Commit | Line | Data |
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291f3632 MF |
1 | /* ----------------------------------------------------------------------- |
2 | * | |
3 | * Copyright 2011 Intel Corporation; author Matt Fleming | |
4 | * | |
5 | * This file is part of the Linux kernel, and is made available under | |
6 | * the terms of the GNU General Public License version 2. | |
7 | * | |
8 | * ----------------------------------------------------------------------- */ | |
9 | ||
10 | #include <linux/efi.h> | |
dd5fc854 | 11 | #include <linux/pci.h> |
291f3632 MF |
12 | #include <asm/efi.h> |
13 | #include <asm/setup.h> | |
14 | #include <asm/desc.h> | |
15 | ||
0f905a43 MF |
16 | #undef memcpy /* Use memcpy from misc.c */ |
17 | ||
291f3632 MF |
18 | #include "eboot.h" |
19 | ||
20 | static efi_system_table_t *sys_table; | |
21 | ||
f23cf8bd | 22 | struct efi_config *efi_early; |
204b0a1a | 23 | |
54b52d87 MF |
24 | #define BOOT_SERVICES(bits) \ |
25 | static void setup_boot_services##bits(struct efi_config *c) \ | |
26 | { \ | |
27 | efi_system_table_##bits##_t *table; \ | |
28 | efi_boot_services_##bits##_t *bt; \ | |
29 | \ | |
30 | table = (typeof(table))sys_table; \ | |
31 | \ | |
32 | c->text_output = table->con_out; \ | |
33 | \ | |
34 | bt = (typeof(bt))(unsigned long)(table->boottime); \ | |
35 | \ | |
36 | c->allocate_pool = bt->allocate_pool; \ | |
37 | c->allocate_pages = bt->allocate_pages; \ | |
38 | c->get_memory_map = bt->get_memory_map; \ | |
39 | c->free_pool = bt->free_pool; \ | |
40 | c->free_pages = bt->free_pages; \ | |
41 | c->locate_handle = bt->locate_handle; \ | |
42 | c->handle_protocol = bt->handle_protocol; \ | |
43 | c->exit_boot_services = bt->exit_boot_services; \ | |
44 | } | |
45 | BOOT_SERVICES(32); | |
46 | BOOT_SERVICES(64); | |
291f3632 | 47 | |
bd669475 | 48 | void efi_char16_printk(efi_system_table_t *, efi_char16_t *); |
54b52d87 MF |
49 | |
50 | static efi_status_t | |
c116e8d6 MF |
51 | __file_size32(void *__fh, efi_char16_t *filename_16, |
52 | void **handle, u64 *file_sz) | |
53 | { | |
54 | efi_file_handle_32_t *h, *fh = __fh; | |
55 | efi_file_info_t *info; | |
56 | efi_status_t status; | |
57 | efi_guid_t info_guid = EFI_FILE_INFO_ID; | |
58 | u32 info_sz; | |
59 | ||
60 | status = efi_early->call((unsigned long)fh->open, fh, &h, filename_16, | |
61 | EFI_FILE_MODE_READ, (u64)0); | |
62 | if (status != EFI_SUCCESS) { | |
63 | efi_printk(sys_table, "Failed to open file: "); | |
64 | efi_char16_printk(sys_table, filename_16); | |
65 | efi_printk(sys_table, "\n"); | |
66 | return status; | |
67 | } | |
68 | ||
69 | *handle = h; | |
70 | ||
71 | info_sz = 0; | |
72 | status = efi_early->call((unsigned long)h->get_info, h, &info_guid, | |
73 | &info_sz, NULL); | |
74 | if (status != EFI_BUFFER_TOO_SMALL) { | |
75 | efi_printk(sys_table, "Failed to get file info size\n"); | |
76 | return status; | |
77 | } | |
78 | ||
79 | grow: | |
204b0a1a MF |
80 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, |
81 | info_sz, (void **)&info); | |
c116e8d6 MF |
82 | if (status != EFI_SUCCESS) { |
83 | efi_printk(sys_table, "Failed to alloc mem for file info\n"); | |
84 | return status; | |
85 | } | |
86 | ||
87 | status = efi_early->call((unsigned long)h->get_info, h, &info_guid, | |
88 | &info_sz, info); | |
89 | if (status == EFI_BUFFER_TOO_SMALL) { | |
204b0a1a | 90 | efi_call_early(free_pool, info); |
c116e8d6 MF |
91 | goto grow; |
92 | } | |
93 | ||
94 | *file_sz = info->file_size; | |
204b0a1a | 95 | efi_call_early(free_pool, info); |
c116e8d6 MF |
96 | |
97 | if (status != EFI_SUCCESS) | |
98 | efi_printk(sys_table, "Failed to get initrd info\n"); | |
99 | ||
100 | return status; | |
101 | } | |
102 | ||
103 | static efi_status_t | |
104 | __file_size64(void *__fh, efi_char16_t *filename_16, | |
105 | void **handle, u64 *file_sz) | |
54b52d87 | 106 | { |
c116e8d6 | 107 | efi_file_handle_64_t *h, *fh = __fh; |
54b52d87 MF |
108 | efi_file_info_t *info; |
109 | efi_status_t status; | |
110 | efi_guid_t info_guid = EFI_FILE_INFO_ID; | |
396f1a08 | 111 | u64 info_sz; |
54b52d87 MF |
112 | |
113 | status = efi_early->call((unsigned long)fh->open, fh, &h, filename_16, | |
114 | EFI_FILE_MODE_READ, (u64)0); | |
115 | if (status != EFI_SUCCESS) { | |
116 | efi_printk(sys_table, "Failed to open file: "); | |
117 | efi_char16_printk(sys_table, filename_16); | |
118 | efi_printk(sys_table, "\n"); | |
119 | return status; | |
120 | } | |
121 | ||
122 | *handle = h; | |
123 | ||
124 | info_sz = 0; | |
125 | status = efi_early->call((unsigned long)h->get_info, h, &info_guid, | |
126 | &info_sz, NULL); | |
127 | if (status != EFI_BUFFER_TOO_SMALL) { | |
128 | efi_printk(sys_table, "Failed to get file info size\n"); | |
129 | return status; | |
130 | } | |
131 | ||
132 | grow: | |
204b0a1a MF |
133 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, |
134 | info_sz, (void **)&info); | |
54b52d87 MF |
135 | if (status != EFI_SUCCESS) { |
136 | efi_printk(sys_table, "Failed to alloc mem for file info\n"); | |
137 | return status; | |
138 | } | |
139 | ||
140 | status = efi_early->call((unsigned long)h->get_info, h, &info_guid, | |
141 | &info_sz, info); | |
142 | if (status == EFI_BUFFER_TOO_SMALL) { | |
204b0a1a | 143 | efi_call_early(free_pool, info); |
54b52d87 MF |
144 | goto grow; |
145 | } | |
146 | ||
147 | *file_sz = info->file_size; | |
204b0a1a | 148 | efi_call_early(free_pool, info); |
54b52d87 MF |
149 | |
150 | if (status != EFI_SUCCESS) | |
151 | efi_printk(sys_table, "Failed to get initrd info\n"); | |
152 | ||
153 | return status; | |
154 | } | |
bd669475 | 155 | efi_status_t |
c116e8d6 MF |
156 | efi_file_size(efi_system_table_t *sys_table, void *__fh, |
157 | efi_char16_t *filename_16, void **handle, u64 *file_sz) | |
158 | { | |
159 | if (efi_early->is64) | |
160 | return __file_size64(__fh, filename_16, handle, file_sz); | |
161 | ||
162 | return __file_size32(__fh, filename_16, handle, file_sz); | |
163 | } | |
54b52d87 | 164 | |
bd669475 | 165 | efi_status_t |
47514c99 | 166 | efi_file_read(void *handle, unsigned long *size, void *addr) |
54b52d87 | 167 | { |
c116e8d6 MF |
168 | unsigned long func; |
169 | ||
170 | if (efi_early->is64) { | |
47514c99 | 171 | efi_file_handle_64_t *fh = handle; |
c116e8d6 MF |
172 | |
173 | func = (unsigned long)fh->read; | |
174 | return efi_early->call(func, handle, size, addr); | |
175 | } else { | |
47514c99 | 176 | efi_file_handle_32_t *fh = handle; |
c116e8d6 MF |
177 | |
178 | func = (unsigned long)fh->read; | |
179 | return efi_early->call(func, handle, size, addr); | |
180 | } | |
54b52d87 MF |
181 | } |
182 | ||
bd669475 | 183 | efi_status_t efi_file_close(void *handle) |
54b52d87 | 184 | { |
c116e8d6 | 185 | if (efi_early->is64) { |
47514c99 | 186 | efi_file_handle_64_t *fh = handle; |
c116e8d6 MF |
187 | |
188 | return efi_early->call((unsigned long)fh->close, handle); | |
189 | } else { | |
47514c99 | 190 | efi_file_handle_32_t *fh = handle; |
c116e8d6 MF |
191 | |
192 | return efi_early->call((unsigned long)fh->close, handle); | |
193 | } | |
194 | } | |
195 | ||
196 | static inline efi_status_t __open_volume32(void *__image, void **__fh) | |
197 | { | |
198 | efi_file_io_interface_t *io; | |
199 | efi_loaded_image_32_t *image = __image; | |
200 | efi_file_handle_32_t *fh; | |
201 | efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID; | |
202 | efi_status_t status; | |
203 | void *handle = (void *)(unsigned long)image->device_handle; | |
204 | unsigned long func; | |
205 | ||
204b0a1a MF |
206 | status = efi_call_early(handle_protocol, handle, |
207 | &fs_proto, (void **)&io); | |
c116e8d6 MF |
208 | if (status != EFI_SUCCESS) { |
209 | efi_printk(sys_table, "Failed to handle fs_proto\n"); | |
210 | return status; | |
211 | } | |
212 | ||
213 | func = (unsigned long)io->open_volume; | |
214 | status = efi_early->call(func, io, &fh); | |
215 | if (status != EFI_SUCCESS) | |
216 | efi_printk(sys_table, "Failed to open volume\n"); | |
291f3632 | 217 | |
c116e8d6 MF |
218 | *__fh = fh; |
219 | return status; | |
54b52d87 MF |
220 | } |
221 | ||
c116e8d6 | 222 | static inline efi_status_t __open_volume64(void *__image, void **__fh) |
54b52d87 MF |
223 | { |
224 | efi_file_io_interface_t *io; | |
c116e8d6 MF |
225 | efi_loaded_image_64_t *image = __image; |
226 | efi_file_handle_64_t *fh; | |
54b52d87 MF |
227 | efi_guid_t fs_proto = EFI_FILE_SYSTEM_GUID; |
228 | efi_status_t status; | |
229 | void *handle = (void *)(unsigned long)image->device_handle; | |
c116e8d6 | 230 | unsigned long func; |
54b52d87 | 231 | |
204b0a1a MF |
232 | status = efi_call_early(handle_protocol, handle, |
233 | &fs_proto, (void **)&io); | |
54b52d87 MF |
234 | if (status != EFI_SUCCESS) { |
235 | efi_printk(sys_table, "Failed to handle fs_proto\n"); | |
236 | return status; | |
237 | } | |
291f3632 | 238 | |
54b52d87 MF |
239 | func = (unsigned long)io->open_volume; |
240 | status = efi_early->call(func, io, &fh); | |
241 | if (status != EFI_SUCCESS) | |
242 | efi_printk(sys_table, "Failed to open volume\n"); | |
243 | ||
244 | *__fh = fh; | |
245 | return status; | |
246 | } | |
247 | ||
bd669475 | 248 | efi_status_t |
c116e8d6 MF |
249 | efi_open_volume(efi_system_table_t *sys_table, void *__image, void **__fh) |
250 | { | |
251 | if (efi_early->is64) | |
252 | return __open_volume64(__image, __fh); | |
253 | ||
254 | return __open_volume32(__image, __fh); | |
255 | } | |
256 | ||
bd669475 | 257 | void efi_char16_printk(efi_system_table_t *table, efi_char16_t *str) |
54b52d87 | 258 | { |
54b52d87 MF |
259 | unsigned long output_string; |
260 | size_t offset; | |
54b52d87 | 261 | |
c116e8d6 MF |
262 | if (efi_early->is64) { |
263 | struct efi_simple_text_output_protocol_64 *out; | |
264 | u64 *func; | |
54b52d87 | 265 | |
c116e8d6 MF |
266 | offset = offsetof(typeof(*out), output_string); |
267 | output_string = efi_early->text_output + offset; | |
268 | func = (u64 *)output_string; | |
269 | ||
270 | efi_early->call(*func, efi_early->text_output, str); | |
271 | } else { | |
272 | struct efi_simple_text_output_protocol_32 *out; | |
273 | u32 *func; | |
274 | ||
275 | offset = offsetof(typeof(*out), output_string); | |
276 | output_string = efi_early->text_output + offset; | |
277 | func = (u32 *)output_string; | |
278 | ||
279 | efi_early->call(*func, efi_early->text_output, str); | |
280 | } | |
54b52d87 MF |
281 | } |
282 | ||
291f3632 MF |
283 | static void find_bits(unsigned long mask, u8 *pos, u8 *size) |
284 | { | |
285 | u8 first, len; | |
286 | ||
287 | first = 0; | |
288 | len = 0; | |
289 | ||
290 | if (mask) { | |
291 | while (!(mask & 0x1)) { | |
292 | mask = mask >> 1; | |
293 | first++; | |
294 | } | |
295 | ||
296 | while (mask & 0x1) { | |
297 | mask = mask >> 1; | |
298 | len++; | |
299 | } | |
300 | } | |
301 | ||
302 | *pos = first; | |
303 | *size = len; | |
304 | } | |
305 | ||
c116e8d6 MF |
306 | static efi_status_t |
307 | __setup_efi_pci32(efi_pci_io_protocol_32 *pci, struct pci_setup_rom **__rom) | |
dd5fc854 | 308 | { |
c116e8d6 | 309 | struct pci_setup_rom *rom = NULL; |
dd5fc854 | 310 | efi_status_t status; |
c116e8d6 MF |
311 | unsigned long size; |
312 | uint64_t attributes; | |
dd5fc854 | 313 | |
c116e8d6 MF |
314 | status = efi_early->call(pci->attributes, pci, |
315 | EfiPciIoAttributeOperationGet, 0, 0, | |
316 | &attributes); | |
317 | if (status != EFI_SUCCESS) | |
318 | return status; | |
dd5fc854 | 319 | |
c116e8d6 MF |
320 | if (!pci->romimage || !pci->romsize) |
321 | return EFI_INVALID_PARAMETER; | |
dd5fc854 | 322 | |
c116e8d6 | 323 | size = pci->romsize + sizeof(*rom); |
dd5fc854 | 324 | |
204b0a1a | 325 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom); |
c116e8d6 MF |
326 | if (status != EFI_SUCCESS) |
327 | return status; | |
dd5fc854 | 328 | |
c116e8d6 MF |
329 | memset(rom, 0, sizeof(*rom)); |
330 | ||
331 | rom->data.type = SETUP_PCI; | |
332 | rom->data.len = size - sizeof(struct setup_data); | |
333 | rom->data.next = 0; | |
334 | rom->pcilen = pci->romsize; | |
335 | *__rom = rom; | |
336 | ||
337 | status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, | |
338 | PCI_VENDOR_ID, 1, &(rom->vendor)); | |
dd5fc854 MG |
339 | |
340 | if (status != EFI_SUCCESS) | |
c116e8d6 MF |
341 | goto free_struct; |
342 | ||
343 | status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, | |
344 | PCI_DEVICE_ID, 1, &(rom->devid)); | |
345 | ||
346 | if (status != EFI_SUCCESS) | |
347 | goto free_struct; | |
348 | ||
349 | status = efi_early->call(pci->get_location, pci, &(rom->segment), | |
350 | &(rom->bus), &(rom->device), &(rom->function)); | |
351 | ||
352 | if (status != EFI_SUCCESS) | |
353 | goto free_struct; | |
354 | ||
355 | memcpy(rom->romdata, pci->romimage, pci->romsize); | |
356 | return status; | |
357 | ||
358 | free_struct: | |
204b0a1a | 359 | efi_call_early(free_pool, rom); |
c116e8d6 MF |
360 | return status; |
361 | } | |
362 | ||
363 | static efi_status_t | |
364 | setup_efi_pci32(struct boot_params *params, void **pci_handle, | |
365 | unsigned long size) | |
366 | { | |
367 | efi_pci_io_protocol_32 *pci = NULL; | |
368 | efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID; | |
369 | u32 *handles = (u32 *)(unsigned long)pci_handle; | |
370 | efi_status_t status; | |
371 | unsigned long nr_pci; | |
372 | struct setup_data *data; | |
373 | int i; | |
374 | ||
375 | data = (struct setup_data *)(unsigned long)params->hdr.setup_data; | |
376 | ||
377 | while (data && data->next) | |
378 | data = (struct setup_data *)(unsigned long)data->next; | |
dd5fc854 | 379 | |
c116e8d6 | 380 | nr_pci = size / sizeof(u32); |
dd5fc854 | 381 | for (i = 0; i < nr_pci; i++) { |
c116e8d6 MF |
382 | struct pci_setup_rom *rom = NULL; |
383 | u32 h = handles[i]; | |
dd5fc854 | 384 | |
204b0a1a MF |
385 | status = efi_call_early(handle_protocol, h, |
386 | &pci_proto, (void **)&pci); | |
dd5fc854 MG |
387 | |
388 | if (status != EFI_SUCCESS) | |
389 | continue; | |
390 | ||
391 | if (!pci) | |
392 | continue; | |
393 | ||
c116e8d6 | 394 | status = __setup_efi_pci32(pci, &rom); |
dd5fc854 MG |
395 | if (status != EFI_SUCCESS) |
396 | continue; | |
397 | ||
c116e8d6 MF |
398 | if (data) |
399 | data->next = (unsigned long)rom; | |
400 | else | |
401 | params->hdr.setup_data = (unsigned long)rom; | |
402 | ||
403 | data = (struct setup_data *)rom; | |
dd5fc854 | 404 | |
c116e8d6 | 405 | } |
dd5fc854 | 406 | |
c116e8d6 MF |
407 | return status; |
408 | } | |
dd5fc854 | 409 | |
c116e8d6 MF |
410 | static efi_status_t |
411 | __setup_efi_pci64(efi_pci_io_protocol_64 *pci, struct pci_setup_rom **__rom) | |
412 | { | |
413 | struct pci_setup_rom *rom; | |
414 | efi_status_t status; | |
415 | unsigned long size; | |
416 | uint64_t attributes; | |
dd5fc854 | 417 | |
c116e8d6 MF |
418 | status = efi_early->call(pci->attributes, pci, |
419 | EfiPciIoAttributeOperationGet, 0, | |
420 | &attributes); | |
421 | if (status != EFI_SUCCESS) | |
422 | return status; | |
dd5fc854 | 423 | |
c116e8d6 MF |
424 | if (!pci->romimage || !pci->romsize) |
425 | return EFI_INVALID_PARAMETER; | |
dd5fc854 | 426 | |
c116e8d6 | 427 | size = pci->romsize + sizeof(*rom); |
dd5fc854 | 428 | |
204b0a1a | 429 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, size, &rom); |
c116e8d6 MF |
430 | if (status != EFI_SUCCESS) |
431 | return status; | |
432 | ||
433 | rom->data.type = SETUP_PCI; | |
434 | rom->data.len = size - sizeof(struct setup_data); | |
435 | rom->data.next = 0; | |
436 | rom->pcilen = pci->romsize; | |
437 | *__rom = rom; | |
438 | ||
439 | status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, | |
440 | PCI_VENDOR_ID, 1, &(rom->vendor)); | |
441 | ||
442 | if (status != EFI_SUCCESS) | |
443 | goto free_struct; | |
444 | ||
445 | status = efi_early->call(pci->pci.read, pci, EfiPciIoWidthUint16, | |
446 | PCI_DEVICE_ID, 1, &(rom->devid)); | |
447 | ||
448 | if (status != EFI_SUCCESS) | |
449 | goto free_struct; | |
450 | ||
451 | status = efi_early->call(pci->get_location, pci, &(rom->segment), | |
452 | &(rom->bus), &(rom->device), &(rom->function)); | |
453 | ||
454 | if (status != EFI_SUCCESS) | |
455 | goto free_struct; | |
456 | ||
457 | memcpy(rom->romdata, pci->romimage, pci->romsize); | |
458 | return status; | |
459 | ||
460 | free_struct: | |
204b0a1a | 461 | efi_call_early(free_pool, rom); |
c116e8d6 MF |
462 | return status; |
463 | ||
464 | } | |
465 | ||
466 | static efi_status_t | |
467 | setup_efi_pci64(struct boot_params *params, void **pci_handle, | |
468 | unsigned long size) | |
469 | { | |
470 | efi_pci_io_protocol_64 *pci = NULL; | |
471 | efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID; | |
472 | u64 *handles = (u64 *)(unsigned long)pci_handle; | |
473 | efi_status_t status; | |
474 | unsigned long nr_pci; | |
475 | struct setup_data *data; | |
476 | int i; | |
dd5fc854 | 477 | |
c116e8d6 MF |
478 | data = (struct setup_data *)(unsigned long)params->hdr.setup_data; |
479 | ||
480 | while (data && data->next) | |
481 | data = (struct setup_data *)(unsigned long)data->next; | |
482 | ||
483 | nr_pci = size / sizeof(u64); | |
484 | for (i = 0; i < nr_pci; i++) { | |
485 | struct pci_setup_rom *rom = NULL; | |
486 | u64 h = handles[i]; | |
487 | ||
204b0a1a MF |
488 | status = efi_call_early(handle_protocol, h, |
489 | &pci_proto, (void **)&pci); | |
dd5fc854 MG |
490 | |
491 | if (status != EFI_SUCCESS) | |
c116e8d6 MF |
492 | continue; |
493 | ||
494 | if (!pci) | |
495 | continue; | |
dd5fc854 | 496 | |
c116e8d6 MF |
497 | status = __setup_efi_pci64(pci, &rom); |
498 | if (status != EFI_SUCCESS) | |
499 | continue; | |
dd5fc854 MG |
500 | |
501 | if (data) | |
bc754790 | 502 | data->next = (unsigned long)rom; |
dd5fc854 | 503 | else |
bc754790 | 504 | params->hdr.setup_data = (unsigned long)rom; |
dd5fc854 MG |
505 | |
506 | data = (struct setup_data *)rom; | |
507 | ||
dd5fc854 MG |
508 | } |
509 | ||
dd5fc854 MG |
510 | return status; |
511 | } | |
512 | ||
c116e8d6 | 513 | static efi_status_t setup_efi_pci(struct boot_params *params) |
291f3632 | 514 | { |
291f3632 | 515 | efi_status_t status; |
c116e8d6 MF |
516 | void **pci_handle = NULL; |
517 | efi_guid_t pci_proto = EFI_PCI_IO_PROTOCOL_GUID; | |
518 | unsigned long size = 0; | |
291f3632 | 519 | |
204b0a1a MF |
520 | status = efi_call_early(locate_handle, |
521 | EFI_LOCATE_BY_PROTOCOL, | |
522 | &pci_proto, NULL, &size, pci_handle); | |
291f3632 | 523 | |
c116e8d6 | 524 | if (status == EFI_BUFFER_TOO_SMALL) { |
204b0a1a MF |
525 | status = efi_call_early(allocate_pool, |
526 | EFI_LOADER_DATA, | |
527 | size, (void **)&pci_handle); | |
291f3632 | 528 | |
291f3632 | 529 | if (status != EFI_SUCCESS) |
c116e8d6 | 530 | return status; |
291f3632 | 531 | |
204b0a1a MF |
532 | status = efi_call_early(locate_handle, |
533 | EFI_LOCATE_BY_PROTOCOL, &pci_proto, | |
534 | NULL, &size, pci_handle); | |
291f3632 MF |
535 | } |
536 | ||
c116e8d6 | 537 | if (status != EFI_SUCCESS) |
291f3632 MF |
538 | goto free_handle; |
539 | ||
c116e8d6 MF |
540 | if (efi_early->is64) |
541 | status = setup_efi_pci64(params, pci_handle, size); | |
542 | else | |
543 | status = setup_efi_pci32(params, pci_handle, size); | |
291f3632 | 544 | |
c116e8d6 | 545 | free_handle: |
204b0a1a | 546 | efi_call_early(free_pool, pci_handle); |
c116e8d6 MF |
547 | return status; |
548 | } | |
291f3632 | 549 | |
c116e8d6 MF |
550 | static void |
551 | setup_pixel_info(struct screen_info *si, u32 pixels_per_scan_line, | |
552 | struct efi_pixel_bitmask pixel_info, int pixel_format) | |
553 | { | |
291f3632 MF |
554 | if (pixel_format == PIXEL_RGB_RESERVED_8BIT_PER_COLOR) { |
555 | si->lfb_depth = 32; | |
556 | si->lfb_linelength = pixels_per_scan_line * 4; | |
557 | si->red_size = 8; | |
558 | si->red_pos = 0; | |
559 | si->green_size = 8; | |
560 | si->green_pos = 8; | |
561 | si->blue_size = 8; | |
562 | si->blue_pos = 16; | |
563 | si->rsvd_size = 8; | |
564 | si->rsvd_pos = 24; | |
565 | } else if (pixel_format == PIXEL_BGR_RESERVED_8BIT_PER_COLOR) { | |
566 | si->lfb_depth = 32; | |
567 | si->lfb_linelength = pixels_per_scan_line * 4; | |
568 | si->red_size = 8; | |
569 | si->red_pos = 16; | |
570 | si->green_size = 8; | |
571 | si->green_pos = 8; | |
572 | si->blue_size = 8; | |
573 | si->blue_pos = 0; | |
574 | si->rsvd_size = 8; | |
575 | si->rsvd_pos = 24; | |
576 | } else if (pixel_format == PIXEL_BIT_MASK) { | |
577 | find_bits(pixel_info.red_mask, &si->red_pos, &si->red_size); | |
578 | find_bits(pixel_info.green_mask, &si->green_pos, | |
579 | &si->green_size); | |
580 | find_bits(pixel_info.blue_mask, &si->blue_pos, &si->blue_size); | |
581 | find_bits(pixel_info.reserved_mask, &si->rsvd_pos, | |
582 | &si->rsvd_size); | |
583 | si->lfb_depth = si->red_size + si->green_size + | |
584 | si->blue_size + si->rsvd_size; | |
585 | si->lfb_linelength = (pixels_per_scan_line * si->lfb_depth) / 8; | |
586 | } else { | |
587 | si->lfb_depth = 4; | |
588 | si->lfb_linelength = si->lfb_width / 2; | |
589 | si->red_size = 0; | |
590 | si->red_pos = 0; | |
591 | si->green_size = 0; | |
592 | si->green_pos = 0; | |
593 | si->blue_size = 0; | |
594 | si->blue_pos = 0; | |
595 | si->rsvd_size = 0; | |
596 | si->rsvd_pos = 0; | |
597 | } | |
c116e8d6 MF |
598 | } |
599 | ||
600 | static efi_status_t | |
601 | __gop_query32(struct efi_graphics_output_protocol_32 *gop32, | |
602 | struct efi_graphics_output_mode_info **info, | |
603 | unsigned long *size, u32 *fb_base) | |
604 | { | |
605 | struct efi_graphics_output_protocol_mode_32 *mode; | |
606 | efi_status_t status; | |
607 | unsigned long m; | |
608 | ||
609 | m = gop32->mode; | |
610 | mode = (struct efi_graphics_output_protocol_mode_32 *)m; | |
611 | ||
612 | status = efi_early->call(gop32->query_mode, gop32, | |
613 | mode->mode, size, info); | |
614 | if (status != EFI_SUCCESS) | |
615 | return status; | |
616 | ||
617 | *fb_base = mode->frame_buffer_base; | |
618 | return status; | |
619 | } | |
620 | ||
621 | static efi_status_t | |
622 | setup_gop32(struct screen_info *si, efi_guid_t *proto, | |
623 | unsigned long size, void **gop_handle) | |
624 | { | |
625 | struct efi_graphics_output_protocol_32 *gop32, *first_gop; | |
626 | unsigned long nr_gops; | |
627 | u16 width, height; | |
628 | u32 pixels_per_scan_line; | |
629 | u32 fb_base; | |
630 | struct efi_pixel_bitmask pixel_info; | |
631 | int pixel_format; | |
632 | efi_status_t status; | |
633 | u32 *handles = (u32 *)(unsigned long)gop_handle; | |
634 | int i; | |
635 | ||
636 | first_gop = NULL; | |
637 | gop32 = NULL; | |
638 | ||
639 | nr_gops = size / sizeof(u32); | |
640 | for (i = 0; i < nr_gops; i++) { | |
641 | struct efi_graphics_output_mode_info *info = NULL; | |
642 | efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID; | |
643 | bool conout_found = false; | |
644 | void *dummy = NULL; | |
645 | u32 h = handles[i]; | |
646 | ||
204b0a1a MF |
647 | status = efi_call_early(handle_protocol, h, |
648 | proto, (void **)&gop32); | |
c116e8d6 MF |
649 | if (status != EFI_SUCCESS) |
650 | continue; | |
651 | ||
204b0a1a MF |
652 | status = efi_call_early(handle_protocol, h, |
653 | &conout_proto, &dummy); | |
c116e8d6 MF |
654 | if (status == EFI_SUCCESS) |
655 | conout_found = true; | |
656 | ||
657 | status = __gop_query32(gop32, &info, &size, &fb_base); | |
658 | if (status == EFI_SUCCESS && (!first_gop || conout_found)) { | |
659 | /* | |
660 | * Systems that use the UEFI Console Splitter may | |
661 | * provide multiple GOP devices, not all of which are | |
662 | * backed by real hardware. The workaround is to search | |
663 | * for a GOP implementing the ConOut protocol, and if | |
664 | * one isn't found, to just fall back to the first GOP. | |
665 | */ | |
666 | width = info->horizontal_resolution; | |
667 | height = info->vertical_resolution; | |
668 | pixel_format = info->pixel_format; | |
669 | pixel_info = info->pixel_information; | |
670 | pixels_per_scan_line = info->pixels_per_scan_line; | |
671 | ||
672 | /* | |
673 | * Once we've found a GOP supporting ConOut, | |
674 | * don't bother looking any further. | |
675 | */ | |
676 | first_gop = gop32; | |
677 | if (conout_found) | |
678 | break; | |
679 | } | |
680 | } | |
681 | ||
682 | /* Did we find any GOPs? */ | |
683 | if (!first_gop) | |
684 | goto out; | |
685 | ||
686 | /* EFI framebuffer */ | |
687 | si->orig_video_isVGA = VIDEO_TYPE_EFI; | |
688 | ||
689 | si->lfb_width = width; | |
690 | si->lfb_height = height; | |
691 | si->lfb_base = fb_base; | |
692 | si->pages = 1; | |
693 | ||
694 | setup_pixel_info(si, pixels_per_scan_line, pixel_info, pixel_format); | |
291f3632 | 695 | |
e9b10953 MG |
696 | si->lfb_size = si->lfb_linelength * si->lfb_height; |
697 | ||
f462ed93 | 698 | si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS; |
c116e8d6 MF |
699 | out: |
700 | return status; | |
701 | } | |
f462ed93 | 702 | |
c116e8d6 MF |
703 | static efi_status_t |
704 | __gop_query64(struct efi_graphics_output_protocol_64 *gop64, | |
705 | struct efi_graphics_output_mode_info **info, | |
706 | unsigned long *size, u32 *fb_base) | |
707 | { | |
708 | struct efi_graphics_output_protocol_mode_64 *mode; | |
709 | efi_status_t status; | |
710 | unsigned long m; | |
711 | ||
712 | m = gop64->mode; | |
713 | mode = (struct efi_graphics_output_protocol_mode_64 *)m; | |
714 | ||
715 | status = efi_early->call(gop64->query_mode, gop64, | |
716 | mode->mode, size, info); | |
717 | if (status != EFI_SUCCESS) | |
718 | return status; | |
719 | ||
720 | *fb_base = mode->frame_buffer_base; | |
721 | return status; | |
722 | } | |
723 | ||
724 | static efi_status_t | |
725 | setup_gop64(struct screen_info *si, efi_guid_t *proto, | |
726 | unsigned long size, void **gop_handle) | |
727 | { | |
728 | struct efi_graphics_output_protocol_64 *gop64, *first_gop; | |
729 | unsigned long nr_gops; | |
730 | u16 width, height; | |
731 | u32 pixels_per_scan_line; | |
732 | u32 fb_base; | |
733 | struct efi_pixel_bitmask pixel_info; | |
734 | int pixel_format; | |
735 | efi_status_t status; | |
736 | u64 *handles = (u64 *)(unsigned long)gop_handle; | |
737 | int i; | |
738 | ||
739 | first_gop = NULL; | |
740 | gop64 = NULL; | |
741 | ||
742 | nr_gops = size / sizeof(u64); | |
743 | for (i = 0; i < nr_gops; i++) { | |
744 | struct efi_graphics_output_mode_info *info = NULL; | |
745 | efi_guid_t conout_proto = EFI_CONSOLE_OUT_DEVICE_GUID; | |
746 | bool conout_found = false; | |
747 | void *dummy = NULL; | |
748 | u64 h = handles[i]; | |
749 | ||
204b0a1a MF |
750 | status = efi_call_early(handle_protocol, h, |
751 | proto, (void **)&gop64); | |
c116e8d6 MF |
752 | if (status != EFI_SUCCESS) |
753 | continue; | |
754 | ||
204b0a1a MF |
755 | status = efi_call_early(handle_protocol, h, |
756 | &conout_proto, &dummy); | |
c116e8d6 MF |
757 | if (status == EFI_SUCCESS) |
758 | conout_found = true; | |
759 | ||
760 | status = __gop_query64(gop64, &info, &size, &fb_base); | |
761 | if (status == EFI_SUCCESS && (!first_gop || conout_found)) { | |
762 | /* | |
763 | * Systems that use the UEFI Console Splitter may | |
764 | * provide multiple GOP devices, not all of which are | |
765 | * backed by real hardware. The workaround is to search | |
766 | * for a GOP implementing the ConOut protocol, and if | |
767 | * one isn't found, to just fall back to the first GOP. | |
768 | */ | |
769 | width = info->horizontal_resolution; | |
770 | height = info->vertical_resolution; | |
771 | pixel_format = info->pixel_format; | |
772 | pixel_info = info->pixel_information; | |
773 | pixels_per_scan_line = info->pixels_per_scan_line; | |
774 | ||
775 | /* | |
776 | * Once we've found a GOP supporting ConOut, | |
777 | * don't bother looking any further. | |
778 | */ | |
779 | first_gop = gop64; | |
780 | if (conout_found) | |
781 | break; | |
782 | } | |
783 | } | |
784 | ||
785 | /* Did we find any GOPs? */ | |
786 | if (!first_gop) | |
787 | goto out; | |
788 | ||
789 | /* EFI framebuffer */ | |
790 | si->orig_video_isVGA = VIDEO_TYPE_EFI; | |
791 | ||
792 | si->lfb_width = width; | |
793 | si->lfb_height = height; | |
794 | si->lfb_base = fb_base; | |
795 | si->pages = 1; | |
796 | ||
797 | setup_pixel_info(si, pixels_per_scan_line, pixel_info, pixel_format); | |
798 | ||
799 | si->lfb_size = si->lfb_linelength * si->lfb_height; | |
800 | ||
801 | si->capabilities |= VIDEO_CAPABILITY_SKIP_QUIRKS; | |
802 | out: | |
291f3632 MF |
803 | return status; |
804 | } | |
805 | ||
806 | /* | |
c116e8d6 | 807 | * See if we have Graphics Output Protocol |
291f3632 | 808 | */ |
c116e8d6 | 809 | static efi_status_t setup_gop(struct screen_info *si, efi_guid_t *proto, |
291f3632 MF |
810 | unsigned long size) |
811 | { | |
291f3632 | 812 | efi_status_t status; |
c116e8d6 | 813 | void **gop_handle = NULL; |
291f3632 | 814 | |
204b0a1a MF |
815 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, |
816 | size, (void **)&gop_handle); | |
291f3632 MF |
817 | if (status != EFI_SUCCESS) |
818 | return status; | |
819 | ||
204b0a1a MF |
820 | status = efi_call_early(locate_handle, |
821 | EFI_LOCATE_BY_PROTOCOL, | |
822 | proto, NULL, &size, gop_handle); | |
291f3632 MF |
823 | if (status != EFI_SUCCESS) |
824 | goto free_handle; | |
825 | ||
c116e8d6 MF |
826 | if (efi_early->is64) |
827 | status = setup_gop64(si, proto, size, gop_handle); | |
828 | else | |
829 | status = setup_gop32(si, proto, size, gop_handle); | |
830 | ||
831 | free_handle: | |
204b0a1a | 832 | efi_call_early(free_pool, gop_handle); |
c116e8d6 MF |
833 | return status; |
834 | } | |
835 | ||
836 | static efi_status_t | |
837 | setup_uga32(void **uga_handle, unsigned long size, u32 *width, u32 *height) | |
838 | { | |
839 | struct efi_uga_draw_protocol *uga = NULL, *first_uga; | |
840 | efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID; | |
841 | unsigned long nr_ugas; | |
842 | u32 *handles = (u32 *)uga_handle;; | |
843 | efi_status_t status; | |
844 | int i; | |
845 | ||
291f3632 | 846 | first_uga = NULL; |
c116e8d6 MF |
847 | nr_ugas = size / sizeof(u32); |
848 | for (i = 0; i < nr_ugas; i++) { | |
849 | efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID; | |
850 | u32 w, h, depth, refresh; | |
851 | void *pciio; | |
852 | u32 handle = handles[i]; | |
853 | ||
204b0a1a MF |
854 | status = efi_call_early(handle_protocol, handle, |
855 | &uga_proto, (void **)&uga); | |
c116e8d6 MF |
856 | if (status != EFI_SUCCESS) |
857 | continue; | |
858 | ||
204b0a1a | 859 | efi_call_early(handle_protocol, handle, &pciio_proto, &pciio); |
c116e8d6 MF |
860 | |
861 | status = efi_early->call((unsigned long)uga->get_mode, uga, | |
862 | &w, &h, &depth, &refresh); | |
863 | if (status == EFI_SUCCESS && (!first_uga || pciio)) { | |
864 | *width = w; | |
865 | *height = h; | |
866 | ||
867 | /* | |
868 | * Once we've found a UGA supporting PCIIO, | |
869 | * don't bother looking any further. | |
870 | */ | |
871 | if (pciio) | |
872 | break; | |
873 | ||
874 | first_uga = uga; | |
875 | } | |
876 | } | |
877 | ||
878 | return status; | |
879 | } | |
291f3632 | 880 | |
c116e8d6 MF |
881 | static efi_status_t |
882 | setup_uga64(void **uga_handle, unsigned long size, u32 *width, u32 *height) | |
883 | { | |
884 | struct efi_uga_draw_protocol *uga = NULL, *first_uga; | |
885 | efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID; | |
886 | unsigned long nr_ugas; | |
887 | u64 *handles = (u64 *)uga_handle;; | |
888 | efi_status_t status; | |
889 | int i; | |
890 | ||
891 | first_uga = NULL; | |
892 | nr_ugas = size / sizeof(u64); | |
291f3632 MF |
893 | for (i = 0; i < nr_ugas; i++) { |
894 | efi_guid_t pciio_proto = EFI_PCI_IO_PROTOCOL_GUID; | |
291f3632 MF |
895 | u32 w, h, depth, refresh; |
896 | void *pciio; | |
c116e8d6 | 897 | u64 handle = handles[i]; |
291f3632 | 898 | |
204b0a1a MF |
899 | status = efi_call_early(handle_protocol, handle, |
900 | &uga_proto, (void **)&uga); | |
291f3632 MF |
901 | if (status != EFI_SUCCESS) |
902 | continue; | |
903 | ||
204b0a1a | 904 | efi_call_early(handle_protocol, handle, &pciio_proto, &pciio); |
291f3632 | 905 | |
54b52d87 MF |
906 | status = efi_early->call((unsigned long)uga->get_mode, uga, |
907 | &w, &h, &depth, &refresh); | |
291f3632 | 908 | if (status == EFI_SUCCESS && (!first_uga || pciio)) { |
c116e8d6 MF |
909 | *width = w; |
910 | *height = h; | |
291f3632 MF |
911 | |
912 | /* | |
913 | * Once we've found a UGA supporting PCIIO, | |
914 | * don't bother looking any further. | |
915 | */ | |
916 | if (pciio) | |
917 | break; | |
918 | ||
919 | first_uga = uga; | |
920 | } | |
921 | } | |
922 | ||
c116e8d6 MF |
923 | return status; |
924 | } | |
925 | ||
926 | /* | |
927 | * See if we have Universal Graphics Adapter (UGA) protocol | |
928 | */ | |
929 | static efi_status_t setup_uga(struct screen_info *si, efi_guid_t *uga_proto, | |
930 | unsigned long size) | |
931 | { | |
932 | efi_status_t status; | |
933 | u32 width, height; | |
934 | void **uga_handle = NULL; | |
935 | ||
204b0a1a MF |
936 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, |
937 | size, (void **)&uga_handle); | |
c116e8d6 MF |
938 | if (status != EFI_SUCCESS) |
939 | return status; | |
940 | ||
204b0a1a MF |
941 | status = efi_call_early(locate_handle, |
942 | EFI_LOCATE_BY_PROTOCOL, | |
943 | uga_proto, NULL, &size, uga_handle); | |
c116e8d6 MF |
944 | if (status != EFI_SUCCESS) |
945 | goto free_handle; | |
946 | ||
947 | height = 0; | |
948 | width = 0; | |
949 | ||
950 | if (efi_early->is64) | |
951 | status = setup_uga64(uga_handle, size, &width, &height); | |
952 | else | |
953 | status = setup_uga32(uga_handle, size, &width, &height); | |
954 | ||
955 | if (!width && !height) | |
291f3632 MF |
956 | goto free_handle; |
957 | ||
958 | /* EFI framebuffer */ | |
959 | si->orig_video_isVGA = VIDEO_TYPE_EFI; | |
960 | ||
961 | si->lfb_depth = 32; | |
962 | si->lfb_width = width; | |
963 | si->lfb_height = height; | |
964 | ||
965 | si->red_size = 8; | |
966 | si->red_pos = 16; | |
967 | si->green_size = 8; | |
968 | si->green_pos = 8; | |
969 | si->blue_size = 8; | |
970 | si->blue_pos = 0; | |
971 | si->rsvd_size = 8; | |
972 | si->rsvd_pos = 24; | |
973 | ||
291f3632 | 974 | free_handle: |
204b0a1a | 975 | efi_call_early(free_pool, uga_handle); |
291f3632 MF |
976 | return status; |
977 | } | |
978 | ||
979 | void setup_graphics(struct boot_params *boot_params) | |
980 | { | |
981 | efi_guid_t graphics_proto = EFI_GRAPHICS_OUTPUT_PROTOCOL_GUID; | |
982 | struct screen_info *si; | |
983 | efi_guid_t uga_proto = EFI_UGA_PROTOCOL_GUID; | |
984 | efi_status_t status; | |
985 | unsigned long size; | |
986 | void **gop_handle = NULL; | |
987 | void **uga_handle = NULL; | |
988 | ||
989 | si = &boot_params->screen_info; | |
990 | memset(si, 0, sizeof(*si)); | |
991 | ||
992 | size = 0; | |
204b0a1a MF |
993 | status = efi_call_early(locate_handle, |
994 | EFI_LOCATE_BY_PROTOCOL, | |
995 | &graphics_proto, NULL, &size, gop_handle); | |
291f3632 MF |
996 | if (status == EFI_BUFFER_TOO_SMALL) |
997 | status = setup_gop(si, &graphics_proto, size); | |
998 | ||
999 | if (status != EFI_SUCCESS) { | |
1000 | size = 0; | |
204b0a1a MF |
1001 | status = efi_call_early(locate_handle, |
1002 | EFI_LOCATE_BY_PROTOCOL, | |
1003 | &uga_proto, NULL, &size, uga_handle); | |
291f3632 MF |
1004 | if (status == EFI_BUFFER_TOO_SMALL) |
1005 | setup_uga(si, &uga_proto, size); | |
1006 | } | |
1007 | } | |
1008 | ||
291f3632 MF |
1009 | /* |
1010 | * Because the x86 boot code expects to be passed a boot_params we | |
1011 | * need to create one ourselves (usually the bootloader would create | |
1012 | * one for us). | |
7e8213c1 MF |
1013 | * |
1014 | * The caller is responsible for filling out ->code32_start in the | |
1015 | * returned boot_params. | |
291f3632 | 1016 | */ |
54b52d87 | 1017 | struct boot_params *make_boot_params(struct efi_config *c) |
291f3632 | 1018 | { |
9ca8f72a MF |
1019 | struct boot_params *boot_params; |
1020 | struct sys_desc_table *sdt; | |
1021 | struct apm_bios_info *bi; | |
1022 | struct setup_header *hdr; | |
1023 | struct efi_info *efi; | |
1024 | efi_loaded_image_t *image; | |
54b52d87 | 1025 | void *options, *handle; |
9ca8f72a | 1026 | efi_guid_t proto = LOADED_IMAGE_PROTOCOL_GUID; |
291f3632 MF |
1027 | int options_size = 0; |
1028 | efi_status_t status; | |
5fef3870 | 1029 | char *cmdline_ptr; |
291f3632 MF |
1030 | u16 *s2; |
1031 | u8 *s1; | |
1032 | int i; | |
46f4582e RF |
1033 | unsigned long ramdisk_addr; |
1034 | unsigned long ramdisk_size; | |
4bf7111f | 1035 | unsigned long initrd_addr_max; |
291f3632 | 1036 | |
54b52d87 MF |
1037 | efi_early = c; |
1038 | sys_table = (efi_system_table_t *)(unsigned long)efi_early->table; | |
1039 | handle = (void *)(unsigned long)efi_early->image_handle; | |
9ca8f72a MF |
1040 | |
1041 | /* Check if we were booted by the EFI firmware */ | |
1042 | if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) | |
1043 | return NULL; | |
1044 | ||
54b52d87 MF |
1045 | if (efi_early->is64) |
1046 | setup_boot_services64(efi_early); | |
1047 | else | |
1048 | setup_boot_services32(efi_early); | |
1049 | ||
204b0a1a MF |
1050 | status = efi_call_early(handle_protocol, handle, |
1051 | &proto, (void *)&image); | |
9ca8f72a | 1052 | if (status != EFI_SUCCESS) { |
876dc36a | 1053 | efi_printk(sys_table, "Failed to get handle for LOADED_IMAGE_PROTOCOL\n"); |
9ca8f72a MF |
1054 | return NULL; |
1055 | } | |
1056 | ||
40e4530a RF |
1057 | status = efi_low_alloc(sys_table, 0x4000, 1, |
1058 | (unsigned long *)&boot_params); | |
9ca8f72a | 1059 | if (status != EFI_SUCCESS) { |
876dc36a | 1060 | efi_printk(sys_table, "Failed to alloc lowmem for boot params\n"); |
9ca8f72a MF |
1061 | return NULL; |
1062 | } | |
1063 | ||
1064 | memset(boot_params, 0x0, 0x4000); | |
1065 | ||
1066 | hdr = &boot_params->hdr; | |
1067 | efi = &boot_params->efi_info; | |
1068 | bi = &boot_params->apm_bios_info; | |
1069 | sdt = &boot_params->sys_desc_table; | |
1070 | ||
1071 | /* Copy the second sector to boot_params */ | |
1072 | memcpy(&hdr->jump, image->image_base + 512, 512); | |
1073 | ||
1074 | /* | |
1075 | * Fill out some of the header fields ourselves because the | |
1076 | * EFI firmware loader doesn't load the first sector. | |
1077 | */ | |
1078 | hdr->root_flags = 1; | |
1079 | hdr->vid_mode = 0xffff; | |
1080 | hdr->boot_flag = 0xAA55; | |
1081 | ||
291f3632 MF |
1082 | hdr->type_of_loader = 0x21; |
1083 | ||
1084 | /* Convert unicode cmdline to ascii */ | |
c625d1c2 | 1085 | cmdline_ptr = efi_convert_cmdline(sys_table, image, &options_size); |
5fef3870 RF |
1086 | if (!cmdline_ptr) |
1087 | goto fail; | |
1088 | hdr->cmd_line_ptr = (unsigned long)cmdline_ptr; | |
291f3632 MF |
1089 | |
1090 | hdr->ramdisk_image = 0; | |
1091 | hdr->ramdisk_size = 0; | |
1092 | ||
291f3632 MF |
1093 | /* Clear APM BIOS info */ |
1094 | memset(bi, 0, sizeof(*bi)); | |
1095 | ||
1096 | memset(sdt, 0, sizeof(*sdt)); | |
1097 | ||
4bf7111f YL |
1098 | if (hdr->xloadflags & XLF_CAN_BE_LOADED_ABOVE_4G) |
1099 | initrd_addr_max = -1UL; | |
1100 | else | |
1101 | initrd_addr_max = hdr->initrd_addr_max; | |
1102 | ||
46f4582e RF |
1103 | status = handle_cmdline_files(sys_table, image, |
1104 | (char *)(unsigned long)hdr->cmd_line_ptr, | |
4bf7111f | 1105 | "initrd=", initrd_addr_max, |
46f4582e | 1106 | &ramdisk_addr, &ramdisk_size); |
9ca8f72a MF |
1107 | if (status != EFI_SUCCESS) |
1108 | goto fail2; | |
4bf7111f YL |
1109 | hdr->ramdisk_image = ramdisk_addr & 0xffffffff; |
1110 | hdr->ramdisk_size = ramdisk_size & 0xffffffff; | |
1111 | boot_params->ext_ramdisk_image = (u64)ramdisk_addr >> 32; | |
1112 | boot_params->ext_ramdisk_size = (u64)ramdisk_size >> 32; | |
9ca8f72a MF |
1113 | |
1114 | return boot_params; | |
1115 | fail2: | |
0e1cadb0 | 1116 | efi_free(sys_table, options_size, hdr->cmd_line_ptr); |
9ca8f72a | 1117 | fail: |
40e4530a | 1118 | efi_free(sys_table, 0x4000, (unsigned long)boot_params); |
9ca8f72a MF |
1119 | return NULL; |
1120 | } | |
1121 | ||
d2078d5a LC |
1122 | static void add_e820ext(struct boot_params *params, |
1123 | struct setup_data *e820ext, u32 nr_entries) | |
9ca8f72a | 1124 | { |
d2078d5a | 1125 | struct setup_data *data; |
9ca8f72a | 1126 | efi_status_t status; |
d2078d5a | 1127 | unsigned long size; |
291f3632 | 1128 | |
d2078d5a LC |
1129 | e820ext->type = SETUP_E820_EXT; |
1130 | e820ext->len = nr_entries * sizeof(struct e820entry); | |
1131 | e820ext->next = 0; | |
291f3632 | 1132 | |
d2078d5a | 1133 | data = (struct setup_data *)(unsigned long)params->hdr.setup_data; |
291f3632 | 1134 | |
d2078d5a LC |
1135 | while (data && data->next) |
1136 | data = (struct setup_data *)(unsigned long)data->next; | |
d3768d88 | 1137 | |
d2078d5a LC |
1138 | if (data) |
1139 | data->next = (unsigned long)e820ext; | |
1140 | else | |
1141 | params->hdr.setup_data = (unsigned long)e820ext; | |
1142 | } | |
291f3632 | 1143 | |
d2078d5a LC |
1144 | static efi_status_t setup_e820(struct boot_params *params, |
1145 | struct setup_data *e820ext, u32 e820ext_size) | |
1146 | { | |
1147 | struct e820entry *e820_map = ¶ms->e820_map[0]; | |
1148 | struct efi_info *efi = ¶ms->efi_info; | |
1149 | struct e820entry *prev = NULL; | |
1150 | u32 nr_entries; | |
1151 | u32 nr_desc; | |
1152 | int i; | |
291f3632 | 1153 | |
291f3632 | 1154 | nr_entries = 0; |
d2078d5a LC |
1155 | nr_desc = efi->efi_memmap_size / efi->efi_memdesc_size; |
1156 | ||
1157 | for (i = 0; i < nr_desc; i++) { | |
291f3632 MF |
1158 | efi_memory_desc_t *d; |
1159 | unsigned int e820_type = 0; | |
d2078d5a | 1160 | unsigned long m = efi->efi_memmap; |
291f3632 | 1161 | |
d2078d5a | 1162 | d = (efi_memory_desc_t *)(m + (i * efi->efi_memdesc_size)); |
291f3632 MF |
1163 | switch (d->type) { |
1164 | case EFI_RESERVED_TYPE: | |
1165 | case EFI_RUNTIME_SERVICES_CODE: | |
1166 | case EFI_RUNTIME_SERVICES_DATA: | |
1167 | case EFI_MEMORY_MAPPED_IO: | |
1168 | case EFI_MEMORY_MAPPED_IO_PORT_SPACE: | |
1169 | case EFI_PAL_CODE: | |
1170 | e820_type = E820_RESERVED; | |
1171 | break; | |
1172 | ||
1173 | case EFI_UNUSABLE_MEMORY: | |
1174 | e820_type = E820_UNUSABLE; | |
1175 | break; | |
1176 | ||
1177 | case EFI_ACPI_RECLAIM_MEMORY: | |
1178 | e820_type = E820_ACPI; | |
1179 | break; | |
1180 | ||
1181 | case EFI_LOADER_CODE: | |
1182 | case EFI_LOADER_DATA: | |
1183 | case EFI_BOOT_SERVICES_CODE: | |
1184 | case EFI_BOOT_SERVICES_DATA: | |
1185 | case EFI_CONVENTIONAL_MEMORY: | |
1186 | e820_type = E820_RAM; | |
1187 | break; | |
1188 | ||
1189 | case EFI_ACPI_MEMORY_NVS: | |
1190 | e820_type = E820_NVS; | |
1191 | break; | |
1192 | ||
1193 | default: | |
1194 | continue; | |
1195 | } | |
1196 | ||
1197 | /* Merge adjacent mappings */ | |
1198 | if (prev && prev->type == e820_type && | |
d2078d5a | 1199 | (prev->addr + prev->size) == d->phys_addr) { |
291f3632 | 1200 | prev->size += d->num_pages << 12; |
d2078d5a | 1201 | continue; |
291f3632 | 1202 | } |
d2078d5a LC |
1203 | |
1204 | if (nr_entries == ARRAY_SIZE(params->e820_map)) { | |
1205 | u32 need = (nr_desc - i) * sizeof(struct e820entry) + | |
1206 | sizeof(struct setup_data); | |
1207 | ||
1208 | if (!e820ext || e820ext_size < need) | |
1209 | return EFI_BUFFER_TOO_SMALL; | |
1210 | ||
1211 | /* boot_params map full, switch to e820 extended */ | |
1212 | e820_map = (struct e820entry *)e820ext->data; | |
1213 | } | |
1214 | ||
1215 | e820_map->addr = d->phys_addr; | |
1216 | e820_map->size = d->num_pages << PAGE_SHIFT; | |
1217 | e820_map->type = e820_type; | |
1218 | prev = e820_map++; | |
1219 | nr_entries++; | |
291f3632 MF |
1220 | } |
1221 | ||
d2078d5a LC |
1222 | if (nr_entries > ARRAY_SIZE(params->e820_map)) { |
1223 | u32 nr_e820ext = nr_entries - ARRAY_SIZE(params->e820_map); | |
1224 | ||
1225 | add_e820ext(params, e820ext, nr_e820ext); | |
1226 | nr_entries -= nr_e820ext; | |
1227 | } | |
1228 | ||
1229 | params->e820_entries = (u8)nr_entries; | |
1230 | ||
1231 | return EFI_SUCCESS; | |
1232 | } | |
1233 | ||
1234 | static efi_status_t alloc_e820ext(u32 nr_desc, struct setup_data **e820ext, | |
1235 | u32 *e820ext_size) | |
1236 | { | |
1237 | efi_status_t status; | |
1238 | unsigned long size; | |
1239 | ||
1240 | size = sizeof(struct setup_data) + | |
1241 | sizeof(struct e820entry) * nr_desc; | |
1242 | ||
1243 | if (*e820ext) { | |
204b0a1a | 1244 | efi_call_early(free_pool, *e820ext); |
d2078d5a LC |
1245 | *e820ext = NULL; |
1246 | *e820ext_size = 0; | |
1247 | } | |
1248 | ||
204b0a1a MF |
1249 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, |
1250 | size, (void **)e820ext); | |
d2078d5a LC |
1251 | if (status == EFI_SUCCESS) |
1252 | *e820ext_size = size; | |
1253 | ||
1254 | return status; | |
1255 | } | |
1256 | ||
1257 | static efi_status_t exit_boot(struct boot_params *boot_params, | |
b8ff87a6 | 1258 | void *handle, bool is64) |
d2078d5a LC |
1259 | { |
1260 | struct efi_info *efi = &boot_params->efi_info; | |
1261 | unsigned long map_sz, key, desc_size; | |
1262 | efi_memory_desc_t *mem_map; | |
1263 | struct setup_data *e820ext; | |
b8ff87a6 | 1264 | const char *signature; |
d2078d5a LC |
1265 | __u32 e820ext_size; |
1266 | __u32 nr_desc, prev_nr_desc; | |
1267 | efi_status_t status; | |
1268 | __u32 desc_version; | |
1269 | bool called_exit = false; | |
1270 | u8 nr_entries; | |
1271 | int i; | |
1272 | ||
1273 | nr_desc = 0; | |
1274 | e820ext = NULL; | |
1275 | e820ext_size = 0; | |
1276 | ||
1277 | get_map: | |
1278 | status = efi_get_memory_map(sys_table, &mem_map, &map_sz, &desc_size, | |
1279 | &desc_version, &key); | |
1280 | ||
1281 | if (status != EFI_SUCCESS) | |
1282 | return status; | |
1283 | ||
1284 | prev_nr_desc = nr_desc; | |
1285 | nr_desc = map_sz / desc_size; | |
1286 | if (nr_desc > prev_nr_desc && | |
1287 | nr_desc > ARRAY_SIZE(boot_params->e820_map)) { | |
1288 | u32 nr_e820ext = nr_desc - ARRAY_SIZE(boot_params->e820_map); | |
1289 | ||
1290 | status = alloc_e820ext(nr_e820ext, &e820ext, &e820ext_size); | |
1291 | if (status != EFI_SUCCESS) | |
1292 | goto free_mem_map; | |
1293 | ||
204b0a1a | 1294 | efi_call_early(free_pool, mem_map); |
d2078d5a LC |
1295 | goto get_map; /* Allocated memory, get map again */ |
1296 | } | |
1297 | ||
b8ff87a6 MF |
1298 | signature = is64 ? EFI64_LOADER_SIGNATURE : EFI32_LOADER_SIGNATURE; |
1299 | memcpy(&efi->efi_loader_signature, signature, sizeof(__u32)); | |
1300 | ||
d2078d5a LC |
1301 | efi->efi_systab = (unsigned long)sys_table; |
1302 | efi->efi_memdesc_size = desc_size; | |
1303 | efi->efi_memdesc_version = desc_version; | |
1304 | efi->efi_memmap = (unsigned long)mem_map; | |
1305 | efi->efi_memmap_size = map_sz; | |
1306 | ||
1307 | #ifdef CONFIG_X86_64 | |
1308 | efi->efi_systab_hi = (unsigned long)sys_table >> 32; | |
1309 | efi->efi_memmap_hi = (unsigned long)mem_map >> 32; | |
1310 | #endif | |
1311 | ||
1312 | /* Might as well exit boot services now */ | |
204b0a1a | 1313 | status = efi_call_early(exit_boot_services, handle, key); |
d2078d5a LC |
1314 | if (status != EFI_SUCCESS) { |
1315 | /* | |
1316 | * ExitBootServices() will fail if any of the event | |
1317 | * handlers change the memory map. In which case, we | |
1318 | * must be prepared to retry, but only once so that | |
1319 | * we're guaranteed to exit on repeated failures instead | |
1320 | * of spinning forever. | |
1321 | */ | |
1322 | if (called_exit) | |
1323 | goto free_mem_map; | |
1324 | ||
1325 | called_exit = true; | |
204b0a1a | 1326 | efi_call_early(free_pool, mem_map); |
d2078d5a LC |
1327 | goto get_map; |
1328 | } | |
1329 | ||
1330 | /* Historic? */ | |
1331 | boot_params->alt_mem_k = 32 * 1024; | |
1332 | ||
1333 | status = setup_e820(boot_params, e820ext, e820ext_size); | |
1334 | if (status != EFI_SUCCESS) | |
1335 | return status; | |
291f3632 MF |
1336 | |
1337 | return EFI_SUCCESS; | |
1338 | ||
1339 | free_mem_map: | |
204b0a1a | 1340 | efi_call_early(free_pool, mem_map); |
291f3632 MF |
1341 | return status; |
1342 | } | |
1343 | ||
9ca8f72a MF |
1344 | /* |
1345 | * On success we return a pointer to a boot_params structure, and NULL | |
1346 | * on failure. | |
1347 | */ | |
54b52d87 | 1348 | struct boot_params *efi_main(struct efi_config *c, |
9ca8f72a MF |
1349 | struct boot_params *boot_params) |
1350 | { | |
54b52d87 | 1351 | struct desc_ptr *gdt = NULL; |
9ca8f72a MF |
1352 | efi_loaded_image_t *image; |
1353 | struct setup_header *hdr = &boot_params->hdr; | |
1354 | efi_status_t status; | |
1355 | struct desc_struct *desc; | |
54b52d87 MF |
1356 | void *handle; |
1357 | efi_system_table_t *_table; | |
1358 | bool is64; | |
1359 | ||
1360 | efi_early = c; | |
1361 | ||
1362 | _table = (efi_system_table_t *)(unsigned long)efi_early->table; | |
1363 | handle = (void *)(unsigned long)efi_early->image_handle; | |
1364 | is64 = efi_early->is64; | |
9ca8f72a MF |
1365 | |
1366 | sys_table = _table; | |
1367 | ||
1368 | /* Check if we were booted by the EFI firmware */ | |
1369 | if (sys_table->hdr.signature != EFI_SYSTEM_TABLE_SIGNATURE) | |
1370 | goto fail; | |
1371 | ||
54b52d87 MF |
1372 | if (is64) |
1373 | setup_boot_services64(efi_early); | |
1374 | else | |
1375 | setup_boot_services32(efi_early); | |
1376 | ||
9ca8f72a | 1377 | setup_graphics(boot_params); |
291f3632 | 1378 | |
dd5fc854 MG |
1379 | setup_efi_pci(boot_params); |
1380 | ||
204b0a1a MF |
1381 | status = efi_call_early(allocate_pool, EFI_LOADER_DATA, |
1382 | sizeof(*gdt), (void **)&gdt); | |
9fa7deda | 1383 | if (status != EFI_SUCCESS) { |
876dc36a | 1384 | efi_printk(sys_table, "Failed to alloc mem for gdt structure\n"); |
291f3632 | 1385 | goto fail; |
9fa7deda | 1386 | } |
291f3632 MF |
1387 | |
1388 | gdt->size = 0x800; | |
40e4530a | 1389 | status = efi_low_alloc(sys_table, gdt->size, 8, |
876dc36a | 1390 | (unsigned long *)&gdt->address); |
9fa7deda | 1391 | if (status != EFI_SUCCESS) { |
876dc36a | 1392 | efi_printk(sys_table, "Failed to alloc mem for gdt\n"); |
291f3632 | 1393 | goto fail; |
9fa7deda | 1394 | } |
291f3632 | 1395 | |
9ca8f72a MF |
1396 | /* |
1397 | * If the kernel isn't already loaded at the preferred load | |
1398 | * address, relocate it. | |
1399 | */ | |
1400 | if (hdr->pref_address != hdr->code32_start) { | |
4a9f3a7c RF |
1401 | unsigned long bzimage_addr = hdr->code32_start; |
1402 | status = efi_relocate_kernel(sys_table, &bzimage_addr, | |
1403 | hdr->init_size, hdr->init_size, | |
1404 | hdr->pref_address, | |
1405 | hdr->kernel_alignment); | |
9ca8f72a MF |
1406 | if (status != EFI_SUCCESS) |
1407 | goto fail; | |
4a9f3a7c RF |
1408 | |
1409 | hdr->pref_address = hdr->code32_start; | |
1410 | hdr->code32_start = bzimage_addr; | |
9ca8f72a MF |
1411 | } |
1412 | ||
b8ff87a6 | 1413 | status = exit_boot(boot_params, handle, is64); |
291f3632 MF |
1414 | if (status != EFI_SUCCESS) |
1415 | goto fail; | |
1416 | ||
1417 | memset((char *)gdt->address, 0x0, gdt->size); | |
1418 | desc = (struct desc_struct *)gdt->address; | |
1419 | ||
1420 | /* The first GDT is a dummy and the second is unused. */ | |
1421 | desc += 2; | |
1422 | ||
1423 | desc->limit0 = 0xffff; | |
1424 | desc->base0 = 0x0000; | |
1425 | desc->base1 = 0x0000; | |
1426 | desc->type = SEG_TYPE_CODE | SEG_TYPE_EXEC_READ; | |
1427 | desc->s = DESC_TYPE_CODE_DATA; | |
1428 | desc->dpl = 0; | |
1429 | desc->p = 1; | |
1430 | desc->limit = 0xf; | |
1431 | desc->avl = 0; | |
1432 | desc->l = 0; | |
1433 | desc->d = SEG_OP_SIZE_32BIT; | |
1434 | desc->g = SEG_GRANULARITY_4KB; | |
1435 | desc->base2 = 0x00; | |
1436 | ||
1437 | desc++; | |
1438 | desc->limit0 = 0xffff; | |
1439 | desc->base0 = 0x0000; | |
1440 | desc->base1 = 0x0000; | |
1441 | desc->type = SEG_TYPE_DATA | SEG_TYPE_READ_WRITE; | |
1442 | desc->s = DESC_TYPE_CODE_DATA; | |
1443 | desc->dpl = 0; | |
1444 | desc->p = 1; | |
1445 | desc->limit = 0xf; | |
1446 | desc->avl = 0; | |
1447 | desc->l = 0; | |
1448 | desc->d = SEG_OP_SIZE_32BIT; | |
1449 | desc->g = SEG_GRANULARITY_4KB; | |
1450 | desc->base2 = 0x00; | |
1451 | ||
1452 | #ifdef CONFIG_X86_64 | |
1453 | /* Task segment value */ | |
1454 | desc++; | |
1455 | desc->limit0 = 0x0000; | |
1456 | desc->base0 = 0x0000; | |
1457 | desc->base1 = 0x0000; | |
1458 | desc->type = SEG_TYPE_TSS; | |
1459 | desc->s = 0; | |
1460 | desc->dpl = 0; | |
1461 | desc->p = 1; | |
1462 | desc->limit = 0x0; | |
1463 | desc->avl = 0; | |
1464 | desc->l = 0; | |
1465 | desc->d = 0; | |
1466 | desc->g = SEG_GRANULARITY_4KB; | |
1467 | desc->base2 = 0x00; | |
1468 | #endif /* CONFIG_X86_64 */ | |
1469 | ||
291f3632 | 1470 | asm volatile("cli"); |
0ce6cda2 | 1471 | asm volatile ("lgdt %0" : : "m" (*gdt)); |
291f3632 MF |
1472 | |
1473 | return boot_params; | |
1474 | fail: | |
1475 | return NULL; | |
1476 | } |