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      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 = SmbiosLibGetRecord (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 = SmbiosLibGetRecord (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       SmbiosLibCreateEntry ((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 
    100   // Phase 0 - Patch table to make SMBIOS 2.7 structures smaller to conform
    101   //           to an early version of the specification.
    102 
    103   // Phase 1 - Initialize SMBIOS tables from template
    104   Status = SmbiosLibInitializeFromTemplate (gSmbiosTemplate);
    105   ASSERT_EFI_ERROR (Status);
    106 
    107   // Phase 2 - Patch SMBIOS table entries
    108 
    109   Smbios.Hdr = SmbiosLibGetRecord (EFI_SMBIOS_TYPE_BIOS_INFORMATION, 0, &SmbiosHandle);
    110   if (Smbios.Type0 != NULL) {
    111     // 64K * (n+1) bytes
    112     Smbios.Type0->BiosSize = (UINT8)DivU64x32 (FixedPcdGet64 (PcdEmuFirmwareFdSize), 64*1024) - 1;
    113 
    114     SmbiosLibUpdateUnicodeString (
    115       SmbiosHandle,
    116       Smbios.Type0->BiosVersion,
    117       (CHAR16 *) PcdGetPtr (PcdFirmwareVersionString)
    118       );
    119     SmbiosLibUpdateUnicodeString (
    120       SmbiosHandle,
    121       Smbios.Type0->BiosReleaseDate,
    122       (CHAR16 *) PcdGetPtr (PcdFirmwareReleaseDateString)
    123       );
    124   }
    125 
    126   // Phase 3 - Create tables from scratch
    127 
    128   // Create Type 13 record from EFI Variables
    129   // Do we need this record for EFI as the info is availible from EFI varaibles
    130   // Also language types don't always match between EFI and SMBIOS
    131   // CreateSmbiosLanguageInformation (1, gSmbiosLangToEfiLang);
    132 
    133   CreatePlatformSmbiosMemoryRecords ();
    134 
    135   return EFI_SUCCESS;
    136 }