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SubjectRe: [PATCH] paravirt/xen: add pvop for page_is_ram
Jeremy Fitzhardinge wrote:
> From: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
>
> A guest domain may have external pages mapped into its address space,
> in order to share memory with other domains. These shared pages are
> more akin to io mappings than real RAM, and should not pass the
> page_is_ram test. Add a paravirt op for this so that a hypervisor
> backend can validate whether a page should be considered ram or not.
>
> Signed-off-by: Jeremy Fitzhardinge <jeremy.fitzhardinge@citrix.com>
>

Why are these pages mapped as RAM in the memory map? That is the right
way to handle that, not by adding yet another bloody hook...

-hpa

--
H. Peter Anvin, Intel Open Source Technology Center
I work for Intel. I don't speak on their behalf.



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