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-rw-r--r--arch/x86/kvm/x86.c8
1 files changed, 6 insertions, 2 deletions
diff --git a/arch/x86/kvm/x86.c b/arch/x86/kvm/x86.c
index 98ae1fb9fd66..e260ccbc8f55 100644
--- a/arch/x86/kvm/x86.c
+++ b/arch/x86/kvm/x86.c
@@ -6596,8 +6596,12 @@ static int vcpu_enter_guest(struct kvm_vcpu *vcpu)
srcu_read_unlock(&vcpu->kvm->srcu, vcpu->srcu_idx);
- /* We should set ->mode before check ->requests,
- * see the comment in make_all_cpus_request.
+ /*
+ * We should set ->mode before check ->requests,
+ * Please see the comment in kvm_make_all_cpus_request.
+ * This also orders the write to mode from any reads
+ * to the page tables done while the VCPU is running.
+ * Please see the comment in kvm_flush_remote_tlbs.
*/
smp_mb__after_srcu_read_unlock();