OvmfPkg/Include/Library/PlatformInitLib.h

   1 /** @file
   2   PlatformInitLib header file.
   3
   4   Copyright (c) 2021, Intel Corporation. All rights reserved.<BR>
   5   SPDX-License-Identifier: BSD-2-Clause-Patent
   6
   7 **/
   8
   9 #ifndef PLATFORM_INIT_LIB_H_
  10 #define PLATFORM_INIT_LIB_H_
  11
  12 #include <PiPei.h>
  13
  14 #pragma pack(1)
  15 typedef struct {
  16   EFI_HOB_GUID_TYPE    GuidHeader;
  17   UINT16               HostBridgeDevId;
  18
  19   UINT64               PcdConfidentialComputingGuestAttr;
  20   BOOLEAN              SevEsIsEnabled;
  21
  22   UINT32               BootMode;
  23   BOOLEAN              S3Supported;
  24
  25   BOOLEAN              SmmSmramRequire;
  26   BOOLEAN              Q35SmramAtDefaultSmbase;
  27   UINT16               Q35TsegMbytes;
  28
  29   UINT64               FirstNonAddress;
  30   UINT8                PhysMemAddressWidth;
  31   UINT32               Uc32Base;
  32   UINT32               Uc32Size;
  33
  34   BOOLEAN              PcdSetNxForStack;
  35   UINT64               PcdTdxSharedBitMask;
  36
  37   UINT64               PcdPciMmio64Base;
  38   UINT64               PcdPciMmio64Size;
  39   UINT32               PcdPciMmio32Base;
  40   UINT32               PcdPciMmio32Size;
  41   UINT64               PcdPciIoBase;
  42   UINT64               PcdPciIoSize;
  43
  44   UINT64               PcdEmuVariableNvStoreReserved;
  45   UINT32               PcdCpuBootLogicalProcessorNumber;
  46   UINT32               PcdCpuMaxLogicalProcessorNumber;
  47   UINT32               DefaultMaxCpuNumber;
  48
  49   UINT32               S3AcpiReservedMemoryBase;
  50   UINT32               S3AcpiReservedMemorySize;
  51 } EFI_HOB_PLATFORM_INFO;
  52 #pragma pack()
  53
  54 /**
  55   Reads 8-bits of CMOS data.
  56
  57   Reads the 8-bits of CMOS data at the location specified by Index.
  58   The 8-bit read value is returned.
  59
  60   @param  Index  The CMOS location to read.
  61
  62   @return The value read.
  63
  64 **/
  65 UINT8
  66 EFIAPI
  67 PlatformCmosRead8 (
  68   IN      UINTN  Index
  69   );
  70
  71 /**
  72   Writes 8-bits of CMOS data.
  73
  74   Writes 8-bits of CMOS data to the location specified by Index
  75   with the value specified by Value and returns Value.
  76
  77   @param  Index  The CMOS location to write.
  78   @param  Value  The value to write to CMOS.
  79
  80   @return The value written to CMOS.
  81
  82 **/
  83 UINT8
  84 EFIAPI
  85 PlatformCmosWrite8 (
  86   IN      UINTN  Index,
  87   IN      UINT8  Value
  88   );
  89
  90 /**
  91    Dump the CMOS content
  92  */
  93 VOID
  94 EFIAPI
  95 PlatformDebugDumpCmos (
  96   VOID
  97   );
  98
  99 #endif // PLATFORM_INIT_LIB_H_