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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> |
92750e4c | 37 | #include <grub/linux.h> |
c9baafe7 | 38 | |
e745cf0c VS |
39 | GRUB_MOD_LICENSE ("GPLv3+"); |
40 | ||
e31bb619 VS |
41 | #ifdef GRUB_MACHINE_PCBIOS |
42 | #include <grub/i386/pc/vesa_modes_table.h> | |
43 | #endif | |
44 | ||
c8142599 VS |
45 | #ifdef GRUB_MACHINE_EFI |
46 | #include <grub/efi/efi.h> | |
47 | #define HAS_VGA_TEXT 0 | |
bf26bcc4 | 48 | #define DEFAULT_VIDEO_MODE "auto" |
b1257f65 | 49 | #define ACCEPTS_PURE_TEXT 0 |
8071fb79 VS |
50 | #elif defined (GRUB_MACHINE_IEEE1275) |
51 | #include <grub/ieee1275/ieee1275.h> | |
52 | #define HAS_VGA_TEXT 0 | |
53 | #define DEFAULT_VIDEO_MODE "text" | |
b1257f65 | 54 | #define ACCEPTS_PURE_TEXT 1 |
c8142599 VS |
55 | #else |
56 | #include <grub/i386/pc/vbe.h> | |
57 | #include <grub/i386/pc/console.h> | |
58 | #define HAS_VGA_TEXT 1 | |
59 | #define DEFAULT_VIDEO_MODE "text" | |
b1257f65 | 60 | #define ACCEPTS_PURE_TEXT 1 |
c8142599 VS |
61 | #endif |
62 | ||
c9baafe7 | 63 | static grub_dl_t my_mod; |
64 | ||
65 | static grub_size_t linux_mem_size; | |
66 | static int loaded; | |
c9baafe7 | 67 | static void *prot_mode_mem; |
55b40bc6 | 68 | static grub_addr_t prot_mode_target; |
c9baafe7 | 69 | static void *initrd_mem; |
55b40bc6 | 70 | static grub_addr_t initrd_mem_target; |
807fb77c | 71 | static grub_size_t prot_init_space; |
c9baafe7 | 72 | static grub_uint32_t initrd_pages; |
55b40bc6 | 73 | static struct grub_relocator *relocator = NULL; |
c8142599 | 74 | static void *efi_mmap_buf; |
a06eb03a | 75 | static grub_size_t maximal_cmdline_size; |
a4e5ca80 VS |
76 | static struct linux_kernel_params linux_params; |
77 | static char *linux_cmdline; | |
d3fbca98 VS |
78 | #ifdef GRUB_MACHINE_EFI |
79 | static grub_efi_uintn_t efi_mmap_size; | |
80 | #else | |
81 | static const grub_size_t efi_mmap_size = 0; | |
82 | #endif | |
c9baafe7 | 83 | |
55b40bc6 VS |
84 | /* FIXME */ |
85 | #if 0 | |
c9baafe7 | 86 | struct idt_descriptor |
87 | { | |
88 | grub_uint16_t limit; | |
89 | void *base; | |
90 | } __attribute__ ((packed)); | |
91 | ||
92 | static struct idt_descriptor idt_desc = | |
93 | { | |
94 | 0, | |
95 | 0 | |
96 | }; | |
55b40bc6 | 97 | #endif |
c9baafe7 | 98 | |
99 | static inline grub_size_t | |
100 | page_align (grub_size_t size) | |
101 | { | |
102 | return (size + (1 << 12) - 1) & (~((1 << 12) - 1)); | |
103 | } | |
104 | ||
c8142599 VS |
105 | #ifdef GRUB_MACHINE_EFI |
106 | /* Find the optimal number of pages for the memory map. Is it better to | |
107 | move this code to efi/mm.c? */ | |
108 | static grub_efi_uintn_t | |
109 | find_efi_mmap_size (void) | |
110 | { | |
111 | static grub_efi_uintn_t mmap_size = 0; | |
112 | ||
113 | if (mmap_size != 0) | |
114 | return mmap_size; | |
115 | ||
116 | mmap_size = (1 << 12); | |
117 | while (1) | |
118 | { | |
119 | int ret; | |
120 | grub_efi_memory_descriptor_t *mmap; | |
121 | grub_efi_uintn_t desc_size; | |
35692881 | 122 | grub_efi_uintn_t cur_mmap_size = mmap_size; |
c8142599 | 123 | |
35692881 | 124 | mmap = grub_malloc (cur_mmap_size); |
c8142599 VS |
125 | if (! mmap) |
126 | return 0; | |
127 | ||
35692881 | 128 | ret = grub_efi_get_memory_map (&cur_mmap_size, mmap, 0, &desc_size, 0); |
c8142599 VS |
129 | grub_free (mmap); |
130 | ||
131 | if (ret < 0) | |
119d11c8 VS |
132 | { |
133 | grub_error (GRUB_ERR_IO, "cannot get memory map"); | |
134 | return 0; | |
135 | } | |
c8142599 VS |
136 | else if (ret > 0) |
137 | break; | |
138 | ||
35692881 VS |
139 | if (mmap_size < cur_mmap_size) |
140 | mmap_size = cur_mmap_size; | |
c8142599 VS |
141 | mmap_size += (1 << 12); |
142 | } | |
143 | ||
144 | /* Increase the size a bit for safety, because GRUB allocates more on | |
145 | later, and EFI itself may allocate more. */ | |
f923ad22 | 146 | mmap_size += (3 << 12); |
c8142599 | 147 | |
be1a7ce0 CW |
148 | mmap_size = page_align (mmap_size); |
149 | return mmap_size; | |
c8142599 VS |
150 | } |
151 | ||
152 | #endif | |
153 | ||
d0d4b8a0 CW |
154 | /* Helper for find_mmap_size. */ |
155 | static int | |
156 | count_hook (grub_uint64_t addr __attribute__ ((unused)), | |
157 | grub_uint64_t size __attribute__ ((unused)), | |
158 | grub_memory_type_t type __attribute__ ((unused)), void *data) | |
159 | { | |
160 | grub_size_t *count = data; | |
161 | ||
162 | (*count)++; | |
163 | return 0; | |
164 | } | |
165 | ||
c9baafe7 | 166 | /* Find the optimal number of pages for the memory map. */ |
167 | static grub_size_t | |
168 | find_mmap_size (void) | |
169 | { | |
170 | grub_size_t count = 0, mmap_size; | |
171 | ||
d0d4b8a0 | 172 | grub_mmap_iterate (count_hook, &count); |
b39f9d20 | 173 | |
c9baafe7 | 174 | mmap_size = count * sizeof (struct grub_e820_mmap); |
175 | ||
176 | /* Increase the size a bit for safety, because GRUB allocates more on | |
177 | later. */ | |
178 | mmap_size += (1 << 12); | |
b39f9d20 | 179 | |
c9baafe7 | 180 | return page_align (mmap_size); |
181 | } | |
182 | ||
183 | static void | |
184 | free_pages (void) | |
185 | { | |
55b40bc6 VS |
186 | grub_relocator_unload (relocator); |
187 | relocator = NULL; | |
a4e5ca80 VS |
188 | prot_mode_mem = initrd_mem = 0; |
189 | prot_mode_target = initrd_mem_target = 0; | |
c9baafe7 | 190 | } |
191 | ||
192 | /* Allocate pages for the real mode code and the protected mode code | |
193 | for linux as well as a memory map buffer. */ | |
55b40bc6 | 194 | static grub_err_t |
9be4c45d VS |
195 | allocate_pages (grub_size_t prot_size, grub_size_t *align, |
196 | grub_size_t min_align, int relocatable, | |
39525c22 | 197 | grub_uint64_t preferred_address) |
c9baafe7 | 198 | { |
55b40bc6 | 199 | grub_err_t err; |
c9baafe7 | 200 | |
c9baafe7 | 201 | prot_size = page_align (prot_size); |
b39f9d20 | 202 | |
c9baafe7 | 203 | /* Initialize the memory pointers with NULL for convenience. */ |
1007d1f5 | 204 | free_pages (); |
b39f9d20 | 205 | |
55b40bc6 VS |
206 | relocator = grub_relocator_new (); |
207 | if (!relocator) | |
208 | { | |
209 | err = grub_errno; | |
210 | goto fail; | |
211 | } | |
212 | ||
aa9f3bff | 213 | /* FIXME: Should request low memory from the heap when this feature is |
214 | implemented. */ | |
2f2a3442 | 215 | |
4b2ec20b VS |
216 | { |
217 | grub_relocator_chunk_t ch; | |
9be4c45d VS |
218 | if (relocatable) |
219 | { | |
220 | err = grub_relocator_alloc_chunk_align (relocator, &ch, | |
39525c22 CW |
221 | preferred_address, |
222 | preferred_address, | |
9be4c45d VS |
223 | prot_size, 1, |
224 | GRUB_RELOCATOR_PREFERENCE_LOW, | |
225 | 1); | |
1a11761f | 226 | for (; err && *align + 1 > min_align; (*align)--) |
9be4c45d VS |
227 | { |
228 | grub_errno = GRUB_ERR_NONE; | |
229 | err = grub_relocator_alloc_chunk_align (relocator, &ch, | |
2282da4a VS |
230 | 0x1000000, |
231 | 0xffffffff & ~prot_size, | |
9be4c45d VS |
232 | prot_size, 1 << *align, |
233 | GRUB_RELOCATOR_PREFERENCE_LOW, | |
234 | 1); | |
235 | } | |
236 | if (err) | |
237 | goto fail; | |
238 | } | |
239 | else | |
240 | err = grub_relocator_alloc_chunk_addr (relocator, &ch, | |
39525c22 | 241 | preferred_address, |
9be4c45d | 242 | prot_size); |
4b2ec20b VS |
243 | if (err) |
244 | goto fail; | |
245 | prot_mode_mem = get_virtual_current_address (ch); | |
9be4c45d | 246 | prot_mode_target = get_physical_target_address (ch); |
4b2ec20b | 247 | } |
c9baafe7 | 248 | |
a4e5ca80 | 249 | grub_dprintf ("linux", "prot_mode_mem = %lx, prot_mode_target = %lx, prot_size = %x\n", |
807fb77c | 250 | (unsigned long) prot_mode_mem, (unsigned long) prot_mode_target, |
a4e5ca80 | 251 | (unsigned) prot_size); |
55b40bc6 | 252 | return GRUB_ERR_NONE; |
c9baafe7 | 253 | |
254 | fail: | |
255 | free_pages (); | |
55b40bc6 | 256 | return err; |
c9baafe7 | 257 | } |
258 | ||
119d11c8 | 259 | static grub_err_t |
c9baafe7 | 260 | grub_e820_add_region (struct grub_e820_mmap *e820_map, int *e820_num, |
261 | grub_uint64_t start, grub_uint64_t size, | |
262 | grub_uint32_t type) | |
263 | { | |
264 | int n = *e820_num; | |
265 | ||
c9baafe7 | 266 | if ((n > 0) && (e820_map[n - 1].addr + e820_map[n - 1].size == start) && |
267 | (e820_map[n - 1].type == type)) | |
268 | e820_map[n - 1].size += size; | |
269 | else | |
270 | { | |
271 | e820_map[n].addr = start; | |
272 | e820_map[n].size = size; | |
273 | e820_map[n].type = type; | |
274 | (*e820_num)++; | |
275 | } | |
119d11c8 | 276 | return GRUB_ERR_NONE; |
c9baafe7 | 277 | } |
278 | ||
c8142599 | 279 | static grub_err_t |
14aad807 | 280 | grub_linux_setup_video (struct linux_kernel_params *params) |
281 | { | |
282 | struct grub_video_mode_info mode_info; | |
d3539132 | 283 | void *framebuffer; |
c8142599 | 284 | grub_err_t err; |
3395fe52 | 285 | grub_video_driver_id_t driver_id; |
d35d0d37 | 286 | const char *gfxlfbvar = grub_env_get ("gfxpayloadforcelfb"); |
3395fe52 VS |
287 | |
288 | driver_id = grub_video_get_driver_id (); | |
289 | ||
290 | if (driver_id == GRUB_VIDEO_DRIVER_NONE) | |
291 | return 1; | |
c8142599 | 292 | |
c8142599 | 293 | err = grub_video_get_info_and_fini (&mode_info, &framebuffer); |
14aad807 | 294 | |
c8142599 | 295 | if (err) |
74e31b5c VS |
296 | { |
297 | grub_errno = GRUB_ERR_NONE; | |
298 | return 1; | |
299 | } | |
14aad807 | 300 | |
301 | params->lfb_width = mode_info.width; | |
302 | params->lfb_height = mode_info.height; | |
303 | params->lfb_depth = mode_info.bpp; | |
304 | params->lfb_line_len = mode_info.pitch; | |
305 | ||
d3539132 | 306 | params->lfb_base = (grub_size_t) framebuffer; |
7cae4377 | 307 | params->lfb_size = ALIGN_UP (params->lfb_line_len * params->lfb_height, 65536); |
14aad807 | 308 | |
7a6bf9f2 | 309 | params->red_mask_size = mode_info.red_mask_size; |
310 | params->red_field_pos = mode_info.red_field_pos; | |
311 | params->green_mask_size = mode_info.green_mask_size; | |
312 | params->green_field_pos = mode_info.green_field_pos; | |
313 | params->blue_mask_size = mode_info.blue_mask_size; | |
314 | params->blue_field_pos = mode_info.blue_field_pos; | |
315 | params->reserved_mask_size = mode_info.reserved_mask_size; | |
316 | params->reserved_field_pos = mode_info.reserved_field_pos; | |
14aad807 | 317 | |
3395fe52 VS |
318 | if (gfxlfbvar && (gfxlfbvar[0] == '1' || gfxlfbvar[0] == 'y')) |
319 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE; | |
320 | else | |
321 | { | |
322 | switch (driver_id) | |
323 | { | |
324 | case GRUB_VIDEO_DRIVER_VBE: | |
325 | params->lfb_size >>= 16; | |
326 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_VESA; | |
327 | break; | |
328 | ||
329 | case GRUB_VIDEO_DRIVER_EFI_UGA: | |
330 | case GRUB_VIDEO_DRIVER_EFI_GOP: | |
331 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_EFIFB; | |
332 | break; | |
333 | ||
334 | /* FIXME: check if better id is available. */ | |
335 | case GRUB_VIDEO_DRIVER_SM712: | |
67b1e5c9 | 336 | case GRUB_VIDEO_DRIVER_SIS315PRO: |
3395fe52 VS |
337 | case GRUB_VIDEO_DRIVER_VGA: |
338 | case GRUB_VIDEO_DRIVER_CIRRUS: | |
339 | case GRUB_VIDEO_DRIVER_BOCHS: | |
fe8d4a7b | 340 | case GRUB_VIDEO_DRIVER_RADEON_FULOONG2E: |
45fbd9a2 VS |
341 | case GRUB_VIDEO_DRIVER_IEEE1275: |
342 | case GRUB_VIDEO_DRIVER_COREBOOT: | |
3395fe52 VS |
343 | /* Make gcc happy. */ |
344 | case GRUB_VIDEO_DRIVER_SDL: | |
345 | case GRUB_VIDEO_DRIVER_NONE: | |
346 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE; | |
347 | break; | |
348 | } | |
349 | } | |
61229557 | 350 | |
351 | #ifdef GRUB_MACHINE_PCBIOS | |
352 | /* VESA packed modes may come with zeroed mask sizes, which need | |
353 | to be set here according to DAC Palette width. If we don't, | |
354 | this results in Linux displaying a black screen. */ | |
3395fe52 | 355 | if (driver_id == GRUB_VIDEO_DRIVER_VBE && mode_info.bpp <= 8) |
61229557 | 356 | { |
357 | struct grub_vbe_info_block controller_info; | |
358 | int status; | |
359 | int width = 8; | |
360 | ||
361 | status = grub_vbe_bios_get_controller_info (&controller_info); | |
362 | ||
363 | if (status == GRUB_VBE_STATUS_OK && | |
364 | (controller_info.capabilities & GRUB_VBE_CAPABILITY_DACWIDTH)) | |
365 | status = grub_vbe_bios_set_dac_palette_width (&width); | |
366 | ||
367 | if (status != GRUB_VBE_STATUS_OK) | |
368 | /* 6 is default after mode reset. */ | |
369 | width = 6; | |
370 | ||
371 | params->red_mask_size = params->green_mask_size | |
372 | = params->blue_mask_size = width; | |
373 | params->reserved_mask_size = 0; | |
374 | } | |
375 | #endif | |
376 | ||
c8142599 | 377 | return GRUB_ERR_NONE; |
14aad807 | 378 | } |
379 | ||
d0d4b8a0 CW |
380 | /* Context for grub_linux_boot. */ |
381 | struct grub_linux_boot_ctx | |
382 | { | |
383 | grub_addr_t real_mode_target; | |
384 | grub_size_t real_size; | |
385 | struct linux_kernel_params *params; | |
386 | int e820_num; | |
387 | }; | |
388 | ||
389 | /* Helper for grub_linux_boot. */ | |
390 | static int | |
391 | grub_linux_boot_mmap_find (grub_uint64_t addr, grub_uint64_t size, | |
392 | grub_memory_type_t type, void *data) | |
393 | { | |
394 | struct grub_linux_boot_ctx *ctx = data; | |
395 | ||
396 | /* We must put real mode code in the traditional space. */ | |
397 | if (type != GRUB_MEMORY_AVAILABLE || addr > 0x90000) | |
398 | return 0; | |
399 | ||
400 | if (addr + size < 0x10000) | |
401 | return 0; | |
402 | ||
403 | if (addr < 0x10000) | |
404 | { | |
405 | size += addr - 0x10000; | |
406 | addr = 0x10000; | |
407 | } | |
408 | ||
409 | if (addr + size > 0x90000) | |
410 | size = 0x90000 - addr; | |
411 | ||
412 | if (ctx->real_size + efi_mmap_size > size) | |
413 | return 0; | |
414 | ||
415 | grub_dprintf ("linux", "addr = %lx, size = %x, need_size = %x\n", | |
416 | (unsigned long) addr, | |
417 | (unsigned) size, | |
418 | (unsigned) (ctx->real_size + efi_mmap_size)); | |
419 | ctx->real_mode_target = ((addr + size) - (ctx->real_size + efi_mmap_size)); | |
420 | return 1; | |
421 | } | |
422 | ||
423 | static int | |
424 | grub_linux_boot_mmap_fill (grub_uint64_t addr, grub_uint64_t size, | |
425 | grub_memory_type_t type, void *data) | |
426 | { | |
427 | struct grub_linux_boot_ctx *ctx = data; | |
428 | ||
429 | grub_uint32_t e820_type; | |
430 | switch (type) | |
431 | { | |
432 | case GRUB_MEMORY_AVAILABLE: | |
433 | e820_type = GRUB_E820_RAM; | |
434 | break; | |
435 | ||
436 | case GRUB_MEMORY_ACPI: | |
437 | e820_type = GRUB_E820_ACPI; | |
438 | break; | |
439 | ||
440 | case GRUB_MEMORY_NVS: | |
441 | e820_type = GRUB_E820_NVS; | |
442 | break; | |
443 | ||
444 | case GRUB_MEMORY_BADRAM: | |
445 | e820_type = GRUB_E820_BADRAM; | |
446 | break; | |
447 | ||
448 | default: | |
449 | e820_type = GRUB_E820_RESERVED; | |
450 | } | |
451 | if (grub_e820_add_region (ctx->params->e820_map, &ctx->e820_num, | |
452 | addr, size, e820_type)) | |
453 | return 1; | |
454 | ||
455 | return 0; | |
456 | } | |
457 | ||
c9baafe7 | 458 | static grub_err_t |
a9368fd3 | 459 | grub_linux_boot (void) |
c9baafe7 | 460 | { |
ad760f81 | 461 | grub_err_t err = 0; |
d35d0d37 VS |
462 | const char *modevar; |
463 | char *tmp; | |
55b40bc6 | 464 | struct grub_relocator32_state state; |
a4e5ca80 | 465 | void *real_mode_mem; |
d0d4b8a0 CW |
466 | struct grub_linux_boot_ctx ctx = { |
467 | .real_mode_target = 0 | |
468 | }; | |
469 | grub_size_t mmap_size; | |
a4e5ca80 VS |
470 | grub_size_t cl_offset; |
471 | ||
67caf9eb VS |
472 | #ifdef GRUB_MACHINE_IEEE1275 |
473 | { | |
474 | const char *bootpath; | |
475 | grub_ssize_t len; | |
476 | ||
477 | bootpath = grub_env_get ("root"); | |
478 | if (bootpath) | |
479 | grub_ieee1275_set_property (grub_ieee1275_chosen, | |
480 | "bootpath", bootpath, | |
481 | grub_strlen (bootpath) + 1, | |
482 | &len); | |
483 | linux_params.ofw_signature = GRUB_LINUX_OFW_SIGNATURE; | |
484 | linux_params.ofw_num_items = 1; | |
485 | linux_params.ofw_cif_handler = (grub_uint32_t) grub_ieee1275_entry_fn; | |
486 | linux_params.ofw_idt = 0; | |
487 | } | |
488 | #endif | |
489 | ||
490 | modevar = grub_env_get ("gfxpayload"); | |
491 | ||
492 | /* Now all graphical modes are acceptable. | |
493 | May change in future if we have modes without framebuffer. */ | |
494 | if (modevar && *modevar != 0) | |
495 | { | |
496 | tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar); | |
497 | if (! tmp) | |
498 | return grub_errno; | |
499 | #if ACCEPTS_PURE_TEXT | |
500 | err = grub_video_set_mode (tmp, 0, 0); | |
501 | #else | |
502 | err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0); | |
503 | #endif | |
504 | grub_free (tmp); | |
505 | } | |
506 | else | |
507 | { | |
508 | #if ACCEPTS_PURE_TEXT | |
509 | err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0, 0); | |
510 | #else | |
511 | err = grub_video_set_mode (DEFAULT_VIDEO_MODE, | |
512 | GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0); | |
513 | #endif | |
514 | } | |
515 | ||
516 | if (err) | |
517 | { | |
518 | grub_print_error (); | |
519 | grub_puts_ (N_("Booting in blind mode")); | |
520 | grub_errno = GRUB_ERR_NONE; | |
521 | } | |
522 | ||
523 | if (grub_linux_setup_video (&linux_params)) | |
524 | { | |
525 | #if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU) | |
526 | linux_params.have_vga = GRUB_VIDEO_LINUX_TYPE_TEXT; | |
527 | linux_params.video_mode = 0x3; | |
528 | #else | |
529 | linux_params.have_vga = 0; | |
530 | linux_params.video_mode = 0; | |
531 | linux_params.video_width = 0; | |
532 | linux_params.video_height = 0; | |
533 | #endif | |
534 | } | |
535 | ||
536 | ||
537 | #ifndef GRUB_MACHINE_IEEE1275 | |
538 | if (linux_params.have_vga == GRUB_VIDEO_LINUX_TYPE_TEXT) | |
539 | #endif | |
540 | { | |
541 | grub_term_output_t term; | |
542 | int found = 0; | |
543 | FOR_ACTIVE_TERM_OUTPUTS(term) | |
544 | if (grub_strcmp (term->name, "vga_text") == 0 | |
545 | || grub_strcmp (term->name, "console") == 0 | |
546 | || grub_strcmp (term->name, "ofconsole") == 0) | |
547 | { | |
548 | grub_uint16_t pos = grub_term_getxy (term); | |
549 | linux_params.video_cursor_x = pos >> 8; | |
550 | linux_params.video_cursor_y = pos & 0xff; | |
551 | linux_params.video_width = grub_term_width (term); | |
552 | linux_params.video_height = grub_term_height (term); | |
553 | found = 1; | |
554 | break; | |
555 | } | |
556 | if (!found) | |
557 | { | |
558 | linux_params.video_cursor_x = 0; | |
559 | linux_params.video_cursor_y = 0; | |
560 | linux_params.video_width = 80; | |
561 | linux_params.video_height = 25; | |
562 | } | |
563 | } | |
564 | ||
a4e5ca80 VS |
565 | mmap_size = find_mmap_size (); |
566 | /* Make sure that each size is aligned to a page boundary. */ | |
67caf9eb VS |
567 | cl_offset = ALIGN_UP (mmap_size + sizeof (linux_params), 4096); |
568 | if (cl_offset < ((grub_size_t) linux_params.setup_sects << GRUB_DISK_SECTOR_BITS)) | |
569 | cl_offset = ALIGN_UP ((grub_size_t) (linux_params.setup_sects | |
f19cb95e | 570 | << GRUB_DISK_SECTOR_BITS), 4096); |
d0d4b8a0 | 571 | ctx.real_size = ALIGN_UP (cl_offset + maximal_cmdline_size, 4096); |
a4e5ca80 VS |
572 | |
573 | #ifdef GRUB_MACHINE_EFI | |
574 | efi_mmap_size = find_efi_mmap_size (); | |
575 | if (efi_mmap_size == 0) | |
576 | return grub_errno; | |
577 | #endif | |
578 | ||
579 | grub_dprintf ("linux", "real_size = %x, mmap_size = %x\n", | |
d0d4b8a0 | 580 | (unsigned) ctx.real_size, (unsigned) mmap_size); |
a4e5ca80 | 581 | |
a4e5ca80 | 582 | #ifdef GRUB_MACHINE_EFI |
d0d4b8a0 CW |
583 | grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 1); |
584 | if (! ctx.real_mode_target) | |
585 | grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 0); | |
a4e5ca80 | 586 | #else |
d0d4b8a0 | 587 | grub_mmap_iterate (grub_linux_boot_mmap_find, &ctx); |
a4e5ca80 | 588 | #endif |
f19cb95e | 589 | grub_dprintf ("linux", "real_mode_target = %lx, real_size = %x, efi_mmap_size = %x\n", |
d0d4b8a0 CW |
590 | (unsigned long) ctx.real_mode_target, |
591 | (unsigned) ctx.real_size, | |
f19cb95e VS |
592 | (unsigned) efi_mmap_size); |
593 | ||
d0d4b8a0 | 594 | if (! ctx.real_mode_target) |
a4e5ca80 VS |
595 | return grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate real mode pages"); |
596 | ||
597 | { | |
598 | grub_relocator_chunk_t ch; | |
599 | err = grub_relocator_alloc_chunk_addr (relocator, &ch, | |
d0d4b8a0 CW |
600 | ctx.real_mode_target, |
601 | (ctx.real_size + efi_mmap_size)); | |
a4e5ca80 VS |
602 | if (err) |
603 | return err; | |
604 | real_mode_mem = get_virtual_current_address (ch); | |
605 | } | |
d0d4b8a0 | 606 | efi_mmap_buf = (grub_uint8_t *) real_mode_mem + ctx.real_size; |
a4e5ca80 | 607 | |
f19cb95e VS |
608 | grub_dprintf ("linux", "real_mode_mem = %lx\n", |
609 | (unsigned long) real_mode_mem); | |
67caf9eb | 610 | |
d0d4b8a0 | 611 | ctx.params = real_mode_mem; |
c9baafe7 | 612 | |
d0d4b8a0 CW |
613 | *ctx.params = linux_params; |
614 | ctx.params->cmd_line_ptr = ctx.real_mode_target + cl_offset; | |
615 | grub_memcpy ((char *) ctx.params + cl_offset, linux_cmdline, | |
a4e5ca80 VS |
616 | maximal_cmdline_size); |
617 | ||
55b40bc6 | 618 | grub_dprintf ("linux", "code32_start = %x\n", |
d0d4b8a0 | 619 | (unsigned) ctx.params->code32_start); |
c9baafe7 | 620 | |
d0d4b8a0 CW |
621 | ctx.e820_num = 0; |
622 | if (grub_mmap_iterate (grub_linux_boot_mmap_fill, &ctx)) | |
119d11c8 | 623 | return grub_errno; |
d0d4b8a0 | 624 | ctx.params->mmap_size = ctx.e820_num; |
c9baafe7 | 625 | |
c8142599 VS |
626 | #ifdef GRUB_MACHINE_EFI |
627 | { | |
91b58e6b | 628 | grub_efi_uintn_t efi_desc_size; |
3c62402d | 629 | grub_size_t efi_mmap_target; |
c8142599 | 630 | grub_efi_uint32_t efi_desc_version; |
91b58e6b VS |
631 | err = grub_efi_finish_boot_services (&efi_mmap_size, efi_mmap_buf, NULL, |
632 | &efi_desc_size, &efi_desc_version); | |
633 | if (err) | |
634 | return err; | |
c8142599 | 635 | |
c8142599 | 636 | /* Note that no boot services are available from here. */ |
d0d4b8a0 | 637 | efi_mmap_target = ctx.real_mode_target |
3c62402d | 638 | + ((grub_uint8_t *) efi_mmap_buf - (grub_uint8_t *) real_mode_mem); |
c8142599 | 639 | /* Pass EFI parameters. */ |
d0d4b8a0 | 640 | if (grub_le_to_cpu16 (ctx.params->version) >= 0x0208) |
bcc75fb3 | 641 | { |
d0d4b8a0 CW |
642 | ctx.params->v0208.efi_mem_desc_size = efi_desc_size; |
643 | ctx.params->v0208.efi_mem_desc_version = efi_desc_version; | |
644 | ctx.params->v0208.efi_mmap = efi_mmap_target; | |
645 | ctx.params->v0208.efi_mmap_size = efi_mmap_size; | |
bcc75fb3 PJ |
646 | |
647 | #ifdef __x86_64__ | |
d0d4b8a0 | 648 | ctx.params->v0208.efi_mmap_hi = (efi_mmap_target >> 32); |
bcc75fb3 PJ |
649 | #endif |
650 | } | |
d0d4b8a0 | 651 | else if (grub_le_to_cpu16 (ctx.params->version) >= 0x0206) |
c8142599 | 652 | { |
d0d4b8a0 CW |
653 | ctx.params->v0206.efi_mem_desc_size = efi_desc_size; |
654 | ctx.params->v0206.efi_mem_desc_version = efi_desc_version; | |
655 | ctx.params->v0206.efi_mmap = efi_mmap_target; | |
656 | ctx.params->v0206.efi_mmap_size = efi_mmap_size; | |
c8142599 | 657 | } |
d0d4b8a0 | 658 | else if (grub_le_to_cpu16 (ctx.params->version) >= 0x0204) |
c8142599 | 659 | { |
d0d4b8a0 CW |
660 | ctx.params->v0204.efi_mem_desc_size = efi_desc_size; |
661 | ctx.params->v0204.efi_mem_desc_version = efi_desc_version; | |
662 | ctx.params->v0204.efi_mmap = efi_mmap_target; | |
663 | ctx.params->v0204.efi_mmap_size = efi_mmap_size; | |
c8142599 VS |
664 | } |
665 | } | |
666 | #endif | |
667 | ||
55b40bc6 VS |
668 | /* FIXME. */ |
669 | /* asm volatile ("lidt %0" : : "m" (idt_desc)); */ | |
9056cbf3 | 670 | state.ebp = state.edi = state.ebx = 0; |
d0d4b8a0 CW |
671 | state.esi = ctx.real_mode_target; |
672 | state.esp = ctx.real_mode_target; | |
673 | state.eip = ctx.params->code32_start; | |
9be4c45d | 674 | return grub_relocator32_boot (relocator, state, 0); |
c9baafe7 | 675 | } |
676 | ||
677 | static grub_err_t | |
678 | grub_linux_unload (void) | |
679 | { | |
c9baafe7 | 680 | grub_dl_unref (my_mod); |
681 | loaded = 0; | |
a4e5ca80 VS |
682 | grub_free (linux_cmdline); |
683 | linux_cmdline = 0; | |
c9baafe7 | 684 | return GRUB_ERR_NONE; |
685 | } | |
686 | ||
b1b797cb | 687 | static grub_err_t |
688 | grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), | |
689 | int argc, char *argv[]) | |
c9baafe7 | 690 | { |
691 | grub_file_t file = 0; | |
692 | struct linux_kernel_header lh; | |
c9baafe7 | 693 | grub_uint8_t setup_sects; |
7c8d0ce7 | 694 | grub_size_t real_size, prot_size, prot_file_size; |
c9baafe7 | 695 | grub_ssize_t len; |
696 | int i; | |
9be4c45d VS |
697 | grub_size_t align, min_align; |
698 | int relocatable; | |
39525c22 | 699 | grub_uint64_t preferred_address = GRUB_LINUX_BZIMAGE_ADDR; |
c9baafe7 | 700 | |
701 | grub_dl_ref (my_mod); | |
b39f9d20 | 702 | |
c9baafe7 | 703 | if (argc == 0) |
704 | { | |
9c4b5c13 | 705 | grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); |
c9baafe7 | 706 | goto fail; |
707 | } | |
708 | ||
709 | file = grub_file_open (argv[0]); | |
710 | if (! file) | |
87a4623b | 711 | goto fail; |
c9baafe7 | 712 | |
5c5215d5 | 713 | if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh)) |
c9baafe7 | 714 | { |
7a45a539 | 715 | if (!grub_errno) |
9c4b5c13 | 716 | grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), |
7a45a539 | 717 | argv[0]); |
c9baafe7 | 718 | goto fail; |
719 | } | |
720 | ||
721 | if (lh.boot_flag != grub_cpu_to_le16 (0xaa55)) | |
722 | { | |
723 | grub_error (GRUB_ERR_BAD_OS, "invalid magic number"); | |
724 | goto fail; | |
725 | } | |
726 | ||
727 | if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS) | |
728 | { | |
729 | grub_error (GRUB_ERR_BAD_OS, "too many setup sectors"); | |
730 | goto fail; | |
731 | } | |
732 | ||
9bab65c4 VS |
733 | /* FIXME: 2.03 is not always good enough (Linux 2.4 can be 2.03 and |
734 | still not support 32-bit boot. */ | |
735 | if (lh.header != grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE) | |
736 | || grub_le_to_cpu16 (lh.version) < 0x0203) | |
c9baafe7 | 737 | { |
9bab65c4 | 738 | grub_error (GRUB_ERR_BAD_OS, "version too old for 32-bit boot" |
92f33540 | 739 | #ifdef GRUB_MACHINE_PCBIOS |
740 | " (try with `linux16')" | |
741 | #endif | |
742 | ); | |
c9baafe7 | 743 | goto fail; |
744 | } | |
745 | ||
9bab65c4 | 746 | if (! (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL)) |
c9baafe7 | 747 | { |
9bab65c4 | 748 | grub_error (GRUB_ERR_BAD_OS, "zImage doesn't support 32-bit boot" |
92f33540 | 749 | #ifdef GRUB_MACHINE_PCBIOS |
750 | " (try with `linux16')" | |
751 | #endif | |
752 | ); | |
c9baafe7 | 753 | goto fail; |
754 | } | |
755 | ||
a06eb03a VS |
756 | if (grub_le_to_cpu16 (lh.version) >= 0x0206) |
757 | maximal_cmdline_size = grub_le_to_cpu32 (lh.cmdline_size) + 1; | |
758 | else | |
759 | maximal_cmdline_size = 256; | |
760 | ||
761 | if (maximal_cmdline_size < 128) | |
762 | maximal_cmdline_size = 128; | |
763 | ||
c9baafe7 | 764 | setup_sects = lh.setup_sects; |
b39f9d20 | 765 | |
c9baafe7 | 766 | /* If SETUP_SECTS is not set, set it to the default (4). */ |
767 | if (! setup_sects) | |
768 | setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS; | |
769 | ||
770 | real_size = setup_sects << GRUB_DISK_SECTOR_BITS; | |
7c8d0ce7 | 771 | prot_file_size = grub_file_size (file) - real_size - GRUB_DISK_SECTOR_SIZE; |
b39f9d20 | 772 | |
9be4c45d VS |
773 | if (grub_le_to_cpu16 (lh.version) >= 0x205 |
774 | && lh.kernel_alignment != 0 | |
775 | && ((lh.kernel_alignment - 1) & lh.kernel_alignment) == 0) | |
776 | { | |
777 | for (align = 0; align < 32; align++) | |
778 | if (grub_le_to_cpu32 (lh.kernel_alignment) & (1 << align)) | |
779 | break; | |
780 | relocatable = grub_le_to_cpu32 (lh.relocatable); | |
781 | } | |
782 | else | |
783 | { | |
784 | align = 0; | |
785 | relocatable = 0; | |
786 | } | |
787 | ||
788 | if (grub_le_to_cpu16 (lh.version) >= 0x020a) | |
789 | { | |
790 | min_align = lh.min_alignment; | |
791 | prot_size = grub_le_to_cpu32 (lh.init_size); | |
807fb77c | 792 | prot_init_space = page_align (prot_size); |
2282da4a | 793 | if (relocatable) |
39525c22 | 794 | preferred_address = grub_le_to_cpu64 (lh.pref_address); |
2282da4a | 795 | else |
39525c22 | 796 | preferred_address = GRUB_LINUX_BZIMAGE_ADDR; |
9be4c45d VS |
797 | } |
798 | else | |
799 | { | |
807fb77c | 800 | min_align = align; |
7c8d0ce7 | 801 | prot_size = prot_file_size; |
39525c22 | 802 | preferred_address = GRUB_LINUX_BZIMAGE_ADDR; |
807fb77c VS |
803 | /* Usually, the compression ratio is about 50%. */ |
804 | prot_init_space = page_align (prot_size) * 3; | |
9be4c45d VS |
805 | } |
806 | ||
807 | if (allocate_pages (prot_size, &align, | |
808 | min_align, relocatable, | |
39525c22 | 809 | preferred_address)) |
c9baafe7 | 810 | goto fail; |
b39f9d20 | 811 | |
cc2fa5ec VS |
812 | grub_memset (&linux_params, 0, sizeof (linux_params)); |
813 | grub_memcpy (&linux_params.setup_sects, &lh.setup_sects, sizeof (lh) - 0x1F1); | |
c9baafe7 | 814 | |
cc2fa5ec VS |
815 | linux_params.code32_start = prot_mode_target + lh.code32_start - GRUB_LINUX_BZIMAGE_ADDR; |
816 | linux_params.kernel_alignment = (1 << align); | |
817 | linux_params.ps_mouse = linux_params.padding10 = 0; | |
c9baafe7 | 818 | |
cc2fa5ec VS |
819 | len = sizeof (linux_params) - sizeof (lh); |
820 | if (grub_file_read (file, (char *) &linux_params + sizeof (lh), len) != len) | |
c9baafe7 | 821 | { |
7a45a539 | 822 | if (!grub_errno) |
9c4b5c13 | 823 | grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), |
7a45a539 | 824 | argv[0]); |
c9baafe7 | 825 | goto fail; |
826 | } | |
827 | ||
cc2fa5ec | 828 | linux_params.type_of_loader = GRUB_LINUX_BOOT_LOADER_TYPE; |
c9baafe7 | 829 | |
b09db61d | 830 | /* These two are used (instead of cmd_line_ptr) by older versions of Linux, |
831 | and otherwise ignored. */ | |
cc2fa5ec VS |
832 | linux_params.cl_magic = GRUB_LINUX_CL_MAGIC; |
833 | linux_params.cl_offset = 0x1000; | |
b09db61d | 834 | |
cc2fa5ec VS |
835 | linux_params.ramdisk_image = 0; |
836 | linux_params.ramdisk_size = 0; | |
c9baafe7 | 837 | |
cc2fa5ec VS |
838 | linux_params.heap_end_ptr = GRUB_LINUX_HEAP_END_OFFSET; |
839 | linux_params.loadflags |= GRUB_LINUX_FLAG_CAN_USE_HEAP; | |
c9baafe7 | 840 | |
841 | /* These are not needed to be precise, because Linux uses these values | |
842 | only to raise an error when the decompression code cannot find good | |
843 | space. */ | |
cc2fa5ec VS |
844 | linux_params.ext_mem = ((32 * 0x100000) >> 10); |
845 | linux_params.alt_mem = ((32 * 0x100000) >> 10); | |
b39f9d20 | 846 | |
b09db61d | 847 | /* Ignored by Linux. */ |
cc2fa5ec | 848 | linux_params.video_page = 0; |
b09db61d | 849 | |
b09db61d | 850 | /* Only used when `video_mode == 0x7', otherwise ignored. */ |
cc2fa5ec | 851 | linux_params.video_ega_bx = 0; |
b09db61d | 852 | |
cc2fa5ec | 853 | linux_params.font_size = 16; /* XXX */ |
c9baafe7 | 854 | |
c8142599 | 855 | #ifdef GRUB_MACHINE_EFI |
bcc75fb3 | 856 | #ifdef __x86_64__ |
cc2fa5ec | 857 | if (grub_le_to_cpu16 (linux_params.version) < 0x0208 && |
bcc75fb3 PJ |
858 | ((grub_addr_t) grub_efi_system_table >> 32) != 0) |
859 | return grub_error(GRUB_ERR_BAD_OS, | |
860 | "kernel does not support 64-bit addressing"); | |
861 | #endif | |
862 | ||
cc2fa5ec | 863 | if (grub_le_to_cpu16 (linux_params.version) >= 0x0208) |
c8142599 | 864 | { |
cc2fa5ec VS |
865 | linux_params.v0208.efi_signature = GRUB_LINUX_EFI_SIGNATURE; |
866 | linux_params.v0208.efi_system_table = (grub_uint32_t) (unsigned long) grub_efi_system_table; | |
c8142599 | 867 | #ifdef __x86_64__ |
cc2fa5ec | 868 | linux_params.v0208.efi_system_table_hi = (grub_uint32_t) ((grub_uint64_t) grub_efi_system_table >> 32); |
c8142599 VS |
869 | #endif |
870 | } | |
cc2fa5ec | 871 | else if (grub_le_to_cpu16 (linux_params.version) >= 0x0206) |
bcc75fb3 | 872 | { |
cc2fa5ec VS |
873 | linux_params.v0206.efi_signature = GRUB_LINUX_EFI_SIGNATURE; |
874 | linux_params.v0206.efi_system_table = (grub_uint32_t) (unsigned long) grub_efi_system_table; | |
bcc75fb3 | 875 | } |
cc2fa5ec | 876 | else if (grub_le_to_cpu16 (linux_params.version) >= 0x0204) |
c8142599 | 877 | { |
cc2fa5ec VS |
878 | linux_params.v0204.efi_signature = GRUB_LINUX_EFI_SIGNATURE_0204; |
879 | linux_params.v0204.efi_system_table = (grub_uint32_t) (unsigned long) grub_efi_system_table; | |
c8142599 VS |
880 | } |
881 | #endif | |
882 | ||
c9baafe7 | 883 | /* The other parameters are filled when booting. */ |
884 | ||
885 | grub_file_seek (file, real_size + GRUB_DISK_SECTOR_SIZE); | |
886 | ||
1a064917 RM |
887 | grub_dprintf ("linux", "bzImage, setup=0x%x, size=0x%x\n", |
888 | (unsigned) real_size, (unsigned) prot_size); | |
c9baafe7 | 889 | |
1007d1f5 | 890 | /* Look for memory size and video mode specified on the command line. */ |
c9baafe7 | 891 | linux_mem_size = 0; |
c9baafe7 | 892 | for (i = 1; i < argc; i++) |
b01f0548 | 893 | #ifdef GRUB_MACHINE_PCBIOS |
9c323f09 | 894 | if (grub_memcmp (argv[i], "vga=", 4) == 0) |
895 | { | |
896 | /* Video mode selection support. */ | |
897 | char *val = argv[i] + 4; | |
3eb5ed4e | 898 | unsigned vid_mode = GRUB_LINUX_VID_MODE_NORMAL; |
e31bb619 | 899 | struct grub_vesa_mode_table_entry *linux_mode; |
3eb5ed4e | 900 | grub_err_t err; |
901 | char *buf; | |
9c323f09 | 902 | |
2b36fbf4 VS |
903 | grub_dl_load ("vbe"); |
904 | ||
9c323f09 | 905 | if (grub_strcmp (val, "normal") == 0) |
906 | vid_mode = GRUB_LINUX_VID_MODE_NORMAL; | |
907 | else if (grub_strcmp (val, "ext") == 0) | |
908 | vid_mode = GRUB_LINUX_VID_MODE_EXTENDED; | |
1007d1f5 | 909 | else if (grub_strcmp (val, "ask") == 0) |
cba416eb | 910 | { |
10f0117b | 911 | grub_puts_ (N_("Legacy `ask' parameter no longer supported.")); |
6c67de15 | 912 | |
913 | /* We usually would never do this in a loader, but "vga=ask" means user | |
914 | requested interaction, so it can't hurt to request keyboard input. */ | |
915 | grub_wait_after_message (); | |
916 | ||
cba416eb | 917 | goto fail; |
918 | } | |
9c323f09 | 919 | else |
920 | vid_mode = (grub_uint16_t) grub_strtoul (val, 0, 0); | |
921 | ||
112972a9 | 922 | switch (vid_mode) |
923 | { | |
924 | case 0: | |
3eb5ed4e | 925 | case GRUB_LINUX_VID_MODE_NORMAL: |
926 | grub_env_set ("gfxpayload", "text"); | |
10f0117b | 927 | grub_printf_ (N_("%s is deprecated. " |
67093bc0 VS |
928 | "Use set gfxpayload=%s before " |
929 | "linux command instead.\n"), "text", | |
930 | argv[i]); | |
112972a9 | 931 | break; |
3eb5ed4e | 932 | |
112972a9 | 933 | case 1: |
3eb5ed4e | 934 | case GRUB_LINUX_VID_MODE_EXTENDED: |
935 | /* FIXME: support 80x50 text. */ | |
936 | grub_env_set ("gfxpayload", "text"); | |
10f0117b | 937 | grub_printf_ (N_("%s is deprecated. " |
67093bc0 VS |
938 | "Use set gfxpayload=%s before " |
939 | "linux command instead.\n"), "text", | |
940 | argv[i]); | |
112972a9 | 941 | break; |
942 | default: | |
943 | /* Ignore invalid values. */ | |
e31bb619 VS |
944 | if (vid_mode < GRUB_VESA_MODE_TABLE_START || |
945 | vid_mode > GRUB_VESA_MODE_TABLE_END) | |
3eb5ed4e | 946 | { |
947 | grub_env_set ("gfxpayload", "text"); | |
6e69da9c VS |
948 | /* TRANSLATORS: "x" has to be entered in, like an identifier, |
949 | so please don't use better Unicode codepoints. */ | |
8822a8a0 | 950 | grub_printf_ (N_("%s is deprecated. VGA mode %d isn't recognized. " |
10f0117b VS |
951 | "Use set gfxpayload=WIDTHxHEIGHT[xDEPTH] " |
952 | "before linux command instead.\n"), | |
b39f9d20 | 953 | argv[i], vid_mode); |
3eb5ed4e | 954 | break; |
955 | } | |
956 | ||
e31bb619 VS |
957 | linux_mode = &grub_vesa_mode_table[vid_mode |
958 | - GRUB_VESA_MODE_TABLE_START]; | |
b39f9d20 | 959 | |
61eb45ee | 960 | buf = grub_xasprintf ("%ux%ux%u,%ux%u", |
e31bb619 | 961 | linux_mode->width, linux_mode->height, |
8b442f3f | 962 | linux_mode->depth, |
e31bb619 | 963 | linux_mode->width, linux_mode->height); |
8b442f3f VS |
964 | if (! buf) |
965 | goto fail; | |
966 | ||
10f0117b VS |
967 | grub_printf_ (N_("%s is deprecated. " |
968 | "Use set gfxpayload=%s before " | |
969 | "linux command instead.\n"), | |
b39f9d20 | 970 | argv[i], buf); |
3eb5ed4e | 971 | err = grub_env_set ("gfxpayload", buf); |
972 | grub_free (buf); | |
973 | if (err) | |
974 | goto fail; | |
112972a9 | 975 | } |
9c323f09 | 976 | } |
7c1d00cd | 977 | else |
b01f0548 | 978 | #endif /* GRUB_MACHINE_PCBIOS */ |
7c1d00cd | 979 | if (grub_memcmp (argv[i], "mem=", 4) == 0) |
c9baafe7 | 980 | { |
981 | char *val = argv[i] + 4; | |
b39f9d20 | 982 | |
c9baafe7 | 983 | linux_mem_size = grub_strtoul (val, &val, 0); |
b39f9d20 | 984 | |
c9baafe7 | 985 | if (grub_errno) |
986 | { | |
987 | grub_errno = GRUB_ERR_NONE; | |
988 | linux_mem_size = 0; | |
989 | } | |
990 | else | |
991 | { | |
992 | int shift = 0; | |
b39f9d20 | 993 | |
c9baafe7 | 994 | switch (grub_tolower (val[0])) |
995 | { | |
996 | case 'g': | |
997 | shift += 10; | |
998 | case 'm': | |
999 | shift += 10; | |
1000 | case 'k': | |
1001 | shift += 10; | |
1002 | default: | |
1003 | break; | |
1004 | } | |
1005 | ||
1006 | /* Check an overflow. */ | |
1007 | if (linux_mem_size > (~0UL >> shift)) | |
1008 | linux_mem_size = 0; | |
1009 | else | |
1010 | linux_mem_size <<= shift; | |
1011 | } | |
1012 | } | |
28333ad0 | 1013 | else if (grub_memcmp (argv[i], "quiet", sizeof ("quiet") - 1) == 0) |
1014 | { | |
cc2fa5ec | 1015 | linux_params.loadflags |= GRUB_LINUX_FLAG_QUIET; |
28333ad0 | 1016 | } |
1017 | ||
25953e10 | 1018 | /* Create kernel command line. */ |
a4e5ca80 VS |
1019 | linux_cmdline = grub_zalloc (maximal_cmdline_size + 1); |
1020 | if (!linux_cmdline) | |
1021 | goto fail; | |
1022 | grub_memcpy (linux_cmdline, LINUX_IMAGE, sizeof (LINUX_IMAGE)); | |
25953e10 | 1023 | grub_create_loader_cmdline (argc, argv, |
a4e5ca80 | 1024 | linux_cmdline |
25953e10 | 1025 | + sizeof (LINUX_IMAGE) - 1, |
05caa461 | 1026 | maximal_cmdline_size |
25953e10 | 1027 | - (sizeof (LINUX_IMAGE) - 1)); |
c9baafe7 | 1028 | |
7c8d0ce7 | 1029 | len = prot_file_size; |
7a45a539 | 1030 | if (grub_file_read (file, prot_mode_mem, len) != len && !grub_errno) |
9c4b5c13 | 1031 | grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), |
7a45a539 | 1032 | argv[0]); |
c9baafe7 | 1033 | |
1034 | if (grub_errno == GRUB_ERR_NONE) | |
1035 | { | |
a9368fd3 | 1036 | grub_loader_set (grub_linux_boot, grub_linux_unload, |
14aad807 | 1037 | 0 /* set noreturn=0 in order to avoid grub_console_fini() */); |
c9baafe7 | 1038 | loaded = 1; |
1039 | } | |
1040 | ||
1041 | fail: | |
b39f9d20 | 1042 | |
c9baafe7 | 1043 | if (file) |
1044 | grub_file_close (file); | |
1045 | ||
1046 | if (grub_errno != GRUB_ERR_NONE) | |
1047 | { | |
1048 | grub_dl_unref (my_mod); | |
1049 | loaded = 0; | |
1050 | } | |
b1b797cb | 1051 | |
1052 | return grub_errno; | |
c9baafe7 | 1053 | } |
1054 | ||
b1b797cb | 1055 | static grub_err_t |
1056 | grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), | |
1057 | int argc, char *argv[]) | |
c9baafe7 | 1058 | { |
3c76ea0c | 1059 | grub_size_t size = 0; |
c9baafe7 | 1060 | grub_addr_t addr_min, addr_max; |
1061 | grub_addr_t addr; | |
55b40bc6 | 1062 | grub_err_t err; |
92750e4c | 1063 | struct grub_linux_initrd_context initrd_ctx; |
b39f9d20 | 1064 | |
c9baafe7 | 1065 | if (argc == 0) |
1066 | { | |
9c4b5c13 | 1067 | grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); |
c9baafe7 | 1068 | goto fail; |
1069 | } | |
b39f9d20 | 1070 | |
c9baafe7 | 1071 | if (! loaded) |
1072 | { | |
9c4b5c13 | 1073 | grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first")); |
c9baafe7 | 1074 | goto fail; |
1075 | } | |
1076 | ||
92750e4c | 1077 | if (grub_initrd_init (argc, argv, &initrd_ctx)) |
c9baafe7 | 1078 | goto fail; |
1079 | ||
92750e4c | 1080 | size = grub_get_initrd_size (&initrd_ctx); |
3c76ea0c | 1081 | |
c9baafe7 | 1082 | initrd_pages = (page_align (size) >> 12); |
1083 | ||
92907110 | 1084 | /* Get the highest address available for the initrd. */ |
8645f72c | 1085 | if (grub_le_to_cpu16 (linux_params.version) >= 0x0203) |
92907110 | 1086 | { |
8645f72c | 1087 | addr_max = grub_cpu_to_le32 (linux_params.initrd_addr_max); |
92907110 | 1088 | |
1089 | /* XXX in reality, Linux specifies a bogus value, so | |
1090 | it is necessary to make sure that ADDR_MAX does not exceed | |
1091 | 0x3fffffff. */ | |
1092 | if (addr_max > GRUB_LINUX_INITRD_MAX_ADDRESS) | |
1093 | addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS; | |
1094 | } | |
1095 | else | |
1096 | addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS; | |
b39f9d20 | 1097 | |
c9baafe7 | 1098 | if (linux_mem_size != 0 && linux_mem_size < addr_max) |
1099 | addr_max = linux_mem_size; | |
b39f9d20 | 1100 | |
c9baafe7 | 1101 | /* Linux 2.3.xx has a bug in the memory range check, so avoid |
1102 | the last page. | |
1103 | Linux 2.2.xx has a bug in the memory range check, which is | |
1104 | worse than that of Linux 2.3.xx, so avoid the last 64kb. */ | |
1105 | addr_max -= 0x10000; | |
1106 | ||
6a0debbd | 1107 | addr_min = (grub_addr_t) prot_mode_target + prot_init_space; |
b39f9d20 | 1108 | |
92907110 | 1109 | /* Put the initrd as high as possible, 4KiB aligned. */ |
1110 | addr = (addr_max - size) & ~0xFFF; | |
c9baafe7 | 1111 | |
92907110 | 1112 | if (addr < addr_min) |
c9baafe7 | 1113 | { |
7fd0baee | 1114 | grub_error (GRUB_ERR_OUT_OF_RANGE, "the initrd is too big"); |
c9baafe7 | 1115 | goto fail; |
1116 | } | |
b39f9d20 | 1117 | |
4b2ec20b VS |
1118 | { |
1119 | grub_relocator_chunk_t ch; | |
1120 | err = grub_relocator_alloc_chunk_align (relocator, &ch, | |
1121 | addr_min, addr, size, 0x1000, | |
9be4c45d VS |
1122 | GRUB_RELOCATOR_PREFERENCE_HIGH, |
1123 | 1); | |
4b2ec20b VS |
1124 | if (err) |
1125 | return err; | |
1126 | initrd_mem = get_virtual_current_address (ch); | |
1127 | initrd_mem_target = get_physical_target_address (ch); | |
1128 | } | |
b39f9d20 | 1129 | |
92750e4c VS |
1130 | if (grub_initrd_load (&initrd_ctx, argv, initrd_mem)) |
1131 | goto fail; | |
c9baafe7 | 1132 | |
1a064917 RM |
1133 | grub_dprintf ("linux", "Initrd, addr=0x%x, size=0x%x\n", |
1134 | (unsigned) addr, (unsigned) size); | |
b39f9d20 | 1135 | |
8645f72c VS |
1136 | linux_params.ramdisk_image = initrd_mem_target; |
1137 | linux_params.ramdisk_size = size; | |
1138 | linux_params.root_dev = 0x0100; /* XXX */ | |
b39f9d20 | 1139 | |
c9baafe7 | 1140 | fail: |
92750e4c | 1141 | grub_initrd_close (&initrd_ctx); |
b1b797cb | 1142 | |
1143 | return grub_errno; | |
c9baafe7 | 1144 | } |
1145 | ||
b1b797cb | 1146 | static grub_command_t cmd_linux, cmd_initrd; |
c9baafe7 | 1147 | |
1148 | GRUB_MOD_INIT(linux) | |
1149 | { | |
b1b797cb | 1150 | cmd_linux = grub_register_command ("linux", grub_cmd_linux, |
809bbfeb | 1151 | 0, N_("Load Linux.")); |
b1b797cb | 1152 | cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd, |
809bbfeb | 1153 | 0, N_("Load initrd.")); |
c9baafe7 | 1154 | my_mod = mod; |
1155 | } | |
1156 | ||
1157 | GRUB_MOD_FINI(linux) | |
1158 | { | |
b1b797cb | 1159 | grub_unregister_command (cmd_linux); |
1160 | grub_unregister_command (cmd_initrd); | |
c9baafe7 | 1161 | } |