When users register the threshold event for the top level image with an
explicit index (e.g. vda[3]) they are clearly expecting the index in the
event.
This flag will help avoiding emission of the second event without the
index when the client clearly requested one with the index.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Tell whether a port definition is an ovs managed virtual port
Signed-off-by: Jinsheng Zhang <zhangjl02@inspur.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
It is possible to define/edit(in shut off state) a domain XML with
same hostdev device repeated more than once, as shown below. This
behavior is not expected. So, this patch fixes it.
vser1:
<domain type='kvm'>
[...]
<devices>
[...]
<hostdev mode='subsystem' type='mdev' managed='no' model='vfio-ccw'>
<source>
<address uuid='8e782fea-e5f4-45fa-a0f9-024cf66e5009'/>
</source>
<address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0005'/>
</hostdev>
<hostdev mode='subsystem' type='mdev' managed='no' model='vfio-ccw'>
<source>
<address uuid='8e782fea-e5f4-45fa-a0f9-024cf66e5009'/>
</source>
<address type='ccw' cssid='0xfe' ssid='0x0' devno='0x0006'/>
</hostdev>
[...]
</devices>
</domain>
$ virsh define vser1
Domain 'vser1' defined from vser1
Signed-off-by: Shalini Chellathurai Saroja <shalini@linux.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Iterating over all child elements of a node does not require xpath.
By doing away with xpath for this code, the code can be simplified.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Cleanup to follow. This removes the last re-use of `nodes` in this function,
eliminating two VIR_FREEs.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Iterating over all child elements of a node does not require xpath.
By doing away with xpath for this code, the code can be simplified.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
`feature` is always one of the values listed in the switch,
ensured by `virDomainKVMTypeFromString` above.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Iterating over all child elements of a node does not require xpath.
By doing away with xpath for this code, the code can be simplified.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Iterating over all child elements of a node does not require xpath.
By doing away with xpath for this code, the code can be simplified.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Iterating over all child elements of a node does not require xpath.
By doing away with xpath for this code, the code can be inlined and
simplified. This also removes the re-use of `nodes`, elimininating
two VIR_FREEs.
Signed-off-by: Tim Wiederhake <twiederh@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
'file' is too generic to know what's going on. Rename it to
'memorysnapshotfile'.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
When adding support for externally launched virtiofsd,
I was too liberal and did not require a target.
But the target is required, because it's passed to the
QEMU device, not to virtiofsd.
https://bugzilla.redhat.com/show_bug.cgi?id=1969232
Fixes: 12967c3e1333a6e106110f449ccb1e96279b9527
Fixes: 56dcdec1ac8104f94371c210585bab91eb36395d
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Links between NUMA nodes can have different latencies and
bandwidths. This info is newly defined in ACPI 6.2 under
Heterogeneous Memory Attribute Table (HMAT) table. Linux kernel
learned how to report these values under sysfs and thus we can
expose them in our capabilities XML. The sysfs interface is
documented in kernel's Documentation/admin-guide/mm/numaperf.rst.
Long story short, two nodes can be in initiator-target
relationship. A node can be initiator if it has a CPU or a device
that's capable of initiating memory transfer. Therefore a node
that has just memory can only be target. An initiator-target link
can then have any combination of {bandwidth, latency} - {access,
read, write} attribute (6 in total). However, the standard says
access is applicable iff read and write values are the same.
Therefore, we really have just four combinations of attributes:
bandwidth-read, bandwidth-write, latency-read, latency-write.
This is the combination that kernel reports anyway.
Then, under /sys/system/devices/node/nodeX/acccessN/initiators we
find values for those 4 attributes and also symlinks named
"nodeN" which then represent initiators to nodeX. For instance:
/sys/system/node/node1/access1/initiators/node0 -> ../../node0
/sys/system/node/node1/access1/initiators/read_bandwidth
/sys/system/node/node1/access1/initiators/read_latency
/sys/system/node/node1/access1/initiators/write_bandwidth
/sys/system/node/node1/access1/initiators/write_latency
This means that node0 is initiator and node1 is target and values
of the interconnect can be read.
In theory, there can be separate links to memory side caches too
(e.g. one link from node X to node Y's main memory, another from
node X to node Y's L1 cache, another one to L2 cache and so on).
But sysfs does not express this relationship just yet.
The "accessN" means either "access0" or "access1". The difference
is that while the former expresses the best interconnect between
two nodes including CPUS and I/O devices (such as GPUs and NICs),
the latter includes only CPUs and thus is what we need.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1786309
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Expose virNumaInterconnect XML formatter so that it can be
re-used by other parts of the code.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
There's nothing domain specific about NUMA interconnects. Rename
the virDomainNumaInterconnect* structures and enums to
virNumaInterconnect*.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Memory on a NUMA node can have a side caches. Configuring these
for a domain was implemented in v6.6.0-rc1~249 and friends.
However, up until now mgmt applications did not really know what
values to pass because we were not exposing caches of the host.
With recent enough kernel these are exposed under sysfs and with
a bit of parsing we can extend our capabilities XML. The sysfs
structure is documented in kernel's
Documentation/admin-guide/mm/numaperf.rst and basically maps in
1:1 fashion to our virNumaCache structure.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
Expose virNumaCache XML formatter so that it can be re-used by
other parts of the code.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
There's nothing domain specific about NUMA memory caches. Rename the
virDomainCache* structures and enums to virNumaCache*.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
The way we format <cpu/> element for capabilities is not ideal,
because if there are no CPUs, i.e. no child elements, we still
output opening and closing element. To solve this,
virXMLFormatElement() could be used but that would introduce more
variables into the loop. Therefore, move the formatter into a
separate function and use virXMLFormatElement().
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
In a few places we take 1 and shift it left repeatedly. So much
that it won't longer fit into signed integer. The problem is that
this is undefined behaviour. Switching to 1U makes us stay within
boundaries.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
In a few places it may happen that the array we want to sort is
still NULL (e.g. because there were no leases found, no paths for
secdriver to lock or no cache banks). However, passing NULL to
qsort() is undefined and even though glibc plays nicely we
shouldn't rely on undefined behaviour.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Tim Wiederhake <twiederh@redhat.com>
I've identified some places (mostly by looking for
virBufferUse()) that can use virXMLFormatElement() instead of
open coded version of it. I'm sure there are many more places
that could use the same treatment. Let's cure them some other
time.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Before the mentioned commit we always parsed the whole disk definition
for qemuDomainBlockCopy API but we only used the @src part. Based on
that assumption the code was changed to parse only the disk <source>
element.
Unfortunately that is not correct as we need to parse some parts of
<driver> element as well.
Fixes: 0202467c4ba8663db2304b140af609f93a9b3091
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
Attribute `type` and sub-element `metadata_cache` are internally stored
in the `virStorageSource` structure. Sometimes we only care about the
disk source bits so we need a dedicated helper for that.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Peter Krempa <pkrempa@redhat.com>
We supported autostart of node devices via an xml element, but this
is not consistent with other libvirt objects which use an explicit API
for setting autostart status. So revert this and implement it as an
official API in a future commit.
The initial support was refactored after merging, so this commit reverts
both of those previous commits.
Revert "virNodeDevCapMdevParseXML: Use virXMLPropEnum() for ./start/@type"
This reverts commit 9d4cd1d1cda84aa15b77a506f2ad6362a74edf1a.
Revert "nodedev: support auto-start property for mdevs"
This reverts commit 42a558549935336cbdb7cbfe8b239ffb0e3442e3.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
In one of my recent commits I've done some renaming. But whilst
doing so I also mistakenly replaced 'goto cleanup' with 'return
-1' in virCapabilitiesHostNUMAInitReal() which was incorrect.
Fixes: fe25224fdaa53bbeceed3ddeef1b3a150665e656
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Martin Kletzander <mkletzan@redhat.com>
virDomainNetRemove() requires the index of the net device you want to
remove from the list, but in some cases you may not have the index
handy, only the object itself (or the object may not have been added
to the domain's list). virDomainNetRemoveByObj() first tries to find
the given object in the nets list, and deletes that if it is found.
As with virDomainNetRemove() it always unconditionally tries to remove
the device from the hostdevs list (in case it is the ridiculous
combined net+hostdev device created for <interface type='hostdev'>).
Signed-off-by: Laine Stump <laine@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
So far, we have to places where we format <metadata/> into XMLs:
domain and network. Bot places share the same code. Move it into
a helper function and just call it from those places.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
In case the user wants to share the disk image between multiple VMs the
qemu driver needs to hotplug such disks to instantiate the backends.
Since that doesn't work for all disk configs add a switch to force this
behaviour.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Replace the last use of the function by virDomainDiskInsert and remove
the unused helper.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
None of them are currently needed to pass our upstream CI, most were
either for ancient clang versions or coverity for silencing false
positives.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
