diff --git a/OvmfPkg/VirtioGpuDxe/Commands.c b/OvmfPkg/VirtioGpuDxe/Commands.c
index bdedea1df6..c1951a807e 100644
--- a/OvmfPkg/VirtioGpuDxe/Commands.c
+++ b/OvmfPkg/VirtioGpuDxe/Commands.c
@@ -496,10 +496,10 @@ VirtioGpuResourceUnref (
 
 EFI_STATUS
 VirtioGpuResourceAttachBacking (
-  IN OUT VGPU_DEV *VgpuDev,
-  IN     UINT32   ResourceId,
-  IN     VOID     *FirstBackingPage,
-  IN     UINTN    NumberOfPages
+  IN OUT VGPU_DEV             *VgpuDev,
+  IN     UINT32               ResourceId,
+  IN     EFI_PHYSICAL_ADDRESS BackingStoreDeviceAddress,
+  IN     UINTN                NumberOfPages
   )
 {
   volatile VIRTIO_GPU_RESOURCE_ATTACH_BACKING Request;
@@ -510,7 +510,7 @@ VirtioGpuResourceAttachBacking (
 
   Request.ResourceId    = ResourceId;
   Request.NrEntries     = 1;
-  Request.Entry.Addr    = (UINTN)FirstBackingPage;
+  Request.Entry.Addr    = BackingStoreDeviceAddress;
   Request.Entry.Length  = (UINT32)EFI_PAGES_TO_SIZE (NumberOfPages);
   Request.Entry.Padding = 0;
 
diff --git a/OvmfPkg/VirtioGpuDxe/Gop.c b/OvmfPkg/VirtioGpuDxe/Gop.c
index 3438bd0322..b3c5dae74d 100644
--- a/OvmfPkg/VirtioGpuDxe/Gop.c
+++ b/OvmfPkg/VirtioGpuDxe/Gop.c
@@ -313,10 +313,10 @@ GopSetMode (
   // Attach backing store to the host resource.
   //
   Status = VirtioGpuResourceAttachBacking (
-             VgpuGop->ParentBus, // VgpuDev
-             NewResourceId,      // ResourceId
-             NewBackingStore,    // FirstBackingPage
-             NewNumberOfPages    // NumberOfPages
+             VgpuGop->ParentBus,           // VgpuDev
+             NewResourceId,                // ResourceId
+             (UINTN)NewBackingStore,       // BackingStoreDeviceAddress
+             NewNumberOfPages              // NumberOfPages
              );
   if (EFI_ERROR (Status)) {
     goto FreeBackingStore;
diff --git a/OvmfPkg/VirtioGpuDxe/VirtioGpu.h b/OvmfPkg/VirtioGpuDxe/VirtioGpu.h
index 193e932e14..cf2a63accd 100644
--- a/OvmfPkg/VirtioGpuDxe/VirtioGpu.h
+++ b/OvmfPkg/VirtioGpuDxe/VirtioGpu.h
@@ -252,10 +252,10 @@ VirtioGpuResourceUnref (
 
 EFI_STATUS
 VirtioGpuResourceAttachBacking (
-  IN OUT VGPU_DEV *VgpuDev,
-  IN     UINT32   ResourceId,
-  IN     VOID     *FirstBackingPage,
-  IN     UINTN    NumberOfPages
+  IN OUT VGPU_DEV             *VgpuDev,
+  IN     UINT32               ResourceId,
+  IN     EFI_PHYSICAL_ADDRESS BackingStoreDeviceAddress,
+  IN     UINTN                NumberOfPages
   );
 
 EFI_STATUS