diff --git a/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c b/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c
index 66dcf88585..daf2bf3f45 100644
--- a/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c
+++ b/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.c
@@ -14,24 +14,6 @@
 
 #include "AcpiPlatform.h"
 
-EFI_STATUS
-EFIAPI
-InstallAcpiTable (
-  IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol,
-  IN   VOID                          *AcpiTableBuffer,
-  IN   UINTN                         AcpiTableBufferSize,
-  OUT  UINTN                         *TableKey
-  )
-{
-  return AcpiProtocol->InstallAcpiTable (
-                         AcpiProtocol,
-                         AcpiTableBuffer,
-                         AcpiTableBufferSize,
-                         TableKey
-                         );
-}
-
-
 /**
   Locate the first instance of a protocol.  If the protocol requested is an
   FV protocol, then it will return the first FV that contains the ACPI table
@@ -200,12 +182,12 @@ InstallOvmfFvTables (
       //
       // Install ACPI table
       //
-      Status = InstallAcpiTable (
-                 AcpiTable,
-                 CurrentTable,
-                 TableSize,
-                 &TableHandle
-                 );
+      Status = AcpiTable->InstallAcpiTable (
+                            AcpiTable,
+                            CurrentTable,
+                            TableSize,
+                            &TableHandle
+                            );
 
       //
       // Free memory allocated by ReadSection
diff --git a/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.h b/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.h
index 2959ff0be6..47d9769ed1 100644
--- a/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.h
+++ b/OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.h
@@ -12,15 +12,6 @@
 
 #include <Protocol/AcpiTable.h> // EFI_ACPI_TABLE_PROTOCOL
 
-EFI_STATUS
-EFIAPI
-InstallAcpiTable (
-  IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol,
-  IN   VOID                          *AcpiTableBuffer,
-  IN   UINTN                         AcpiTableBufferSize,
-  OUT  UINTN                         *TableKey
-  );
-
 EFI_STATUS
 EFIAPI
 InstallXenTables (
diff --git a/OvmfPkg/XenAcpiPlatformDxe/Xen.c b/OvmfPkg/XenAcpiPlatformDxe/Xen.c
index e8395db548..151376176f 100644
--- a/OvmfPkg/XenAcpiPlatformDxe/Xen.c
+++ b/OvmfPkg/XenAcpiPlatformDxe/Xen.c
@@ -185,12 +185,12 @@ InstallXenTables (
       //
       // Install the XSDT tables
       //
-      Status = InstallAcpiTable (
-                 AcpiProtocol,
-                 CurrentTable,
-                 CurrentTable->Length,
-                 &TableHandle
-                 );
+      Status = AcpiProtocol->InstallAcpiTable (
+                               AcpiProtocol,
+                               CurrentTable,
+                               CurrentTable->Length,
+                               &TableHandle
+                               );
 
       if (EFI_ERROR (Status)) {
         return Status;
@@ -235,12 +235,12 @@ InstallXenTables (
       //
       // Install the RSDT tables
       //
-      Status = InstallAcpiTable (
-                 AcpiProtocol,
-                 CurrentTable,
-                 CurrentTable->Length,
-                 &TableHandle
-                 );
+      Status = AcpiProtocol->InstallAcpiTable (
+                               AcpiProtocol,
+                               CurrentTable,
+                               CurrentTable->Length,
+                               &TableHandle
+                               );
 
       if (EFI_ERROR (Status)) {
         return Status;
@@ -266,12 +266,12 @@ InstallXenTables (
     //
     // FACS 2.0
     //
-    Status = InstallAcpiTable (
-               AcpiProtocol,
-               Facs2Table,
-               Facs2Table->Length,
-               &TableHandle
-               );
+    Status = AcpiProtocol->InstallAcpiTable (
+                             AcpiProtocol,
+                             Facs2Table,
+                             Facs2Table->Length,
+                             &TableHandle
+                             );
     if (EFI_ERROR (Status)) {
       return Status;
     }
@@ -280,12 +280,12 @@ InstallXenTables (
     //
     // FACS 1.0
     //
-    Status = InstallAcpiTable (
-               AcpiProtocol,
-               Facs1Table,
-               Facs1Table->Length,
-               &TableHandle
-               );
+    Status = AcpiProtocol->InstallAcpiTable (
+                             AcpiProtocol,
+                             Facs1Table,
+                             Facs1Table->Length,
+                             &TableHandle
+                             );
     if (EFI_ERROR (Status)) {
       return Status;
     }
@@ -301,12 +301,12 @@ InstallXenTables (
     CpuDeadLoop ();
   }
 
-  Status = InstallAcpiTable (
-             AcpiProtocol,
-             DsdtTable,
-             DsdtTable->Length,
-             &TableHandle
-             );
+  Status = AcpiProtocol->InstallAcpiTable (
+                           AcpiProtocol,
+                           DsdtTable,
+                           DsdtTable->Length,
+                           &TableHandle
+                           );
   if (EFI_ERROR (Status)) {
     return Status;
   }