Hi Marc,
On 19/10/2019 10:55, Marc Zyngier wrote:
> When erratum 1319367 is being worked around, special care must
> be taken not to allow the page table walker to populate TLBs
> while we have the stage-2 translation enabled (which would otherwise
> result in a bizare mix of the host S1 and the guest S2).
>
> We enforce this by setting TCR_EL1.EPD{0,1} before restoring the S2
> configuration, and clear the same bits after having disabled S2.
Reviewed-by: James Morse <james.morse@xxxxxxx>
Thanks,
James
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