[Xen-changelog] [xen-unstable] [HVM][SVM] 64-bit Windows HVM guests require MCE/MCA CPUID bits to be present.

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User kfraser@xxxxxxxxxxxxxxxxxxxxx
# Node ID dea06c7fd19d5174ee4ff489e8c75ef88cd3cd43
# Parent  0c29e0d1c67bd92f1baff6b1a697ee5ea6f70e4d
[HVM][SVM] 64-bit Windows HVM guests require MCE/MCA CPUID bits to be present.
This SVM patch removes "masking off" of these bits for AMD-V HVM guests.
Signed-off-by: Tom Woller <thomas.woller@xxxxxxx>=20
---
 xen/arch/x86/hvm/svm/svm.c |    3 ---
 1 files changed, 3 deletions(-)

diff -r 0c29e0d1c67b -r dea06c7fd19d xen/arch/x86/hvm/svm/svm.c
--- a/xen/arch/x86/hvm/svm/svm.c        Fri Sep 29 11:17:29 2006 +0100
+++ b/xen/arch/x86/hvm/svm/svm.c        Fri Sep 29 11:21:02 2006 +0100
@@ -1076,9 +1076,6 @@ static void svm_vmexit_do_cpuid(struct v
                    clear_bit(X86_FEATURE_NX & 31, &edx);
             }
             clear_bit(X86_FEATURE_PSE36, &edx);
-            /* Disable machine check architecture */
-            clear_bit(X86_FEATURE_MCA, &edx);
-            clear_bit(X86_FEATURE_MCE, &edx);
             if (input == 0x00000001 )
             {
                 /* Clear out reserved bits. */

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