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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
;
141 PrintString("handoff:\n");
142 PrintString("Handoff.BfvBase = ");
143 PrintValue64((UINT64)(UINTN)Handoff->BfvBase);
145 PrintString("BfvLength = ");
146 PrintValue64(Handoff->BfvSize);
148 PrintString("Handoff.DxeIplImageBase = ");
149 PrintValue64((UINT64)(UINTN)Handoff->DxeIplImageBase);
151 PrintString("DxeIplImageSize = ");
152 PrintValue64(Handoff->DxeIplImageSize);
154 PrintString("Handoff.DxeCoreImageBase = ");
155 PrintValue64((UINT64)(UINTN)Handoff->DxeCoreImageBase);
157 PrintString("DxeCoreImageSize = ");
158 PrintValue64(Handoff->DxeCoreImageSize);
162 // Hob Generation Guild line:
163 // * Don't report FV as physical memory
164 // * MemoryAllocation Hob should only cover physical memory
165 // * Use ResourceDescriptor Hob to report physical memory or Firmware Device and they shouldn't be overlapped
171 PrepareHobBfv (Handoff
->BfvBase
, Handoff
->BfvSize
);
174 // 2. Updates Memory information, and get the top free address under 4GB
176 MemoryTopOnDescriptor
= PrepareHobMemory (Handoff
->MemDescCount
, Handoff
->MemDesc
);
179 // 3. Put [NV], [Stack], [PageTable], [MemDesc], [HOB] just below the [top free address under 4GB]
183 NvStorageBase
= PrepareHobNvStorage (MemoryTopOnDescriptor
);
185 StackTop
= NvStorageBase
;
186 StackBottom
= PrepareHobStack (StackTop
);
188 PageTableBase
= PreparePageTable (StackBottom
, gHob
->Cpu
.SizeOfMemorySpace
);
189 // 3.4 MemDesc (will be used in PlatformBds)
190 MemoryDescriptor
= PrepareHobMemoryDescriptor (PageTableBase
, Handoff
->MemDescCount
, Handoff
->MemDesc
);
191 // 3.5 Copy the Hob itself to EfiMemoryBottom, and update the PHIT Hob
192 PrepareHobPhit (StackTop
, MemoryDescriptor
);
195 // 4. Register the memory occupied by DxeCore and DxeIpl together as DxeCore
198 Handoff
->DxeCoreEntryPoint
,
199 (EFI_PHYSICAL_ADDRESS
)(UINTN
)Handoff
->DxeCoreImageBase
,
200 (UINTN
)Handoff
->DxeIplImageBase
+ (UINTN
)Handoff
->DxeIplImageSize
- (UINTN
)Handoff
->DxeCoreImageBase
203 PrepareHobLegacyTable (gHob
);
204 PreparePpisNeededByDxeCore (gHob
);
206 CompleteHobGeneration ();
213 PrintString("Hob Info\n");
214 PrintString("Phit.EfiMemoryTop = ");
215 PrintValue64(gHob->Phit.EfiMemoryTop);
216 PrintString(" Phit.EfiMemoryBottom = ");
217 PrintValue64(gHob->Phit.EfiMemoryBottom);
219 PrintString("Phit.EfiFreeMemoryTop = ");
220 PrintValue64(gHob->Phit.EfiFreeMemoryTop);
221 PrintString(" Phit.EfiFreeMemoryBottom = ");
222 PrintValue64(gHob->Phit.EfiFreeMemoryBottom);
224 PrintString("Bfv = ");
225 PrintValue64(gHob->Bfv.BaseAddress);
226 PrintString(" BfvLength = ");
227 PrintValue64(gHob->Bfv.Length);
229 PrintString("NvStorageFvb = ");
230 PrintValue64(gHob->NvStorageFvb.FvbInfo.Entries[0].Base);
231 PrintString(" Length = ");
232 PrintValue64(gHob->NvStorageFvb.FvbInfo.Entries[0].Length);
234 PrintString("NvFtwFvb = ");
235 PrintValue64(gHob->NvFtwFvb.FvbInfo.Entries[0].Base);
236 PrintString(" Length = ");
237 PrintValue64(gHob->NvFtwFvb.FvbInfo.Entries[0].Length);
239 PrintString("Stack = ");
240 PrintValue64(gHob->Stack.AllocDescriptor.MemoryBaseAddress);
241 PrintString(" StackLength = ");
242 PrintValue64(gHob->Stack.AllocDescriptor.MemoryLength);
244 PrintString("MemoryFreeUnder1MB = ");
245 PrintValue64(gHob->MemoryFreeUnder1MB.PhysicalStart);
246 PrintString(" MemoryFreeUnder1MBLength = ");
247 PrintValue64(gHob->MemoryFreeUnder1MB.ResourceLength);
249 PrintString("MemoryAbove1MB = ");
250 PrintValue64(gHob->MemoryAbove1MB.PhysicalStart);
251 PrintString(" MemoryAbove1MBLength = ");
252 PrintValue64(gHob->MemoryAbove1MB.ResourceLength);
254 PrintString("MemoryAbove4GB = ");
255 PrintValue64(gHob->MemoryAbove4GB.PhysicalStart);
256 PrintString(" MemoryAbove4GBLength = ");
257 PrintValue64(gHob->MemoryAbove4GB.ResourceLength);
259 PrintString("DxeCore = ");
260 PrintValue64(gHob->DxeCore.MemoryAllocationHeader.MemoryBaseAddress);
261 PrintString(" DxeCoreLength = ");
262 PrintValue64(gHob->DxeCore.MemoryAllocationHeader.MemoryLength);
264 PrintString("MemoryAllocation = ");
265 PrintValue64(gHob->MemoryAllocation.AllocDescriptor.MemoryBaseAddress);
266 PrintString(" MemoryLength = ");
267 PrintValue64(gHob->MemoryAllocation.AllocDescriptor.MemoryLength);
273 PrintString("\n\n\n\n\n\n\n\n\n\n");
274 PrintString(" WELCOME TO EFI WORLD!\n");
276 EnterDxeMain (StackTop
, Handoff
->DxeCoreEntryPoint
, gHob
, PageTableBase
);
279 // Should never get here