diff --git a/virtio-devices/src/device.rs b/virtio-devices/src/device.rs
index 604368522..201709297 100644
--- a/virtio-devices/src/device.rs
+++ b/virtio-devices/src/device.rs
@@ -139,10 +139,6 @@ pub trait VirtioDevice: Send {
     /// after a shutdown() can lead to unpredictable results.
     fn shutdown(&mut self) {}
 
-    fn update_memory(&mut self, _mem: &GuestMemoryMmap) -> std::result::Result<(), Error> {
-        Ok(())
-    }
-
     fn add_memory_region(
         &mut self,
         _region: &Arc<GuestRegionMmap>,
diff --git a/virtio-devices/src/vhost_user/blk.rs b/virtio-devices/src/vhost_user/blk.rs
index c0772a507..3a402ded5 100644
--- a/virtio-devices/src/vhost_user/blk.rs
+++ b/virtio-devices/src/vhost_user/blk.rs
@@ -315,10 +315,6 @@ impl VirtioDevice for Blk {
         let _ = unsafe { libc::close(self.vhost_user_blk.as_raw_fd()) };
     }
 
-    fn update_memory(&mut self, mem: &GuestMemoryMmap) -> std::result::Result<(), crate::Error> {
-        update_mem_table(&mut self.vhost_user_blk, mem).map_err(crate::Error::VhostUserUpdateMemory)
-    }
-
     fn add_memory_region(
         &mut self,
         region: &Arc<GuestRegionMmap>,
diff --git a/virtio-devices/src/vhost_user/fs.rs b/virtio-devices/src/vhost_user/fs.rs
index 831a9ecde..89be3d13c 100644
--- a/virtio-devices/src/vhost_user/fs.rs
+++ b/virtio-devices/src/vhost_user/fs.rs
@@ -557,10 +557,6 @@ impl VirtioDevice for Fs {
         }
     }
 
-    fn update_memory(&mut self, mem: &GuestMemoryMmap) -> std::result::Result<(), crate::Error> {
-        update_mem_table(&mut self.vu, mem).map_err(crate::Error::VhostUserUpdateMemory)
-    }
-
     fn add_memory_region(
         &mut self,
         region: &Arc<GuestRegionMmap>,
diff --git a/virtio-devices/src/vhost_user/net.rs b/virtio-devices/src/vhost_user/net.rs
index debe6ef08..4038821d3 100644
--- a/virtio-devices/src/vhost_user/net.rs
+++ b/virtio-devices/src/vhost_user/net.rs
@@ -373,10 +373,6 @@ impl VirtioDevice for Net {
         let _ = unsafe { libc::close(self.vhost_user_net.as_raw_fd()) };
     }
 
-    fn update_memory(&mut self, mem: &GuestMemoryMmap) -> std::result::Result<(), crate::Error> {
-        update_mem_table(&mut self.vhost_user_net, mem).map_err(crate::Error::VhostUserUpdateMemory)
-    }
-
     fn add_memory_region(
         &mut self,
         region: &Arc<GuestRegionMmap>,