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KVM: nSVM: Do not report CLTS via SVM_EXIT_WRITE_CR0 to L1

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CLTS only changes TS which is not monitored by selected CR0
interception. So skip any attempt to translate WRITE_CR0 to
CR0_SEL_WRITE for this instruction.

Signed-off-by: Jan Kiszka <jan.kiszka@siemens.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Jan Kiszka 2014-06-29 21:55:53 +02:00 committed by Paolo Bonzini
parent 9f6226a762
commit 62baf44cad
1 changed files with 2 additions and 1 deletions
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arch/x86/kvm/svm.c
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@ -4205,7 +4205,8 @@ static int svm_check_intercept(struct kvm_vcpu *vcpu,
if (info->intercept == x86_intercept_cr_write)
icpt_info.exit_code += info->modrm_reg;
if (icpt_info.exit_code != SVM_EXIT_WRITE_CR0)
if (icpt_info.exit_code != SVM_EXIT_WRITE_CR0 ||
info->intercept == x86_intercept_clts)
break;
intercept = svm->nested.intercept;