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git.proxmox.com Git - mirror_edk2.git/blob - DuetPkg/DxeIpl/DxeInit.c
3 Copyright (c) 2006 - 2007, 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
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.
23 #include "LegacyTable.h"
24 #include "HobGeneration.h"
25 #include "PpisNeededByDxeCore.h"
29 --------------------------------------------------------
30 Memory Map: (XX=32,64)
31 --------------------------------------------------------
41 EfiLdr (relocate by efiXX.COM)
43 Efivar.bin (Load by StartXX.COM)
45 StartXX.COM (E820 table, Temporary GDT, Temporary IDT)
47 EfiXX.COM (Temporary Interrupt Handler)
49 EfiLdr.efi + DxeIpl.Z + DxeMain.Z + BFV.Z
51 MemoryFreeUnder1M (For legacy driver DMA)
53 Temporary 4G PageTable for X64 (6 page)
66 MemoryAbove1MB.PhysicalStart <-----------------------------------------------------+
69 <- Phit.EfiMemoryBottom -------------------+ |
71 <- Phit.EfiFreeMemoryBottom | |
72 | MemoryFreeAbove1MB.ResourceLength
73 <- Phit.EfiFreeMemoryTop ------+ | |
74 MemoryDescriptor (For ACPINVS, ACPIReclaim) | 4M = CONSUMED_MEMORY |
76 Permament 4G PageTable for IA32 or MemoryAllocation | |
77 Permament 64G PageTable for X64 | | |
78 <------------------------------+ | |
79 Permament Stack (0x20 Pages = 128K) | |
80 <- Phit.EfiMemoryTop ----------+-----------+---------------+
84 <----------------------------------------------------------+
88 <- Top of Free Memory reported by E820 --------------------+
92 <- Memory Top on RealMemory
96 MemoryFreeAbove4G.Physicalstart <--------------------------------------------------+
99 MemoryFreeAbove4GB.ResourceLength
102 <--------------------------------------------------+
108 IN VOID
*DxeCoreEntryPoint
,
115 IN EFILDRHANDOFF
*Handoff
121 This is the entry point after this code has been loaded into memory.
128 Calls into EFI Firmware
135 VOID
*MemoryTopOnDescriptor
;
136 VOID
*MemoryDescriptor
;
138 CHAR8 PrintBuffer
[256];
141 PrintString("Enter DxeIpl ...\n");
145 PrintString("handoff:\n");
146 PrintString("Handoff.BfvBase = ");
147 PrintValue64((UINT64)(UINTN)Handoff->BfvBase);
149 PrintString("BfvLength = ");
150 PrintValue64(Handoff->BfvSize);
152 PrintString("Handoff.DxeIplImageBase = ");
153 PrintValue64((UINT64)(UINTN)Handoff->DxeIplImageBase);
155 PrintString("DxeIplImageSize = ");
156 PrintValue64(Handoff->DxeIplImageSize);
158 PrintString("Handoff.DxeCoreImageBase = ");
159 PrintValue64((UINT64)(UINTN)Handoff->DxeCoreImageBase);
161 PrintString("DxeCoreImageSize = ");
162 PrintValue64(Handoff->DxeCoreImageSize);
166 // Hob Generation Guild line:
167 // * Don't report FV as physical memory
168 // * MemoryAllocation Hob should only cover physical memory
169 // * Use ResourceDescriptor Hob to report physical memory or Firmware Device and they shouldn't be overlapped
170 PrintString("Prepare Cpu HOB information ...\n");
176 PrintString("Prepare BFV HOB information ...\n");
177 PrepareHobBfv (Handoff
->BfvBase
, Handoff
->BfvSize
);
180 // 2. Updates Memory information, and get the top free address under 4GB
182 PrintString("Prepare Memory HOB information ...\n");
183 MemoryTopOnDescriptor
= PrepareHobMemory (Handoff
->MemDescCount
, Handoff
->MemDesc
);
186 // 3. Put [NV], [Stack], [PageTable], [MemDesc], [HOB] just below the [top free address under 4GB]
190 PrintString("Prepare NV Storage information ...\n");
191 NvStorageBase
= PrepareHobNvStorage (MemoryTopOnDescriptor
);
192 AsciiSPrint (PrintBuffer
, 256, "NV Storage Base=0x%x\n", (UINTN
)NvStorageBase
);
193 PrintString (PrintBuffer
);
196 StackTop
= NvStorageBase
;
197 StackBottom
= PrepareHobStack (StackTop
);
198 AsciiSPrint (PrintBuffer
, 256, "Stack Top=0x%x, Stack Bottom=0x%x\n",
199 (UINTN
)StackTop
, (UINTN
)StackBottom
);
200 PrintString (PrintBuffer
);
202 PageTableBase
= PreparePageTable (StackBottom
, gHob
->Cpu
.SizeOfMemorySpace
);
203 // 3.4 MemDesc (will be used in PlatformBds)
204 MemoryDescriptor
= PrepareHobMemoryDescriptor (PageTableBase
, Handoff
->MemDescCount
, Handoff
->MemDesc
);
205 // 3.5 Copy the Hob itself to EfiMemoryBottom, and update the PHIT Hob
206 PrepareHobPhit (StackTop
, MemoryDescriptor
);
209 // 4. Register the memory occupied by DxeCore and DxeIpl together as DxeCore
211 PrintString("Prepare DxeCore memory Hob ...\n");
213 Handoff
->DxeCoreEntryPoint
,
214 (EFI_PHYSICAL_ADDRESS
)(UINTN
)Handoff
->DxeCoreImageBase
,
215 (UINTN
)Handoff
->DxeIplImageBase
+ (UINTN
)Handoff
->DxeIplImageSize
- (UINTN
)Handoff
->DxeCoreImageBase
218 PrepareHobLegacyTable (gHob
);
220 PreparePpisNeededByDxeCore (gHob
);
222 CompleteHobGeneration ();
224 AsciiSPrint (PrintBuffer
, 256, "HobStart=0x%x\n", (UINTN
)gHob
);
225 PrintString (PrintBuffer
);
227 AsciiSPrint (PrintBuffer
, 256, "Memory Top=0x%x, Bottom=0x%x\n",
228 (UINTN
)gHob
->Phit
.EfiMemoryTop
, (UINTN
)gHob
->Phit
.EfiMemoryBottom
);
229 PrintString (PrintBuffer
);
231 AsciiSPrint (PrintBuffer
, 256, "Free Memory Top=0x%x, Bottom=0x%x\n",
232 (UINTN
)gHob
->Phit
.EfiFreeMemoryTop
, (UINTN
)gHob
->Phit
.EfiFreeMemoryBottom
);
233 PrintString (PrintBuffer
);
235 AsciiSPrint (PrintBuffer
, 256, "Nv Base=0x%x, Length=0x%x\n",
236 (UINTN
)gHob
->NvStorageFvb
.FvbInfo
.Entries
[0].Base
,
237 (UINTN
)gHob
->NvFtwFvb
.FvbInfo
.Entries
[0].Length
);
238 PrintString (PrintBuffer
);
244 PrintString("Hob Info\n");
245 PrintString("Phit.EfiMemoryTop = ");
246 PrintValue64(gHob->Phit.EfiMemoryTop);
247 PrintString(" Phit.EfiMemoryBottom = ");
248 PrintValue64(gHob->Phit.EfiMemoryBottom);
250 PrintString("Phit.EfiFreeMemoryTop = ");
251 PrintValue64(gHob->Phit.EfiFreeMemoryTop);
252 PrintString(" Phit.EfiFreeMemoryBottom = ");
253 PrintValue64(gHob->Phit.EfiFreeMemoryBottom);
255 PrintString("Bfv = ");
256 PrintValue64(gHob->Bfv.BaseAddress);
257 PrintString(" BfvLength = ");
258 PrintValue64(gHob->Bfv.Length);
260 PrintString("NvStorageFvb = ");
261 PrintValue64(gHob->NvStorageFvb.FvbInfo.Entries[0].Base);
262 PrintString(" Length = ");
263 PrintValue64(gHob->NvStorageFvb.FvbInfo.Entries[0].Length);
265 PrintString("NvFtwFvb = ");
266 PrintValue64(gHob->NvFtwFvb.FvbInfo.Entries[0].Base);
267 PrintString(" Length = ");
268 PrintValue64(gHob->NvFtwFvb.FvbInfo.Entries[0].Length);
270 PrintString("Stack = ");
271 PrintValue64(gHob->Stack.AllocDescriptor.MemoryBaseAddress);
272 PrintString(" StackLength = ");
273 PrintValue64(gHob->Stack.AllocDescriptor.MemoryLength);
275 PrintString("MemoryFreeUnder1MB = ");
276 PrintValue64(gHob->MemoryFreeUnder1MB.PhysicalStart);
277 PrintString(" MemoryFreeUnder1MBLength = ");
278 PrintValue64(gHob->MemoryFreeUnder1MB.ResourceLength);
280 PrintString("MemoryAbove1MB = ");
281 PrintValue64(gHob->MemoryAbove1MB.PhysicalStart);
282 PrintString(" MemoryAbove1MBLength = ");
283 PrintValue64(gHob->MemoryAbove1MB.ResourceLength);
285 PrintString("MemoryAbove4GB = ");
286 PrintValue64(gHob->MemoryAbove4GB.PhysicalStart);
287 PrintString(" MemoryAbove4GBLength = ");
288 PrintValue64(gHob->MemoryAbove4GB.ResourceLength);
290 PrintString("DxeCore = ");
291 PrintValue64(gHob->DxeCore.MemoryAllocationHeader.MemoryBaseAddress);
292 PrintString(" DxeCoreLength = ");
293 PrintValue64(gHob->DxeCore.MemoryAllocationHeader.MemoryLength);
295 PrintString("MemoryAllocation = ");
296 PrintValue64(gHob->MemoryAllocation.AllocDescriptor.MemoryBaseAddress);
297 PrintString(" MemoryLength = ");
298 PrintValue64(gHob->MemoryAllocation.AllocDescriptor.MemoryLength);
304 PrintString("\n\n\n\n\n\n\n\n\n\n");
305 PrintString(" WELCOME TO EFI WORLD!\n");
307 EnterDxeMain (StackTop
, Handoff
->DxeCoreEntryPoint
, gHob
, PageTableBase
);
309 PrintString("Fail to enter DXE main!\n");
311 // Should never get here
319 IN EFILDRHANDOFF
*Handoff