diff --git a/arch/x86/kernel/cpu/common.c b/arch/x86/kernel/cpu/common.c
index a428ffc..81483ec 100644
--- a/arch/x86/kernel/cpu/common.c
+++ b/arch/x86/kernel/cpu/common.c
@@ -314,6 +314,8 @@ static void __cpuinit early_get_cap(struct cpuinfo_x86 *c)
 	case X86_VENDOR_AMD:
 		if (c->x86 >= 0xf && c->x86 <= 0x11)
 			set_cpu_cap(c, X86_FEATURE_PAT);
+		if (c->x86 == 6 && c->x86_modes == 7)
+			set_cpu_cap(c, X86_FEATURE_PAT);
 		break;
 	case X86_VENDOR_INTEL:
 		if (c->x86 == 0xF || (c->x86 == 6 && c->x86_model >= 15))