[PATCH 1/3] KVM: X86: Set RTM for DB_VECTOR too for KVM_EXIT_DEBUG

Peter Xu
2020-05-05T20:50:09Z

RTM should always been set even with KVM_EXIT_DEBUG on #DB.

Signed-off-by: Peter Xu <peterx@redhat.com>
---
arch/x86/kvm/vmx/vmx.c | 2 +-
1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/arch/x86/kvm/vmx/vmx.c b/arch/x86/kvm/vmx/vmx.c
index c2c6335a998c..05ed3e707ec6 100644
--- a/arch/x86/kvm/vmx/vmx.c
+++ b/arch/x86/kvm/vmx/vmx.c
@@ -4685,7 +4685,7 @@ static int handle_exception_nmi(struct kvm_vcpu *vcpu)
kvm_queue_exception(vcpu, DB_VECTOR);
return 1;
}
- kvm_run->debug.arch.dr6 = dr6 | DR6_FIXED_1;
+ kvm_run->debug.arch.dr6 = dr6 | DR6_FIXED_1 | DR6_RTM;
kvm_run->debug.arch.dr7 = vmcs_readl(GUEST_DR7);
/* fall through */
case BP_VECTOR:
--
2.26.2