Due to a rather unfortunate misunderstanding, we were parsing the list
of defined devices from mdevctl incorrectly. Since my primary
development machine only has a single device capable of mdevs, I
apparently neglected to test multiple parent devices and made some
assumptions based on reading the mdevctl code. These assumptions turned
out to be incorrect, so the parsing failed when devices from more than
one parent device were returned.
The details: mdevctl returns an array of objects representing the
defined devices. But instead of an array of multiple objects (with each
object representing a parent device), the array always contains only a
single object. That object has a separate property for each parent
device.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@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 9d4cd1d1cd.
Revert "nodedev: support auto-start property for mdevs"
This reverts commit 42a5585499.
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>
This adds a new element to the mdev capabilities xml schema that
represents the start policy for a defined mediated device. The actual
auto-start functionality is handled behind the scenes by mdevctl, but it
wasn't yet hooked up in libvirt.
Signed-off-by: Boris Fiuczynski <fiuczy@linux.ibm.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Now that we have a generic mdevctl command generator, we can unify the
test infrastructure as well.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
rather than using short opentions (e.g. "-p 0000:00:02.0"), use long
options everywhere (e.g. "--parent=0000:00:02.0")
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
"start" in libvirt means - "take this object and create an
instance out of it"
"create" in libvirt most of the time means - "take and XML description,
make an object out of it and use it to create an instance"
This gets confusing with mdevctl which uses "start" for both. So, this
patch proposes to use virMdevctlStart in cases where from libvirt's POV
we're starting a defined device (unlike mdevctl). Similarly, use
virMdevctlCreate in scenarios where XML description is passed to
libvirt and a transient device is supposed to be created.
Signed-off-by: Erik Skultety <eskultet@redhat.com>
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Rather than specifying a UUID string to some test macros, just pass a
filename to an xml definition. This helps work toward unifying the test
macros and making it more maintainable.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Laine Stump <laine@redhat.com>
Remove `nodedevCompareToFile` which was stripping the path to mdevctl
since it's no longer needed if we use the new features of
virCommandSetDryRun.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Pavel Hrdina <phrdina@redhat.com>
Use the new <uuid> element in the mdev caps to define and start devices
with a specific UUID.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
It will be useful to be able to specify a particular UUID for a mediated
device when defining the node device. To accomodate that, allow this to
be specified in the xml schema. This patch also parses and formats that
value to the xml, but does not yet use it.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This new API function provides a way to start a persistently-defined
mediate device that was defined by virNodeDeviceDefineXML() (or one that
was defined externally via mdevctl)
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This interface allows you to undefine a persistently defined (but
inactive) mediated devices. It is implemented via 'mdevctl'
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Abstract out the function used to generate the commandline for 'mdevctl
start' since they take the same arguments. Add tests to ensure that
we're generating the command properly.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This adds an internal API to query for persistent mediated devices
that are defined by mdevctl. Upcoming commits will make use of this
information.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
This function will parse the list of mediated devices that are returned
by mdevctl and convert it into our internal node device representation.
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Test that we run 'mdevctl' with the proper arguments when we destroy
mediated devices with virNodeDeviceDestroy()
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
Test that we run 'mdevctl' with the proper arguments when creating new
mediated devices with virNodeDeviceCreateXML().
Signed-off-by: Jonathon Jongsma <jjongsma@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Reviewed-by: Michal Privoznik <mprivozn@redhat.com>
