memory: emulate ioeventfd

[mirror_qemu.git] / kvm-all.c

diff --git a/kvm-all.c b/kvm-all.c
index a45c92bd1ccfeda9595429252a978587a500a607..ed707fe580be4c6cb1e1b2aa054e77db7ae7f49c 100644 (file)
--- a/kvm-all.c
+++ b/kvm-all.c
@@ -1628,8 +1628,10 @@ static int kvm_init(MachineState *ms)
 
     kvm_state = s;
 
-    s->memory_listener.listener.eventfd_add = kvm_mem_ioeventfd_add;
-    s->memory_listener.listener.eventfd_del = kvm_mem_ioeventfd_del;
+    if (kvm_eventfds_allowed) {
+        s->memory_listener.listener.eventfd_add = kvm_mem_ioeventfd_add;
+        s->memory_listener.listener.eventfd_del = kvm_mem_ioeventfd_del;
+    }
     s->memory_listener.listener.coalesced_mmio_add = kvm_coalesce_mmio_region;
     s->memory_listener.listener.coalesced_mmio_del = kvm_uncoalesce_mmio_region;