Re: [PATCH v7 00/11] KVM: xen: update shared_info and vcpu_info handling

[David Woodhouse]

On Mon, 2023-10-02 at 09:57 +0000, Paul Durrant wrote:
> From: Paul Durrant <pdurrant@xxxxxxxxxx>
> 
> The following text from the original cover letter still serves as an
> introduction to the series:
> 
> "Currently we treat the shared_info page as guest memory and the VMM
> informs KVM of its location using a GFN. However it is not guest memory as
> such; it's an overlay page. So we pointlessly invalidate and re-cache a
> mapping to the *same page* of memory every time the guest requests that
> shared_info be mapped into its address space. Let's avoid doing that by
> modifying the pfncache code to allow activation using a fixed userspace HVA
> as well as a GPA."
> 
> This version of the series is functionally the same as version 6. I have
> simply added David Woodhouse's R-b to patch 11 to indicate that he has
> now fully reviewed the series.

Thanks. I believe Sean is probably waiting for us to stop going back
and forth, and for the dust to settle. So for the record: I think I'm
done heckling and this is ready to go in.

Are you doing the QEMU patches or am I?

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