system76-edk2/MdeModulePkg/Universal/SmbiosDxe/SmbiosDxe.h

/** @file
  This code supports the implementation of the Smbios protocol

Copyright (c) 2009 - 2021, Intel Corporation. All rights reserved.<BR>
SPDX-License-Identifier: BSD-2-Clause-Patent

**/

#ifndef _SMBIOS_DXE_H_
#define _SMBIOS_DXE_H_

#include <PiDxe.h>

#include <Protocol/Smbios.h>
#include <IndustryStandard/SmBios.h>
#include <Guid/EventGroup.h>
#include <Guid/SmBios.h>
#include <Library/DebugLib.h>
#include <Library/UefiDriverEntryPoint.h>
#include <Library/UefiLib.h>
#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/MemoryAllocationLib.h>
#include <Library/UefiBootServicesTableLib.h>
#include <Library/PcdLib.h>
#include <Library/HobLib.h>
#include <UniversalPayload/SmbiosTable.h>

#define SMBIOS_INSTANCE_SIGNATURE  SIGNATURE_32 ('S', 'B', 'i', 's')
typedef struct {
  UINT32                 Signature;
  EFI_HANDLE             Handle;
  //
  // Produced protocol
  //
  EFI_SMBIOS_PROTOCOL    Smbios;
  //
  // Updates to record list must be locked.
  //
  EFI_LOCK               DataLock;
  //
  // List of EFI_SMBIOS_ENTRY structures.
  //
  LIST_ENTRY             DataListHead;
  //
  // List of allocated SMBIOS handle.
  //
  LIST_ENTRY             AllocatedHandleListHead;
} SMBIOS_INSTANCE;

#define SMBIOS_INSTANCE_FROM_THIS(this)  CR (this, SMBIOS_INSTANCE, Smbios, SMBIOS_INSTANCE_SIGNATURE)

//
// SMBIOS record Header
//
// An SMBIOS internal Record is an EFI_SMBIOS_RECORD_HEADER followed by (RecordSize - HeaderSize) bytes of
//  data. The format of the data is defined by the SMBIOS spec.
//
//
#define EFI_SMBIOS_RECORD_HEADER_VERSION  0x0100
typedef struct {
  UINT16        Version;
  UINT16        HeaderSize;
  UINTN         RecordSize;
  EFI_HANDLE    ProducerHandle;
  UINTN         NumberOfStrings;
} EFI_SMBIOS_RECORD_HEADER;

//
// Private data structure to contain the SMBIOS record. One record per
//  structure. SmbiosRecord is a copy of the data passed in and follows RecordHeader .
//
#define EFI_SMBIOS_ENTRY_SIGNATURE  SIGNATURE_32 ('S', 'r', 'e', 'c')
typedef struct {
  UINT32                      Signature;
  LIST_ENTRY                  Link;
  EFI_SMBIOS_RECORD_HEADER    *RecordHeader;
  UINTN                       RecordSize;
  //
  // Indicate which table this record is added to.
  //
  BOOLEAN                     Smbios32BitTable;
  BOOLEAN                     Smbios64BitTable;
} EFI_SMBIOS_ENTRY;

#define SMBIOS_ENTRY_FROM_LINK(link)  CR (link, EFI_SMBIOS_ENTRY, Link, EFI_SMBIOS_ENTRY_SIGNATURE)

//
// Private data to contain the Smbios handle that already allocated.
//
#define SMBIOS_HANDLE_ENTRY_SIGNATURE  SIGNATURE_32 ('S', 'h', 'r', 'd')

typedef struct {
  UINT32               Signature;
  LIST_ENTRY           Link;
  //
  // Filter driver will register what record guid filter should be used.
  //
  EFI_SMBIOS_HANDLE    SmbiosHandle;
} SMBIOS_HANDLE_ENTRY;

#define SMBIOS_HANDLE_ENTRY_FROM_LINK(link)  CR (link, SMBIOS_HANDLE_ENTRY, Link, SMBIOS_HANDLE_ENTRY_SIGNATURE)

typedef struct {
  EFI_SMBIOS_TABLE_HEADER    Header;
  UINT8                      Tailing[2];
} EFI_SMBIOS_TABLE_END_STRUCTURE;

/**
  Create Smbios Table and installs the Smbios Table to the System Table.

  @param  Smbios32BitTable    The flag to update 32-bit table.
  @param  Smbios64BitTable    The flag to update 64-bit table.

**/
VOID
EFIAPI
SmbiosTableConstruction (
  BOOLEAN  Smbios32BitTable,
  BOOLEAN  Smbios64BitTable
  );

/**
  Validates a SMBIOS 3.0 table entry point.

  @param  TableEntry       The SmBios table entry to validate.
  @param  TableAddress     On exit, point to the smbios table addres.
  @param  TableMaximumSize On exit, point to the maximum size of the table.

  @retval TRUE           SMBIOS table entry point is valid.
  @retval FALSE          SMBIOS table entry point is malformed.

**/
STATIC
BOOLEAN
IsValidSmbios30Table (
  IN  VOID   *TableEntry,
  OUT VOID   **TableAddress,
  OUT UINTN  *TableMaximumSize,
  OUT UINT8  *MajorVersion,
  OUT UINT8  *MinorVersion
  );

/**
  Validates a SMBIOS 2.0 table entry point.

  @param  TableEntry       The SmBios table entry to validate.
  @param  TableAddress     On exit, point to the smbios table addres.
  @param  TableMaximumSize On exit, point to the maximum size of the table.

  @retval TRUE           SMBIOS table entry point is valid.
  @retval FALSE          SMBIOS table entry point is malformed.

**/
STATIC
BOOLEAN
IsValidSmbios20Table (
  IN  VOID   *TableEntry,
  OUT VOID   **TableAddress,
  OUT UINTN  *TableMaximumSize,
  OUT UINT8  *MajorVersion,
  OUT UINT8  *MinorVersion
  );

/**
  Validates a SMBIOS table entry point.

  @param  TableEntry       The SmBios table entry to validate.
  @param  TableAddress     On exit, point to the smbios table addres.
  @param  TableMaximumSize On exit, point to the maximum size of the table.

  @retval TRUE           SMBIOS table entry point is valid.
  @retval FALSE          SMBIOS table entry point is malformed.

**/
typedef
BOOLEAN
(*IS_SMBIOS_TABLE_VALID) (
  IN  VOID   *TableEntry,
  OUT VOID   **TableAddress,
  OUT UINTN  *TableMaximumSize,
  OUT UINT8  *MajorVersion,
  OUT UINT8  *MinorVersion
  );
typedef struct {
  EFI_GUID                 *Guid;
  IS_SMBIOS_TABLE_VALID    IsValid;
} IS_SMBIOS_TABLE_VALID_ENTRY;

#endif