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SubjectRe: [PATCH 1/2] arm64/mm: define ARCH_SUPPORTS_SPECULATIVE_PAGE_FAULT
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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@gmail.com>
> ---
> 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
--
Qualcomm India Private Limited, on behalf of Qualcomm Innovation Center,
Inc. is a member of the Code Aurora Forum, a Linux Foundation
Collaborative Project

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