1 files changed, 2 insertions, 0 deletions

diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c
index d2ddad9ca630..58cabb550afd 100644
--- a/arch/x86/kvm/svm.c
+++ b/arch/x86/kvm/svm.c
@@ -197,6 +197,7 @@ enum {
         VMCB_DT,         /* GDT, IDT */
         VMCB_SEG,        /* CS, DS, SS, ES, CPL */
         VMCB_CR2,        /* CR2 only */
+        VMCB_LBR,        /* DBGCTL, BR_FROM, BR_TO, LAST_EX_FROM, LAST_EX_TO */
         VMCB_DIRTY_MAX,
 };
 
@@ -2847,6 +2848,7 @@ static int svm_set_msr(struct kvm_vcpu *vcpu, unsigned ecx, u64 data)
                         return 1;
 
                 svm->vmcb->save.dbgctl = data;
+                mark_dirty(svm->vmcb, VMCB_LBR);
                 if (data & (1ULL<<0))
                         svm_enable_lbrv(svm);
                 else