1. All hyperv features are tristate ones. So make tristate generating part common.
2. Reduce nesting on spinlocks.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
1. All hyperv features are tristate ones. So make tristate parsing code common.
2. Reindent switch statement.
3. Reduce nesting in spinlocks parsing.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
When reading in an XML definition for a SCSI target device, the name
property of struct scsi_target refers to the @target element.
Let's fix this obvious typo and also extend the XML schema to provide
validation.
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Most hypervisors use Hardware Assisted Paging by default and don't
require specifying the feature in domain conf. But some hypervisors
support disabling HAP on a per-domain basis. To enable HAP by default
yet provide a knob to disable it, extend the <hap> feature with a
'state=on|off' attribute, similar to <pvspinlock> and <vmport> features.
In the absence of <hap>, the hypervisor default (on) is used. <hap>
without the state attribute would be the same as <hap state='on'/> for
backwards compatibility. And of course <hap state='off'/> disables hap.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
VIR_DOMAIN_EVENT_SUSPENDED_POSTCOPY and VIR_DOMAIN_PAUSED_POSTCOPY are
used on the source host once migration enters post-copy mode (which
means the domain gets paused on the source. After the destination host
takes over the execution of the domain, its virtual CPUs are resumed and
the domain enters VIR_DOMAIN_RUNNING_POSTCOPY state and
VIR_DOMAIN_EVENT_RESUMED_POSTCOPY event is emitted.
In case migration fails during post-copy mode and none of the hosts have
complete state of the domain, both domains will remain paused with
VIR_DOMAIN_PAUSED_POSTCOPY_FAILED reason and an upper layer may decide
what to do.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
It's just a combination of AddImplicitControllers, and AddConsoleCompat.
Every caller that wants ImplicitControllers also wants the ConsoleCompat
AFAICT, so lump them together. We also need it for future patches.
Judging by how the whitelist has skewed quite far from the original
error message, I think it's better to just drop these.
If someone wants to revive this check I suggest implementing it on
a per-HV driver basis with PostParse callbacks.
If we expose this information, which is one byte in every PCI config
file, we let all mgmt apps know whether the device itself is an endpoint
or not so it's easier for them to decide whether such device can be
passed through into a VM (endpoint) or not (*-bridge).
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1317531
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Commit id '4f846170' added printing of a new field 'part_separator';
however, neglected to do so when there was an "freeExtent" defined
for the device (as there would be when the disk pool was started).
This patch adjusts the logic to appropriately format the device path and
if there the part_separator attribute.
Just a cleanup I stumbled upon in one of my older branches I did when
browsing through some code and forgot to send it.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Add new function to manage adding the disk -drive options to the
command line removing that task from the mainline qemuBuildCommandLine.
Also since using const virDomainDef in new function, that means other
functions called needed to change their usage.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Add new function to manage adding the controller -device options to the
command line removing that task from the mainline qemuBuildCommandLine.
Also adjust to using const virDomainDef instead of virDomainDefPtr.
This causes collateral damage in order to modify called APIs to use
the const virDomainDef instead as well.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Extend the chardev source XML so that there is a new optional
<log/> element, which is applicable to all character device
backend types. For example, to log output of a TCP backed
serial port
<serial type='tcp'>
<source mode='connect' host='127.0.0.1' service='9999'/>
<protocol type='raw'/>
<log file='/var/log/libvirt/qemu/demo-serial0.log' append='on'/>
<target port='0'/>
</serial>
Not all hypervisors will support use of logfiles.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Introduce VIR_DOMAIN_DEF_FEATURE_OFFLINE_VCPUPIN domain feature flag
whcih will allow to skip ignoring of the pinning information for
hypervisor drivers which will want to implement forward-pinning of
vcpus.
Introduce a helper to check supported device and domain config and move
the memory hotplug checks to it.
The advantage of this approach is that by default all new features are
considered unsupported by all hypervisors unless specifically changed
rather than the previous approach where every hypervisor would need to
declare that a given feature is unsupported.
To avoid having to forbid new features added to domain XML in post parse
callbacks for individual hypervisor drivers the feature flag mechanism
will allow to add a central check that will be disabled for the drivers
that will add support.
As a first example flag, the 'hasWideSCSIBus' is converted to the new
bitmap.
The VIR_DOMAIN_EVENT_ID_JOB_COMPLETED event will be triggered once a job
(such as migration) finishes and it will contain statistics for the job
as one would get by calling virDomainGetJobStats. Thanks to this event
it is now possible to get statistics of a completed migration of a
transient domain on the source host.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
While trying to build with -Os couple of compile errors showed
up.
conf/domain_conf.c: In function 'virDomainChrRemove':
conf/domain_conf.c:13666:24: error: 'ret' may be used uninitialized in this function [-Werror=maybe-uninitialized]
virDomainChrDefPtr ret, **arrPtr = NULL;
^
Compiler fails to see that @ret is used only if set in the loop,
but whatever, there's no harm in initializing the variable.
In vboxAttachDrivesNew and _vboxAttachDrivesOld compiler thinks
that @rc may be used uninitialized. Well, not directly, but maybe
after some optimization. Yet again, no harm in initializing a
variable.
In file included from ./util/virthread.h:26:0,
from ./datatypes.h:28,
from vbox/vbox_tmpl.c:43,
from vbox/vbox_V3_1.c:37:
vbox/vbox_tmpl.c: In function '_vboxAttachDrivesOld':
./util/virerror.h:181:5: error: 'rc' may be used uninitialized in this function [-Werror=maybe-uninitialized]
virReportErrorHelper(VIR_FROM_THIS, code, __FILE__, \
^
In file included from vbox/vbox_V3_1.c:37:0:
vbox/vbox_tmpl.c:1041:14: note: 'rc' was declared here
nsresult rc;
^
Yet again, one uninitialized variable:
qemu/qemu_driver.c: In function 'qemuDomainBlockCommit':
qemu/qemu_driver.c:17194:9: error: 'baseSource' may be used uninitialized in this function [-Werror=maybe-uninitialized]
qemuDomainPrepareDiskChainElement(driver, vm, baseSource,
^
And another one:
storage/storage_backend_logical.c: In function 'virStorageBackendLogicalMatchPoolSource.isra.2':
storage/storage_backend_logical.c:618:33: error: 'thisSource' may be used uninitialized in this function [-Werror=maybe-uninitialized]
thisSource->devices[j].path))
^
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While trying to build with -Os I've encountered some build
failures.
util/vircommand.c: In function 'virCommandAddEnvFormat':
util/vircommand.c:1257:1: error: inlining failed in call to 'virCommandAddEnv': call is unlikely and code size would grow [-Werror=inline]
virCommandAddEnv(virCommandPtr cmd, char *env)
^
util/vircommand.c:1308:5: error: called from here [-Werror=inline]
virCommandAddEnv(cmd, env);
^
This function is big enough for the compiler to be not inlined.
This is the error message I'm seeing:
Then virDomainNumatuneNodeSpecified is exported and called from
other places. It shouldn't be inlined then.
In file included from network/bridge_driver_platform.h:30:0,
from network/bridge_driver_platform.c:26:
network/bridge_driver_linux.c: In function 'networkRemoveRoutingFirewallRules':
./conf/network_conf.h:350:1: error: inlining failed in call to 'virNetworkDefForwardIf.constprop': call is unlikely and code size would grow [-Werror=inline]
virNetworkDefForwardIf(const virNetworkDef *def, size_t n)
^
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Prior to commit id '3d021381' virDomainObjUpdateModificationImpact was
part of virDomainLiveConfigHelperMethod and the *flags if condition
VIR_DOMAIN_AFFECT_CONFIG checked the ->persistent boolean and made the
virDomainObjGetPersistentDef call.
Since the functions were split the ->persistent check is all that remained
and thus could be combined into one if statement.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Signed-off-by: John Ferlan <jferlan@redhat.com>
This parameter represents top level period cgroup
that limits whole domain enforcement period for a quota
Signed-off-by: Alexander Burluka <aburluka@virtuozzo.com>
This attribute is used to extend secondary PCI bar and expose it to the
guest as 64bit memory. It works like this: attribute vram is there to
set size of secondary PCI bar and guest sees it as 32bit memory,
attribute vram64 can extend this secondary PCI bar. If both attributes
are used, guest sees two memory bars, both address the same memory, with
the difference that the 32bit bar can address only the first part of the
whole memory.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1260749
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
We always place primary video device at first place, to make it easier
to create a qemu command or format an xml, but we should also set the
primary boolean for primary video device to 'true'.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Add Spice graphics gl attribute. qemu 2.6 should have -spice gl=on argument to
enable opengl rendering context (patches on the ML). This is necessary to
actually enable virgl rendering.
Add a qemuxml2argv test for virtio-gpu + spice with virgl.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
While reviewing how storage driver used ObjListPtr's for reference
in some recent secret driver patches to use the same mechanism, I came
across an instance where the wrong API was called for error paths after
successfully allocating the storage pool pointer and inserting into
the driver pool list.
The path is after virStoragePoolObjAssignDef succeeds - the 'def' passed
in is assigned to pool->def (or newDef) so it shouldn't be the only thing
deleted. The pool is now part of driver->pools.objs, so it would need to
be removed (as happens in the storagePoolCreateXML error paths).
Rather than calling virStoragePoolDefFree to free the def which is now
assigned to the pool, call virStoragePoolObjRemove to ensure the pool
element is removed from the driver list and that anything stored in pool
is properly handled by virStoragePoolObjFree including the call to
virStoragePoolDefFree for the pool->{def|newDef} element.
Checking whether x > 0 before looping over [0..x] items doesn't make
sense and multi-line body must have curly brackets around it.
Best viewed with '-w'.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
There's a check if a domain definition has any graphics card and
if so, we iterate over each one of them. This makes no sense,
because even if it has none we can still iterate over.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Seems like the natural fit, since we are already adding other XML bits
in the PostParse routine.
Previously AddImplicitControllers was only called at the end of XML
parsing, meaning code that builds a DomainDef by hand had to manually
call it. Now those PostParse callers get it for free.
There's some test churn here; xen xm and sexpr test suite bits weren't
calling this before, but now they are, so you'll see new IDE controllers.
I don't think this will cause problems in practice, since the code already
needs to handle these implicit controllers like in the case when a user
defines their own XML.
virDomainObjWait is designed to be called in a loop. Make sure we break
the loop in case the domain dies to avoid waiting for an event which
will never happen.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Commit f1a89a8 allowed parsing configs from /etc/libvirt
without validating the emulator capabilities.
Check for the presence of os->type.machine even if the
VIR_DOMAIN_DEF_PARSE_SKIP_OSTYPE_CHECKS flag is set,
otherwise the daemon can crash on carelessly crafted input
in the config directory.
https://bugzilla.redhat.com/show_bug.cgi?id=1267256
Our existing virHashForEach method iterates through all items disregarding the
fact, that some of the iterators might have actually failed. Errors are usually
dispatched through an error element in opaque data which then causes the
original caller of virHashForEach to return -1. In that case, virHashForEach
could return as soon as one of the iterators fail. This patch changes the
iterator return type and adjusts all of its instances accordingly, so the
actual refactor of virHashForEach method can be dealt with later.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Since no value in the virGICVersion enumeration is negative, a clever
enough compiler can report an error such as
src/conf/domain_conf.c:15337:75: error: comparison of unsigned enum
expression < 0 is always false [-Werror,-Wtautological-compare]
if ((def->gic_version = virGICVersionTypeFromString(tmp)) < 0 ||
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~
virGICVersionTypeFromString() can, however, return a negative value if
the input string is not part of the enumeration, so we definitely need
that check.
Work around the problem by storing the return value in a temporary int
variable.
The snapshot name generator truncates the original file name after a '.'
and replaces the suffix with the snapshot name. If two disks source
images differ only in the suffix portion, the generated name will be
duplicate.
Since this is a corner case just error out stating that a duplicate name
was generated. The user can work around this situation by providing
the file names explicitly.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1283085
Older gcc fails to see that the variable is set iff @hasPriority
== true in which case the former is set a value. Initialize the
value while declaring it to make the compiler shut up.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Due to bad design the vcpu sched element is orthogonal to the way how
the data belongs to the corresponding objects. Now that vcpus are a
struct that allow to store other info too, let's convert the data to the
sane structure.
The helpers for the conversion are made universal so that they can be
reused for iothreads too.
This patch also resolves https://bugzilla.redhat.com/show_bug.cgi?id=1235180
since with the correct storage approach you can't have dangling data.
