Similar to scsi_host and fc_host, there is a relation between a
scsi_target and its transport specific fc_remote_port. Let's expose this
relation and relevant information behind it.
An example for a virsh nodedev-dumpxml:
virsh # nodedev-dumpxml scsi_target0_0_0
<device>
<name>scsi_target0_0_0</name>
<path>/sys/devices/[...]/host0/rport-0:0-0/target0:0:0</path>
<parent>scsi_host0</parent>
<capability type='scsi_target'>
<target>target0:0:0</target>
<capability type='fc_remote_port'>
<rport>rport-0:0-0</rport>
<wwpn>0x9d73bc45f0e21a86</wwpn>
</capability>
</capability>
</device>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Now that the node_device driver is aware of CCW devices, let's hook up
virsh so that we can filter them properly.
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
Make CCW devices available to the node_device driver. The devices are
already seen by udev so let's implement necessary code for detecting
them properly.
Topologically, CCW devices are similar to PCI devices, e.g.:
+- ccw_0_0_1a2b
|
+- scsi_host0
|
+- scsi_target0_0_0
|
+- scsi_0_0_0_0
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Signed-off-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1420740
Testing found an inventive way to cause an error at shutdown by providing the
parent name for the fc host creation using the "same name" as the HBA. Since
the code thus assumed the parent host name provided was the parent HBA and
just extracted out the host number and sent that along to the vport_destroy
this avoided checks made for equality.
So just add the equality check to that path to resolve.
If the first console is just a copy of the first serial device we
don't need to iterate over the same device twice in order to perform
actions like security labeling, cgroup configuring, etc.
Currently only security SELinux manager was aware of this fact.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
To every virDirOpen we must have VIR_DIR_CLOSE otherwise FD is
leaked.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Start discovering the mediated devices on the host system and format the
attributes for the mediated device into the XML. Compared to the parent
device which reports generic information about the abstract mediated
devices types, a child device only reports the type name it has been
instantiated from and the IOMMU group number, since that's device
specific compared to the rest of the info that can be gathered about
mediated devices at the moment.
This patch introduces both the formatting and parsing routines, updates
nodedev.rng schema, adding a testcase as well.
The resulting mdev child device XML:
<device>
<name>mdev_4b20d080_1b54_4048_85b3_a6a62d165c01</name>
<path>/sys/devices/.../4b20d080-1b54-4048-85b3-a6a62d165c01</path>
<parent>pci_0000_06_00_0</parent>
<driver>
<name>vfio_mdev</name>
</driver>
<capability type='mdev'>
<type id='vendor_supplied_type_id'/>
<iommuGroup number='NUM'/>
<capability/>
<device/>
https://bugzilla.redhat.com/show_bug.cgi?id=1452072
Signed-off-by: Erik Skultety <eskultet@redhat.com>
The parent device needs to report the generic stuff about the supported
mediated devices types, like device API, available instances, type name,
etc. Therefore this patch introduces a new nested capability element of
type 'mdev_types' with the resulting XML of the following format:
<device>
...
<capability type='pci'>
...
<capability type='mdev_types'>
<type id='vendor_supplied_id'>
<name>optional_vendor_supplied_codename</name>
<deviceAPI>vfio-pci</deviceAPI>
<availableInstances>NUM</availableInstances>
</type>
...
<type>
...
</type>
</capability>
</capability>
...
</device>
https://bugzilla.redhat.com/show_bug.cgi?id=1452072
Signed-off-by: Erik Skultety <eskultet@redhat.com>
The reason for introducing two capabilities, one for the device itself
(cap 'mdev') and one for the parent device listing the available types
('mdev_types'), is that we should be able to do
'virsh nodedev-list --cap' not only for existing mdev devices but also
for devices that support creation of mdev devices, since one day libvirt
might be actually able to create the mdev devices in an automated way
(just like we do for NPIV/vHBA).
https://bugzilla.redhat.com/show_bug.cgi?id=1452072
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Since there's at least SRIOV and MDEV sub-capabilities to be parsed,
let's make the code more readable by splitting it to several logical
blocks.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Add a new <ioapic> element with a driver attribute.
Possible values are qemu and kvm. With 'qemu', the I/O
APIC can be put in the userspace even for KVM domains.
https://bugzilla.redhat.com/show_bug.cgi?id=1427005
The @type from virFileReadValueString needs to be VIR_FREE each time
through the loop since it's not saved and since cleanup can be reached
prior to decoding it for @kernel_type amd bank->type, the cleanup code
needs to also have a VIR_FREE
Found by Coverity
We're only adding only info about L3 caches, we can add more
later (just by changing one line), but for now that's more than enough
without overwhelming anyone.
XML snippet of how this should look like (also seen as part of the commit):
<cache>
<bank id='0' level='3' type='both' size='8192' unit='KiB' cpus='0-7'/>
</cache>
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
It is no longer needed thanks to the great virfilewrapper.c. And this
way we don't have to add a new set of functions for each prefixed
path.
While on that, add two functions that weren't there before, string and
scaled integer reading ones. Also increase the length of the string
being read by one to accompany for the optional newline at the
end (i.e. change INT_STRLEN_BOUND to INT_BUFSIZE_BOUND).
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
When adding a nwfilter onto the list in
virNWFilterObjListAssignDef() this array is re-allocated to match
demand for new size. However, it is never freed leading to a
leak:
==26535== 136 bytes in 1 blocks are definitely lost in loss record 1,079 of 1,250
==26535== at 0x4C2E2BE: realloc (vg_replace_malloc.c:785)
==26535== by 0x54BA28E: virReallocN (viralloc.c:245)
==26535== by 0x54BA384: virExpandN (viralloc.c:294)
==26535== by 0x54BA657: virInsertElementsN (viralloc.c:436)
==26535== by 0x55DB011: virNWFilterObjListAssignDef (virnwfilterobj.c:362)
==26535== by 0x55DB530: virNWFilterObjListLoadConfig (virnwfilterobj.c:503)
==26535== by 0x55DB635: virNWFilterObjListLoadAllConfigs (virnwfilterobj.c:539)
==26535== by 0x2AC5A28B: nwfilterStateInitialize (nwfilter_driver.c:250)
==26535== by 0x5621C64: virStateInitialize (libvirt.c:770)
==26535== by 0x124379: daemonRunStateInit (libvirtd.c:881)
==26535== by 0x554AC78: virThreadHelper (virthread.c:206)
==26535== by 0x8F5F493: start_thread (in /lib64/libpthread-2.23.so)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
... with VIR_NET_GENERATED_MACV???_PREFIX, which is defined in
util/virnetdevmacvlan.h.
Since VIR_NET_GENERATED_PREFIX is used for plain tap devices, it is
renamed to VIR_NET_GENERATED_TAP_PREFIX and moved to virnetdev.h
The parser had been clearing out *all* suggested device names for
type='direct' (aka macvtap) interfaces. All of the code implementing
macvtap allows for a user-specified device name, so we should allow
it. In the case that an interface name starts with "macvtap" or
"macvlan" though, we do still clear it out, just as we do with "vnet"
(which is the prefix used for automatically generated tap device
names), since those are the prefixes for the names we autogenerate for
macvtap and macvlan devices.
Resolves: https://bugzilla.redhat.com/1335798
This patch introduces
<cache level='N' mode='emulate'/>
<cache mode='passthrough'/>
<cache mode='disable'/>
sub element of /domain/cpu. Currently only a single <cache> element is
allowed.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
The type of this parameter is virCPUType so calling it 'mode' is pretty
strange, 'type' is a much better name.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Rather than overloading one function - split apart the logic to have
separate interfaces and local/private structures to manage the data
for which the helper is collecting.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than 'nuuids' it should be 'maxuuids' and rather than 'got'
it should be 'nuuids'. Alter the logic of the list traversal to
utilize those names.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than using "ret = -1" and cleanup processing, alter the return
path on failure to goto error and then just return the data.got.
In the error path, we no longer check for ret < 0, we just can free
anything added to the array and return -1 directly.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than dereferencing obj->def->X, create a local 'def' variable
that will dereference the def and use directly.
Signed-off-by: John Ferlan <jferlan@redhat.com>
When processing a virSecretPtr use 'secret' as a variable name.
When processing a virSecretObjPtr use 'obj' as a variable name.
When processing a virSecretDefPtr use 'def' as a variable name,
unless a distinction needs to be made with a 'newdef' such as
virSecretObjListAddLocked (which also used the VIR_STEAL_PTR macro
for the configFile and base64File).
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than have the caller check if !obj before calling, just check
in the function for !obj and return.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Make various virSecretObjList*Locked functions static and make
virSecretObjNew static since they're only called within virtsecretobj.c.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Only save the config when using a generated UUID if we were able to
create an object for the def. There could have been "other reasons"
for the assignment to fail, so saving the config could be incorrect.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than "wait" for the first config file to be created, force creation
of the configDir during driver state initialization.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Essentially virNWFilterSaveDef executed in a different order the same
sequence of calls, so let's just make one point of reference.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move from virnwfilterobj.h to virnwfilterobj.c.
Create the virNWFilterObjListNew() API in order to allocate.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move the structure to virnwfilterobj.c and create necessary accessor API's
for the various fields.
Also make virNWFilterObjFree static since there's no external callers.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than dereferencing obj->def->XXX or nwfilters->objs[i]->X
create local virNWFilterObjPtr and virNWFilterDefPtr variables.
Future adjustments will be privatizing the object more, so this just
prepares the code for that reality.
Signed-off-by: John Ferlan <jferlan@redhat.com>
When processing a virNWFilterPtr use 'nwfilter' as a variable name.
When processing a virNWFilterObjPtr use 'obj' as a variable name.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Instead of figuring out upfront whether <input> will be a single
or a pair element, format the subelements into a separate buffer
and close <input/> early if this buffer is empty.
Shorten the time needed to keep the list lock and alter the cleanup
path to be more of an error path.
Utilize the the virObjectListFree function to handle the calls for
virObjectUnref on each list element and the VIR_FREE of the list
instead of open coding it.
Change the name of the virHashForEach callback to match the name
of the Export function with the Callback added onto it.
Signed-off-by: John Ferlan <jferlan@redhat.com>
It was left there after removing a macro it was part of in first
version or so. Now it will always be NULL.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
We are currently parsing only rx/frames/max because that's the only
value that makes sense for us. The tun device just added support for
this one and the others are only supported by hardware devices which
we don't need to worry about as the only way we'd pass those to the
domain is using <hostdev/> or <interface type='hostdev'/>. And in
those cases the guest can modify the settings itself.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
So far there is probably no change that is allowed to be done
by the VIR_DOMAIN_DEF_PARSE_ABI_UPDATE flag that would break
guest ABI but this may change in the future.
This introduces new VIR_DOMAIN_DEF_PARSE_ABI_UPDATE_MIGRATION
which should be used only for ABI updates that are "safe" for
persistent migration.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Use "virNetworkObj" as a prefix for any external API in virnetworkobj.
Also a couple of functions were local to virnetworkobj.c, so remove their
external defs in virnetworkobj.h.
Rename the API to be a better description of what it does. Besides, a
subsequent patch will rename virNetworkAssignDef to virNetworkObjAssignDef
so rather than make that patch confusing we'll take the intermittent step
in this patch.
In an effort to be consistent with the source module, alter the function
prototypes to follow the similar style of source with the "type" on one
line followed by the function name and arguments on subsequent lines with
with argument getting it's own line.
Alter the format of the code to follow more recent style guidelines of
two empty lines between functions, function decls with "[static] type"
on one line followed by function name with arguments to functions each
on one line.
Move all the virNetworkObj related API/data structures into their own
modules virnetworkobj.{c,h} from the network_conf.{c,h}
Purely code motion at this point plus adjustments to cleanly build
Mostly code motion to move nwfilterConnectListNWFilters into nwfilterobj.c
and rename to virNWFilterObjGetNames.
Also includes a couple of variable name adjustments to keep code consistent
with other drivers.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Mostly code motion from nwfilter_driver to virnwfilterobj with one caveat
to add the virNWFilterObjListFilter typedef and pass it as an 'aclfilter'
argument to allow for future possible test driver adjustments to count
the number of filters (similar to how node device has done this).
Signed-off-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1420740
If the parent is not a scsi_host, then we can just happily return since
we won't be removing a vport.
Fixes a bug with the following output:
$ virsh pool-destroy host4_hba_pool
error: Failed to destroy pool host4_hba_pool
error: internal error: Invalid adapter name 'pci_0000_10_00_1' for SCSI pool
$
https://bugzilla.redhat.com/show_bug.cgi?id=1233129
The virStoragePoolObjSourceFindDuplicate logic used by PoolCreateXML
and PoolDefineXML avoids comparing the new definition against "other"
pool types. This can cause unexpected corruption if two different pool
source types used the same source device path. For example, a 'disk'
pool using source type device=/dev/sdc could be unwittingly overwritten
by using /dev/sdc for a 'logical' pool which also uses the source
device path.
So rather than blindly ignoring those checks when def->type !=
pool->def->type - have the pool->def->type switch logic handle the
check for which def->type's should be checked.
Refactor virStoragePoolObjSourceFindDuplicate into smaller units
separated by the "supported" pool source type. The ISCSI, FS,
LOGICAL, DISK, and ZFS pools can use "<source>... <device='%s'/>...
</source>".
Alter the logic slightly to return the matching pool or NULL rather
than setting matchpool = pool and break. Easier to read that way.
In the effort to reduce the virStoragePoolObjSourceFindDuplicate logic,
create a new helper which will handle all the ISCSI type differences.
Alter things just a little bit to return NULL or pool rather than
using breaks and matchpool = pool, then break. Also rather than creating
variables withing the if...else if... conditions, have them all at the
top of the function to make things a bit easier to read.
Refactor virStoragePoolObjSourceFindDuplicate into smaller units
separated by the "supported" pool source type. The DIR, GLUSTER,
and NETFS pools all can use "<source>... <dir='%s'/>... </source>".
Alter the logic slightly to return the matching pool or NULL rather
than setting matchpool = pool and break. Easier to read that way.
The property is necessary also for the disk using the source (e.g. cdrom)
which needs to be kept readonly.
Commit '462c4b66' was a bit too aggressive in this aspect, since the
readonly flag is set only while parsing.
Mostly code motion to move storageConnectList[Defined]StoragePools
and similar test driver code into virstorageobj.c and rename to
virStoragePoolObjGetNames.
Also includes a couple of variable name adjustments to keep code consistent
with other drivers.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Unify the NumOf[Defined]StoragePools API into virstorageobj.c from
storage_driver and test_driver. The only real difference between the
two is the test driver doesn't call using the aclfilter API.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Mostly code motion to move storagePoolListVolumes code into virstorageobj.c
and rename to virStoragePoolObjVolumeGetNames.
Also includes a couple of variable name adjustments to keep code consistent
with other drivers.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Unify the NumOfVolumes API into virstorageobj.c from storage_driver and
test_driver. The only real difference between the two is the test driver
doesn't call using the aclfilter API.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Commit 14319c81a0 introduced CPU host model in domain capabilities
and the *hostmodel* variable is always filled by virCPUDefCopy()
and needs to be freed.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
For both virNodeDeviceObjNumOfDevices and virNodeDeviceObjGetNames, the
check should be if the aclfilter doesn't exist or if it does exist, then
it must pass
Unify the *ListDevice API into virnodedeviceobj.c from node_device_driver
and test_driver. The only real difference between the two is that the test
driver doesn't call the aclfilter API. The name of the new API follows that
of other drivers to "GetNames".
NB: Change some variable names to match what they really are - consistency
with other drivers. Also added a clear of the input names.
This also allows virNodeDeviceObjHasCap to be static to virnodedeviceobj
Signed-off-by: John Ferlan <jferlan@redhat.com>
Unify the NumOfDevices API into virnodedeviceobj.c from node_device_driver
and test_driver. The only real difference between the two is that the test
driver doesn't call the aclfilter API.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Unlike other drivers, this is a test driver only API. Still combining
the logic of testConnectListInterfaces and testConnectListDefinedInterfaces
makes things a bit easier in the long run.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Unlike other drivers, this is a test driver only API. Still combining
the logic of testConnectNumOfInterfaces and testConnectNumOfDefinedInterfaces
makes things a bit easier in the long run.
Signed-off-by: John Ferlan <jferlan@redhat.com>
If formatting NUMA topology fails, the function returns immediatelly,
but the buffer structure allocated on the stack references lot of
heap-allocated memory and that would get lost in such case.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Even though the virMacMap object is not necessarily created at
the same time as the network object, the former makes no sense
without the latter and thus should be unref'd in the network
object dispose function.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Currently, if we want to zero out disk source (e,g, due to
startupPolicy when starting up a domain) we use
virDomainDiskSetSource(disk, NULL). This works well for file
based storage (storage type file, dir, or block). But it doesn't
work at all for other types like volume and network.
So imagine that you have a domain that has a CDROM configured
which source is a volume from an inactive pool. Because it is
startupPolicy='optional', the CDROM is empty when the domain
starts. However, the source element is not cleared out in the
status XML and thus when the daemon restarts and tries to
reconnect to the domain it refreshes the disks (which fails - the
storage pool is still not running) and thus the domain is killed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
So far our code is full of the following pattern:
dom = virGetDomain(conn, name, uuid)
if (dom)
dom->id = 42;
There is no reasong why it couldn't be just:
dom = virGetDomain(conn, name, uuid, id);
After all, client domain representation consists of tuple (name,
uuid, id).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1398087
Clean up the virsh man page description for --pool-create-as in order
to better describe how the various arguments are used when creating
(or defining) a logical pool.
Also modify the storage pool XML parsing algorithm to check for the
mismatched "name" and "source-name".
While parsing if the storage source is not present, then a defaultFormat
was not set. This could lead to oddities such as seeing "unknown" format
in output for the "logical" pool even though the only format the pool could
support would be "lvm2".
This does "put a label" on other pool defaults as follows:
File System: FS_AUTO
Network File System: NETFS_AUTO
Disk: UNKNOWN
Each of which is the "0" value for their respective pools and thus
would be no "real" change.
The frequency is documented and formatted as an attribute of the <timer>
element rather than a nested <frequency> element expected by the parser.
Luckily enough, timer frequency has not been used by any driver so far.
And users were not able to set it in the XML either.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
This is the maximum for many reasons, for starters because index ==
bus number, and a controller's bus number is 8 bits.
This incidentally resolves: https://bugzilla.redhat.com/1329090
This merely introduces virDomainHostdevMatchSubsysMediatedDev method that
is supposed to check whether device being cold-plugged does not already
exist in the domain configuration.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
A mediated device will be identified by a UUID (with 'model' now being
a mandatory <hostdev> attribute to represent the mediated device API) of
the user pre-created mediated device. We also need to make sure that if
user explicitly provides a guest address for a mdev device, the address
type will be matching the device API supported on that specific mediated
device and error out with an incorrect XML message.
The resulting device XML:
<devices>
<hostdev mode='subsystem' type='mdev' model='vfio-pci'>
<source>
<address uuid='c2177883-f1bb-47f0-914d-32a22e3a8804'>
</source>
</hostdev>
</devices>
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Just to make the code a bit cleaner, move hostdev specific post parse
code to its own function just in case it grows in the future.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Just a tiny wrapper over the SCSI def clearing logic to drop some
if-else branches from a switch, mainly because extending the switch in
the future would render the current code with branching less readable.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Enforce virDomainHostdevSubsysType checking during compilation. Again,
one of a few spots in our code where we should enforce the typecast to
the enum type, thus not forgetting to update *all* switch occurrences
dealing with the give enum.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
This way more drivers can utilize the functionality without copying
the code. And we can therefore test it in one place for all of them.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
There is no "node driver" as there was before, drivers have to do
their own ACL checking anyway, so they all specify their functions and
nodeinfo is basically just extending conf/capablities. Hence moving
the code to src/conf/ is the right way to go.
Also that way we can de-duplicate some code that is in virsysfs and/or
virhostcpu that got duplicated during the virhostcpu.c split. And
Some cleanup is done throughout the changes, like adding the vir*
prefix etc.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
There is no reason for it not to be in the utils, all global symbols
under that file already have prefix vir* and there is no reason for it
to be part of DRIVER_SOURCES because that is just a leftover from
older days (pre-driver modules era, I believe).
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Guests are handled in callers, but if something goes wrong (when it
cannot be added to virCapabilities, for example), there's no way for
them to free it properly.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
When using thin provisioning, management tools need to resize the disk
in certain cases. To avoid having them to poll disk usage introduce an
event which will be fired when a given offset of the storage is written
by the hypervisor. Together with the API which will be added later, it
will allow registering thresholds for given storage backing volumes and
this event will then notify management if the threshold is exceeded.
Since the code checks and handles NULL parameters, remove the NONNULL
from the prototype.
Also fix the comment in the source to reference the right name.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Since the code checks and handles a NULL 'node' before proceeding
there's no need for the prototype with the NONNULL(2).
Signed-off-by: John Ferlan <jferlan@redhat.com>
For some drivers the domain's machine type makes no sense. They
just don't use it. A great example is bhyve driver. Therefore it
makes very less sense to report machine in domain capabilities
XML.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Use "virStoragePoolObj" as a prefix for any external API in virstorageobj.
Also a couple of functions were local to virstorageobj.c, so remove their
external defs iin virstorageobj.h.
NB: The virStorageVolDef* API's won't change.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In an effort to be consistent with the source module, alter the function
prototypes to follow the similar style of source with the "type" on one
line followed by the function name and arguments on subsequent lines with
with argument getting it's own line.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Alter the format of the code to follow more recent style guidelines of
two empty lines between functions, function decls with "[static] type"
on one line followed by function name with arguments to functions each
on one line.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move all the StoragePoolObj related API's into their own module
virstorageobj from the storage_conf
Purely code motion at this point, plus adjustments to cleanly build
Signed-off-by: John Ferlan <jferlan@redhat.com>
The attribute can be used to request a specific way of checking whether
the virtual CPU matches created by the hypervisor matches the
specification in domain XML.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
QEMU 2.9 introduces the pcie-root-port device, which is
a generic version of the existing ioh3420 device.
Make the new device available to libvirt users.
Commit id 'bb74a7ffe' added a fairly non specific message when providing
only the <parent wwnn='xxx'/> or <parent wwpn='xxx'/> instead of providing
both wwnn and wwpn. This patch just modifies the message to be more specific
about which was missing.
Rather than returning true/false and having the caller check if the
vHBA was actually created, let's do that check within the CreateVport
function. That way the caller can faithfully assume success based
on a name start the thread looking for the LUNs. Prior to this change
it's possible that the vHBA wasn't really created (e.g if the call to
virVHBAGetHostByWWN returned NULL), we'd claim success, but in reality
there'd be no vHBA for the pool. This also fixes a second yet seen
issue that if the nodedev was present, but the parent by name wasn't
provided (perhaps parent by wwnn/wwpn or by fabric_name), then a failure
would be returned. For this path it shouldn't be an error - we should
just be happy that something else is managing the device and we don't
have to create/delete it.
The end result is that the createVport code can now just start the
refresh thread once it gets a non NULL name back.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move the bulk of createVport and rename to virNodeDeviceCreateVport.
Remove the deleteVport entirely and replace with virNodeDeviceDeleteVport
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move the virStoragePoolSourceAdapter from storage_conf.h and rename
to virStorageAdapter.
Continue with code realignment for brevity and flow.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rework the helpers/APIs to use the FCHost and SCSIHost adapter types.
Continue to realign the code for shorter lines.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rework the helpers/APIs to use the FCHost and SCSIHost adapter types.
Continue to realign the code for shorter lines.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than have lots of ugly inline code, create helpers to try and
make things more readable. While creating the helpers realign the code
as necessary.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than have lots of ugly inline code, create helpers to try and
make things more readable. While creating the helpers realign the code
as necessary.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Rather than use virXPathString, pass along an virXPathNode and alter
the parsing to use virXMLPropString.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Split out the code that munges through the storage pool adapter into
helpers - it's about to be moved into it's own source file.
This is purely code motion at this point.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Commit id 'bb74a7ffe' added some new fields to search for a fchost by
parent wwnn/wwpn or parent_fabric_name, but neglected to validate that
the data within the fields was valid at parse time. This could lead to
eventual failure at run time, so rather than have the failure then, let's
validate now.
Signed-off-by: John Ferlan <jferlan@redhat.com>
https://bugzilla.redhat.com/show_bug.cgi?id=1428209
Commit id 'bb74a7ffe' neglected to check that both the parent_wwnn
parent_wwpn are in the XML if one or the other is similar to how
the node device code checked (commit id '2b13361bc').
If only one is provided, the "default" is to use a vHBA capable
adapter (see commit id '78be2e8b'), so the vHBA could start, but
perhaps not on the expected adapter.
Signed-off-by: John Ferlan <jferlan@redhat.com>
For NVDIMM devices it is optionally possible to specify the size
of internal storage for namespaces. Namespaces are a feature that
allows users to partition the NVDIMM for different uses.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Now that NVDIMM has found its way into libvirt, users might want
to fine tune some settings for each module separately. One such
setting is 'share=on|off' for the memory-backend-file object.
This setting - just like its name suggest already - enables
sharing the nvdimm module with other applications. Under the hood
it controls whether qemu mmaps() the file as MAP_PRIVATE or
MAP_SHARED.
Yet again, we have such config knob in domain XML, but it's just
an attribute to numa <cell/>. This does not give fine enough
tuning on per-memdevice basis so we need to have the attribute
for each device too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
NVDIMM is new type of memory introduced into QEMU 2.6. The idea
is that we have a Non-Volatile memory module that keeps the data
persistent across domain reboots.
At the domain XML level, we already have some representation of
'dimm' modules. Long story short, NVDIMM will utilize the
existing <memory/> element that lives under <devices/> by adding
a new attribute 'nvdimm' to the existing @model and introduce a
new <path/> element for <source/> while reusing other fields. The
resulting XML would appear as:
<memory model='nvdimm'>
<source>
<path>/tmp/nvdimm</path>
</source>
<target>
<size unit='KiB'>523264</size>
<node>0</node>
</target>
<address type='dimm' slot='0'/>
</memory>
So far, this is just a XML parser/formatter extension. QEMU
driver implementation is in the next commit.
For more info on NVDIMM visit the following web page:
http://pmem.io/
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
VIR_CONNECT_LIST_STORAGE_POOLS_VSTORAGE and
VIR_CONNECT_LIST_STORAGE_POOLS_ZFS were added to libvirt but the listing
API was not properly updated to use them.
https://bugzilla.redhat.com/show_bug.cgi?id=1431543
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
bhyve supports 'gop' video device that allows clients to connect
to VMs using VNC clients. This commit adds support for that to
the bhyve driver:
- Introducr 'gop' video device type
- Add capabilities probing for the 'fbuf' device that's
responsible for graphics
- Update command builder routines to let users configure
domain's VNC via gop graphics.
Signed-off-by: Roman Bogorodskiy <bogorodskiy@gmail.com>
This reverts commit c96bd78e4e.
So our code is one big mess and we modify domain definition while
building qemu_command line and our hotplug code share only part
of the parsing and command line building code. Let's revert
that change because to fix it properly would require refactor and
move a lot of things.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1430275
We should skip <listen type='socket'/> only if the 'socket' path
is specified because if there is no 'socket' path we need to
keep that element in migratable XML.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1366088
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
When libvirtd is started we call qemuDomainRecheckInternalPaths
to detect whether a domain has VNC socket path generated by libvirt
based on option from qemu.conf. However if we are parsing status XML
for running domain the existing socket path can be generated also if
the config XML uses the new <listen type='socket'/> element without
specifying any socket.
The current code doesn't make difference how the socket was generated
and always marks it as "fromConfig". We need to store the
"autoGenerated" value in the status XML in order to preserve that
information.
The difference between "fromConfig" and "autoGenerated" is important
for migration, because if the socket is based on "fromConfig" we don't
print it into the migratable XML and we assume that user has properly
configured qemu.conf on both hosts. However if the socket is based
on "autoGenerated" it means that a new feature was used and therefore
we need to leave the socket in migratable XML to make sure that if
this feature is not supported on destination the migration will fail.
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
In an effort to be consistent with the source module, alter the function
prototypes to follow the similar style of source with the "type" on one
line followed by the function name and arguments on subsequent lines with
with argument getting it's own line.
Alter the format of the code to follow more recent style guidelines of
two empty lines between functions, function decls with "[static] type"
on one line followed by function name with arguments to functions each
on one line.
Move all the NWFilterObj API's into their own module virnwfilterobj
from the nwfilter_conf
Purely code motion at this point, plus adjustments to cleanly build.
Proposed formal coding conventions encourage defining typedefs for
vir[Blah] and vir[Blah]Ptr separately from the associated struct named
_vir[Blah]:
typedef struct _virBlah virBlah;
typedef virBlah *virBlahPtr;
struct _virBlah {
...
};
At some point in the past, I had submitted several patches using a
more compact style that I prefer, and they were accepted:
typedef struct _virBlah {
...
} virBlah, *virBlahPtr;
Since these are by far a minority among all struct definitions, this
patch changes all those definitions to reflect the style prefered by
the proposal so that there is 100% consistency.
In an effort to be consistent with the source module, alter the function
prototypes to follow the similar style of source with the "type" on one
line followed by the function name and arguments on subsequent lines with
with argument getting it's own line.
Alter the format of the code to follow more recent style guidelines of
two empty lines between functions, function decls with "[static] type"
on one line followed by function name with arguments to functions each
on one line.
Changes in commit id 'dec6d9df' caused a compilation failure on a RHEL6
CI build environment. So just replace 'system' with 'syscap' as a name.
cc1: warnings being treated as errors
../../src/conf/node_device_conf.c: In function 'virNodeDevCapSystemParseXML':
../../src/conf/node_device_conf.c:1415: error: declaration of 'system' shadows a global declaration [-Wshadow]
In an effort to be consistent with the source module, alter the function
prototypes to follow the similar style of source with the "type" on one
line followed by the function name and arguments on subsequent lines with
with argument getting it's own line.
Alter the format of the code to follow more recent style guidelines of
two empty lines between functions, function decls with "[static] type"
on one line followed by function name with arguments to functions each
on one line.
Move all the NodeDeviceObj API's into their own module virnodedeviceobj
from the node_device_conf
Purely code motion at this point, plus adjustments to cleanly build.
The 'nodes' is overwritten after the first usage and possibly leaked
if any code in the first set of parsing goes to error.
Found by Coverity.
Signed-off-by: John Ferlan <jferlan@redhat.com>
In GCC 7 there is a new warning triggered when a switch
case has a conditional statement (eg if ... else...) and
some of the code paths fallthrough to the next switch
statement. e.g.
conf/domain_conf.c: In function 'virDomainChrEquals':
conf/domain_conf.c:14926:12: error: this statement may fall through [-Werror=implicit-fallthrough=]
if (src->targetTypeAttr != tgt->targetTypeAttr)
^
conf/domain_conf.c:14928:5: note: here
case VIR_DOMAIN_CHR_DEVICE_TYPE_CONSOLE:
^~~~
conf/domain_conf.c: In function 'virDomainChrDefFormat':
conf/domain_conf.c:22143:12: error: this statement may fall through [-Werror=implicit-fallthrough=]
if (def->targetTypeAttr) {
^
conf/domain_conf.c:22151:5: note: here
default:
^~~~~~~
GCC introduced a __attribute__((fallthrough)) to let you
indicate that this is intentionale behaviour rather than
a bug.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When switching over the values in the virDomainControllerModelPCI
enumeration, make sure the proper cast is in place so that the
compiler can warn us when the coverage is not exaustive.
For the same reason, remove the 'default' case from one of the
existing switch statements.
The switch in virDomainPCIControllerModelToConnectType()
had some code that, while techically part of the
_PCIE_SWITCH_DOWNSTREAM_PORT case, was in fact dead due
to the early return.
Get rid of the dead code, and fix the inaccurate function
description while at it.
Our virSomeEnumTypeFromString() functions return either the value
of item from the enum or -1 on error. Usually however the value 0
means 'this value is not set in the domain XML, use some sensible
default'. Therefore, we don't accept corresponding string in
domain XML, for instance:
<memoryBacking>
<source mode="none"/>
<access mode="default"/>
<allocation mode="none"/>
</memoryBacking>
should be rejected as invalid XML.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Rather than the inlined VIR_FREE's, use a cleanup: label... Fixes an
issue introduced by 03346def where @name was free'd before usage in
a virAsprintf to format scsi_host_name.
The niothreadids struct field is size_t, so must use %zu not %lu
with printf. While they're identical on some platforms, on others
they are different, causing warnings
conf/domain_conf.c: In function 'virDomainDefCheckABIStabilityFlags':
conf/domain_conf.c:19575:26: error: format '%lu' expects argument of type 'long unsigned int', but argument 7 has type 'size_t {aka unsigned int}' [-Werror=format=]
_("Target domain iothreads count %lu does not "
^
conf/domain_conf.c: In function 'virDomainDefFormatInternal':
conf/domain_conf.c:23915:46: error: format '%lu' expects argument of type 'long unsigned int', but argument 3 has type 'size_t {aka unsigned int}' [-Werror=format=]
virBufferAsprintf(buf, "<iothreads>%lu</iothreads>\n",
^
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Add a test that allows providing the parent fabric_wwn in the input XML
in order to create the vHBA.
This also fixes a mixed setting of the fabric_wwn field from the read
test driver XML strings.
Rework the code to perform the various searches by parent, parent_wwnn/
parent_wwpn, parent_fabric_wwn, or vport capable in order to return the
'parent_host' number that is vHBA capable.
The former virNodeDeviceGetParentHost is renamed to add the ByParent
on it fixes an issue where if no parent was supplied in the XML to
create the vHBA, then virNodeDeviceFindByName was called with a NULL
second parameter which had bad results.
The reworked code will make the various calls to fetch the NPIV host
by the passed parameter options or if none are provided find a vport
capable NPIV HBA to perform the create. If the call is from the delete
path, then this option won't be allowed.
Each of virNodeDeviceGetParentHostBy* functions is now static, so
remove them external definitions.
A secondary benefit of this is the test_driver now can make use of
the new API to add some new tests to test the various creation options.
Create a virscsihost.c and place the functions there. That removes the
last #ifdef __linux__ from virutil.c.
Take the opporunity to also change the function names and in one case
the parameters slightly
Use the new virNodeDeviceGetParentName instead. Modify the callers to
build the node device scsi_host# name string in order to call the new
function so that proper lookup occurs.
Rather than have them mixed in with the virutil apis, create a separate
virvhba.c module and move the vHBA related calls into there. Soon there
will be more added.
Also modify the names of the functions and some arguments to be more
indicative of what is really happening. Adjust the callers respectively.
While I was changing fchosttest, rather than the non-descriptive names
test1...test6, rename them to match what the test is doing.
Build fails with:
conf/node_device_conf.c:825:62: error: comparison of unsigned enum expression < 0 is always false [-Werror,-Wtautological-compare]
if ((data->drm.type = virNodeDevDRMTypeFromString(type)) < 0) {
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~
conf/node_device_conf.c:1801:59: error: comparison of unsigned enum expression < 0 is always false [-Werror,-Wtautological-compare]
if ((type = virNodeDevDevnodeTypeFromString(tmp)) < 0) {
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ^ ~
2 errors generated.
Fix by using intermediate variable to store the result similarly
to how it's done for other FromString* calls.
After 7f1bdec5fa our nodedev driver is capable of
determining DRM devices (DRM stands for Direct Render Manager not
Digital rights management). There is still one bit missing
though: virConnectListAllNodeDevices() is capable of listing
either all devices or just those with specified capability. Well,
DRM capability is missing there.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Add a new attribute 'rendernode' to <gl> spice element.
Give it to QEMU if qemu supports it (queued for 2.9).
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Add a new 'drm' capability for Direct Rendering Manager (DRM) devices,
providing device type information.
Teach the udev backend to populate those devices.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Add new <devnode> top-level <device> element, that list the associated
/dev files. Distinguish the main /dev name from symlinks with a 'type'
attribute of value 'dev' or 'symlink'.
Update a test to check XML schema, and actually add it to the test list
since it was missing.
Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com>
When the 'parent' was added to the virNodeDevicePtr structure
by commit id 'e8a4ea75a' the 'parent' field was not properly filled
in when a virGetNodeDevice call was made within driver/config code.
Only the device name was ever filled in. Fetching the parent required
a second trip via virNodeDeviceGetParent into the node device lookup
code was required in order to retrieve the specific parent field (and
still the parent field was never filled in although it was free'd).
Since we have the data when we initially call virGetNodeDevice from
within driver/node_config code - let's just fill in the parent field
as well for anyone that wants it without requiring another trip into
the node_device lookup just to get the parent.
This will allow API's such as virConnectListAllNodeDevices,
virNodeDeviceLookupByName, and virNodeDeviceLookupSCSIHostByWWN
to retrieve both name and parent in the returned virNodeDevicePtr.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Move the range check introduced by commit 2650d5e into
virDomainUSBAddressFindPort. That way both virDomainUSBAddressRelease
and virDomainUSBAddressSetAddHub can benefit from it.
Reported-by: Michal Privoznik <mprivozn@redhat.com>
If virDomainChrSourceDefNew(xmlopt) fails, it will lead to free()ing
the uninitialized pointer bus. The fix for this is to initialize bus
with NULL.
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Boris Fiuczynski <fiuczy@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
This part introduces new xml elements for file based
memorybacking support and their parsing.
(It allows vhost-user to be used without hugepages.)
New xml elements:
<memoryBacking>
<source type="file|anonymous"/>
<access mode="shared|private"/>
<allocation mode="immediate|ondemand"/>
</memoryBacking>
Rename to avoid duplicate code. Because virDomainMemoryAccess will be
used in memorybacking for setting default behaviour.
NOTE: The enum cannot be moved to qemu/domain_conf because of headers
dependency
Example:
<network>
...
<mtu size='9000'/>
...
If mtu is unset, it's assumed that we want the default for whatever is
the underlying transport (usually this is 1500).
This setting isn't yet wired in, so it will have no effect.
This partially resolves: https://bugzilla.redhat.com/1224348
The issue is that if this graphics definition is provided:
<graphics type='vnc' port='0'/>
it's parsed as:
<graphics type='vnc' autoport='no'>
<listen type='address'/>
</graphics>
but if the resulting XML is parsed again the output is:
<graphics type='vnc' port='-1' autoport='yes'>
<listen type='address'/>
</graphics>
and this should not happen. The XML have to always remain the same
after it was already parsed by libvirt.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1383039
Signed-off-by: Pavel Hrdina <phrdina@redhat.com>
Added general definitions for vstorage pool backend including
the build options to add --with-storage-vstorage checking.
In order to use vstorage as a backend for a storage pool
vstorage tools (vstorage and vstorage-mount) need to be installed.
Signed-off-by: Olga Krishtal <okrishtal@virtuozzo.com>
So far we allow to set MTU for libvirt networks. However, not all
domain interfaces have to be plugged into a libvirt network and
even if they are, they might want to have a different MTU (e.g.
for testing purposes).
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
We use @ret to hold the actual return value of the function we
are currently in. To hold a return value of a function called we
use different variables: @rv, @rc, etc. Honour this naming
scheme in virDomainNetDefParseXML too.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
==24748== 12 bytes in 2 blocks are definitely lost in loss record 25 of 84
==24748== at 0x4C2BF80: malloc (vg_replace_malloc.c:296)
==24748== by 0x1A1E1E78: xmlStrndup (in /usr/lib64/libxml2.so.2.9.4)
==24748== by 0x18D0495F: virXMLPropString (virxml.c:506)
==24748== by 0x18D1FB3E: virDomainHostdevSubsysSCSIVHostDefParseXML (domain_conf.c:6280)
==24748== by 0x18D20350: virDomainHostdevDefParseXMLSubsys (domain_conf.c:6450)
==24748== by 0x18D34E7D: virDomainHostdevDefParseXML (domain_conf.c:13218)
==24748== by 0x18D42598: virDomainDefParseXML (domain_conf.c:17745)
==24748== by 0x18D440A9: virDomainDefParseNode (domain_conf.c:18236)
==24748== by 0x18D43EFA: virDomainDefParse (domain_conf.c:18180)
==24748== by 0x18D43FA0: virDomainDefParseFile (domain_conf.c:18206)
==24748== by 0x44EDA1: testCompareDomXML2XMLFiles (testutils.c:1140)
==24748== by 0x4365F8: testXML2XMLActive (qemuxml2xmltest.c:59)
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Surprisingly there was a virDomainPCIAddressReleaseAddr() function
already, but it was completely unused. Since we don't reserve entire
slots at once any more, there is no need to release entire slots
either, so we just replace the single call to
virDomainPCIAddressReleaseSlot() with a call to
virDomainPCIAddressReleaseAddr() and remove the now unused function.
The keen observer may be concerned that ...Addr() doesn't call
virDomainPCIAddressValidate(), as ...Slot() did. But really the
validation was pointless anyway - if the device hadn't been suitable
to be connected at that address, it would have failed validation
before every being reserved in the first place, so by definition it
will pass validation when it is being unplugged. (And anyway, even if
something "bad" happened and we managed to have a device incorrectly
at the given address, we would still want to be able to free it up for
use by a device that *did* validate properly).
This is in preparation for renaming virDomainPCIAddressReserveSlot()
to virDomainPCIAddressReserveAddr(), which is a better description of
what it does.
Since we don't actually reserve an entire slot at a time anymore, the
name of this function is just confusing, and it's almost identical in
operation to virDomainPCIAddressReserveNextAddr() anyway, so remove
the *Slot() function and replace calls to it with calls to *Addr(...,
-1).
With the advent of VIR_PCI_CONNECT_AGGREGATE_SLOT, the new name is
more appropriate, since the address returned may be another address
on the same slot as last time, not necessarily a new slot.
fromConfig should be true if the caller wants
virDomainPCIAddressValidate() to loosen restrictions on its
interpretation of the pciConnectFlags. In particular, either
PCI_DEVICE or PCIE_DEVICE will be counted as equivalent to both, and
HOTPLUG will be ignored. In a few cases where libvirt was manually
overriding automatic address assignment, it was setting fromConfig to
false when validating the hardcoded manual override. This patch
changes those to fromConfig=true as a preemptive strike against any
future bugs that might otherwise surface.
Although setting virDomainPCIAddressReserveAddr()'s fromConfig=true is
correct when a PCI addres is coming from a domain's config, the *true*
purpose of the fromConfig argument is to lower restrictions on what
kind of device can plug into what kind of controller - if fromConfig
is true, then a PCIE_DEVICE can plug into a slot that is marked as
only compatible with PCI_DEVICE (and vice versa), and the HOTPLUG flag
is ignored.
For a long time there have been several calls to
virDomainPCIAddressReserveAddr() that have fromConfig incorrectly set
to false - it's correct that the addresses aren't coming from user
config, but they are coming from hardcoded exceptions in libvirt that
should, if anything, pay *even less* attention to following the
pciConnectFlags (under the assumption that the libvirt programmer knew
what they were doing).
See commit b87703cf7 for an example of an actual bug caused by the
incorrect setting of the "fromConfig" argument to
virDomainPCIAddressReserveAddr(). Although they haven't resulted in
any reported bugs, this patch corrects all the other incorrect
settings of fromConfig in calls to virDomainPCIAddressReserveAddr().
Set the VIR_PCI_CONNECT_AGGREGATE_SLOT flag for pcie-root-ports so
that they will be assigned to all the functions on a slot.
Some qemu test case outputs had to be adjusted due to the
pcie-root-ports now being put on multiple functions.
If a PCI device has VIR_PCI_CONNECT_AGGREGATE_SLOT set in its
pciConnectFlags, then during address assignment we allow multiple
instances of this type of device to be auto-assigned to multiple
functions on the same device. A slot is used for aggregating multiple
devices only if the first device assigned to that slot had
VIR_PCI_CONNECT_AGGREGATE_SLOT set. but any device types that have
AGGREGATE_SLOT set might be mix/matched on the same slot.
(NB: libvirt should never set the AGGREGATE_SLOT flag for a device
type that might need to be hotplugged. Currently it is only planned
for pcie-root-port and possibly other PCI controller types, and none
of those are hotpluggable anyway)
There aren't yet any devices that use this flag. That will be in a
later patch.
This utility function iterates through all devices looking for any
with a PCI address that has function != 0 (which implies that multiple
functions are in use on that slot), then uses an inner iterator to
find the device that's on function 0 of that same slot and sets the
"multi" in its virDomainDeviceInfo (as long as it hasn't already been
set explicitly by someone who presumably has better information than
we do).
It isn't yet called from anywhere, so will have no functional effect.
There is a very slight time advantage to beginning the search for the
next unused PCI address at the slot *after* the previous find (which
is now used), but if we do that, we will miss allocating the other
functions of the same slot (when we implement a
VIR_PCI_CONNECT_AGGREGATE_SLOT flag to support that).
virDomainPCIAddressGetNextSlot() starts searching from the last
allocated address and goes to the end of all the buses, then goes back
to the first bus and searches from there up to the starting point (in
case any address has been freed since the last time an address was
allocated. The loops for these two are almost, but not exactly, the
same, so they have remained as separate loops with the same code
inside the loop. To lessen maintenance headaches, the identical code
has been moved out into the function
virDomainPCIAddressFindUnusedFunctionOnBus(), which is called in place
of the loop contents.
setting reserveEntireSlot really accomplishes nothing - instead of
going to the trouble of computing the value for reserveEntireSlot and
then possibly setting *all* functions of the slot as in-use, we can
just set the in-use bit only for the specific function being used by a
device. Later we will know from the context (the PCI connect flags,
and whether we are reserving a specific address or asking for "the
next available") whether or not it is okay to allocate other functions
on the same slot.
Although it's not used yet, we allow specifying "-1" for the function
number when looking for the "next available slot" - this is going to
end up meaning "return the lowest available function in the slot, but
since we currently only provide a function from an otherwise unused
slot, "-1" ends up meaning "0".
When keeping track of which functions of which slots are allocated, we
will need to have more information than just the current bitmap with a
bit for each function that is currently stored for each slot in a
virDomainPCIAddressBus. To prepare for adding more per-slot info, this
patch changes "uint8_t slots" into "virDomainPCIAddressSlot slot", which
currently has a single member named "functions" that serves the same
purpose previously served directly by "slots".
The public virSecret object has a single "usage_id" field
but the virSecretDef object has a different 'char *' field
for each usage type, but the code all assumes every usage
type has a corresponding single string. Get rid of the
pointless union in virSecretDef and just use "usage_id"
everywhere. This doesn't impact public XML format, only
the internal handling.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
When changing the metadata via virDomainSetMetadata, we now
emit an event to notify the app of changes. This is useful
when co-ordinating different applications read/write of
custom metadata.
Signed-off-by: Daniel P. Berrange <berrange@redhat.com>
Add new fields to the fchost structure to allow creation of a vHBA via
the storage pool when a parent_wwnn/parent_wwpn or parent_fabric_wwn is
supplied in the storage pool XML.
https://bugzilla.redhat.com/show_bug.cgi?id=1349696
When creating a vHBA, the process is to feed XML to nodeDeviceCreateXML
that lists the <parent> scsi_hostX to use to create the vHBA. However,
between reboots, it's possible that the <parent> changes its scsi_hostX
to scsi_hostY and saved XML to perform the creation will either fail or
create a vHBA using the wrong parent.
So add the ability to provide "wwnn" and "wwpn" or "fabric_wwn" to
the <parent> instead of a name of the scsi_hostN that is the parent.
The allowed XML will thus be:
<parent>scsi_host3</parent> (current)
or
<parent wwnn='$WWNN' wwpn='$WWPN'/>
or
<parent fabric_wwn='$WWNN'/>
Using the wwnn/wwpn or fabric_wwn ensures the same 'scsi_hostN' is
selected between hardware reconfigs or host reboots. The fabric_wwn
Using the wwnn/wwpn pair will provide the most specific search option,
while fabric_wwn will at least ensure usage of the same SAN, but maybe
not the same scsi_hostN.
This patch will add the new fields to the nodedev.rng for input purposes
only since the input XML is essentially thrown away, no need to Format
the values since they'd already be printed as part of the scsi_host
data block.
New API virNodeDeviceGetParentHostByWWNs will take the parent "wwnn" and
"wwpn" in order to search the list of devices for matching capability
data fields wwnn and wwpn.
New API virNodeDeviceGetParentHostByFabricWWN will take the parent "fabric_wwn"
in order to search the list of devices for matching capability data field
fabric_wwn.
If a <parent> is not supplied in the XML used to create a non-persistent
vHBA, then instead of failing, let's try to find a "vports" capable node
device and use that.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Extract out code from virNodeDeviceGetParentHost into helpers - it's
going to be reused in upcoming patches to search on more fields
Create virNodeDeviceFindVPORTCapDef in order to return a virNodeDevCapsDefPtr
of the VPORT_OPS and virNodeDeviceFindFCParentHost to use the function and
generate an error message if the device doesn't have the capability.
Also clean up the processing in virNodeDeviceGetParentHost to remove
need for goto's.
Signed-off-by: John Ferlan <jferlan@redhat.com>
Although the virStorageBackendUpdateVolTargetInfo will update the
target.physical value, there is no way to provide that information
via the virStorageGetVolInfo API since it only returns the capacity
and allocation of a volume. So as described in commit id '0282ca45',
it should be possible to generate an output only <physical> value
for that purpose.
This patch generates the <physical> value in the volume XML output
for the sole purpose of being able to view/see the value to allow
someone to parse the XML in order to obtain the value.
Update the documentation to describe the output only nature.
Signed-off-by: John Ferlan <jferlan@redhat.com>
This patch detects a misconfiguration between the disk bus type and disk
address type for controller based disk buses (SATA, SCSI, FDC and
IDE). The addresses of these bus types are all managed in common code so
it's possible to decide in common code whether the disk address and bus
type are compatible or not.
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Reviewed-by: Bjoern Walk <bwalk@linux.vnet.ibm.com>
This function will be needed by the QEMU driver in an upcoming
patch. Additionally, removed a useless empty line.
Signed-off-by: Marc Hartmayer <mhartmay@linux.vnet.ibm.com>
Similarly to localOnly DNS domain, localPtr attribute can be used to
tell the DNS server not to forward reverse lookups for unknown IPs which
belong to the virtual network.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
Iterating over all child nodes when we only support one instance of each
child is pretty weird. And it would even cause memory leaks if more
than one <tftp> element was specified.
Signed-off-by: Jiri Denemark <jdenemar@redhat.com>
When save/migrate a domain and we autogenerated a port, then if we
print the inactive domain config, write out a -1 for the socket value;
otherwise, it's possible that the subsequent start will fail if the
autogenerated websocket used conflicts with an existing running config
that also used autogenerated websockets.
Examples:
== A. Can not restore domain with autoconfigured websocket.
domain 1 and 2 have autoconfigured websocket.
1. domain 1 is started then, saved
2. domain 2 is started
3. domain 1 restoration is failed:
error: internal error: qemu unexpectedly closed the monitor: 2016-11-21T10:23:11.356687Z
qemu-kvm: -vnc 0.0.0.0:2,websocket=5700: Failed to start VNC server on `(null)':
Failed to bind socket: Address already in use
== B. Can not migrate domain with autoconfigured websocket.
domain 1 on host A, domain 2 on host B, both have autoconfigured websocket
1. domain 1 started, domain 2 started
2. domain 1 migration to host B is failed with the above error.
So far this function takes virDomainObjPtr which:
1) is an overkill,
2) might be not available in all the places we will use it.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Since the great rework of how we store vcpu- and iothread-related
data, we have overly complex part of code that is trying to format the
scheduler tuning data in as less lines as possible by grouping
settings for multiple threads. That was designed as an input syntax
sugar for users, but we don't need to also use that when formatting
the XML. Switching to simple enumeration makes the code nicer,
shorter and more welcoming to future changes.
Signed-off-by: Martin Kletzander <mkletzan@redhat.com>
Now that we have a module that's able to track
<domain, mac addres list> pairs, hook it up into
our network driver.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
There are couple of places where we have a string and want to
save it to a file. Atomically. In all those places we use
virFileRewrite() but also implement the very same callback which
takes the string and write it into temp file. This makes no
sense. Unify the callbacks and move them to one place.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Modify _virDomainBlockIoTuneInfo and rng schema to support the group_name
option for iotune throttling. Document the new value.
Signed-off-by: John Ferlan <jferlan@redhat.com>
