Re: [Xen-devel] [PATCH 4/6] x86/HVM: limit flushing on cache attribute pinning adjustments

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 03/03/16 16:37, Jan Beulich wrote:
> Avoid cache flush on EPT when removing a UC- range, since when used
> this type gets converted to UC anyway (there's no UC- among the types
> valid in MTRRs and hence EPT's emt field).
>
> We might further wwant to consider only forcing write buffer flushes
> when removing WC ranges.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

Reviewed-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>

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