EmulatorPkg/PlatformSmbiosDxe/PlatformSmbiosDxe.c

   1 /** @file
   2   Static SMBIOS Table for platform
   3
   4
   5   Copyright (c) 2012, Apple Inc. All rights reserved.<BR>
   6   This program and the accompanying materials
   7   are licensed and made available under the terms and conditions of the BSD License
   8   which accompanies this distribution.  The full text of the license may be found at
   9   http://opensource.org/licenses/bsd-license.php
  10
  11   THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  12   WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  13
  14 **/
  15
  16 #include <PiDxe.h>
  17 #include <IndustryStandard/Smbios.h>
  18 #include <Protocol/Smbios.h>
  19
  20 #include <Library/BaseLib.h>
  21 #include <Library/BaseMemoryLib.h>
  22 #include <Library/DebugLib.h>
  23 #include <Library/SmbiosLib.h>
  24 #include <Library/HobLib.h>
  25
  26 extern SMBIOS_TEMPLATE_ENTRY gSmbiosTemplate[];
  27
  28
  29
  30 SMBIOS_TABLE_TYPE19 gSmbiosType19Template = {
  31   { EFI_SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS, sizeof (SMBIOS_TABLE_TYPE19), 0 },
  32   0xffffffff, // StartingAddress;
  33   0xffffffff, // EndingAddress;
  34   0,          // MemoryArrayHandle;
  35   1,          // PartitionWidth;
  36   0,          // ExtendedStartingAddress;
  37   0,          // ExtendedEndingAddress;
  38 };
  39
  40 VOID
  41 CreatePlatformSmbiosMemoryRecords (
  42   VOID
  43   )
  44 {
  45   EFI_PEI_HOB_POINTERS        HobPtr;
  46   SMBIOS_STRUCTURE_POINTER    Smbios16;
  47   SMBIOS_STRUCTURE_POINTER    Smbios17;
  48   EFI_SMBIOS_HANDLE           PhyscialMemoryArrayHandle;
  49   EFI_SMBIOS_HANDLE           SmbiosHandle;
  50
  51   Smbios16.Hdr = SmbiosGetRecord (EFI_SMBIOS_TYPE_PHYSICAL_MEMORY_ARRAY, 0, &PhyscialMemoryArrayHandle);
  52   if (Smbios16.Hdr == NULL) {
  53     // Only make a Type19 entry if a Type16 entry exists.
  54     return;
  55   }
  56
  57   Smbios17.Hdr = SmbiosGetRecord (EFI_SMBIOS_TYPE_MEMORY_DEVICE, 0, &SmbiosHandle);
  58   if (Smbios17.Hdr == NULL) {
  59     // if type17 exits update with type16 Smbios handle
  60     Smbios17.Type17->MemoryArrayHandle = PhyscialMemoryArrayHandle;
  61   }
  62
  63   // Generate Type16 records
  64   gSmbiosType19Template.MemoryArrayHandle = PhyscialMemoryArrayHandle;
  65   HobPtr.Raw = GetHobList ();
  66   while ((HobPtr.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, HobPtr.Raw)) != NULL) {
  67     if (HobPtr.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {
  68       gSmbiosType19Template.ExtendedStartingAddress = HobPtr.ResourceDescriptor->PhysicalStart;
  69       gSmbiosType19Template.ExtendedEndingAddress =
  70         HobPtr.ResourceDescriptor->PhysicalStart +
  71         HobPtr.ResourceDescriptor->ResourceLength - 1;
  72
  73       CreateSmbiosEntry ((SMBIOS_STRUCTURE *)&gSmbiosType19Template, NULL);
  74     }
  75     HobPtr.Raw = GET_NEXT_HOB (HobPtr);
  76   }
  77 }
  78
  79
  80 /**
  81   Main entry for this driver.
  82
  83   @param ImageHandle     Image handle this driver.
  84   @param SystemTable     Pointer to SystemTable.
  85
  86   @retval EFI_SUCESS     This function always complete successfully.
  87
  88 **/
  89 EFI_STATUS
  90 EFIAPI
  91 PlatfomrSmbiosDriverEntryPoint (
  92   IN EFI_HANDLE         ImageHandle,
  93   IN EFI_SYSTEM_TABLE   *SystemTable
  94   )
  95 {
  96   EFI_STATUS                  Status;
  97   EFI_SMBIOS_HANDLE           SmbiosHandle;
  98   SMBIOS_STRUCTURE_POINTER    Smbios;
  99   UINT8                       SmbiosMajorVersion;
 100   UINT8                       SmbiosMinorVersion;
 101
 102   Status = SmbiosGetVersion (&SmbiosMajorVersion, &SmbiosMinorVersion);
 103   ASSERT_EFI_ERROR (Status);
 104
 105   // Phase 0 - Patch table to make SMBIOS 2.7 structures smaller to conform
 106   //           to an early version of the specification.
 107
 108   // Phase 1 - Initialize SMBIOS tables from template
 109   Status = InitializeSmbiosTableFromTemplate (gSmbiosTemplate);
 110   ASSERT_EFI_ERROR (Status);
 111
 112   // Phase 2 - Patch SMBIOS table entries
 113
 114   Smbios.Hdr = SmbiosGetRecord (EFI_SMBIOS_TYPE_BIOS_INFORMATION, 0, &SmbiosHandle);
 115   if (Smbios.Type0 != NULL) {
 116     // 64K * (n+1) bytes
 117     Smbios.Type0->BiosSize = (UINT8)DivU64x32 (FixedPcdGet64 (PcdEmuFirmwareFdSize), 64*1024) - 1;
 118
 119     SmbiosUpdateUnicodeString (
 120       SmbiosHandle,
 121       Smbios.Type0->BiosVersion,
 122       (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString)
 123       );
 124     SmbiosUpdateUnicodeString (
 125       SmbiosHandle,
 126       Smbios.Type0->BiosReleaseDate,
 127       (CHAR16 *) PcdGetPtr (PcdFirmwareReleaseDateString)
 128       );
 129   }
 130
 131   // Phase 3 - Create tables from scratch
 132
 133   // Create Type 13 record from EFI Variables
 134   // Do we need this record for EFI as the info is availible from EFI varaibles
 135   // Also language types don't always match between EFI and SMBIOS
 136   // CreateSmbiosLanguageInformation (1, gSmbiosLangToEfiLang);
 137
 138   CreatePlatformSmbiosMemoryRecords ();
 139
 140   return EFI_SUCCESS;
 141 }