Re: [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@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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Inc. is a member of the Code Aurora Forum, a Linux Foundation
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