OvmfPkg/XenAcpiPlatformDxe/AcpiPlatform.h

   1 /** @file
   2   OVMF ACPI Platform Driver for Xen guests
   3
   4   Copyright (C) 2021, Red Hat, Inc.
   5   Copyright (c) 2008 - 2012, Intel Corporation. All rights reserved.<BR>
   6   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #ifndef ACPI_PLATFORM_H_
  11 #define ACPI_PLATFORM_H_
  12
  13 #include <Protocol/AcpiTable.h> // EFI_ACPI_TABLE_PROTOCOL
  14 #include <Protocol/PciIo.h>     // EFI_PCI_IO_PROTOCOL
  15
  16 typedef struct {
  17   EFI_PCI_IO_PROTOCOL *PciIo;
  18   UINT64              PciAttributes;
  19 } ORIGINAL_ATTRIBUTES;
  20
  21 typedef struct S3_CONTEXT S3_CONTEXT;
  22
  23 EFI_STATUS
  24 EFIAPI
  25 InstallAcpiTable (
  26   IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol,
  27   IN   VOID                          *AcpiTableBuffer,
  28   IN   UINTN                         AcpiTableBufferSize,
  29   OUT  UINTN                         *TableKey
  30   );
  31
  32 BOOLEAN
  33 QemuDetected (
  34   VOID
  35   );
  36
  37 EFI_STATUS
  38 EFIAPI
  39 QemuInstallAcpiTable (
  40   IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol,
  41   IN   VOID                          *AcpiTableBuffer,
  42   IN   UINTN                         AcpiTableBufferSize,
  43   OUT  UINTN                         *TableKey
  44   );
  45
  46 EFI_STATUS
  47 EFIAPI
  48 InstallXenTables (
  49   IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol
  50   );
  51
  52 EFI_STATUS
  53 EFIAPI
  54 InstallQemuFwCfgTables (
  55   IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiProtocol
  56   );
  57
  58 EFI_STATUS
  59 EFIAPI
  60 InstallAcpiTables (
  61   IN   EFI_ACPI_TABLE_PROTOCOL       *AcpiTable
  62   );
  63
  64 VOID
  65 EnablePciDecoding (
  66   OUT ORIGINAL_ATTRIBUTES **OriginalAttributes,
  67   OUT UINTN               *Count
  68   );
  69
  70 VOID
  71 RestorePciDecoding (
  72   IN ORIGINAL_ATTRIBUTES *OriginalAttributes,
  73   IN UINTN               Count
  74   );
  75
  76 EFI_STATUS
  77 AllocateS3Context (
  78   OUT S3_CONTEXT **S3Context,
  79   IN  UINTN      WritePointerCount
  80   );
  81
  82 VOID
  83 ReleaseS3Context (
  84   IN S3_CONTEXT *S3Context
  85   );
  86
  87 EFI_STATUS
  88 SaveCondensedWritePointerToS3Context (
  89   IN OUT S3_CONTEXT *S3Context,
  90   IN     UINT16     PointerItem,
  91   IN     UINT8      PointerSize,
  92   IN     UINT32     PointerOffset,
  93   IN     UINT64     PointerValue
  94   );
  95
  96 EFI_STATUS
  97 TransferS3ContextToBootScript (
  98   IN S3_CONTEXT *S3Context
  99   );
 100
 101 #endif
 102