1 /*++ @file
2
3 Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR>
4 Portions copyright (c) 2011, Apple Inc. All rights reserved.
5 This program and the accompanying materials
6 are licensed and made available under the terms and conditions of the BSD License
7 which accompanies this distribution. The full text of the license may be found at
8 http://opensource.org/licenses/bsd-license.php
9
10 THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,
11 WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.
12
13 **/
14
15 #include "PiPei.h"
16 #include <Ppi/EmuThunk.h>
17 #include <Ppi/MemoryDiscovered.h>
18
19 #include <Library/DebugLib.h>
20 #include <Library/PeimEntryPoint.h>
21 #include <Library/BaseLib.h>
22 #include <Library/BaseMemoryLib.h>
23 #include <Library/HobLib.h>
24 #include <Library/PeiServicesLib.h>
25 #include <Library/PeiServicesTablePointerLib.h>
26
27 EFI_STATUS
28 EFIAPI
PeimInitializeAutoScanPei(IN EFI_PEI_FILE_HANDLE FileHandle,IN CONST EFI_PEI_SERVICES ** PeiServices)29 PeimInitializeAutoScanPei (
30 IN EFI_PEI_FILE_HANDLE FileHandle,
31 IN CONST EFI_PEI_SERVICES **PeiServices
32 )
33 /*++
34
35 Routine Description:
36 Perform a call-back into the SEC simulator to get a memory value
37
38 Arguments:
39 FfsHeader - General purpose data available to every PEIM
40 PeiServices - General purpose services available to every PEIM.
41
42 Returns:
43 None
44
45 **/
46 {
47 EFI_STATUS Status;
48 EFI_PEI_PPI_DESCRIPTOR *PpiDescriptor;
49 EMU_THUNK_PPI *Thunk;
50 UINT64 MemorySize;
51 EFI_PHYSICAL_ADDRESS MemoryBase;
52 UINTN Index;
53 EFI_RESOURCE_ATTRIBUTE_TYPE Attributes;
54
55
56 DEBUG ((EFI_D_ERROR, "Emu Autoscan PEIM Loaded\n"));
57
58 //
59 // Get the PEI UNIX Autoscan PPI
60 //
61 Status = PeiServicesLocatePpi (
62 &gEmuThunkPpiGuid, // GUID
63 0, // INSTANCE
64 &PpiDescriptor, // EFI_PEI_PPI_DESCRIPTOR
65 (VOID **)&Thunk // PPI
66 );
67 ASSERT_EFI_ERROR (Status);
68
69 Index = 0;
70 do {
71 Status = Thunk->MemoryAutoScan (Index, &MemoryBase, &MemorySize);
72 if (!EFI_ERROR (Status)) {
73 Attributes =
74 (
75 EFI_RESOURCE_ATTRIBUTE_PRESENT |
76 EFI_RESOURCE_ATTRIBUTE_INITIALIZED |
77 EFI_RESOURCE_ATTRIBUTE_UNCACHEABLE |
78 EFI_RESOURCE_ATTRIBUTE_WRITE_COMBINEABLE |
79 EFI_RESOURCE_ATTRIBUTE_WRITE_THROUGH_CACHEABLE |
80 EFI_RESOURCE_ATTRIBUTE_WRITE_BACK_CACHEABLE
81 );
82
83 if (Index == 0) {
84 //
85 // Register the memory with the PEI Core
86 //
87 Status = PeiServicesInstallPeiMemory (MemoryBase, MemorySize);
88 ASSERT_EFI_ERROR (Status);
89
90 Attributes |= EFI_RESOURCE_ATTRIBUTE_TESTED;
91 }
92
93 BuildResourceDescriptorHob (
94 EFI_RESOURCE_SYSTEM_MEMORY,
95 Attributes,
96 MemoryBase,
97 MemorySize
98 );
99 }
100 Index++;
101 } while (!EFI_ERROR (Status));
102
103 //
104 // Build the CPU hob with 36-bit addressing and 16-bits of IO space.
105 //
106 BuildCpuHob (36, 16);
107
108 return Status;
109 }
110