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1 | /** @file\r | |
2 | *\r | |
3 | * Copyright (c) 2011, ARM Limited. All rights reserved.\r | |
4 | *\r | |
5 | * This program and the accompanying materials\r | |
6 | * are licensed and made available under the terms and conditions of the BSD License\r | |
7 | * which accompanies this distribution. The full text of the license may be found at\r | |
8 | * http://opensource.org/licenses/bsd-license.php\r | |
9 | *\r | |
10 | * THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | * WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | *\r | |
13 | **/\r | |
14 | \r | |
15 | #include <PiPei.h>\r | |
16 | \r | |
17 | #include <Library/DebugAgentLib.h>\r | |
18 | #include <Library/PrePiLib.h>\r | |
19 | #include <Library/IoLib.h>\r | |
20 | #include <Library/PrintLib.h>\r | |
21 | #include <Library/PeCoffGetEntryPointLib.h>\r | |
22 | #include <Library/TimerLib.h>\r | |
23 | #include <Library/PerformanceLib.h>\r | |
24 | \r | |
25 | #include <Ppi/GuidedSectionExtraction.h>\r | |
26 | #include <Guid/LzmaDecompress.h>\r | |
27 | \r | |
28 | #include "PrePi.h"\r | |
29 | #include "LzmaDecompress.h"\r | |
30 | \r | |
31 | VOID\r | |
32 | PrePiCommonExceptionEntry (\r | |
33 | IN UINT32 Entry,\r | |
34 | IN UINT32 LR\r | |
35 | );\r | |
36 | \r | |
37 | EFI_STATUS\r | |
38 | EFIAPI\r | |
39 | ExtractGuidedSectionLibConstructor (\r | |
40 | VOID\r | |
41 | );\r | |
42 | \r | |
43 | EFI_STATUS\r | |
44 | EFIAPI\r | |
45 | LzmaDecompressLibConstructor (\r | |
46 | VOID\r | |
47 | );\r | |
48 | \r | |
49 | VOID\r | |
50 | PrePiMain (\r | |
51 | IN UINTN UefiMemoryBase,\r | |
52 | IN UINT64 StartTimeStamp\r | |
53 | )\r | |
54 | {\r | |
55 | EFI_HOB_HANDOFF_INFO_TABLE** PrePiHobBase;\r | |
56 | EFI_STATUS Status;\r | |
57 | CHAR8 Buffer[100];\r | |
58 | UINTN CharCount;\r | |
59 | UINTN UefiMemoryTop;\r | |
60 | UINTN StacksSize;\r | |
61 | UINTN StacksBase;\r | |
62 | \r | |
63 | // Enable program flow prediction, if supported.\r | |
64 | ArmEnableBranchPrediction ();\r | |
65 | \r | |
66 | if (FixedPcdGet32(PcdVFPEnabled)) {\r | |
67 | ArmEnableVFP();\r | |
68 | }\r | |
69 | \r | |
70 | // Initialize the Serial Port\r | |
71 | SerialPortInitialize ();\r | |
72 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"UEFI firmware built at %a on %a\n\r",__TIME__, __DATE__);\r | |
73 | SerialPortWrite ((UINT8 *) Buffer, CharCount);\r | |
74 | \r | |
75 | // Initialize the Debug Agent for Source Level Debugging\r | |
76 | InitializeDebugAgent (DEBUG_AGENT_INIT_POSTMEM_SEC, NULL, NULL);\r | |
77 | SaveAndSetDebugTimerInterrupt (TRUE);\r | |
78 | \r | |
79 | PrePiHobBase = (EFI_HOB_HANDOFF_INFO_TABLE**)(PcdGet32 (PcdCPUCoresNonSecStackBase) + (PcdGet32 (PcdCPUCoresNonSecStackSize) / 2) - PcdGet32 (PcdHobListPtrGlobalOffset));\r | |
80 | \r | |
81 | UefiMemoryTop = UefiMemoryBase + FixedPcdGet32 (PcdSystemMemoryUefiRegionSize);\r | |
82 | StacksSize = PcdGet32 (PcdCPUCoresNonSecStackSize) * PcdGet32 (PcdMPCoreMaxCores);\r | |
83 | StacksBase = UefiMemoryTop - StacksSize;\r | |
84 | \r | |
85 | // Declare the PI/UEFI memory region\r | |
86 | *PrePiHobBase = HobConstructor (\r | |
87 | (VOID*)UefiMemoryBase,\r | |
88 | FixedPcdGet32 (PcdSystemMemoryUefiRegionSize),\r | |
89 | (VOID*)UefiMemoryBase,\r | |
90 | (VOID*)StacksBase // The top of the UEFI Memory is reserved for the stacks\r | |
91 | );\r | |
92 | \r | |
93 | // Initialize MMU and Memory HOBs (Resource Descriptor HOBs)\r | |
94 | Status = MemoryPeim (UefiMemoryBase, FixedPcdGet32 (PcdSystemMemoryUefiRegionSize));\r | |
95 | ASSERT_EFI_ERROR (Status);\r | |
96 | \r | |
97 | // Create the Stacks HOB (reserve the memory for all stacks)\r | |
98 | BuildStackHob (StacksBase, StacksSize);\r | |
99 | \r | |
100 | // Set the Boot Mode\r | |
101 | SetBootMode (ArmPlatformGetBootMode ());\r | |
102 | \r | |
103 | // Initialize Platform HOBs (CpuHob and FvHob)\r | |
104 | Status = PlatformPeim ();\r | |
105 | ASSERT_EFI_ERROR (Status);\r | |
106 | \r | |
107 | BuildMemoryTypeInformationHob ();\r | |
108 | \r | |
109 | InitializeDebugAgent (DEBUG_AGENT_INIT_PREMEM_SEC, NULL, NULL);\r | |
110 | SaveAndSetDebugTimerInterrupt (TRUE);\r | |
111 | \r | |
112 | // Now, the HOB List has been initialized, we can register performance information\r | |
113 | PERF_START (NULL, "PEI", NULL, StartTimeStamp);\r | |
114 | \r | |
115 | // SEC phase needs to run library constructors by hand.\r | |
116 | ExtractGuidedSectionLibConstructor ();\r | |
117 | LzmaDecompressLibConstructor ();\r | |
118 | \r | |
119 | // Build HOBs to pass up our version of stuff the DXE Core needs to save space\r | |
120 | BuildPeCoffLoaderHob ();\r | |
121 | BuildExtractSectionHob (\r | |
122 | &gLzmaCustomDecompressGuid,\r | |
123 | LzmaGuidedSectionGetInfo,\r | |
124 | LzmaGuidedSectionExtraction\r | |
125 | );\r | |
126 | \r | |
127 | // Assume the FV that contains the SEC (our code) also contains a compressed FV.\r | |
128 | Status = DecompressFirstFv ();\r | |
129 | ASSERT_EFI_ERROR (Status);\r | |
130 | \r | |
131 | // Load the DXE Core and transfer control to it\r | |
132 | Status = LoadDxeCoreFromFv (NULL, 0);\r | |
133 | ASSERT_EFI_ERROR (Status);\r | |
134 | }\r | |
135 | \r | |
136 | VOID\r | |
137 | CEntryPoint (\r | |
138 | IN UINTN CoreId,\r | |
139 | IN UINTN UefiMemoryBase\r | |
140 | )\r | |
141 | {\r | |
142 | UINT64 StartTimeStamp;\r | |
143 | \r | |
144 | if ((CoreId == ARM_PRIMARY_CORE) && PerformanceMeasurementEnabled ()) {\r | |
145 | // Initialize the Timer Library to setup the Timer HW controller\r | |
146 | TimerConstructor ();\r | |
147 | // We cannot call yet the PerformanceLib because the HOB List has not been initialized\r | |
148 | StartTimeStamp = GetPerformanceCounter ();\r | |
149 | }\r | |
150 | \r | |
151 | // Clean Data cache\r | |
152 | ArmCleanInvalidateDataCache ();\r | |
153 | \r | |
154 | // Invalidate instruction cache\r | |
155 | ArmInvalidateInstructionCache ();\r | |
156 | \r | |
157 | //TODO:Drain Write Buffer\r | |
158 | \r | |
159 | // Enable Instruction & Data caches\r | |
160 | ArmEnableDataCache ();\r | |
161 | ArmEnableInstructionCache ();\r | |
162 | \r | |
163 | // Write VBAR - The Vector table must be 32-byte aligned\r | |
164 | ASSERT (((UINT32)PrePiVectorTable & ((1 << 5)-1)) == 0);\r | |
165 | ArmWriteVBar ((UINT32)PrePiVectorTable);\r | |
166 | \r | |
167 | // If not primary Jump to Secondary Main\r | |
168 | if (CoreId == ARM_PRIMARY_CORE) {\r | |
169 | // Goto primary Main.\r | |
170 | PrimaryMain (UefiMemoryBase, StartTimeStamp);\r | |
171 | } else {\r | |
172 | SecondaryMain (CoreId);\r | |
173 | }\r | |
174 | \r | |
175 | // DXE Core should always load and never return\r | |
176 | ASSERT (FALSE);\r | |
177 | }\r | |
178 | \r | |
179 | VOID\r | |
180 | PrePiCommonExceptionEntry (\r | |
181 | IN UINT32 Entry,\r | |
182 | IN UINT32 LR\r | |
183 | )\r | |
184 | {\r | |
185 | CHAR8 Buffer[100];\r | |
186 | UINTN CharCount;\r | |
187 | \r | |
188 | switch (Entry) {\r | |
189 | case 0:\r | |
190 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Reset Exception at 0x%X\n\r",LR);\r | |
191 | break;\r | |
192 | case 1:\r | |
193 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Undefined Exception at 0x%X\n\r",LR);\r | |
194 | break;\r | |
195 | case 2:\r | |
196 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"SWI Exception at 0x%X\n\r",LR);\r | |
197 | break;\r | |
198 | case 3:\r | |
199 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"PrefetchAbort Exception at 0x%X\n\r",LR);\r | |
200 | break;\r | |
201 | case 4:\r | |
202 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"DataAbort Exception at 0x%X\n\r",LR);\r | |
203 | break;\r | |
204 | case 5:\r | |
205 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Reserved Exception at 0x%X\n\r",LR);\r | |
206 | break;\r | |
207 | case 6:\r | |
208 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"IRQ Exception at 0x%X\n\r",LR);\r | |
209 | break;\r | |
210 | case 7:\r | |
211 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"FIQ Exception at 0x%X\n\r",LR);\r | |
212 | break;\r | |
213 | default:\r | |
214 | CharCount = AsciiSPrint (Buffer,sizeof (Buffer),"Unknown Exception at 0x%X\n\r",LR);\r | |
215 | break;\r | |
216 | }\r | |
217 | SerialPortWrite ((UINT8 *) Buffer, CharCount);\r | |
218 | while(1);\r | |
219 | }\r |