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Red Hat Bugzilla – Attachment 299379 Details for
Bug 439254
Xen hypervisor doesn't detect Penryn cpu_model correctly
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[patch]
fix to generic_identify to use extended model
penryn-cpu-model-v1.patch (text/plain), 653 bytes, created by
Geoff Gustafson
on 2008-03-27 19:11:34 UTC
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Description:
fix to generic_identify to use extended model
Filename:
MIME Type:
Creator:
Geoff Gustafson
Created:
2008-03-27 19:11:34 UTC
Size:
653 bytes
patch
obsolete
>Index: xen/arch/x86/cpu/common.c >=================================================================== >--- xen.orig/arch/x86/cpu/common.c 2008-03-27 14:57:56.000000000 -0400 >+++ xen/arch/x86/cpu/common.c 2008-03-27 14:59:47.000000000 -0400 >@@ -250,10 +250,10 @@ void __devinit generic_identify(struct c > c->x86_capability[4] = excap; > c->x86 = (tfms >> 8) & 15; > c->x86_model = (tfms >> 4) & 15; >- if (c->x86 == 0xf) { >+ if (c->x86 == 0xf) > c->x86 += (tfms >> 20) & 0xff; >+ if (c->x86 >= 0x6) > c->x86_model += ((tfms >> 16) & 0xF) << 4; >- } > c->x86_mask = tfms & 15; > } else { > /* Have CPUID level 0 only - unheard of */
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