Re: [PATCH 1/2] arm64/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT

[Chintan Pandya]

On 5/2/2018 1:24 PM, Ganesh Mahendran wrote:
> Set ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT for arm64. This
> enables Speculative Page Fault handler.
>
> Signed-off-by: Ganesh Mahendran <opensource.ganesh@xxxxxxxxx>
> ---
> This patch is on top of Laurent's v10 spf
> ---
>   arch/arm64/Kconfig | 1 +
>   1 file changed, 1 insertion(+)
>
> diff --git a/arch/arm64/Kconfig b/arch/arm64/Kconfig
> index eb2cf49..cd583a9 100644
> --- a/arch/arm64/Kconfig
> +++ b/arch/arm64/Kconfig
> @@ -144,6 +144,7 @@ config ARM64
>   	select SPARSE_IRQ
>   	select SYSCTL_EXCEPTION_TRACE
>   	select THREAD_INFO_IN_TASK
> +	select ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT if SMP
>   	help
>   	  ARM 64-bit (AArch64) Linux support.
>   

You may also consider re-ordering of patches in next version. Generally,
config enablement assumes effectiveness of that config.

Chintan
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