Re: [PATCH v2 2/2] target/arm: Split out aa64_va_parameter_tbi, aa64_va_parameter_tbid

[Peter Maydell]

On Tue, 11 Feb 2020 at 19:42, Richard Henderson
<address@hidden> wrote:
>
> For the purpose of rebuild_hflags_a64, we do not need to compute
> all of the va parameters, only tbi.  Moreover, we can compute them
> in a form that is more useful to storing in hflags.
>
> This eliminates the need for aa64_va_parameter_both, so fold that
> in to aa64_va_parameter.  The remaining calls to aa64_va_parameter
> are in get_phys_addr_lpae and in pauth_helper.c.
>
> This reduces the total cpu consumption of aa64_va_parameter in a
> kernel boot plus a kvm guest kernel boot from 3% to 0.5%.
>
> Signed-off-by: Richard Henderson <address@hidden>

Reviewed-by: Peter Maydell <address@hidden>

thanks
-- PMM