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Commit 833e78bf authored by Yinghai Lu's avatar Yinghai Lu Committed by Thomas Gleixner
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x86: process fam 10h like k8 with fixed mtrr setting 



otherwise fixed MTRR for family 10h may not be changed.

Signed-off-by: default avatarYinghai Lu <yhlu.kernel@gmail.com>
Signed-off-by: default avatarIngo Molnar <mingo@elte.hu>
Signed-off-by: default avatarThomas Gleixner <tglx@linutronix.de>
parent 12031a62

arch/x86/kernel/cpu/mtrr/generic.c

+1 −1
Original line number Diff line number Diff line
@@ -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]);