Keep the pointer to QEMU stderr output in qemuProcessQMP struct instead
of requiring the caller to provide it (and free it).
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Let's push the call to virQEMUCapsLogProbeFailure down the stack to
where the probing failure is detected.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
While qemuProcessQMPRun and virQEMUCapsInitQMPMonitor* functions called
from virQEMUCapsInit ignore some errors, the caller of virQEMUCapsInit
would report an error unless usedQMP is true anyway. And since usedQMP
can only be true if the probing code really succeeded (i.e., no errors
were ignored), we can just simplify the logic by not ignoring the errors
in the first place.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function contains two almost identical parts. Let's consolidate them
into a single helper function and call it twice.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In new process code, move from model where qemuProcessQMP struct can be
used to activate a series of Qemu processes to model where one
qemuProcessQMP struct is used for one and only one Qemu process.
By allowing only one process activation per qemuProcessQMP struct, the
struct can safely store process outputs like status and stderr, without
being overwritten, until qemuProcessQMPFree is called.
By doing this, process outputs like status and stderr can remain stored
in the qemuProcessQMP struct without being overwritten by subsequent
process activations.
The forceTCG parameter (use / don't use KVM) will be passed when the
qemuProcessQMP struct is initialized since the qemuProcessQMP struct
won't be reused.
Signed-off-by: Chris Venteicher <cventeic@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virQEMUCapsInitQMP now stops QEMU process in all execution paths,
before freeing the process structure.
The qemuProcessQMPStop function can be called multiple times without
problems... Won't attempt to stop processes and free resources multiple
times.
Follow the convention established in qemu_process of
1) alloc process structure
2) start process
3) use process
4) stop process
5) free process data structure
The process data structure persists after the process activation fails
or the process dies or is killed so stderr strings can be retrieved
until the process data structure is freed.
Signed-off-by: Chris Venteicher <cventeic@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
s/qemuProcessQMPAbort/qemuProcessQMPStop/ applied to change function
name used to stop QEMU processes in process code moved from
qemu_capabilities.
No functionality change.
The new name, qemuProcessQMPStop, is consistent with the existing
function qemuProcessStop used to stop Domain processes.
Signed-off-by: Chris Venteicher <cventeic@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
s/cmd/proc/ in process code imported from qemu_capabilities.
Signed-off-by: Chris Venteicher <cventeic@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add the const qualifier on non modified strings
(string only copied inside qemuProcessQMPNew)
so that const strings can be used directly in calls to
qemuProcessQMPNew in future patches.
Signed-off-by: Chris Venteicher <cventeic@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
QEMU process code in qemu_capabilities.c is moved to qemu_process.c in
order to make the code usable outside the original capabilities use
cases.
The moved code activates and manages QEMU processes without establishing
a guest domain.
This patch is a straight cut/paste move between files.
Signed-off-by: Chris Venteicher <cventeic@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We dropped support in commit 8e91a40 (November 2015), but some
occurrences still remained, even in live code.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reported-by: Thomas Huth <thuth@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Now that virStorageSource is a subclass of virObject we can use
virObjectUnref and remove virStorageSourceFree which was a thin wrapper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Since virStorageSource is now a subclass of virObject, we can use
VIR_AUTOUNREF instead.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Add virStorageSourceNew and refactor places allocating that structure to
use the helper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
My change in 112f3a8d0f was too drastic. The @charAlias
variable is initialized only if @monitor == true. However, it is
used even outside of that condition, at which point it's just
uninitialized pointer.
Reported-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The @tmpChr is looked up in domain definition based on user
provided chardev XML. Therefore, the alias must have been
allocated already when domain was started up.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This is basically an old artefact from 24b0821926 when the idea
was:
1) Build device string only to see if chardev has any -device
associated with it and thus if device_del is needed
2) Detach chardev using chardev_del
Now, that DEVICE and DEVICE_DELETED capabilities are assumed for
every domain 1) does not make sense anymore.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1624204
The guestfwd channels are -netdevs really. Hotunplug them as
such. Also, DEVICE_DELETED event is not triggered (surprisingly,
since we're not issuing device_del rather than netdev_del) and
associated chardev is removed automagically too. This means that
we need to do qemuDomainRemoveChrDevice() minus monitor call to
remove the chardev.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1624204
The guestfwd channels are -netdevs really. Hotplug them as such.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introduced by d86c876a66.
There is no real need to have "user-" prefix for chardev.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
So far we are passing @chr to qemuBuildChrDeviceStr. This is
suboptimal (in fact wrong) because @chr is just parsed XML
definition provided by user which by definition may lack some
information. On the other hand, @tmpChr is the one that was found
using @chr in domain definition so it contains the same amount of
information or more.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The code for creating external snapshots for an offline domain
called out to qemu-img without escaping commas in the manner
that qemu-img expects. This also fixes a typo in the comment.
Signed-off-by: Eric Blake <eblake@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Let's make use of the auto __cleanup capabilities cleaning up any
now unnecessary goto paths.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Let's make use of the auto __cleanup capabilities cleaning up any
now unnecessary goto paths.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since commit a7424faff QMP is always used.
Also, commit 932534e8 removed the last use of this apart from:
* parsing/formatting this in the caps cache
* using it as a temporary variable to know when to report an error
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
These functions do mostly the same things, and it would be
preferrable if they did them in mostly the same ways. This
also fixes a few violations to our code style guidelines.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
The function operates on a virDomainDef and is not tied to
device address assignment in any way, so it makes more sense
for it to live along with qemuDomainIs*() and the like.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Ideally we'd make all of them static, but there are a few
cases where we don't have a virDomainDef instance handy and
so they are the only option.
For the few ones we're forced to keep exporting, document
through comments that the alternative is preferred.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Now that we have added architecture checks to all
qemuDomainIs*() functions, we no longer need to perform the
same checks separately.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
There is very little overlap in the machine types available
on different architectures, so broadly speaking checking the
machine type is usually enough; regardless, it's better to
check the architecture as well.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
We want the signatures to be consistent, and also we're
going to start using the additional parameter next.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Make sure related functions, eg. all qemuDomainIs*(), are
close together instead of being sprinkled throughout both
the header and implementation file, and also that all
qemuDomainMachine*() functions are declared first since
we're going to make a bunch of them static later on.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
While the chances of the current checks resulting in false
positives are basically zero, it's still nicer to check for
the full prefix instead of the prefix's prefix.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
For consistency, let's use the semicolon for all definitions.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
QEMU plans to deprecate 'query-events' as it's non-extensible. Events
are also described by 'query-qmp-schema' so we can use that one instead.
This patch adds detection of events to
virQEMUCapsProbeQMPSchemaCapabilities using the same structure declaring
them for the old approach (virQEMUCapsEvents). This is possible as the
name is the same in the QMP schema and our detector supports that
trivially.
For any complex queries virQEMUCapsQMPSchemaQueries can be used in the
future.
For now we still call 'query-events' and discard the result so that it's
obvious that the tests pass. This will be cleaned up later.
https://bugzilla.redhat.com/show_bug.cgi?id=1673320
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
QEMU accidentally exposed the id of -drive (or same value as disk
serial, if provided) in one of the identifiers visible from the guest.
To avoid regression in case when -blockdev will be used we need to
always specify it ourselves.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The property allows to control the guest-visible content of the vendor
specific designator of the 'Device Identification' page of a SCSI
device's VPD (vital product data).
QEMU was leaking the id string of -drive as the value if the 'serial' of
the disk was not specified. Switching to -blockdev would impose an ABI
change.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
For SCSI, IDE, and AHCI cdroms the appropriate device types which select
the correct media are used. In qemu there's one other code path that
looks at -drive media=cdrom in the XEN pv code. Thankfully we don't
support it with qemu (see qemuBuildDiskDeviceStr). All other devices
ignore it as the comment states, thus we can drop that code.
The test fallout is expectedly only in the test added for uncommon cdrom
types.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Attempting to create an empty virtio-blk drive results into:
-device virtio-blk-pci,scsi=off,bus=pci.0,addr=0xc,drive=drive-virtio-disk1,id=virtio-disk1: Device needs media, but drive is empty
Attempting to eject media from virtio-blk based drive results into:
error: internal error: unable to execute QEMU command 'eject': Device 'drive-virtio-disk0' is not removable
Forbid configurations where users would attempt to use cdroms in virtio
bus.
Fix few wrong examples which are not really relevant to the tested code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Cast disk->bus to proper type and add missing values to the enum so it's
more obvious what types are supported.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The split of ide-disk into the two separate devices was introduced by
qemu commit 1f56e32a7f4b3 released in qemu v0.15.
Note that when compared to the previous commit which made sure that no
disk related tests were touched, in this case it's not as careful.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The split of scsi-disk into the two separate devices was introduced by
qemu commit b443ae67 released in qemu v0.15.
All changes to test files are not really related to disk testing thanks
to previous refactors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Since commit a4cda054e7 we are using 'ide-hd' and 'ide-cd' instead of
'ide-drive'. We also should probe capabilities for 'ide-hd' instead of
'ide-drive'. It is safe to do as 'ide-drive' is the common denominator
of both 'ide-hd' and 'ide-cd' so all the properties were common.
For now the test data are modified by just changing the appropriate type
when probing for caps.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Since commit 02e8d0cfdf we are using 'scsi-hd' and 'scsi-cd' instead of
'scsi-disk'. We also should probe capabilities for 'scsi-hd' instead of
'scsi-disk'. It is safe to do as 'scsi-disk' is the common denominator
of both 'scsi-hd' and 'scsi-cd' so all the properties were common.
For now the test data are modified by just changing the appropriate type
when probing for caps.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
This flag tells virDomainMigrateSetMaxSpeed and
virDomainMigrateGetMaxSpeed APIs to work on post-copy migration
bandwidth.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This typed parameter for virDomainMigrate3 and virDomainMigrateToURI3
APIs may be used for setting maximum post-copy migration bandwidth.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
So far migration parameters were changed only at the beginning of
migration mostly via an automatic translation from flags and typed
parameters. We need to export a few more functions to support APIs which
may set migration parameters while migration is already running.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Let's make the code flow easier to follow and get rid of the ugly endjob
label inside if branch.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Some migration parameters supported by libvirt may use units that differ
from the units used by QEMU for the corresponding parameters. For
example, libvirt defines migration bandwidth in MiB/s while QEMU expects
B/s. Let's add a unit field to qemuMigrationParamsTPMapItem for
automatic conversion when translating between libvirt's migration typed
parameters and QEMU's migration paramteres.
This patch is a preparation for future parameters as the existing
VIR_MIGRATE_PARAM_BANDWIDTH parameter is set using "migrate_set_speed"
QMP command rather than "migrate-set-parameters" for backward
compatibility.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
qemuDomainBlockPivot and qemuDomainBlockJobAbort need the job name for
cancelling or pivoting but were generating it locally instead of
accessing the existing copy in the job data structure.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The writing to an image actually starts when the copy job is initiated,
so checking this at the time of the pivot operation is too late.
Move the check to qemuDomainBlockCopyCommon. Note that modern qemu would
have prevented two writers with qcow2 so the slim possibility of a job
started with libvirtd without this patch missing the check is not really
worth worrying about.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
For copy and active commit jobs we record the state of the mirror so
that we can recover. The status XML was not saved in case of
qemuDomainBlockPivot due to an oversight.
Save the XML always when invoking qemuDomainBlockJobAbort even if
the job is not currently tracking any state. This will change later and
also this is not a particularly hot code path.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The checks and error messages are mostly the same across
all virtio-input devices, so we can avoid having multiple
copies of the same code.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
It will not work. This breaks qemu capabilities probing as a user.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
For normal starts (no incoming migration) the refresh of the QEMU
state must be done before the VCPUs getting started since otherwise
there might be a race condition between a possible shutdown of the
guest OS and the QEMU monitor queries.
This fixes "qemu: migration: Refresh device information after
transferring state" (93db7eea1b).
Signed-off-by: Marc Hartmayer <mhartmay@linux.ibm.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
If a domain has a disk that is type='network' we require specific
cache mode to allow migration with it (either 'directsync' or
'none'). This doesn't make much sense since network disks are
supposed to be safe to migrate by default.
At the same time, we should be checking for the actual source
type, not apparent type set in the domain XML.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Storage pools might want to specify format of the image when translating
the volume thus we can't add any default format when parsing the XML.
Add a explicit format when starting the VM and format is not present
neither by user specifying it nor by the storage pool translation
function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Post parse callback adds the 'raw' type only for local files. Remote
files can also have backing store (even local) so we should do this also
for network backed storage.
Note that virStorageFileGetMetadata always considers files with no type
as raw so we will not accidentally traverse the backing chain and allow
unexpected files being labelled with svirt labels.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In commit f80eae8c2a I was too agresive in removing properties of
-drive for empty drives. It turns out that qemu actually persists the
state of 'readonly' and the throttling information even for the empty
drive.
Removing 'readonly' thus made qemu open any subsequent images added via
the 'change' command as RW which was forbidden by selinux thanks to the
restrictive sVirt label for readonly media.
Fix this by formating the property again and bump the tests and leave a
note detailing why the rest of the properties needs to be skipped.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>). VIR_ONCE_GLOBAL_INIT is almost
exclusively called without an ending semicolon, but let's
standardize on using one like the other macros.
Add a dummy struct definition at the end of the macro, so
the compiler will require callers to add a semicolon.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>), and we have a mix of semicolon and
non-semicolon usage through the code. Let's standardize on using
a semicolon for VIR_LOG_INIT calls.
Drop the semicolon from the final statement of the macro, so
the compiler will require callers to add a semicolon.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>), and we have a mix of semicolon and
non-semicolon usage through the code. Let's standardize on using
a semicolon for VIR_ENUM_IMPL calls.
Move the verify() statement to the end of the macro and drop
the semicolon, so the compiler will require callers to add a
semicolon.
While we are touching these call sites, standardize on putting
the closing parenth on its own line, as discussed here:
https://www.redhat.com/archives/libvir-list/2019-January/msg00750.html
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>), and we have a mix of semicolon and
non-semicolon usage through the code. Let's standardize on using
a semicolon for VIR_ENUM_DECL calls.
Drop the semicolon from the final statement of the macro, so
the compiler will require callers to add a semicolon.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1503284
The way we currently start qemu from CPU affinity POV is as
follows:
1) the child process is set affinity to all online CPUs (unless
some vcpu pinning was given in the domain XML)
2) Once qemu is running, cpuset cgroup is configured taking
memory pinning into account
Problem is that we let qemu allocate its memory just anywhere in
1) and then rely in 2) to be able to move the memory to
configured NUMA nodes. This might not be always possible (e.g.
qemu might lock some parts of its memory) and is very suboptimal
(copying large memory between NUMA nodes takes significant amount
of time).
The solution is to set affinity to one of (in priority order):
- The CPUs associated with NUMA memory affinity mask
- The CPUs associated with emulator pinning
- All online host CPUs
Later (once QEMU has allocated its memory) we then change this
again to (again in priority order):
- The CPUs associated with emulator pinning
- The CPUs returned by numad
- The CPUs associated with vCPU pinning
- All online host CPUs
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This is mainly about /dev/sev and its default permissions 0600. Of
course, rule of 'tinfoil' would be that we can't trust anything, but the
probing code in QEMU is considered safe from security's perspective + we
can't create an udev rule for this at the moment, because ioctls and
file system permissions aren't cross-checked in kernel and therefore a
user with read permissions could issue a 'privileged' operation on SEV
which is currently only limited to root.
https://bugzilla.redhat.com/show_bug.cgi?id=1665400
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Instead of exposing /dev/sev to every domain, do it selectively.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
SEV has a limit on number of concurrent guests. From security POV we
should only expose resources (any resources for that matter) to domains
that truly need them.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
We should not give domains access to something they don't necessarily
need by default. Remove it from the qemu driver docs too.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
virtio-mmio is still used by default, so if PCI is desired
it's necessary to explicitly opt-in by adding an appropriate
<address type='pci' domain='0x0000' ... />
element to the corresponding device.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The 'qemu' binary used to provide the i386 emulator until it was renamed
to qemu-system-i386 in QEMU 1.0. Since we don't support such old
versions we don't need to check for 'qemu' when probing capabilities.
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Some clients poll virDomainGetBlockJobInfo rather than wait for the
VIR_DOMAIN_BLOCK_JOB_READY event. In some cases qemu can get to 100% and
still not reach the synchronised phase. Initiating a pivot in that case
will fail.
Given that computers are interacting here, the error that the job
can't be finalized yet is not handled very well by those specific
implementations.
Our docs now correctly state to use the event. We already do a similar
output adjustment in case when the progress is not available from qemu
as in that case we'd report 0 out of 0, which some apps also incorrectly
considered as 100% complete.
In this case we subtract 1 from the progress if the ready state is not
signalled by qemu if the progress was at 100% otherwise.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The virDomainDeviceInfo parameter is a large struct so it is preferrable
to pass it by reference instead of by value.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Be more sensible when setting labels of the target of a
virDomainBlockCopy operation. Previously we'd relabel everything in case
it's a copy job even if there's no unlabelled backing chain. Since we
are also not sure whether the backing chain is shared we don't relabel
the chain on completion of the blockjob. This certainly won't play nice
with the image permission relabelling feature.
While this does not fix the case where the image is reused and has
backing chain it certainly sanitizes all the other cases. Later on it
will also allow to do the correct thing in cases where only one layer
was introduced.
The change is necessary as in case when -blockdev will be used we will
need to hotplug the backing chain and thus labeling needs to be setup in
advance and not only at the time of pivot. To avoid multiple code paths
move the labeling now.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Rather than passing in a virStorageSource which would override the
originally passed disk->src we can now drop passing in a disk completely
as all functions called inside here require a virStorageSource.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Use the functions designed to deal with single images as the *Disk
functions were just wrappers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Previously there weren't any suitable functions which would allow
setting up host side of a full disk chain so we've opted to replace the
'src' in a virDomainDiskDef by the new image source.
That is now no longer necessary so remove the munging.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The same can be achieved by using qemuSecurity[Set|Restore]ImageLabel.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The flag will control the VIR_SECURITY_DOMAIN_IMAGE_LABEL_BACKING_CHAIN
flag of the security driver image labeling APIs.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Security labeling of disks consists of labeling of the disk image
itself and it's backing chain. Modify
virSecurityManager[Set|Restore]ImageLabel to take a boolean flag that
will label the full chain rather than the top image itself.
This allows to delete/unify some parts of the code and will also
simplify callers in some cases.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Since the disk is necessary only to get the source modify the functions
to take the source directly and rename them to
qemu[Setup|Teardown]ImageChainCgroup.
Additionally drop a pointless comment containing the old function name.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
When we need to detect a chain for a image which will become the new
source for a disk (e.g. after a disk media change or a blockjob) we'd
need to replace disk->src temporarily to do so.
Move the 'disksrc' temporary variable to an argument and adjust callers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
The function at first validates the top image of the chain, then
traverses the chain as declared in the XML (if any) and then procedes to
detect the rest of the chain from images. All of the steps have their
own temporary iterator.
Clarify the use scope of the steps by introducing a new temp variable
holding the top level source and adding comments.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
This reverts commit 8b035c84d8.
The MTTCG impl in QEMU does allow pinning vCPUs.
When the guest is running we already check if pinning is
possible in the qemuDomainPinVcpuLive method, so this
check was adding no benefit.
When the guest is not running, we cannot know whether the
subsequent launch will use MTTCG or TCG, so we must allow
the pinning request. If the guest does use TCG on the next
launch it will fail, but this is no worse than if the user
had done a virDomainDefineXML with an XML doc specifying
vCPU pinning.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
MTTCG is the new multi-threaded impl of TCG which follows
KVM in having one host OS thread per vCPU. Historically
we have discarded all PIDs reported for TCG guests, but
we must now selectively honour this data.
We don't have anything in the domain XML that indicates
whether a guest is using TCG or MTTCG. While QEMU does
have an option (-accel tcg,thread=single|multi), it is
not desirable to expose this in libvirt. QEMU will
automatically use MTTCG when the host/guest architecture
pairing is known to be safe. Only developers of QEMU TCG
have a strong reason to override this logic.
Thus we use two sanity checks to decide if the vCPU
PID information is usable. First we see if the PID
duplicates the main emulator PID, and second we see
if the PID duplicates any other vCPUs.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Add documentation that the 'VIR_DOMAIN_BLOCK_COPY_TRANSIENT_JOB' flag
is auto-assumed if the block copy job is started while the VM is
transient and remove the restriction to define the domain when copy
is running.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
disk->mirror would not be cleared while the local pointer was freed in
qemuDomainBlockCommit if qemuDomainObjExitMonitor or qemuBlockJobDiskNew
would return a failure.
Since block job handling is executed in the separate handler which needs
a qemu job, we don't need to pre-set the mirror state prior to starting
the job. Similarly the block copy job does not do that.
Move the setting of the data after starting the job so that we avoid
this problem.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
While this should not be necessary as we clear it in the event handler,
let's be sure and clear it prior to starting the job.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Switching a block job to some states (e.g. QEMU_BLOCKJOB_STATE_READY)
might not require a job, thus if it will become ready asynchronously we
should not overwrite the state any more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
While the callers should make sure that they don't call
qemuBlockJobEmitEvents for any internal state or job, let's add checks
that prevents us from emitting wrong events altogether.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
We have this very handy macro called VIR_STEAL_PTR() which steals
one pointer into the other and sets the other to NULL. The
following coccinelle patch was used to create this commit:
@ rule1 @
identifier a, b;
@@
- b = a;
...
- a = NULL;
+ VIR_STEAL_PTR(b, a);
Some places were clean up afterwards to make syntax-check happy
(e.g. some curly braces were removed where the body become a one
liner).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Use qemuBuildControllersCommandLine since it builds the command line
for (nearly) all controllers, not just one.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Now that the inner loop does not require any other variables,
it can be easily separated. Apart from reducing the indentation
level this will allow it to be called from different code paths.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Now that it's no longer needed, remove the argument.
This removes the last helper variable in
qemuBuildControllerDevCommandLine.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
qemuBuildLegacyUSBControllerCommandLine is the only place where
we need to count the USB controllers.
Count them again instead of keeping track in a variable passed to
qemuBuildControllerDevStr.
This removes the need for another variable in the loop in
qemuBuildControllerDevCommandLine.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Count them in qemuBuildLegacyUSBControllerCommandLine to remove
yet another variable accessed from the loop in
qemuBuildControllerDevCommandLine.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
This removes the need to mark it in the 'usbcontroller' variable.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Move out the code formatting "-usb" on the QEMU command line.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Switch qemuBuildVirtioDevStr to use virDomainDeviceSetData: callers
pass in the virDomainDeviceType and the void * DefPtr. This will
save us from having to repeatedly extend the function argument
list in subsequent patches.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Current code essentially duplicates the same logic, but misses
some cases (like vhost-vsock-device).
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The vhost-scsi device string should depend on the requested
address type, not strictly on the emulated arch. This is the
same logic used by qemuBuildVirtioDevStr, and this particular
path is already tested in the hostdev-scsi-vhost-scsi-ccw tests
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Move the rng->model == VIRTIO check to parse time. This also
allows us to remove similar checks throughout the qemu driver
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
If we validate that memballoon is NONE|VIRTIO at parse time,
we can drop similar checks elsewhere in the qemu driver
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
This will be extended in the future, so let's simplify things by
centralizing the checks.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Asserting the value we set four lines earlier in qemuBlockjobState
doesn't buy us any safety (if the public header adds a value, we end
up skipping that value without the compiler warning us of our gap);
what we really want is to assert that the value auto-assigned by the
compiler matches the actual last value in the public headers (as was
done below for qemuBlockJobType). Add useful comments while at it.
Signed-off-by: Eric Blake <eblake@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
Hanlde all the possible failure codes as per ACPI standard documented in
the function header.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1660410
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We forgot to document the specific fields for the 0x103 and 0x200
sources which are tied to device removal and device hotplug
respectively.
The value description is based on the ACPI 6.2A standard Table 6-207 and
Table 6-208. At the time of writing of this patch the standard can be
accessed e.g. at:
https://www.uefi.org/sites/default/files/resources/ACPI%206_2_A_Sept29.pdf
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The device xml parser code does not set "model" while parsing the
following XML:
<interface type='hostdev'>
<source>
<address type='pci' domain='0x0002' bus='0x01' slot='0x00' function='0x2'/>
</source>
</interface>
The net->model can be NULL and therefore must be compared using
STREQ_NULLABLE instead of plain STREQ.
Fixes: ac47e4a622 (qemu: replace "def->nets[i]" with "net" and "def->sounds[i]" with "sound")
Fixes: c7fc151eec (qemu: assign virtio devices to PCIe slot when appropriate)
Signed-off-by: Radoslaw Biernacki <radoslaw.biernacki@linaro.org>
Signed-off-by: dann frazier <dann.frazier@canonical.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add a capability check to qemuDomainDefValidate and refuse to start
a domain with VNC graphics if the TLS secret was set in qemu.conf
and it's not supported.
Note that qemuDomainSecretGraphicsPrepare does not generate any
secret data if the capability is not present and qemuBuildTLSx509BackendProps
is not called at all.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Use the password stored in the secret driver under
the uuid specified by the vnc_tls_x509_secret_uuid
option in qemu.conf.
https://bugzilla.redhat.com/show_bug.cgi?id=1602418
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Add an option that lets the user specify the secret
that unlocks the server TLS key.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Be generic instead of trying to enumerate all the involved
device types.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Instead of hardcoding the TLS creds alias in
qemuBuildGraphicsVNCCommandLine, store it
in the domain private data.
Given that we only support one VNC graphics
and thus have only one alias per-domain,
this is overengineered, but it will allow us
to prepare the secret upfront when we start
supporting encrypted server TLS keys.
Note that the alias is not formatted anywhere
since we won't need to access it after domain
startup.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Switch the function to use VIR_AUTOFREE and VIR_AUTOPTR macros
to get rid of the cleanup section.
Requested-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Switch the function to use VIR_AUTOFREE and VIR_AUTOPTR macros
to get rid of the cleanup section.
Requested-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Switch the function to use VIR_AUTOFREE and VIR_AUTOPTR macros
to get rid of the cleanup section.
Requested-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Switch the function to use VIR_AUTOFREE and VIR_AUTOPTR macros
to get rid of the cleanup section.
Requested-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
If a -drive has no image, using image properties makes qemu whine that
they should not be used.
This patch stops formating cache/readonly/... for empty drives
for the pre-blockdev syntax. Unfortunately those parameters can't be
added later when inserting media, but on the other hand qemu will start
with an empty drive.
Since we already were able to start a VM with such config previously due
to qemu ignoring them I've opted just to skip formatting them.
Additionally with -blockdev support it will work as expected as the
image properties will be formatted when adding the image itself which is
not possible without it.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1651457
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When commit 361c8dc17 added support for hotplugging the i6300esb
watchdog device (first in libvirt-3.9.0), it accidentally contstructed
the commandline for the device_add command before allocating a PCI
address for the device. With no PCI address specified in the command,
the watchdog would simply be placed at the lowest unused PCI slot.
On a 440fx guest, this doesn't cause a problem, because libvirt's PCI
address allocation algorithm would most likely give the same address
anyway (usually a slot on pci-root), so nobody noticed the omission of
address from the command.
But on a Q35 guest, the lowest unused PCI slot is on pcie-root, which
doesn't support hotplug; libvirt knows enough to assign a PCI address
that is on a pcie-to-pci-bridge (because its slots *do* support
hotplug), but qemu doesn't, so if there is no PCI address in the
command, qemu just tries to plug the new device into pcie-root, and
fails because it doesn't support hotplug, e.g.:
error: Failed to attach device from watchdog.xml
error: internal error: unable to execute QEMU command 'device_add':
Bus 'pcie.0' does not support hotplugging
The solution is simply to build the command string after assigning a
PCI address, not before.
Resolves: https://bugzilla.redhat.com/1666559
Signed-off-by: Laine Stump <laine@laine.org>
Reviewed-by: John Ferlan <jferlan@redhat.com>
If code in the @actualType switch needs to have/know which PCI
Address is being used, then we must assign it earlier. In particular
a vhost-user device needs to call qemuDomainSupportsNicdev which
requires an address to be defined.
Signed-off-by: Wang Yechao <wang.yechao255@zte.com.cn>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
This is the only patch that mixes various augeas entry
groups in one function.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Split out parts of the config parsing code to make
the parent function easier to read.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Currently the job name corresponds to the disk the job belongs to. For
jobs which will not correspond to disks we'll need to track the name
separately.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that the data is per-job, we don't really need to bother with
finishing the synchronous job handling if the job is already terminated.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rather than storing the presence of the blockjob in a flag we can bind
together the lifecycle of the job with the lifecycle of the object which
is tracking the data for it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Instead of passing in the disk information, pass in the job and name the
function accordingly.
Few callers needed to be modified to have the job pointer handy.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The processing function modifies the job state so it should make sure
that the variable holding the new state is cleared properly and not the
caller. The caller should only deal with the job state and not the
transition that happened.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The job error can be safely accessed in the job structure, so we don't
need to propagate it through qemuBlockJobUpdateDisk.
Drop the propagation and refactor any caller that pased non-NULL error.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The same message is reported in 3 distinct places. Move it out into a
single function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add a field tracking the current state of job so that it can be queried
later. Until now the job state e.g. that the job is _READY for
finalizing was tracked only for mirror jobs. Add tracking of state for
all jobs.
Similarly to 'qemuBlockJobType' this maps the existing states of the
blockjob from virConnectDomainEventBlockJobStatus to
'qemuBlockJobState' so that we can track some internal states as well.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Modify qemuBlockJobSyncBeginDisk to operate on qemuBlockt sJobDataPtr and
rename it accordingly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We can properly track the job type when starting the job so that we
don't have to infer it later.
This patch also adds an enum of block job types specific to qemu
(qemuBlockjobType) which mirrors the public block job types
(virDomainBlockJobType) but allows for other types to be added later
which will not be public.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Block jobs can also happen on objects which are not a disk at a given
point (e.g. the frontend was not hotplugged yet) and thus will be
eventually kept separately. Add a reference back to the disk for
blockjobs which do correspond to a disk.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
If the job wasn't started, we don't need to end the synchronous job. Add
a note and drop the unnecessary calls.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rather than directly modifying fields in the qemuBlockJobDataPtr
structure add a bunch of fields which allow to do the transitions.
This will help later when adding more complexity to the job handling.
APIs introduced in this patch are:
qemuBlockJobDiskNew - prepare for starting a new blockjob on a disk
qemuBlockJobDiskGetJob - get the block job data structure for a disk
For individual job state manipulation the following APIs are added:
qemuBlockJobStarted - Sets the job as started with qemu. Until that
the job can be cancelled without asking qemu.
qemuBlockJobStartupFinalize - finalize job startup. If the job was
started in qemu already, just releases
reference to the job object. Otherwise
clears everything as if the job was never
started.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Extract the disk mirroring startup code from the loop into a separate
function to allow cleaner cleanup paths.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The field is used to note the state the job has transitioned to while
handling the blockjob state change event. Rename the field so that it's
obvious that this is the new state and not the general state of the
blockjob.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reference counting will simplify semantics of the lifecycle of the
object.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When cancelling job after a reconnect we can now use the disk block job
state rather than having to re-detect it in the migration code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that we reprobe the status of blockjobs when reconnecting in
addition to handling job status events, the status reprobing can be
removed as we always track the correct status internally.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Block job state was widely untracked by libvirt across restarts which
was allowed by a stateless block job finishing handler which discarded
disk state and redetected it. This is undesirable since we'll need to
track more information for individual blockjobs due to -blockdev
integration requirements.
In case of legacy blockjobs we can recover whether the job is present at
reconnect time by querying qemu. Adding tracking whether a job is
present will allow simplification of the non-shared-storage cancellation
code.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Internally we do a 'block-copy' to accomodate non-shared storage
migration but the code did not fill in that the block job was active on
the disk when starting the copy job. Since we handle block jobs finishes
regardless of having it registered it's not a problem but soon will
become one.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
qemuBlockJobEventProcessLegacy was getting too big. Remove handling of
completed jobs in a separate function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This will handle blockjob finalizing for the old approach so rename it
accordingly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'cleanup' label was accessed only from a jump to 'error'. Consolidate
everyting into 'cleanup'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Struct qemuDomainDiskPrivate was holding multiple variables connected to
a disk block job. Consolidate them into a new struct qemuBlockJobData.
This will also allow simpler extensions to the block job mechanisms.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The blockjob module uses 'qemuDomainAsyncJob' in it's public headers.
As I plan adding a new structure containing job data which will need to
be included in "qemu_domain.h" it's necessary to break the circular
dependency.
Convert 'qemuDomainAsyncJob' type to 'int' as it's an enum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All the public APIs of the qemu_blockjob module operate on a 'disk'.
Since I'll be adding APIs which operate on a job later let's rename the
existing ones.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function is now only called locally. Some code movement was
necessary to avoid forward declarations.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Replace use of qemuBlockJobEventProcess with the general helper. A small
tweak is required to pass in the 'type' and 'status' of the job via the
appropriate private data variables.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The event reports the disk path to identify the disk which makes sense
only for local disks. Additionally network backed disks like NBD don't
need to have a path so the callback would return NULL.
Report VIR_DOMAIN_EVENT_ID_BLOCK_JOB only for non-empty local disks.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Put the emitting of VIR_DOMAIN_EVENT_ID_BLOCK_JOB and
VIR_DOMAIN_EVENT_ID_BLOCK_JOB_2 into a separate function.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Instead of copying the default default values upfront
and then wondering whether the user has given us a new default,
leave the per-usage TLS certdirs and secrets empty during
parsing and only fill them afterwards if they weren't provided
by the user.
This means that instead of looking whether the specific certdir
paths match the default default, the Validate function (which
is called in between parsing and setting the defaults) can error
out for missing directories if the value is present, because
it must've come from the user.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Introduce a set of bool variables with the 'present' suffix
to track whether the value was actually specified.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Turns out, that there are few bugs that are not that trivial to
fix (e.g. around block jobs). Instead of rushing in not
thoroughly tested fixes disable the feature temporarily for the
release.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
ACKed-by: Peter Krempa <pkrempa@redhat.com>
When commit 1d94b3e7 added code to walk the [n]hostdevs list looking
to add shared hostdevs, it should've filtered any hostdevs that were
not SCSI hostdev's.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The session daemon is unable to set XATTRs in 'trusted'
namespace because it doesn't run as privileged process.
Therefore, when creating the default qemu config enable
rememberOwner only when running as privileged process.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since its introduction in commit 0977b8aa07 (released in v1.2.14)
qemuAgentGetInterfaces calls qemuAgentCommand with needReply=false,
which allows qemuAgentCommand to return 0 even when it did not get
any reply from the agent.
Set needReply to true, since we dereference it right after.
This can be hit if libvirt is waiting for an event from the agent
(e.g. shutdown) and the agent cannot reply in time (e.g. due to
the guest being shut down), as reported in:
https://bugzilla.redhat.com/show_bug.cgi?id=1663051
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
In the previous commit we are using uint64_t for storing subnet
prefix and interface id that qemu reports in
RDMA_GID_STATUS_CHANGED event. We also report them in some debug
messages. This poses a problem because uint64_t can be UL or ULL
depending on the host architecture and hence we wouldn't know
which format to use. Switch to ULL which is big enough and
doesn't suffer from the issue.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
This event is emitted on the monitor when a GID table in pvrdma device
is modified and the change needs to be propagate to the backend RDMA
device's GID table.
The control over the RDMA device's GID table is done by updating the
device's Ethernet function addresses.
Usually the first GID entry is determine by the MAC address, the second
by the first IPv6 address and the third by the IPv4 address. Other
entries can be added by adding more IP addresses. The opposite is the
same, i.e. whenever an address is removed, the corresponding GID entry
is removed.
The process is done by the network and RDMA stacks. Whenever an address
is added the ib_core driver is notified and calls the device driver's
add_gid function which in turn update the device.
To support this in pvrdma device we need to hook into the create_bind
and destroy_bind HW commands triggered by pvrdma driver in guest.
Whenever a changed is made to the pvrdma device's GID table a special
QMP messages is sent to be processed by libvirt to update the address of
the backend Ethernet device.
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
