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

[Paolo Bonzini]

Il 30/07/2014 17:20, Alex Bennée ha scritto:
> 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
> 
>  default-configs/aarch64-softmmu.mak |  5 ++++-
>  default-configs/arm-softmmu.mak     |  1 +
>  hw/arm/Makefile.objs                | 19 ++++++++++++++----
>  hw/arm/realview.c                   |  6 ++++++
>  scripts/make_device_config.sh       | 39 
> ++++++++++++++++++++++---------------
>  target-arm/cpu.c                    | 36 +++++++++++++++++++++-------------
>  target-arm/cpu.h                    | 13 ++++++++++---
>  target-arm/helper.c                 | 14 +++++++++----
>  8 files changed, 92 insertions(+), 41 deletions(-)
> 

Hi Alex, have you seen this patch?  Perhaps you're interested in
reviving it.

http://article.gmane.org/gmane.comp.emulators.qemu/253864

Paolo