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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; |
55b40bc6 | 72 | static struct grub_relocator *relocator = NULL; |
c8142599 | 73 | static void *efi_mmap_buf; |
a06eb03a | 74 | static grub_size_t maximal_cmdline_size; |
a4e5ca80 VS |
75 | static struct linux_kernel_params linux_params; |
76 | static char *linux_cmdline; | |
d3fbca98 VS |
77 | #ifdef GRUB_MACHINE_EFI |
78 | static grub_efi_uintn_t efi_mmap_size; | |
79 | #else | |
80 | static const grub_size_t efi_mmap_size = 0; | |
81 | #endif | |
c9baafe7 | 82 | |
55b40bc6 VS |
83 | /* FIXME */ |
84 | #if 0 | |
c9baafe7 | 85 | struct idt_descriptor |
86 | { | |
87 | grub_uint16_t limit; | |
88 | void *base; | |
7e47e27b | 89 | } GRUB_PACKED; |
c9baafe7 | 90 | |
91 | static struct idt_descriptor idt_desc = | |
92 | { | |
93 | 0, | |
94 | 0 | |
95 | }; | |
55b40bc6 | 96 | #endif |
c9baafe7 | 97 | |
98 | static inline grub_size_t | |
99 | page_align (grub_size_t size) | |
100 | { | |
101 | return (size + (1 << 12) - 1) & (~((1 << 12) - 1)); | |
102 | } | |
103 | ||
c8142599 VS |
104 | #ifdef GRUB_MACHINE_EFI |
105 | /* Find the optimal number of pages for the memory map. Is it better to | |
106 | move this code to efi/mm.c? */ | |
107 | static grub_efi_uintn_t | |
108 | find_efi_mmap_size (void) | |
109 | { | |
110 | static grub_efi_uintn_t mmap_size = 0; | |
111 | ||
112 | if (mmap_size != 0) | |
113 | return mmap_size; | |
114 | ||
115 | mmap_size = (1 << 12); | |
116 | while (1) | |
117 | { | |
118 | int ret; | |
119 | grub_efi_memory_descriptor_t *mmap; | |
120 | grub_efi_uintn_t desc_size; | |
35692881 | 121 | grub_efi_uintn_t cur_mmap_size = mmap_size; |
c8142599 | 122 | |
35692881 | 123 | mmap = grub_malloc (cur_mmap_size); |
c8142599 VS |
124 | if (! mmap) |
125 | return 0; | |
126 | ||
35692881 | 127 | ret = grub_efi_get_memory_map (&cur_mmap_size, mmap, 0, &desc_size, 0); |
c8142599 VS |
128 | grub_free (mmap); |
129 | ||
130 | if (ret < 0) | |
119d11c8 VS |
131 | { |
132 | grub_error (GRUB_ERR_IO, "cannot get memory map"); | |
133 | return 0; | |
134 | } | |
c8142599 VS |
135 | else if (ret > 0) |
136 | break; | |
137 | ||
35692881 VS |
138 | if (mmap_size < cur_mmap_size) |
139 | mmap_size = cur_mmap_size; | |
c8142599 VS |
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. */ | |
f923ad22 | 145 | mmap_size += (3 << 12); |
c8142599 | 146 | |
be1a7ce0 CW |
147 | mmap_size = page_align (mmap_size); |
148 | return mmap_size; | |
c8142599 VS |
149 | } |
150 | ||
151 | #endif | |
152 | ||
d0d4b8a0 CW |
153 | /* Helper for find_mmap_size. */ |
154 | static int | |
155 | count_hook (grub_uint64_t addr __attribute__ ((unused)), | |
156 | grub_uint64_t size __attribute__ ((unused)), | |
157 | grub_memory_type_t type __attribute__ ((unused)), void *data) | |
158 | { | |
159 | grub_size_t *count = data; | |
160 | ||
161 | (*count)++; | |
162 | return 0; | |
163 | } | |
164 | ||
c9baafe7 | 165 | /* Find the optimal number of pages for the memory map. */ |
166 | static grub_size_t | |
167 | find_mmap_size (void) | |
168 | { | |
169 | grub_size_t count = 0, mmap_size; | |
170 | ||
d0d4b8a0 | 171 | grub_mmap_iterate (count_hook, &count); |
b39f9d20 | 172 | |
c9baafe7 | 173 | mmap_size = count * sizeof (struct grub_e820_mmap); |
174 | ||
175 | /* Increase the size a bit for safety, because GRUB allocates more on | |
176 | later. */ | |
177 | mmap_size += (1 << 12); | |
b39f9d20 | 178 | |
c9baafe7 | 179 | return page_align (mmap_size); |
180 | } | |
181 | ||
182 | static void | |
183 | free_pages (void) | |
184 | { | |
55b40bc6 VS |
185 | grub_relocator_unload (relocator); |
186 | relocator = NULL; | |
a4e5ca80 VS |
187 | prot_mode_mem = initrd_mem = 0; |
188 | prot_mode_target = initrd_mem_target = 0; | |
c9baafe7 | 189 | } |
190 | ||
191 | /* Allocate pages for the real mode code and the protected mode code | |
192 | for linux as well as a memory map buffer. */ | |
55b40bc6 | 193 | static grub_err_t |
9be4c45d VS |
194 | allocate_pages (grub_size_t prot_size, grub_size_t *align, |
195 | grub_size_t min_align, int relocatable, | |
39525c22 | 196 | grub_uint64_t preferred_address) |
c9baafe7 | 197 | { |
55b40bc6 | 198 | grub_err_t err; |
c9baafe7 | 199 | |
81afc5cc VS |
200 | if (prot_size == 0) |
201 | prot_size = 1; | |
202 | ||
c9baafe7 | 203 | prot_size = page_align (prot_size); |
b39f9d20 | 204 | |
c9baafe7 | 205 | /* Initialize the memory pointers with NULL for convenience. */ |
1007d1f5 | 206 | free_pages (); |
b39f9d20 | 207 | |
55b40bc6 VS |
208 | relocator = grub_relocator_new (); |
209 | if (!relocator) | |
210 | { | |
211 | err = grub_errno; | |
212 | goto fail; | |
213 | } | |
214 | ||
aa9f3bff | 215 | /* FIXME: Should request low memory from the heap when this feature is |
216 | implemented. */ | |
2f2a3442 | 217 | |
4b2ec20b VS |
218 | { |
219 | grub_relocator_chunk_t ch; | |
9be4c45d VS |
220 | if (relocatable) |
221 | { | |
222 | err = grub_relocator_alloc_chunk_align (relocator, &ch, | |
39525c22 CW |
223 | preferred_address, |
224 | preferred_address, | |
9be4c45d VS |
225 | prot_size, 1, |
226 | GRUB_RELOCATOR_PREFERENCE_LOW, | |
227 | 1); | |
1a11761f | 228 | for (; err && *align + 1 > min_align; (*align)--) |
9be4c45d VS |
229 | { |
230 | grub_errno = GRUB_ERR_NONE; | |
231 | err = grub_relocator_alloc_chunk_align (relocator, &ch, | |
2282da4a VS |
232 | 0x1000000, |
233 | 0xffffffff & ~prot_size, | |
9be4c45d VS |
234 | prot_size, 1 << *align, |
235 | GRUB_RELOCATOR_PREFERENCE_LOW, | |
236 | 1); | |
237 | } | |
238 | if (err) | |
239 | goto fail; | |
240 | } | |
241 | else | |
242 | err = grub_relocator_alloc_chunk_addr (relocator, &ch, | |
39525c22 | 243 | preferred_address, |
9be4c45d | 244 | prot_size); |
4b2ec20b VS |
245 | if (err) |
246 | goto fail; | |
247 | prot_mode_mem = get_virtual_current_address (ch); | |
9be4c45d | 248 | prot_mode_target = get_physical_target_address (ch); |
4b2ec20b | 249 | } |
c9baafe7 | 250 | |
24ca71c9 VS |
251 | grub_dprintf ("linux", "prot_mode_mem = %p, prot_mode_target = %lx, prot_size = %x\n", |
252 | prot_mode_mem, (unsigned long) prot_mode_target, | |
a4e5ca80 | 253 | (unsigned) prot_size); |
55b40bc6 | 254 | return GRUB_ERR_NONE; |
c9baafe7 | 255 | |
256 | fail: | |
257 | free_pages (); | |
55b40bc6 | 258 | return err; |
c9baafe7 | 259 | } |
260 | ||
119d11c8 | 261 | static grub_err_t |
c9baafe7 | 262 | grub_e820_add_region (struct grub_e820_mmap *e820_map, int *e820_num, |
263 | grub_uint64_t start, grub_uint64_t size, | |
264 | grub_uint32_t type) | |
265 | { | |
266 | int n = *e820_num; | |
267 | ||
c9baafe7 | 268 | if ((n > 0) && (e820_map[n - 1].addr + e820_map[n - 1].size == start) && |
269 | (e820_map[n - 1].type == type)) | |
270 | e820_map[n - 1].size += size; | |
271 | else | |
272 | { | |
273 | e820_map[n].addr = start; | |
274 | e820_map[n].size = size; | |
275 | e820_map[n].type = type; | |
276 | (*e820_num)++; | |
277 | } | |
119d11c8 | 278 | return GRUB_ERR_NONE; |
c9baafe7 | 279 | } |
280 | ||
c8142599 | 281 | static grub_err_t |
14aad807 | 282 | grub_linux_setup_video (struct linux_kernel_params *params) |
283 | { | |
284 | struct grub_video_mode_info mode_info; | |
d3539132 | 285 | void *framebuffer; |
c8142599 | 286 | grub_err_t err; |
3395fe52 | 287 | grub_video_driver_id_t driver_id; |
d35d0d37 | 288 | const char *gfxlfbvar = grub_env_get ("gfxpayloadforcelfb"); |
3395fe52 VS |
289 | |
290 | driver_id = grub_video_get_driver_id (); | |
291 | ||
292 | if (driver_id == GRUB_VIDEO_DRIVER_NONE) | |
293 | return 1; | |
c8142599 | 294 | |
c8142599 | 295 | err = grub_video_get_info_and_fini (&mode_info, &framebuffer); |
14aad807 | 296 | |
c8142599 | 297 | if (err) |
74e31b5c VS |
298 | { |
299 | grub_errno = GRUB_ERR_NONE; | |
300 | return 1; | |
301 | } | |
14aad807 | 302 | |
303 | params->lfb_width = mode_info.width; | |
304 | params->lfb_height = mode_info.height; | |
305 | params->lfb_depth = mode_info.bpp; | |
306 | params->lfb_line_len = mode_info.pitch; | |
307 | ||
d3539132 | 308 | params->lfb_base = (grub_size_t) framebuffer; |
7cae4377 | 309 | params->lfb_size = ALIGN_UP (params->lfb_line_len * params->lfb_height, 65536); |
14aad807 | 310 | |
7a6bf9f2 | 311 | params->red_mask_size = mode_info.red_mask_size; |
312 | params->red_field_pos = mode_info.red_field_pos; | |
313 | params->green_mask_size = mode_info.green_mask_size; | |
314 | params->green_field_pos = mode_info.green_field_pos; | |
315 | params->blue_mask_size = mode_info.blue_mask_size; | |
316 | params->blue_field_pos = mode_info.blue_field_pos; | |
317 | params->reserved_mask_size = mode_info.reserved_mask_size; | |
318 | params->reserved_field_pos = mode_info.reserved_field_pos; | |
14aad807 | 319 | |
3395fe52 VS |
320 | if (gfxlfbvar && (gfxlfbvar[0] == '1' || gfxlfbvar[0] == 'y')) |
321 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE; | |
322 | else | |
323 | { | |
324 | switch (driver_id) | |
325 | { | |
326 | case GRUB_VIDEO_DRIVER_VBE: | |
327 | params->lfb_size >>= 16; | |
328 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_VESA; | |
329 | break; | |
330 | ||
331 | case GRUB_VIDEO_DRIVER_EFI_UGA: | |
332 | case GRUB_VIDEO_DRIVER_EFI_GOP: | |
333 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_EFIFB; | |
334 | break; | |
335 | ||
336 | /* FIXME: check if better id is available. */ | |
337 | case GRUB_VIDEO_DRIVER_SM712: | |
67b1e5c9 | 338 | case GRUB_VIDEO_DRIVER_SIS315PRO: |
3395fe52 VS |
339 | case GRUB_VIDEO_DRIVER_VGA: |
340 | case GRUB_VIDEO_DRIVER_CIRRUS: | |
341 | case GRUB_VIDEO_DRIVER_BOCHS: | |
fe8d4a7b | 342 | case GRUB_VIDEO_DRIVER_RADEON_FULOONG2E: |
184c61dd | 343 | case GRUB_VIDEO_DRIVER_RADEON_YEELOONG3A: |
45fbd9a2 VS |
344 | case GRUB_VIDEO_DRIVER_IEEE1275: |
345 | case GRUB_VIDEO_DRIVER_COREBOOT: | |
3395fe52 | 346 | /* Make gcc happy. */ |
71669c3b | 347 | case GRUB_VIDEO_DRIVER_XEN: |
3395fe52 VS |
348 | case GRUB_VIDEO_DRIVER_SDL: |
349 | case GRUB_VIDEO_DRIVER_NONE: | |
095accd1 | 350 | case GRUB_VIDEO_ADAPTER_CAPTURE: |
3395fe52 VS |
351 | params->have_vga = GRUB_VIDEO_LINUX_TYPE_SIMPLE; |
352 | break; | |
353 | } | |
354 | } | |
61229557 | 355 | |
356 | #ifdef GRUB_MACHINE_PCBIOS | |
357 | /* VESA packed modes may come with zeroed mask sizes, which need | |
358 | to be set here according to DAC Palette width. If we don't, | |
359 | this results in Linux displaying a black screen. */ | |
3395fe52 | 360 | if (driver_id == GRUB_VIDEO_DRIVER_VBE && mode_info.bpp <= 8) |
61229557 | 361 | { |
362 | struct grub_vbe_info_block controller_info; | |
363 | int status; | |
364 | int width = 8; | |
365 | ||
366 | status = grub_vbe_bios_get_controller_info (&controller_info); | |
367 | ||
368 | if (status == GRUB_VBE_STATUS_OK && | |
369 | (controller_info.capabilities & GRUB_VBE_CAPABILITY_DACWIDTH)) | |
370 | status = grub_vbe_bios_set_dac_palette_width (&width); | |
371 | ||
372 | if (status != GRUB_VBE_STATUS_OK) | |
373 | /* 6 is default after mode reset. */ | |
374 | width = 6; | |
375 | ||
376 | params->red_mask_size = params->green_mask_size | |
377 | = params->blue_mask_size = width; | |
378 | params->reserved_mask_size = 0; | |
379 | } | |
380 | #endif | |
381 | ||
c8142599 | 382 | return GRUB_ERR_NONE; |
14aad807 | 383 | } |
384 | ||
d0d4b8a0 CW |
385 | /* Context for grub_linux_boot. */ |
386 | struct grub_linux_boot_ctx | |
387 | { | |
388 | grub_addr_t real_mode_target; | |
389 | grub_size_t real_size; | |
390 | struct linux_kernel_params *params; | |
391 | int e820_num; | |
392 | }; | |
393 | ||
394 | /* Helper for grub_linux_boot. */ | |
395 | static int | |
396 | grub_linux_boot_mmap_find (grub_uint64_t addr, grub_uint64_t size, | |
397 | grub_memory_type_t type, void *data) | |
398 | { | |
399 | struct grub_linux_boot_ctx *ctx = data; | |
400 | ||
401 | /* We must put real mode code in the traditional space. */ | |
402 | if (type != GRUB_MEMORY_AVAILABLE || addr > 0x90000) | |
403 | return 0; | |
404 | ||
405 | if (addr + size < 0x10000) | |
406 | return 0; | |
407 | ||
408 | if (addr < 0x10000) | |
409 | { | |
410 | size += addr - 0x10000; | |
411 | addr = 0x10000; | |
412 | } | |
413 | ||
414 | if (addr + size > 0x90000) | |
415 | size = 0x90000 - addr; | |
416 | ||
417 | if (ctx->real_size + efi_mmap_size > size) | |
418 | return 0; | |
419 | ||
420 | grub_dprintf ("linux", "addr = %lx, size = %x, need_size = %x\n", | |
421 | (unsigned long) addr, | |
422 | (unsigned) size, | |
423 | (unsigned) (ctx->real_size + efi_mmap_size)); | |
424 | ctx->real_mode_target = ((addr + size) - (ctx->real_size + efi_mmap_size)); | |
425 | return 1; | |
426 | } | |
427 | ||
6de9ee86 | 428 | /* GRUB types conveniently match E820 types. */ |
d0d4b8a0 CW |
429 | static int |
430 | grub_linux_boot_mmap_fill (grub_uint64_t addr, grub_uint64_t size, | |
431 | grub_memory_type_t type, void *data) | |
432 | { | |
433 | struct grub_linux_boot_ctx *ctx = data; | |
434 | ||
d0d4b8a0 | 435 | if (grub_e820_add_region (ctx->params->e820_map, &ctx->e820_num, |
6de9ee86 | 436 | addr, size, type)) |
d0d4b8a0 CW |
437 | return 1; |
438 | ||
439 | return 0; | |
440 | } | |
441 | ||
c9baafe7 | 442 | static grub_err_t |
a9368fd3 | 443 | grub_linux_boot (void) |
c9baafe7 | 444 | { |
ad760f81 | 445 | grub_err_t err = 0; |
d35d0d37 VS |
446 | const char *modevar; |
447 | char *tmp; | |
55b40bc6 | 448 | struct grub_relocator32_state state; |
a4e5ca80 | 449 | void *real_mode_mem; |
d0d4b8a0 CW |
450 | struct grub_linux_boot_ctx ctx = { |
451 | .real_mode_target = 0 | |
452 | }; | |
453 | grub_size_t mmap_size; | |
a4e5ca80 VS |
454 | grub_size_t cl_offset; |
455 | ||
67caf9eb VS |
456 | #ifdef GRUB_MACHINE_IEEE1275 |
457 | { | |
458 | const char *bootpath; | |
459 | grub_ssize_t len; | |
460 | ||
461 | bootpath = grub_env_get ("root"); | |
462 | if (bootpath) | |
463 | grub_ieee1275_set_property (grub_ieee1275_chosen, | |
464 | "bootpath", bootpath, | |
465 | grub_strlen (bootpath) + 1, | |
466 | &len); | |
467 | linux_params.ofw_signature = GRUB_LINUX_OFW_SIGNATURE; | |
468 | linux_params.ofw_num_items = 1; | |
469 | linux_params.ofw_cif_handler = (grub_uint32_t) grub_ieee1275_entry_fn; | |
470 | linux_params.ofw_idt = 0; | |
471 | } | |
472 | #endif | |
473 | ||
474 | modevar = grub_env_get ("gfxpayload"); | |
475 | ||
476 | /* Now all graphical modes are acceptable. | |
477 | May change in future if we have modes without framebuffer. */ | |
478 | if (modevar && *modevar != 0) | |
479 | { | |
480 | tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar); | |
481 | if (! tmp) | |
482 | return grub_errno; | |
483 | #if ACCEPTS_PURE_TEXT | |
484 | err = grub_video_set_mode (tmp, 0, 0); | |
485 | #else | |
486 | err = grub_video_set_mode (tmp, GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0); | |
487 | #endif | |
488 | grub_free (tmp); | |
489 | } | |
1a40f80c VS |
490 | else /* We can't go back to text mode from coreboot fb. */ |
491 | #ifdef GRUB_MACHINE_COREBOOT | |
492 | if (grub_video_get_driver_id () == GRUB_VIDEO_DRIVER_COREBOOT) | |
493 | err = GRUB_ERR_NONE; | |
494 | else | |
495 | #endif | |
496 | { | |
67caf9eb | 497 | #if ACCEPTS_PURE_TEXT |
1a40f80c | 498 | err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0, 0); |
67caf9eb | 499 | #else |
1a40f80c | 500 | err = grub_video_set_mode (DEFAULT_VIDEO_MODE, |
67caf9eb VS |
501 | GRUB_VIDEO_MODE_TYPE_PURE_TEXT, 0); |
502 | #endif | |
1a40f80c | 503 | } |
67caf9eb VS |
504 | |
505 | if (err) | |
506 | { | |
507 | grub_print_error (); | |
508 | grub_puts_ (N_("Booting in blind mode")); | |
509 | grub_errno = GRUB_ERR_NONE; | |
510 | } | |
511 | ||
512 | if (grub_linux_setup_video (&linux_params)) | |
513 | { | |
514 | #if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU) | |
515 | linux_params.have_vga = GRUB_VIDEO_LINUX_TYPE_TEXT; | |
516 | linux_params.video_mode = 0x3; | |
517 | #else | |
518 | linux_params.have_vga = 0; | |
519 | linux_params.video_mode = 0; | |
520 | linux_params.video_width = 0; | |
521 | linux_params.video_height = 0; | |
522 | #endif | |
523 | } | |
524 | ||
525 | ||
526 | #ifndef GRUB_MACHINE_IEEE1275 | |
527 | if (linux_params.have_vga == GRUB_VIDEO_LINUX_TYPE_TEXT) | |
528 | #endif | |
529 | { | |
530 | grub_term_output_t term; | |
531 | int found = 0; | |
532 | FOR_ACTIVE_TERM_OUTPUTS(term) | |
533 | if (grub_strcmp (term->name, "vga_text") == 0 | |
534 | || grub_strcmp (term->name, "console") == 0 | |
535 | || grub_strcmp (term->name, "ofconsole") == 0) | |
536 | { | |
e89c2d48 VS |
537 | struct grub_term_coordinate pos = grub_term_getxy (term); |
538 | linux_params.video_cursor_x = pos.x; | |
539 | linux_params.video_cursor_y = pos.y; | |
67caf9eb VS |
540 | linux_params.video_width = grub_term_width (term); |
541 | linux_params.video_height = grub_term_height (term); | |
542 | found = 1; | |
543 | break; | |
544 | } | |
545 | if (!found) | |
546 | { | |
547 | linux_params.video_cursor_x = 0; | |
548 | linux_params.video_cursor_y = 0; | |
549 | linux_params.video_width = 80; | |
550 | linux_params.video_height = 25; | |
551 | } | |
552 | } | |
553 | ||
a4e5ca80 VS |
554 | mmap_size = find_mmap_size (); |
555 | /* Make sure that each size is aligned to a page boundary. */ | |
67caf9eb VS |
556 | cl_offset = ALIGN_UP (mmap_size + sizeof (linux_params), 4096); |
557 | if (cl_offset < ((grub_size_t) linux_params.setup_sects << GRUB_DISK_SECTOR_BITS)) | |
558 | cl_offset = ALIGN_UP ((grub_size_t) (linux_params.setup_sects | |
f19cb95e | 559 | << GRUB_DISK_SECTOR_BITS), 4096); |
d0d4b8a0 | 560 | ctx.real_size = ALIGN_UP (cl_offset + maximal_cmdline_size, 4096); |
a4e5ca80 VS |
561 | |
562 | #ifdef GRUB_MACHINE_EFI | |
563 | efi_mmap_size = find_efi_mmap_size (); | |
564 | if (efi_mmap_size == 0) | |
565 | return grub_errno; | |
566 | #endif | |
567 | ||
568 | grub_dprintf ("linux", "real_size = %x, mmap_size = %x\n", | |
d0d4b8a0 | 569 | (unsigned) ctx.real_size, (unsigned) mmap_size); |
a4e5ca80 | 570 | |
a4e5ca80 | 571 | #ifdef GRUB_MACHINE_EFI |
d0d4b8a0 CW |
572 | grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 1); |
573 | if (! ctx.real_mode_target) | |
574 | grub_efi_mmap_iterate (grub_linux_boot_mmap_find, &ctx, 0); | |
a4e5ca80 | 575 | #else |
d0d4b8a0 | 576 | grub_mmap_iterate (grub_linux_boot_mmap_find, &ctx); |
a4e5ca80 | 577 | #endif |
f19cb95e | 578 | grub_dprintf ("linux", "real_mode_target = %lx, real_size = %x, efi_mmap_size = %x\n", |
d0d4b8a0 CW |
579 | (unsigned long) ctx.real_mode_target, |
580 | (unsigned) ctx.real_size, | |
f19cb95e VS |
581 | (unsigned) efi_mmap_size); |
582 | ||
d0d4b8a0 | 583 | if (! ctx.real_mode_target) |
a4e5ca80 VS |
584 | return grub_error (GRUB_ERR_OUT_OF_MEMORY, "cannot allocate real mode pages"); |
585 | ||
586 | { | |
587 | grub_relocator_chunk_t ch; | |
588 | err = grub_relocator_alloc_chunk_addr (relocator, &ch, | |
d0d4b8a0 CW |
589 | ctx.real_mode_target, |
590 | (ctx.real_size + efi_mmap_size)); | |
a4e5ca80 VS |
591 | if (err) |
592 | return err; | |
593 | real_mode_mem = get_virtual_current_address (ch); | |
594 | } | |
d0d4b8a0 | 595 | efi_mmap_buf = (grub_uint8_t *) real_mode_mem + ctx.real_size; |
a4e5ca80 | 596 | |
24ca71c9 VS |
597 | grub_dprintf ("linux", "real_mode_mem = %p\n", |
598 | real_mode_mem); | |
67caf9eb | 599 | |
d0d4b8a0 | 600 | ctx.params = real_mode_mem; |
c9baafe7 | 601 | |
d0d4b8a0 CW |
602 | *ctx.params = linux_params; |
603 | ctx.params->cmd_line_ptr = ctx.real_mode_target + cl_offset; | |
604 | grub_memcpy ((char *) ctx.params + cl_offset, linux_cmdline, | |
a4e5ca80 VS |
605 | maximal_cmdline_size); |
606 | ||
55b40bc6 | 607 | grub_dprintf ("linux", "code32_start = %x\n", |
d0d4b8a0 | 608 | (unsigned) ctx.params->code32_start); |
c9baafe7 | 609 | |
d0d4b8a0 CW |
610 | ctx.e820_num = 0; |
611 | if (grub_mmap_iterate (grub_linux_boot_mmap_fill, &ctx)) | |
119d11c8 | 612 | return grub_errno; |
d0d4b8a0 | 613 | ctx.params->mmap_size = ctx.e820_num; |
c9baafe7 | 614 | |
c8142599 VS |
615 | #ifdef GRUB_MACHINE_EFI |
616 | { | |
91b58e6b | 617 | grub_efi_uintn_t efi_desc_size; |
3c62402d | 618 | grub_size_t efi_mmap_target; |
c8142599 | 619 | grub_efi_uint32_t efi_desc_version; |
91b58e6b VS |
620 | err = grub_efi_finish_boot_services (&efi_mmap_size, efi_mmap_buf, NULL, |
621 | &efi_desc_size, &efi_desc_version); | |
622 | if (err) | |
623 | return err; | |
c8142599 | 624 | |
c8142599 | 625 | /* Note that no boot services are available from here. */ |
d0d4b8a0 | 626 | efi_mmap_target = ctx.real_mode_target |
3c62402d | 627 | + ((grub_uint8_t *) efi_mmap_buf - (grub_uint8_t *) real_mode_mem); |
c8142599 | 628 | /* Pass EFI parameters. */ |
d0d4b8a0 | 629 | if (grub_le_to_cpu16 (ctx.params->version) >= 0x0208) |
bcc75fb3 | 630 | { |
d0d4b8a0 CW |
631 | ctx.params->v0208.efi_mem_desc_size = efi_desc_size; |
632 | ctx.params->v0208.efi_mem_desc_version = efi_desc_version; | |
633 | ctx.params->v0208.efi_mmap = efi_mmap_target; | |
634 | ctx.params->v0208.efi_mmap_size = efi_mmap_size; | |
bcc75fb3 PJ |
635 | |
636 | #ifdef __x86_64__ | |
d0d4b8a0 | 637 | ctx.params->v0208.efi_mmap_hi = (efi_mmap_target >> 32); |
bcc75fb3 PJ |
638 | #endif |
639 | } | |
d0d4b8a0 | 640 | else if (grub_le_to_cpu16 (ctx.params->version) >= 0x0206) |
c8142599 | 641 | { |
d0d4b8a0 CW |
642 | ctx.params->v0206.efi_mem_desc_size = efi_desc_size; |
643 | ctx.params->v0206.efi_mem_desc_version = efi_desc_version; | |
644 | ctx.params->v0206.efi_mmap = efi_mmap_target; | |
645 | ctx.params->v0206.efi_mmap_size = efi_mmap_size; | |
c8142599 | 646 | } |
d0d4b8a0 | 647 | else if (grub_le_to_cpu16 (ctx.params->version) >= 0x0204) |
c8142599 | 648 | { |
d0d4b8a0 CW |
649 | ctx.params->v0204.efi_mem_desc_size = efi_desc_size; |
650 | ctx.params->v0204.efi_mem_desc_version = efi_desc_version; | |
651 | ctx.params->v0204.efi_mmap = efi_mmap_target; | |
652 | ctx.params->v0204.efi_mmap_size = efi_mmap_size; | |
c8142599 VS |
653 | } |
654 | } | |
655 | #endif | |
656 | ||
55b40bc6 VS |
657 | /* FIXME. */ |
658 | /* asm volatile ("lidt %0" : : "m" (idt_desc)); */ | |
9056cbf3 | 659 | state.ebp = state.edi = state.ebx = 0; |
d0d4b8a0 CW |
660 | state.esi = ctx.real_mode_target; |
661 | state.esp = ctx.real_mode_target; | |
662 | state.eip = ctx.params->code32_start; | |
9be4c45d | 663 | return grub_relocator32_boot (relocator, state, 0); |
c9baafe7 | 664 | } |
665 | ||
666 | static grub_err_t | |
667 | grub_linux_unload (void) | |
668 | { | |
c9baafe7 | 669 | grub_dl_unref (my_mod); |
670 | loaded = 0; | |
a4e5ca80 VS |
671 | grub_free (linux_cmdline); |
672 | linux_cmdline = 0; | |
c9baafe7 | 673 | return GRUB_ERR_NONE; |
674 | } | |
675 | ||
b1b797cb | 676 | static grub_err_t |
677 | grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), | |
678 | int argc, char *argv[]) | |
c9baafe7 | 679 | { |
680 | grub_file_t file = 0; | |
7d36709d | 681 | struct linux_i386_kernel_header lh; |
c9baafe7 | 682 | grub_uint8_t setup_sects; |
7c8d0ce7 | 683 | grub_size_t real_size, prot_size, prot_file_size; |
c9baafe7 | 684 | grub_ssize_t len; |
685 | int i; | |
9be4c45d VS |
686 | grub_size_t align, min_align; |
687 | int relocatable; | |
39525c22 | 688 | grub_uint64_t preferred_address = GRUB_LINUX_BZIMAGE_ADDR; |
c9baafe7 | 689 | |
690 | grub_dl_ref (my_mod); | |
b39f9d20 | 691 | |
c9baafe7 | 692 | if (argc == 0) |
693 | { | |
9c4b5c13 | 694 | grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); |
c9baafe7 | 695 | goto fail; |
696 | } | |
697 | ||
698 | file = grub_file_open (argv[0]); | |
699 | if (! file) | |
87a4623b | 700 | goto fail; |
c9baafe7 | 701 | |
5c5215d5 | 702 | if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh)) |
c9baafe7 | 703 | { |
7a45a539 | 704 | if (!grub_errno) |
9c4b5c13 | 705 | grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), |
7a45a539 | 706 | argv[0]); |
c9baafe7 | 707 | goto fail; |
708 | } | |
709 | ||
ec824e0f | 710 | if (lh.boot_flag != grub_cpu_to_le16_compile_time (0xaa55)) |
c9baafe7 | 711 | { |
712 | grub_error (GRUB_ERR_BAD_OS, "invalid magic number"); | |
713 | goto fail; | |
714 | } | |
715 | ||
716 | if (lh.setup_sects > GRUB_LINUX_MAX_SETUP_SECTS) | |
717 | { | |
718 | grub_error (GRUB_ERR_BAD_OS, "too many setup sectors"); | |
719 | goto fail; | |
720 | } | |
721 | ||
9bab65c4 VS |
722 | /* FIXME: 2.03 is not always good enough (Linux 2.4 can be 2.03 and |
723 | still not support 32-bit boot. */ | |
3245f02d | 724 | if (lh.header != grub_cpu_to_le32_compile_time (GRUB_LINUX_I386_MAGIC_SIGNATURE) |
9bab65c4 | 725 | || grub_le_to_cpu16 (lh.version) < 0x0203) |
c9baafe7 | 726 | { |
9bab65c4 | 727 | grub_error (GRUB_ERR_BAD_OS, "version too old for 32-bit boot" |
92f33540 | 728 | #ifdef GRUB_MACHINE_PCBIOS |
729 | " (try with `linux16')" | |
730 | #endif | |
731 | ); | |
c9baafe7 | 732 | goto fail; |
733 | } | |
734 | ||
9bab65c4 | 735 | if (! (lh.loadflags & GRUB_LINUX_FLAG_BIG_KERNEL)) |
c9baafe7 | 736 | { |
9bab65c4 | 737 | grub_error (GRUB_ERR_BAD_OS, "zImage doesn't support 32-bit boot" |
92f33540 | 738 | #ifdef GRUB_MACHINE_PCBIOS |
739 | " (try with `linux16')" | |
740 | #endif | |
741 | ); | |
c9baafe7 | 742 | goto fail; |
743 | } | |
744 | ||
a06eb03a VS |
745 | if (grub_le_to_cpu16 (lh.version) >= 0x0206) |
746 | maximal_cmdline_size = grub_le_to_cpu32 (lh.cmdline_size) + 1; | |
747 | else | |
748 | maximal_cmdline_size = 256; | |
749 | ||
750 | if (maximal_cmdline_size < 128) | |
751 | maximal_cmdline_size = 128; | |
752 | ||
c9baafe7 | 753 | setup_sects = lh.setup_sects; |
b39f9d20 | 754 | |
c9baafe7 | 755 | /* If SETUP_SECTS is not set, set it to the default (4). */ |
756 | if (! setup_sects) | |
757 | setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS; | |
758 | ||
759 | real_size = setup_sects << GRUB_DISK_SECTOR_BITS; | |
7c8d0ce7 | 760 | prot_file_size = grub_file_size (file) - real_size - GRUB_DISK_SECTOR_SIZE; |
b39f9d20 | 761 | |
9be4c45d VS |
762 | if (grub_le_to_cpu16 (lh.version) >= 0x205 |
763 | && lh.kernel_alignment != 0 | |
764 | && ((lh.kernel_alignment - 1) & lh.kernel_alignment) == 0) | |
765 | { | |
766 | for (align = 0; align < 32; align++) | |
767 | if (grub_le_to_cpu32 (lh.kernel_alignment) & (1 << align)) | |
768 | break; | |
769 | relocatable = grub_le_to_cpu32 (lh.relocatable); | |
770 | } | |
771 | else | |
772 | { | |
773 | align = 0; | |
774 | relocatable = 0; | |
775 | } | |
776 | ||
777 | if (grub_le_to_cpu16 (lh.version) >= 0x020a) | |
778 | { | |
779 | min_align = lh.min_alignment; | |
780 | prot_size = grub_le_to_cpu32 (lh.init_size); | |
807fb77c | 781 | prot_init_space = page_align (prot_size); |
2282da4a | 782 | if (relocatable) |
39525c22 | 783 | preferred_address = grub_le_to_cpu64 (lh.pref_address); |
2282da4a | 784 | else |
39525c22 | 785 | preferred_address = GRUB_LINUX_BZIMAGE_ADDR; |
9be4c45d VS |
786 | } |
787 | else | |
788 | { | |
807fb77c | 789 | min_align = align; |
7c8d0ce7 | 790 | prot_size = prot_file_size; |
39525c22 | 791 | preferred_address = GRUB_LINUX_BZIMAGE_ADDR; |
807fb77c VS |
792 | /* Usually, the compression ratio is about 50%. */ |
793 | prot_init_space = page_align (prot_size) * 3; | |
9be4c45d VS |
794 | } |
795 | ||
796 | if (allocate_pages (prot_size, &align, | |
797 | min_align, relocatable, | |
39525c22 | 798 | preferred_address)) |
c9baafe7 | 799 | goto fail; |
b39f9d20 | 800 | |
cc2fa5ec VS |
801 | grub_memset (&linux_params, 0, sizeof (linux_params)); |
802 | grub_memcpy (&linux_params.setup_sects, &lh.setup_sects, sizeof (lh) - 0x1F1); | |
c9baafe7 | 803 | |
cc2fa5ec VS |
804 | linux_params.code32_start = prot_mode_target + lh.code32_start - GRUB_LINUX_BZIMAGE_ADDR; |
805 | linux_params.kernel_alignment = (1 << align); | |
806 | linux_params.ps_mouse = linux_params.padding10 = 0; | |
c9baafe7 | 807 | |
cc2fa5ec VS |
808 | len = sizeof (linux_params) - sizeof (lh); |
809 | if (grub_file_read (file, (char *) &linux_params + sizeof (lh), len) != len) | |
c9baafe7 | 810 | { |
7a45a539 | 811 | if (!grub_errno) |
9c4b5c13 | 812 | grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), |
7a45a539 | 813 | argv[0]); |
c9baafe7 | 814 | goto fail; |
815 | } | |
816 | ||
cc2fa5ec | 817 | linux_params.type_of_loader = GRUB_LINUX_BOOT_LOADER_TYPE; |
c9baafe7 | 818 | |
b09db61d | 819 | /* These two are used (instead of cmd_line_ptr) by older versions of Linux, |
820 | and otherwise ignored. */ | |
cc2fa5ec VS |
821 | linux_params.cl_magic = GRUB_LINUX_CL_MAGIC; |
822 | linux_params.cl_offset = 0x1000; | |
b09db61d | 823 | |
cc2fa5ec VS |
824 | linux_params.ramdisk_image = 0; |
825 | linux_params.ramdisk_size = 0; | |
c9baafe7 | 826 | |
cc2fa5ec VS |
827 | linux_params.heap_end_ptr = GRUB_LINUX_HEAP_END_OFFSET; |
828 | linux_params.loadflags |= GRUB_LINUX_FLAG_CAN_USE_HEAP; | |
c9baafe7 | 829 | |
830 | /* These are not needed to be precise, because Linux uses these values | |
831 | only to raise an error when the decompression code cannot find good | |
832 | space. */ | |
cc2fa5ec VS |
833 | linux_params.ext_mem = ((32 * 0x100000) >> 10); |
834 | linux_params.alt_mem = ((32 * 0x100000) >> 10); | |
b39f9d20 | 835 | |
b09db61d | 836 | /* Ignored by Linux. */ |
cc2fa5ec | 837 | linux_params.video_page = 0; |
b09db61d | 838 | |
b09db61d | 839 | /* Only used when `video_mode == 0x7', otherwise ignored. */ |
cc2fa5ec | 840 | linux_params.video_ega_bx = 0; |
b09db61d | 841 | |
cc2fa5ec | 842 | linux_params.font_size = 16; /* XXX */ |
c9baafe7 | 843 | |
c8142599 | 844 | #ifdef GRUB_MACHINE_EFI |
bcc75fb3 | 845 | #ifdef __x86_64__ |
cc2fa5ec | 846 | if (grub_le_to_cpu16 (linux_params.version) < 0x0208 && |
bcc75fb3 PJ |
847 | ((grub_addr_t) grub_efi_system_table >> 32) != 0) |
848 | return grub_error(GRUB_ERR_BAD_OS, | |
849 | "kernel does not support 64-bit addressing"); | |
850 | #endif | |
851 | ||
cc2fa5ec | 852 | if (grub_le_to_cpu16 (linux_params.version) >= 0x0208) |
c8142599 | 853 | { |
cc2fa5ec | 854 | linux_params.v0208.efi_signature = GRUB_LINUX_EFI_SIGNATURE; |
111bf5db | 855 | linux_params.v0208.efi_system_table = (grub_uint32_t) (grub_addr_t) grub_efi_system_table; |
c8142599 | 856 | #ifdef __x86_64__ |
cc2fa5ec | 857 | linux_params.v0208.efi_system_table_hi = (grub_uint32_t) ((grub_uint64_t) grub_efi_system_table >> 32); |
c8142599 VS |
858 | #endif |
859 | } | |
cc2fa5ec | 860 | else if (grub_le_to_cpu16 (linux_params.version) >= 0x0206) |
bcc75fb3 | 861 | { |
cc2fa5ec | 862 | linux_params.v0206.efi_signature = GRUB_LINUX_EFI_SIGNATURE; |
111bf5db | 863 | linux_params.v0206.efi_system_table = (grub_uint32_t) (grub_addr_t) grub_efi_system_table; |
bcc75fb3 | 864 | } |
cc2fa5ec | 865 | else if (grub_le_to_cpu16 (linux_params.version) >= 0x0204) |
c8142599 | 866 | { |
cc2fa5ec | 867 | linux_params.v0204.efi_signature = GRUB_LINUX_EFI_SIGNATURE_0204; |
111bf5db | 868 | linux_params.v0204.efi_system_table = (grub_uint32_t) (grub_addr_t) grub_efi_system_table; |
c8142599 VS |
869 | } |
870 | #endif | |
871 | ||
c9baafe7 | 872 | /* The other parameters are filled when booting. */ |
873 | ||
874 | grub_file_seek (file, real_size + GRUB_DISK_SECTOR_SIZE); | |
875 | ||
1a064917 RM |
876 | grub_dprintf ("linux", "bzImage, setup=0x%x, size=0x%x\n", |
877 | (unsigned) real_size, (unsigned) prot_size); | |
c9baafe7 | 878 | |
1007d1f5 | 879 | /* Look for memory size and video mode specified on the command line. */ |
c9baafe7 | 880 | linux_mem_size = 0; |
c9baafe7 | 881 | for (i = 1; i < argc; i++) |
b01f0548 | 882 | #ifdef GRUB_MACHINE_PCBIOS |
9c323f09 | 883 | if (grub_memcmp (argv[i], "vga=", 4) == 0) |
884 | { | |
885 | /* Video mode selection support. */ | |
886 | char *val = argv[i] + 4; | |
3eb5ed4e | 887 | unsigned vid_mode = GRUB_LINUX_VID_MODE_NORMAL; |
e31bb619 | 888 | struct grub_vesa_mode_table_entry *linux_mode; |
3eb5ed4e | 889 | grub_err_t err; |
890 | char *buf; | |
9c323f09 | 891 | |
2b36fbf4 VS |
892 | grub_dl_load ("vbe"); |
893 | ||
9c323f09 | 894 | if (grub_strcmp (val, "normal") == 0) |
895 | vid_mode = GRUB_LINUX_VID_MODE_NORMAL; | |
896 | else if (grub_strcmp (val, "ext") == 0) | |
897 | vid_mode = GRUB_LINUX_VID_MODE_EXTENDED; | |
1007d1f5 | 898 | else if (grub_strcmp (val, "ask") == 0) |
cba416eb | 899 | { |
10f0117b | 900 | grub_puts_ (N_("Legacy `ask' parameter no longer supported.")); |
6c67de15 | 901 | |
902 | /* We usually would never do this in a loader, but "vga=ask" means user | |
903 | requested interaction, so it can't hurt to request keyboard input. */ | |
904 | grub_wait_after_message (); | |
905 | ||
cba416eb | 906 | goto fail; |
907 | } | |
9c323f09 | 908 | else |
909 | vid_mode = (grub_uint16_t) grub_strtoul (val, 0, 0); | |
910 | ||
112972a9 | 911 | switch (vid_mode) |
912 | { | |
913 | case 0: | |
3eb5ed4e | 914 | case GRUB_LINUX_VID_MODE_NORMAL: |
915 | grub_env_set ("gfxpayload", "text"); | |
10f0117b | 916 | grub_printf_ (N_("%s is deprecated. " |
67093bc0 | 917 | "Use set gfxpayload=%s before " |
972765fe AB |
918 | "linux command instead.\n"), |
919 | argv[i], "text"); | |
112972a9 | 920 | break; |
3eb5ed4e | 921 | |
112972a9 | 922 | case 1: |
3eb5ed4e | 923 | case GRUB_LINUX_VID_MODE_EXTENDED: |
924 | /* FIXME: support 80x50 text. */ | |
925 | grub_env_set ("gfxpayload", "text"); | |
10f0117b | 926 | grub_printf_ (N_("%s is deprecated. " |
67093bc0 | 927 | "Use set gfxpayload=%s before " |
972765fe AB |
928 | "linux command instead.\n"), |
929 | argv[i], "text"); | |
112972a9 | 930 | break; |
931 | default: | |
932 | /* Ignore invalid values. */ | |
e31bb619 VS |
933 | if (vid_mode < GRUB_VESA_MODE_TABLE_START || |
934 | vid_mode > GRUB_VESA_MODE_TABLE_END) | |
3eb5ed4e | 935 | { |
936 | grub_env_set ("gfxpayload", "text"); | |
6e69da9c VS |
937 | /* TRANSLATORS: "x" has to be entered in, like an identifier, |
938 | so please don't use better Unicode codepoints. */ | |
8822a8a0 | 939 | grub_printf_ (N_("%s is deprecated. VGA mode %d isn't recognized. " |
10f0117b VS |
940 | "Use set gfxpayload=WIDTHxHEIGHT[xDEPTH] " |
941 | "before linux command instead.\n"), | |
b39f9d20 | 942 | argv[i], vid_mode); |
3eb5ed4e | 943 | break; |
944 | } | |
945 | ||
e31bb619 VS |
946 | linux_mode = &grub_vesa_mode_table[vid_mode |
947 | - GRUB_VESA_MODE_TABLE_START]; | |
b39f9d20 | 948 | |
61eb45ee | 949 | buf = grub_xasprintf ("%ux%ux%u,%ux%u", |
e31bb619 | 950 | linux_mode->width, linux_mode->height, |
8b442f3f | 951 | linux_mode->depth, |
e31bb619 | 952 | linux_mode->width, linux_mode->height); |
8b442f3f VS |
953 | if (! buf) |
954 | goto fail; | |
955 | ||
10f0117b VS |
956 | grub_printf_ (N_("%s is deprecated. " |
957 | "Use set gfxpayload=%s before " | |
958 | "linux command instead.\n"), | |
b39f9d20 | 959 | argv[i], buf); |
3eb5ed4e | 960 | err = grub_env_set ("gfxpayload", buf); |
961 | grub_free (buf); | |
962 | if (err) | |
963 | goto fail; | |
112972a9 | 964 | } |
9c323f09 | 965 | } |
7c1d00cd | 966 | else |
b01f0548 | 967 | #endif /* GRUB_MACHINE_PCBIOS */ |
7c1d00cd | 968 | if (grub_memcmp (argv[i], "mem=", 4) == 0) |
c9baafe7 | 969 | { |
970 | char *val = argv[i] + 4; | |
b39f9d20 | 971 | |
c9baafe7 | 972 | linux_mem_size = grub_strtoul (val, &val, 0); |
b39f9d20 | 973 | |
c9baafe7 | 974 | if (grub_errno) |
975 | { | |
976 | grub_errno = GRUB_ERR_NONE; | |
977 | linux_mem_size = 0; | |
978 | } | |
979 | else | |
980 | { | |
981 | int shift = 0; | |
b39f9d20 | 982 | |
c9baafe7 | 983 | switch (grub_tolower (val[0])) |
984 | { | |
985 | case 'g': | |
986 | shift += 10; | |
4bd4a887 | 987 | /* FALLTHROUGH */ |
c9baafe7 | 988 | case 'm': |
989 | shift += 10; | |
4bd4a887 | 990 | /* FALLTHROUGH */ |
c9baafe7 | 991 | case 'k': |
992 | shift += 10; | |
4bd4a887 | 993 | /* FALLTHROUGH */ |
c9baafe7 | 994 | default: |
995 | break; | |
996 | } | |
997 | ||
998 | /* Check an overflow. */ | |
999 | if (linux_mem_size > (~0UL >> shift)) | |
1000 | linux_mem_size = 0; | |
1001 | else | |
1002 | linux_mem_size <<= shift; | |
1003 | } | |
1004 | } | |
28333ad0 | 1005 | else if (grub_memcmp (argv[i], "quiet", sizeof ("quiet") - 1) == 0) |
1006 | { | |
cc2fa5ec | 1007 | linux_params.loadflags |= GRUB_LINUX_FLAG_QUIET; |
28333ad0 | 1008 | } |
1009 | ||
25953e10 | 1010 | /* Create kernel command line. */ |
a4e5ca80 VS |
1011 | linux_cmdline = grub_zalloc (maximal_cmdline_size + 1); |
1012 | if (!linux_cmdline) | |
1013 | goto fail; | |
1014 | grub_memcpy (linux_cmdline, LINUX_IMAGE, sizeof (LINUX_IMAGE)); | |
25953e10 | 1015 | grub_create_loader_cmdline (argc, argv, |
a4e5ca80 | 1016 | linux_cmdline |
25953e10 | 1017 | + sizeof (LINUX_IMAGE) - 1, |
05caa461 | 1018 | maximal_cmdline_size |
25953e10 | 1019 | - (sizeof (LINUX_IMAGE) - 1)); |
c9baafe7 | 1020 | |
7c8d0ce7 | 1021 | len = prot_file_size; |
7a45a539 | 1022 | if (grub_file_read (file, prot_mode_mem, len) != len && !grub_errno) |
9c4b5c13 | 1023 | grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"), |
7a45a539 | 1024 | argv[0]); |
c9baafe7 | 1025 | |
1026 | if (grub_errno == GRUB_ERR_NONE) | |
1027 | { | |
a9368fd3 | 1028 | grub_loader_set (grub_linux_boot, grub_linux_unload, |
14aad807 | 1029 | 0 /* set noreturn=0 in order to avoid grub_console_fini() */); |
c9baafe7 | 1030 | loaded = 1; |
1031 | } | |
1032 | ||
1033 | fail: | |
b39f9d20 | 1034 | |
c9baafe7 | 1035 | if (file) |
1036 | grub_file_close (file); | |
1037 | ||
1038 | if (grub_errno != GRUB_ERR_NONE) | |
1039 | { | |
1040 | grub_dl_unref (my_mod); | |
1041 | loaded = 0; | |
1042 | } | |
b1b797cb | 1043 | |
1044 | return grub_errno; | |
c9baafe7 | 1045 | } |
1046 | ||
b1b797cb | 1047 | static grub_err_t |
1048 | grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), | |
1049 | int argc, char *argv[]) | |
c9baafe7 | 1050 | { |
e5b4ba8c | 1051 | grub_size_t size = 0, aligned_size = 0; |
c9baafe7 | 1052 | grub_addr_t addr_min, addr_max; |
1053 | grub_addr_t addr; | |
55b40bc6 | 1054 | grub_err_t err; |
9a67e1ac | 1055 | struct grub_linux_initrd_context initrd_ctx = { 0, 0, 0 }; |
b39f9d20 | 1056 | |
c9baafe7 | 1057 | if (argc == 0) |
1058 | { | |
9c4b5c13 | 1059 | grub_error (GRUB_ERR_BAD_ARGUMENT, N_("filename expected")); |
c9baafe7 | 1060 | goto fail; |
1061 | } | |
b39f9d20 | 1062 | |
c9baafe7 | 1063 | if (! loaded) |
1064 | { | |
9c4b5c13 | 1065 | grub_error (GRUB_ERR_BAD_ARGUMENT, N_("you need to load the kernel first")); |
c9baafe7 | 1066 | goto fail; |
1067 | } | |
1068 | ||
92750e4c | 1069 | if (grub_initrd_init (argc, argv, &initrd_ctx)) |
c9baafe7 | 1070 | goto fail; |
1071 | ||
92750e4c | 1072 | size = grub_get_initrd_size (&initrd_ctx); |
e5b4ba8c | 1073 | aligned_size = ALIGN_UP (size, 4096); |
c9baafe7 | 1074 | |
92907110 | 1075 | /* Get the highest address available for the initrd. */ |
8645f72c | 1076 | if (grub_le_to_cpu16 (linux_params.version) >= 0x0203) |
92907110 | 1077 | { |
8645f72c | 1078 | addr_max = grub_cpu_to_le32 (linux_params.initrd_addr_max); |
92907110 | 1079 | |
1080 | /* XXX in reality, Linux specifies a bogus value, so | |
1081 | it is necessary to make sure that ADDR_MAX does not exceed | |
1082 | 0x3fffffff. */ | |
1083 | if (addr_max > GRUB_LINUX_INITRD_MAX_ADDRESS) | |
1084 | addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS; | |
1085 | } | |
1086 | else | |
1087 | addr_max = GRUB_LINUX_INITRD_MAX_ADDRESS; | |
b39f9d20 | 1088 | |
c9baafe7 | 1089 | if (linux_mem_size != 0 && linux_mem_size < addr_max) |
1090 | addr_max = linux_mem_size; | |
b39f9d20 | 1091 | |
c9baafe7 | 1092 | /* Linux 2.3.xx has a bug in the memory range check, so avoid |
1093 | the last page. | |
1094 | Linux 2.2.xx has a bug in the memory range check, which is | |
1095 | worse than that of Linux 2.3.xx, so avoid the last 64kb. */ | |
1096 | addr_max -= 0x10000; | |
1097 | ||
6a0debbd | 1098 | addr_min = (grub_addr_t) prot_mode_target + prot_init_space; |
b39f9d20 | 1099 | |
92907110 | 1100 | /* Put the initrd as high as possible, 4KiB aligned. */ |
e5b4ba8c | 1101 | addr = (addr_max - aligned_size) & ~0xFFF; |
c9baafe7 | 1102 | |
92907110 | 1103 | if (addr < addr_min) |
c9baafe7 | 1104 | { |
7fd0baee | 1105 | grub_error (GRUB_ERR_OUT_OF_RANGE, "the initrd is too big"); |
c9baafe7 | 1106 | goto fail; |
1107 | } | |
b39f9d20 | 1108 | |
4b2ec20b VS |
1109 | { |
1110 | grub_relocator_chunk_t ch; | |
1111 | err = grub_relocator_alloc_chunk_align (relocator, &ch, | |
e5b4ba8c VS |
1112 | addr_min, addr, aligned_size, |
1113 | 0x1000, | |
9be4c45d VS |
1114 | GRUB_RELOCATOR_PREFERENCE_HIGH, |
1115 | 1); | |
4b2ec20b VS |
1116 | if (err) |
1117 | return err; | |
1118 | initrd_mem = get_virtual_current_address (ch); | |
1119 | initrd_mem_target = get_physical_target_address (ch); | |
1120 | } | |
b39f9d20 | 1121 | |
92750e4c VS |
1122 | if (grub_initrd_load (&initrd_ctx, argv, initrd_mem)) |
1123 | goto fail; | |
c9baafe7 | 1124 | |
1a064917 RM |
1125 | grub_dprintf ("linux", "Initrd, addr=0x%x, size=0x%x\n", |
1126 | (unsigned) addr, (unsigned) size); | |
b39f9d20 | 1127 | |
8645f72c VS |
1128 | linux_params.ramdisk_image = initrd_mem_target; |
1129 | linux_params.ramdisk_size = size; | |
1130 | linux_params.root_dev = 0x0100; /* XXX */ | |
b39f9d20 | 1131 | |
c9baafe7 | 1132 | fail: |
92750e4c | 1133 | grub_initrd_close (&initrd_ctx); |
b1b797cb | 1134 | |
1135 | return grub_errno; | |
c9baafe7 | 1136 | } |
1137 | ||
b1b797cb | 1138 | static grub_command_t cmd_linux, cmd_initrd; |
c9baafe7 | 1139 | |
1140 | GRUB_MOD_INIT(linux) | |
1141 | { | |
b1b797cb | 1142 | cmd_linux = grub_register_command ("linux", grub_cmd_linux, |
809bbfeb | 1143 | 0, N_("Load Linux.")); |
b1b797cb | 1144 | cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd, |
809bbfeb | 1145 | 0, N_("Load initrd.")); |
c9baafe7 | 1146 | my_mod = mod; |
1147 | } | |
1148 | ||
1149 | GRUB_MOD_FINI(linux) | |
1150 | { | |
b1b797cb | 1151 | grub_unregister_command (cmd_linux); |
1152 | grub_unregister_command (cmd_initrd); | |
c9baafe7 | 1153 | } |