Re: [Xen-devel] [PATCH v3 0/6] xen/arm: Simplify do_trap_*_abort_guest

[Stefano Stabellini <sstabellini@xxxxxxxxxx>]

On Thu, 4 Aug 2016, Julien Grall wrote:
> The current data/instruction abort paths contain unnecessary code and
> translate too often a VA to a IPA. This series aim to simplify this path.
> 
> Now that the register HPFAR_EL2 is read in some case that can be affected
> by the erratum 834220 on Cortex-A57, we need to implement a workaround
> for it (see patch #6).
> 
> A branch with this series applied can be found on xenbits:
> git://xenbits.xen.org/people/julieng/xen-unstable.git branch abort-handlers-v3

committed, thank you


> Yours sincerely,
> 
> Julien Grall (6):
>   xen/arm: traps: Simplify the switch in do_trap_*_abort_guest
>   xen/arm: Provide macros to help creating workaround helpers
>   xen/arm: Use check_workaround to handle the erratum 766422
>   xen/arm: traps: MMIO should only be emulated for fault translation
>   xen/arm: traps: Avoid unnecessary VA -> IPA translation in abort
>     handlers
>   xen/arm: arm64: Add Cortex-A57 erratum 834220 workaround
> 
>  docs/misc/arm/silicon-errata.txt      |  1 +
>  xen/arch/arm/Kconfig                  | 21 +++++++++
>  xen/arch/arm/cpuerrata.c              | 15 +++++++
>  xen/arch/arm/traps.c                  | 81 
> ++++++++++++++++++++++-------------
>  xen/include/asm-arm/arm32/processor.h |  4 --
>  xen/include/asm-arm/arm64/processor.h |  2 -
>  xen/include/asm-arm/cpuerrata.h       | 42 ++++++++++++++++++
>  xen/include/asm-arm/cpufeature.h      |  4 +-
>  xen/include/asm-arm/processor.h       |  2 +
>  9 files changed, 136 insertions(+), 36 deletions(-)
> 
> -- 
> 1.9.1
> 

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