From 833e78bfeeef628f0201349a0a05a54f48f07884 Mon Sep 17 00:00:00 2001
From: Yinghai Lu <yhlu.kernel.send@gmail.com>
Date: Mon, 5 May 2008 15:57:38 -0700
Subject: [PATCH] x86: process fam 10h like k8 with fixed mtrr setting
otherwise fixed MTRR for family 10h may not be changed.
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
---
arch/x86/kernel/cpu/mtrr/generic.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/x86/kernel/cpu/mtrr/generic.c b/arch/x86/kernel/cpu/mtrr/generic.c
index 5aae648600b..a83f5cd7888 100644
--- a/arch/x86/kernel/cpu/mtrr/generic.c
+++ b/arch/x86/kernel/cpu/mtrr/generic.c
@@ -342,7 +342,7 @@ static void set_fixed_range(int msr, bool *changed, unsigned int *msrwords)
if (lo != msrwords[0] || hi != msrwords[1]) {
if (boot_cpu_data.x86_vendor == X86_VENDOR_AMD &&
- boot_cpu_data.x86 == 15 &&
+ (boot_cpu_data.x86 >= 0x0f && boot_cpu_data.x86 <= 0x11) &&
((msrwords[0] | msrwords[1]) & K8_MTRR_RDMEM_WRMEM_MASK))
k8_enable_fixed_iorrs();
mtrr_wrmsr(msr, msrwords[0], msrwords[1]);
--
2.41.3