Commit Graph

24859 Commits

Author SHA1 Message Date
Maxim Nestratov
745263589f Revert "vz: fixed race in vzDomainAttach/DettachDevice"
This reverts commit 3a6cf6fc16.

Mistakenly this commit was pushed because I thought I missed the
corret one b880ff42dd while in fact I didn't.

Signed-off-by: Maxim Nestratov <mnestratov@virtuozzo.com>
2016-11-25 17:26:55 +03:00
Michal Privoznik
c2a5a4e7ea virstring: Unify string list function names
We have couple of functions that operate over NULL terminated
lits of strings. However, our naming sucks:

virStringJoin
virStringFreeList
virStringFreeListCount
virStringArrayHasString
virStringGetFirstWithPrefix

We can do better:

virStringListJoin
virStringListFree
virStringListFreeCount
virStringListHasString
virStringListGetFirstWithPrefix

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-11-25 13:54:05 +01:00
Peter Krempa
0d91565e62 docs: NEWS: Mention changes in memory slot number allocation 2016-11-25 13:45:23 +01:00
Peter Krempa
2db4205f0e docs: NEWS: Mention 'gluster_debug_level' qemu.conf option in the news 2016-11-25 13:45:17 +01:00
Andrea Bolognani
5fd531ba4b NEWS: Add some missing entries
Catch up with changes that have been pushed but didn't include
updates to the NEWS file themselves.
2016-11-25 11:15:15 +01:00
Boris Fiuczynski
b178fa8ecb qemu: fix internal error: NUMA isn't available on this host
If libvirt is compiled without NUMACTL support starting libvirtd
reports a libvirt internal error "NUMA isn't available on this host"
without checking if NUMA support is compiled into the libvirt binaries.
This patch adds the missing NUMA support check to prevent the internal error.
It also includes a check if the cgroup controller cpuset is available before
using it.

The error was noticed when libvirtd was restarted with running domains and
on libvirtd start the qemuConnectCgroup gets called during qemuProcessReconnect.

Signed-off-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
2016-11-25 09:48:41 +01:00
Eric Farman
ae5d30a0b3 conf: Wire up the vhost-scsi connection from/to XML
With the QEMU components in place, provide the XML parsing to
invoke that code when given the following XML snippet:

    <hostdev mode='subsystem' type='scsi_host'>
      <source protocol='vhost' wwpn='naa.501234567890abcd'/>
    </hostdev>

An optional address element can be specified within the hostdev
(pick CCW or PCI as necessary):

    <address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0625'/>
    <address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>

Add basic vhost-scsi tests which were cloned from hostdev-scsi-virtio-scsi
in both xml2argv and xml2xml. Added ones for both vhost-scsi-ccw and
vhost-scsi-pci since the syntaxes are slightly different between them.

Also adjusted the docs to describe the changes.

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2016-11-24 12:22:25 -05:00
Eric Farman
81a206f52b security: Include vhost-scsi in security labels
Ensure that the vhost-scsi wwpn information is passed to the
different security policies.

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
2016-11-24 12:16:26 -05:00
Eric Farman
8c6d365373 qemu: Allow hotplug of vhost-scsi device
Adjust the device string that is built for vhost-scsi devices so that it
can be invoked from hotplug.

From the QEMU command line, the file descriptors are expect to be numeric only.
However, for hotplug, the file descriptors are expected to begin with at least
one alphabetic character else this error occurs:

  # virsh attach-device guest_0001 ~/vhost.xml
  error: Failed to attach device from /root/vhost.xml
  error: internal error: unable to execute QEMU command 'getfd':
  Parameter 'fdname' expects a name not starting with a digit

We also close the file descriptor in this case, so that shutting down the
guest cleans up the host cgroup entries and allows future guests to use
vhost-scsi devices.  (Otherwise the guest will silently end.)

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
2016-11-24 12:16:23 -05:00
Eric Farman
9cc26dc622 qemu: Add vhost-scsi string for -device parameter
Open /dev/vhost-scsi, and record the resulting file descriptor, so that
the guest has access to the host device outside of the libvirt daemon.
Pass this information, along with data parsed from the XML file, to build
a device string for the qemu command line.  That device string will be
for either a vhost-scsi-ccw device in the case of an s390 machine, or
vhost-scsi-pci for any others.

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
2016-11-24 12:16:19 -05:00
Eric Farman
629544be0f util: Management routines for scsi_host devices
For a new hostdev type='scsi_host' we have a number of
required functions for managing, adding, and removing the
host device to/from guests.  Provide the basic infrastructure
for these tasks.

The name "SCSIVHost" (and its variants) is chosen to avoid
conflicts with existing code named "SCSIHost" to refer to
a hostdev type='scsi' protcol='none'.

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
2016-11-24 12:15:26 -05:00
Eric Farman
fc0e627bac Introduce framework for a hostdev SCSI_host subsystem type
We already have a "scsi" hostdev subsys type, which refers to a single
LUN that is passed through to a guest.  But what of things where
multiple LUNs are passed through via a single SCSI HBA, such as with
the vhost-scsi target?  Create a new hostdev subsys type that will
carry this.

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
2016-11-24 12:15:26 -05:00
Eric Farman
c271fc1f35 qemu: Introduce vhost-scsi capability
Do all the stuff for the vhost-scsi capability in QEMU,
so it's in place for our checks later.

Signed-off-by: Eric Farman <farman@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2016-11-24 12:15:26 -05:00
Roman Bogorodskiy
a42342912b tests: eventtest: fix build on macOS
macOS doesn't support clock_gettime(2), at least versions prior 10.12
(I didn't actually check 10.12 though). So, use its own routines in
eventtest.

 * configure.ac: check for requires symbols and define
   HAVE_MACH_CLOCK_ROUTINES if found
 * tests/eventtest.c: add clock_get_time() based implementation
2016-11-24 18:11:05 +03:00
Roman Bogorodskiy
0d1c147f60 tests: eventtest: fix LDADD
Don't explicitly LDADD -lrt, use $(LIB_CLOCK_GETTIME) because
not all platforms have clock_gettime(2) and librt available.
2016-11-24 18:10:13 +03:00
Roman Bogorodskiy
e4cb660160 genprotocol.pl: add darwin to fixup list 2016-11-24 17:17:43 +03:00
Dawid Zamirski
6358653596 vbox: get rid of g_pVBoxGlobalData
now that we have a new global vboxDriver object, remove the old
vboxGlobalData struct and all references to it.
2016-11-23 14:47:21 -05:00
Dawid Zamirski
04518c364b vbox: change how vbox API is initialized.
* add vboxDriver object to serve as a singleton global object that
  holds references to IVirtualBox and ISession to be shared among
  multiple connections. The vbox_driver is instantiated only once in
  the first call vboxGetDriverConnection function that is guarded by
  a mutex.

* call vbox API initialize only when the first connection is
  established, and likewise uninitialize when last connection
  disconnects. The prevents each subsequent connection from overwriting
  IVirtualBox/ISession instances of any other active connection that
  led to libvirtd segfaults. The virConnectOpen and virConnectClose
  implementations are guarded by mutex on the global vbox_driver_lock
  where the global vbox_driver object counts connectios and decides
  when it's safe to call vbox's init/uninit routines.

* add IVirutalBoxClient to vboxDriver and use it to in tandem with newer
  pfnClientInitialize/pfnClientUninitalize APIs for vbox versions that
  support it, to avoid usage of the old pfnComInitialize/Uninitialize.
2016-11-23 14:38:14 -05:00
Marc Hartmayer
b270ef9981 qemu: Removed an outdated comment in qemuDomainSaveImageStartVM()
Removed the comment 'Set the migration source' as it isn't valid anymore
and 'start it up' isn't useful as qemuProcessStart() is already a
speaking name.

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
2016-11-23 12:33:38 -05:00
Bjoern Walk
fdb060f0b5 virutil: fix trailing '/' for path prefixes
The path prefixes for sysfs trees are always prepended by paths
beginning with a slash, making the trailing slash in the prefix
redundant.

Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2016-11-23 12:33:38 -05:00
Marc Hartmayer
7ab1fd91a4 virfile: Only generate a warning if there is something to report
Only generate a warning if there is something to report.

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2016-11-23 12:33:38 -05:00
Nitesh Konkar
d276da48bc Fix typos and grammar
Signed-off-by: Nitesh Konkar <nitkon12@linux.vnet.ibm.com>
2016-11-23 12:08:15 -05:00
Michal Privoznik
5d9c2c7081 qemu: Update cgroup on chardev hotplug
Just like in the previous commit, we are not updating CGroups on
chardev hot(un-)plug and thus leaving qemu unable to access any
non-default device users are trying to hotplug.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-11-23 16:38:02 +01:00
Michal Privoznik
085692c8bb qemu: Update cgroup on RNG hotplug
If users try to hotplug RNG device with a backend different to
/dev/random or /dev/urandom the whole operation fails as qemu is
unable to access the device. The problem is we don't update
device CGroups during the operation.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-11-23 16:37:57 +01:00
Michal Privoznik
2878d145fc docs: Add apps.html link to index.html
I think when trying to introduce libvirt (we have a section for
that in our index page) it might be useful to promote success
stories - other applications that are based on libvirt.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-11-23 13:53:56 +01:00
Andrea Bolognani
b8014fd212 NEWS: Close <li> tag properly
Not closing the <li> tag on a separate line causes the plain
text version of the file to have no empty line between entries.
2016-11-23 11:59:14 +01:00
Pino Toscano
61e1f108a9 NEWS: document the new libssh transport 2016-11-23 11:43:37 +01:00
Nikolay Shirokovskiy
aaf2992d90 qemu: agent: fix unsafe agent access
qemuDomainObjExitAgent is unsafe.

First it accesses domain object without domain lock.
Second it uses outdated logic that goes back to commit 79533da1 of
year 2009 when code was quite different. (unref function
instead of unreferencing only unlocked and disposed object
in case of last reference and leaved unlocking to the caller otherwise).
Nowadays this logic may lead to disposing locked object
i guess.

Another problem is that the callers of qemuDomainObjEnterAgent
use domain object again (namely priv->agent) without domain lock.

This patch address these two problems.

qemuDomainGetAgent is dropped as unused.
2016-11-23 11:31:28 +03:00
Nikolay Shirokovskiy
3c1c56781d qemu: drop write-only agentStart 2016-11-23 11:31:14 +03:00
Nikolay Shirokovskiy
6ba861ae36 qemu: agent: cleanup agent error flag correctly
Sometimes after domain restart agent is unavailabe even
if it is up and running in guest. Diagnostic message is
"QEMU guest agent is not available due to an error"
that is 'priv->agentError' is set. Investiagion shows that
'priv->agent' is not NULL, so error flag is set probably
during domain shutdown process and not cleaned up eventually.

The patch is quite simple - just clean up error flag unconditionally
upon domain stop.

Other hunks address other cases when error flag is not cleaned up.

1. processSerialChangedEvent. We need to clean error flag
unconditionally here too. For example if upon first 'connected' event we
fail to connect and set error flag and then connect on second
'connected' event then error flag will remain set erroneously
and make agent unavailable.

2. qemuProcessHandleAgentEOF. If error flag is set and we get
EOF we need to change state (and diagnostic) from 'error' to
'not connected'.
2016-11-23 11:14:44 +03:00
Nikolay Shirokovskiy
f5109f20ff qemu: agent: remove redundant check 2016-11-23 11:14:28 +03:00
Nikolay Shirokovskiy
851ae08e3e qemu: agent: handle agent connection errors in one place
qemuConnectAgent return -1 or -2 in case of different errors.
A. -1 is a case of unsuccessuful connection to guest agent.
B. -2 is a case of destoyed domain during connection attempt.

All qemuConnectAgent callers handle the first error the same way
so let's move this logic into qemuConnectAgent itself. Patched
function returns 0 in case A and -1 in case B.
2016-11-23 11:14:11 +03:00
Nikolay Shirokovskiy
01079727fe libvirtd: systemd: add special target for system shutdown
It is already discussed in "[RFC] daemon: remove hardcode dep on libvirt-guests" [1].

Mgmt can use means to save/restore domains on system shutdown/boot other than
libvirt-guests.service. Thus we need to specify appropriate ordering dependency between
libvirtd, domains and save/restore service. This patch takes approach suggested
in RFC and introduces a systemd target, so that ordering can be built next way:

libvirtd -> domain -> virt-guest-shutdown.target -> save-restore.service.

This way domains are decoupled from specific shutdown service via intermediate
target.

[1] https://www.redhat.com/archives/libvir-list/2016-September/msg01353.html
2016-11-23 11:13:53 +03:00
Jiri Denemark
29dc9a52d7 virsh: Document --rdma-pin-all migrate option properly
https://bugzilla.redhat.com/show_bug.cgi?id=1368351

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-22 21:32:54 +01:00
Jiri Denemark
38f7f297c8 virsh: Add support for VIR_MIGRATE_PARAM_PERSIST_XML
Commit v1.3.3-181-gb028e9d7c implmented support for
VIR_MIGRATE_PARAM_PERSIST_XML migration parameter, but forgot to update
virsh.

https://bugzilla.redhat.com/show_bug.cgi?id=835300

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-22 21:24:55 +01:00
Marc Hartmayer
1c122e737e Refactoring: Use virHostdevIsSCSIDevice()
Use the util function virHostdevIsSCSIDevice() to simplify if
statements.

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2016-11-22 14:37:36 +01:00
Marc Hartmayer
20bf8ea693 util: Add virHostdevIsSCSIDevice()
Add the function virHostdevIsSCSIDevice() which detects whether a
hostdev is a SCSI device or not.

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2016-11-22 14:37:36 +01:00
Marc Hartmayer
505bc9b025 qemu: Fix improper union member access on hostdevs
Add missing checks if a hostdev is a subsystem/SCSI device before access
the union member 'subsys'/'scsi'.  Also fix indentation and simplify
qemuDomainObjCheckHostdevTaint().

Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
2016-11-22 14:37:36 +01:00
Sławek Kapłoński
ae381879f3 Forbid new-line char in name of new storagepool
New line character in name of storagepool is now forbidden because it
mess virsh output and can be confusing for users.
Validation of name is done in driver, after parsing XML to avoid
problems with dissappeared pools which was already created with
new-line char in name.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-11-22 14:36:47 +01:00
Sławek Kapłoński
6c98ac2c62 Forbid new-line char in name of new domain
New line character in name of domain is now forbidden because it
mess virsh output and can be confusing for users.
Validation of name is done in drivers, after parsing XML to avoid
problems with dissappeared domains which was already created with
new-line char in name.

Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
2016-11-22 14:35:14 +01:00
Andrea Bolognani
d6a5bef11e NEWS: Update entries
All of these changes have already been merged, so document
them properly.
2016-11-22 14:05:24 +01:00
Andrea Bolognani
aa7ea14fb9 NEWS: Update XSLT stylesheet
The new format requires some tweaks to be translated into
a nice plain text output, and the XSLT stylesheet needs to
be updated to match.
2016-11-22 14:05:24 +01:00
Andrea Bolognani
91489adb7f NEWS: Archive 2016 releases
We're going to change the format of the source HTML quite
a bit, and we're going to have to update the XSLT stylesheet
accordingly.

Move 2016 releases out of the way before doing so.
2016-11-22 14:05:24 +01:00
Peter Krempa
b6afa9a8b5 qemu: monitor: Properly propagate the 'qemu_id' field through the matcher
Commit 3f71c79768 added 'qemu_id' field to track the id of the cpu
as reported by query-cpus. The patch did not include changes necessary
to propagate the id through the functions matching the data to the
libvirt cpu structures and thus all vcpus had id 0.
2016-11-22 10:44:17 +01:00
Peter Krempa
62d57d1b23 tests: qemumonitorjson: Rename 'qemu-id' to 'enable-id' in cpu info test
The field is named 'enable_id' in other structures and a patch recently
added 'qemu_id' which has different semantics. To avoid confusion in the
tests rename the field.
2016-11-22 10:23:47 +01:00
Roman Bogorodskiy
0b4c3bd307 bhyve: cleanup bhyveBuildNetArgStr error handling
Use 'goto cleanup'-style error handling instead of explicitly
freeing variables in every error path.
2016-11-21 20:17:41 +03:00
Peter Krempa
0df2524acb qemu: domain: Refresh vcpu halted state using qemuMonitorGetCpuHalted
Don't use qemuMonitorGetCPUInfo which does a lot of matching to get the
full picture which is not necessary and would be mostly discarded.

Refresh only the vcpu halted state using data from query-cpus.
2016-11-21 17:19:48 +01:00
Peter Krempa
5d885f4ff3 qemu: monitor: Extract halted state to a bitmap indexed by cpu id
We don't need to call qemuMonitorGetCPUInfo which is very inefficient to
get data required to update the vcpu 'halted' state.

Add a monitor helper that will retrieve the halted state and return it
in a bitmap so that it can be indexed easily.
2016-11-21 17:19:48 +01:00
Peter Krempa
3f71c79768 qemu: monitor: Extract qemu cpu id along with other data
Storing of the ID will allow simpler extraction of data present only in
query-cpus without the need to call qemuMonitorGetCPUInfo in statistics
paths.
2016-11-21 17:19:48 +01:00
Jiri Denemark
2e0d6cdec4 qemu_monitor_json: Don't check existence of "return" object
Whenever qemuMonitorJSONCheckError returns 0, the "return" object is
guaranteed to exist. Thus virJSONValueObjectGetObject will never fail to
get it. On the other hand, virJSONValueObjectGetArray may fail since the
"return" object may not be an array.

Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
2016-11-21 16:14:52 +01:00