diff --git a/disk/src/disk.rs b/disk/src/disk.rs
index 60e7e016e8..3956b9980a 100644
--- a/disk/src/disk.rs
+++ b/disk/src/disk.rs
@@ -25,10 +25,10 @@ use base::FileSync;
 use base::PunchHole;
 use base::WriteZeroesAt;
 use cros_async::AllocateMode;
+use cros_async::BackingMemory;
 use cros_async::Executor;
 use cros_async::IoSourceExt;
 use thiserror::Error as ThisError;
-use vm_memory::GuestMemory;
 
 mod qcow;
 pub use qcow::QcowFile;
@@ -318,7 +318,7 @@ pub trait AsyncDisk: DiskGetLen + FileSetLen + FileAllocate {
     async fn read_to_mem<'a>(
         &self,
         file_offset: u64,
-        mem: Arc<GuestMemory>,
+        mem: Arc<dyn BackingMemory + Send + Sync>,
         mem_offsets: &'a [cros_async::MemRegion],
     ) -> Result<usize>;
 
@@ -326,7 +326,7 @@ pub trait AsyncDisk: DiskGetLen + FileSetLen + FileAllocate {
     async fn write_from_mem<'a>(
         &self,
         file_offset: u64,
-        mem: Arc<GuestMemory>,
+        mem: Arc<dyn BackingMemory + Send + Sync>,
         mem_offsets: &'a [cros_async::MemRegion],
     ) -> Result<usize>;
 
@@ -381,7 +381,7 @@ impl AsyncDisk for SingleFileDisk {
     async fn read_to_mem<'a>(
         &self,
         file_offset: u64,
-        mem: Arc<GuestMemory>,
+        mem: Arc<dyn BackingMemory + Send + Sync>,
         mem_offsets: &'a [cros_async::MemRegion],
     ) -> Result<usize> {
         self.inner
@@ -393,7 +393,7 @@ impl AsyncDisk for SingleFileDisk {
     async fn write_from_mem<'a>(
         &self,
         file_offset: u64,
-        mem: Arc<GuestMemory>,
+        mem: Arc<dyn BackingMemory + Send + Sync>,
         mem_offsets: &'a [cros_async::MemRegion],
     ) -> Result<usize> {
         self.inner
diff --git a/disk/src/sys/unix.rs b/disk/src/sys/unix.rs
index 0b6aac387b..ec75eb723f 100644
--- a/disk/src/sys/unix.rs
+++ b/disk/src/sys/unix.rs
@@ -31,11 +31,7 @@ mod tests {
             let f = File::open("/dev/zero").unwrap();
             let async_file = SingleFileDisk::new(f, ex).unwrap();
             let result = async_file
-                .read_to_mem(
-                    0,
-                    Arc::clone(&guest_mem),
-                    &[MemRegion { offset: 0, len: 48 }],
-                )
+                .read_to_mem(0, guest_mem, &[MemRegion { offset: 0, len: 48 }])
                 .await;
             assert_eq!(48, result.unwrap());
         }
@@ -51,11 +47,7 @@ mod tests {
             let f = OpenOptions::new().write(true).open("/dev/null").unwrap();
             let async_file = SingleFileDisk::new(f, ex).unwrap();
             let result = async_file
-                .write_from_mem(
-                    0,
-                    Arc::clone(&guest_mem),
-                    &[MemRegion { offset: 0, len: 48 }],
-                )
+                .write_from_mem(0, guest_mem, &[MemRegion { offset: 0, len: 48 }])
                 .await;
             assert_eq!(48, result.unwrap());
         }