Re: [PATCH v1] CHANGELOG.md: Mention PCI passthrough for HVM domUs

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

On Wed, Mar 12, 2025 at 09:51:09AM +0100, Jan Beulich wrote:
> On 12.03.2025 05:02, Jiqian Chen wrote:
> > PCI passthrough is already supported for HVM domUs when dom0 is PVH
> > on x86. The last related patch on Qemu side was merged after Xen4.20
> > release. So mention this feature in Xen4.21 entry.
> > 
> > Signed-off-by: Jiqian Chen <Jiqian.Chen@xxxxxxx>
> > ---
> >  CHANGELOG.md | 1 +
> >  1 file changed, 1 insertion(+)
> > 
> > diff --git a/CHANGELOG.md b/CHANGELOG.md
> > index 7201c484f899..b6de9b72ea7a 100644
> > --- a/CHANGELOG.md
> > +++ b/CHANGELOG.md
> > @@ -12,6 +12,7 @@ The format is based on [Keep a 
> > Changelog](https://keepachangelog.com/en/1.0.0/)
> >   - On x86:
> >     - Option to attempt to fixup p2m page-faults on PVH dom0.
> >     - Resizable BARs is supported for PVH dom0.
> > +   - Support PCI passthrough for HVM domUs when dom0 is PVH.
> 
> Aren't we still in need of SR-IOV support in order to make such an
> unconditional statement?

I view SR-IOV as kind of orthogonal to this: SR-IOV is not
supported at all on PVH dom0, so it's not just pass through, but the
capability itself that won't work as expected when using such devices.

Regards, Roger.