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SubjectRe: [RFC] PCI extended conf space when MMCONFIG disabled because of e820
Brice Goglin wrote:er.
>
> What would you think of a patch implementing the following strategy:
> 1) if MMCONFIG works, always use it (no change)
> 2) if MMCONFIG is disabled and we are accessing the regular config
> space, use direct conf (no change, should ensure that any machine will
> still boot fine)
> 3) if MMCONFIG is disabled but we are accessing the _extended_ config
> space, try mmconfig anyway since there's no other way to do it.

an OS isn't allowed to mix old and new access methods realistically so I don't think
this is a viable good solution...
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