EmulatorPkg/PlatformSmbiosDxe/PlatformSmbiosDxe.c

/** @file
  Static SMBIOS Table for platform


  Copyright (c) 2012, Apple Inc. All rights reserved.<BR>
  This program and the accompanying materials
  are licensed and made available under the terms and conditions of the BSD License
  which accompanies this distribution.  The full text of the license may be found at
  http://opensource.org/licenses/bsd-license.php

  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.

**/

#include <PiDxe.h>
#include <IndustryStandard/SmBios.h>
#include <Protocol/Smbios.h>

#include <Library/BaseLib.h>
#include <Library/BaseMemoryLib.h>
#include <Library/DebugLib.h>
#include <Library/SmbiosLib.h>
#include <Library/HobLib.h>

extern SMBIOS_TEMPLATE_ENTRY gSmbiosTemplate[];



SMBIOS_TABLE_TYPE19 gSmbiosType19Template = {
  { EFI_SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS, sizeof (SMBIOS_TABLE_TYPE19), 0 },
  0xffffffff, // StartingAddress;
  0xffffffff, // EndingAddress;
  0,          // MemoryArrayHandle;
  1,          // PartitionWidth;
  0,          // ExtendedStartingAddress;
  0,          // ExtendedEndingAddress;
};

VOID
CreatePlatformSmbiosMemoryRecords (
  VOID
  )
{
  EFI_PEI_HOB_POINTERS        HobPtr;
  SMBIOS_STRUCTURE_POINTER    Smbios16;
  SMBIOS_STRUCTURE_POINTER    Smbios17;
  EFI_SMBIOS_HANDLE           PhyscialMemoryArrayHandle;
  EFI_SMBIOS_HANDLE           SmbiosHandle;

  Smbios16.Hdr = SmbiosLibGetRecord (EFI_SMBIOS_TYPE_PHYSICAL_MEMORY_ARRAY, 0, &PhyscialMemoryArrayHandle);
  if (Smbios16.Hdr == NULL) {
    // Only make a Type19 entry if a Type16 entry exists.
    return;
  }

  Smbios17.Hdr = SmbiosLibGetRecord (EFI_SMBIOS_TYPE_MEMORY_DEVICE, 0, &SmbiosHandle);
  if (Smbios17.Hdr == NULL) {
    // if type17 exits update with type16 Smbios handle
    Smbios17.Type17->MemoryArrayHandle = PhyscialMemoryArrayHandle;
  }

  // Generate Type16 records
  gSmbiosType19Template.MemoryArrayHandle = PhyscialMemoryArrayHandle;
  HobPtr.Raw = GetHobList ();
  while ((HobPtr.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, HobPtr.Raw)) != NULL) {
    if (HobPtr.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {
      gSmbiosType19Template.ExtendedStartingAddress = HobPtr.ResourceDescriptor->PhysicalStart;
      gSmbiosType19Template.ExtendedEndingAddress = 
        HobPtr.ResourceDescriptor->PhysicalStart + 
        HobPtr.ResourceDescriptor->ResourceLength - 1;
      
      SmbiosLibCreateEntry ((SMBIOS_STRUCTURE *)&gSmbiosType19Template, NULL);
    }
    HobPtr.Raw = GET_NEXT_HOB (HobPtr);
  }
}


/**
  Main entry for this driver.

  @param ImageHandle     Image handle this driver.
  @param SystemTable     Pointer to SystemTable.

  @retval EFI_SUCESS     This function always complete successfully.

**/
EFI_STATUS
EFIAPI
PlatfomrSmbiosDriverEntryPoint (
  IN EFI_HANDLE         ImageHandle,
  IN EFI_SYSTEM_TABLE   *SystemTable
  )
{
  EFI_STATUS                  Status;
  EFI_SMBIOS_HANDLE           SmbiosHandle;
  SMBIOS_STRUCTURE_POINTER    Smbios;

  // Phase 0 - Patch table to make SMBIOS 2.7 structures smaller to conform 
  //           to an early version of the specification.

  // Phase 1 - Initialize SMBIOS tables from template
  Status = SmbiosLibInitializeFromTemplate (gSmbiosTemplate);
  ASSERT_EFI_ERROR (Status);

  // Phase 2 - Patch SMBIOS table entries

  Smbios.Hdr = SmbiosLibGetRecord (EFI_SMBIOS_TYPE_BIOS_INFORMATION, 0, &SmbiosHandle);
  if (Smbios.Type0 != NULL) {
    // 64K * (n+1) bytes
    Smbios.Type0->BiosSize = (UINT8)DivU64x32 (FixedPcdGet64 (PcdEmuFirmwareFdSize), 64*1024) - 1;

    SmbiosLibUpdateUnicodeString (
      SmbiosHandle, 
      Smbios.Type0->BiosVersion, 
      (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString)
      );
    SmbiosLibUpdateUnicodeString (
      SmbiosHandle, 
      Smbios.Type0->BiosReleaseDate, 
      (CHAR16 *) PcdGetPtr (PcdFirmwareReleaseDateString)
      );
  }

  // Phase 3 - Create tables from scratch 

  // Create Type 13 record from EFI Variables
  // Do we need this record for EFI as the info is availible from EFI varaibles
  // Also language types don't always match between EFI and SMBIOS
  // CreateSmbiosLanguageInformation (1, gSmbiosLangToEfiLang);

  CreatePlatformSmbiosMemoryRecords ();

  return EFI_SUCCESS;
}