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[Xen-devel] [PATCH] x86: set CPUID topology leaf as unsupported for dom0
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| Subject: | [Xen-devel] [PATCH] x86: set CPUID topology leaf as unsupported for dom0 |
| From: | David Vrabel <david.vrabel@xxxxxxxxxx> |
| Date: | Thu, 14 Jul 2011 15:21:29 +0100 |
| Cc: | David Vrabel <david.vrabel@xxxxxxxxxx> |
| Delivery-date: | Thu, 14 Jul 2011 07:22:16 -0700 |
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# HG changeset patch
# User David Vrabel <david.vrabel@xxxxxxxxxx>
# Date 1310653121 -3600
# Branch cpuid
# Node ID 3de3126a6b2c496b884363f0142a2677ab0f4304
# Parent b3705aae543b95fd7f6bb38c21b5f1edd2b70609
x86: set CPUID topology leaf as unsupported for dom0
The CPUID Extended Topology Enumerate leaf isn't useful for dom0.
Report it as unsupported.
Signed-off-by: David Vrabel <david.vrabel@xxxxxxxxxx>
diff -r b3705aae543b -r 3de3126a6b2c xen/arch/x86/traps.c
--- a/xen/arch/x86/traps.c Thu Jul 14 12:32:04 2011 +0100
+++ b/xen/arch/x86/traps.c Thu Jul 14 15:18:41 2011 +0100
@@ -861,6 +861,7 @@ static void pv_cpuid(struct cpu_user_reg
/* fall through */
case 5: /* MONITOR/MWAIT */
case 0xa: /* Architectural Performance Monitor Features */
+ case 0xb: /* Extended Topology Enumerate */
case 0x8000000a: /* SVM revision and features */
case 0x8000001b: /* Instruction Based Sampling */
case 0x8000001c: /* Light Weight Profiling */
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