Now that we have STRCASESKIP() there's no need to open code it.
Convert virVMXConfigScanResultsCollector() so that it uses this
new macro.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
There is so far one case where STRCASEPREFIX(a, b) && a +
strlen(b) combo is used (in virVMXConfigScanResultsCollector()),
but there will be more. Do what we do usually: introduce a macro.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
When generating memory for main guest memory memory-backend-*
might be used. This means, we may need to generate thread-context
objects too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
When generating memory for memory devices memory-backend-* might
be used. This means, we may need to generate thread-context
objects too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
When generating memory for guest NUMA memory-backend-* might be
used. This means, we may need to generate thread-context objects
too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
While technically thread-context objects can be reused, we only
use them (well, will use them) to pin memory allocation threads.
Therefore, once we connect to QEMU monitor, all memory (with
prealloc=yes) was allocated and thus these objects are no longer
needed and can be removed. For on demand allocation the TC object
is left behind.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The aim of thread-context object is to set affinity on threads
that allocate memory for a memory-backend-* object. For instance:
-object '{"qom-type":"thread-context","id":"tc-ram-node0","node-affinity":[3]}' \
-object '{"qom-type":"memory-backend-memfd","id":"ram-node0","hugetlb":true,\
"hugetlbsize":2097152,"share":true,"prealloc":true,"prealloc-threads":8,\
"size":15032385536,"host-nodes":[3],"policy":"preferred",\
"prealloc-context":"tc-ram-node0"}' \
allocates 14GiB worth of memory, backed by 2MiB hugepages from
host NUMA node 3, using 8 threads. If it weren't for
thread-context these threads wouldn't have any affinity and thus
theoretically could be scheduled to run on CPUs of different NUMA
node (which is what I saw occasionally).
Therefore, whenever we are pinning memory (IOW setting host-nodes
attribute), we can generate thread-context object with the same
affinity.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
In its commit v7.1.0-1429-g7208429223 QEMU gained new object
thread-context, which allows running specialized tasks with
affinity set to a given subset of host CPUs/NUMA nodes. Even
though only memory allocation task accepts this new object, it's
exactly what we aim to implement in libvirt. Therefore, introduce
a new capability to track whether QEMU is capable of this object.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
On aarch64 the 'id' file is not present for CPU cache information in
sysfs. This causes the local stateful hypervisor drivers to fail to
initialize capabilities:
virStateInitialize:657 : Initialisation of cloud-hypervisor state driver failed: no error
The 'no error' is because the 'virFileReadValueNNN' methods return
ret==-2, with no error raised, when the requeted file does not exist.
None of the callers were checking for this scenario when populating
capabilities. The most graceful way to handle this is to skip the
cache bank in question. This fixes failure to launch libvirt drivers
on certain aarch64 hardware.
Fixes: https://gitlab.com/libvirt/libvirt/-/issues/389
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This lets us simplify the cleanup paths when populating the host cache
bank information in capabilities XML.
Tested-by: Alex Bennée <alex.bennee@linaro.org>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Inside virt-qemu-run, just like in virsh for example, there is no
identity set in the current thread, so we should not try to set it,
otherwise things like connecting to other drivers might fail and on
top of that there is no error set so the user can't even see what's
wrong.
Fixes: https://bugzilla.redhat.com/show_bug.cgi?id=2000075
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
It is already nonfallible, so just change the return type to void.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In one of recent commits an error message was introduced. In this
message a variable of type ssize_t is being printed out, but the
corresponding format directive is %ld instead of %zd which breaks
on 32bits systems. Switch to proper format.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
According to the result parsing from xml, add the argument of
SGX EPC memory backend into QEMU command line.
$ qemu-system-x86_64 \
...... \
-object '{"qom-type":"memory-backend-epc","id":"memepc0","prealloc":true,"size":67108864,"host-nodes":[0,1],"policy":"bind"}' \
-object '{"qom-type":"memory-backend-epc","id":"memepc1","prealloc":true,"size":16777216,"host-nodes":[2,3],"policy":"bind"}' \
-machine sgx-epc.0.memdev=memepc0,sgx-epc.0.node=0,sgx-epc.1.memdev=memepc1,sgx-epc.1.node=1
Signed-off-by: Lin Yang <lin.a.yang@intel.com>
Signed-off-by: Haibin Huang <haibin.huang@intel.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
As advertised in previous commits, QEMU needs to access
/dev/sgx_vepc and /dev/sgx_provision files when SGX memory
backend is configured. And if it weren't for QEMU's namespaces,
we wouldn't dare to relabel them, because they are system wide
files. But if namespaces are used, then we can set label on
domain's private copies, just like we do for /dev/sev.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Haibin Huang <haibin.huang@intel.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This is similar to the previous commit. SGX memory backend needs
to access /dev/sgx_vepc and /dev/sgx_provision. Create these
nodes in domain's private /dev when required by domain's config.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Haibin Huang <haibin.huang@intel.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
SGX memory backend needs to access /dev/sgx_vepc (which allows
userspace to allocate "raw" EPC without an associated enclave)
and /dev/sgx_provision (which allows creating provisioning
enclaves). Allow these two devices in CGroups if a domain is
configured so.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Signed-off-by: Haibin Huang <haibin.huang@intel.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Extend hypervisor capabilities to include sgx feature. When available,
the hypervisor supports launching an VM with SGX on Intel platfrom.
The SGX feature tag privides additional details like section size and
sgx1 or sgx2.
Signed-off-by: Haibin Huang <haibin.huang@intel.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Generate the QMP command for query-sgx-capabilities and the command
return SGX capabilities from QMP.
{"execute":"query-sgx-capabilities"}
the right reply:
{"return":
{
"sgx": true,
"section-size": 197132288,
"flc": true
}
}
the error reply:
{"error":
{"class": "GenericError", "desc": "SGX is not enabled in KVM"}
}
Signed-off-by: Haibin Huang <haibin.huang@intel.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
JSON args for -netdev were added as precursor for adding the 'dgram'
network backend type. Enable the detection and update test cases using
DO_TEST_CAPS_LATEST.
Enabling the capability also ensures that the -netdev argument is
validated against the QAPI schema of 'netdev_add' which was already
implemented but not enabled.
The parser supporting JSON was added by qemu commit f3eedcddba3 and
enabled when adding stream/dgram netdevs in commit 5166fe0ae46.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Certain udev entries might be of a size that makes libudev emit EINVAL
which right now leads to udevEventHandleThread exiting. Due to no more
handling events other elements of libvirt will start pushing for events
to be consumed which never happens causing a busy loop burning a cpu
without any gain.
After evaluation of the example case discussed in in #245 and a test
run ignoring EINVAL it was considered safe to add EINVAL to the ignored
errnos to not exit udevEventHandleThread giving it more resilience.
The root cause is in systemd and by now was discussed and fixed via
https://github.com/systemd/systemd/issues/24987, but hardening libvirt
to be able to better deal with EINVAL returned still is the right thing
to avoid the reported busy loops on systemd with older systemd versions.
Fixes: https://gitlab.com/libvirt/libvirt/-/issues/245
Signed-off-by: Christian Ehrhardt <christian.ehrhardt@canonical.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
clang 14.0.5 complains:
../src/bhyve/bhyve_device.c:42:29: error: mixing declarations and code
is incompatible with standards before C99
[-Werror,-Wdeclaration-after-statement]
virDomainPCIAddressSet *addrs = opaque;
^
1 error generated.
And a few similar errors in some other places, mainly bhyve related.
Apply a trivial fix to resolve that.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
All callers pass the equivalent of looking up whether qemu supports
QEMU_CAPS_QMP_QUERY_NAMED_BLOCK_NODES_FLAT. Use
'mon->queryNamedBlockNodesFlat' directly and refactor all callers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'query-named-block-nodes' in non-flat mode returns redundantly nested
data under the 'backing-image' field. Fortunately we don't need it when
updating the capacity stats.
This function was unfortunately not fixed originally when the support
for flat mode was added. Use the flat cached in the monitor object to
force flat mode if available.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rather than having callers always pass this flag store it in the
qemuMonitor object. Following patches will convert the code to use this
internal flag.
In the future this will also simplify removal when all supported qemu
versions will support the new mode.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We don't need automatic freeing for 'blockNamedNodeData' and we can
directly return it rather than checking it for NULL-ness first.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
qemu-6.2 introduced support for the hv-avic enlightenment which allows
to use Hyper-V SynIC with hardware APICv/AVIC enabled.
Implement the libvirt support for it.
Closes: https://gitlab.com/libvirt/libvirt/-/issues/402
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Based on qemu commit e1f9a8e8c90ae54387922e33e5ac4fd759747d01 introduce
the hv-avic feature in leaf 0x40000004, EAX 0x00000200 (1 << 9).
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'VIR_CPU_x86_HV_STIMER_DIRECT' is reported under leaf 0x40000003,
but the data is in the EDX register. Create a new group for such
features and move them after the 0x40000003 EAX group.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In recent commits migration of TPM on shared storage was
introduced. However, I've only complied it with gcc and thus did
not notice that clang build fails due to missing break; at the
end of some (empty) cases in switch() statements.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Never remove the TPM state on outgoing migration if the storage setup
has shared storage for the TPM state files. Also, do not do the security
cleanup on outgoing migration if shared storage is detected.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
When using shared storage there is no need to apply security labels on the
storage since the files have to have been labeled already on the source
side and we must assume that the source and destination side have been
setup to use the same uid and gid for running swtpm as well as share the
same security labels. Whether the security labels can be used at all
depends on the shared storage and whether and how it supports them.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Pass the --migration option to swtpm if swptm supports it (starting
with v0.8) and if the TPM's state is written on shared storage. If this
is the case apply the 'release-lock-outgoing' parameter with this
option and apply the 'incoming' parameter for incoming migration so that
swtpm releases the file lock on the source side when the state is migrated
and locks the file on the destination side when the state is received.
If a started swtpm instance is running with the necessary options of
migrating with share storage then remember this with a flag in the
virDomainTPMPrivateDef.
Report an error if swtpm does not support the --migration option and an
incoming migration across shared storage is requested.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add support for storing private TPM-related data. The first private data
will be related to the capability of the started swtpm indicating whether
it is capable of migration with a shared storage setup since that requires
support for certain command line flags that were only becoming available
in v0.8.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Do not create storage if the TPM state files are on shared storage and
there's an incoming migration since in this case the storage directory
must already exist. Also do not run swtpm_setup in this case.
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
New qemuTPMHasSharedStorage() function is introduced which
returns whether the swtpm state directory is on a shared
filesystem (e.g. NFS).
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Add support for parsing swtpm 'cmdarg-migration' capability (since v0.8).
Signed-off-by: Stefan Berger <stefanb@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This makes the naming more consistent beween the two scripts
synching the feature list and the model list.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
This script is intended to help in synchronizing i386 QEMU cpu
feature definitions with libvirt.
QEMU's attribute list for the "max-x86_64-cpu" contains non-cpu-feature
items and needs to be filtered before being useful.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
A later patch will add alias names to the feature map. They will be used
in virQEMUCapsCPUFeatureTranslate and for synchronizing the list with QEMU.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.7.0-rc0~32^2~5 the .write-cache
attribute of virtio-blk dvice is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
The change in some .args is justified, because the qemuxml2argvdatatest
runs these test caseses with very minimalistic set of capabilities,
that's nowhere near real life scenario.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.9.0-rc0~48^2~25 the .share-rw
attribute of virtio-blk device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
The change in controller-order.args is justified, because the
qemuxml2argvdatatest runs the test case with very minimalistic
set of capabilities, that's nowhere near real life scenario.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.7.0-rc0~83^2 the .num-queues
attribute of virtio-blk device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v0.13.0-rc0~1072 the
.logical_block_size attribute of virtio-blk device is always
available for all QEMU versions we support (4.2.0, currently).
Therefore, we can assume the capability is always set and thus
doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v4.2.0-rc0~23^2~4 the .failover
attribute of virtio-net device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.9.0-rc0~162^2~10 the .host_mtu
attribute of virtio-net device is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.10.0-rc0~95^2~20 the
.tx_queue_size attribute of virtio-net device is always available
for all QEMU versions we support (4.2.0, currently). Therefore,
we can assume the capability is always set and thus doesn't need
to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.8.0-rc0~116^2~26 the
.rx_queue_size attribute of virtio-net device is always available
for all QEMU versions we support (4.2.0, currently). Therefore,
we can assume the capability is always set and thus doesn't need
to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v3.1.0-rc3~8^2 the
query-display-options command is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v4.0.0-rc0~202^2~3 the
query-current-machine command is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.12.0-rc0~48^2~25 the
qom-list-properties command is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.6.0-rc0~74^2~6 the
DUMP_COMPLETED event is always available for all QEMU versions we
support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Historically, before sending any guest agent command we would
send 'guest-sync' command to make guest agent reset its internal
state and flush any partially read command (json). This was
because there was no event emitted when the agent
(dis-)connected.
But now that we have the event we can execute the sync command
just once - the first time after we've connected. Should agent
disconnect in the middle of reading a command, and then connect
back again we would get the event and disconnect and connect back
again, resulting in the sync command being executed again.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.1.0-rc0~18^2~2 the
VSERPORT_CHANGE event is always available for all QEMU versions
we support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v3.0.0-rc0~124^2~1 the
set-numa-node command is always available for all QEMU versions
we support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The qemuDomainQueryWakeupSuspendSupport() does not change state
of the domain as it just runs 'query-current-machine' QMP
command. Therefore, there's no need for it to acquire MODIFY job,
QUERY job is perfectly okay.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The was an attempt to document the retvals for
qemuDomainQueryWakeupSuspendSupport(). However, it's misleading
because in reality, the function can return nothing but 0 or -1,
but the comment implies retval of 1 too.
Since the set of possible return values complies with our
unwritten rule (0 for success, -1 for error), there's no real
value in having the comment and as such can be dropped.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The high-bandwidth memory (HBM) in cache mode might be greater than
UINT_MAX of cache per NUMA node, so change to unsigned long long.
Signed-off-by: Lin Yang <lin.a.yang@intel.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Historically, we had no idea whether the qemu-ga running inside
the guest was running or not. Or whether it crashed in the middle
of reading of a command. That's why we issued guest-sync prior
any intended command, to make the agent flush any partially read
JSON and reset its state machine.
But with VSERPORT_CHANGE event we know when the guest agent
(dis-)connects and thus can issue the sync command just once for
each 'connection'. Whether the agent is synced is tracked in
agent->inSync member, which used to be set to true upon
successful sync. But after rework in v8.0.0-rc1~361 that line is
gone, leaving us with using the historic approach basically.
Fixes: cad84fd51e
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The privatedata.rng file was accidentally left uninstalled, but it's
referenced by other schema files effectively breaking validation of XMLs
in new installations.
Change to libvirt.spec is not needed as we include all installed schemas
via a wildcard.
Fixes: d8ceacdc87
Reported-by: Daniel P. Berrangé <berrange@redhat.com>
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Prior to firewalld version 1.0.0, the default action of ACCEPT in the
"libvirt" zone (subsequently overridden with a lower priority "REJECT"
action) would result in an implicit rule that allowed incoming sessions
through the zone; libvirt relied on this implicit rule to permit
incoming connections to guests that were connected via a libvirt
"routed" network.
Starting in firewalld 1.0.0, the rules generated for this same
zonefile changed such that incoming sessions through the libvirt zone
were no longer allowed, breaking the longstanding convention that they
should be allowed (only for routed networks).
However, beginning with firewalld 0.9.0, a zone can explicitly
allow/block forwarded traffic (by adding a "policy" to the zone that
specifies what happens to packets that are going in one zone and out
another zone).
This patch changes the zone for routed networks from "libvirt" to the
newly-added "libvirt-routed" zone that uses the new policy
functionality to once again allow incoming sessions to guests on
routed networks.
(If firewalld is < 0.9.0, then the policy file won't be read at all,
so firewalld won't log any error, and libvirt will just use the old
setup that takes advantage of the implicit forwarding rules).
Resolves: https://bugzilla.redhat.com/2055706
Signed-off-by: Eric Garver <eric@garver.life>
Reviewed-by: Laine Stump <laine@redhat.com>
This zone will be used for the routed network by default.
Note that this zone definition omits "forward" aka intra-zone
forwarding, because it requires firewalld >= 0.9.0.
Signed-off-by: Eric Garver <eric@garver.life>
Reviewed-by: Laine Stump <laine@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.12.0-rc0~148^2~4 the .align
attribute of memory-backend-file is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.11.0-rc0~95^2~9 the .discard
attribute of memory-backend-file is always available for all QEMU
versions we support (4.2.0, currently). Therefore, we can assume
the capability is always set and thus doesn't need to be checked
for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.1.0-rc0~41^2~26 only for Linux,
and later in v3.1.0-rc0~71^2~10 for all POSIX, the
memory-backend-file is going to be present for all QEMU versions
we support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Now that nothing uses this capability, it can be retired.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
All supported QEMUs have this capability. Stop detecting it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduced in QEMU's commit of v2.1.0-rc0~41^2~104 the
memory-backend-ram is going to be present for all QEMU versions
we support (4.2.0, currently). Therefore, we can assume the
capability is always set and thus doesn't need to be checked for.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
AMX was introduced in QEMU commit 1f16764f7d4515bfd5e4ae0aae814fa280a7d0c8.
Signed-off-by: Lin Yang <lin.a.yang@intel.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The g_slist_free_full() function is perfectly capable of handling
NULL (in which case it's NOP), therefore there's no need to check
passed pointers for NULL. We have them though in couple of
places. Drop them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Glib can internally convert only unix timestamps up to
9999-12-31T23:59:59 (253402300799). Validate that the user doesn't use
more than that as otherwise we cause an assertion failure:
(process:1183396): GLib-CRITICAL **: 14:25:00.906: g_date_time_format: assertion 'datetime != NULL' failed
Additionally adjust the schema to allow bigger values as we use
'unsigned long long' to parse the value.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2128993
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Libvirt internally (e.g. in the status XML) stores additional data for
various objects described by the XML. The data is usually stored in
<privateData> or similar sub-elements.
This patch adds possibility for internal schema files to describe the
<privateData> elements by schema while still disallowing them for the
public schema.
This patch adds definitions for private data of <disk> and the
corresponding storage source of a disk.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In a rare case when virHashAddEntry fails we would just leak the
structure we wanted to add to the hash table.
Fixes: e89acdbc3b
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virDomainEventTunableNew is supposed to consume and free @params, but it
failed to always set @params to NULL to make sure the caller doesn't try
to free the same memory again.
Fixes: d95c79fbd0
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Trying to parse <driver> node which does not exist makes no sense.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rename 'diskTarget' to 'diskTargetDev' and then 'target' to
'diskTarget'.
This will make it less confusing when overriding the definition.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use automatic freeing of the validator context to remove
'ret'/'cleanup:'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The only caller passes 'node' argument originating from an XPath lookup
for the 'sysinfo' element, so there's no point in checking it once more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The only caller passes 'node' argument originating from an XPath lookup
for the 'chassis' element, so there's no point in checking it once more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Register automatic cleanup for virSysinfoChassisDef and use it to
refactor the cleanup code paths in virSysinfoChassisParseXML.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Remove the unneeded linebreaks after assignment operator. Only one line
exceeds 80 colums and just by 4 characters.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The only caller passes 'node' argument originating from an XPath lookup
for the 'system' element, so there's no point in checking it once more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Register automatic cleanup for virSysinfoSystemDef and use it to
refactor the cleanup code paths in virSysinfoSystemParseXML.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Remove the unneeded linebreaks after assignment operator. Only one line
exceeds 80 colums and just by 4 characters.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The only caller passes 'node' argument originating from an XPath lookup
for the 'bios' element, so there's no point in checking it once more.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Register automatic cleanup for virSysinfoBIOSDef and use it to refactor
the cleanup code paths in virSysinfoBIOSParseXML.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Remove the now-unused functions for parsing 'unsigned long' values via
XPath.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The callers store only an 'unsigned int' in the field. Convert it to the
proper type including parser/formatter.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We don't need to do the extra XPath lookups and we can use the proper
type right away.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use 'unsigned long long' instead of 'unsigned long' and fix the parser
and formatter.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Adjust the parser and switch statements to go with it.
Note that the XEN/libxl drivers had a 'default:' case for few of the
swtich statements so this patch blindly expands it to what it would be
in those cases.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Adjust the parser and add missing switch cases to make the complier
happy.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Convert the field, adjust the XML parser to use virXMLPropEnum and add
the VIR_DOMAIN_TIMER_TICKPOLICY_LAST enum case to all appropriate
'switch' statements.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Adjust the type and the corresponding parser to use virXMLPropEnum.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Automatically free the 'def' variable and remove the 'cleanup' label.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The struct used 'unsigned long' variables which we try to avoid due to
being different size on different architectures.
Convert the struct and use virXMLPropULongLong instead of virXPathULong
when parsing the XML.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The loop inside virNetDevVlanParse fetches multiple attributes from the
element. Convert it to use the virXMLProp* helpers, which also
simplifies error reporting.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the proper convertor function and refactor error reporting.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Parse the 'prefix' field directly and adjust the the error message
format strings.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function extracts multiple attributes form a single element. Modify
the function to stop using multiple XPath lookups.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The libvirt version is stored in an 'unsigned int' use the proper XPath
query function for the type and remove the temporary variable.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function is now unused and we no longer want to promote use of the
'long' type.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Convert the two uses of virXPathLong to proper
virXMLPropInt/virXMLPropLongLong so that virXPathLong can be removed in
an upcoming patch.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the function for appropriate types and simplify the error logic.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Passing negative number as an alias for the max value is an anti-feature
we unfortunately allowed in virsh, but luckily never encouraged in the
XML.
Refuse numbers with negative sign when parsing unsigned int from
XPaths.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Switch to the proper function for parsing integer variant of a hex
number via XPath and spell out properly that the argument is 'unsigned
int'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In an effort to remove the 'Long' variants of XPath number fetching
functions we need a way to replace the hex number parsing capability.
The new helpers are created from the originals by adding a 'base'
argument and keeping the original function as a wrapper to pass 10.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Similarly to the refactor of virXPath(U)LongLong drop the ability to
convert from the internal double value forcing the use of the 'string()'
conversion.
In case of 32 bit integers there's no problem with overflows, but we can
implement the code identically to what we have in the other helpers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Move the parser into a helper function named 'virCPUDefParseXMLCache'
and use the virXMLProp* helpers instead of multiple XPath lookups.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The code only wants to refuse cases where more than one 'numatune'
element is present which can be achieved by using 'virXPathBoolean'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Upcoming patches will require that the XML XPath query returns a string
for conversion in virXPathInt. Convert all the XPaths used with
virNodeDevCapsDefParseIntOptional which uses virXPathInt internally.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Convert the rest of the XPath expressions used with virXPathUInt
directly to convert via string(). This will become mandatory in upcoming
patches.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Upcoming patches will require that the XML XPath query returns a string
for conversion in virXPathUInt. Convert all the XPaths used with
virNodeDevCapsDefParseUInt which uses virXPathUInt internally.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Passing negative number as an alias for the max value is an anti-feature
we unfortunately allowed in virsh, but luckily never encouraged in the
XML.
Refuse numbers with negative sign when parsing unsigned long long from
XPaths.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The aim of qemuDomainGetPreservedMounts() is to get a list of
filesystems mounted under /dev and optionally generate a path for
each one where they are moved temporarily when building the
namespace. And if given domain is also running it looks into its
mount table rather than at the host one. But if it did look at
the domain's private mount table, it find /dev mounted twice: the
first time by udev, the second time the tmpfs mounted by us.
Now, later in the function there's a "sorting" algorithm that
tries to reduce number of mount points needing preservation, by
identifying nested mount points. And if we keep the second
occurrence of /dev on the list, well, after the "sorting" we are
left with nothing but "/dev" because all other mount points are
nested.
Fixes: 46b03819ae
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The aim of qemuDomainGetPreservedMounts() is to get a list of
filesystems mounted under /dev and optionally generate a path for
each one where they are moved temporarily when building the
namespace. And the function tries to be a bit clever about it.
For instance, if /dev/shm mount point exists, there's no need to
consider /dev/shm/a nor /dev/shm/b as preserving just 'top level'
/dev/shm gives the same result. To achieve this, the function
iterates over the list of filesystem as returned by
virFileGetMountSubtree() and removes the nested ones. However, it
does so in a bit clumsy way: plain VIR_DELETE_ELEMENT() is used
without freeing the string itself. Therefore, if all three
aforementioned example paths appeared on the list, /dev/shm/a and
/dev/shm/b strings would be leaked.
And when I think about it more, there's no real need to shrink
the array down (realloc()). It's going to be free()-d when
returning from the function. Switch to
VIR_DELETE_ELEMENT_INPLACE() then.
Fixes: cdd9205dff
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use virTristateSwitchFromBool to fill in the default if user didn't
request it explicitly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The conversion from double is not precise enough at the extremes so it
must not be used.
Spell out that the callers are required to use a string() conversion in
the XPath expression and remove the code path handling the direct
conversion from numbers.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Extract the internals of virXPathString which evaluate the XPath and
validate that the returned object is a string into a new helper named
'virXPathEvalString'.
The function will be later reused in the number XPath evaluation
functions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When the 'string()' conversion is used the number is parsed inside
libvirt by our internal helpers which work on integers in contrast to
when 'number()' is used and libxml2 uses a 'double' variable internally.
On the upper extremes of the 64 bit variables the double precision
variable doesn't have enough precision to represent each distinct
integer and thus could cause problems.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
'bus', 'slot' and 'function' are unsigned int variables parsed as
unsigned int, but were formated as signed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Fix the function argument to properly spell out 'unsigned int' and use
virXPathUInt instead of virXPathULong and a temporary value.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Rename 'catchRNGError' to 'virXMLValidatorRNGErrorCatch' and
'ignoreRNGError' to 'virXMLValidatorRNGErrorIgnore'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Make the file use consistent header formatting and two line spacing
between functions.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function is now referenced only within util/virxml.c other callers
should not use it directly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Introduce the VIR_VOL_XML_PARSE_VALIDATE parser flag and wire it up into
the validator.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The node device APIs which get XML from the user don't yet support XML
validation flags. Introduce virNodeDeviceCreateXMLFlags and
virNodeDeviceDefineXMLFlags with the appropriate flags and add virsh
support for the new flags.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Allow callers to request XML validation against the schema. All callers
for now pass 'false'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The custom namespace parameters for 'rbd' and 'netfs' pool types were
not included in the interleave statement.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The 'type' element was outside of the 'interleave' definition.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
While for now the 'mirror' element is output only, the idea was to allow
it to be used for input too to restore the mirror job if that becomes
the necessity. Allowing interleaving of the subelements can be done
regardless.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The 'model' and 'target' element can be freely moved around.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Allow interleaving in the 'qemucdevSrcDef' definition which is shared
by all places using character device as backend.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The original patches adding the functionality neglected to add any form
of documentation for the stats fields returned for this group.
The stats are directly converted from qemu's 'query-stats(-schema)' QMP
command without any further interpretation. The 'query-stats-schema' has
the following disclaimer:
Note: runtime-collected statistics and their names fall outside QEMU's usual
deprecation policies. QEMU will try to keep the set of available data
stable, together with their names, but will not guarantee stability
at all costs; the same is true of providers that source statistics
externally, e.g. from Linux. For example, if the same value is being
tracked with different names on different architectures or by different
providers, one of them might be renamed. A statistic might go away if
an algorithm is changed or some code is removed; changing a default
might cause previously useful statistics to always report 0. Such
changes, however, are expected to be rare.
Since libvirt is not doing any form of conversion of the stats we can't
meaningfully document any of the returned fields. At the same time we
can't even meaningfully provide any form of API stability for the field
names.
Modify the documentation for the 'VIR_DOMAIN_STATS_VM' group both in the
API docs and in the virsh man page to reflect that and disclaim any form
of stability guarantees we provide normally.
Fixes: 8c9e3dae14
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
libvirt-guests has After= dependency for all the sockets and that is enough.
With the extra Before= in the service file systemd postpones the start of the
socket activated service (when libvirt-guests is trying to connect to the
socket) until after libvirt-guests is stopped effectively making `systemctl stop
libvirt-guests` deadlock. The reason for that is that all stop jobs are
scheduled before any start job. Removing the redundant Before= specification
fixes this behaviour.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The node_device_driver.h declares nodeDeviceLock() and
nodeDeviceUnlock() functions which used to exist, but after
rework to automatic mutex management they exist no more. Their
last use was removed in v8.1.0-rc1~122.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Currently, udevNodeRegister() is forward declared in
node_device_driver.h even though the function is implemented in
node_device_udev.c which warrants node_device_udev.h header file.
Move the declaration into the correct file.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
Nothing in the header file requires the include of libudev.h, as
the former header file is now empty.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The DMI_DEVPATH macro is used exclusively within
node_device_udev.c. There's no need to expose it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
The SYSFS_DATA_SIZE macro is Unused since its introduction in
v0.7.3~48. Sorry Dave.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jonathon Jongsma <jjongsma@redhat.com>
This reverts commit e49313b54e.
This reverts commit a0f37232b9.
Revert them together to not break build.
This fix of the issue is incorrect and breaks usage of other controllers
in hybrid mode that systemd creates, specifically usage of devices and
cpuacct controllers as they are now assumed to be part of the cgroup v2
topology which is not true.
We need to find different solution to the issue.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
On normal vm startup, we open a file descriptor
for the vsock device in qemuProcessPrepareHost.
However, when doing domxml-to-native, no file descriptors are open.
Only pass the fd if it's not -1, to make domxml-to-native work.
https://bugzilla.redhat.com/show_bug.cgi?id=1777212
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
When libvirtd is restarted during an active outgoing migration (or
snapshot, save, or dump which are internally implemented as migration)
it wants to cancel the migration. But by a mistake in commit
v8.7.0-57-g2d7b22b561 the qemuMigrationSrcCancel function is called with
wait == true, which leads to an instant crash by dereferencing NULL
pointer stored in priv->job.current.
When canceling migration to file (snapshot, save, dump), we don't need
to wait until it is really canceled as no migration capabilities or
parameters need to be restored.
On the other hand we need to wait when canceling outgoing migration and
since we don't have virDomainJobData at this point, we have to
temporarily restore the migration job to make sure we can process
MIGRATION events from QEMU.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In my commit v8.7.0-57-g2d7b22b561 I attempted to make
qemuMigrationSrcCancel synchronous, but failed. When we are canceling
migration after some kind of error which is detected in
in qemuMigrationSrcWaitForCompletion, jobData->status will be set to
VIR_DOMAIN_JOB_STATUS_FAILED regardless on QEMU state. So instead of
relying on the translated jobData->status in qemuMigrationSrcIsCanceled
we need to check the migration status we get from QEMU MIGRATION event.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
systemd in hybrid mode uses v1 hierarchies for controllers and v2 for
process tracking.
The LXC code uses virCgroupAddMachineProcess() to move processes into
appropriate cgroup by manipulating cgroupfs directly. (Note, despite
libvirt also supports talking to systemd directly via
org.freedesktop.machine1 API.)
If this path is taken, libvirt/lxc must convince systemd that processes
really belong to new cgroup, i.e. also the tracking v2 hierarchy must
undergo migration too.
The current check would evaluate v2 backend as unavailable with hybrid
mode (because there are no available controllers). Simplify the
condition and consider the mounted cgroup2 as sufficient to touch v2
hierarchy.
This consequently creates an issue with binding the V2 mount. In hybrid
mode the V2 filesystem may be mounted upon the V1 filesystem. By reversing
the order in which backends are mounted in virCgroupBindMount this problem
is circumvented.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/182
Signed-off-by: Eric van Blokland <mail@ericvanblokland.nl>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
As advertised in the previous commit, QEMU_SCHED_CORE_VCPUS case
is implemented for hotplug case. The implementation is very
similar to the cold boot case, except here we fork off for every
vCPU (because the implementation is done in
qemuProcessSetupVcpu() which is also the function that's called
from hotplug code). But that's okay because our hotplug APIs
allow hotplugging one device at the time.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2074559
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
For QEMU_SCHED_CORE_VCPUS case, the vCPU threads should be placed
all into one scheduling group, but not the emulator or any of its
threads. Therefore, as soon as vCPU TIDs are detected, fork off a
child which then creates a separate scheduling group and adds all
vCPU threads into it.
Please note, this commit only handles the cold boot case. Hotplug
is going to be implemented in the next commit.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
For QEMU_SCHED_CORE_FULL case, all helper processes should be
placed into the same scheduling group as the QEMU process they
serve. It may happen though, that a helper process is started
before QEMU (cold start of a domain). But we have the dummy
process running from which the QEMU process will inherit the
scheduling group, so we can use the dummy process PID as an
argument to virCommandSetRunAmong().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
For QEMU_SCHED_CORE_EMULATOR or QEMU_SCHED_CORE_FULL the QEMU
process (and its vCPU threads) should be placed into its own
scheduling group. Since we have the dummy process running for
exactly this purpose use its PID as an argument to
virCommandSetRunAmong().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
The aim of this helper function is to spawn a child process in
which new scheduling group is created. This dummy process will
then used to distribute scheduling group from (e.g. when starting
helper processes or QEMU itself). The process is not needed for
QEMU_SCHED_CORE_NONE case (obviously) nor for
QEMU_SCHED_CORE_VCPUS case (because in that case a slightly
different child will be forked off).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Ideally, we would just pick the best default and users wouldn't
have to intervene at all. But in some cases it may be handy to
not bother with SCHED_CORE at all or place helper processes into
the same group as QEMU. Introduce a knob in qemu.conf to allow
users control this behaviour.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
There are two modes of core scheduling that are handy wrt
virCommand:
1) create new trusted group when executing a virCommand
2) place freshly executed virCommand into the trusted group of
another process.
Therefore, implement these two new operations as new APIs:
virCommandSetRunAlone() and virCommandSetRunAmong(),
respectively.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Since its 5.14 release the Linux kernel allows userspace to
define trusted groups of processes/threads that can run on
sibling Hyper Threads (HT) at the same time. This is to mitigate
side channel attacks like L1TF or MDS. If there are no tasks to
fully utilize all HTs, then a HT will idle instead of running a
task from another (un-)trusted group.
On low level, this is implemented by cookies (effectively an UL
value): processes in the same trusted group share the same cookie
and cookie is unique to the group. There are four basic
operations:
1) PR_SCHED_CORE_GET -- get cookie of given PID,
2) PR_SCHED_CORE_CREATE -- create a new unique cookie for PID,
3) PR_SCHED_CORE_SHARE_TO -- push cookie of the caller onto
another PID,
4) PR_SCHED_CORE_SHARE_FROM -- pull cookie of another PID into
the caller.
Since a system where the code is built can be different to the
one where the code is ran let's provide declaration of some
values. It's not unusual for distros to ship older linux-headers
than the actual kernel.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
There are couple of scenarios where we need to reflect MAC change
done in the guest:
1) domain restore from a file (here, we don't store updated MAC
in the save file and thus on restore create the macvtap with
the original MAC),
2) reconnecting to a running domain (here, the guest might have
changed the MAC while we were not running),
3) migration (here, guest might change the MAC address but we
fail to respond to it,
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When restoring a domain from a save image, we need to query QEMU
for some runtime information that is not stored in status XML, or
even if it is, it's not parsed (e.g. virtio-mem actual size, or
soon rx-filters for macvtaps).
During migration, this is done in qemuMigrationDstFinishFresh(),
or in case of newly started domain in qemuProcessStart(). Except,
the way that the code is written, when restoring from a save
image (which is effectively a migration), the state is never
refreshed, because qemuProcessStart() sees incoming migration so
it does not refresh the state thinking it'll be done in the
finish phase. But restoring from a save image has no finish
phase. Therefore, refresh the state explicitly after the domain
was restored but before vCPUs are resumed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
We are not updating domain XML to new MAC address, just merely
setting host side of macvtap. But we don't need a MODIFY job for
that, QUERY is just fine.
This allows us to process the event should it occur during
migration.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Parts of the code that responds to the NIC_RX_FILTER_CHANGED
event are going to be re-used. Separate them into a function
(qemuDomainSyncRxFilter()) and move the code into qemu_domain.c
so that it can be re-used from other places of the driver.
There's one slight change though: instead of passing device alias
from the just received event to qemuMonitorQueryRxFilter(), I've
switched to using the alias stored in our domain definition. But
these two are guaranteed to be equal. virDomainDefFindDevice()
made sure about that, if nothing else.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
There's no need to call virNetDevRxFilterFree() explicitly, when
corresponding variables can be declared as
g_autoptr(virNetDevRxFilter).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
With the introduction of `libvirt` sub-directory to the cgroup topology
some of the cgroup configuration was moved into that sub-directory
together with the VM processes.
LXC uses virCgroupNewSelf() in the container process to detect cgroups
in order to report various data from cgroups inside the container.
We need to properly detect the new `libvirt` sub-directory here
otherwise LXC will report incorrect data.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
This patch adds a new worker qemuDomainGetStatsVm which reports the
stats returned by "query-stats" via qemuMonitorQueryStats for the VM
target.
Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
This patch adds the stats queried by qemuMonitorQueryStats for vCPU and
add them according to their QOM device path
Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
This patch adds a hashtable for storing the stats schema and a function
to refresh it by querying "query-stats-schemas" using
qemuMonitorQueryStatsSchema
Signed-off-by: Amneesh Singh <natto@weirdnatto.in>
As qemu becomes more modularized, it is important for libvirt to advertise
availability of the modularized functionality through capabilities. This
change adds channel devices to domain capabilities, allowing clients such
as virt-install to avoid using spicevmc channel devices when not supported
by the target qemu.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The error message doesn't really convey the information that 3d
acceleration works only for the 'virtio' model and similarly the same
error would be reported if qemu doesn't support acceleration, which is
hard to debug.
Split and clarify the errors.
Noticed in https://gitlab.com/libvirt/libvirt/-/issues/388
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Use g_autofree in capabilities.c for some pointers still using manual cleanup,
and remove unnecessary cleanup.
Signed-off-by: Jiang Jiacheng <jiangjiacheng@huawei.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Change strings to use g_autofree.
Signed-off-by: Maxim Kostin <ttxinee@outlook.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Users can play all sorts of games with mount points. For
instance, they can unmount and mount back a hugetlbfs and only
after that attempt to hotplug memory.
This has an unfortunate consequence though. During memory
hotplug, when qemuProcessBuildDestroyMemoryPaths() is called the
path is created with very restrictive mode (0700) because under
the hood g_mkdir_with_parents(path, 0700) is called.
Therefore, create the driver generic portion of the path
separately.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=2134009
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
During its initialization, the QEMU driver iterates over
hugetlbfs mount points, creating the driver specific path in each
of them ($prefix/libvirt/qemu). This path is created with very
wide mode (0777) because per-domain directories are then created
under it.
Separate this code into a function so that it can be re-used.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
domcapabilities reports spice graphics support even against a minimal
qemu installation without spice modules. Checking for 'query-spice'
in the list of qmp commands supported by qemu is not sufficient to
determine spice support. Checking the command line produces acurrate
results.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
As qemu becomes more modularized, it is important for libvirt to advertise
availability of the modularized functionality through capabilities. This
change adds USB redirect devices to domain capabilities, allowing clients
such as virt-install to avoid using redirdev devices when not supported
by the target qemu.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The validation of a '<filesystem type='mount'>' device fails if the
elements inside are not ordered in the order in the schema despite using
<interleave>. This is a bug in libxml2's validator as removing the
'<optional>' property from the definition of the 'type' attribute with
'mount' variable fixes the problem.
I've reported it as another instance of a seemingly related issue:
https://gitlab.gnome.org/GNOME/libxml2/-/issues/131
Meanwhile libvirt can re-arrange the schema by extracting the common
bits into a new definition and referencing them from each of the choice
groups explicitly.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/392
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
When libvirt is restarted, the qemuProcessShutdownReboot command is
executed to restore the VM that is being restarted. In this case, a
coredump may occur when we hotplug a pci device since the PCI address
hasn't be inited yet. Moving the initialization of address to the front
of qemuProcessShutdownOrReboot to ensure that we have the address inited.
Signed-off-by: Jiang Jiacheng <jiangjiacheng@huawei.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
If QEMU replies to device_del command with "DeviceNotFound"
error, then libvirt doesn't clean the device from the live
configuration.
This is because qemuMonitorDelDevice() returns -2 to
qemuDomainDeleteDevice() and instead of calling
qemuDomainRemoveDevice() the qemuDomainDetachDeviceLive() jumps
right onto cleanup label.
Resolves: https://gitlab.com/libvirt/libvirt/-/issues/359
Signed-off-by: Pierre LIBEAU <pierre.libeau@corp.ovh.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
The @vendor variable inside virQEMUCapsCPUDefsToModels() is
allocated, but never freed. But there is actually no need for it
to be allocated, because it merely passes a retval of
virCPUGetVendorForModel() (which returns a const string) to
virDomainCapsCPUModelsAdd() (which ten accepts the argument as
const string). Therefore, drop the g_strdup() call and fix the
type of the variable.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Jiri Denemark <jdenemar@redhat.com>
The path() method is deprecated in 0.55.0 and we're recommended
to use full_path() instead. Interestingly, we were already doing
do in couple of places, but not all of them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The source_root() method is deprecated in 0.56.0 and we're
recommended to use project_source_root() instead.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The build_root() method is deprecated in 0.56.0 and we're
recommended to use project_build_root() instead.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since commit "cpu_x86: Disable blockers from unusable CPU models"
(v3.8.0-99-g9c9620af1d) we explicitly disable CPU features reported by
QEMU as usability blockers for a particular CPU model when creating
baseline or host-model CPU definition. When QEMU changed canonical names
for some features (mostly those with '_' in their names), we forgot to
translate the blocker lists to names used by libvirt and the renamed
features would no longer be explicitly disabled in the created CPU model
even if they were reported as blockers by QEMU.
For example, on a host where EPYC CPU model has the following blockers
<blocker name='sha-ni'/>
<blocker name='mmxext'/>
<blocker name='fxsr-opt'/>
<blocker name='cr8legacy'/>
<blocker name='sse4a'/>
<blocker name='misalignsse'/>
<blocker name='osvw'/>
we would fail to disable 'fxsr-opt':
<cpu mode='custom' match='exact'>
<model fallback='forbid'>EPYC</model>
<feature policy='disable' name='sha-ni'/>
<feature policy='disable' name='mmxext'/>
<feature policy='disable' name='cr8legacy'/>
<feature policy='disable' name='sse4a'/>
<feature policy='disable' name='misalignsse'/>
<feature policy='disable' name='osvw'/>
<feature policy='disable' name='monitor'/>
</cpu>
The 'monitor' feature is disabled even though it is not reported as a
blocker by QEMU because libvirt's definition of EPYC includes the
feature while it is missing in EPYC definition in QEMU.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The API can be used to get usability blockers for an unusable CPU model,
which is not obvious. Let's explicitly document this behavior as it is
now mentioned in the documentation of domain capabilities XML.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
This patch is effectively a no-op, but I wanted to initialize
.getVendorForModel explicitly as implementing this function does not
even make sense on ARM. The CPU models in our CPU map are only used for
describing host CPU in capabilities XML and cannot be used for guest CPU
definition in domain XML anyway. The CPU models listed as supported in
domain capabilities XML are just passed through from QEMU.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
So far QEMU driver does not get CPU model vendor from QEMU directly and
it has to ask the CPU driver for the info stored in CPU map.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Even though several CPU models from various vendors are reported as
usable on a given host, user may still want to use only those that match
the host vendor. Currently the only place where users can check the
vendor of each CPU model is our CPU map, which is considered internal
and users should not really be using it directly. So to allow for such
filtering we now advertise the vendor of each CPU model in domain
capabilities.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The only part of qemuCaps both functions are interested in is the CPU
architecture. Changing them to expect just virArch makes the functions
more reusable.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The ppc64 CPU code still has to load and parse the CPU map everytime it
needs to look at it, which can make some operations pretty slow. Other
archs already switched to loading the CPU map once and keeping the
parsed structure in memory. Let's switch ppc64 as well.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Since the function always returns 0, we can just return void and make
callers simpler.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
In recent commit of v8.8.0-41-g41eb0f446c I've suggested during
review to put both xdr_free() calls under error label, assuming
that xdr_free() accepts NULL and thus is a NOP when the control
jumps onto the label even before either of @arg or @ret was
allocated. Well, turns out, xdr_free() does no accept NULL and
thus we have to guard its call. But since @dispatcher is already
set by the time either of the variables is allocated, we can
replace the condition from 'if (dispatcher)' to 'if (arg)' and
'if (ret)'.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Since they are simply normal RPC messages, the keep alive packets are
subject to the "max_client_requests" limit just like any API calls.
Thus, if a client hits the 'max_client_requests' limit and all the
pending API calls take a long time to complete, it may result in
keep-alives firing and dropping the client connection.
This has been seen by a number of users with the default value of
max_client_requests=5, by issuing 5 concurrent live migration
operations.
By printing a warning message when this happens, admins will be alerted
to the fact that their active clients are exceeding the default client
requests limit.
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Remove the seldom used helper in favor of full virXMLParse.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use the helper with more features to validate the root XML element name
instead of open-coding it.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function provided just checking of the root XML node name which can
be easily moved into the caller wich doesn't do that already and
checking of the pointers which is trivial. Remove the helper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Convert the two outstanding uses to virXMLParseFileCtxt as they always
pass a filename and remove the helper macro.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Most callers prefer using the XPath context. Convert the last user to
use virXMLParseFileCtxt and remove the helper macro.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use virXMLParse so that the code doesn't have to explicitly allocate
an XPath context and validate the root element.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Most callers use virXMLParseStringCtxt. Convert the last use case
and remove the helper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Use virXMLParse's features to validate the top level element and fetch
the XPath context.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
virDomainObjParseFile is the only caller of virDomainObjParseNode.
The code can be merged into it, simplified by using virXMLParse and
the function removed.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Replace virNetworkDefParseString/File by direct calls to
virNetworkDefParse.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Both callers can be easily converted to call virNetworkDefParseXML
directly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
The function was not used. Remove it and merge virInterfaceDefParse
into virInterfaceDefParseString.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Both callers be easily made to call virInterfaceDefParseXML directly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Replace the thin wrappers virNodeDeviceDefParseString/File by directly
calling the main parser.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Both callers be easily made to call virNodeDeviceDefParseXML directly.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
