OvmfPkg/XenAcpiPlatformDxe/EntryPoint.c

   1 /** @file
   2   Entry point of OVMF ACPI Platform Driver for Xen guests
   3
   4   Copyright (C) 2015-2021, Red Hat, Inc.
   5   Copyright (c) 2008 - 2015, Intel Corporation. All rights reserved.<BR>
   6
   7   SPDX-License-Identifier: BSD-2-Clause-Patent
   8 **/
   9
  10 #include <Library/DebugLib.h>                    // ASSERT_EFI_ERROR()
  11 #include <Library/UefiBootServicesTableLib.h>    // gBS
  12 #include <Protocol/AcpiTable.h>                  // EFI_ACPI_TABLE_PROTOCOL
  13
  14 #include "AcpiPlatform.h"
  15
  16 STATIC
  17 EFI_ACPI_TABLE_PROTOCOL *
  18 FindAcpiTableProtocol (
  19   VOID
  20   )
  21 {
  22   EFI_STATUS               Status;
  23   EFI_ACPI_TABLE_PROTOCOL  *AcpiTable;
  24
  25   Status = gBS->LocateProtocol (
  26                   &gEfiAcpiTableProtocolGuid,
  27                   NULL,
  28                   (VOID **)&AcpiTable
  29                   );
  30   ASSERT_EFI_ERROR (Status);
  31   return AcpiTable;
  32 }
  33
  34 EFI_STATUS
  35 EFIAPI
  36 AcpiPlatformEntryPoint (
  37   IN EFI_HANDLE        ImageHandle,
  38   IN EFI_SYSTEM_TABLE  *SystemTable
  39   )
  40 {
  41   return InstallAcpiTables (FindAcpiTableProtocol ());
  42 }