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From a security pov copy and paste between the guest and the client is not
always desirable. So we need to be able to enable/disable this. The best place
to do this from an administration pov is on the hypervisor, so the qemu cmdline
is getting a spice disable-copy-paste option, see bug 693645. Example qemu
invocation:
qemu -spice port=5932,disable-ticketing,disable-copy-paste
https://bugzilla.redhat.com/show_bug.cgi?id=693661
Drivers load running persistent and transient domain configs before
inactive persistent domain configs, however only the latter would set a
domain's autostart flag. This mismatch between the loaded and on-disk
state could later cause problems with "virsh autostart":
# virsh autostart example
error: Failed to mark domain example as autostarted
error: Failed to create symlink '/etc/libvirt/qemu/autostart/example.xml to '/etc/libvirt/qemu/example.xml': File exists
This patch ensures the autostart flag is set correctly even when the
domain is already defined.
Fixes:
https://bugzilla.redhat.com/show_bug.cgi?id=632100https://bugzilla.redhat.com/show_bug.cgi?id=675319
Signed-off-by: Michael Chapman <mike@very.puzzling.org>
Add public virDomainSendKey() and enum libvirt_keycode_set
for the @codeset.
Python version of virDomainSendKey() has not been implemented yet,
it will be done soon.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
A VSH_OFLAG_REQ_OPT option means --optionname is required when used.
It will kill any ambiguity, even a !VSH_OFLAG_REQ option listed before
a VSH_OFLAG_REQ option, if the !VSH_OFLAG_REQ option is a
VSH_OFLAG_REQ_OPT option.
It will help us use optional argument with VSH_OT_ARGV argument.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
A name will improve the usege, example
# virsh help echo
NAME
echo - echo arguments
SYNOPSIS
echo [--shell] [--xml] [<string>]...
DESCRIPTION
Echo back arguments, possibly with quoting.
OPTIONS
--shell escape for shell use
--xml escape for XML use
<string> arguments to echo
"[<string>]..." is added to SYNOPSIS.
"<string> arguments to echo" is added to OPTIONS.
Signed-off-by: Lai Jiangshan <laijs@cn.fujitsu.com>
Previously, the parent process opened 'null' to /dev/null, then
the child process closes 'null' as well as 'childout'. But if
childout was set to be null, then this is a double close. At
least the double close was confined to the child process after a
fork, and therefore there is no risk of another thread opening
an fd of the same value to be bitten by the double close, but it
is always better to avoid double-close to begin with.
Additionally, if all three fds were specified, then opening
'null' was wasted.
This patch fixes things to lazily open null on the first use,
then guarantees it gets closed exactly once.
* src/util/command.c (getDevNull): New helper function.
(virExecWithHook): Use it to avoid spurious opens and double close.
This also reduces malloc pressure for invoking a child when
VIR_DEBUG is enabled.
* src/util/command.c (virExecWithHook): Drop debug, since the only
caller (virCommandRunAsync) also prints debug info.
If qemu supports -chardev, our char frontend aliases are ex. 'charserial0'
not just 'serial0'. Typically we don't use this code path because the
pty's are scraped from stdout.
Qemu once supported following memory stats which will returned by
"query_balloon":
stat_put(dict, "actual", actual);
stat_put(dict, "mem_swapped_in", dev->stats[VIRTIO_BALLOON_S_SWAP_IN]);
stat_put(dict, "mem_swapped_out", dev->stats[VIRTIO_BALLOON_S_SWAP_OUT]);
stat_put(dict, "major_page_faults", dev->stats[VIRTIO_BALLOON_S_MAJFLT]);
stat_put(dict, "minor_page_faults", dev->stats[VIRTIO_BALLOON_S_MINFLT]);
stat_put(dict, "free_mem", dev->stats[VIRTIO_BALLOON_S_MEMFREE]);
stat_put(dict, "total_mem", dev->stats[VIRTIO_BALLOON_S_MEMTOT]);
But it later disabled all the stats except "actual" by commit
07b0403dfc2b2ac179ae5b48105096cc2d03375a.
libvirt doesn't parse "actual", so user will always see a empty result
with "virsh dommemstat $domain". Even qemu haven't disabled the stats,
we should support parsing "actual".
There is the case where cpu affinites for vcpu of qemu doesn't work
correctly. For example, if only one vcpupin setting entry is provided
and its setting is not for vcpu0, it doesn't work.
# virsh dumpxml VM
...
<vcpu>4</vcpu>
<cputune>
<vcpupin vcpu='3' cpuset='9-11'/>
</cputune>
...
# virsh start VM
Domain VM started
# virsh vcpuinfo VM
VCPU: 0
CPU: 31
State: running
CPU time: 2.5s
CPU Affinity: yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
VCPU: 1
CPU: 12
State: running
CPU time: 0.9s
CPU Affinity: yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
VCPU: 2
CPU: 30
State: running
CPU time: 1.5s
CPU Affinity: yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
VCPU: 3
CPU: 13
State: running
CPU time: 1.7s
CPU Affinity: yyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy
This patch fixes this problem.
Signed-off-by: Taku Izumi <izumi.taku@jp.fujitsu.com>
Since the addition of the lock manager framework in 6a943419c5
dlopen is always required, but the checks in configure wasn't changed
to reflect that. This didn't show up directly because the VirtualBox
driver linking dlopen in covered it. But disabling the VirtualBox
driver makes the build fail due to missing dlopen.
Change the dlopen check in configure to pick up dlopen when available.
Reported by Ruben Kerkhof.
This patch deprecates following enums:
VIR_DOMAIN_MEM_CURRENT
VIR_DOMAIN_MEM_LIVE
VIR_DOMAIN_MEM_CONFIG
VIR_DOMAIN_VCPU_LIVE
VIR_DOMAIN_VCPU_CONFIG
VIR_DOMAIN_DEVICE_MODIFY_CURRENT
VIR_DOMAIN_DEVICE_MODIFY_LIVE
VIR_DOMAIN_DEVICE_MODIFY_CONFIG
And modify internal codes to use virDomainModificationImpact.
The below patch decreases the response time of libvirt to errors reported by Qemu upon startup by checking whether the qemu process is still alive while polling for the local socket to show up.
This patch also introduces a special handling of signal for the Win32 part of virKillProcess.
This patch adds the new option (--live, --config and --current) to
"virsh vcpupin" command. The behavior of above aption is the same as
that of "virsh setmem", "virsh setvcpus", and whatnot.
When the --config option is specified, the command affects a persistent
domain, while --live option is specified, it affects a running (live) domain.
The --current option cannot be used with --config or --live at the same
time, and when --current is specified, it affects a "current" domain.
If qemu supports multi function PCI device, the format of the PCI address passed
to qemu is "bus=pci.0,multifunction=on,addr=slot.function".
If qemu does not support multi function PCI device, the format of the PCI address
passed to qemu is "bus=pci.0,addr=slot".
Hot pluging/unpluging multi PCI device is not supported now. So the function
of hotplugged PCI device must be 0. When we hot unplug it, we should set release
all functions in the slot.
