>>> On 27.03.18 at 11:07, <jgr...@suse.com> wrote:
> If possible use the INVPCID instruction for flushing the TLB instead of
> toggling cr4.pge for that purpose.
>
> While at it remove the dependency on cr4.pge being required for mtrr
> loading, as this will be required later anyway.
>
> Add a command line option "invpcid" for controlling the use of
> INVPCID (default to true).
>
> Signed-off-by: Juergen Gross <jgr...@suse.com>
Reviewed-by: Jan Beulich <jbeul...@suse.com>
with one remarks (which could be addressed while committing):
> @@ -71,6 +72,25 @@ static void post_flush(u32 t)
> this_cpu(tlbflush_time) = t;
> }
>
> +static void do_tlb_flush(void)
> +{
> + u32 t;
> +
> + t = pre_flush();
In the original code this was the initializer of the variable, and I'd
prefer if that stayed that way (unless later changes require the
split).
Jan
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