From: Thomas Huth <thuth@redhat.com>
To: David Hildenbrand <david@redhat.com>, qemu-devel@nongnu.org
Cc: Janosch Frank <frankja@linux.ibm.com>,
Cornelia Huck <cohuck@redhat.com>,
Richard Henderson <richard.henderson@linaro.org>,
Halil Pasic <pasic@linux.ibm.com>,
Christian Borntraeger <borntraeger@de.ibm.com>,
qemu-s390x@nongnu.org
Subject: Re: [PATCH v4 7/7] s390x/mmu: Convert to non-recursive page table walk
Date: Tue, 8 Oct 2019 16:24:00 +0200 [thread overview]
Message-ID: <1f2584de-012e-2de1-5410-75c24476ed8b@redhat.com> (raw)
In-Reply-To: <20191004105102.15821-8-david@redhat.com>
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 <richard.henderson@linaro.org>
> Signed-off-by: David Hildenbrand <david@redhat.com>
> ---
> target/s390x/mmu_helper.c | 208 ++++++++++++++++++++------------------
> 1 file changed, 108 insertions(+), 100 deletions(-)
Reviewed-by: Thomas Huth <thuth@redhat.com>
next prev parent reply other threads:[~2019-10-08 14:42 UTC|newest]
Thread overview: 13+ messages / expand[flat|nested] mbox.gz Atom feed top
2019-10-04 10:50 [PATCH v4 0/7] s390x/mmu: DAT translation rewrite David Hildenbrand
2019-10-04 10:50 ` [PATCH v4 1/7] s390x/mmu: Drop debug logging from MMU code David Hildenbrand
2019-10-04 10:50 ` [PATCH v4 2/7] s390x/mmu: Move DAT protection handling out of mmu_translate_asce() David Hildenbrand
2019-10-04 10:50 ` [PATCH v4 3/7] s390x/mmu: Inject DAT exceptions from a single place David Hildenbrand
2019-10-04 10:50 ` [PATCH v4 4/7] s390x/mmu: Inject PGM_ADDRESSING on bogus table addresses David Hildenbrand
2019-10-04 10:51 ` [PATCH v4 5/7] s390x/mmu: Use TARGET_PAGE_MASK in mmu_translate_pte() David Hildenbrand
2019-10-04 10:51 ` [PATCH v4 6/7] s390x/mmu: DAT table definition overhaul David Hildenbrand
2019-10-08 14:20 ` Thomas Huth
2019-10-09 10:45 ` Cornelia Huck
2019-10-09 10:47 ` David Hildenbrand
2019-10-04 10:51 ` [PATCH v4 7/7] s390x/mmu: Convert to non-recursive page table walk David Hildenbrand
2019-10-08 14:24 ` Thomas Huth [this message]
2019-10-09 10:31 ` [PATCH v4 0/7] s390x/mmu: DAT translation rewrite David Hildenbrand
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