Nt32Pkg/WinNtAutoScanPeim/WinNtAutoScan.c

   1 /*++
   2
   3 Copyright (c) 2006, Intel Corporation
   4 All rights reserved. This program and the accompanying materials
   5 are licensed and made available under the terms and conditions of the BSD License
   6 which accompanies this distribution.  The full text of the license may be found at
   7 http://opensource.org/licenses/bsd-license.php
   8
   9 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
  10 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
  11
  12 Module Name:
  13   WinNtAutoscan.c
  14
  15 Abstract:
  16   This PEIM to abstract memory auto-scan in a Windows NT environment.
  17
  18 Revision History
  19
  20 --*/
  21
  22 //
  23 // The package level header files this module uses
  24 //
  25 #include <PiPei.h>
  26 #include <WinNtPeim.h>
  27 //
  28 // The protocols, PPI and GUID defintions for this module
  29 //
  30 #include <Ppi/BaseMemoryTest.h>
  31 #include <Ppi/NtAutoscan.h>
  32 //
  33 // The Library classes this module consumes
  34 //
  35 #include <Library/DebugLib.h>
  36 #include <Library/PeimEntryPoint.h>
  37 #include <Library/HobLib.h>
  38
  39 EFI_STATUS
  40 EFIAPI
  41 PeimInitializeWinNtAutoScan (
  42   IN EFI_FFS_FILE_HEADER       *FfsHeader,
  43   IN EFI_PEI_SERVICES          **PeiServices
  44   )
  45 /*++
  46
  47 Routine Description:
  48   Perform a call-back into the SEC simulator to get a memory value
  49
  50 Arguments:
  51   FfsHeader   - General purpose data available to every PEIM
  52   PeiServices - General purpose services available to every PEIM.
  53
  54 Returns:
  55   None
  56
  57 --*/
  58 {
  59   EFI_STATUS                  Status;
  60   EFI_PEI_PPI_DESCRIPTOR      *PpiDescriptor;
  61   PEI_NT_AUTOSCAN_PPI         *PeiNtService;
  62   UINT64                      MemorySize;
  63   EFI_PHYSICAL_ADDRESS        MemoryBase;
  64   PEI_BASE_MEMORY_TEST_PPI    *MemoryTestPpi;
  65   EFI_PHYSICAL_ADDRESS        ErrorAddress;
  66   UINTN                       Index;
  67   EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
  68
  69
  70   DEBUG ((EFI_D_ERROR, "NT 32 Autoscan PEIM Loaded\n"));
  71
  72   //
  73   // Get the PEI NT Autoscan PPI
  74   //
  75   Status = (**PeiServices).LocatePpi (
  76                             PeiServices,
  77                             &gPeiNtAutoScanPpiGuid, // GUID
  78                             0,                      // INSTANCE
  79                             &PpiDescriptor,         // EFI_PEI_PPI_DESCRIPTOR
  80                             &PeiNtService           // PPI
  81                             );
  82   ASSERT_EFI_ERROR (Status);
  83
  84   //
  85   // Get the Memory Test PPI
  86   //
  87   Status = (**PeiServices).LocatePpi (
  88                             PeiServices,
  89                             &gPeiBaseMemoryTestPpiGuid,
  90                             0,
  91                             NULL,
  92                             &MemoryTestPpi
  93                             );
  94   ASSERT_EFI_ERROR (Status);
  95
  96   Index = 0;
  97   do {
  98     Status = PeiNtService->NtAutoScan (Index, &MemoryBase, &MemorySize);
  99     if (!EFI_ERROR (Status)) {
 100       Attributes =
 101         (
 102           EFI_RESOURCE_ATTRIBUTE_PRESENT |
 103           EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
 104           EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
 105           EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
 106           EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
 107           EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
 108         );
 109
 110       if (Index == 0) {
 111         //
 112         // For the first area register it as PEI tested memory
 113         //
 114         Status = MemoryTestPpi->BaseMemoryTest (
 115                                   PeiServices,
 116                                   MemoryTestPpi,
 117                                   MemoryBase,
 118                                   MemorySize,
 119                                   Quick,
 120                                   &ErrorAddress
 121                                   );
 122         ASSERT_EFI_ERROR (Status);
 123
 124         //
 125         // Register the "tested" memory with the PEI Core
 126         //
 127         Status = (**PeiServices).InstallPeiMemory (PeiServices, MemoryBase, MemorySize);
 128         ASSERT_EFI_ERROR (Status);
 129
 130         Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;
 131       }
 132
 133       BuildResourceDescriptorHob (
 134         EFI_RESOURCE_SYSTEM_MEMORY,
 135         Attributes,
 136         MemoryBase,
 137         MemorySize
 138         );
 139     }
 140     Index++;
 141   } while (!EFI_ERROR (Status));
 142
 143   //
 144   // Build the CPU hob with 36-bit addressing and 16-bits of IO space.
 145   //
 146   BuildCpuHob (36, 16);
 147
 148   return Status;
 149 }