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Re: [qemu-s390x] [PATCH-for-4.2 v2 2/6] s390x/tcg: Rework MMU selection

From: Thomas Huth
Subject: Re: [qemu-s390x] [PATCH-for-4.2 v2 2/6] s390x/tcg: Rework MMU selection for instruction fetches
Date: Wed, 14 Aug 2019 19:44:18 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.8.0

On 8/14/19 9:23 AM, David Hildenbrand wrote:
> Instructions are always fetched from primary address space, except when
> in home address mode. Perform the selection directly in cpu_mmu_index().
> get_mem_index() is only used to perform data access, instructions are
> fetched via cpu_lduw_code(), which translates to cpu_mmu_index(env, true).
> We don't care about restricting the access permissions of the TLB
> entries anymore, as we no longer enter PRIMARY entries into the
> SECONDARY MMU. Cleanup related code a bit.
> Signed-off-by: David Hildenbrand <address@hidden>
> ---
>  target/s390x/cpu.h        |  7 +++++++
>  target/s390x/mmu_helper.c | 38 +++++++++++++++-----------------------
>  2 files changed, 22 insertions(+), 23 deletions(-)

Reviewed-by: Thomas Huth <address@hidden>

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