Remove private data structure in PEI core entry point.
[mirror_edk2.git] / EdkModulePkg / Core / Pei / PeiMain / PeiMain.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
14 PeiMain.c
15
16 Abstract:
17
18 Pei Core Main Entry Point
19
20 Revision History
21
22 --*/
23
24 #include <PeiMain.h>
25
26 //
27 //CAR is filled with this initial value during SEC phase
28 //
29 #define INIT_CAR_VALUE 0x5AA55AA5
30
31 static EFI_PEI_PPI_DESCRIPTOR mMemoryDiscoveredPpi = {
32 (EFI_PEI_PPI_DESCRIPTOR_PPI | EFI_PEI_PPI_DESCRIPTOR_TERMINATE_LIST),
33 &gEfiPeiMemoryDiscoveredPpiGuid,
34 NULL
35 };
36
37 //
38 // Pei Core Module Variables
39 //
40 //
41 static EFI_PEI_SERVICES mPS = {
42 {
43 PEI_SERVICES_SIGNATURE,
44 PEI_SERVICES_REVISION,
45 sizeof (EFI_PEI_SERVICES),
46 0,
47 0
48 },
49 PeiInstallPpi,
50 PeiReInstallPpi,
51 PeiLocatePpi,
52 PeiNotifyPpi,
53
54 PeiGetBootMode,
55 PeiSetBootMode,
56
57 PeiGetHobList,
58 PeiCreateHob,
59
60 PeiFvFindNextVolume,
61 PeiFfsFindNextFile,
62 PeiFfsFindSectionData,
63
64 PeiInstallPeiMemory,
65 PeiAllocatePages,
66 PeiAllocatePool,
67 (EFI_PEI_COPY_MEM)CopyMem,
68 (EFI_PEI_SET_MEM)SetMem,
69
70 PeiReportStatusCode,
71
72 PeiResetSystem
73 };
74
75 EFI_STATUS
76 EFIAPI
77 PeiCore (
78 IN EFI_PEI_STARTUP_DESCRIPTOR *PeiStartupDescriptor,
79 IN VOID *Data
80 )
81 /*++
82
83 Routine Description:
84
85 The entry routine to Pei Core, invoked by PeiMain during transition
86 from SEC to PEI. After switching stack in the PEI core, it will restart
87 with the old core data.
88
89 Arguments:
90
91 PeiStartupDescriptor - Information and services provided by SEC phase.
92 OldCoreData - Pointer to old core data that is used to initialize the
93 core's data areas.
94
95 Returns:
96
97 This function never returns
98 EFI_NOT_FOUND - Never reach
99
100 --*/
101 {
102 PEI_CORE_INSTANCE PrivateData;
103 EFI_STATUS Status;
104 PEI_CORE_TEMP_POINTERS TempPtr;
105 PEI_CORE_DISPATCH_DATA *DispatchData;
106 UINT64 mTick;
107 PEI_CORE_INSTANCE *OldCoreData;
108
109 mTick = 0;
110 OldCoreData = (PEI_CORE_INSTANCE *) Data;
111
112 if (PerformanceMeasurementEnabled()) {
113 if (OldCoreData == NULL) {
114 mTick = GetPerformanceCounter ();
115 }
116 }
117
118 //
119 // For IPF in CAR mode the real memory access is uncached,in InstallPeiMemory()
120 // the 63-bit of address is set to 1.
121 //
122 SWITCH_TO_CACHE_MODE (OldCoreData);
123
124 if (OldCoreData != NULL) {
125 CopyMem (&PrivateData, OldCoreData, sizeof (PEI_CORE_INSTANCE));
126 } else {
127 ZeroMem (&PrivateData, sizeof (PEI_CORE_INSTANCE));
128 }
129
130 PrivateData.Signature = PEI_CORE_HANDLE_SIGNATURE;
131 PrivateData.PS = &mPS;
132
133 //
134 // Initialize libraries that the PeiCore is linked against
135 // BUGBUG: The FfsHeader is passed in as NULL. Do we look it up or remove it from the lib init?
136 //
137 ProcessLibraryConstructorList (NULL, &PrivateData.PS);
138
139 InitializeMemoryServices (&PrivateData.PS, PeiStartupDescriptor, OldCoreData);
140
141 InitializePpiServices (&PrivateData.PS, OldCoreData);
142
143 InitializeSecurityServices (&PrivateData.PS, OldCoreData);
144
145 InitializeDispatcherData (&PrivateData.PS, OldCoreData, PeiStartupDescriptor);
146
147 if (OldCoreData != NULL) {
148
149 PERF_END (NULL,"PreMem", NULL, 0);
150 PERF_START (NULL,"PostMem", NULL, 0);
151
152 //
153 // The following code dumps out interesting cache as RAM usage information
154 // so we can keep tabs on how the cache as RAM is being utilized. The
155 // DEBUG_CODE_BEGIN macro is used to prevent this code from being compiled
156 // on a debug build.
157 //
158 DEBUG_CODE_BEGIN ();
159 UINTN *StackPointer;
160 UINTN StackValue;
161
162 StackValue = INIT_CAR_VALUE;
163 for (StackPointer = (UINTN *) OldCoreData->MaxTopOfCarHeap;
164 ((UINTN) StackPointer < ((UINTN) OldCoreData->BottomOfCarHeap + OldCoreData->SizeOfCacheAsRam))
165 && StackValue == INIT_CAR_VALUE;
166 StackPointer++) {
167 StackValue = *StackPointer;
168 }
169
170 DEBUG ((EFI_D_INFO, "Total Cache as RAM: %d bytes.\n", OldCoreData->SizeOfCacheAsRam));
171 DEBUG ((EFI_D_INFO, " CAR stack ever used: %d bytes.\n",
172 ((UINTN) OldCoreData->TopOfCarHeap - (UINTN) StackPointer)
173 ));
174 DEBUG ((EFI_D_INFO, " CAR heap used: %d bytes.\n",
175 ((UINTN) OldCoreData->HobList.HandoffInformationTable->EfiFreeMemoryBottom -
176 (UINTN) OldCoreData->HobList.Raw)
177 ));
178 DEBUG_CODE_END ();
179
180 //
181 // Alert any listeners that there is permanent memory available
182 //
183
184 PERF_START (NULL,"DisMem", NULL, 0);
185 Status = PeiServicesInstallPpi (&mMemoryDiscoveredPpi);
186 PERF_END (NULL,"DisMem", NULL, 0);
187
188 } else {
189
190 //
191 // Report Status Code EFI_SW_PC_INIT
192 //
193 REPORT_STATUS_CODE (
194 EFI_PROGRESS_CODE,
195 EFI_SOFTWARE_PEI_CORE | EFI_SW_PC_INIT
196 );
197
198 PERF_START (NULL,"PEI", NULL, mTick);
199 //
200 // If first pass, start performance measurement.
201 //
202 PERF_START (NULL,"PreMem", NULL, mTick);
203
204 //
205 // If SEC provided any PPI services to PEI, install them.
206 //
207 if (PeiStartupDescriptor->DispatchTable != NULL) {
208 Status = PeiServicesInstallPpi (PeiStartupDescriptor->DispatchTable);
209 ASSERT_EFI_ERROR (Status);
210 }
211 }
212
213 DispatchData = &PrivateData.DispatchData;
214
215 //
216 // Call PEIM dispatcher
217 //
218 PeiDispatcher (PeiStartupDescriptor, &PrivateData, DispatchData);
219
220 //
221 // Check if InstallPeiMemory service was called.
222 //
223 ASSERT(PrivateData.PeiMemoryInstalled == TRUE);
224
225 PERF_END (NULL, "PostMem", NULL, 0);
226
227 Status = PeiServicesLocatePpi (
228 &gEfiDxeIplPpiGuid,
229 0,
230 NULL,
231 (VOID **)&TempPtr.DxeIpl
232 );
233 ASSERT_EFI_ERROR (Status);
234
235 DEBUG ((EFI_D_INFO, "DXE IPL Entry\n"));
236 Status = TempPtr.DxeIpl->Entry (
237 TempPtr.DxeIpl,
238 &PrivateData.PS,
239 PrivateData.HobList
240 );
241
242 ASSERT_EFI_ERROR (Status);
243
244 return EFI_NOT_FOUND;
245 }
246