[PATCH v6 01/24] x86/mm: Define CONFIG_SPF

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

Signed-off-by: Laurent Dufour <redacted>
---
 arch/x86/Kconfig | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/arch/x86/Kconfig b/arch/x86/Kconfig
index a317d5594b6a..d74353b85aaf 100644
--- a/arch/x86/Kconfig
+++ b/arch/x86/Kconfig

@@ -2882,6 +2882,10 @@ config X86_DMA_REMAP
 config HAVE_GENERIC_GUP
 	def_bool y
 
+config SPF
+	def_bool y
+	depends on X86_64 && SMP
+
 source "net/Kconfig"
 
 source "drivers/Kconfig"

-- 
2.7.4