On 12.03.2025 17:36, Roger Pau Monné wrote: > 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.c...@amd.com> >>> --- >>> 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.
Hmm, yes and no. No in so far as I as someone who simply wants to use Xen would read the above statement as indicating full pass-through support. Which first and foremost includes the passing through of VFs. Jan
