MdePkg/Include/Ppi/SecPlatformInformation.h

   1 /** @file
   2   This file declares Sec Platform Information PPI.
   3
   4   This service is the primary handoff state into the PEI Foundation.
   5   The Security (SEC) component creates the early, transitory memory
   6   environment and also encapsulates knowledge of at least the
   7   location of the Boot Firmware Volume (BFV).
   8
   9   Copyright (c) 2006 - 2008, Intel Corporation
  10   All rights reserved. This program and the accompanying materials
  11   are licensed and made available under the terms and conditions of the BSD License
  12   which accompanies this distribution.  The full text of the license may be found at
  13   http://opensource.org/licenses/bsd-license.php
  14
  15   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  16   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  17
  18   @par Revision Reference:
  19   This PPI is defined in PI.
  20   Version 1.00.
  21
  22 **/
  23
  24 #ifndef __SEC_PLATFORM_INFORMATION_PPI_H__
  25 #define __SEC_PLATFORM_INFORMATION_PPI_H__
  26
  27 #define EFI_SEC_PLATFORM_INFORMATION_GUID \
  28   { \
  29     0x6f8c2b35, 0xfef4, 0x448d, {0x82, 0x56, 0xe1, 0x1b, 0x19, 0xd6, 0x10, 0x77 } \
  30   }
  31
  32 typedef struct _EFI_SEC_PLATFORM_INFORMATION_PPI EFI_SEC_PLATFORM_INFORMATION_PPI;
  33
  34
  35 ///
  36 /// EFI_HEALTH_FLAGS
  37 /// Contains information generated by microcode, hardware, and/or the Itanium
  38 /// processor PAL code about the state of the processor upon reset.
  39 ///
  40 typedef union {
  41   struct {
  42     ///
  43     /// A 2-bit field indicating self-test state after reset.
  44     ///
  45     UINT32   Status                   : 2;
  46     ///
  47     /// A 1-bit field indicating whether testing has occurred.
  48     /// If this field is zero, the processor has not been tested,
  49     /// and no further fields in the self-test State parameter are valid.
  50     ///
  51     UINT32   Tested                   : 1;
  52     ///
  53     /// Reserved 13 bits.
  54     ///
  55     UINT32   Reserved1                :13;
  56     ///
  57     /// A 1-bit field. If set to 1, indicates that virtual
  58     /// memory features are not available.
  59     ///
  60     UINT32   VirtualMemoryUnavailable : 1;
  61     ///
  62     /// A 1-bit field. If set to 1, indicates that IA-32 execution
  63     /// is not available.
  64     ///
  65     UINT32   Ia32ExecutionUnavailable : 1;
  66     ///
  67     /// A 1-bit field. If set to 1, indicates that the floating
  68     /// point unit is not available.
  69     ///
  70     UINT32   FloatingPointUnavailable : 1;
  71     ///
  72     /// A 1-bit field. If set to 1, indicates miscellaneous
  73     /// functional failure other than vm, ia, or fp.
  74     /// The test status field provides additional information on
  75     /// test failures when the State field returns a value of
  76     /// performance restricted or functionally restricted.
  77     /// The value returned is implementation dependent.
  78     ///
  79     UINT32   MiscFeaturesUnavailable  : 1;
  80     ///
  81     /// Reserved 12 bits.
  82     ///
  83     UINT32   Reserved2                :12;
  84   } Bits;
  85   UINT32     Uint32;
  86 } EFI_HEALTH_FLAGS;
  87
  88 #define NORMAL_BOOT_CALL    0x0
  89 #define RECOVERY_CHECK_CALL 0x3
  90
  91 typedef struct {
  92   UINT8 BootPhase;
  93   UINT8 FWStatus;
  94   UINT16 Reserved1;
  95   UINT32 Reserved2;
  96
  97   UINT16 ProcId;
  98   UINT16 Reserved3;
  99   UINT8  IdMask;
 100   UINT8  EidMask;
 101   UINT16 Reserved4;
 102
 103   UINT64 PalCallAddress;
 104   UINT64 PalSpecialAddress;
 105   UINT64 SelfTestStatus;
 106   UINT64 SelfTestControl;
 107   UINT64 MemoryBufferRequired;
 108
 109 } IPF_HANDOFF_STATUS;
 110
 111 ///
 112 /// EFI_SEC_PLATFORM_INFORMATION_RECORD
 113 ///
 114 typedef struct {
 115   ///
 116   /// Contains information generated by microcode, hardware,
 117   /// and/or the Itanium processor PAL code about the state
 118   /// of the processor upon reset.
 119   ///
 120   EFI_HEALTH_FLAGS HealthFlags;
 121 } EFI_SEC_PLATFORM_INFORMATION_RECORD;
 122
 123
 124
 125 /**
 126   This interface conveys state information out of the Security (SEC) phase into PEI.
 127
 128   This service is published by the SEC phase. The SEC phase handoff has an optional
 129   EFI_PEI_PPI_DESCRIPTOR list as its final argument when control is passed from SEC into the
 130   PEI Foundation. As such, if the platform supports the built-in self test (BIST) on IA-32 Intel
 131   architecture or the PAL-A handoff state for Itanium architecture, this information is encapsulated
 132   into the data structure abstracted by this service. This information is collected for the boot-strap
 133   processor (BSP) on IA-32, and for Itanium architecture, it is available on all processors that execute
 134   the PEI Foundation.
 135
 136   @param  PeiServices               Pointer to the PEI Services Table.
 137   @param  StructureSize             Pointer to the variable describing size of the input buffer.
 138   @param  PlatformInformationRecord Pointer to the EFI_SEC_PLATFORM_INFORMATION_RECORD.
 139
 140   @retval EFI_SUCCESS               The data was successfully returned.
 141   @retval EFI_BUFFER_TOO_SMALL      The buffer was too small.
 142
 143 **/
 144 typedef
 145 EFI_STATUS
 146 (EFIAPI *EFI_SEC_PLATFORM_INFORMATION)(
 147   IN CONST  EFI_PEI_SERVICES                    **PeiServices,
 148   IN OUT    UINT64                              *StructureSize,
 149   OUT       EFI_SEC_PLATFORM_INFORMATION_RECORD *PlatformInformationRecord
 150 );
 151
 152
 153 ///
 154 /// This service abstracts platform-specific information. It is necessary
 155 /// to convey this information to the PEI Foundation so that it can
 156 /// discover where to begin dispatching PEIMs.
 157 ///
 158 struct _EFI_SEC_PLATFORM_INFORMATION_PPI {
 159   ///
 160   /// Conveys state information out of the SEC phase into PEI.
 161   ///
 162   EFI_SEC_PLATFORM_INFORMATION  PlatformInformation;
 163 };
 164
 165
 166 extern EFI_GUID gEfiSecPlatformInformationPpiGuid;
 167
 168 #endif