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KVM: SVM: Ignore write of hwcr.ignne
author
Joerg Roedel
<joerg.roedel@amd.com>
Wed, 24 Feb 2010 17:59:16 +0000
(18:59 +0100)
committer
Avi Kivity
<avi@redhat.com>
Sun, 25 Apr 2010 10:53:17 +0000
(13:53 +0300)
Hyper-V as a guest wants to write this bit. This patch
ignores it.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
arch/x86/kvm/x86.c
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diff --git
a/arch/x86/kvm/x86.c
b/arch/x86/kvm/x86.c
index
1aa4d6e
..
81b7af5
100644
(file)
--- a/
arch/x86/kvm/x86.c
+++ b/
arch/x86/kvm/x86.c
@@
-1090,6
+1090,7
@@
int kvm_set_msr_common(struct kvm_vcpu *vcpu, u32 msr, u64 data)
break;
case MSR_K7_HWCR:
data &= ~(u64)0x40; /* ignore flush filter disable */
+ data &= ~(u64)0x100; /* ignore ignne emulation enable */
if (data != 0) {
pr_unimpl(vcpu, "unimplemented HWCR wrmsr: 0x%llx\n",
data);