Re: [PATCH v3 7/7] s390x/mmu: Convert to non-recursive page table walk

[Richard Henderson]

On 9/27/19 2:58 AM, David Hildenbrand wrote:
> A non-recursive implementation allows to make better use of the
> branch predictor, avoids function calls, and makes the implementation of
> new features only for a subset of region table levels easier.
> 
> We can now directly compare our implementation to the KVM gaccess
> implementation in arch/s390/kvm/gaccess.c:guest_translate().
> 
> Signed-off-by: David Hildenbrand <address@hidden>
> ---
>  target/s390x/mmu_helper.c | 212 ++++++++++++++++++++------------------
>  1 file changed, 112 insertions(+), 100 deletions(-)

Reviewed-by: Richard Henderson <address@hidden>


r~