OvmfPkg/Xen: export AcpiTable installation into AcpiPlatformLib

This makes the function reuseable by bhyve.

Signed-off-by: Corvin Köhne <corvink@FreeBSD.org>
Reviewed-by: Anthony PERARD <anthony.perard@citrix.com>
Acked-by: Gerd Hoffmann <kraxel@redhat.com>

OvmfPkg/Include/Library/AcpiPlatformLib.h

@@ -4,6 +4,8 @@
   SPDX-License-Identifier: BSD-2-Clause-Patent
 **/
 
+#include <Protocol/AcpiTable.h>
+
 /**
   Searches and returns the address of the ACPI Root System Description Pointer (RSDP) in system memory.
 
@@ -22,3 +24,26 @@ GetAcpiRsdpFromMemory (
   IN UINT64                                         EndAddress,
   OUT EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER  **RsdpPtr
   );
+
+/**
+  Get Acpi tables from the RSDP structure. And installs ACPI tables
+  into the RSDT/XSDT using InstallAcpiTable. Some signature of the installed
+  ACPI tables are: FACP, APIC, HPET, WAET, SSDT, FACS, DSDT.
+
+  @param  AcpiProtocol           Protocol instance pointer.
+
+  @return EFI_SUCCESS            The table was successfully inserted.
+  @return EFI_INVALID_PARAMETER  Either AcpiTableBuffer is NULL, TableHandle is
+                                 NULL, or AcpiTableBufferSize and the size
+                                 field embedded in the ACPI table pointed to
+                                 by AcpiTableBuffer are not in sync.
+  @return EFI_OUT_OF_RESOURCES   Insufficient resources exist to complete the
+request.
+
+**/
+EFI_STATUS
+EFIAPI
+InstallAcpiTablesFromRsdp (
+  IN EFI_ACPI_TABLE_PROTOCOL                       *AcpiProtocol,
+  IN EFI_ACPI_2_0_ROOT_SYSTEM_DESCRIPTION_POINTER  *Rsdp
+  );