The corresponding code was added for VMX in commit 42dbaa5a057 ("KVM: x86: Virtualize debug registers, 2008-12-15) but never for AMD. Fix this.

Cc: stable@vger.kernel.org Fixes: 42dbaa5a057 ("KVM: x86: Virtualize debug registers") Signed-off-by: Paolo Bonzini pbonzini@redhat.com --- arch/x86/kvm/svm/svm.c | 2 ++ 1 file changed, 2 insertions(+)

diff --git a/arch/x86/kvm/svm/svm.c b/arch/x86/kvm/svm/svm.c index 8447ceb02c74..dbcf4198a9fe 100644 --- a/arch/x86/kvm/svm/svm.c +++ b/arch/x86/kvm/svm/svm.c @@ -1732,6 +1732,8 @@ static int db_interception(struct vcpu_svm *svm) if (svm->vcpu.guest_debug & (KVM_GUESTDBG_SINGLESTEP | KVM_GUESTDBG_USE_HW_BP)) { kvm_run->exit_reason = KVM_EXIT_DEBUG; + kvm_run->debug.arch.dr6 = svm->vmcb->save.dr6; + kvm_run->debug.arch.dr7 = svm->vmcb->save.dr7; kvm_run->debug.arch.pc = svm->vmcb->save.cs.base + svm->vmcb->save.rip; kvm_run->debug.arch.exception = DB_VECTOR;