Re: [Xen-devel] [PATCH v6 4/9] xen/x86: use invpcid for flushing the TLB

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 10.04.18 at 09:58, <jgross@xxxxxxxx> 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 <jgross@xxxxxxxx>

Reviewed-by: Jan Beulich <jbeulich@xxxxxxxx>



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