From: Yinghai Lu <yhlu.kernel.send@gmail.com>
To: Ingo Molnar <mingo@elte.hu>, "H. Peter Anvin" <hpa@zytor.com>,
Thomas Gleixner <tglx@linutronix.de>,
Andrew Morton <akpm@linux-foundation.org>
Cc: "linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>
Subject: [PATCH] x86: process fam 10h like k8 with fixed mtrr setting
Date: Mon, 5 May 2008 15:57:38 -0700 [thread overview]
Message-ID: <200805051557.38556.yhlu.kernel@gmail.com> (raw)
otherwise fixed MTRR for family 10h may not be changed
Signed-off-by: Yinghai Lu <yhlu.kernel@gmail.com>
Index: linux-2.6/arch/x86/kernel/cpu/mtrr/generic.c
===================================================================
--- linux-2.6.orig/arch/x86/kernel/cpu/mtrr/generic.c
+++ linux-2.6/arch/x86/kernel/cpu/mtrr/generic.c
@@ -342,7 +342,7 @@ static void set_fixed_range(int msr, boo
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]);
next reply other threads:[~2008-05-05 22:59 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-05 22:57 Yinghai Lu [this message]
2008-05-06 12:40 ` [PATCH] x86: process fam 10h like k8 with fixed mtrr setting Ingo Molnar
2008-05-20 12:54 ` Pavel Machek
2008-05-20 17:24 ` Yinghai Lu
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