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