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Subject[PATCH 07/44] KVM: Fix cpuid leaf 0xb loop termination
Date
From: Nitin A Kamble <nitin.a.kamble@intel.com>

For cpuid leaf 0xb the bits 8-15 in ECX register define the end of counting
leaf. The previous code was using bits 0-7 for this purpose, which is
a bug.

Signed-off-by: Nitin A Kamble <nitin.a.kamble@intel.com>
Signed-off-by: Avi Kivity <avi@redhat.com>
---
arch/x86/kvm/x86.c | 2 +-
1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 9a4a39c..2889a0f 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -1276,7 +1276,7 @@ static void do_cpuid_ent(struct kvm_cpuid_entry2 *entry, u32 function,
entry->flags |= KVM_CPUID_FLAG_SIGNIFCANT_INDEX;
/* read more entries until level_type is zero */
for (i = 1; *nent < maxnent; ++i) {
- level_type = entry[i - 1].ecx & 0xff;
+ level_type = entry[i - 1].ecx & 0xff00;
if (!level_type)
break;
do_cpuid_1_ent(&entry[i], function, i);
--
1.6.0.3


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