Generated using the following spatch:
@@
expression path;
@@
- virFileMakePath(path)
+ g_mkdir_with_parents(path, 0777)
However, 14 occurrences were not replaced, e.g. in
virHostdevManagerNew(). I don't really understand why.
Fixed by hand afterwards.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Add status XML infrastructure for storing a list of block dirty bitmaps
which are temporarily used when migrating a VM with
VIR_MIGRATE_NON_SHARED_DISK for cleanup after a libvirtd restart during
migration.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
These messages are only valid while the domain is running.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
To make it easier to split out the parsing/formatting of the <teaming>
element into separate functions (so we can more easily add the
<teaming> element to <hostdev>, change its virDomainNetDef so that it
points to a virDomainNetTeamingInfo rather than containing one.
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The conversion removes the use of virStringListAdd/virStringListRemove
which try to add dynamic properties to a string list which is really
inefficient.
Storing the dbus VMState ids in a GSList is pretty straightforward and
the slightly increased complexity of the code will be paid back by
removing the string list helpers later.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The "max" model can be treated the same way as "host" model in general.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
For hardware virtualization this is functionally identical to the
existing host-passthrough mode so the same caveats apply.
For emulated guest this exposes the maximum featureset supported by
the emulator. Note that despite being emulated this is not guaranteed
to be migration safe, especially if different emulator software versions
are used on each host.
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Implements QEMU support for vhost-user-blk together with live
hotplug/unplug.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Phase out use of VIR_DISPOSE_N from the qemu driver. Use memset in the
appropriate cases.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When virRandomBytes fails we don't get any random bytes and even if we
did they don't have to be treated as secret as they weren't used in any
way.
Add a temporary variable with automatic freeing for the secret buffer
and assign it only on success.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Up until now we had a runtime code and XML related code in the same
source file inside util directory.
This patch takes the runtime part and extracts it into the new
storage_file directory.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The virtio-pmem is a virtio variant of NVDIMM and just like
NVDIMM virtio-pmem also allows accessing host pages bypassing
guest page cache. The difference is that if a regular file is
used to back guest's NVDIMM (model='nvdimm') the persistence of
guest writes might not be guaranteed while with virtio-pmem it
is.
To express this new model at domain XML level, I've chosen the
following:
<memory model='virtio-pmem' access='shared'>
<source>
<path>/tmp/virtio_pmem</path>
</source>
<target>
<size unit='KiB'>524288</size>
</target>
<address type='pci' domain='0x0000' bus='0x00' slot='0x05' function='0x0'/>
</memory>
Another difference between NVDIMM and virtio-pmem is that while
the former supports NUMA node locality the latter doesn't. And
also, the latter goes onto PCI bus and not into a DIMM module.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
qemu's qcow2 driver allows control of the metadata cache of qcow2 driver
by the 'cache-size' property. Wire it up to the recently introduced
elements.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Implement support for the 'nfs' native protocol driver in the qemu
driver.
QEMU accepts numeric UID/GID for 'nfs' protocol file driver thus libvirt
needs to perform the lookup prior to passing it to qemu.
Signed-off-by: Ryan Gahagan <rgahagan@cs.utexas.edu>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
The next objective is to move virDomainDeviceDefValidate() to
domain_validate.c. First let's move all the static helpers.
The net device validation functions are used across multiple
drivers, so let's move them separately first.
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Commit 926563dc3a which refactored the function call deleting the
snapshot's on disk state introduced a logic bug, which skips over the
deletion of libvirt metadata after the disk state deletion is done.
To fix it we must not return early.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/109
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
We already calculated the guest area, which is what is subject
to minimum size requirements, a few lines earlier.
Signed-off-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Nodename may be asociated to a disk backup job, add support to looking
up in that chain too. This is specifically useful for the
BLOCK_WRITE_THRESHOLD event which can be registered for any nodename.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Nodename may be asociated to a disk backup job, add support to looking
up in that chain too. This is specifically useful for the
BLOCK_WRITE_THRESHOLD event which can be registered for any nodename.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'virStorageFileChainLookup' reports an error when the lookup of the
backing chain entry is unsuccessful. Since we possibly use it multiple
times when looking up backing for 'disk->mirror' the function can report
error which won't be actually reported.
Replace the call to virStorageFileChainLookup by lookup in the chain by
index.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use dummy variable to fill 'src' so that access to it doesn't need to be
conditionalized and use temporary variable for 'disk' rather than
dereferencing the array multiple times.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In v6.0.0-rc1~439 (and friends) we tried to cache NUMA
capabilities because we assumed they are immutable. And to some
extent they are (NUMA hotplug is not a thing, is it). However,
our capabilities contain also some runtime info that can change,
e.g. hugepages pool allocation sizes or total amount of memory
per node (host side memory hotplug might change the value).
Because of the caching we might not be reporting the correct
runtime info in 'virsh capabilities'.
The NUMA caps are used in three places:
1) 'virsh capabilities'
2) domain startup, when parsing numad reply
3) parsing domain private data XML
In cases 2) and 3) we need NUMA caps to construct list of
physical CPUs that belong to NUMA nodes from numad reply. And
while this may seem static, it's not really because of possible
CPU hotplug on physical host.
There are two possible approaches:
1) build a validation mechanism that would invalidate the
cached NUMA caps, or
2) drop the caching and construct NUMA caps from scratch on
each use.
In this commit, the latter approach is implemented, because it's
easier.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1819058
Fixes: 1a1d848694
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Since the function is now only used in qemu_domain.c, move it from
domain_conf.c and rename it.
This reverts the work done in commit ace5931553
(conf, qemu: move qemuDomainNVDimmAlignSizePseries to domain_conf.c).
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
qemuDomainAlignMemorySizes() has an operation order problem. We are
calculating 'initialmem' without aligning the memory modules first.
Since we're aligning the dimms afterwards this can create inconsistencies
in the end result. x86 has alignment of 1-2MiB and it's not severely
impacted by it, but pSeries works with 256MiB alignment and the difference
is noticeable.
This is the case of the existing 'memory-hotplug-ppc64-nonuma' test.
The test consists of a 2GiB (aligned value) guest with 2 ~520MiB dimms,
both unaligned. 'initialmem' is calculated by taking total_mem and
subtracting the dimms size (via virDomainDefGetMemoryInitial()), which
wil give us 2GiB - 520MiB - 520MiB, ending up with a little more than
an 1GiB of 'initialmem'. Note that this value is now unaligned, and
will be aligned up via VIR_ROUND_UP(), and we'll end up with 'initialmem'
of 1GiB + 256MiB. Given that the dimms are aligned later on, the end
result for QEMU is that the guest will have a 'mem' size of 1310720k,
plus the two 512 MiB dimms, exceeding in 256MiB the desired 2GiB
memory and currentMemory specified in the XML.
Existing guests can't be fixed without breaking ABI, but we have
code already in place to align pSeries NVDIMM modules for new guests.
Let's extend it to align all pSeries mem modules.
A new test, 'memory-hotplug-ppc64-nonuma-abi-update', a copy of the
existing 'memory-hotplug-ppc64-nonuma', was added to demonstrate the
result for new pSeries guests. For the same unaligned XML mentioned
above, after applying this patch:
- starting QEMU mem size without PARSE_ABI_UPDATE:
-m size=1310720k,slots=16,maxmem=4194304k \ (no changes)
- starting QEMU mem size with PARSE_ABI_UPDATE:
-m size=1048576k,slots=16,maxmem=4194304k \ (size fixed)
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
A previous patch removed the pSeries NVDIMM align that wasn't
being done properly. This patch reintroduces it in the right
fashion, making it reliant on VIR_DOMAIN_DEF_PARSE_ABI_UPDATE.
This makes it complying with the intended design defined by
commit c7d7ba85a6.
Since the PARSE_ABI_UPDATE is more restrictive than checking for
!migrate && !snapshot, like is being currently done with
qemuDomainAlignMemorySizes(), this means that we'll align the
pSeries NVDIMMs in two places - in post parse time for new
guests, and in qemuDomainAlignMemorySizes() for all guests
that aren't migrating or in a snapshot.
Another difference is that the logic is now in the QEMU driver
instead of domain_conf.c. This was necessary because all
considerations made about the PARSE_ABI_UPDATE flag were done
under QEMU. Given that no other driver supports ppc64 there is no
impact in this change.
A new test was added to exercise what we're doing. It consists
of a a copy of the existing 'memory-hotplug-nvdimm-ppc64' xml2xml
test, called with the PARSE_ABI_UPDATE flag. As intended, we're
not changing QEMU command line or any XML without the flag,
while the pseries NVDIMM memory is being aligned when the
flag is used.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
After previous cleanup the @qemuCaps argument in
qemuDomainDefValidateMemoryHotplug() is unused and thus doesn't
need to be passed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
There is this function qemuDomainDefValidateMemoryHotplug() which
is called explicitly from hotplug path and the qemu's domain def
validator. This is not really necessary because we can move the
part that validates feature against qemuCaps into device
validator which is called implicitly (from qemu driver's POV).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Han Han <hhan@redhat.com>
The virDomainMemoryModel structure has a @type member which is
really type of virDomainMemoryModel but we store it as int
because the virDomainMemoryModelTypeFromString() call stores its
retval right into it. Then, to have compiler do compile time
check for us, every switch() typecasts the @type. This is
needlessly verbose because the parses already has @val - a
variable to store temporary values. Switch @type in the struct to
virDomainMemoryModel and drop all typecasts.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Tested-by: Han Han <hhan@redhat.com>
In some cases such as when creating an internal inactive snapshot we
know that the domain definition in the snapshot is equivalent to the
current definition. Additionally we set up the current definition for
the snapshotting but not the one contained in the snapshot. Thus in some
cases the caller knows better which def to use.
Make qemuDomainSnapshotForEachQcow2 take the definition by the caller
and copy the logic for selecting the definition to callers where we
don't know for sure that the above claim applies.
This fixes internal inactive snapshots when <disk type='volume'> is used
as we translate the pool/vol combo only in the current def.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/97
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Don't try to manipulate snapshots on network or unresolved volume backed
storage.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'continue' the loop if the device is not a disk. Saving the level makes
one of the error messages fit on a single line.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The NCR53C90 ESP SCSI controller is only usable when built-in to the
machine type. This method will facilitate checking that restriction
across many places.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
The sparc machines have little in common with sparc64 machines.
No sparc machine type includes a PCI bus, so we should not be adding one
to the XML. This further means that we should not be adding a memory
balloon device, nor USB controller as these are both PCI based.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Use g_autoptr() and remove the 'cleanup' label.
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Use VIR_AUTOCLOSE with 'fd' and delete the 'cleanup' label.
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Use g_autoptr() to deprecate the 'cleanup' label.
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
Remove obsolete 'cleanup' labels after the changes from the
previous patch.
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This is basically just saves checkpoints metadata on disk after name is changed
in memory as path to domain checkpoints directory depends on name. After that
old checkpoint directory is deleted with checkpoint metadata files.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
This is basically just saves snapshots metadata on disk after name is changed
in memory as path to domain snapshot directory depends on name. After that
old snapshot directory is deleted with snapshot metadata files.
Signed-off-by: Nikolay Shirokovskiy <nshirokovskiy@virtuozzo.com>
Reviewed-by: Daniel Henrique Barboza <danielhb413@gmail.com>
