This patch adds checking for read and write intercepts from/to DRx registers from the KVM instruction emulator path. Signed-off-by: Joerg Roedel <joerg.roedel@xxxxxxx> --- arch/x86/kvm/svm.c | 6 ++++++ 1 files changed, 6 insertions(+), 0 deletions(-) diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index 29f0491..16ff569 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -3669,6 +3669,9 @@ static int svm_insn_intercepted(struct kvm_vcpu *vcpu, case 0x20: /* CR read */ vmcb->control.exit_code = SVM_EXIT_READ_CR0 + c->modrm_reg; break; + case 0x21: + vmcb->control.exit_code = SVM_EXIT_READ_DR0 + c->modrm_reg; + break; case 0x22: /* CR write */ vmcb->control.exit_code = SVM_EXIT_WRITE_CR0 + c->modrm_reg; if (c->modrm_reg == 0 && @@ -3683,6 +3686,9 @@ static int svm_insn_intercepted(struct kvm_vcpu *vcpu, vmcb->control.exit_code = SVM_EXIT_CR0_SEL_WRITE; } break; + case 0x23: + vmcb->control.exit_code = SVM_EXIT_WRITE_DR0 + c->modrm_reg; + break; } vmcb->control.next_rip = ctxt->eip; -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe kvm" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
