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Re: [PATCH v2] x86/shim: Simplify compat handling in write_start_info()



On 20.04.2021 19:41, Andrew Cooper wrote:
> Factor out a compat boolean to remove the lfence overhead from multiple
> is_pv_32bit_domain() calls.
> 
> Signed-off-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
> ---
> CC: Jan Beulich <JBeulich@xxxxxxxx>
> CC: Roger Pau Monné <roger.pau@xxxxxxxxxx>
> CC: Wei Liu <wl@xxxxxxx>
> 
> v2:
>  * Reinstate the conditional for the start info pointer, in case Intel/AMD
>    can't be persuaded to adjust the architectural guarentees for upper bits in
>    compatibility mode transitions.

As indicated before, with this adjustment
Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>

Jan



 


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