commit 2f143240cb822c0d23ad591b89fe10e7c1f842f5
author Gleb Natapov <gleb@redhat.com> Mon Jan 21 15:36:42 2013 +0200
committer Marcelo Tosatti <mtosatti@redhat.com> Thu Jan 24 00:40:26 2013 -0200
tree 491859084b1a8dade55c24638fbebcf15c0ea493
parent 1f3141e80b149e7215313dff29e9a0c47811b1d1

KVM: VMX: reset CPL only on CS register write.

Signed-off-by: Gleb Natapov <gleb@redhat.com>
Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>

arch/x86/kvm/vmx.c

diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c
index 9d2ec88..edfbe94 100644
--- a/arch/x86/kvm/vmx.c
+++ b/arch/x86/kvm/vmx.c
@@ -3269,7 +3269,8 @@
 	const struct kvm_vmx_segment_field *sf = &kvm_vmx_segment_fields[seg];
 
 	vmx_segment_cache_clear(vmx);
-	__clear_bit(VCPU_EXREG_CPL, (ulong *)&vcpu->arch.regs_avail);
+	if (seg == VCPU_SREG_CS)
+		__clear_bit(VCPU_EXREG_CPL, (ulong *)&vcpu->arch.regs_avail);
 
 	if (vmx->rmode.vm86_active && seg != VCPU_SREG_LDTR) {
 		vmx->rmode.segs[seg] = *var;