This recommendation came from an internal discussion. The cases are
* For block storage. This means guest requests are passed through
to the host device, which seems a more reasonable default than
ignoring them
* For sparse disk images we will create. discard=unmap helps preserve
the sparseness of the disk image. If a user requests non-sparse, they
are likely more concerned with performance than saving disk space,
so we leave the default as is. We limit this to disk images we will
create, since that's the easiest case to check, and it's less clear
if we should change the behavior here for an arbitrary existing
disk image.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
This is from Gerd's suggestions here:
https://www.kraxel.org/blog/2019/09/display-devices-in-qemu/
When the guest supports it, we should use virtio. qxl is on the way
out, and the benefits are marginal and add a security and maintenance
burden.
While here, check domcaps that qxl or virtio are actually available.
Modern qemu has device modules, so device support may not be installed.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
* Make it clear in code and UI that this is x86 only. Other arches
either require UEFI (aarch64) or don't support it
* Drop the internal 'bios' values since we don't handle them and may
not want them anyways, since when win11 support lands we will need
to explicitly throw an error if the user tries to force bios
* Add UI tests
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Possible values are BIOS (default) and UEFI.
The firmware used is determined by libvirt unless a specific firmware is
selected from the Customize dialog.
See https://bugzilla.redhat.com/show_bug.cgi?id=1997882
It creates a lot of churn.
Adjust phantom grid rows + columns while we are at it, not sure why
those counts are suddenly wrong
Signed-off-by: Cole Robinson <crobinso@redhat.com>
This reverts commit aaabb44ac7.
I figured out how to trigger this: it's when scaling is enabled.
To maintain VM aspect ratio, we have to constrain the size of the
viewer widget. When the widget is smaller than the VM window, the
viewport widget is visible. This change made the viewport the default
theme color, rather than black.
Problem is, in the non-scaling case, we don't shrink the viewer
widget but let it expand to fill the whole area. This is necessary
to get the 'Autoresize VM with window' option to work, but is also
simpler in the cdoe. The viewport widget is not visible, and gtk-vnc
and spice-gtk paint the non VM owned areas as black. AFAICT that's not
configurable in any way.
So after this change we have differing behavior for scaled and
non-scaled cases, which is confusing and visually kinda comes off as
a bug.
So this reverts back to the old behavior and explains all this in
a comment.
setuptools still doesn't natively provide some infrastructure we
need, but newer versions will keep 'import distutils' working until
those issues are addressed. I think we need to reorder imports to take
advantage of it though. It silences some deprecation warnings at
least
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Let users choose libvirt's os.firmware=efi setting in the UI, putting
it about the firmware path list, since it's the preferred default
these days.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
<os firmware='efi'> is the libvirt official way to do what we
historically implement with `--boot uefi`, and UEFI setup in
virt-manager.
Let's prefer libvirt's official method if the support is advertised
in domcapabilities.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
This replaces the pattern:
Guest.set_uefi_path(Guest.get_uefi_path())
With a single entrypoint
Guest.enable_uefi()
to immediately change the guest config to use UEFI, using our
default logic.
This will make it easier to change that logic in the future, like
using <os firmware='efi'> instead of hardcoded paths
Signed-off-by: Cole Robinson <crobinso@redhat.com>
I removed Portgroup UI in 4c3c53f773 release 3.0.0, but there's been
a steady stream of requests to bring it back. It seems it's commonly
used with some certain openvswitch config.
Maint burden isn't too bad. Let's bring it back
Fixes: https://github.com/virt-manager/virt-manager/issues/169
Signed-off-by: Cole Robinson <crobinso@redhat.com>
We were not correctly accounting for the internal representation of
some fields, and just trying to a string comparison. We need to be
a bit smarter than that
Fixes: https://github.com/virt-manager/virt-manager/issues/356
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Strip back the logic to:
* Only try to toggle source_type=memfd and access_mode=shared
* Disable the field if guest has any <numa> config
* Disable the field if domcaps does not report virtiofs and memfd
This is the simplest future proof case, though it will exclude some
legit guest configs and some libvirt+qemu back compat.
My feeling is the <numa> stuff in particular is pretty advanced, so if
users have it configured they can toggle shared memory via the XML
without too much trouble.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The virtiofs in domcapabilities is used as a proxy to tell us whether
libvirt is new enough to allow bare memory access mode=shared', So We
enable/disable this checkbox according to it.
When we configure shared memory access, If the 'memfd' is available in
domcaps, We configure VM to use it as memory backend because it doesn't
need addtional host setup for vhost-user devices, Otherwise use 'file'
as backend.
If all of numa nodes explicitly defined memAccess=shared, We mark this
checkbox as checked even if virtiofs isn't exposed in domcapabilities.
In this case:
- It doesn't matter what the value of access mode of memoryBacking is
because access mode of memoryBacking will be overridden per numa node
by memAccess attribute.
- Although the checkbox is disabled, the checked checkbox presents actual
status about shared memory access to users.
Signed-off-by: Lin Ma <lma@suse.com>
Linux memfd memory backend doesn't require any host setup, We prefer to
use it as the simplest memory XML adjustments to make virtiofs works.
Signed-off-by: Lin Ma <lma@suse.com>
Check whether virtiofs is exposed in domcapabilities, We can use it as a
proxy for 'libvirt is new enough to allow bare memory access mode=shared'
as well.
Signed-off-by: Lin Ma <lma@suse.com>
Both these windows versions are now longer supported, and UEFI isn't
the default, so I don't think this hack is much needed anymore
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The bare metal world is moving to a situation where UEFI is going to be
the only supported firmware and there will be a strong expectation for
TPM and SecureBoot support.
With this in mind, if we're enabling UEFI on a VM, it makes sense to
also provide a TPM alongside it.
Since this requires swtpm to be installed we can't do this
unconditionally. The forthcoming libvirt release expands the domain
capabilities to report whether TPMs are supported, so we check that.
The user can disable the default TPM by requesting --tpm none
https://github.com/virt-manager/virt-manager/issues/310
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
This address string decomposing is strictly and virt-* cli feature.
Move it to cli.py to make that explicit
Signed-off-by: Cole Robinson <crobinso@redhat.com>
Apparently nodedev drm XML can link to a parent device that we can't
look up?
We shouldn't be trying to do the full address string compare anyways,
so just try the name lookup, which would improve the error here too
Fixes: #328
Signed-off-by: Cole Robinson <crobinso@redhat.com>
https://listman.redhat.com/archives/virt-tools-list/2022-January/msg00012.html
On xen, a guest reboot will trigger a non-error viewer-disconnected
signal, but we treat it like an error, which makes it difficult to
reconnect to the VM console.
If there's no error message raised, treat the disconnect like a
non-error cases.
Signed-off-by: Cole Robinson <crobinso@redhat.com>
... with the 'hypervisor default' address. In this case, we need to
force set port=-1 in the XML, to make the changes actually stick
Signed-off-by: Cole Robinson <crobinso@redhat.com>
The sync_vcpus_topology method will sometimes set the self.vcpus prop,
but other times leave it unset. This is confusing an unhelpful
behaviour. Both callers have logic to set the self.vcpus prop
to a default value of sync_vcpus_topology failed to do so. It makes
more sense to just pass this default value in.
Signed-off-by: Daniel P. Berrangé <berrange@redhat.com>
Cole Robinson