Re: [PATCH v2 1/2] accel/tcg: Add tlb_flush_page_bits_by_mmuidx*

[Peter Maydell]

On Fri, 16 Oct 2020 at 22:07, Richard Henderson
<richard.henderson@linaro.org> wrote:
>
> On ARM, the Top Byte Ignore feature means that only 56 bits of
> the address are significant in the virtual address.  We are
> required to give the entire 64-bit address to FAR_ELx on fault,
> which means that we do not "clean" the top byte early in TCG.
>
> This new interface allows us to flush all 256 possible aliases
> for a given page, currently missed by tlb_flush_page*.
>
> Signed-off-by: Richard Henderson <richard.henderson@linaro.org>

Reviewed-by: Peter Maydell <peter.maydell@linaro.org>

thanks
-- PMM