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Commit | Line | Data |
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c9baafe7 | 1 | /* |
2 | * GRUB -- GRand Unified Bootloader | |
1a064917 | 3 | * Copyright (C) 2006,2007,2008,2009,2010 Free Software Foundation, Inc. |
c9baafe7 | 4 | * |
5 | * GRUB is free software: you can redistribute it and/or modify | |
6 | * it under the terms of the GNU General Public License as published by | |
7 | * the Free Software Foundation, either version 3 of the License, or | |
8 | * (at your option) any later version. | |
9 | * | |
10 | * GRUB is distributed in the hope that it will be useful, | |
11 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
13 | * GNU General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * along with GRUB. If not, see <http://www.gnu.org/licenses/>. | |
17 | */ | |
18 | ||
19 | #include <grub/loader.h> | |
c8142599 | 20 | #include <grub/memory.h> |
6c67de15 | 21 | #include <grub/normal.h> |
c9baafe7 | 22 | #include <grub/file.h> |
23 | #include <grub/disk.h> | |
24 | #include <grub/err.h> | |
25 | #include <grub/misc.h> | |
26 | #include <grub/types.h> | |
c9baafe7 | 27 | #include <grub/dl.h> |
28 | #include <grub/mm.h> | |
29 | #include <grub/term.h> | |
30 | #include <grub/cpu/linux.h> | |
14aad807 | 31 | #include <grub/video.h> |
d3539132 | 32 | #include <grub/video_fb.h> |
b1b797cb | 33 | #include <grub/command.h> |
55b40bc6 | 34 | #include <grub/i386/relocator.h> |
809bbfeb | 35 | #include <grub/i18n.h> |
25953e10 | 36 | #include <grub/lib/cmdline.h> |
c9baafe7 | 37 | |
e745cf0c VS |
38 | GRUB_MOD_LICENSE ("GPLv3+"); |
39 | ||
e31bb619 VS |
40 | #ifdef GRUB_MACHINE_PCBIOS |
41 | #include <grub/i386/pc/vesa_modes_table.h> | |
42 | #endif | |
43 | ||
c8142599 VS |
44 | #ifdef GRUB_MACHINE_EFI |
45 | #include <grub/efi/efi.h> | |
46 | #define HAS_VGA_TEXT 0 | |
bf26bcc4 | 47 | #define DEFAULT_VIDEO_MODE "auto" |
b1257f65 | 48 | #define ACCEPTS_PURE_TEXT 0 |
8071fb79 VS |
49 | #elif defined (GRUB_MACHINE_IEEE1275) |
50 | #include <grub/ieee1275/ieee1275.h> | |
51 | #define HAS_VGA_TEXT 0 | |
52 | #define DEFAULT_VIDEO_MODE "text" | |
b1257f65 | 53 | #define ACCEPTS_PURE_TEXT 1 |
c8142599 VS |
54 | #else |
55 | #include <grub/i386/pc/vbe.h> | |
56 | #include <grub/i386/pc/console.h> | |
57 | #define HAS_VGA_TEXT 1 | |
58 | #define DEFAULT_VIDEO_MODE "text" | |
b1257f65 | 59 | #define ACCEPTS_PURE_TEXT 1 |
c8142599 VS |
60 | #endif |
61 | ||
c9baafe7 | 62 | #define GRUB_LINUX_CL_OFFSET 0x1000 |
c9baafe7 | 63 | |
64 | static grub_dl_t my_mod; | |
65 | ||
66 | static grub_size_t linux_mem_size; | |
67 | static int loaded; | |
68 | static void *real_mode_mem; | |
55b40bc6 | 69 | static grub_addr_t real_mode_target; |
c9baafe7 | 70 | static void *prot_mode_mem; |
55b40bc6 | 71 | static grub_addr_t prot_mode_target; |
c9baafe7 | 72 | static void *initrd_mem; |
55b40bc6 | 73 | static grub_addr_t initrd_mem_target; |
c9baafe7 | 74 | static grub_uint32_t real_mode_pages; |
75 | static grub_uint32_t prot_mode_pages; | |
76 | static grub_uint32_t initrd_pages; | |
55b40bc6 | 77 | static struct grub_relocator *relocator = NULL; |
c8142599 | 78 | static void *efi_mmap_buf; |
a06eb03a | 79 | static grub_size_t maximal_cmdline_size; |
d3fbca98 VS |
80 | #ifdef GRUB_MACHINE_EFI |
81 | static grub_efi_uintn_t efi_mmap_size; | |
82 | #else | |
83 | static const grub_size_t efi_mmap_size = 0; | |
84 | #endif | |
c9baafe7 | 85 | |
55b40bc6 VS |
86 | /* FIXME */ |
87 | #if 0 | |
c9baafe7 | 88 | struct idt_descriptor |
89 | { | |
90 | grub_uint16_t limit; | |
91 | void *base; | |
92 | } __attribute__ ((packed)); | |
93 | ||
94 | static struct idt_descriptor idt_desc = | |
95 | { | |
96 | 0, | |
97 | 0 | |
98 | }; | |
55b40bc6 | 99 | #endif |
c9baafe7 | 100 | |
101 | static inline grub_size_t | |
102 | page_align (grub_size_t size) | |
103 | { | |
104 | return (size + (1 << 12) - 1) & (~((1 << 12) - 1)); | |
105 | } | |
106 | ||
c8142599 VS |
107 | #ifdef GRUB_MACHINE_EFI |
108 | /* Find the optimal number of pages for the memory map. Is it better to | |
109 | move this code to efi/mm.c? */ | |
110 | static grub_efi_uintn_t | |
111 | find_efi_mmap_size (void) | |
112 | { | |
113 | static grub_efi_uintn_t mmap_size = 0; | |
114 | ||
115 | if (mmap_size != 0) | |
116 | return mmap_size; | |
117 | ||
118 | mmap_size = (1 << 12); | |
119 | while (1) | |
120 | { | |
121 | int ret; | |
122 | grub_efi_memory_descriptor_t *mmap; | |
123 | grub_efi_uintn_t desc_size; | |
124 | ||
125 | mmap = grub_malloc (mmap_size); | |
126 | if (! mmap) | |
127 | return 0; | |
128 | ||
129 | ret = grub_efi_get_memory_map (&mmap_size, mmap, 0, &desc_size, 0); | |
130 | grub_free (mmap); | |
131 | ||
132 | if (ret < 0) | |
119d11c8 VS |
133 | { |
134 | grub_error (GRUB_ERR_IO, "cannot get memory map"); | |
135 | return 0; | |
136 | } | |
c8142599 VS |
137 | else if (ret > 0) |
138 | break; | |
139 | ||
140 | mmap_size += (1 << 12); | |
141 | } | |
142 | ||
143 | /* Increase the size a bit for safety, because GRUB allocates more on | |
144 | later, and EFI itself may allocate more. */ | |
145 | mmap_size += (1 << 12); | |
146 | ||
be1a7ce0 CW |
147 | mmap_size = page_align (mmap_size); |
148 | return mmap_size; | |
c8142599 VS |
149 | } |
150 | ||
151 | #endif | |
152 | ||
c9baafe7 | 153 | /* Find the optimal number of pages for the memory map. */ |
154 | static grub_size_t | |
155 | find_mmap_size (void) | |
156 | { | |
157 | grub_size_t count = 0, mmap_size; | |
158 | ||
df3df23d VS |
159 | auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, |
160 | grub_memory_type_t); | |
c9baafe7 | 161 | int NESTED_FUNC_ATTR hook (grub_uint64_t addr __attribute__ ((unused)), |
162 | grub_uint64_t size __attribute__ ((unused)), | |
df3df23d | 163 | grub_memory_type_t type __attribute__ ((unused))) |
c9baafe7 | 164 | { |
165 | count++; | |
166 | return 0; | |
167 | } | |
b39f9d20 | 168 | |
09d842b9 | 169 | grub_mmap_iterate (hook); |
b39f9d20 | 170 | |
c9baafe7 | 171 | mmap_size = count * sizeof (struct grub_e820_mmap); |
172 | ||
173 | /* Increase the size a bit for safety, because GRUB allocates more on | |
174 | later. */ | |
175 | mmap_size += (1 << 12); | |
b39f9d20 | 176 | |
c9baafe7 | 177 | return page_align (mmap_size); |
178 | } | |
179 | ||
180 | static void | |
181 | free_pages (void) | |
182 | { | |
55b40bc6 VS |
183 | grub_relocator_unload (relocator); |
184 | relocator = NULL; | |
c9baafe7 | 185 | real_mode_mem = prot_mode_mem = initrd_mem = 0; |
55b40bc6 | 186 | real_mode_target = prot_mode_target = initrd_mem_target = 0; |
c9baafe7 | 187 | } |
188 | ||
189 | /* Allocate pages for the real mode code and the protected mode code | |
190 | for linux as well as a memory map buffer. */ | |
55b40bc6 | 191 | static grub_err_t |
c9baafe7 | 192 | allocate_pages (grub_size_t prot_size) |
193 | { | |
194 | grub_size_t real_size, mmap_size; | |
55b40bc6 | 195 | grub_err_t err; |
c9baafe7 | 196 | |
197 | /* Make sure that each size is aligned to a page boundary. */ | |
a06eb03a | 198 | real_size = GRUB_LINUX_CL_OFFSET + maximal_cmdline_size; |
c9baafe7 | 199 | prot_size = page_align (prot_size); |
200 | mmap_size = find_mmap_size (); | |
201 | ||
c8142599 VS |
202 | #ifdef GRUB_MACHINE_EFI |
203 | efi_mmap_size = find_efi_mmap_size (); | |
119d11c8 VS |
204 | if (efi_mmap_size == 0) |
205 | return grub_errno; | |
c8142599 VS |
206 | #endif |
207 | ||
c9baafe7 | 208 | grub_dprintf ("linux", "real_size = %x, prot_size = %x, mmap_size = %x\n", |
209 | (unsigned) real_size, (unsigned) prot_size, (unsigned) mmap_size); | |
b39f9d20 | 210 | |
c9baafe7 | 211 | /* Calculate the number of pages; Combine the real mode code with |
212 | the memory map buffer for simplicity. */ | |
c8142599 | 213 | real_mode_pages = ((real_size + mmap_size + efi_mmap_size) >> 12); |
c9baafe7 | 214 | prot_mode_pages = (prot_size >> 12); |
b39f9d20 | 215 | |
c9baafe7 | 216 | /* Initialize the memory pointers with NULL for convenience. */ |
1007d1f5 | 217 | free_pages (); |
b39f9d20 | 218 | |
55b40bc6 VS |
219 | relocator = grub_relocator_new (); |
220 | if (!relocator) | |
221 | { | |
222 | err = grub_errno; | |
223 | goto fail; | |
224 | } | |
225 | ||
aa9f3bff | 226 | /* FIXME: Should request low memory from the heap when this feature is |
227 | implemented. */ | |
2f2a3442 | 228 | |
df3df23d VS |
229 | auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, |
230 | grub_memory_type_t); | |
231 | int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size, | |
232 | grub_memory_type_t type) | |
10fc3eb9 | 233 | { |
234 | /* We must put real mode code in the traditional space. */ | |
235 | ||
df3df23d | 236 | if (type == GRUB_MEMORY_AVAILABLE |
10fc3eb9 | 237 | && addr <= 0x90000) |
238 | { | |
239 | if (addr < 0x10000) | |
240 | { | |
241 | size += addr - 0x10000; | |
242 | addr = 0x10000; | |
243 | } | |
244 | ||
245 | if (addr + size > 0x90000) | |
246 | size = 0x90000 - addr; | |
247 | ||
c8142599 | 248 | if (real_size + mmap_size + efi_mmap_size > size) |
10fc3eb9 | 249 | return 0; |
250 | ||
c8142599 | 251 | real_mode_target = ((addr + size) - (real_size + mmap_size + efi_mmap_size)); |
10fc3eb9 | 252 | return 1; |
253 | } | |
254 | ||
255 | return 0; | |
256 | } | |
09d842b9 | 257 | grub_mmap_iterate (hook); |
55b40bc6 | 258 | if (! real_mode_target) |
c9baafe7 | 259 | { |
55b40bc6 | 260 | err = grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate real mode pages"); |
c9baafe7 | 261 | goto fail; |
262 | } | |
263 | ||
4b2ec20b VS |
264 | { |
265 | grub_relocator_chunk_t ch; | |
266 | err = grub_relocator_alloc_chunk_addr (relocator, &ch, | |
267 | real_mode_target, | |
268 | (real_size + mmap_size | |
269 | + efi_mmap_size)); | |
270 | if (err) | |
271 | goto fail; | |
272 | real_mode_mem = get_virtual_current_address (ch); | |
273 | } | |
c8142599 | 274 | efi_mmap_buf = (grub_uint8_t *) real_mode_mem + real_size + mmap_size; |
55b40bc6 | 275 | |
c8142599 | 276 | prot_mode_target = GRUB_LINUX_BZIMAGE_ADDR; |
55b40bc6 | 277 | |
4b2ec20b VS |
278 | { |
279 | grub_relocator_chunk_t ch; | |
280 | err = grub_relocator_alloc_chunk_addr (relocator, &ch, | |
281 | prot_mode_target, prot_size); | |
282 | if (err) | |
283 | goto fail; | |
284 | prot_mode_mem = get_virtual_current_address (ch); | |
285 | } | |
c9baafe7 | 286 | |
287 | grub_dprintf ("linux", "real_mode_mem = %lx, real_mode_pages = %x, " | |
288 | "prot_mode_mem = %lx, prot_mode_pages = %x\n", | |
289 | (unsigned long) real_mode_mem, (unsigned) real_mode_pages, | |
290 | (unsigned long) prot_mode_mem, (unsigned) prot_mode_pages); | |
291 | ||
55b40bc6 | 292 | return GRUB_ERR_NONE; |
c9baafe7 | 293 | |
294 | fail: | |
295 | free_pages (); | |
55b40bc6 | 296 | return err; |
c9baafe7 | 297 | } |
298 | ||
119d11c8 | 299 | static grub_err_t |
c9baafe7 | 300 | grub_e820_add_region (struct grub_e820_mmap *e820_map, int *e820_num, |
301 | grub_uint64_t start, grub_uint64_t size, | |
302 | grub_uint32_t type) | |
303 | { | |
304 | int n = *e820_num; | |
305 | ||
306 | if (n >= GRUB_E820_MAX_ENTRY) | |
119d11c8 VS |
307 | { |
308 | return grub_error (GRUB_ERR_OUT_OF_RANGE, | |
309 | "Too many e820 memory map entries"); | |
310 | } | |
c9baafe7 | 311 | |
312 | if ((n > 0) && (e820_map[n - 1].addr + e820_map[n - 1].size == start) && | |
313 | (e820_map[n - 1].type == type)) | |
314 | e820_map[n - 1].size += size; | |
315 | else | |
316 | { | |
317 | e820_map[n].addr = start; | |
318 | e820_map[n].size = size; | |
319 | e820_map[n].type = type; | |
320 | (*e820_num)++; | |
321 | } | |
119d11c8 | 322 | return GRUB_ERR_NONE; |
c9baafe7 | 323 | } |
324 | ||
c8142599 | 325 | static grub_err_t |
14aad807 | 326 | grub_linux_setup_video (struct linux_kernel_params *params) |
327 | { | |
328 | struct grub_video_mode_info mode_info; | |
d3539132 | 329 | void *framebuffer; |
c8142599 | 330 | grub_err_t err; |
3395fe52 | 331 | grub_video_driver_id_t driver_id; |
d35d0d37 | 332 | const char *gfxlfbvar = grub_env_get ("gfxpayloadforcelfb"); |
3395fe52 VS |
333 | |
334 | driver_id = grub_video_get_driver_id (); | |
335 | ||
336 | if (driver_id == GRUB_VIDEO_DRIVER_NONE) | |
337 | return 1; | |
c8142599 | 338 | |
c8142599 | 339 | err = grub_video_get_info_and_fini (&mode_info, &framebuffer); |
14aad807 | 340 | |
c8142599 | 341 | if (err) |
74e31b5c VS |
342 | { |
343 | grub_errno = GRUB_ERR_NONE; | |
344 | return 1; | |
345 | } | |
14aad807 | 346 | |
347 | params->lfb_width = mode_info.width; | |
348 | params->lfb_height = mode_info.height; | |
349 | params->lfb_depth = mode_info.bpp; | |
350 | params->lfb_line_len = mode_info.pitch; | |
351 | ||
d3539132 | 352 | params->lfb_base = (grub_size_t) framebuffer; |
7cae4377 | 353 | params->lfb_size = ALIGN_UP (params->lfb_line_len * params->lfb_height, 65536); |
14aad807 | 354 | |
7a6bf9f2 | 355 | params->red_mask_size = mode_info.red_mask_size; |
356 | params->red_field_pos = mode_info.red_field_pos; | |
357 | params->green_mask_size = mode_info.green_mask_size; | |
358 | params->green_field_pos = mode_info.green_field_pos; | |
359 | params->blue_mask_size = mode_info.blue_mask_size; | |
360 | params->blue_field_pos = mode_info.blue_field_pos; | |
361 | params->reserved_mask_size = mode_info.reserved_mask_size; | |
362 | params->reserved_field_pos = mode_info.reserved_field_pos; | |
14aad807 | 363 | |
3395fe52 VS |
364 | if (gfxlfbvar && (gfxlfbvar[0] == '1' || gfxlfbvar[0] == 'y')) |
365 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE; | |
366 | else | |
367 | { | |
368 | switch (driver_id) | |
369 | { | |
370 | case GRUB_VIDEO_DRIVER_VBE: | |
371 | params->lfb_size >>= 16; | |
372 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_VESA; | |
373 | break; | |
374 | ||
375 | case GRUB_VIDEO_DRIVER_EFI_UGA: | |
376 | case GRUB_VIDEO_DRIVER_EFI_GOP: | |
377 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_EFIFB; | |
378 | break; | |
379 | ||
380 | /* FIXME: check if better id is available. */ | |
381 | case GRUB_VIDEO_DRIVER_SM712: | |
67b1e5c9 | 382 | case GRUB_VIDEO_DRIVER_SIS315PRO: |
3395fe52 VS |
383 | case GRUB_VIDEO_DRIVER_VGA: |
384 | case GRUB_VIDEO_DRIVER_CIRRUS: | |
385 | case GRUB_VIDEO_DRIVER_BOCHS: | |
fe8d4a7b | 386 | case GRUB_VIDEO_DRIVER_RADEON_FULOONG2E: |
3395fe52 VS |
387 | /* Make gcc happy. */ |
388 | case GRUB_VIDEO_DRIVER_SDL: | |
389 | case GRUB_VIDEO_DRIVER_NONE: | |
390 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE; | |
391 | break; | |
392 | } | |
393 | } | |
61229557 | 394 | |
395 | #ifdef GRUB_MACHINE_PCBIOS | |
396 | /* VESA packed modes may come with zeroed mask sizes, which need | |
397 | to be set here according to DAC Palette width. If we don't, | |
398 | this results in Linux displaying a black screen. */ | |
3395fe52 | 399 | if (driver_id == GRUB_VIDEO_DRIVER_VBE && mode_info.bpp <= 8) |
61229557 | 400 | { |
401 | struct grub_vbe_info_block controller_info; | |
402 | int status; | |
403 | int width = 8; | |
404 | ||
405 | status = grub_vbe_bios_get_controller_info (&controller_info); | |
406 | ||
407 | if (status == GRUB_VBE_STATUS_OK && | |
408 | (controller_info.capabilities & GRUB_VBE_CAPABILITY_DACWIDTH)) | |
409 | status = grub_vbe_bios_set_dac_palette_width (&width); | |
410 | ||
411 | if (status != GRUB_VBE_STATUS_OK) | |
412 | /* 6 is default after mode reset. */ | |
413 | width = 6; | |
414 | ||
415 | params->red_mask_size = params->green_mask_size | |
416 | = params->blue_mask_size = width; | |
417 | params->reserved_mask_size = 0; | |
418 | } | |
419 | #endif | |
420 | ||
c8142599 | 421 | return GRUB_ERR_NONE; |
14aad807 | 422 | } |
423 | ||
c9baafe7 | 424 | static grub_err_t |
a9368fd3 | 425 | grub_linux_boot (void) |
c9baafe7 | 426 | { |
427 | struct linux_kernel_params *params; | |
428 | int e820_num; | |
ad760f81 | 429 | grub_err_t err = 0; |
d35d0d37 VS |
430 | const char *modevar; |
431 | char *tmp; | |
55b40bc6 | 432 | struct grub_relocator32_state state; |
3eb5ed4e | 433 | |
c9baafe7 | 434 | params = real_mode_mem; |
435 | ||
8071fb79 VS |
436 | #ifdef GRUB_MACHINE_IEEE1275 |
437 | { | |
d35d0d37 | 438 | const char *bootpath; |
8071fb79 VS |
439 | grub_ssize_t len; |
440 | ||
441 | bootpath = grub_env_get ("root"); | |
442 | if (bootpath) | |
443 | grub_ieee1275_set_property (grub_ieee1275_chosen, | |
444 | "bootpath", bootpath, | |
445 | grub_strlen (bootpath) + 1, | |
446 | &len); | |
447 | } | |
448 | #endif | |
449 | ||
55b40bc6 VS |
450 | grub_dprintf ("linux", "code32_start = %x\n", |
451 | (unsigned) params->code32_start); | |
c9baafe7 | 452 | |
df3df23d VS |
453 | auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, |
454 | grub_memory_type_t); | |
455 | int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size, | |
456 | grub_memory_type_t type) | |
c9baafe7 | 457 | { |
119d11c8 | 458 | grub_uint32_t e820_type; |
c9baafe7 | 459 | switch (type) |
460 | { | |
df3df23d | 461 | case GRUB_MEMORY_AVAILABLE: |
119d11c8 | 462 | e820_type = GRUB_E820_RAM; |
c9baafe7 | 463 | break; |
464 | ||
df3df23d | 465 | case GRUB_MEMORY_ACPI: |
119d11c8 | 466 | e820_type = GRUB_E820_ACPI; |
09d842b9 | 467 | break; |
09d842b9 | 468 | |
df3df23d | 469 | case GRUB_MEMORY_NVS: |
119d11c8 | 470 | e820_type = GRUB_E820_NVS; |
09d842b9 | 471 | break; |
09d842b9 | 472 | |
18a38098 | 473 | case GRUB_MEMORY_BADRAM: |
119d11c8 | 474 | e820_type = GRUB_E820_BADRAM; |
09d842b9 | 475 | break; |
09d842b9 | 476 | |
c9baafe7 | 477 | default: |
119d11c8 | 478 | e820_type = GRUB_E820_RESERVED; |
c9baafe7 | 479 | } |
119d11c8 VS |
480 | if (grub_e820_add_region (params->e820_map, &e820_num, |
481 | addr, size, e820_type)) | |
482 | return 1; | |
483 | ||
c9baafe7 | 484 | return 0; |
485 | } | |
486 | ||
487 | e820_num = 0; | |
119d11c8 VS |
488 | if (grub_mmap_iterate (hook)) |
489 | return grub_errno; | |
c9baafe7 | 490 | params->mmap_size = e820_num; |
491 | ||
d3539132 | 492 | modevar = grub_env_get ("gfxpayload"); |
493 | ||
494 | /* Now all graphical modes are acceptable. | |
495 | May change in future if we have modes without framebuffer. */ | |
496 | if (modevar && *modevar != 0) | |
497 | { | |
3c83bc50 | 498 | tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar); |
d3539132 | 499 | if (! tmp) |
500 | return grub_errno; | |
b1257f65 | 501 | #if ACCEPTS_PURE_TEXT |
df48e9e1 | 502 | err = grub_video_set_mode (tmp, 0, 0); |
b1257f65 VS |
503 | #else |
504 | err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0); | |
505 | #endif | |
d3539132 | 506 | grub_free (tmp); |
507 | } | |
d3539132 | 508 | else |
b1257f65 VS |
509 | { |
510 | #if ACCEPTS_PURE_TEXT | |
511 | err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0, 0); | |
512 | #else | |
513 | err = grub_video_set_mode (DEFAULT_VIDEO_MODE, | |
514 | GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0); | |
515 | #endif | |
516 | } | |
d3539132 | 517 | if (err) |
518 | { | |
519 | grub_print_error (); | |
10f0117b | 520 | grub_puts_ (N_("Booting in blind mode")); |
d3539132 | 521 | grub_errno = GRUB_ERR_NONE; |
522 | } | |
523 | ||
3395fe52 | 524 | if (grub_linux_setup_video (params)) |
d3539132 | 525 | { |
8b0800f6 | 526 | #if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU) |
8040619d | 527 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_TEXT; |
c8142599 | 528 | params->video_mode = 0x3; |
c8142599 VS |
529 | #else |
530 | params->have_vga = 0; | |
531 | params->video_mode = 0; | |
532 | params->video_width = 0; | |
533 | params->video_height = 0; | |
534 | #endif | |
d3539132 | 535 | } |
536 | ||
b09db61d | 537 | /* Initialize these last, because terminal position could be affected by printfs above. */ |
8071fb79 | 538 | #ifndef GRUB_MACHINE_IEEE1275 |
8040619d | 539 | if (params->have_vga == GRUB_VIDEO_LINUX_TYPE_TEXT) |
8071fb79 | 540 | #endif |
b09db61d | 541 | { |
288031b3 VS |
542 | grub_term_output_t term; |
543 | int found = 0; | |
544 | FOR_ACTIVE_TERM_OUTPUTS(term) | |
5a1ed29e | 545 | if (grub_strcmp (term->name, "vga_text") == 0 |
8071fb79 VS |
546 | || grub_strcmp (term->name, "console") == 0 |
547 | || grub_strcmp (term->name, "ofconsole") == 0) | |
288031b3 VS |
548 | { |
549 | grub_uint16_t pos = grub_term_getxy (term); | |
550 | params->video_cursor_x = pos >> 8; | |
551 | params->video_cursor_y = pos & 0xff; | |
8071fb79 VS |
552 | params->video_width = grub_term_width (term); |
553 | params->video_height = grub_term_height (term); | |
288031b3 | 554 | found = 1; |
5a1ed29e | 555 | break; |
288031b3 VS |
556 | } |
557 | if (!found) | |
558 | { | |
559 | params->video_cursor_x = 0; | |
560 | params->video_cursor_y = 0; | |
8071fb79 VS |
561 | params->video_width = 80; |
562 | params->video_height = 25; | |
288031b3 | 563 | } |
b09db61d | 564 | } |
565 | ||
8071fb79 VS |
566 | #ifdef GRUB_MACHINE_IEEE1275 |
567 | { | |
568 | params->ofw_signature = GRUB_LINUX_OFW_SIGNATURE; | |
569 | params->ofw_num_items = 1; | |
570 | params->ofw_cif_handler = (grub_uint32_t) grub_ieee1275_entry_fn; | |
571 | params->ofw_idt = 0; | |
572 | } | |
573 | #endif | |
574 | ||
c8142599 VS |
575 | #ifdef GRUB_MACHINE_EFI |
576 | { | |
91b58e6b | 577 | grub_efi_uintn_t efi_desc_size; |
3c62402d | 578 | grub_size_t efi_mmap_target; |
c8142599 | 579 | grub_efi_uint32_t efi_desc_version; |
91b58e6b VS |
580 | err = grub_efi_finish_boot_services (&efi_mmap_size, efi_mmap_buf, NULL, |
581 | &efi_desc_size, &efi_desc_version); | |
582 | if (err) | |
583 | return err; | |
c8142599 | 584 | |
c8142599 | 585 | /* Note that no boot services are available from here. */ |
3c62402d VS |
586 | efi_mmap_target = real_mode_target |
587 | + ((grub_uint8_t *) efi_mmap_buf - (grub_uint8_t *) real_mode_mem); | |
c8142599 VS |
588 | /* Pass EFI parameters. */ |
589 | if (grub_le_to_cpu16 (params->version) >= 0x0206) | |
590 | { | |
591 | params->v0206.efi_mem_desc_size = efi_desc_size; | |
592 | params->v0206.efi_mem_desc_version = efi_desc_version; | |
3c62402d | 593 | params->v0206.efi_mmap = efi_mmap_target; |
c8142599 VS |
594 | params->v0206.efi_mmap_size = efi_mmap_size; |
595 | #ifdef __x86_64__ | |
3c62402d | 596 | params->v0206.efi_mmap_hi = (efi_mmap_target >> 32); |
c8142599 VS |
597 | #endif |
598 | } | |
599 | else if (grub_le_to_cpu16 (params->version) >= 0x0204) | |
600 | { | |
601 | params->v0204.efi_mem_desc_size = efi_desc_size; | |
602 | params->v0204.efi_mem_desc_version = efi_desc_version; | |
3c62402d | 603 | params->v0204.efi_mmap = efi_mmap_target; |
c8142599 VS |
604 | params->v0204.efi_mmap_size = efi_mmap_size; |
605 | } | |
606 | } | |
607 | #endif | |
608 | ||
55b40bc6 VS |
609 | /* FIXME. */ |
610 | /* asm volatile ("lidt %0" : : "m" (idt_desc)); */ | |
9056cbf3 | 611 | state.ebp = state.edi = state.ebx = 0; |
55b40bc6 | 612 | state.esi = real_mode_target; |
8071fb79 | 613 | state.esp = real_mode_target; |
55b40bc6 VS |
614 | state.eip = params->code32_start; |
615 | return grub_relocator32_boot (relocator, state); | |
c9baafe7 | 616 | } |
617 | ||
618 | static grub_err_t | |
619 | grub_linux_unload (void) | |
620 | { | |
c9baafe7 | 621 | grub_dl_unref (my_mod); |
622 | loaded = 0; | |
623 | return GRUB_ERR_NONE; | |
624 | } | |
625 | ||
b1b797cb | 626 | static grub_err_t |
627 | grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), | |
628 | int argc, char *argv[]) | |
c9baafe7 | 629 | { |
630 | grub_file_t file = 0; | |
631 | struct linux_kernel_header lh; | |
632 | struct linux_kernel_params *params; | |
633 | grub_uint8_t setup_sects; | |
634 | grub_size_t real_size, prot_size; | |
635 | grub_ssize_t len; | |
636 | int i; | |
c9baafe7 | 637 | |
638 | grub_dl_ref (my_mod); | |
b39f9d20 | 639 | |
c9baafe7 | 640 | if (argc == 0) |
641 | { | |
642 | grub_error (GRUB_ERR_BAD_ARGUMENT, "no kernel specified"); | |
643 | goto fail; | |
644 | } | |
645 | ||
646 | file = grub_file_open (argv[0]); | |
647 | if (! file) | |
87a4623b | 648 | goto fail; |
c9baafe7 | 649 | |
5c5215d5 | 650 | if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh)) |
c9baafe7 | 651 | { |
7a45a539 VS |
652 | if (!grub_errno) |
653 | grub_error (GRUB_ERR_READ_ERROR, N_("premature end of file %s"), | |
654 | argv[0]); | |
c9baafe7 | 655 | goto fail; |
656 | } | |
657 | ||
658 | if (lh.boot_flag != grub_cpu_to_le16 (0xaa55)) | |
659 | { | |
660 | grub_error (GRUB_ERR_BAD_OS, "invalid magic number"); | |
661 | goto fail; | |
662 | } | |
663 | ||
664 | if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS) | |
665 | { | |
666 | grub_error (GRUB_ERR_BAD_OS, "too many setup sectors"); | |
667 | goto fail; | |
668 | } | |
669 | ||
92f33540 | 670 | if (! (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL)) |
c9baafe7 | 671 | { |
92f33540 | 672 | grub_error (GRUB_ERR_BAD_OS, "zImage doesn't support 32-bit boot" |
673 | #ifdef GRUB_MACHINE_PCBIOS | |
674 | " (try with `linux16')" | |
675 | #endif | |
676 | ); | |
c9baafe7 | 677 | goto fail; |
678 | } | |
679 | ||
92f33540 | 680 | /* FIXME: 2.03 is not always good enough (Linux 2.4 can be 2.03 and |
681 | still not support 32-bit boot. */ | |
682 | if (lh.header != grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE) | |
683 | || grub_le_to_cpu16 (lh.version) < 0x0203) | |
c9baafe7 | 684 | { |
92f33540 | 685 | grub_error (GRUB_ERR_BAD_OS, "version too old for 32-bit boot" |
686 | #ifdef GRUB_MACHINE_PCBIOS | |
687 | " (try with `linux16')" | |
688 | #endif | |
689 | ); | |
c9baafe7 | 690 | goto fail; |
691 | } | |
692 | ||
a06eb03a VS |
693 | if (grub_le_to_cpu16 (lh.version) >= 0x0206) |
694 | maximal_cmdline_size = grub_le_to_cpu32 (lh.cmdline_size) + 1; | |
695 | else | |
696 | maximal_cmdline_size = 256; | |
697 | ||
698 | if (maximal_cmdline_size < 128) | |
699 | maximal_cmdline_size = 128; | |
700 | ||
c9baafe7 | 701 | setup_sects = lh.setup_sects; |
b39f9d20 | 702 | |
c9baafe7 | 703 | /* If SETUP_SECTS is not set, set it to the default (4). */ |
704 | if (! setup_sects) | |
705 | setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS; | |
706 | ||
707 | real_size = setup_sects << GRUB_DISK_SECTOR_BITS; | |
708 | prot_size = grub_file_size (file) - real_size - GRUB_DISK_SECTOR_SIZE; | |
b39f9d20 | 709 | |
55b40bc6 | 710 | if (allocate_pages (prot_size)) |
c9baafe7 | 711 | goto fail; |
b39f9d20 | 712 | |
c9baafe7 | 713 | params = (struct linux_kernel_params *) real_mode_mem; |
a06eb03a | 714 | grub_memset (params, 0, GRUB_LINUX_CL_OFFSET + maximal_cmdline_size); |
c9baafe7 | 715 | grub_memcpy (¶ms->setup_sects, &lh.setup_sects, sizeof (lh) - 0x1F1); |
716 | ||
717 | params->ps_mouse = params->padding10 = 0; | |
718 | ||
719 | len = 0x400 - sizeof (lh); | |
720 | if (grub_file_read (file, (char *) real_mode_mem + sizeof (lh), len) != len) | |
721 | { | |
7a45a539 VS |
722 | if (!grub_errno) |
723 | grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"), | |
724 | argv[0]); | |
c9baafe7 | 725 | goto fail; |
726 | } | |
727 | ||
7f8b0fd7 | 728 | params->type_of_loader = GRUB_LINUX_BOOT_LOADER_TYPE; |
c9baafe7 | 729 | |
b09db61d | 730 | /* These two are used (instead of cmd_line_ptr) by older versions of Linux, |
731 | and otherwise ignored. */ | |
c9baafe7 | 732 | params->cl_magic = GRUB_LINUX_CL_MAGIC; |
733 | params->cl_offset = 0x1000; | |
b09db61d | 734 | |
55b40bc6 | 735 | params->cmd_line_ptr = real_mode_target + 0x1000; |
c9baafe7 | 736 | params->ramdisk_image = 0; |
737 | params->ramdisk_size = 0; | |
738 | ||
739 | params->heap_end_ptr = GRUB_LINUX_HEAP_END_OFFSET; | |
740 | params->loadflags |= GRUB_LINUX_FLAG_CAN_USE_HEAP; | |
741 | ||
742 | /* These are not needed to be precise, because Linux uses these values | |
743 | only to raise an error when the decompression code cannot find good | |
744 | space. */ | |
745 | params->ext_mem = ((32 * 0x100000) >> 10); | |
746 | params->alt_mem = ((32 * 0x100000) >> 10); | |
b39f9d20 | 747 | |
b09db61d | 748 | /* Ignored by Linux. */ |
749 | params->video_page = 0; | |
750 | ||
b09db61d | 751 | /* Only used when `video_mode == 0x7', otherwise ignored. */ |
c9baafe7 | 752 | params->video_ega_bx = 0; |
b09db61d | 753 | |
c9baafe7 | 754 | params->font_size = 16; /* XXX */ |
755 | ||
c8142599 VS |
756 | #ifdef GRUB_MACHINE_EFI |
757 | if (grub_le_to_cpu16 (params->version) >= 0x0206) | |
758 | { | |
759 | params->v0206.efi_signature = GRUB_LINUX_EFI_SIGNATURE; | |
760 | params->v0206.efi_system_table = (grub_uint32_t) (unsigned long) grub_efi_system_table; | |
761 | #ifdef __x86_64__ | |
762 | params->v0206.efi_system_table_hi = (grub_uint32_t) ((grub_uint64_t) grub_efi_system_table >> 32); | |
763 | #endif | |
764 | } | |
765 | else if (grub_le_to_cpu16 (params->version) >= 0x0204) | |
766 | { | |
767 | params->v0204.efi_signature = GRUB_LINUX_EFI_SIGNATURE_0204; | |
768 | params->v0204.efi_system_table = (grub_uint32_t) (unsigned long) grub_efi_system_table; | |
769 | } | |
770 | #endif | |
771 | ||
c9baafe7 | 772 | /* The other parameters are filled when booting. */ |
773 | ||
774 | grub_file_seek (file, real_size + GRUB_DISK_SECTOR_SIZE); | |
775 | ||
1a064917 RM |
776 | grub_dprintf ("linux", "bzImage, setup=0x%x, size=0x%x\n", |
777 | (unsigned) real_size, (unsigned) prot_size); | |
c9baafe7 | 778 | |
1007d1f5 | 779 | /* Look for memory size and video mode specified on the command line. */ |
c9baafe7 | 780 | linux_mem_size = 0; |
c9baafe7 | 781 | for (i = 1; i < argc; i++) |
b01f0548 | 782 | #ifdef GRUB_MACHINE_PCBIOS |
9c323f09 | 783 | if (grub_memcmp (argv[i], "vga=", 4) == 0) |
784 | { | |
785 | /* Video mode selection support. */ | |
786 | char *val = argv[i] + 4; | |
3eb5ed4e | 787 | unsigned vid_mode = GRUB_LINUX_VID_MODE_NORMAL; |
e31bb619 | 788 | struct grub_vesa_mode_table_entry *linux_mode; |
3eb5ed4e | 789 | grub_err_t err; |
790 | char *buf; | |
9c323f09 | 791 | |
2b36fbf4 VS |
792 | grub_dl_load ("vbe"); |
793 | ||
9c323f09 | 794 | if (grub_strcmp (val, "normal") == 0) |
795 | vid_mode = GRUB_LINUX_VID_MODE_NORMAL; | |
796 | else if (grub_strcmp (val, "ext") == 0) | |
797 | vid_mode = GRUB_LINUX_VID_MODE_EXTENDED; | |
1007d1f5 | 798 | else if (grub_strcmp (val, "ask") == 0) |
cba416eb | 799 | { |
10f0117b | 800 | grub_puts_ (N_("Legacy `ask' parameter no longer supported.")); |
6c67de15 | 801 | |
802 | /* We usually would never do this in a loader, but "vga=ask" means user | |
803 | requested interaction, so it can't hurt to request keyboard input. */ | |
804 | grub_wait_after_message (); | |
805 | ||
cba416eb | 806 | goto fail; |
807 | } | |
9c323f09 | 808 | else |
809 | vid_mode = (grub_uint16_t) grub_strtoul (val, 0, 0); | |
810 | ||
112972a9 | 811 | switch (vid_mode) |
812 | { | |
813 | case 0: | |
3eb5ed4e | 814 | case GRUB_LINUX_VID_MODE_NORMAL: |
815 | grub_env_set ("gfxpayload", "text"); | |
10f0117b VS |
816 | grub_printf_ (N_("%s is deprecated. " |
817 | "Use set gfxpayload=text before " | |
818 | "linux command instead.\n"), | |
b39f9d20 | 819 | argv[i]); |
112972a9 | 820 | break; |
3eb5ed4e | 821 | |
112972a9 | 822 | case 1: |
3eb5ed4e | 823 | case GRUB_LINUX_VID_MODE_EXTENDED: |
824 | /* FIXME: support 80x50 text. */ | |
825 | grub_env_set ("gfxpayload", "text"); | |
10f0117b VS |
826 | grub_printf_ (N_("%s is deprecated. " |
827 | "Use set gfxpayload=text before " | |
828 | "linux command instead.\n"), | |
b39f9d20 | 829 | argv[i]); |
112972a9 | 830 | break; |
831 | default: | |
832 | /* Ignore invalid values. */ | |
e31bb619 VS |
833 | if (vid_mode < GRUB_VESA_MODE_TABLE_START || |
834 | vid_mode > GRUB_VESA_MODE_TABLE_END) | |
3eb5ed4e | 835 | { |
836 | grub_env_set ("gfxpayload", "text"); | |
10f0117b VS |
837 | grub_printf_ (N_("%s is deprecated. Mode %d isn't recognized. " |
838 | "Use set gfxpayload=WIDTHxHEIGHT[xDEPTH] " | |
839 | "before linux command instead.\n"), | |
b39f9d20 | 840 | argv[i], vid_mode); |
3eb5ed4e | 841 | break; |
842 | } | |
843 | ||
e31bb619 VS |
844 | linux_mode = &grub_vesa_mode_table[vid_mode |
845 | - GRUB_VESA_MODE_TABLE_START]; | |
b39f9d20 | 846 | |
61eb45ee | 847 | buf = grub_xasprintf ("%ux%ux%u,%ux%u", |
e31bb619 | 848 | linux_mode->width, linux_mode->height, |
8b442f3f | 849 | linux_mode->depth, |
e31bb619 | 850 | linux_mode->width, linux_mode->height); |
8b442f3f VS |
851 | if (! buf) |
852 | goto fail; | |
853 | ||
10f0117b VS |
854 | grub_printf_ (N_("%s is deprecated. " |
855 | "Use set gfxpayload=%s before " | |
856 | "linux command instead.\n"), | |
b39f9d20 | 857 | argv[i], buf); |
3eb5ed4e | 858 | err = grub_env_set ("gfxpayload", buf); |
859 | grub_free (buf); | |
860 | if (err) | |
861 | goto fail; | |
112972a9 | 862 | } |
9c323f09 | 863 | } |
7c1d00cd | 864 | else |
b01f0548 | 865 | #endif /* GRUB_MACHINE_PCBIOS */ |
7c1d00cd | 866 | if (grub_memcmp (argv[i], "mem=", 4) == 0) |
c9baafe7 | 867 | { |
868 | char *val = argv[i] + 4; | |
b39f9d20 | 869 | |
c9baafe7 | 870 | linux_mem_size = grub_strtoul (val, &val, 0); |
b39f9d20 | 871 | |
c9baafe7 | 872 | if (grub_errno) |
873 | { | |
874 | grub_errno = GRUB_ERR_NONE; | |
875 | linux_mem_size = 0; | |
876 | } | |
877 | else | |
878 | { | |
879 | int shift = 0; | |
b39f9d20 | 880 | |
c9baafe7 | 881 | switch (grub_tolower (val[0])) |
882 | { | |
883 | case 'g': | |
884 | shift += 10; | |
885 | case 'm': | |
886 | shift += 10; | |
887 | case 'k': | |
888 | shift += 10; | |
889 | default: | |
890 | break; | |
891 | } | |
892 | ||
893 | /* Check an overflow. */ | |
894 | if (linux_mem_size > (~0UL >> shift)) | |
895 | linux_mem_size = 0; | |
896 | else | |
897 | linux_mem_size <<= shift; | |
898 | } | |
899 | } | |
28333ad0 | 900 | else if (grub_memcmp (argv[i], "quiet", sizeof ("quiet") - 1) == 0) |
901 | { | |
902 | params->loadflags |= GRUB_LINUX_FLAG_QUIET; | |
903 | } | |
904 | ||
25953e10 SJ |
905 | /* Create kernel command line. */ |
906 | grub_memcpy ((char *)real_mode_mem + GRUB_LINUX_CL_OFFSET, LINUX_IMAGE, | |
907 | sizeof (LINUX_IMAGE)); | |
908 | grub_create_loader_cmdline (argc, argv, | |
909 | (char *)real_mode_mem + GRUB_LINUX_CL_OFFSET | |
910 | + sizeof (LINUX_IMAGE) - 1, | |
05caa461 | 911 | maximal_cmdline_size |
25953e10 | 912 | - (sizeof (LINUX_IMAGE) - 1)); |
c9baafe7 | 913 | |
914 | len = prot_size; | |
7a45a539 VS |
915 | if (grub_file_read (file, prot_mode_mem, len) != len && !grub_errno) |
916 | grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"), | |
917 | argv[0]); | |
c9baafe7 | 918 | |
919 | if (grub_errno == GRUB_ERR_NONE) | |
920 | { | |
a9368fd3 | 921 | grub_loader_set (grub_linux_boot, grub_linux_unload, |
14aad807 | 922 | 0 /* set noreturn=0 in order to avoid grub_console_fini() */); |
c9baafe7 | 923 | loaded = 1; |
924 | } | |
925 | ||
926 | fail: | |
b39f9d20 | 927 | |
c9baafe7 | 928 | if (file) |
929 | grub_file_close (file); | |
930 | ||
931 | if (grub_errno != GRUB_ERR_NONE) | |
932 | { | |
933 | grub_dl_unref (my_mod); | |
934 | loaded = 0; | |
935 | } | |
b1b797cb | 936 | |
937 | return grub_errno; | |
c9baafe7 | 938 | } |
939 | ||
b1b797cb | 940 | static grub_err_t |
941 | grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), | |
942 | int argc, char *argv[]) | |
c9baafe7 | 943 | { |
944 | grub_file_t file = 0; | |
945 | grub_ssize_t size; | |
946 | grub_addr_t addr_min, addr_max; | |
947 | grub_addr_t addr; | |
55b40bc6 | 948 | grub_err_t err; |
c9baafe7 | 949 | struct linux_kernel_header *lh; |
b39f9d20 | 950 | |
c9baafe7 | 951 | if (argc == 0) |
952 | { | |
7fd0baee | 953 | grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified"); |
c9baafe7 | 954 | goto fail; |
955 | } | |
b39f9d20 | 956 | |
c9baafe7 | 957 | if (! loaded) |
958 | { | |
7fd0baee | 959 | grub_error (GRUB_ERR_BAD_ARGUMENT, "you need to load the kernel first"); |
c9baafe7 | 960 | goto fail; |
961 | } | |
962 | ||
fc2ef117 | 963 | grub_file_filter_disable_compression (); |
c9baafe7 | 964 | file = grub_file_open (argv[0]); |
965 | if (! file) | |
966 | goto fail; | |
967 | ||
968 | size = grub_file_size (file); | |
969 | initrd_pages = (page_align (size) >> 12); | |
970 | ||
971 | lh = (struct linux_kernel_header *) real_mode_mem; | |
92907110 | 972 | |
973 | /* Get the highest address available for the initrd. */ | |
974 | if (grub_le_to_cpu16 (lh->version) >= 0x0203) | |
975 | { | |
976 | addr_max = grub_cpu_to_le32 (lh->initrd_addr_max); | |
977 | ||
978 | /* XXX in reality, Linux specifies a bogus value, so | |
979 | it is necessary to make sure that ADDR_MAX does not exceed | |
980 | 0x3fffffff. */ | |
981 | if (addr_max > GRUB_LINUX_INITRD_MAX_ADDRESS) | |
982 | addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS; | |
983 | } | |
984 | else | |
985 | addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS; | |
b39f9d20 | 986 | |
c9baafe7 | 987 | if (linux_mem_size != 0 && linux_mem_size < addr_max) |
988 | addr_max = linux_mem_size; | |
b39f9d20 | 989 | |
c9baafe7 | 990 | /* Linux 2.3.xx has a bug in the memory range check, so avoid |
991 | the last page. | |
992 | Linux 2.2.xx has a bug in the memory range check, which is | |
993 | worse than that of Linux 2.3.xx, so avoid the last 64kb. */ | |
994 | addr_max -= 0x10000; | |
995 | ||
996 | /* Usually, the compression ratio is about 50%. */ | |
55b40bc6 | 997 | addr_min = (grub_addr_t) prot_mode_target + ((prot_mode_pages * 3) << 12) |
c9baafe7 | 998 | + page_align (size); |
b39f9d20 | 999 | |
92907110 | 1000 | /* Put the initrd as high as possible, 4KiB aligned. */ |
1001 | addr = (addr_max - size) & ~0xFFF; | |
c9baafe7 | 1002 | |
92907110 | 1003 | if (addr < addr_min) |
c9baafe7 | 1004 | { |
7fd0baee | 1005 | grub_error (GRUB_ERR_OUT_OF_RANGE, "the initrd is too big"); |
c9baafe7 | 1006 | goto fail; |
1007 | } | |
b39f9d20 | 1008 | |
4b2ec20b VS |
1009 | { |
1010 | grub_relocator_chunk_t ch; | |
1011 | err = grub_relocator_alloc_chunk_align (relocator, &ch, | |
1012 | addr_min, addr, size, 0x1000, | |
1013 | GRUB_RELOCATOR_PREFERENCE_HIGH); | |
1014 | if (err) | |
1015 | return err; | |
1016 | initrd_mem = get_virtual_current_address (ch); | |
1017 | initrd_mem_target = get_physical_target_address (ch); | |
1018 | } | |
b39f9d20 | 1019 | |
c9baafe7 | 1020 | if (grub_file_read (file, initrd_mem, size) != size) |
1021 | { | |
7a45a539 VS |
1022 | if (!grub_errno) |
1023 | grub_error (GRUB_ERR_FILE_READ_ERROR, N_("premature end of file %s"), | |
1024 | argv[0]); | |
c9baafe7 | 1025 | goto fail; |
1026 | } | |
1027 | ||
1a064917 RM |
1028 | grub_dprintf ("linux", "Initrd, addr=0x%x, size=0x%x\n", |
1029 | (unsigned) addr, (unsigned) size); | |
b39f9d20 | 1030 | |
55b40bc6 | 1031 | lh->ramdisk_image = initrd_mem_target; |
c9baafe7 | 1032 | lh->ramdisk_size = size; |
1033 | lh->root_dev = 0x0100; /* XXX */ | |
b39f9d20 | 1034 | |
c9baafe7 | 1035 | fail: |
1036 | if (file) | |
1037 | grub_file_close (file); | |
b1b797cb | 1038 | |
1039 | return grub_errno; | |
c9baafe7 | 1040 | } |
1041 | ||
b1b797cb | 1042 | static grub_command_t cmd_linux, cmd_initrd; |
c9baafe7 | 1043 | |
1044 | GRUB_MOD_INIT(linux) | |
1045 | { | |
b1b797cb | 1046 | cmd_linux = grub_register_command ("linux", grub_cmd_linux, |
809bbfeb | 1047 | 0, N_("Load Linux.")); |
b1b797cb | 1048 | cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd, |
809bbfeb | 1049 | 0, N_("Load initrd.")); |
c9baafe7 | 1050 | my_mod = mod; |
1051 | } | |
1052 | ||
1053 | GRUB_MOD_FINI(linux) | |
1054 | { | |
b1b797cb | 1055 | grub_unregister_command (cmd_linux); |
1056 | grub_unregister_command (cmd_initrd); | |
c9baafe7 | 1057 | } |