[PATCH] [8/58] x86_64: Use string instruction memcpy/memset on AMD Fam10

Signed-off-by: Andi Kleen <[email protected]>

---
 arch/x86_64/kernel/setup.c |    2 ++
 1 file changed, 2 insertions(+)

Index: linux/arch/x86_64/kernel/setup.c
===================================================================
--- linux.orig/arch/x86_64/kernel/setup.c
+++ linux/arch/x86_64/kernel/setup.c
@@ -575,6 +575,8 @@ static void __cpuinit init_amd(struct cp
 	level = cpuid_eax(1);
 	if (c->x86 == 15 && ((level >= 0x0f48 && level < 0x0f50) || level >= 0x0f58))
 		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
+	if (c->x86 == 0x10)
+		set_bit(X86_FEATURE_REP_GOOD, &c->x86_capability);
 
 	/* Enable workaround for FXSAVE leak */
 	if (c->x86 >= 6)
-
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---

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    • From: Andi Kleen <[email protected]>

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