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Re: [Qemu-devel] [PATCH v2 0/5] AArch64 TLB performance improvements

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH v2 0/5] AArch64 TLB performance improvements
Date: Fri, 1 Aug 2014 17:06:16 +0100

On 30 July 2014 16:20, Alex Bennée <address@hidden> wrote:
> Hi,
> Not too much has changed:
>   * added a review tag
>   * fixed up review comments
>   * added some notes about benchmark results
>   * added a patch to disable ARMv5 in AArch64 build
> The most important thing is I've measured a 25-30% improvement in
> kernel and android boot time.
> Alex Bennée (5):
>   target-arm: don't hardcode mask values in arm_cpu_handle_mmu_fault
>   target-arm: A64: fix TLB flush instructions
>   target-arm: A64: fix use 12 bit page tables for AArch64
>   scripts/make_device_config.sh: inline includes
>   target-arm: A64: disable a bunch of ARMv5 machines

I'm taking the first two of these into target-arm.next because
they're obvious standalone bugfixes. I need to think about the
last three a bit more: I dislike just dropping the ARMv5 CPUs
from qemu-system-aarch64, it's kind of arbitrary.

-- PMM

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