diff --git a/vfio/src/vfio_device.rs b/vfio/src/vfio_device.rs
index 2bab89e8b..2e5e1a37b 100644
--- a/vfio/src/vfio_device.rs
+++ b/vfio/src/vfio_device.rs
@@ -513,14 +513,18 @@ pub struct VfioDevice {
     group: VfioGroup,
     regions: Vec<VfioRegion>,
     irqs: HashMap<u32, VfioIrq>,
-    mem: GuestMemoryMmap,
+    mem: Arc<GuestMemoryMmap>,
 }
 
 impl VfioDevice {
     /// Create a new vfio device, then guest read/write on this device could be
     /// transfered into kernel vfio.
     /// sysfspath specify the vfio device path in sys file system.
-    pub fn new(sysfspath: &Path, device_fd: Arc<DeviceFd>, mem: GuestMemoryMmap) -> Result<Self> {
+    pub fn new(
+        sysfspath: &Path,
+        device_fd: Arc<DeviceFd>,
+        mem: Arc<GuestMemoryMmap>,
+    ) -> Result<Self> {
         let uuid_path: PathBuf = [sysfspath, Path::new("iommu_group")].iter().collect();
         let group_path = uuid_path.read_link().map_err(|_| VfioError::InvalidPath)?;
         let group_osstr = group_path.file_name().ok_or(VfioError::InvalidPath)?;
diff --git a/vm-virtio/src/block.rs b/vm-virtio/src/block.rs
index c1901fa1a..649f5d25a 100755
--- a/vm-virtio/src/block.rs
+++ b/vm-virtio/src/block.rs
@@ -321,7 +321,7 @@ impl Request {
 
 struct BlockEpollHandler<T: DiskFile> {
     queues: Vec<Queue>,
-    mem: GuestMemoryMmap,
+    mem: Arc<GuestMemoryMmap>,
     disk_image: T,
     disk_nsectors: u64,
     interrupt_cb: Arc<VirtioInterrupt>,
@@ -610,7 +610,7 @@ impl<T: 'static + DiskFile + Send> VirtioDevice for Block<T> {
 
     fn activate(
         &mut self,
-        mem: GuestMemoryMmap,
+        mem: Arc<GuestMemoryMmap>,
         interrupt_cb: Arc<VirtioInterrupt>,
         queues: Vec<Queue>,
         mut queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/console.rs b/vm-virtio/src/console.rs
index abd6601b3..38cefcaa4 100755
--- a/vm-virtio/src/console.rs
+++ b/vm-virtio/src/console.rs
@@ -54,7 +54,7 @@ unsafe impl ByteValued for VirtioConsoleConfig {}
 
 struct ConsoleEpollHandler {
     queues: Vec<Queue>,
-    mem: GuestMemoryMmap,
+    mem: Arc<GuestMemoryMmap>,
     interrupt_cb: Arc<VirtioInterrupt>,
     in_buffer: Arc<Mutex<VecDeque<u8>>>,
     out: Box<dyn io::Write + Send>,
@@ -432,7 +432,7 @@ impl VirtioDevice for Console {
 
     fn activate(
         &mut self,
-        mem: GuestMemoryMmap,
+        mem: Arc<GuestMemoryMmap>,
         interrupt_cb: Arc<VirtioInterrupt>,
         queues: Vec<Queue>,
         mut queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/device.rs b/vm-virtio/src/device.rs
index 63041b6b4..f93b9b168 100644
--- a/vm-virtio/src/device.rs
+++ b/vm-virtio/src/device.rs
@@ -67,7 +67,7 @@ pub trait VirtioDevice: Send {
     /// Activates this device for real usage.
     fn activate(
         &mut self,
-        mem: GuestMemoryMmap,
+        mem: Arc<GuestMemoryMmap>,
         interrupt_evt: Arc<VirtioInterrupt>,
         queues: Vec<Queue>,
         queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/fs.rs b/vm-virtio/src/fs.rs
index 0e7a894ff..9fcef9878 100644
--- a/vm-virtio/src/fs.rs
+++ b/vm-virtio/src/fs.rs
@@ -368,7 +368,7 @@ impl Fs {
 
     fn setup_vu(
         &mut self,
-        mem: &GuestMemoryMmap,
+        mem: &Arc<GuestMemoryMmap>,
         queues: Vec<Queue>,
         queue_evts: Vec<EventFd>,
     ) -> Result<Vec<(EventFd, Queue)>> {
@@ -527,7 +527,7 @@ impl VirtioDevice for Fs {
 
     fn activate(
         &mut self,
-        mem: GuestMemoryMmap,
+        mem: Arc<GuestMemoryMmap>,
         interrupt_cb: Arc<VirtioInterrupt>,
         queues: Vec<Queue>,
         queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/net.rs b/vm-virtio/src/net.rs
index d90edd61b..b8ab8170e 100644
--- a/vm-virtio/src/net.rs
+++ b/vm-virtio/src/net.rs
@@ -115,7 +115,7 @@ fn vnet_hdr_len() -> usize {
 }
 
 struct NetEpollHandler {
-    mem: GuestMemoryMmap,
+    mem: Arc<GuestMemoryMmap>,
     tap: Tap,
     rx: RxVirtio,
     tx: TxVirtio,
@@ -572,7 +572,7 @@ impl VirtioDevice for Net {
 
     fn activate(
         &mut self,
-        mem: GuestMemoryMmap,
+        mem: Arc<GuestMemoryMmap>,
         interrupt_cb: Arc<VirtioInterrupt>,
         mut queues: Vec<Queue>,
         mut queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/pmem.rs b/vm-virtio/src/pmem.rs
index ada32c8b2..8e5a1079d 100644
--- a/vm-virtio/src/pmem.rs
+++ b/vm-virtio/src/pmem.rs
@@ -154,7 +154,7 @@ impl Request {
 
 struct PmemEpollHandler {
     queue: Queue,
-    mem: GuestMemoryMmap,
+    mem: Arc<GuestMemoryMmap>,
     disk: File,
     interrupt_cb: Arc<VirtioInterrupt>,
     queue_evt: EventFd,
@@ -382,7 +382,7 @@ impl VirtioDevice for Pmem {
 
     fn activate(
         &mut self,
-        mem: GuestMemoryMmap,
+        mem: Arc<GuestMemoryMmap>,
         interrupt_cb: Arc<VirtioInterrupt>,
         mut queues: Vec<Queue>,
         mut queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/rng.rs b/vm-virtio/src/rng.rs
index ebd4ee0ea..da3095bb5 100755
--- a/vm-virtio/src/rng.rs
+++ b/vm-virtio/src/rng.rs
@@ -32,7 +32,7 @@ const KILL_EVENT: DeviceEventT = 1;
 
 struct RngEpollHandler {
     queues: Vec<Queue>,
-    mem: GuestMemoryMmap,
+    mem: Arc<GuestMemoryMmap>,
     random_file: File,
     interrupt_cb: Arc<VirtioInterrupt>,
     queue_evt: EventFd,
@@ -237,7 +237,7 @@ impl VirtioDevice for Rng {
 
     fn activate(
         &mut self,
-        mem: GuestMemoryMmap,
+        mem: Arc<GuestMemoryMmap>,
         interrupt_cb: Arc<VirtioInterrupt>,
         queues: Vec<Queue>,
         mut queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/transport/pci_common_config.rs b/vm-virtio/src/transport/pci_common_config.rs
index a3446f265..ad2e80480 100644
--- a/vm-virtio/src/transport/pci_common_config.rs
+++ b/vm-virtio/src/transport/pci_common_config.rs
@@ -271,7 +271,7 @@ mod tests {
         }
         fn activate(
             &mut self,
-            _mem: GuestMemoryMmap,
+            _mem: Arc<GuestMemoryMmap>,
             _interrupt_evt: Arc<VirtioInterrupt>,
             _queues: Vec<Queue>,
             _queue_evts: Vec<EventFd>,
diff --git a/vm-virtio/src/transport/pci_device.rs b/vm-virtio/src/transport/pci_device.rs
index 8332818f8..5f5fc0e3e 100755
--- a/vm-virtio/src/transport/pci_device.rs
+++ b/vm-virtio/src/transport/pci_device.rs
@@ -235,7 +235,7 @@ pub struct VirtioPciDevice {
     queue_evts: Vec<EventFd>,
 
     // Guest memory
-    memory: Option<GuestMemoryMmap>,
+    memory: Option<Arc<GuestMemoryMmap>>,
 
     // Setting PCI BAR
     settings_bar: u8,
@@ -244,7 +244,7 @@ pub struct VirtioPciDevice {
 impl VirtioPciDevice {
     /// Constructs a new PCI transport for the given virtio device.
     pub fn new(
-        memory: GuestMemoryMmap,
+        memory: Arc<GuestMemoryMmap>,
         device: Box<dyn VirtioDevice>,
         msix_num: u16,
     ) -> Result<Self> {
diff --git a/vmm/src/vm.rs b/vmm/src/vm.rs
index cc6c6d189..c1f79380e 100755
--- a/vmm/src/vm.rs
+++ b/vmm/src/vm.rs
@@ -518,7 +518,7 @@ impl Vcpu {
 }
 
 struct VmInfo<'a> {
-    memory: GuestMemoryMmap,
+    memory: &'a Arc<GuestMemoryMmap>,
     vm_fd: &'a Arc<VmFd>,
     vm_cfg: &'a VmConfig<'a>,
 }
@@ -697,7 +697,7 @@ impl DeviceManager {
                     .map_err(DeviceManagerError::CreateVirtioConsole)?;
             DeviceManager::add_virtio_pci_device(
                 Box::new(virtio_console_device),
-                vm_info.memory.clone(),
+                vm_info.memory,
                 allocator,
                 vm_info.vm_fd,
                 &mut pci,
@@ -812,7 +812,7 @@ impl DeviceManager {
 
                 DeviceManager::add_virtio_pci_device(
                     block,
-                    vm_info.memory.clone(),
+                    vm_info.memory,
                     allocator,
                     vm_info.vm_fd,
                     pci,
@@ -849,7 +849,7 @@ impl DeviceManager {
 
                 DeviceManager::add_virtio_pci_device(
                     Box::new(virtio_net_device),
-                    vm_info.memory.clone(),
+                    vm_info.memory,
                     allocator,
                     vm_info.vm_fd,
                     pci,
@@ -876,7 +876,7 @@ impl DeviceManager {
 
             DeviceManager::add_virtio_pci_device(
                 Box::new(virtio_rng_device),
-                vm_info.memory.clone(),
+                vm_info.memory,
                 allocator,
                 vm_info.vm_fd,
                 pci,
@@ -965,7 +965,7 @@ impl DeviceManager {
 
                     DeviceManager::add_virtio_pci_device(
                         Box::new(virtio_fs_device),
-                        vm_info.memory.clone(),
+                        vm_info.memory,
                         allocator,
                         vm_info.vm_fd,
                         pci,
@@ -1046,7 +1046,7 @@ impl DeviceManager {
 
                 DeviceManager::add_virtio_pci_device(
                     Box::new(virtio_pmem_device),
-                    vm_info.memory.clone(),
+                    vm_info.memory,
                     allocator,
                     vm_info.vm_fd,
                     pci,
@@ -1113,7 +1113,7 @@ impl DeviceManager {
 
     fn add_virtio_pci_device(
         virtio_device: Box<dyn vm_virtio::VirtioDevice>,
-        memory: GuestMemoryMmap,
+        memory: &Arc<GuestMemoryMmap>,
         allocator: &mut SystemAllocator,
         vm_fd: &Arc<VmFd>,
         pci: &mut PciConfigIo,
@@ -1126,7 +1126,7 @@ impl DeviceManager {
             0
         };
 
-        let mut virtio_pci_device = VirtioPciDevice::new(memory, virtio_device, msix_num)
+        let mut virtio_pci_device = VirtioPciDevice::new(memory.clone(), virtio_device, msix_num)
             .map_err(DeviceManagerError::VirtioDevice)?;
 
         let bars = virtio_pci_device
@@ -1317,7 +1317,7 @@ impl AsRawFd for EpollContext {
 pub struct Vm<'a> {
     fd: Arc<VmFd>,
     kernel: File,
-    memory: GuestMemoryMmap,
+    memory: Arc<GuestMemoryMmap>,
     vcpus: Vec<thread::JoinHandle<()>>,
     devices: DeviceManager,
     cpuid: CpuId,
@@ -1485,8 +1485,12 @@ impl<'a> Vm<'a> {
                 .ok_or(Error::MemoryRangeAllocation)?;
         }
 
+        // Convert the guest memory into an Arc. The point being able to use it
+        // anywhere in the code, no matter which thread might use it.
+        let guest_memory = Arc::new(guest_memory);
+
         let vm_info = VmInfo {
-            memory: guest_memory.clone(),
+            memory: &guest_memory,
             vm_fd: &fd,
             vm_cfg: &config,
         };
@@ -1533,7 +1537,7 @@ impl<'a> Vm<'a> {
         let cmdline_cstring =
             CString::new(self.config.cmdline.args.clone()).map_err(|_| Error::CmdLine)?;
         let entry_addr = match linux_loader::loader::Elf::load(
-            &self.memory,
+            self.memory.as_ref(),
             None,
             &mut self.kernel,
             Some(arch::HIMEM_START),
@@ -1541,7 +1545,7 @@ impl<'a> Vm<'a> {
             Ok(entry_addr) => entry_addr,
             Err(linux_loader::loader::Error::InvalidElfMagicNumber) => {
                 linux_loader::loader::BzImage::load(
-                    &self.memory,
+                    self.memory.as_ref(),
                     None,
                     &mut self.kernel,
                     Some(arch::HIMEM_START),
@@ -1552,7 +1556,7 @@ impl<'a> Vm<'a> {
         };
 
         linux_loader::loader::load_cmdline(
-            &self.memory,
+            self.memory.as_ref(),
             self.config.cmdline.offset,
             &cmdline_cstring,
         )