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[PATCH v9 02/24] x86/mm: Define CONFIG_SPECULATIVE_PAGE_FAULT




Introduce CONFIG_SPECULATIVE_PAGE_FAULT which turns on the Speculative Page
Fault handler when building for 64bits with SMP.

Cc: Thomas Gleixner <tglx@xxxxxxxxxxxxx>
Signed-off-by: Laurent Dufour <ldufour@xxxxxxxxxxxxxxxxxx>
---
 arch/x86/Kconfig | 1 +
 1 file changed, 1 insertion(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index a0a777ce4c7c..4c018c48d414 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig
@@ -29,6 +29,7 @@ config X86_64
 	select HAVE_ARCH_SOFT_DIRTY
 	select MODULES_USE_ELF_RELA
 	select X86_DEV_DMA_OPS
+	select SPECULATIVE_PAGE_FAULT if SMP
 
 #
 # Arch settings
-- 
2.7.4