xenbus is virtual controller (akin to virtio controllers) for Xen
paravirtual devices. Although all Xen VMs have a xenbus, it has
never been modeled in libvirt, or in Xen native VM config format
for that matter.
Recently there have been requests to support Xen's max_grant_frames
setting in libvirt. max_grant_frames is best modeled as an attribute
of xenbus. It describes the maximum IO buffer space (or DMA space)
available in xenbus for use by connected paravirtual devices. This
patch introduces a new xenbus controller type that includes a
maxGrantFrames attribute.
Signed-off-by: Jim Fehlig <jfehlig@suse.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
This is going to extend virDomainLoader enum. The reason is that
once loader path is NULL its type makes no sense. However, since
value of zero corresponds to VIR_DOMAIN_LOADER_TYPE_ROM the
following XML would be produced:
<os>
<loader type='rom'/>
...
</os>
To solve this, introduce VIR_DOMAIN_LOADER_TYPE_NONE which would
correspond to value of zero and then use post parse callback to
set the default loader type to 'rom' if needed.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Laszlo Ersek <lersek@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
In these cases the check that is removed has been done a few
lines above already (as can even be seen in the context). Drop
them.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: Erik Skultety <eskultet@redhat.com>
Add <controller type='scsi' model handling for virtio transitional
devices. Ex:
<controller type='scsi' model='virtio-transitional'/>
* "virtio-transitional" maps to qemu "virtio-scsi-pci-transitional"
* "virtio-non-transitional" maps to qemu "virtio-scsi-non-transitional"
The naming here doesn't match the pre-existing model=virtio-scsi.
The prescence of '-scsi' there seems kind of redundant as we have
type='scsi' already, so I decided to follow the pattern of other
patches and use virtio-transitional etc.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Add new <disk> model values for virtio transitional devices. When
combined with bus='virtio':
* "virtio-transitional" maps to qemu "virtio-blk-pci-transitional"
* "virtio-non-transitional" maps to qemu "virtio-blk-pci-non-transitional"
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Introduced by d86c876a66e3.
There is no real need to have "user-" prefix for chardev.
Signed-off-by: Michal Privoznik <mprivozn@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
QEMU accidentally exposed the id of -drive (or same value as disk
serial, if provided) in one of the identifiers visible from the guest.
To avoid regression in case when -blockdev will be used we need to
always specify it ourselves.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
For SCSI, IDE, and AHCI cdroms the appropriate device types which select
the correct media are used. In qemu there's one other code path that
looks at -drive media=cdrom in the XEN pv code. Thankfully we don't
support it with qemu (see qemuBuildDiskDeviceStr). All other devices
ignore it as the comment states, thus we can drop that code.
The test fallout is expectedly only in the test added for uncommon cdrom
types.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Cast disk->bus to proper type and add missing values to the enum so it's
more obvious what types are supported.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The split of ide-disk into the two separate devices was introduced by
qemu commit 1f56e32a7f4b3 released in qemu v0.15.
Note that when compared to the previous commit which made sure that no
disk related tests were touched, in this case it's not as careful.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
The split of scsi-disk into the two separate devices was introduced by
qemu commit b443ae67 released in qemu v0.15.
All changes to test files are not really related to disk testing thanks
to previous refactors.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
In commit f80eae8c2ae I was too agresive in removing properties of
-drive for empty drives. It turns out that qemu actually persists the
state of 'readonly' and the throttling information even for the empty
drive.
Removing 'readonly' thus made qemu open any subsequent images added via
the 'change' command as RW which was forbidden by selinux thanks to the
restrictive sVirt label for readonly media.
Fix this by formating the property again and bump the tests and leave a
note detailing why the rest of the properties needs to be skipped.
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>), and we have a mix of semicolon and
non-semicolon usage through the code. Let's standardize on using
a semicolon for VIR_ENUM_IMPL calls.
Move the verify() statement to the end of the macro and drop
the semicolon, so the compiler will require callers to add a
semicolon.
While we are touching these call sites, standardize on putting
the closing parenth on its own line, as discussed here:
https://www.redhat.com/archives/libvir-list/2019-January/msg00750.html
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Missing semicolon at the end of macros can confuse some analyzers
(like cppcheck <filename>), and we have a mix of semicolon and
non-semicolon usage through the code. Let's standardize on using
a semicolon for VIR_ENUM_DECL calls.
Drop the semicolon from the final statement of the macro, so
the compiler will require callers to add a semicolon.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The virDomainDeviceInfo parameter is a large struct so it is preferrable
to pass it by reference instead of by value.
Reviewed-by: John Ferlan <jferlan@redhat.com>
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Use qemuBuildControllersCommandLine since it builds the command line
for (nearly) all controllers, not just one.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Now that the inner loop does not require any other variables,
it can be easily separated. Apart from reducing the indentation
level this will allow it to be called from different code paths.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Now that it's no longer needed, remove the argument.
This removes the last helper variable in
qemuBuildControllerDevCommandLine.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
qemuBuildLegacyUSBControllerCommandLine is the only place where
we need to count the USB controllers.
Count them again instead of keeping track in a variable passed to
qemuBuildControllerDevStr.
This removes the need for another variable in the loop in
qemuBuildControllerDevCommandLine.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Count them in qemuBuildLegacyUSBControllerCommandLine to remove
yet another variable accessed from the loop in
qemuBuildControllerDevCommandLine.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
This removes the need to mark it in the 'usbcontroller' variable.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Move out the code formatting "-usb" on the QEMU command line.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Cole Robinson <crobinso@redhat.com>
Switch qemuBuildVirtioDevStr to use virDomainDeviceSetData: callers
pass in the virDomainDeviceType and the void * DefPtr. This will
save us from having to repeatedly extend the function argument
list in subsequent patches.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Current code essentially duplicates the same logic, but misses
some cases (like vhost-vsock-device).
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The vhost-scsi device string should depend on the requested
address type, not strictly on the emulated arch. This is the
same logic used by qemuBuildVirtioDevStr, and this particular
path is already tested in the hostdev-scsi-vhost-scsi-ccw tests
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Move the rng->model == VIRTIO check to parse time. This also
allows us to remove similar checks throughout the qemu driver
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
If we validate that memballoon is NONE|VIRTIO at parse time,
we can drop similar checks elsewhere in the qemu driver
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
This will be extended in the future, so let's simplify things by
centralizing the checks.
Reviewed-by: Andrea Bolognani <abologna@redhat.com>
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Use the password stored in the secret driver under
the uuid specified by the vnc_tls_x509_secret_uuid
option in qemu.conf.
https://bugzilla.redhat.com/show_bug.cgi?id=1602418
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
Instead of hardcoding the TLS creds alias in
qemuBuildGraphicsVNCCommandLine, store it
in the domain private data.
Given that we only support one VNC graphics
and thus have only one alias per-domain,
this is overengineered, but it will allow us
to prepare the secret upfront when we start
supporting encrypted server TLS keys.
Note that the alias is not formatted anywhere
since we won't need to access it after domain
startup.
Signed-off-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
If a -drive has no image, using image properties makes qemu whine that
they should not be used.
This patch stops formating cache/readonly/... for empty drives
for the pre-blockdev syntax. Unfortunately those parameters can't be
added later when inserting media, but on the other hand qemu will start
with an empty drive.
Since we already were able to start a VM with such config previously due
to qemu ignoring them I've opted just to skip formatting them.
Additionally with -blockdev support it will work as expected as the
image properties will be formatted when adding the image itself which is
not possible without it.
Resolves: https://bugzilla.redhat.com/show_bug.cgi?id=1651457
Signed-off-by: Peter Krempa <pkrempa@redhat.com>
Reviewed-by: Ján Tomko <jtomko@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
According to the result parsing from xml, add the unarmed property
into QEMU command line:
-device nvdimm,...[,unarmed=on]
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
According to the result parsing from xml, add pmem property
into QEMU command line:
-object memory-backend-file,...[,pmem=on]
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
According to the result parsing from xml, add align property
into QEMU command line:
-object memory-backend-file,...[,align=xxx]
Signed-off-by: Luyao Zhong <luyao.zhong@intel.com>
Reviewed-by: John Ferlan <jferlan@redhat.com>
