Re: [PATCH] x86/pvh: update "Host ACPI" support status

[Roger Pau Monné <roger.pau@xxxxxxxxxx>]

On Thu, Aug 14, 2025 at 09:21:53AM +0200, Jan Beulich wrote:
> On 13.08.2025 11:32, Roger Pau Monne wrote:
> > For x86 PVH dom0 makes uses of the host ACPI tables, and hence the status
> > of Host ACPI entry should have been updated to reflect that PVH dom0 is now
> > supported, and Host ACPI support is not one of the caveats.
> 
> Well, not explicitly, but seeing changes like 6378909b41c4 ("x86/PVH: expose
> OEMx ACPI tables to Dom0") I'm not convinced we're there yet.

How would we know when we are there?  I think listing it here means it
had some degree of testing (which it does in Gitlab CI), plus that we
will address issues and backport fixes (which to my knowledge we
already do).

AFAICT the only way x86 PVH dom0 can get it's hardware information is
from ACPI, so not listing it as supported is IMO weird, it's not like
PCI passthrough or some additional feature, without ACPI support you
cannot really boot a PVH dom0 I think.

Thanks, Roger.