Re: [PATCH] hw/vfio/pci-quirks: Support alternate offset for GPUDirect Cliques

[Alex Williamson <alex.williamson@redhat.com>]

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On Thu,  8 Jun 2023 11:42:11 -0600
Alex Williamson <alex.williamson@redhat.com> wrote:

> NVIDIA Turing and newer GPUs implement the MSI-X capability at the offset
> previously reserved for use by hypervisors to implement the GPUDirect
> Cliques capability.  A revised specification provides an alternate
> location.  Add a config space walk to the quirk to check for conflicts,
> allowing us to fall back to the new location or generate an error at the
> quirk setup rather than when the real conflicting capability is added
> should there be no available location.
> 
> Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
> ---
> 
> The specification doesn't have a public home, but I've been given
> permission to post it to the list.  Therefore I'll reply to this with
> the document attached and update the link in a v2 posting once that's
> available in the list archive.

Updated spec attached.  Thanks,

Alex

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