diff --git a/vmm/src/device_manager.rs b/vmm/src/device_manager.rs
index fce8cb231..7e12b5aaa 100644
--- a/vmm/src/device_manager.rs
+++ b/vmm/src/device_manager.rs
@@ -590,7 +590,7 @@ impl DeviceRelocation for AddressManager {
                 if let Some(mut shm_regions) = virtio_dev.get_shm_regions() {
                     if shm_regions.addr.raw_value() == old_base {
                         // Remove old region from KVM by passing a size of 0.
-                        let mut mem_region = hypervisor::kvm::kvm_userspace_memory_region {
+                        let mut mem_region = hypervisor::MemoryRegion {
                             slot: shm_regions.mem_slot,
                             guest_phys_addr: old_base,
                             memory_size: 0,
diff --git a/vmm/src/memory_manager.rs b/vmm/src/memory_manager.rs
index 14b1bb95e..5e59b4956 100644
--- a/vmm/src/memory_manager.rs
+++ b/vmm/src/memory_manager.rs
@@ -13,8 +13,6 @@ use arch::{get_host_cpu_phys_bits, layout, RegionType};
 use devices::ioapic;
 use devices::BusDevice;
 
-use hypervisor::kvm::{kvm_userspace_memory_region, KVM_MEM_READONLY};
-
 use std::convert::TryInto;
 use std::ffi;
 use std::fs::{File, OpenOptions};
@@ -678,12 +676,16 @@ impl MemoryManager {
         readonly: bool,
     ) -> Result<u32, Error> {
         let slot = self.allocate_kvm_memory_slot();
-        let mem_region = kvm_userspace_memory_region {
+        let mem_region = hypervisor::MemoryRegion {
             slot,
             guest_phys_addr,
             memory_size,
             userspace_addr,
-            flags: if readonly { KVM_MEM_READONLY } else { 0 },
+            flags: if readonly {
+                hypervisor::kvm::KVM_MEM_READONLY
+            } else {
+                0
+            },
         };
 
         self.fd
@@ -731,7 +733,7 @@ impl MemoryManager {
         mergeable: bool,
         slot: u32,
     ) -> Result<(), Error> {
-        let mem_region = kvm_userspace_memory_region {
+        let mem_region = hypervisor::MemoryRegion {
             slot,
             guest_phys_addr,
             memory_size: 0,
diff --git a/vmm/src/vm.rs b/vmm/src/vm.rs
index a7cd204d8..a0d2cbf5c 100644
--- a/vmm/src/vm.rs
+++ b/vmm/src/vm.rs
@@ -1451,7 +1451,7 @@ pub fn test_vm() {
     let vm_fd = hv.create_vm().expect("new VM fd creation failed");
 
     mem.with_regions(|index, region| {
-        let mem_region = hypervisor::kvm_userspace_memory_region {
+        let mem_region = hypervisor::MemoryRegion {
             slot: index as u32,
             guest_phys_addr: region.start_addr().raw_value(),
             memory_size: region.len() as u64,