1 | ␊ |
2 | /*␊ |
3 | * Copyright 2007 David F. Elliott.␉ All rights reserved.␊ |
4 | */␊ |
5 | #include "saio_types.h"␊ |
6 | #include "libsaio.h"␊ |
7 | #include "boot.h"␊ |
8 | #include "bootstruct.h"␊ |
9 | #include "efi.h"␊ |
10 | #include "acpi.h"␊ |
11 | #include "fake_efi.h"␊ |
12 | #include "efi_tables.h"␊ |
13 | #include "platform.h"␊ |
14 | #include "acpi_patcher.h"␊ |
15 | #include "smbios.h"␊ |
16 | #include "device_inject.h"␊ |
17 | #include "convert.h"␊ |
18 | #include "pci.h"␊ |
19 | #include "sl.h"␊ |
20 | ␊ |
21 | extern void setup_pci_devs(pci_dt_t *pci_dt);␊ |
22 | ␊ |
23 | /*␊ |
24 | * Modern Darwin kernels require some amount of EFI because Apple machines all␊ |
25 | * have EFI. Modifying the kernel source to not require EFI is of course␊ |
26 | * possible but would have to be maintained as a separate patch because it is␊ |
27 | * unlikely that Apple wishes to add legacy support to their kernel.␊ |
28 | *␊ |
29 | * As you can see from the Apple-supplied code in bootstruct.c, it seems that␊ |
30 | * the intention was clearly to modify this booter to provide EFI-like structures␊ |
31 | * to the kernel rather than modifying the kernel to handle non-EFI stuff. This␊ |
32 | * makes a lot of sense from an engineering point of view as it means the kernel␊ |
33 | * for the as yet unreleased EFI-only Macs could still be booted by the non-EFI␊ |
34 | * DTK systems so long as the kernel checked to ensure the boot tables were␊ |
35 | * filled in appropriately.␉Modern xnu requires a system table and a runtime␊ |
36 | * services table and performs no checks whatsoever to ensure the pointers to␊ |
37 | * these tables are non-NULL. Therefore, any modern xnu kernel will page fault␊ |
38 | * early on in the boot process if the system table pointer is zero.␊ |
39 | *␊ |
40 | * Even before that happens, the tsc_init function in modern xnu requires the FSB␊ |
41 | * Frequency to be a property in the /efi/platform node of the device tree or else␊ |
42 | * it panics the bootstrap process very early on.␊ |
43 | *␊ |
44 | * As of this writing, the current implementation found here is good enough␊ |
45 | * to make the currently available xnu kernel boot without modification on a␊ |
46 | * system with an appropriate processor. With a minor source modification to␊ |
47 | * the tsc_init function to remove the explicit check for Core or Core 2␊ |
48 | * processors the kernel can be made to boot on other processors so long as␊ |
49 | * the code can be executed by the processor and the machine contains the␊ |
50 | * necessary hardware.␊ |
51 | */␊ |
52 | ␊ |
53 | /*==========================================================================␊ |
54 | * Utility function to make a device tree string from an EFI_GUID␊ |
55 | */␊ |
56 | static inline char * mallocStringForGuid(EFI_GUID const *pGuid)␊ |
57 | {␊ |
58 | ␉char *string = malloc(37);␊ |
59 | ␉efi_guid_unparse_upper(pGuid, string);␊ |
60 | ␉return string;␊ |
61 | }␊ |
62 | ␊ |
63 | /*==========================================================================␊ |
64 | * Function to map 32 bit physical address to 64 bit virtual address␊ |
65 | */␊ |
66 | static uint64_t ptov64(uint32_t addr)␊ |
67 | {␊ |
68 | ␉return ((uint64_t)addr | 0xFFFFFF8000000000ULL);␊ |
69 | }␊ |
70 | ␊ |
71 | /*==========================================================================␊ |
72 | * Fake EFI implementation␊ |
73 | */␊ |
74 | ␊ |
75 | /* Identify ourselves as the EFI firmware vendor */␊ |
76 | static EFI_CHAR16 const FIRMWARE_VENDOR[] = {'C','h','a','m','e','l','e','o','n','_','2','.','2', 0};␊ |
77 | static EFI_UINT32 const FIRMWARE_REVISION = 132; /* FIXME: Find a constant for this. */␊ |
78 | ␊ |
79 | // Bungo␊ |
80 | /* Default platform system_id (fix by IntVar)␊ |
81 | static EFI_CHAR8 const SYSTEM_ID[] = "0123456789ABCDEF"; //random value gen by uuidgen␊ |
82 | */␊ |
83 | ␊ |
84 | /* Just a ret instruction */␊ |
85 | static uint8_t const VOIDRET_INSTRUCTIONS[] = {0xc3};␊ |
86 | ␊ |
87 | /* movl $0x80000003,%eax; ret */␊ |
88 | static uint8_t const UNSUPPORTEDRET_INSTRUCTIONS_32[] = {0xb8, 0x03, 0x00, 0x00, 0x80, 0xc3};␊ |
89 | static uint8_t const UNSUPPORTEDRET_INSTRUCTIONS_64[] = {0x48, 0xb8, 0x03, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0xc3};␊ |
90 | ␊ |
91 | EFI_SYSTEM_TABLE_32 *gST32 = NULL;␊ |
92 | EFI_SYSTEM_TABLE_64 *gST64 = NULL;␊ |
93 | Node *gEfiConfigurationTableNode = NULL;␊ |
94 | ␊ |
95 | extern EFI_STATUS addConfigurationTable(EFI_GUID const *pGuid, void *table, char const *alias)␊ |
96 | {␊ |
97 | ␉EFI_UINTN i = 0;␊ |
98 | ␊ |
99 | ␉//Azi: as is, cpu's with em64t will use EFI64 on pre 10.6 systems,␊ |
100 | ␉// wich seems to cause no problem. In case it does, force i386 arch.␊ |
101 | ␉if (archCpuType == CPU_TYPE_I386)␊ |
102 | ␉{␊ |
103 | ␉␉i = gST32->NumberOfTableEntries;␊ |
104 | ␉}␊ |
105 | ␉else␊ |
106 | ␉{␊ |
107 | ␉␉i = gST64->NumberOfTableEntries;␊ |
108 | ␉}␊ |
109 | ␊ |
110 | ␉// We only do adds, not modifications and deletes like InstallConfigurationTable␊ |
111 | ␉if (i >= MAX_CONFIGURATION_TABLE_ENTRIES)␊ |
112 | ␉{␊ |
113 | ␉␉stop("Ran out of space for configuration tables. Increase the reserved size in the code.\n");␊ |
114 | ␉}␊ |
115 | ␊ |
116 | ␉if (pGuid == NULL)␊ |
117 | ␉{␊ |
118 | ␉␉return EFI_INVALID_PARAMETER;␊ |
119 | ␉}␊ |
120 | ␊ |
121 | ␉if (table != NULL)␊ |
122 | ␉{␊ |
123 | ␉␉// FIXME␊ |
124 | ␉␉//((EFI_CONFIGURATION_TABLE_64 *)gST->ConfigurationTable)[i].VendorGuid = *pGuid;␊ |
125 | ␉␉//((EFI_CONFIGURATION_TABLE_64 *)gST->ConfigurationTable)[i].VendorTable = (EFI_PTR64)table;␊ |
126 | ␊ |
127 | ␉␉//++gST->NumberOfTableEntries;␊ |
128 | ␊ |
129 | ␉␉Node *tableNode = DT__AddChild(gEfiConfigurationTableNode, mallocStringForGuid(pGuid));␊ |
130 | ␊ |
131 | ␉␉// Use the pointer to the GUID we just stuffed into the system table␊ |
132 | ␉␉DT__AddProperty(tableNode, "guid", sizeof(EFI_GUID), (void*)pGuid);␊ |
133 | ␊ |
134 | ␉␉// The "table" property is the 32-bit (in our implementation) physical address of the table␊ |
135 | ␉␉DT__AddProperty(tableNode, "table", sizeof(void*) * 2, table);␊ |
136 | ␊ |
137 | ␉␉// Assume the alias pointer is a global or static piece of data␊ |
138 | ␉␉if (alias != NULL)␊ |
139 | ␉␉{␊ |
140 | ␉␉␉DT__AddProperty(tableNode, "alias", strlen(alias)+1, (char*)alias);␊ |
141 | ␉␉}␊ |
142 | ␊ |
143 | ␉␉return EFI_SUCCESS;␊ |
144 | ␉}␊ |
145 | ␉return EFI_UNSUPPORTED;␊ |
146 | }␊ |
147 | ␊ |
148 | //Azi: crc32 done in place, on the cases were it wasn't.␊ |
149 | /*static inline void fixupEfiSystemTableCRC32(EFI_SYSTEM_TABLE_64 *efiSystemTable)␊ |
150 | {␊ |
151 | ␉efiSystemTable->Hdr.CRC32 = 0;␊ |
152 | ␉efiSystemTable->Hdr.CRC32 = crc32(0L, efiSystemTable, efiSystemTable->Hdr.HeaderSize);␊ |
153 | }*/␊ |
154 | ␊ |
155 | /*␊ |
156 | * What we do here is simply allocate a fake EFI system table and a fake EFI␊ |
157 | * runtime services table.␊ |
158 | *␊ |
159 | * Because we build against modern headers with kBootArgsRevision 4 we␊ |
160 | * also take care to set efiMode = 32.␊ |
161 | */␊ |
162 | void setupEfiTables32(void)␊ |
163 | {␊ |
164 | ␉// We use the fake_efi_pages struct so that we only need to do one kernel␊ |
165 | ␉// memory allocation for all needed EFI data. Otherwise, small allocations␊ |
166 | ␉// like the FIRMWARE_VENDOR string would take up an entire page.␊ |
167 | ␉// NOTE WELL: Do NOT assume this struct has any particular layout within itself.␊ |
168 | ␉// It is absolutely not intended to be publicly exposed anywhere␊ |
169 | ␉// We say pages (plural) although right now we are well within the 1 page size␊ |
170 | ␉// and probably will stay that way.␊ |
171 | ␉struct fake_efi_pages␊ |
172 | ␉{␊ |
173 | ␉␉EFI_SYSTEM_TABLE_32 efiSystemTable;␊ |
174 | ␉␉EFI_RUNTIME_SERVICES_32 efiRuntimeServices;␊ |
175 | ␉␉EFI_CONFIGURATION_TABLE_32 efiConfigurationTable[MAX_CONFIGURATION_TABLE_ENTRIES];␊ |
176 | ␉␉EFI_CHAR16 firmwareVendor[sizeof(FIRMWARE_VENDOR)/sizeof(EFI_CHAR16)];␊ |
177 | ␉␉uint8_t voidret_instructions[sizeof(VOIDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
178 | ␉␉uint8_t unsupportedret_instructions[sizeof(UNSUPPORTEDRET_INSTRUCTIONS_32)/sizeof(uint8_t)];␊ |
179 | ␉};␊ |
180 | ␉␊ |
181 | ␉struct fake_efi_pages *fakeEfiPages = (struct fake_efi_pages*)AllocateKernelMemory(sizeof(struct fake_efi_pages));␊ |
182 | ␉␊ |
183 | ␉// Zero out all the tables in case fields are added later␊ |
184 | ␉//bzero(fakeEfiPages, sizeof(struct fake_efi_pages));␊ |
185 | ␉␊ |
186 | ␉// --------------------------------------------------------------------␊ |
187 | ␉// Initialize some machine code that will return EFI_UNSUPPORTED for␊ |
188 | ␉// functions returning int and simply return for void functions.␊ |
189 | ␉memcpy(fakeEfiPages->voidret_instructions, VOIDRET_INSTRUCTIONS, sizeof(VOIDRET_INSTRUCTIONS));␊ |
190 | ␉memcpy(fakeEfiPages->unsupportedret_instructions, UNSUPPORTEDRET_INSTRUCTIONS_32, sizeof(UNSUPPORTEDRET_INSTRUCTIONS_32));␊ |
191 | ␉␊ |
192 | ␉// --------------------------------------------------------------------␊ |
193 | ␉// System table␊ |
194 | ␉EFI_SYSTEM_TABLE_32 *efiSystemTable = gST32 = &fakeEfiPages->efiSystemTable;␊ |
195 | ␉efiSystemTable->Hdr.Signature = EFI_SYSTEM_TABLE_SIGNATURE;␊ |
196 | ␉efiSystemTable->Hdr.Revision = EFI_SYSTEM_TABLE_REVISION;␊ |
197 | ␉efiSystemTable->Hdr.HeaderSize = sizeof(EFI_SYSTEM_TABLE_32);␊ |
198 | ␉efiSystemTable->Hdr.CRC32 = 0; // Initialize to zero and then do CRC32␊ |
199 | ␉efiSystemTable->Hdr.Reserved = 0;␊ |
200 | ␉␊ |
201 | ␉efiSystemTable->FirmwareVendor = (EFI_PTR32)&fakeEfiPages->firmwareVendor;␊ |
202 | ␉memcpy(fakeEfiPages->firmwareVendor, FIRMWARE_VENDOR, sizeof(FIRMWARE_VENDOR));␊ |
203 | ␉efiSystemTable->FirmwareRevision = FIRMWARE_REVISION;␊ |
204 | ␉␊ |
205 | ␉// XXX: We may need to have basic implementations of ConIn/ConOut/StdErr␊ |
206 | ␉// The EFI spec states that all handles are invalid after boot services have been␊ |
207 | ␉// exited so we can probably get by with leaving the handles as zero.␊ |
208 | ␉efiSystemTable->ConsoleInHandle = 0;␊ |
209 | ␉efiSystemTable->ConIn = 0;␊ |
210 | ␊ |
211 | ␉efiSystemTable->ConsoleOutHandle = 0;␊ |
212 | ␉efiSystemTable->ConOut = 0;␊ |
213 | ␊ |
214 | ␉efiSystemTable->StandardErrorHandle = 0;␊ |
215 | ␉efiSystemTable->StdErr = 0;␊ |
216 | ␊ |
217 | ␉efiSystemTable->RuntimeServices = (EFI_PTR32)&fakeEfiPages->efiRuntimeServices;␊ |
218 | ␊ |
219 | ␉// According to the EFI spec, BootServices aren't valid after the␊ |
220 | ␉// boot process is exited so we can probably do without it.␊ |
221 | ␉// Apple didn't provide a definition for it in pexpert/i386/efi.h␊ |
222 | ␉// so I'm guessing they don't use it.␊ |
223 | ␉efiSystemTable->BootServices = 0;␊ |
224 | ␊ |
225 | ␉efiSystemTable->NumberOfTableEntries = 0;␊ |
226 | ␉efiSystemTable->ConfigurationTable = (EFI_PTR32)fakeEfiPages->efiConfigurationTable;␊ |
227 | ␊ |
228 | ␉// We're done. Now CRC32 the thing so the kernel will accept it.␊ |
229 | ␉// Must be initialized to zero before CRC32, done above.␊ |
230 | ␉gST32->Hdr.CRC32 = crc32(0L, gST32, gST32->Hdr.HeaderSize);␊ |
231 | ␊ |
232 | ␉// --------------------------------------------------------------------␊ |
233 | ␉// Runtime services␊ |
234 | ␉EFI_RUNTIME_SERVICES_32 *efiRuntimeServices = &fakeEfiPages->efiRuntimeServices;␊ |
235 | ␉efiRuntimeServices->Hdr.Signature = EFI_RUNTIME_SERVICES_SIGNATURE;␊ |
236 | ␉efiRuntimeServices->Hdr.Revision = EFI_RUNTIME_SERVICES_REVISION;␊ |
237 | ␉efiRuntimeServices->Hdr.HeaderSize = sizeof(EFI_RUNTIME_SERVICES_32);␊ |
238 | ␉efiRuntimeServices->Hdr.CRC32 = 0;␊ |
239 | ␉efiRuntimeServices->Hdr.Reserved = 0;␊ |
240 | ␊ |
241 | ␉// There are a number of function pointers in the efiRuntimeServices table.␊ |
242 | ␉// These are the Foundation (e.g. core) services and are expected to be present on␊ |
243 | ␉// all EFI-compliant machines.␉Some kernel extensions (notably AppleEFIRuntime)␊ |
244 | ␉// will call these without checking to see if they are null.␊ |
245 | ␉//␊ |
246 | ␉// We don't really feel like doing an EFI implementation in the bootloader␊ |
247 | ␉// but it is nice if we can at least prevent a complete crash by␊ |
248 | ␉// at least providing some sort of implementation until one can be provided␊ |
249 | ␉// nicely in a kext.␊ |
250 | ␉void (*voidret_fp)() = (void*)fakeEfiPages->voidret_instructions;␊ |
251 | ␉void (*unsupportedret_fp)() = (void*)fakeEfiPages->unsupportedret_instructions;␊ |
252 | ␉efiRuntimeServices->GetTime = (EFI_PTR32)unsupportedret_fp;␊ |
253 | ␉efiRuntimeServices->SetTime = (EFI_PTR32)unsupportedret_fp;␊ |
254 | ␉efiRuntimeServices->GetWakeupTime = (EFI_PTR32)unsupportedret_fp;␊ |
255 | ␉efiRuntimeServices->SetWakeupTime = (EFI_PTR32)unsupportedret_fp;␊ |
256 | ␉efiRuntimeServices->SetVirtualAddressMap = (EFI_PTR32)unsupportedret_fp;␊ |
257 | ␉efiRuntimeServices->ConvertPointer = (EFI_PTR32)unsupportedret_fp;␊ |
258 | ␉efiRuntimeServices->GetVariable = (EFI_PTR32)unsupportedret_fp;␊ |
259 | ␉efiRuntimeServices->GetNextVariableName = (EFI_PTR32)unsupportedret_fp;␊ |
260 | ␉efiRuntimeServices->SetVariable = (EFI_PTR32)unsupportedret_fp;␊ |
261 | ␉efiRuntimeServices->GetNextHighMonotonicCount = (EFI_PTR32)unsupportedret_fp;␊ |
262 | ␉efiRuntimeServices->ResetSystem = (EFI_PTR32)voidret_fp;␊ |
263 | ␊ |
264 | ␉// We're done.␉Now CRC32 the thing so the kernel will accept it␊ |
265 | ␉efiRuntimeServices->Hdr.CRC32 = crc32(0L, efiRuntimeServices, efiRuntimeServices->Hdr.HeaderSize);␊ |
266 | ␊ |
267 | ␉// --------------------------------------------------------------------␊ |
268 | ␉// Finish filling in the rest of the boot args that we need.␊ |
269 | ␉bootArgs->efiSystemTable = (uint32_t)efiSystemTable;␊ |
270 | ␉bootArgs->efiMode = kBootArgsEfiMode32;␊ |
271 | ␊ |
272 | ␉// The bootArgs structure as a whole is bzero'd so we don't need to fill in␊ |
273 | ␉// things like efiRuntimeServices* and what not.␊ |
274 | ␉//␊ |
275 | ␉// In fact, the only code that seems to use that is the hibernate code so it␊ |
276 | ␉// knows not to save the pages.␉ It even checks to make sure its nonzero.␊ |
277 | }␊ |
278 | ␊ |
279 | void setupEfiTables64(void)␊ |
280 | {␊ |
281 | ␉struct fake_efi_pages␊ |
282 | ␉{␊ |
283 | ␉␉EFI_SYSTEM_TABLE_64 efiSystemTable;␊ |
284 | ␉␉EFI_RUNTIME_SERVICES_64 efiRuntimeServices;␊ |
285 | ␉␉EFI_CONFIGURATION_TABLE_64 efiConfigurationTable[MAX_CONFIGURATION_TABLE_ENTRIES];␊ |
286 | ␉␉EFI_CHAR16 firmwareVendor[sizeof(FIRMWARE_VENDOR)/sizeof(EFI_CHAR16)];␊ |
287 | ␉␉uint8_t voidret_instructions[sizeof(VOIDRET_INSTRUCTIONS)/sizeof(uint8_t)];␊ |
288 | ␉␉uint8_t unsupportedret_instructions[sizeof(UNSUPPORTEDRET_INSTRUCTIONS_64)/sizeof(uint8_t)];␊ |
289 | ␉};␊ |
290 | ␊ |
291 | ␉struct fake_efi_pages *fakeEfiPages = (struct fake_efi_pages*)AllocateKernelMemory(sizeof(struct fake_efi_pages));␊ |
292 | ␊ |
293 | ␉// Zero out all the tables in case fields are added later␊ |
294 | ␉//bzero(fakeEfiPages, sizeof(struct fake_efi_pages));␊ |
295 | ␊ |
296 | ␉// --------------------------------------------------------------------␊ |
297 | ␉// Initialize some machine code that will return EFI_UNSUPPORTED for␊ |
298 | ␉// functions returning int and simply return for void functions.␊ |
299 | ␉memcpy(fakeEfiPages->voidret_instructions, VOIDRET_INSTRUCTIONS, sizeof(VOIDRET_INSTRUCTIONS));␊ |
300 | ␉memcpy(fakeEfiPages->unsupportedret_instructions, UNSUPPORTEDRET_INSTRUCTIONS_64, sizeof(UNSUPPORTEDRET_INSTRUCTIONS_64));␊ |
301 | ␊ |
302 | ␉// --------------------------------------------------------------------␊ |
303 | ␉// System table␊ |
304 | ␉EFI_SYSTEM_TABLE_64 *efiSystemTable = gST64 = &fakeEfiPages->efiSystemTable;␊ |
305 | ␉efiSystemTable->Hdr.Signature = EFI_SYSTEM_TABLE_SIGNATURE;␊ |
306 | ␉efiSystemTable->Hdr.Revision = EFI_SYSTEM_TABLE_REVISION;␊ |
307 | ␉efiSystemTable->Hdr.HeaderSize = sizeof(EFI_SYSTEM_TABLE_64);␊ |
308 | ␉efiSystemTable->Hdr.CRC32 = 0; // Initialize to zero and then do CRC32␊ |
309 | ␉efiSystemTable->Hdr.Reserved = 0;␊ |
310 | ␊ |
311 | ␉efiSystemTable->FirmwareVendor = ptov64((EFI_PTR32)&fakeEfiPages->firmwareVendor);␊ |
312 | ␉memcpy(fakeEfiPages->firmwareVendor, FIRMWARE_VENDOR, sizeof(FIRMWARE_VENDOR));␊ |
313 | ␉efiSystemTable->FirmwareRevision = FIRMWARE_REVISION;␊ |
314 | ␊ |
315 | ␉// XXX: We may need to have basic implementations of ConIn/ConOut/StdErr␊ |
316 | ␉// The EFI spec states that all handles are invalid after boot services have been␊ |
317 | ␉// exited so we can probably get by with leaving the handles as zero.␊ |
318 | ␉efiSystemTable->ConsoleInHandle = 0;␊ |
319 | ␉efiSystemTable->ConIn = 0;␊ |
320 | ␊ |
321 | ␉efiSystemTable->ConsoleOutHandle = 0;␊ |
322 | ␉efiSystemTable->ConOut = 0;␊ |
323 | ␊ |
324 | ␉efiSystemTable->StandardErrorHandle = 0;␊ |
325 | ␉efiSystemTable->StdErr = 0;␊ |
326 | ␊ |
327 | ␉efiSystemTable->RuntimeServices = ptov64((EFI_PTR32)&fakeEfiPages->efiRuntimeServices);␊ |
328 | ␉// According to the EFI spec, BootServices aren't valid after the␊ |
329 | ␉// boot process is exited so we can probably do without it.␊ |
330 | ␉// Apple didn't provide a definition for it in pexpert/i386/efi.h␊ |
331 | ␉// so I'm guessing they don't use it.␊ |
332 | ␉efiSystemTable->BootServices = 0;␊ |
333 | ␊ |
334 | ␉efiSystemTable->NumberOfTableEntries = 0;␊ |
335 | ␉efiSystemTable->ConfigurationTable = ptov64((EFI_PTR32)fakeEfiPages->efiConfigurationTable);␊ |
336 | ␊ |
337 | ␉// We're done.␉Now CRC32 the thing so the kernel will accept it␊ |
338 | ␉gST64->Hdr.CRC32 = crc32(0L, gST64, gST64->Hdr.HeaderSize);␊ |
339 | ␊ |
340 | ␉// --------------------------------------------------------------------␊ |
341 | ␉// Runtime services␊ |
342 | ␉EFI_RUNTIME_SERVICES_64 *efiRuntimeServices = &fakeEfiPages->efiRuntimeServices;␊ |
343 | ␉efiRuntimeServices->Hdr.Signature = EFI_RUNTIME_SERVICES_SIGNATURE;␊ |
344 | ␉efiRuntimeServices->Hdr.Revision = EFI_RUNTIME_SERVICES_REVISION;␊ |
345 | ␉efiRuntimeServices->Hdr.HeaderSize = sizeof(EFI_RUNTIME_SERVICES_64);␊ |
346 | ␉efiRuntimeServices->Hdr.CRC32 = 0;␊ |
347 | ␉efiRuntimeServices->Hdr.Reserved = 0;␊ |
348 | ␊ |
349 | ␉// There are a number of function pointers in the efiRuntimeServices table.␊ |
350 | ␉// These are the Foundation (e.g. core) services and are expected to be present on␊ |
351 | ␉// all EFI-compliant machines.␉Some kernel extensions (notably AppleEFIRuntime)␊ |
352 | ␉// will call these without checking to see if they are null.␊ |
353 | ␉//␊ |
354 | ␉// We don't really feel like doing an EFI implementation in the bootloader␊ |
355 | ␉// but it is nice if we can at least prevent a complete crash by␊ |
356 | ␉// at least providing some sort of implementation until one can be provided␊ |
357 | ␉// nicely in a kext.␊ |
358 | ␊ |
359 | ␉void (*voidret_fp)() = (void*)fakeEfiPages->voidret_instructions;␊ |
360 | ␉void (*unsupportedret_fp)() = (void*)fakeEfiPages->unsupportedret_instructions;␊ |
361 | ␉efiRuntimeServices->GetTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
362 | ␉efiRuntimeServices->SetTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
363 | ␉efiRuntimeServices->GetWakeupTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
364 | ␉efiRuntimeServices->SetWakeupTime = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
365 | ␉efiRuntimeServices->SetVirtualAddressMap = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
366 | ␉efiRuntimeServices->ConvertPointer = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
367 | ␉efiRuntimeServices->GetVariable = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
368 | ␉efiRuntimeServices->GetNextVariableName = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
369 | ␉efiRuntimeServices->SetVariable = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
370 | ␉efiRuntimeServices->GetNextHighMonotonicCount = ptov64((EFI_PTR32)unsupportedret_fp);␊ |
371 | ␉efiRuntimeServices->ResetSystem = ptov64((EFI_PTR32)voidret_fp);␊ |
372 | ␊ |
373 | ␉// We're done.␉Now CRC32 the thing so the kernel will accept it␊ |
374 | ␉efiRuntimeServices->Hdr.CRC32 = crc32(0L, efiRuntimeServices, efiRuntimeServices->Hdr.HeaderSize);␊ |
375 | ␊ |
376 | ␉// --------------------------------------------------------------------␊ |
377 | ␉// Finish filling in the rest of the boot args that we need.␊ |
378 | ␉bootArgs->efiSystemTable = (uint32_t)efiSystemTable;␊ |
379 | ␉bootArgs->efiMode = kBootArgsEfiMode64;␊ |
380 | ␊ |
381 | ␉// The bootArgs structure as a whole is bzero'd so we don't need to fill in␊ |
382 | ␉// things like efiRuntimeServices* and what not.␊ |
383 | ␉//␊ |
384 | ␉// In fact, the only code that seems to use that is the hibernate code so it␊ |
385 | ␉// knows not to save the pages.␉ It even checks to make sure its nonzero.␊ |
386 | }␊ |
387 | ␊ |
388 | /*␊ |
389 | * In addition to the EFI tables there is also the EFI device tree node.␊ |
390 | * In particular, we need /efi/platform to have an FSBFrequency key. Without it,␊ |
391 | * the tsc_init function will panic very early on in kernel startup, before␊ |
392 | * the console is available.␊ |
393 | */␊ |
394 | ␊ |
395 | /*==========================================================================␊ |
396 | * FSB Frequency detection␊ |
397 | */␊ |
398 | ␊ |
399 | /* These should be const but DT__AddProperty takes char* */␊ |
400 | static const char TSC_Frequency_prop[] = "TSCFrequency";␊ |
401 | static const char FSB_Frequency_prop[] = "FSBFrequency";␊ |
402 | static const char CPU_Frequency_prop[] = "CPUFrequency";␊ |
403 | ␊ |
404 | /*==========================================================================␊ |
405 | * SMBIOS␊ |
406 | */␊ |
407 | ␊ |
408 | /* From Foundation/Efi/Guid/Smbios/SmBios.c */␊ |
409 | EFI_GUID const␉gEfiSmbiosTableGuid = EFI_SMBIOS_TABLE_GUID;␊ |
410 | ␊ |
411 | #define SMBIOS_RANGE_START␉␉0x000F0000␊ |
412 | #define SMBIOS_RANGE_END␉␉0x000FFFFF␊ |
413 | ␊ |
414 | /* '_SM_' in little endian: */␊ |
415 | #define SMBIOS_ANCHOR_UINT32_LE 0x5f4d535f␊ |
416 | ␊ |
417 | #define EFI_ACPI_TABLE_GUID \␊ |
418 | { \␊ |
419 | ␉0xeb9d2d30, 0x2d88, 0x11d3, { 0x9a, 0x16, 0x0, 0x90, 0x27, 0x3f, 0xc1, 0x4d } \␊ |
420 | }␊ |
421 | ␊ |
422 | #define EFI_ACPI_20_TABLE_GUID \␊ |
423 | { \␊ |
424 | ␉0x8868e871, 0xe4f1, 0x11d3, { 0xbc, 0x22, 0x0, 0x80, 0xc7, 0x3c, 0x88, 0x81 } \␊ |
425 | }␊ |
426 | ␊ |
427 | EFI_GUID gEfiAcpiTableGuid = EFI_ACPI_TABLE_GUID;␊ |
428 | EFI_GUID gEfiAcpi20TableGuid = EFI_ACPI_20_TABLE_GUID;␊ |
429 | ␊ |
430 | ␊ |
431 | /*==========================================================================␊ |
432 | * Fake EFI implementation␊ |
433 | */␊ |
434 | ␊ |
435 | /* These should be const but DT__AddProperty takes char* */␊ |
436 | static const char FIRMWARE_REVISION_PROP[] = "firmware-revision";␊ |
437 | static const char FIRMWARE_ABI_PROP[] = "firmware-abi";␊ |
438 | static const char FIRMWARE_VENDOR_PROP[] = "firmware-vendor";␊ |
439 | static const char FIRMWARE_ABI_32_PROP_VALUE[] = "EFI32";␊ |
440 | static const char FIRMWARE_ABI_64_PROP_VALUE[] = "EFI64";␊ |
441 | static const char SYSTEM_ID_PROP[] = "system-id";␊ |
442 | static const char SYSTEM_SERIAL_PROP[] = "SystemSerialNumber";␊ |
443 | static const char SYSTEM_TYPE_PROP[] = "system-type";␊ |
444 | static const char MODEL_PROP[] = "Model";␊ |
445 | static const char BOARDID_PROP[] = "board-id";␊ |
446 | ␊ |
447 | /*␊ |
448 | * Get an smbios option string option to convert to EFI_CHAR16 string␊ |
449 | */␊ |
450 | static EFI_CHAR16* getSmbiosChar16(const char * key, size_t* len)␊ |
451 | {␊ |
452 | ␉const char␉*src = getStringForKey(key, &bootInfo->smbiosConfig);␊ |
453 | ␉EFI_CHAR16*␉ dst = 0;␊ |
454 | ␉size_t␉␉ i = 0;␊ |
455 | ␊ |
456 | ␉if (!key || !(*key) || !len || !src)␊ |
457 | ␉{␊ |
458 | ␉␉return 0;␊ |
459 | ␉}␊ |
460 | ␉␊ |
461 | ␉*len = strlen(src);␊ |
462 | ␉dst = (EFI_CHAR16*) malloc( ((*len)+1) * 2 );␊ |
463 | ␉for (; i < (*len); i++)␊ |
464 | ␉{␊ |
465 | ␉␉dst[i] = src[i];␊ |
466 | ␉}␊ |
467 | ␉dst[(*len)] = '\0';␊ |
468 | ␉*len = ((*len)+1)*2; // return the CHAR16 bufsize including zero terminated CHAR16␊ |
469 | ␉return dst;␊ |
470 | }␊ |
471 | ␊ |
472 | // Bungo␊ |
473 | /*␊ |
474 | * Get the SystemID from the bios dmi info␊ |
475 | ␊ |
476 | static␉EFI_CHAR8* getSmbiosUUID()␊ |
477 | {␊ |
478 | ␉static EFI_CHAR8␉␉ uuid[UUID_LEN];␊ |
479 | ␉int␉␉␉␉␉␉ i, isZero, isOnes;␊ |
480 | ␉SMBByte␉␉␉␉␉*p;␊ |
481 | ␊ |
482 | ␉p = (SMBByte*)Platform.UUID;␊ |
483 | ␊ |
484 | ␉for (i=0, isZero=1, isOnes=1; i<UUID_LEN; i++)␊ |
485 | ␉{␊ |
486 | ␉␉if (p[i] != 0x00)␊ |
487 | ␉␉{␊ |
488 | ␉␉␉isZero = 0;␊ |
489 | ␉␉}␊ |
490 | ␊ |
491 | ␉␉if (p[i] != 0xff)␊ |
492 | ␉␉{␊ |
493 | ␉␉␉isOnes = 0;␊ |
494 | ␉␉}␊ |
495 | ␉}␊ |
496 | ␊ |
497 | ␉if (isZero || isOnes) // empty or setable means: no uuid present␊ |
498 | ␉{␊ |
499 | ␉␉verbose("No UUID present in SMBIOS System Information Table\n");␊ |
500 | ␉␉return 0;␊ |
501 | ␉}␊ |
502 | ␊ |
503 | ␉memcpy(uuid, p, UUID_LEN);␊ |
504 | ␉return uuid;␊ |
505 | }␊ |
506 | ␊ |
507 | ␊ |
508 | // return a binary UUID value from the overriden SystemID and SMUUID if found, ␊ |
509 | // or from the bios if not, or from a fixed value if no bios value is found ␊ |
510 | ␊ |
511 | static EFI_CHAR8* getSystemID()␊ |
512 | {␊ |
513 | ␉// unable to determine UUID for host. Error: 35 fix␊ |
514 | ␉// Rek: new SMsystemid option conforming to smbios notation standards, this option should␊ |
515 | ␉// belong to smbios config only ...␊ |
516 | ␉const char *sysId = getStringForKey(kSystemID, &bootInfo->chameleonConfig);␊ |
517 | ␉EFI_CHAR8*␉ret = getUUIDFromString(sysId);␊ |
518 | ␊ |
519 | ␉if (!sysId || !ret) // try bios dmi info UUID extraction␊ |
520 | ␉{␊ |
521 | ␉␉ret = getSmbiosUUID();␊ |
522 | ␉␉sysId = 0;␊ |
523 | ␉}␊ |
524 | ␊ |
525 | ␉if (!ret)␊ |
526 | ␉{␊ |
527 | ␉␉// no bios dmi UUID available, set a fixed value for system-id␊ |
528 | ␉␉ret=getUUIDFromString((sysId = (const char*) SYSTEM_ID));␊ |
529 | ␉}␊ |
530 | ␉verbose("Customizing SystemID with : %s\n", getStringFromUUID(ret)); // apply a nice formatting to the displayed output␊ |
531 | ␉return ret;␊ |
532 | }␊ |
533 | */␊ |
534 | ␊ |
535 | /*␊ |
536 | * Must be called AFTER setup Acpi because we need to take care of correct␊ |
537 | * facp content to reflect in ioregs␊ |
538 | */␊ |
539 | void setupSystemType()␊ |
540 | {␊ |
541 | ␉Node *node = DT__FindNode("/", false);␊ |
542 | ␉if (node == 0)␊ |
543 | ␉{␊ |
544 | ␉␉stop("Couldn't get root node");␊ |
545 | ␉}␊ |
546 | ␉// we need to write this property after facp parsing␊ |
547 | ␉// Export system-type only if it has been overrriden by the SystemType option␊ |
548 | ␉DT__AddProperty(node, SYSTEM_TYPE_PROP, sizeof(Platform.Type), &Platform.Type);␊ |
549 | }␊ |
550 | ␊ |
551 | void setupEfiDeviceTree(void)␊ |
552 | {␊ |
553 | ␉// EFI_CHAR8*␉ ret = 0; Bungo: not used␊ |
554 | ␉EFI_CHAR16*␉ ret16 = 0;␊ |
555 | ␉size_t␉␉ len = 0;␊ |
556 | ␉Node␉␉*node;␊ |
557 | ␊ |
558 | ␉node = DT__FindNode("/", false);␊ |
559 | ␊ |
560 | ␉if (node == 0)␊ |
561 | ␉{␊ |
562 | ␉␉stop("Couldn't get root node");␊ |
563 | ␉}␊ |
564 | ␊ |
565 | ␉// We could also just do DT__FindNode("/efi/platform", true)␊ |
566 | ␉// But I think eventually we want to fill stuff in the efi node␊ |
567 | ␉// too so we might as well create it so we have a pointer for it too.␊ |
568 | ␉node = DT__AddChild(node, "efi");␊ |
569 | ␊ |
570 | ␉if (archCpuType == CPU_TYPE_I386)␊ |
571 | ␉{␊ |
572 | ␉␉DT__AddProperty(node, FIRMWARE_ABI_PROP, sizeof(FIRMWARE_ABI_32_PROP_VALUE), (char*)FIRMWARE_ABI_32_PROP_VALUE);␊ |
573 | ␉}␊ |
574 | ␉else␊ |
575 | ␉{␊ |
576 | ␉␉DT__AddProperty(node, FIRMWARE_ABI_PROP, sizeof(FIRMWARE_ABI_64_PROP_VALUE), (char*)FIRMWARE_ABI_64_PROP_VALUE);␊ |
577 | ␉}␊ |
578 | ␊ |
579 | ␉DT__AddProperty(node, FIRMWARE_REVISION_PROP, sizeof(FIRMWARE_REVISION), (EFI_UINT32*)&FIRMWARE_REVISION);␊ |
580 | ␉DT__AddProperty(node, FIRMWARE_VENDOR_PROP, sizeof(FIRMWARE_VENDOR), (EFI_CHAR16*)FIRMWARE_VENDOR);␊ |
581 | ␊ |
582 | ␉// TODO: Fill in other efi properties if necessary␊ |
583 | ␊ |
584 | ␉// Set up the /efi/runtime-services table node similar to the way a child node of configuration-table␊ |
585 | ␉// is set up. That is, name and table properties␊ |
586 | ␉Node *runtimeServicesNode = DT__AddChild(node, "runtime-services");␊ |
587 | ␊ |
588 | ␉if (archCpuType == CPU_TYPE_I386)␊ |
589 | ␉{␊ |
590 | ␉␉// The value of the table property is the 32-bit physical address for the RuntimeServices table.␊ |
591 | ␉␉// Since the EFI system table already has a pointer to it, we simply use the address of that pointer␊ |
592 | ␉␉// for the pointer to the property data. Warning.. DT finalization calls free on that but we're not␊ |
593 | ␉␉// the only thing to use a non-malloc'd pointer for something in the DT␊ |
594 | ␊ |
595 | ␉␉DT__AddProperty(runtimeServicesNode, "table", sizeof(uint64_t), &gST32->RuntimeServices);␊ |
596 | ␉}␊ |
597 | ␉else␊ |
598 | ␉{␊ |
599 | ␉␉DT__AddProperty(runtimeServicesNode, "table", sizeof(uint64_t), &gST64->RuntimeServices);␊ |
600 | ␉}␊ |
601 | ␊ |
602 | ␉// Set up the /efi/configuration-table node which will eventually have several child nodes for␊ |
603 | ␉// all of the configuration tables needed by various kernel extensions.␊ |
604 | ␉gEfiConfigurationTableNode = DT__AddChild(node, "configuration-table");␊ |
605 | ␊ |
606 | ␉// Now fill in the /efi/platform Node␊ |
607 | ␉Node *efiPlatformNode = DT__AddChild(node, "platform");␊ |
608 | ␊ |
609 | ␉// NOTE WELL: If you do add FSB Frequency detection, make sure to store␊ |
610 | ␉// the value in the fsbFrequency global and not an malloc'd pointer␊ |
611 | ␉// because the DT_AddProperty function does not copy its args.␊ |
612 | ␊ |
613 | ␉if (Platform.CPU.FSBFrequency != 0)␊ |
614 | ␉{␊ |
615 | ␉␉DT__AddProperty(efiPlatformNode, FSB_Frequency_prop, sizeof(uint64_t), &Platform.CPU.FSBFrequency);␊ |
616 | ␉}␊ |
617 | ␊ |
618 | ␉// Export TSC and CPU frequencies for use by the kernel or KEXTs␊ |
619 | ␉if (Platform.CPU.TSCFrequency != 0)␊ |
620 | ␉{␊ |
621 | ␉␉DT__AddProperty(efiPlatformNode, TSC_Frequency_prop, sizeof(uint64_t), &Platform.CPU.TSCFrequency);␊ |
622 | ␉}␊ |
623 | ␊ |
624 | ␉if (Platform.CPU.CPUFrequency != 0)␊ |
625 | ␉{␊ |
626 | ␉␉DT__AddProperty(efiPlatformNode, CPU_Frequency_prop, sizeof(uint64_t), &Platform.CPU.CPUFrequency);␊ |
627 | ␉}␊ |
628 | ␊ |
629 | ␉// Bungo␊ |
630 | ␉/* Export system-id. Can be disabled with SystemId=No in com.apple.Boot.plist␊ |
631 | ␉if ((ret=getSystemID()))␊ |
632 | ␉{␊ |
633 | ␉␉DT__AddProperty(efiPlatformNode, SYSTEM_ID_PROP, UUID_LEN, (EFI_UINT32*) ret);␊ |
634 | ␉}␊ |
635 | ␉*/␊ |
636 | ␉␉DT__AddProperty(efiPlatformNode, SYSTEM_ID_PROP, UUID_LEN, Platform.UUID);␊ |
637 | ␉//␊ |
638 | ␊ |
639 | ␉// Export SystemSerialNumber if present␊ |
640 | ␉if ((ret16=getSmbiosChar16("SMserial", &len)))␊ |
641 | ␉{␊ |
642 | ␉␉DT__AddProperty(efiPlatformNode, SYSTEM_SERIAL_PROP, len, ret16);␊ |
643 | ␉}␊ |
644 | ␊ |
645 | ␉// Export Model if present␊ |
646 | ␉if ((ret16=getSmbiosChar16("SMproductname", &len)))␊ |
647 | ␉{␊ |
648 | ␉␉DT__AddProperty(efiPlatformNode, MODEL_PROP, len, ret16);␊ |
649 | ␉}␊ |
650 | ␊ |
651 | ␉// Fill /efi/device-properties node.␊ |
652 | ␉setupDeviceProperties(node);␊ |
653 | }␊ |
654 | ␊ |
655 | /*␊ |
656 | * Must be called AFTER getSmbios␊ |
657 | */␊ |
658 | void setupBoardId()␊ |
659 | {␊ |
660 | ␉Node *node;␊ |
661 | ␉node = DT__FindNode("/", false);␊ |
662 | ␉if (node == 0)␊ |
663 | ␉{␊ |
664 | ␉␉stop("Couldn't get root node");␊ |
665 | ␉}␊ |
666 | ␉const char *boardid = getStringForKey("SMboardproduct", &bootInfo->smbiosConfig);␊ |
667 | ␉if (boardid)␊ |
668 | ␉{␊ |
669 | ␉␉DT__AddProperty(node, BOARDID_PROP, strlen(boardid)+1, (EFI_CHAR16*)boardid);␊ |
670 | ␉}␊ |
671 | }␊ |
672 | ␊ |
673 | /*␊ |
674 | * Populate the chosen node␊ |
675 | */␊ |
676 | ␊ |
677 | void setupChosenNode()␊ |
678 | {␊ |
679 | ␉Node *chosenNode;␊ |
680 | ␉chosenNode = DT__FindNode("/chosen", false);␊ |
681 | ␉if (chosenNode == 0)␊ |
682 | ␉{␊ |
683 | ␉␉stop("Couldn't get chosen node");␊ |
684 | ␉}␊ |
685 | ␊ |
686 | ␉int bootUUIDLength = strlen(gBootUUIDString);␊ |
687 | ␉if (bootUUIDLength)␊ |
688 | ␉{␊ |
689 | ␉␉DT__AddProperty(chosenNode, "boot-uuid", bootUUIDLength + 1, gBootUUIDString);␊ |
690 | ␉}␊ |
691 | }␊ |
692 | ␊ |
693 | /*␊ |
694 | * Load the smbios.plist override config file if any␊ |
695 | */␊ |
696 | static void setupSmbiosConfigFile(const char *filename)␊ |
697 | {␊ |
698 | ␉char␉␉dirSpecSMBIOS[128];␊ |
699 | ␉const char␉*override_pathname = NULL;␊ |
700 | ␉int␉␉len = 0, err = 0;␊ |
701 | ␉extern void scan_mem();␊ |
702 | ␊ |
703 | ␉// Take in account user overriding␊ |
704 | ␉if (getValueForKey(kSMBIOSKey, &override_pathname, &len, &bootInfo->chameleonConfig) && len > 0)␊ |
705 | ␉{␊ |
706 | ␉␉// Specify a path to a file, e.g. SMBIOS=/Extra/macProXY.plist␊ |
707 | ␉␉sprintf(dirSpecSMBIOS, override_pathname);␊ |
708 | ␉␉err = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig);␊ |
709 | ␉}␊ |
710 | ␉else␊ |
711 | ␉{␊ |
712 | ␉␉// Check selected volume's Extra.␊ |
713 | ␉␉sprintf(dirSpecSMBIOS, "/Extra/%s", filename);␊ |
714 | ␉␉if ( (err = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig)) )␊ |
715 | ␉␉{␊ |
716 | ␉␉␉// Check booter volume/rdbt Extra.␊ |
717 | ␉␉␉sprintf(dirSpecSMBIOS, "bt(0,0)/Extra/%s", filename);␊ |
718 | ␉␉␉err = loadConfigFile(dirSpecSMBIOS, &bootInfo->smbiosConfig);␊ |
719 | ␉␉}␊ |
720 | ␉}␊ |
721 | ␊ |
722 | ␉if (err)␊ |
723 | ␉{␊ |
724 | ␉␉verbose("No SMBIOS replacement found.\n");␊ |
725 | ␉}␊ |
726 | ␊ |
727 | ␉// get a chance to scan mem dynamically if user asks for it while having the config options␊ |
728 | ␉// loaded as well, as opposed to when it was in scan_platform(); also load the orig. smbios␊ |
729 | ␉// so that we can access dmi info, without patching the smbios yet.␊ |
730 | ␉scan_mem(); ␊ |
731 | }␊ |
732 | ␊ |
733 | /*␊ |
734 | * Installs all the needed configuration table entries␊ |
735 | */␊ |
736 | static void setupEfiConfigurationTable()␊ |
737 | {␊ |
738 | ␉smbios_p = (EFI_PTR32)getSmbios(SMBIOS_PATCHED);␊ |
739 | ␉addConfigurationTable(&gEfiSmbiosTableGuid, &smbios_p, NULL);␊ |
740 | ␊ |
741 | ␉setupBoardId(); //need to be called after getSmbios␊ |
742 | ␊ |
743 | ␉// Setup ACPI with DSDT overrides (mackerintel's patch)␊ |
744 | ␉setupAcpi();␊ |
745 | ␊ |
746 | ␉// We've obviously changed the count.. so fix up the CRC32␊ |
747 | ␉if (archCpuType == CPU_TYPE_I386)␊ |
748 | ␉{␊ |
749 | ␉␉gST32->Hdr.CRC32 = 0;␊ |
750 | ␉␉gST32->Hdr.CRC32 = crc32(0L, gST32, gST32->Hdr.HeaderSize);␊ |
751 | ␉}␊ |
752 | ␉else␊ |
753 | ␉{␊ |
754 | ␉␉gST64->Hdr.CRC32 = 0;␊ |
755 | ␉␉gST64->Hdr.CRC32 = crc32(0L, gST64, gST64->Hdr.HeaderSize);␊ |
756 | ␉}␊ |
757 | ␊ |
758 | ␉// Setup the chosen node␊ |
759 | ␉setupChosenNode();␊ |
760 | }␊ |
761 | ␊ |
762 | void saveOriginalSMBIOS(void)␊ |
763 | {␊ |
764 | ␉Node *node;␊ |
765 | ␉SMBEntryPoint *origeps;␊ |
766 | ␉void *tableAddress;␊ |
767 | ␊ |
768 | ␉node = DT__FindNode("/efi/platform", false);␊ |
769 | ␉if (!node)␊ |
770 | ␉{␊ |
771 | ␉␉verbose("/efi/platform node not found\n");␊ |
772 | ␉␉return;␊ |
773 | ␉}␊ |
774 | ␊ |
775 | ␉origeps = getSmbios(SMBIOS_ORIGINAL);␊ |
776 | ␉if (!origeps)␊ |
777 | ␉{␊ |
778 | ␉␉return;␊ |
779 | ␉}␊ |
780 | ␊ |
781 | ␉tableAddress = (void *)AllocateKernelMemory(origeps->dmi.tableLength);␊ |
782 | ␉if (!tableAddress)␊ |
783 | ␉{␊ |
784 | ␉␉return;␊ |
785 | ␉}␊ |
786 | ␊ |
787 | ␉memcpy(tableAddress, (void *)origeps->dmi.tableAddress, origeps->dmi.tableLength);␊ |
788 | ␉DT__AddProperty(node, "SMBIOS-ORIG", origeps->dmi.tableLength, tableAddress); // Bungo: changed from SMBIOS to SMBIOS-ORIG to differentiate␊ |
789 | }␊ |
790 | ␊ |
791 | /*␊ |
792 | * Entrypoint from boot.c␊ |
793 | */␊ |
794 | void setupFakeEfi(void)␊ |
795 | {␊ |
796 | ␉// Generate efi device strings ␊ |
797 | ␉setup_pci_devs(root_pci_dev);␊ |
798 | ␊ |
799 | ␉readSMBIOSInfo(getSmbios(SMBIOS_ORIGINAL));␊ |
800 | ␊ |
801 | ␉// load smbios.plist file if any␊ |
802 | ␉setupSmbiosConfigFile("smbios.plist");␊ |
803 | ␊ |
804 | ␉setupSMBIOSTable();␊ |
805 | ␊ |
806 | ␉// Initialize the base table␊ |
807 | ␉if (archCpuType == CPU_TYPE_I386)␊ |
808 | ␉{␊ |
809 | ␉␉setupEfiTables32();␊ |
810 | ␉}␊ |
811 | ␉else␊ |
812 | ␉{␊ |
813 | ␉␉setupEfiTables64();␊ |
814 | ␉}␊ |
815 | ␊ |
816 | ␉// Initialize the device tree␊ |
817 | ␉setupEfiDeviceTree();␊ |
818 | ␊ |
819 | ␉saveOriginalSMBIOS();␊ |
820 | ␊ |
821 | ␉// Add configuration table entries to both the services table and the device tree␊ |
822 | ␉setupEfiConfigurationTable();␊ |
823 | }␊ |
824 | |