The secret object is used to pass data to the backend so it's better
fitting to base the secret object name on the SCSI host device backend
name.
Since we store the object alias in the status XML this modification is
safe in regards to existing guests.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allocate the nodename in the setup function rather than in the command
line generator.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function is no longer used once we setup per-hostdev data.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Historically we've prepared secrets for all objects in one place. This
doesn't make much sense and it's semantically more appealing to prepare
everything for a single device type in one place.
Move the setup of the (iSCSI|SCSI) hostdev secrets into a new function
which will be used to setup other things as well in the future.
This is a similar approach we do for disks.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
For upgrade reasons so that we can modify the used nodename we must
generate the old version for all status XMLs which don't have it stored
explicitly.
The change will be required as using the user-provided alias may result
in too-long nodenames which will be rejected by qemu.
Add code which fills in the appropriate old value and add test cases to
validate that it's added and also that existing nodenames are not
overwritten.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We are dropping the only reference here so that the event loop thread
is going to be exited synchronously. In order to avoid deadlocks we
need to unlock the VM so that any handler being called can finish
execution and thus even loop thread be finished too.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The list archives, people.redhat.com and bugzilla all support
https.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Neal Gompa <ngompa13@gmail.com>
When editing a domain with hotplug enabled, I removed the only
NUMA node it had and got no error. I got the error later though,
when starting the domain. This is not as user friendly as it can
be. Move the validation call out from command line generator and
into domain validator (which is called prior to starting cmd line
generation anyway).
When doing this, I had to remove memory-hotplug-nonuma xml2xml
test case because there is no way the test case can succeed,
obviously.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Since the macro no longer includes the 'ignore_value'
statement, stop putting another empty statement after it.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Many of our functions start with a DEBUG statement.
Move the statements after declarations to appease
our coding style.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Introduce a new device element "<audio>" which allows
to map guest sound device specified using the "<sound>"
element to specific audio backend.
Example:
<sound model='ich7'>
<audio id='1'/>
</sound>
<audio id='1' type='oss'>
<input dev='/dev/dsp0'/>
<output dev='/dev/dsp0'/>
</audio>
This block maps to OSS audio backend on the host using
/dev/dsp0 device for both input (recording)
and output (playback).
OSS is the only backend supported so far.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
After the recent changes, this function is now always returning
zero. Turn it to 'void' to relieve callers from checking it.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We don't need the auto-alignment now that the user is handling
it by hand.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Next patch will use it outside of qemu_domain.c.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This function is not changing the domain definition, it's only
reading from it. The function is going to be used from another
function which already takes const virDomainDef. Make the @def
const to avoid typecasting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Commit 4362068979 moved the function to
util/virqemu.c which is compiled also on win32 and geteuid()/getegid()
doesn't exist there.
Move it to qemu_domain.c which is compiled only when the qemu driver is
enabled. Originally I didn't want to put it here as qemu_domain.c is a
code dump for helper functions but this is the least invasive fix.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Move the code to qemu_domain.c so that it can be reused in other parts
of the qemu driver. 'qemu_domain' was chosen as we check the domain
state after closing the wrapper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Move the code to qemu_domain.c so that it can be reused in other parts
of the qemu driver. 'qemu_domain' was chosen as the permissions are
based on the domain configuration.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Both parsing and formatting of NBD migration jobs is QEMU specific and
since we're trying to create a hypervisor-agnostic module out of
qemu_domainjob.c, move the NBD XML handling bits to the qemu_domain
module instead. Additionally, move the respective NBD XML calls to
the 'parseJob'/'formatJob' callbacks of the
qemuDomainObjPrivateJobCallbacks structure.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
The qemu_domain.c file is big as is and we should split it into
separate semantic blocks. Start with code that handles domain
namespaces.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Both accept a NULL value gracefully and virStringFreeList
does not zero the pointer afterwards, so a straight replace
is safe.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Commit v6.4.0-61-g201bd5db63 started to fill the default value for
//cpu/@migratable attribute according to QEMU support. However, active
domains either have the migratable attribute already set or the
capabilities we use for checking the QEMU support were created by older
libvirt which didn't probe for this specific capability. Thus we should
leave active domains alone when parsing their XMLs.
https://bugzilla.redhat.com/show_bug.cgi?id=1857967
Reported-by: Mark Mielke <mark.mielke@gmail.com>
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
When doing a block copy, there is another chain of images attached to a
disk. Consider them as well when looking up a disk using nodename.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
To remove dependecy of `qemuDomainJob` on job specific
paramters, a `privateData` pointer is introduced.
To handle it, structure of callback functions is
also introduced.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This partially reverts commit 5331c4804f.
The original commit mistakenly thought virFileCacheLookup did not set
an error. In fact the only case it doesn't set an error for is when
the cache key is NULL. This in fact the fault of the caller for passing
an invalid cache key, so doesn't need to be handled.
This caller bug was fixed by checking for a NULL binary in the
virQEMUCapsCacheLookupDefault method.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
When upgrading from a libvirt which didn't format private data of a
virStorageSource representing an iSCSI hostdev source, we might need to
generate some internal data so that the code still works as if it was
present in the status XML.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We need the alias to deal with hot-unplug of the hostdev. Use
qemuDomainSecretInfoDestroy which clears only the secrets and not the
alias. The same function is used also for handling disk secrets.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Choose a TPM 2 device for the backend as default for the CRB interface
since TPM 1.2 would not work.
This patch addresses BZ 1781913: https://bugzilla.redhat.com/show_bug.cgi?id=1781913
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
The firmware (SLOF) on QEMU for ppc64 does not support TPM 1.2, so
prevent the choice of TPM 1.2 when the SPAPR device model is chosen
and use a default of '2.0' (TPM 2) for the backend.
This patch addresses BZ 1781913: https://bugzilla.redhat.com/show_bug.cgi?id=1781913
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Move setting the TPM default version out of the validation function into
the post parse function.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Functions `qemuDomainObjPrivateXMLParseJob` and
`qemuDomainObjPrivateXMLFormatJob` are moved from
`qemu_domain` to `qemu_domainjob`.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
`qemuDomainObjPrivatePtr` parameter was avoided being passed
as a paramter in functions `qemuDomainObjPrivateXMLParseJob`
and `qemuDomainObjPrivateXMLFormatJob`, as we already pass
`virDomainObjPtr`, which can be used to get `privateData`
pointer.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
While moving the code, qemuDomainNamespace also was moved
to `qemu_domainjob`. Hence it is moved back to `qemu_domain`
where it will be more appropriate.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Setup the TLS secret when preparing a virStorageSource for use.
https://bugzilla.redhat.com/show_bug.cgi?id=1602328
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Store the required data in the private data of a storage source and
ensure that the 'alias' of the secret is formatted in the status XML.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Add a helper which will always return the storage source private data
even if it was not allocated before.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
A few commits back (in v6.4.0-131-gbdb8f2e418) the post parse
function for domain interface was changed so that it doesn't fill
in model for hostdev types of interfaces (including network type
interfaces which would end up hostdevs).
While the idea is sound, the execution can be a bit better:
virDomainNetResolveActualType() which is used to determine
runtime type of given interface is heavy gun - it connects to
network driver, fetches network XML, parses it. This all is
followed by check whether the interface doesn't already have
model set (from domain XML).
If we switch the order of these two checks then the short circuit
evaluation will ensure the expensive check is done only if really
needed.
This commit in fact fixes qemuxml2xmltest which due to lacking
fake network driver tries to connect to network:///session and
start the virtnetworkd. Fortunately, because of
v6.3.0-25-gf28fbb05d3 it fails to do so and
virDomainNetResolveActualType() returns -1. The only reason we
don't see the test failing is because our input XMLs have model
and thus we are saved by the latter (now former) check.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
All the domain job related APIs were present in `qemu_domain.c`
along with the other domain APIs. In this patch, we move all the
qemu domain job APIs into a separate file.
Also, in this process, `qemuDomainTrackJob()`,
`qemuDomainFreeJob()`, `qemuDomainInitJob()` and
`qemuDomainObjSaveStatus()` were converted to a non-static
funciton and exposed using `qemu_domain.h`.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In functions `qemuDomainObjInitJob`, `qemuDomainObjResetJob`,
`qemuDomainObjResetAgentJob`, `qemuDomainObjResetAsyncJob`,
`qemuDomainObjFreeJob`, `qemuDomainJobAllowed`,
`qemuDomainNestedJobAllowed` we avoid sending the complete
qemuDomainObjPrivatePtr as parameter and instead just send
qemuDomainJobObjPtr.
This is done in a effort to separating the qemu-job APIs into
a spearate file.
Signed-off-by: Prathamesh Chavan <pc44800@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The "virsh domcapabilities --arch ppc64" command will fail with no
error message set if qemu-system-ppc64 is not currently installed.
This is because virQEMUCapsCacheLookup() does not report any error
message if not capabilities can be obtained from the cache. Almost
all methods calling this expected an error to be set on failure.
Once that's fixed though, we see a further bug which is that
virQEMUCapsCacheLookupDefault() is passing a NULL binary path to
virQEMUCapsCacheLookup(), so we need to catch that too.
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Previous patch handled the conversion of def->tpm to the
array def->tpms and the XML parsing logic. This patch handles
the validations needed to ensure the intended behavior.
The existing qemuValidateDomainDeviceDefTPM() function was updated
to guarantee that the VIR_DOMAIN_TPM_MODEL_SPAPR_PROXY model is
exclusive to PPC64 guests and to the VIR_DOMAIN_TPM_TYPE_PASSTHROUGH
backend.
A new function called qemuDomainDefTPMsPostParse() was added to guarantee
that the following combinations in the same domain are valid:
- a single TPM device
- a single TPM Proxy device
- a single TPM + single TPM Proxy devices
And these combinations in the same domain are NOT valid:
- 2 or more TPM devices
- 2 or more TPM Proxy devices
Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
A TPM Proxy device can coexist with a regular TPM, but the
current domain definition supports only a single TPM device
in the 'tpm' pointer. This patch replaces this existing pointer
in the domain definition to an array of TPM devices.
All files that references the old pointer were adapted to
handle the new array instead. virDomainDefParseXML() TPM related
code was adapted to handle the parsing of an extra TPM device.
TPM validations after this new scenario will be updated in
the next patch.
Tested-by: Satheesh Rajendran <sathnaga@linux.vnet.ibm.com>
Reviewed-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
New semantics of the bitmap handling don't need this. Remove the field
and all uses of it including the status XML.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Libvirt allows the user to define an incomplete NUMA topology, where
the sum of all CPUs in each cell is less than the total of VCPUs.
What ends up happening is that QEMU allocates the non-enumerated CPUs
in the first NUMA node. This behavior is being flagged as 'to be
deprecated' at least since QEMU commit ec78f8114bc4 ("numa: use
possible_cpus for not mapped CPUs check").
In [1], Maxiwell suggested that we forbid the user to define such
topologies. In his review [2], Peter Krempa pointed out that we can't
break existing guests, and suggested that Libvirt should emulate the
QEMU behavior of putting the remaining vCPUs in the first NUMA node
in these cases.
This patch implements Peter Krempa's suggestion. Since we're going
to most likely end up with disjointed NUMA configuration in node 0
after the auto-fill, we're making auto-fill dependent on QEMU_CAPS_NUMA.
A following patch will update the documentation not just to inform
about the auto-fill mechanic with incomplete NUMA topologies, but also
to discourage the user to create such topologies in the future. This
approach also makes Libvirt independent of whether QEMU changes
its current behavior since we're either auto-filling the CPUs in
node 0 or the user (hopefully) is aware that incomplete topologies,
although supported in Libvirt, are to be avoided.
[1] https://www.redhat.com/archives/libvir-list/2019-June/msg00224.html
[2] https://www.redhat.com/archives/libvir-list/2019-June/msg00263.html
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
No default model should be added to the interface
entry at post parse when its actual network type is hostdev
as doing so might cause a mismatch between the interface
definition and its actual device type.
Signed-off-by: Paulo de Rezende Pinatti <ppinatti@linux.ibm.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Before QEMU introduced migratable CPU property, "-cpu host" included all
features that could be enabled on the host, even those which would block
migration. In other words, the default was equivalent to migratable=off.
When the migratable property was introduced, the default changed to
migratable=on. Let's record the default in domain XML.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
To prepare for a conversion to GObject, we need virObjectUnref
to have the same API design as g_object_unref, which means it
needs to be void.
A few places do actually care about the return value though,
and in these cases a thread local flag is used to determine
if the dispose method was invoked.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
'tftp' storage protocol was supported by qemu until 2.7.0. Add an
interlock when blockdev is used and drop the test case for it as it's
IMO not worth adding another test file just for that.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
==156803== 58 (40 direct, 18 indirect) bytes in 1 blocks are definitely lost in loss record 306 of 463
==156803== at 0x4839EC6: calloc (vg_replace_malloc.c:762)
==156803== by 0x5791AC0: g_malloc0 (in /usr/lib64/libglib-2.0.so.0.6400.1)
==156803== by 0x48F60DC: virAlloc (viralloc.c:48)
==156803== by 0x18DD74: qemuStorageSourcePrivateDataAssignSecinfo (qemu_domain.c:2384)
==156803== by 0x18DFD5: qemuStorageSourcePrivateDataParse (qemu_domain.c:2433)
==156803== by 0x49EC884: virDomainStorageSourceParse (domain_conf.c:9857)
==156803== by 0x49ECBA3: virDomainDiskBackingStoreParse (domain_conf.c:9909)
==156803== by 0x49F129D: virDomainDiskDefParseXML (domain_conf.c:10785)
==156803== by 0x4A1804E: virDomainDefParseXML (domain_conf.c:21543)
==156803== by 0x4A1B60C: virDomainObjParseXML (domain_conf.c:22254)
==156803== by 0x4A1BFE9: virDomainObjParseNode (domain_conf.c:22429)
==156803== by 0x4A1C0B4: virDomainObjParseFile (domain_conf.c:22443
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Modern way to store <auth> and <encryption> of a <disk> is under
<source>. This was added to mirror how <backingStore> handles these and
in fact they are relevant to the source rather than to any other part of
the disk. Historically we allowed them to be directly under <disk> and
we need to keep compatibility.
This wasn't a problem until introduction of -blockdev in qemu using of
<auth> or <encryption> plainly wouldn't work with backing chains.
Now that it works in backing chains and can be moved back and forth
using snapshots/block-commit we need to ensure that the original
placement is properly kept even if the source changes.
To achieve the above semantics we need to store the preferred placement
with the disk definition rather than the storage source definitions and
also ensure that the modern way is chosen when the VM started with
<source/encryption> only in the backing store.
https://bugzilla.redhat.com/show_bug.cgi?id=1822878
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Any non-raw block layer feature will not work with raw SCSI command
passthrough via 'scsi-block'. Explicitly refuse use of luks encryption,
storage slices and copy on read.
https://bugzilla.redhat.com/show_bug.cgi?id=1820040
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Historically the virtio-blk frontend by default enabled SCSI emulation
and tried to do SCSI command passthrough. As this was enabled by default
there's a fallback mechanism in place in cases when the backend doesn't
support SCSI for any reason.
This is not the case when disk type=lun is used with 'scsi-block' via
'virtio-scsi'.
We did not restrict configurations when the user picks 'qcow2' or any
other format as format of the disk, in which case the emulation is
disabled as such configuration doesn't make sense.
This patch unifies the approach so that 'raw' is required both when used
via 'virtio-blk' and 'virtio-scsi' so that the user is presented with
the expected configuration. Note that use of <disk type='lun'> is
already very restrictive as it requires a block device or iSCSI storage.
Additionally the scsi emulation is now deprecated by qemu with
virtio-blk as it conflicts with virtio-1 and the alternative is to use
'virtio-scsi' which performs better and is along for a very long time.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
SD cards need to be instantiated via -drive if=sd. This means that all
cases where we use the blockdev path need to be special-cased for SD
cards.
Note that at this point QEMU_CAPS_BLOCKDEV is still cleared if the VM
config has a SD card.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We still have to use -drive to instantiate sd disks. Combining that with
the new logic for blockjobs would be very complicated and not worth it
given that 'sd' cards work only on few rarely used machine types of
non-common architectures and libvirt didn't implement support for 'sd'
bus controllers. This will allow us to use -blockdev for other kinds on
such machines while sacrificing block jobs.
Note: this is currently no-op as we mask-out the QEMU_CAPS_BLOCKDEV
capability if any of the disks has bus='sd'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In case of 'sd' cards we'll use pre-blockdev code also if qemu supports
blockdev. In that specific case we'll need to mask out blockdev support
for 'sd' disks. Plumb in a boolean to allow it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
We have a framework to register cleanup callbacks that are run
when a domain is shut down. The idea is to run callbacks in
reverse order than they were registered. However, looking at the
code this is not the case. Fortunately, this framework is used to
register a single callback and a single callback only -
qemuMigrationDstPrepareCleanup() - therefore there was no problem
just yet.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Instead of the following pattern:
type ret;
...
ret = func();
return ret;
we can use:
return func()
directly.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
If a backup job fails midway it's hard to figure out what happened as
it's running asynchronous. Use the VIR_DOMAIN_JOB_ERRMSG job statistics
field to pass through the error from the first failed backup-blockjob
so that both the consumer of the virDomainGetJobStats and the
corresponding event can see the error.
event 'job-completed' for domain backup-test:
operation: 9
time_elapsed: 46
disk_total: 104857600
disk_processed: 10158080
disk_remaining: 94699520
success: 0
errmsg: No space left on device
virsh domjobinfo backup-test --completed --anystats
Job type: Failed
Operation: Backup
Time elapsed: 46 ms
File processed: 9.688 MiB
File remaining: 90.312 MiB
File total: 100.000 MiB
Error message: No space left on device
https://bugzilla.redhat.com/show_bug.cgi?id=1812827
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
The field can be used by jobs to add an optional error message to a
completed (failed) job.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
In order to add a string to qemuDomainJobInfo we must ensure that it's
freed and copied properly. Add helpers to copy and free the structure
and adjust the code to use them properly for the new semantics.
Additionally also allocation is changed to g_new0 as it includes the
type and thus it's very easy to grep for all the allocations of a given
type.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Catch the individual usage not removed in previous commits.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Previously, we used virCapabilitiesDomainDataLookup() to fill
machine type in post parse callback if none was provided in the
domain XML. If machine type couldn't be filled in an error was
reported. After 4a4132b462 we've changed it to
virQEMUCapsGetPreferredMachine() which returns NULL, but we no
longer report an error and proceed with the post parse callbacks
processing. This may lead to a crash because the code later on
assumes def->os.machine is not NULL.
Fixes: 4a4132b462
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Mores <pmores@redhat.com>
The cfg->root is going away, therefore get the info right from
the driver structure.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The virDomainGenerateMachineName() function doesn't belong in
src/conf/ really, because it has nothing to do with domain XML
parsing. It landed there because of lack of better place in the
past. But now that we have src/hypervisor/ the function should
live there. At the same time, the function name is changed to
match new location.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Introduced in v1.2.17-rc1~121, the assumption was that the
driver->privileged is immutable at the time but it might change
in the future. Well, it did not ever since. It is still immutable
variable. Drop the needless accessor then.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Now that all its helper functions are in qemu_validate.c, we can
move the function itself. The helpers can become static again since
they're all in the same file.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
This will allow to move qemuDomainDeviceDefValidate() itself in
the next patch in a cleaner way.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Move the function and all its static helper functions.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This function will remain public due to its usage in qemublocktest.c
even after moving qemuDomainDeviceDefValidate(). The position of its
header in qemu_validate.h is no accident.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
This function alone requires other 3 static functions to be
moved as well, thus let's move it in its own patch.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
qemuDomainChrDefValidate() has a lot of static helpers functions
that needed to be moved as well.
Other functions from qemuDomainDeviceDefValidate() that were
also moved:
- qemuValidateDomainSmartcardDef
- qemuValidateDomainRNGDef
- qemuValidateDomainRedirdevDef
- qemuValidateDomainWatchdogDef
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
The next big task is to move qemuDomainDeviceDefValidate() to
qemu_validation.c, which is a function that calls a lot of
other static helper functions. This patch starts it by moving
qemuDomainDeviceDefValidateAddress().
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Move the static functions qemuDomainValidateDef() uses, as well as
qemuDomainValidateDef() itself to qemu_validate.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This patch introduces a new file to host domain validations from
the QEMU driver. And to get things started, let's move
qemuDomainDefValidateFeatures() to this new file.
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
If the storage source has the query part set, format it in the output.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Commit 5540acb9a2 added a minimum size verification for the target
size of ppc64 NVDIMMs but forgot to remove a MAX() size check that
was being used in earlier reviews of that commit. The size
verification makes this check unneeded since we're making sure
that guestArea will always be at least equal to ppc64AlignSize.
Fixes: 5540acb9a2
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The PMU feature is enabled by default in ppc64 guests and can't
be disabled via Libvirt or QEMU [1]. The current PMU feature
implementation does not allow PMU to enabled or disabled in the
ppc64 guest. Declaring the PMU feature will make the 'pmu'
property to be passed on to QEMU, but this property isn't
available for ppc64:
qemu-kvm: can't apply global host-powerpc64-cpu.pmu=on: Property '.pmu' not found
A similar error is thrown when trying to disable the PMU.
This patch standardizes the PMU handling for ppc64 guests by:
- throwing an error if the user attempts to set the feature to
'off', given that this feature can't be turned off at all;
- allowing the feature to be declared as 'on' in the domain XML.
This is done by skipping ppc64 guests when creating the command
line for this feature.
[1] https://www.redhat.com/archives/libvir-list/2020-March/msg00874.html
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Hyperv features are supported by both x86 and aarch64. The <hyperv/>
declaration in the XML by itself is benign to other architectures,
but any of its 14 current features will break QEMU with an error
like this (from ppc64):
qemu-kvm: Expected key=value format, found hv_relaxed
This is a more extreme case than the one for apic eoi because we
would need an extra 'switch' statement, with all current Hyperv
features in the body of qemuDomainDefValidateFeatures(), to
check if the user attempted to activate any of them. It's easier to
simply fail to launch with any 'hyperv' declaration in the XML for
every arch which is not x86 and aarch64.
A fair disclaimer about Windows and PowerPC: the last Windows version
that ran in the architecture is the hall of famer Windows NT 4.0,
launched in 1996 and with end of extended support for the Server
version in 2004 [1]. I am acknowledging that there might be Windows
NT 4.0 users running in PowerPC, but not enough people running it
under KVM/QEMU to justify Libvirt allowing 'hyperv' to exist in the
domain XML of ppc64 domains.
[1] https://en.wikipedia.org/wiki/Windows_NT_4.0
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The 'pvspinlock' feature is x86 only. The "<pvspinlock/>" declaration
will always have a value 'on' or 'off', and both will break QEMU when
launching non-x86 guests. This is the error message for
"<pvspinlock state='on'/>" when running a ppc64 guest:
qemu-kvm: Expected key=value format, found +kvm_pv_unhalt
A similar error message is thrown for "<pvspinlock state='off'/>".
This patch prevents non-x86 guests from launching with any
pvspinlock setting with a more informative error message:
error: unsupported configuration: The 'pvspinlock' feature is not
supported for architecture 'ppc64' or machine type 'pseries'
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
The "<apic/>" feature, although it's available only for x86 guests,
can be declared in the domain XML of other archs without errors.
But setting its 'eoi' attribute will break QEMU. For "<apic eoi='on'/>",
in a ppc64 guest:
qemu-kvm: Expected key=value format, found +kvm_pv_eoi
A similar error happens with eoi='off'.
One can argue that it's better to simply forbid launching non-x86
guests with "<apic/>" declared in the XML - it is a feature that
the architecture doesn't support and this would make it clearer
about it. This is sensible, but there are non-x86 guests that are
running with "<apic/>" declared in the domain (and A LOT of guests
running with "<acpi/>" for that matter, probably reminiscent of x86
templates that were reused for other archs) that will stop working if we
go this route.
A more subtle approach is to detect if the 'eoi' element is being set
for non-x86 guests and warn the user about it with a better error
message than the one QEMU provides. This is the new error message
when any value is set for the 'eoi' element in a ppc64 XML:
error: unsupported configuration: The 'eoi' attribute of the 'apic'
feature is not supported for architecture 'ppc64' or machine type
'pseries'.
https://bugzilla.redhat.com/show_bug.cgi?id=1236440
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Helper processes may have their state migrated with QEMU data stream
thanks to the QEMU "dbus-vmstate".
libvirt maintains the list of helpers to be migrated. The
"dbus-vmstate" is added when required, and given the list of helper
Ids that must be migrated, on save & load sides.
See also:
https://git.qemu.org/?p=qemu.git;a=blob;f=docs/interop/dbus-vmstate.rst
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
