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Re: [Xen-devel] [PATCH] x86/AMD: use correct shift count when merging model and stepping



Good catch. Could you please apply it to xen-4.0 and xen-4.1 trees too?

Acked-by: Wei Huang <wei.huang2@xxxxxxx>

-Wei

On 12/15/2011 06:38 AM, Keir Fraser wrote:
On 15/12/2011 11:21, "Jan Beulich"<JBeulich@xxxxxxxx>  wrote:

... for legacy errata matching.

Signed-off-by: Jan Beulich<jbeulich@xxxxxxxx>
Acked-by: Keir Fraser<keir@xxxxxxx>

--- a/xen/arch/x86/cpu/amd.c
+++ b/xen/arch/x86/cpu/amd.c
@@ -216,7 +216,7 @@ int cpu_has_amd_erratum(const struct cpu
}

/* OSVW unavailable or ID unknown, match family-model-stepping range */
- ms = (cpu->x86_model<<  8) | cpu->x86_mask;
+ ms = (cpu->x86_model<<  4) | cpu->x86_mask;
while ((range = va_arg(ap, int))) {
if ((cpu->x86 == AMD_MODEL_RANGE_FAMILY(range))&&
    (ms>= AMD_MODEL_RANGE_START(range))&&



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