end). In current versions of qemu this
assumption is invalid and qemu exposes a new flag 'ready' in the
query-block-jobs output that is set to true if the job is actually
finished.

This patch adds internal data handling for reading the 'ready' flag and
acting appropriately as long as the flag is present.

While this still doesn't fix the virsh client problem with two phase
block jobs and the --pivot option, it at least improves the error
message:

$ virsh blockcommit  --wait --verbose vm vda  --base vda[1] --active --pivot
Block commit: [100 %]error: failed to pivot job for disk vda
error: internal error: unable to execute QEMU command 'block-job-complete': The active block job for device 'drive-virtio-disk0' cannot be completed

to

$ virsh blockcommit  --wait --verbose VM vda  --base vda[1] --active --pivot
Block commit: [100 %]error: failed to pivot job for disk vda
error: block copy still active: disk 'vda' not ready for pivot yet
2015-07-21 15:32:59 +02:00
Moshe Levi
ac3ed2085f nodedev: add RDMA and tx-udp_tnl-segmentation NIC capabilities
Adding functionality to libvirt that will allow
it query the interface for the availability of RDMA and
tx-udp_tnl-segmentation Offloading NIC capabilities

Here is an example of the feature XML definition:

<device>
<name>net_eth4_90_e2_ba_5e_a5_45</name>
  <path>/sys/devices/pci0000:00/0000:00:03.0/0000:08:00.1/net/eth4</path>
  <parent>pci_0000_08_00_1</parent>
  <capability type='net'>
    <interface>eth4</interface>
    <address>90:e2:ba:5e:a5:45</address>
    <link speed='10000' state='up'/>
    <feature name='rx'/>
    <feature name='tx'/>
    <feature name='sg'/>
    <feature name='tso'/>
    <feature name='gso'/>
    <feature name='gro'/>
    <feature name='rxvlan'/>
    <feature name='txvlan'/>
    <feature name='rxhash'/>
    <feature name='rdma'/>
    <feature name='txudptnl'/>
    <capability type='80203'/>
  </capability>
</device>
2015-07-21 07:08:35 -04:00
Roman Bogorodskiy
e46791e003 nodeinfo: fix build on FreeBSD
Currently, build fails on FreeBSD with:

  CC       libvirt_driver_la-nodeinfo.lo
nodeinfo.c:1941:56: error: use of undeclared identifier 'SYSFS_SYSTEM_PATH'
    const char *prefix = sysfs_prefix ? sysfs_prefix : SYSFS_SYSTEM_PATH;
                                                       ^
1 error generated.

This is caused by commit b97b3048 that added sysfs_prefix to
nodeCapsInitNUMA and used SYSFS_CPU_PATH.

Fix it by unconditionally defining SYSFS_CPU_PATH instead of defining it
under #ifdef __linux__.
2015-07-20 14:01:49 +03:00
Martin Kletzander
717c99f360 qemu: Reject updating unsupported disk information
If one calls update-device with information that is not updatable,
libvirt reports success even though no data were updated.  The example
used in the bug linked below uses updating device with <boot order='2'/>
which, in my opinion, is a valid thing to request from user's
perspective.  Mainly since we properly error out if user wants to update
such data on a network device for example.

And since there are many things that might happen (update-device on disk
basically knows just how to change removable media), check for what's
changing and moreover, since the function might be usable in other
drivers (updating only disk path is a valid possibility) let's abstract
it for any two disks.

We can't possibly check for everything since for many fields our code
does not properly differentiate between default and unspecified values.
Even though this could be changed, I don't feel like it's worth the
complexity so it's not the aim of this patch.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1007228
2015-07-20 11:35:54 +02:00
Martin Kletzander
0aa81bbdc3 Escape left brace as new perl suggests
After upgrade to perl-5.22.0, it started complaining about one of our
scripts.  The thing is that even though it works, it wants all curly
brackets escaped properly.  The change is not functional, it merely gets
rid of the following error:

  Unescaped left brace in regex is deprecated, passed through in regex;
  marked by <-- HERE in m/^enum { <-- HERE / at -e line 3.

There is one more error like this that I'm getting, but it is because of
GNU automake bug #21001:

  https://debbugs.gnu.org/cgi/bugreport.cgi?bug=21001

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-20 10:35:18 +02:00
Frediano Ziglio
7b401c3bda qemu: Use heads parameter for QXL driver
Allows to specify maximum number of head to QXL driver.

Actually can be a compatiblity problem as heads in the XML configuration
was set by default to '1'.

Signed-off-by: Frediano Ziglio <fziglio@redhat.com>
2015-07-20 10:35:18 +02:00
Christophe Fergeau
60d5ed8c52 storage: Fix pool building when directory already exists
Currently, when trying to virsh pool-define/virsh pool-build a new
'dir' pool, if the target directory already exists, virsh
pool-build/virStoragePoolBuild will error out. This is a change of
behaviour compared to eg libvirt 1.2.13

This is caused by the wrong type being used for the dir_create_flags
variable in virStorageBackendFileSystemBuild , it's defined as a bool
but is used as a flag bit field so should be unsigned int (this matches
the type virDirCreate expects for this variable).

This should fix https://bugzilla.gnome.org/show_bug.cgi?id=752417 (GNOME
Boxes) and https://bugzilla.redhat.com/show_bug.cgi?id=1244080
(downstream virt-manager).
2015-07-17 15:24:18 +02:00
Daniel P. Berrange
406ee8c226 rpc: ensure daemon is spawn even if dead socket exists
The auto-spawn code would originally attempt to spawn the
daemon for both ENOENT and ECONNREFUSED errors from connect().
The various refactorings eventually lost this so we only
spawn the daemon on ENOENT. The result is if the daemon exits
uncleanly, so that the socket is left in the filesystem, we
will never be able to auto-spawn the daemon again.
2015-07-17 12:46:43 +01:00
Michal Privoznik
54012746ae viraccessperm.h: Fix some typos
Like s/authoriation/authorization/ and s/requries/requires/

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-07-17 09:41:31 +02:00
John Ferlan
279238fea3 rbd: Return error from rbd_create for message processing
Resolving an error reporting bug introduced by commit id '761491e' which
just took the return of virStorageBackendRBDCreateImage and used it as
the basis for the message generated. This would generate EPERM regardless
of error seen.
2015-07-16 12:31:25 -04:00
Wido den Hollander
045cac32fd rbd: Use RBD format 2 by default when creating images.
We used to look at the librbd code version and depending on that
we would invoke rbd_create3() or rbd_create().

Since librbd version 0.67.9 we can however tell RBD that it should
create rbd format 2 images even if we invoke rbd_create().

The less options we pass to librbd, the more we can lean on the sane
defaults it uses.

For rbd_create3() we had things like the stripe count and unit hardcoded
in libvirt and that might cause problems down the road.

Signed-off-by: Wido den Hollander <wido@widodh.nl>
2015-07-16 12:31:20 -04:00
Boris Fiuczynski
d01b7c7854 qemu: Make virtio-9p-ccw the default for s390-ccw-virtio machines
For s390-ccw-virtio machines the default bus type is set to ccw.
Specifing an address element allows to override the default.

Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@us.ibm.com>
Reviewed-by: Stefan Zimmermann <stzi@linux.vnet.ibm.com>
2015-07-15 14:37:30 +02:00
Boris Fiuczynski
56f6de93b5 qemu: Support for virtio-9p-ccw
Adding the recently in qemu added 9pfs support for virtio-ccw.

Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Jason J. Herne <jjherne@us.ibm.com>
Reviewed-by: Stefan Zimmermann <stzi@linux.vnet.ibm.com>
2015-07-15 14:37:30 +02:00
Michal Privoznik
cd043390ff qemuMigrationRun: Don't leak @fd
If we are migrating to an UNIX socket, we accept() a connection
from qemu and use that FD to set up a tunnel. However, the FD is
not closed as often as it should be.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-07-15 11:40:41 +02:00
Cédric Bosdonnat
4749fec10d lxc: wait for nbd device to be up to get its PIDs
The nbd device pid file doesn't appear immediately after starting
qemu-nbd: adding a small loop to wait for it before getting it's
processes PIDs.
2015-07-15 10:16:15 +02:00
Cédric Bosdonnat
8dd8df6f7c Fix qemu-nbd cleanup crashes
The virLXCControllerAppendNBDPids function didn't properly initialize
pids and npids. In case of failure it was crashing when freeing those.
2015-07-15 10:16:14 +02:00
Andrea Bolognani
aa6c3fee86 nodeinfo: Formatting changes 2015-07-14 17:11:36 -04:00
Andrea Bolognani
75f6f54546 nodeinfo: Make sysfs_prefix usage more consistent
Make sure sysfs_prefix, when present, is always the first argument
to a function; don't use a different name to refer to it; check
whether it is NULL, and hence SYSFS_SYSTEM_PATH should be used, only
when using it directly and not just passing it down to another
function; always pass down the same value we've been passed when
calling another function.
2015-07-14 17:11:36 -04:00
Peter Krempa
c212e0c779 qemu: process: Improve update of maximum balloon state at startup
In commit 641a145d73 I've added code that
resets the balloon memory value to full size prior to resuming the vCPUs
since the size certainly was not reduced at that point.

Since qemuProcessStart is used also in code paths with already booted
up guests (migration, save/restore) the assumption is not entirely true
since the guest might already been running before.

This patch adds a function that queries the monitor rather than using
the full size since a balloon event would not be reissued in case we are
recovering a saved migration state.

Additionally the new function is used also when reconnecting to a VM
after libvirtd restart since we might have missed a few balloon events
while libvirtd was not running.
2015-07-14 14:47:57 +02:00
Michal Privoznik
1cf25f6334 qemuDomainSetNumaParamsLive: Check for NUMA mode more wisely
https://bugzilla.redhat.com/show_bug.cgi?id=1232663

In one of my previous ptaches (bcd9a564) I've tried to fix the problem
that we blindly assumed strict NUMA mode for guests. This led to
several problems like us pinning a domain onto a nodeset via libnuma
among with CGroups. Once the nodeset was changed by user, well, it did
not result in desired effect. See the original commit for more info.
But, the commit I wrote had a bug: when NUMA parameters are changed on
a running domain we require domain to be strictly pinned onto a
nodeset. Due to a typo a condition was mis-evaluated.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-07-14 10:29:19 +02:00
Martin Kletzander
0e3ad241f3 network: Add another collision check into networkCheckRouteCollision
The comment above that function says: "This function can be a lot more
exhaustive, ...", so let's be.

Check for collisions between routes in the system and static routes
being added explicitly from the <route/> element of the network XML.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1094205

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-14 09:56:44 +02:00
Martin Kletzander
0f10eb6a28 conf: Add getter for network routes
Add virNetworkDefGetRouteByIndex() similarly to
virNetworkDefGetIpByIndex(), but for routes.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-14 08:04:49 +02:00
Kothapally Madhu Pavan
bb31f4532b nodeinfo: fix to parse present cpus rather than possible cpus
This patch resolves a situation where a core is defective and is not
in the present mask during boot. Optionally a host can have empty sockets
could be brought online if the socket is added. In this case the present
mask contains the cpu's that are actually there in the sockets even though
they might be offline for some reason. This patch excludes the cpu's that
are offline because the socket is defective/empty by checking the present
mask before reading the cpu directory. Otherwise, the nodeinfo on such
hosts always displays wrong output which includes the defective/empty
sockets as set of offline cpu's.

Signed-off-by: Kothapally Madhu Pavan <kmp@linux.vnet.ibm.com>
2015-07-13 16:07:44 -04:00
John Ferlan
c71f0654fc nodeinfo: Add sysfs_prefix to nodeGetMemoryStats
Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_SYSTEM_PATH.
2015-07-13 15:59:32 -04:00
John Ferlan
b97b30480d nodeinfo: Add sysfs_prefix to nodeCapsInitNUMA
Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_CPU_PATH which is a
derivative of SYSFS_SYSTEM_PATH

Use cpupath for nodeCapsInitNUMAFake and remove SYSFS_CPU_PATH
2015-07-13 15:59:32 -04:00
John Ferlan
29e4f2243f nodeinfo: Add sysfs_prefix to nodeGetInfo
Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_SYSTEM_PATH.
2015-07-13 15:59:32 -04:00
John Ferlan
f1c6179f0d nodeinfo: Add sysfs_prefix to nodeGetCPUMap
Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_SYSTEM_PATH.
2015-07-13 15:59:32 -04:00
John Ferlan
f220a3e5a8 nodeinfo: Add sysfs_prefix to nodeGetCPUBitmap
Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_SYSTEM_PATH.
2015-07-13 15:59:32 -04:00
John Ferlan
51281dcb90 nodeinfo: Add sysfs_prefix to nodeGetPresentCPUBitmap
Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_SYSTEM_PATH.
2015-07-13 15:59:32 -04:00
John Ferlan
f1a43a0f91 nodeinfo: Add sysfs_prefix to nodeGetCPUCount
Add the sysfs_prefix argument to the call to allow for setting the
path for tests to something other than SYSFS_SYSTEM_PATH.
2015-07-13 15:59:32 -04:00
John Ferlan
3119e05e26 nodeinfo: Introduce local linuxGetCPUPresentPath
The API will print the path to the /cpu/present file using the sysfs_prefix.

NB: This is setup for future patches which will allow local/test sysfs paths.
2015-07-13 15:59:32 -04:00
Michal Privoznik
45cc2fca5c qemuProcessHandleMigrationStatus: Update migration status more frequently
After Jirka's migration patches libvirt is listening on migration
events from qemu instead of actively polling on the monitor. There is,
however, a little regression (introduced in 6d2edb6a42). The
problem is, the current status of migration job is updated in
qemuProcessHandleMigrationStatus if and only if migration job was
started. But eventually every asynchronous job may result in
migration. Therefore, since this job is not strictly a
migration job, internal state was not updated and later checks failed:

  virsh # save fedora22 /tmp/fedora22_ble.save
  error: Failed to save domain fedora22 to /tmp/fedora22_ble.save
  error: operation failed: domain save job: is not active

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2015-07-13 15:07:12 +02:00
Jim Fehlig
4ffb21c89a libxl: set dom0 state to running
Commit 45697fe5 added dom0 to driver->domains, but missed
setting its state to 'running'

$ virsh list
 Id    Name                           State
----------------------------------------------------
 0     Domain-0                       shut off
2015-07-10 11:36:57 -06:00
Dmitry Guryanov
f6d908a2f3 vz: fix cleanup of nets of bridged type
We create a virtual network of special type, which
has the same name as bridge name to create bridged
network adapter in vz. So when we delete such an
adapter we have to remove corresponding virtual
network.

So let's rename prlsdkDelNet to prlsdkCleanupBridgedNet
and don't check for return value.

Signed-off-by: Dmitry Guryanov <dguryanov@parallels.com>
2015-07-10 16:37:57 +03:00
Jiri Denemark
2e7cea2435 qemu: Use error from Finish instead of "unexpectedly failed"
When QEMU exits on destination during migration, the source reports
either success (if the failure happened at the very end) or unhelpful
"unexpectedly failed" error message. However, the Finish API called on
the destination may report a real error so let's use it instead of the
generic one.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-10 11:47:13 +02:00
Jiri Denemark
44c42b564d qemu: Don't report false error from MigrateFinish
virDomainMigrateFinish* APIs were unfortunately designed to return the
pointer to the domain on destination and NULL on error. This looks OK in
normal cases but the same API is also called when we know migration
failed and thus we expect Finish to return NULL even if it actually did
all it was supposed to do without any error. The call is defined to
return nonnull domain pointer over RPC, which means returning NULL will
always result in an error being send. If this was not in fact an error,
the API itself wouldn't set anything to the thread local virError, which
makes the RPC layer come up with it's own "Library function returned
error but did not set virError" error.

This is quite confusing and also hard to detect by the caller. This
patch adds a special error code which can be used to check that Finish
successfully aborted migration.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-10 11:47:13 +02:00
Jiri Denemark
e68f395fcb qemu: Remember incoming migration errors
If QEMU fails during incoming migration, the domain disappears including
a possibly useful error message read from QEMU log file. Let's remember
the error in virQEMUDriver so that Finish can report more than just "no
such domain".

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-10 11:47:13 +02:00
Jiri Denemark
9d0a2af6c2 Introduce virErrorCopyNew
A helper function for copying error objects.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-10 11:47:13 +02:00
Jiri Denemark
a7c22a1f29 Introduce virHashAtomic
This is a self-locking wrapper around virHashTable. Only a limited set
of APIs are implemented now (the ones which are used in the following
patch) as more can be added on demand.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-10 11:47:13 +02:00
Jiri Denemark
1cd70869d9 cpu: Add support for MPX and AVX512 Intel features
Corresponding QEMU commits:
    MPX     79e9ebebbf2a00c46fcedb6dc7dd5e12bbd30216
    AVX512  9aecd6f8aef653cea58932f06a2740299dbe5fd3

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-10 11:47:13 +02:00
Cédric Bosdonnat
24f3c2f7e0 virt-aa-helper: add DomainGuest to mockup caps
With commit 3f9868a virt-aa-helper stopped working due to missing
DomainGuest in the caps.

The test with -c without arch also needs to be
removed since the new capabilities code uses the host arch when none is
provided.
2015-07-10 11:30:36 +02:00
Cédric Bosdonnat
61dab0f74e virt-aa-helper: rename ctl->hvm to ctl->os
ctl->hvm contains os.type string value, change the name to reflect it.
2015-07-10 11:30:36 +02:00
Cédric Bosdonnat
a55a5e7cfe Get more libvirt errors from virt-aa-helper
Initializing libvirt log in virt-aa-helper and getting it to output
libvirt log to stderr. This will help debugging problems happening in
libvirt functions called from within virt-aa-helper
2015-07-10 11:30:36 +02:00
Cédric Bosdonnat
e44bcae9f0 virt-aa-helper: fix rules for paths with trailing slash
Rules generated for a path like '/' were having '//' which isn't
correct for apparmor. Make virt-aa-helper smarter to avoid these.
2015-07-10 11:30:36 +02:00
Martin Kletzander
b7ea58c262 rpc: Rework timerActive logic in daemon
Daemon used false logic for determining whether there were any clients.
When the timer was inactive, it was activated if at least one of the
servers did not have clients.  So the bool was being flipped there and
back all the time in case there was one client, for example.

Initially introduced by fa14207368.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1240283

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-10 11:13:29 +02:00
Martin Kletzander
699faeacb1 rpc: Add virNetDaemonHasClients
So callers don't have to iterate over each server.

Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
2015-07-10 10:50:22 +02:00
Peter Krempa
780fe4e4ba qemu: Check duplicate WWNs also for hotplugged disks
In commit 714b38cb23 I tried to avoid
having two disks with the same WWN in a VM. I forgot to check the
hotplug paths though which make it possible bypass that check. Reinforce
the fix by checking the wwn when attaching the disk.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1208009
2015-07-10 09:13:22 +02:00
Prerna Saxena
dd519a294b Fix cloning of raw, sparse volumes
When virsh vol-clone is attempted on a raw file where capacity > allocation,
the resulting cloned volume has a size that matches the virtual-size of
the parent; in place of matching its actual, disk size.
This patch fixes the cloned disk to have same _allocated_size_ as
the parent file from which it was cloned.

Ref: http://www.redhat.com/archives/libvir-list/2015-May/msg00050.html

Also fixes: https://bugzilla.redhat.com/show_bug.cgi?id=1130739

Signed-off-by: Prerna Saxena <prerna@linux.vnet.ibm.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
2015-07-10 08:54:10 +02:00
Ján Tomko
e30297b096 Rewrite allocation tracking when cloning volumes
Instead of storing the remaining bytes, store the position of the first
unallocated byte. This will allow changing the amount of bytes copied
by virStorageBackendCopyToFD without changing the safezero call.

No functional impact.
2015-07-10 08:53:26 +02:00
Jiri Denemark
04d5fb2e0a qemu: Drop LFs at the end of error from QEMU log
Libvirt's error messages do not end with a LF. However, when reading the
error from QEMU log, we would read the LF from the log and keep it in
the message.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-09 21:58:44 +02:00
Jiri Denemark
108a219f02 qemu: Log all arguments of qemuProcessStart
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-09 21:57:46 +02:00
Jiri Denemark
3409f5bc4e qemu: Wait for migration events on domain condition
Since we already support the MIGRATION event, we just need to make sure
the domain condition is signalled whenever a p2p connection drops or the
domain is paused due to IO error and we can avoid waking up every 50 ms
to check whether something happened.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-09 21:57:30 +02:00
Jiri Denemark
6d2edb6a42 qemu: Update migration state according to MIGRATION event
We don't need to call query-migrate every 50ms when we get the current
migration state via MIGRATION event.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-09 21:53:35 +02:00
Jiri Denemark
66c95964a5 qemuDomainGetJobStatsInternal: Support migration events
When QEMU supports migration events the qemuDomainJobInfo structure will
no longer be updated with migration statistics. We have to enter a job
and explicitly ask QEMU every time virDomainGetJob{Info,Stats} is
called.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-09 21:44:07 +02:00
Jiri Denemark
3df4d2a45a qemu: Enable migration events on QMP monitor
Even if QEMU supports migration events it doesn't send them by default.
We have to enable them by calling migrate-set-capabilities. Let's enable
migration events everytime we can and clear QEMU_CAPS_MIGRATION_EVENT in
case migrate-set-capabilities does not support events.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-09 21:44:07 +02:00
Jiri Denemark
a60ee613c4 qemu_monitor: Wire up MIGRATION event
Thanks to Juan's work QEMU finally emits an event whenever migration
state changes.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2015-07-09 21:44:07 +02:00
Guido Günther
c6f9ddf909 qemu: don't use initialized ret in qemuRemoveSharedDevice
This fixes

  CC     qemu/libvirt_driver_qemu_impl_la-qemu_conf.lo
  qemu/qemu_conf.c: In function 'qemuRemoveSharedDevice':
  qemu/qemu_conf.c:1384:9: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
2015-07-09 19:13:43 +02:00
Pavel Hrdina
28554080ec qemu_hotplug: try harder to eject media
Some guests lock the tray and QEMU eject command will simply fail to
eject the media.  But the guest OS can handle this attempt to eject the
media and can unlock the tray and open it. In this case, we should try
again to actually eject the media.

If the first attempt fails to detect a tray_open we will fail with
error, from monitor.  If we receive that event, we know, that the guest
properly reacted to the eject request, unlocked the tray and opened it.
In this case, we need to run the command again to actually eject the
media from the device.  The reason to call it again is, that QEMU
doesn't wait for the guest to react and report an error, that the tray
is locked.

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1147471

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-07-09 18:02:05 +02:00
Pavel Hrdina
256496e149 monitor: detect that eject fails because the tray is locked
Modify the eject monitor functions to parse the return code and detect,
whether the error contains "is locked" to report this type of failure to
upper layers.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-07-09 18:02:05 +02:00
Pavel Hrdina
6b278f3ad6 virDomainObjSignal: drop this function
There are multiple consumers for the domain condition and we should
always wake them all.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-07-09 18:02:05 +02:00
Pavel Hrdina
5c48618f11 virCondWaitUntil: add another return value
We should distinguish between success and timeout, to let the user
handle those two events differently.

Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
2015-07-09 18:02:05 +02:00
Luyao Huang
b5c2245b0c qemu: report error for non-existing disk in blockjobinfo
Before:

 # virsh blockjob r7 vdc
 error: An error occurred, but the cause is unknown

After:

 # virsh blockjob r7 vdc
 error: Disk 'vdc' not found in the domain

Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1241355

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-09 16:10:05 +02:00
John Ferlan
2e09729b1c conf: Don't allow duplicated target names regardless of bus
https://bugzilla.redhat.com/show_bug.cgi?id=1142631

Commit id 'e0e290552' added a check to determine if the same bus
had the same target value.  It seems that's not quite good enough
as the check should check the target name value regardless of bus type.

Also added a DO_TEST_DIFFERENT to exhibit the issue
2015-07-09 08:30:02 -04:00
Erik Skultety
b563787192 storage: Revert volume obj list updating after volume creation (4749d82a)
This patch reverts commit 4749d82a which tried to tweak the logic in
volume creation. We did realloc and update our object list before we executed
volume building within a specific storage backend. If that failed, we
had to update (again) our object list to the original state as it was before the
build and delete the volume from the pool (even though it didn't exist - this
truly depends on the backend).
I misunderstood the base idea to be able to poll the status of the volume
creation using vol-info. After commit 4749d82a this wasn't possible
anymore, although no BZ has been reported yet.

Commit 4749d82a also claimed to fix
https://bugzilla.redhat.com/show_bug.cgi?id=1223177, but commit c8be606b of the
same series as 4749d82ad (which was more of a refactor than a fix)
fixes the same issue so the revert should be pretty straightforward.
Further more, BZ https://bugzilla.redhat.com/show_bug.cgi?id=1241454 can be
fixed with this revert.
2015-07-09 13:23:27 +02:00
John Ferlan
69b850fe2a qemu: Fix integer/boolean logic in qemuSetUnprivSGIO
Setting of 'val' is a boolean expression, so handle it that way and
adjust the check/return logic to be clearer

Signed-off-by: John Ferlan <jferlan@redhat.com>
2015-07-09 06:48:05 -04:00
John Ferlan
931ac3cdb5 qemu: Refactor qemuSetUnprivSGIO return values
Set to ret = -1 and prove otherwise, like usual

Signed-off-by: John Ferlan <jferlan@redhat.com>
2015-07-09 06:48:05 -04:00
John Ferlan
3830795318 qemu: Inline qemuGetHostdevPath
Since a future patch will need the device path generated when adding a
shared host device, remove the qemuAddSharedHostdev and inline the two
calls into qemuAddSharedHostdev and qemuRemoveSharedHostdev

Signed-off-by: John Ferlan <jferlan@redhat.com>
2015-07-09 06:48:05 -04:00
John Ferlan
f6a5cbbfdc qemu: Refactor qemuCheckSharedDisk to create qemuCheckUnprivSGIO
Split out the current function in order to share the code with hostdev
in a future patch. Failure to match the expected sgio value against what
is stored will cause an error which the caller would need to handle since
only the caller has the disk (or eventually hostdev) specific data in
order to uniquely identify the disk in an error message.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2015-07-09 06:48:05 -04:00
Jim Fehlig
e9c2734441 libxl: rework setting the state of virDomainObj
Set the state of virDomainObj in the functions that
actually change the domain state, instead of the generic
libxlDomainCleanup function. This approach gives functions
calling libxlDomainCleanup more flexibility wrt when and
how they change virDomainObj state via virDomainObjSetState.

The prior approach of calling virDomainObjSetState in
libxlDomainCleanup resulted in the following incorrect
coding pattern in the various functions that change
domain state

 libxlDomain<DoStateTransition>
   call libxl function to do state transition
   emit lifecycle event
   libxlDomainCleanup
     virDomainObjSetState

Once simple manifestation of this bug is seeing a domain
running in virt-manager after selecting the shutdown button,
even after the domain has long shutdown.
2015-07-08 15:24:48 -06:00
Jim Fehlig
45697fe545 libxl: support dom0
In Xen, dom0 is really just another domain that supports ballooning,
adding/removing devices, changing vcpu configuration, etc. This patch
adds support to the libxl driver for managing dom0. Note that the
legacy xend driver has long supported managing dom0.

Operations that are not supported on dom0 are filtered in libvirt
where a sensible error is reported. Errors from libxl are not
always helpful. E.g., attempting a save on dom0 results in

2015-06-23 15:25:05 MDT libxl: debug: libxl_dom.c:1570:libxl__toolstack_save: domain=0 toolstack data size=8
2015-06-23 15:25:05 MDT libxl: debug: libxl.c:979:do_libxl_domain_suspend: ao 0x7f7e68000b70: inprogress: poller=0x7f7e68000930, flags=i
2015-06-23 15:25:05 MDT libxl-save-helper: debug: starting save: Success
2015-06-23 15:25:05 MDT xc: detail: xc_domain_save_suse: starting save of domid 0
2015-06-23 15:25:05 MDT xc: error: Couldn't map live_shinfo (3 = No such process): Internal error
2015-06-23 15:25:05 MDT xc: detail: Save exit of domid 0 with errno=3
2015-06-23 15:25:05 MDT libxl-save-helper: debug: complete r=1: No such process
2015-06-23 15:25:05 MDT libxl: error: libxl_dom.c:1876:libxl__xc_domain_save_done: saving domain: domain did not respond to suspend request: No such process
2015-06-23 15:25:05 MDT libxl: error: libxl_dom.c:2033:remus_teardown_done: Remus: failed to teardown device for guest with domid 0, rc -8

Signed-off-by: Jim Fehlig <jfehlig@suse.com>
2015-07-08 15:04:59 -06:00
John Ferlan
083cbe506b qemu: Introduce qemuGetHostdevPath
Introduce a convenience function to handle formulating the hostdev path

Signed-off-by: John Ferlan <jferlan@redhat.com>
2015-07-08 15:07:22 -04:00
John Ferlan
8c43258ed5 qemu: Introduce qemuIsSharedHostdev
Add a single boolean function to handle whether the hostdev is shared or not.

Use the new function for the qemu{Add|Remove}SharedHostdev calls as well
as qemuSetUnprivSGIO. NB: This third usage fixes a possible bug where
if this feature is enabled at some time in the future and the shareable flag
wasn't set, the sgio would have been erroneously set.

Signed-off-by: John Ferlan <jferlan@redhat.com>
2015-07-08 15:07:22 -04:00
Luyao Huang
955d9bb8d0 qemu: report error when shmem has an invalid address
If user passes an invalid address for shared memory device to qemu,
neither libvirt nor qemu will report an error, but qemu will auto assign
a pci address to the shared memory device.

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-08 16:30:42 +02:00
Luyao Huang
2c2655744a conf: use virDomainChrSourceDef to save server path
As the backend of shmem server is a unix type chr device, save it in
virDomainChrSourceDef, so we can reuse the existing code for chr device.

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-08 16:30:42 +02:00
Luyao Huang
ffe96a1593 qemu: Refactor creation of shared memory device commandline
Rename qemuBuildShmemDevCmd to qemuBuildShmemDevStr and change the
return type so that it can be reused in the device hotplug code later.

And split the chardev creation part in a new function
qemuBuildShmemBackendStr for reuse in the device hotplug code later.

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-08 16:30:42 +02:00
Luyao Huang
e9401342e1 qemu: Assign IDs for shared memory devices
Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-08 16:30:42 +02:00
Luyao Huang
e309ea6658 qemu: Auto assign pci addresses for shared memory devices
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1165029

Signed-off-by: Luyao Huang <lhuang@redhat.com>
2015-07-08 16:30:42 +02:00
Maxim Nestratov
7d73ca06ce vz: use PRL_USE_VNET_NAME_FOR_BRIDGE_NAME
It is better not to assume that newly created network should be
connected to a bridge with same name, but specify it explicitly
by PRL_USE_VNET_NAME_FOR_BRIDGE_NAME flag.

Signed-off-by: Maxim Nestratov <mnestratov@virtuozzo.com>
2015-07-08 17:21:11 +03:00