Re: [Xen-devel] [PATCH v2 2/7] x86: remove CR reads from exit-to-guest path

[Andrew Cooper <andrew.cooper3@xxxxxxxxxx>]

On 07/02/18 16:12, Jan Beulich wrote:
> CR3 is - during normal operation - only ever loaded from v->arch.cr3,
> so there's no need to read the actual control register. For CR4 we can
> generally use the cached value on all synchronous entry end exit paths.
> Drop the write_cr3 macro, as the two use sites are probably easier to
> follow without its use.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>

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

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