When comparing a CPU without <model> element, such as
<cpu>
<topology sockets='1' cores='1' threads='1'/>
</cpu>
libvirt would happily crash without warning.
When autodetecting whether XML describes guest or host CPU, the presence
of <arch> element is checked. If it's present, we treat the XML as host
CPU definition. Which is right, since guest CPU definitions do not
contain <arch> element. However, if at the same time the root <cpu>
element contains `match' attribute, we would silently ignore it and
still treat the XML as host CPU. We should rather refuse such invalid
XML.
When a CPU to be compared with host CPU describes a host CPU instead of
a guest CPU, the result is incorrect. This is because instead of
treating additional features in host CPU description as required, they
were treated as if they were mentioned with all possible policies at the
same time.
In case qemu supports -nodefconfig, libvirt adds uses it when launching
new guests. Since this option may affect CPU models supported by qemu,
we need to use it when probing for available models.
An indentation mistake meant that a check for return status
was not properly performed in all cases. This could result
in a crash on NULL pointer in a following line.
* src/qemu/qemu_monitor_json.c: Fix check for return status
when processing JSON for blockstats
A missing return statement in the python binding meant that
the callers could not get the callback ID, and thus not be
able to unregister event callbacks
* python/libvirt-override-virConnect.py: Add missing return
statement
This patch adds a new --details option to the virsh vol-list
command, making its output more useful when many luns are
present.
Addresses BZ # 605543
https://bugzilla.redhat.com/show_bug.cgi?id=605543
By specifying <vendor> element in CPU requirements a guest can be
restricted to run only on CPUs by a given vendor. Host CPU vendor is
also specified in capabilities XML.
The vendor is checked when migrating a guest but it's not forced, i.e.,
guests configured without <vendor> element can be freely migrated.
All features in the baseline CPU definition were always created with
policy='require' even though an arch driver returned them with different
policy settings.
This allows the user to give an explicit path to configure
./configure --with-vbox=/path/to/virtualbox
instead of having the VirtualBox driver probe a set of possible
paths at runtime. If no explicit path is specified then configure
probes the set of "known" paths.
https://bugzilla.redhat.com/show_bug.cgi?id=609185
We only use libpciaccess for resolving device product/vendor. If
initializing the library fails (say if using qemu:///session), don't
warn so loudly, and carry on as usual.
Any error message raised after the process has forked needs
to be followed by virDispatchError, otherwise we have no chance of
ever seeing it. This was selectively done for hook functions in the past,
but really applies to all post-fork errors.
As pointed out by Eric Blake, using dirent->d_type breaks
compilation on MinGW. This patch addresses this by using
'#if defined' as same as doing for virCgroupForDriver.
https://bugzilla.redhat.com/show_bug.cgi?id=609044 complained
that 'virsh help pool-create-as' didn't document the shortcut
that you can do 'virsh pool-create-as $name $type --target $target'
rather than having to supply the four optional source- arguments
in order to fill out the necessary positional arguments.
This one-liner changes the help output to hopefully make this more obvious:
NAME
pool-create-as - create a pool from a set of args
SYNOPSIS
pool-create-as <name> [--print-xml] <type> [<source-host>] [<source-path>] [<source-dev>] [<source-name>] [<target>] [--source-format <string>]
DESCRIPTION
Create a pool.
OPTIONS
[--name] <string> name of the pool
--print-xml print XML document, but don't define/create
[--type] <string> type of the pool
[--source-host] <string> source-host for underlying storage
[--source-path] <string> source path for underlying storage
[--source-dev] <string> source device for underlying storage
[--source-name] <string> source name for underlying storage
[--target] <string> target for underlying storage
--source-format <string> format for underlying storage
* tools/virsh.c (vshCmddefHelp): Make it more obvious that data
arguments may, but not must, be specified by option leaders.
Some, but not all, codepaths in the qemuMonitorOpen() method
would trigger the destroy callback. The caller does not expect
this to be invoked if construction fails, only during normal
release of the monitor. This resulted in a possible double-unref
of the virDomainObjPtr, because the caller explicitly unrefs
the virDomainObjPtr if qemuMonitorOpen() fails
* src/qemu/qemu_monitor.c: Don't invoke destroy callback from
qemuMonitorOpen() failure paths
ENOENT happens normally when a subsystem is enabled with any other
subsystems and the directory of the target group has already removed
in a prior loop. In that case, the function should just return without
leaving an error message.
NB this is the same behavior as before introducing virCgroupRemoveRecursively.
Make sure to *not* call qemuDomainPCIAddressReleaseAddr if
QEMUD_CMD_FLAG_DEVICE is *not* set (for older qemu). This
prevents a crash when trying to do device detachment from
a qemu guest.
Signed-off-by: Chris Lalancette <clalance@redhat.com>
In the current libvirt PCI code, there is no checking whether
a PCI device is in use by a guest when doing node device
detach or reattach. This causes problems when a device is
assigned to a guest, and the administrator starts issuing
nodedevice commands. Make it so that we check the list
of active devices when trying to detach/reattach, and only
allow the operation if the device is not assigned to a guest.
Signed-off-by: Chris Lalancette <clalance@redhat.com>
This patch adds a new --details option to the virsh pool-list
command, making its output more useful to people who use virsh
for significant lengths of time.
Addresses BZ # 605543
https://bugzilla.redhat.com/show_bug.cgi?id=605543
Fix regression introduced in commit a4a287242 - basically, the
phyp storage driver should only accept the same URIs that the
main phyp driver is willing to accept. Blindly accepting all
URIs meant that the phyp storage driver was being consulted for
'virsh -c qemu:///session pool-list --all', rather than the
qemu storage driver, then since the URI was not for phyp, attempts
to then use the phyp driver crashed because it was not initialized.
* src/phyp/phyp_driver.c (phypStorageOpen): Only accept connections
already open to a phyp driver.
This code was just recently added (by me) and didn't account for the
fact that stdin_path is sometimes NULL. If it's NULL, and
SetSecurityAllLabel fails, a segfault would result.
Because tty path is unexpectedly not saved in the live configuration
file of a domain, libvirtd cannot get the console of the domain back
after restarting.
The reason why the tty path isn't saved is that, to save the tty path,
the save function, virDomainSaveConfig, requires that the target domain
is running (pid != -1), however, lxc driver calls the function before
starting the domain to pass the configuration to controller.
To ensure to save the tty path, the patch lets lxc driver call the save
function again after starting the domain.
The function is expected to return negative value on failure,
however, it returns positive value when either setInterfaceName
or vethInterfaceUpOrDown fails. Because the function returns
the return value of either as is, however, the two functions
may return positive value on failure.
The patch fixes the defects and add error messages.
When the saved domain image is on an NFS share, at least some part of
domainSetSecurityAllLabel will fail (for example, selinux labels can't
be modified). To allow domain restore to still work in this case, just
ignore the errors.
virStorageFileIsSharedFS would previously only work if the entire path
in question was stat'able by the uid of the libvirtd process. This
patch changes it to crawl backwards up the path retrying the statfs
call until it gets to a partial path that *can* be stat'ed.
This is necessary to use the function to learn the fstype for files
stored as a different user (and readable only by that user) on a
root-squashed remote filesystem.
Also restore the label to its original value after qemu is finished
with the file.
Prior to this patch, qemu domain restore did not function properly if
selinux was set to enforce.
(EXTRA_DIST): Remove redundant listing of xml files.
(html/%-%.html, html/%-virterror.html, %-api.xml, %-refs.xml):
Rewrite with...
(python_generated_files): ...new macro, since make didn't see
through the dependency chain correctly otherwise.
There were some major, and some minor bugs having to do with
the reference counting of node devices in daemon/remote.c.
Some functions were completely failing to unreference node devices;
this would lead to many open file descriptors, which would eventually
fail.
The minor bugs were along the same lines, but were in rarely
used error paths.
Signed-off-by: Chris Lalancette <clalance@redhat.com>
Signed-off-by: Matthias Bolte <matthias.bolte@googlemail.com>
If an active migration operation fails, or is cancelled by the
admin, the QEMU on the destination is shutdown and the one on
the source continues running. It is important in shutting down
the QEMU on the destination, the security drivers don't reset
the file labelling/permissions.
* src/qemu/qemu_driver.c: Don't reset labelling/permissions
on migration abort
Minor speedups by using the full power of sed.
* src/phyp/phyp_driver.c (phypGetVIOSFreeSCSIAdapter)
(phypDiskType, phypListDefinedDomains): Use fewer processes, by
folding other work into sed.
(phypGetVIOSPartitionID): Likewise. Also avoid non-portable use
of 'sed -s'.
