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Re: [PATCH v4 7/7] s390x/mmu: Convert to non-recursive page table walk
From: |
Thomas Huth |
Subject: |
Re: [PATCH v4 7/7] s390x/mmu: Convert to non-recursive page table walk |
Date: |
Tue, 8 Oct 2019 16:24:00 +0200 |
User-agent: |
Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.9.0 |
On 04/10/2019 12.51, 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().
>
> Reviewed-by: Richard Henderson <address@hidden>
> Signed-off-by: David Hildenbrand <address@hidden>
> ---
> target/s390x/mmu_helper.c | 208 ++++++++++++++++++++------------------
> 1 file changed, 108 insertions(+), 100 deletions(-)
Reviewed-by: Thomas Huth <address@hidden>
- [PATCH v4 1/7] s390x/mmu: Drop debug logging from MMU code, (continued)
- [PATCH v4 1/7] s390x/mmu: Drop debug logging from MMU code, David Hildenbrand, 2019/10/04
- [PATCH v4 2/7] s390x/mmu: Move DAT protection handling out of mmu_translate_asce(), David Hildenbrand, 2019/10/04
- [PATCH v4 3/7] s390x/mmu: Inject DAT exceptions from a single place, David Hildenbrand, 2019/10/04
- [PATCH v4 4/7] s390x/mmu: Inject PGM_ADDRESSING on bogus table addresses, David Hildenbrand, 2019/10/04
- [PATCH v4 5/7] s390x/mmu: Use TARGET_PAGE_MASK in mmu_translate_pte(), David Hildenbrand, 2019/10/04
- [PATCH v4 6/7] s390x/mmu: DAT table definition overhaul, David Hildenbrand, 2019/10/04
- [PATCH v4 7/7] s390x/mmu: Convert to non-recursive page table walk, David Hildenbrand, 2019/10/04
- Re: [PATCH v4 7/7] s390x/mmu: Convert to non-recursive page table walk,
Thomas Huth <=
- Re: [PATCH v4 0/7] s390x/mmu: DAT translation rewrite, David Hildenbrand, 2019/10/09