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   SPDX-License-Identifier: BSD-2-Clause-Patent
   7
   8 **/
   9
  10 #include <PiDxe.h>
  11 #include <IndustryStandard/SmBios.h>
  12 #include <Protocol/Smbios.h>
  13
  14 #include <Library/BaseLib.h>
  15 #include <Library/BaseMemoryLib.h>
  16 #include <Library/DebugLib.h>
  17 #include <Library/SmbiosLib.h>
  18 #include <Library/HobLib.h>
  19
  20 extern SMBIOS_TEMPLATE_ENTRY gSmbiosTemplate[];
  21
  22
  23
  24 SMBIOS_TABLE_TYPE19 gSmbiosType19Template = {
  25   { EFI_SMBIOS_TYPE_MEMORY_ARRAY_MAPPED_ADDRESS, sizeof (SMBIOS_TABLE_TYPE19), 0 },
  26   0xffffffff, // StartingAddress;
  27   0xffffffff, // EndingAddress;
  28   0,          // MemoryArrayHandle;
  29   1,          // PartitionWidth;
  30   0,          // ExtendedStartingAddress;
  31   0,          // ExtendedEndingAddress;
  32 };
  33
  34 VOID
  35 CreatePlatformSmbiosMemoryRecords (
  36   VOID
  37   )
  38 {
  39   EFI_PEI_HOB_POINTERS        HobPtr;
  40   SMBIOS_STRUCTURE_POINTER    Smbios16;
  41   SMBIOS_STRUCTURE_POINTER    Smbios17;
  42   EFI_SMBIOS_HANDLE           PhyscialMemoryArrayHandle;
  43   EFI_SMBIOS_HANDLE           SmbiosHandle;
  44
  45   Smbios16.Hdr = SmbiosLibGetRecord (EFI_SMBIOS_TYPE_PHYSICAL_MEMORY_ARRAY, 0, &PhyscialMemoryArrayHandle);
  46   if (Smbios16.Hdr == NULL) {
  47     // Only make a Type19 entry if a Type16 entry exists.
  48     return;
  49   }
  50
  51   Smbios17.Hdr = SmbiosLibGetRecord (EFI_SMBIOS_TYPE_MEMORY_DEVICE, 0, &SmbiosHandle);
  52   if (Smbios17.Hdr == NULL) {
  53     // if type17 exits update with type16 Smbios handle
  54     Smbios17.Type17->MemoryArrayHandle = PhyscialMemoryArrayHandle;
  55   }
  56
  57   // Generate Type16 records
  58   gSmbiosType19Template.MemoryArrayHandle = PhyscialMemoryArrayHandle;
  59   HobPtr.Raw = GetHobList ();
  60   while ((HobPtr.Raw = GetNextHob (EFI_HOB_TYPE_RESOURCE_DESCRIPTOR, HobPtr.Raw)) != NULL) {
  61     if (HobPtr.ResourceDescriptor->ResourceType == EFI_RESOURCE_SYSTEM_MEMORY) {
  62       gSmbiosType19Template.ExtendedStartingAddress = HobPtr.ResourceDescriptor->PhysicalStart;
  63       gSmbiosType19Template.ExtendedEndingAddress =
  64         HobPtr.ResourceDescriptor->PhysicalStart +
  65         HobPtr.ResourceDescriptor->ResourceLength - 1;
  66
  67       SmbiosLibCreateEntry ((SMBIOS_STRUCTURE *)&gSmbiosType19Template, NULL);
  68     }
  69     HobPtr.Raw = GET_NEXT_HOB (HobPtr);
  70   }
  71 }
  72
  73
  74 /**
  75   Main entry for this driver.
  76
  77   @param ImageHandle     Image handle this driver.
  78   @param SystemTable     Pointer to SystemTable.
  79
  80   @retval EFI_SUCESS     This function always complete successfully.
  81
  82 **/
  83 EFI_STATUS
  84 EFIAPI
  85 PlatfomrSmbiosDriverEntryPoint (
  86   IN EFI_HANDLE         ImageHandle,
  87   IN EFI_SYSTEM_TABLE   *SystemTable
  88   )
  89 {
  90   EFI_STATUS                  Status;
  91   EFI_SMBIOS_HANDLE           SmbiosHandle;
  92   SMBIOS_STRUCTURE_POINTER    Smbios;
  93
  94   // Phase 0 - Patch table to make SMBIOS 2.7 structures smaller to conform
  95   //           to an early version of the specification.
  96
  97   // Phase 1 - Initialize SMBIOS tables from template
  98   Status = SmbiosLibInitializeFromTemplate (gSmbiosTemplate);
  99   ASSERT_EFI_ERROR (Status);
 100
 101   // Phase 2 - Patch SMBIOS table entries
 102
 103   Smbios.Hdr = SmbiosLibGetRecord (EFI_SMBIOS_TYPE_BIOS_INFORMATION, 0, &SmbiosHandle);
 104   if (Smbios.Type0 != NULL) {
 105     // 64K * (n+1) bytes
 106     Smbios.Type0->BiosSize = (UINT8)DivU64x32 (FixedPcdGet64 (PcdEmuFirmwareFdSize), 64*1024) - 1;
 107
 108     SmbiosLibUpdateUnicodeString (
 109       SmbiosHandle,
 110       Smbios.Type0->BiosVersion,
 111       (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString)
 112       );
 113     SmbiosLibUpdateUnicodeString (
 114       SmbiosHandle,
 115       Smbios.Type0->BiosReleaseDate,
 116       (CHAR16 *) PcdGetPtr (PcdFirmwareReleaseDateString)
 117       );
 118   }
 119
 120   // Phase 3 - Create tables from scratch
 121
 122   // Create Type 13 record from EFI Variables
 123   // Do we need this record for EFI as the info is available from EFI varaibles
 124   // Also language types don't always match between EFI and SMBIOS
 125   // CreateSmbiosLanguageInformation (1, gSmbiosLangToEfiLang);
 126
 127   CreatePlatformSmbiosMemoryRecords ();
 128
 129   return EFI_SUCCESS;
 130 }