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SubjectRe: [PATCH 1/2] xen: Remove Xen PVH/PVHVM dependency on PCI
On Thu, Oct 15, 2020 at 05:02:21PM +0200, Jan Beulich wrote:
> On 15.10.2020 16:59, Jason Andryuk wrote:
> > On Thu, Oct 15, 2020 at 4:10 AM Jan Beulich <jbeulich@suse.com> wrote:
> >>
> >> On 14.10.2020 19:53, Jason Andryuk wrote:
> >>> @@ -76,7 +80,9 @@ config XEN_DEBUG_FS
> >>> Enabling this option may incur a significant performance overhead.
> >>>
> >>> config XEN_PVH
> >>> - bool "Support for running as a Xen PVH guest"
> >>> + bool "Xen PVH guest support"
> >>
> >> Tangential question: Is "guest" here still appropriate, i.e.
> >> isn't this option also controlling whether the kernel can be
> >> used in a PVH Dom0?
> >
> > Would you like something more generic like "Xen PVH support" and
> > "Support for running in Xen PVH mode"?
>
> Yeah, just dropping "guest" would be fine with me. No idea how
> to reflect that PVH Dom0 isn't supported, yet.

The fact that it isn't supported by Xen shouldn't be reflected on the
Linux configuration, as it's independent. Ie: you could run this Linux
kernel on a future version of Xen where PVH dom0 is supported.

There's already a warning printed by Xen when booting PVH dom0 about
not being a supported mode.

Thanks, Roger.

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