On 17/09/2019 07:13, Jan Beulich wrote:
> We really need to flush the TLB just once, if we do so with or after the
> CR3 write. The only case where two flushes are unavoidable is when we
> mean to turn off CR4.PGE (perhaps just temporarily; see the code
> comment).
>
> Signed-off-by: Jan Beulich <jbeul...@suse.com>
> Reviewed-by: Roger Pau Monné <roger....@citrix.com>

Acked-by: Andrew Cooper <andrew.coop...@citrix.com>

I'm a bit hesitant, considering the two especially subtle TLB flushing
bugs we introduced with the last change to this function, but that alone
isn't a legitimate reason to block the patch.

_______________________________________________
Xen-devel mailing list
Xen-devel@lists.xenproject.org
https://lists.xenproject.org/mailman/listinfo/xen-devel

Reply via email to