{
return sizeof (struct multiboot_info) + ALIGN_UP (cmdline_size, 4)
+ modcnt * sizeof (struct multiboot_mod_list) + total_modcmd
- + ALIGN_UP (sizeof(PACKAGE_STRING), 4) + grub_get_multiboot_mmap_len ()
+ + ALIGN_UP (sizeof(PACKAGE_STRING), 4)
+ + grub_get_multiboot_mmap_count () * sizeof (struct multiboot_mmap_entry)
+ + elf_sec_entsize * elf_sec_num
+#if HAS_VBE
+ + sizeof (struct grub_vbe_info_block)
+ + sizeof (struct grub_vbe_mode_info_block)
+#endif
+ 256 * sizeof (struct multiboot_color);
}
grub_mmap_iterate (hook);
}
- static grub_err_t
- set_video_mode (void)
- {
- grub_err_t err;
- const char *modevar;
-
- if (accepts_video || !HAS_VGA_TEXT)
- {
- modevar = grub_env_get ("gfxpayload");
- if (! modevar || *modevar == 0)
- err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0);
- else
- {
- char *tmp;
- tmp = grub_malloc (grub_strlen (modevar)
- + sizeof (DEFAULT_VIDEO_MODE) + 1);
- if (! tmp)
- return grub_errno;
- grub_sprintf (tmp, "%s;" DEFAULT_VIDEO_MODE, modevar);
- err = grub_video_set_mode (tmp, 0);
- grub_free (tmp);
- }
- }
- else
- err = grub_video_set_mode ("text", 0);
-
- return err;
- }
-
+#if HAS_VBE
+static grub_err_t
+fill_vbe_info (struct multiboot_info *mbi, grub_uint8_t *ptrorig,
+ grub_uint32_t ptrdest, int fill_generic)
+{
+ grub_vbe_status_t status;
+ grub_uint32_t vbe_mode;
+ void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
+ struct grub_vbe_mode_info_block *mode_info;
+
+ status = grub_vbe_bios_get_controller_info (scratch);
+ if (status != GRUB_VBE_STATUS_OK)
+ return grub_error (GRUB_ERR_IO, "Can't get controller info.");
+
+ mbi->vbe_control_info = ptrdest;
+ grub_memcpy (ptrorig, scratch, sizeof (struct grub_vbe_info_block));
+ ptrorig += sizeof (struct grub_vbe_info_block);
+ ptrdest += sizeof (struct grub_vbe_info_block);
+
+ status = grub_vbe_bios_get_mode (scratch);
+ vbe_mode = *(grub_uint32_t *) scratch;
+ if (status != GRUB_VBE_STATUS_OK)
+ return grub_error (GRUB_ERR_IO, "can't get VBE mode");
+ mbi->vbe_mode = vbe_mode;
+
+ mode_info = (struct grub_vbe_mode_info_block *) ptrorig;
+ mbi->vbe_mode_info = ptrdest;
+ /* get_mode_info isn't available for mode 3. */
+ if (vbe_mode == 3)
+ {
+ grub_memset (mode_info, 0, sizeof (struct grub_vbe_mode_info_block));
+ mode_info->memory_model = GRUB_VBE_MEMORY_MODEL_TEXT;
+ mode_info->x_resolution = 80;
+ mode_info->y_resolution = 25;
+ }
+ else
+ {
+ status = grub_vbe_bios_get_mode_info (vbe_mode, scratch);
+ if (status != GRUB_VBE_STATUS_OK)
+ return grub_error (GRUB_ERR_IO, "can't get mode info");
+ grub_memcpy (mode_info, scratch,
+ sizeof (struct grub_vbe_mode_info_block));
+ }
+ ptrorig += sizeof (struct grub_vbe_mode_info_block);
+ ptrdest += sizeof (struct grub_vbe_mode_info_block);
+
+ /* FIXME: retrieve those. */
+ mbi->vbe_interface_seg = 0;
+ mbi->vbe_interface_off = 0;
+ mbi->vbe_interface_len = 0;
+
+ mbi->flags |= MULTIBOOT_INFO_VBE_INFO;
+
+ if (fill_generic && mode_info->memory_model == GRUB_VBE_MEMORY_MODEL_TEXT)
+ {
+ mbi->framebuffer_addr = 0xb8000;
+
+ mbi->framebuffer_pitch = 2 * mode_info->x_resolution;
+ mbi->framebuffer_width = mode_info->x_resolution;
+ mbi->framebuffer_height = mode_info->y_resolution;
+
+ mbi->framebuffer_bpp = 16;
+
+ mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT;
+
+ mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
+ }
+
+ return GRUB_ERR_NONE;
+}
+#endif
+
static grub_err_t
retrieve_video_parameters (struct multiboot_info *mbi,
grub_uint8_t *ptrorig, grub_uint32_t ptrdest)
grub_video_get_palette (0, ARRAY_SIZE (palette), palette);
driv_id = grub_video_get_driver_id ();
- #if HAS_VGA_TEXT
++#if GRUB_MACHINE_HAS_VGA_TEXT
+ if (driv_id == GRUB_VIDEO_DRIVER_NONE)
+ return fill_vbe_info (mbi, ptrorig, ptrdest, 1);
+#else
if (driv_id == GRUB_VIDEO_DRIVER_NONE)
return GRUB_ERR_NONE;
+#endif
err = grub_video_get_info_and_fini (&mode_info, &framebuffer);
if (err)
mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
- #if HAS_VBE
++#if GRUB_MACHINE_HAS_VBE
+ if (driv_id == GRUB_VIDEO_DRIVER_VBE)
+ return fill_vbe_info (mbi, ptrorig, ptrdest, 0);
+#endif
+
return GRUB_ERR_NONE;
}
grub_print_error ();
grub_errno = GRUB_ERR_NONE;
}
- #if HAS_VBE
++#if GRUB_MACHINE_HAS_VBE
+ ptrorig += sizeof (struct grub_vbe_info_block);
+ ptrdest += sizeof (struct grub_vbe_info_block);
+ ptrorig += sizeof (struct grub_vbe_mode_info_block);
+ ptrdest += sizeof (struct grub_vbe_mode_info_block);
+#endif
return GRUB_ERR_NONE;
}
--- /dev/null
- * - VBE support
- * - symbol table
+ /* multiboot.c - boot a multiboot OS image. */
+ /*
+ * GRUB -- GRand Unified Bootloader
+ * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2007,2008,2009,2010 Free Software Foundation, Inc.
+ *
+ * GRUB is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * GRUB is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with GRUB. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+ /*
+ * FIXME: The following features from the Multiboot specification still
+ * need to be implemented:
+ * - drives table
+ * - ROM configuration table
+ * - APM table
+ */
+
+ #include <grub/loader.h>
+ #include <grub/command.h>
+ #include <grub/multiboot.h>
+ #include <grub/cpu/multiboot.h>
+ #include <grub/machine/memory.h>
+ #include <grub/elf.h>
+ #include <grub/aout.h>
+ #include <grub/file.h>
+ #include <grub/err.h>
+ #include <grub/dl.h>
+ #include <grub/mm.h>
+ #include <grub/misc.h>
+ #include <grub/env.h>
+ #include <grub/cpu/relocator.h>
+ #include <grub/video.h>
+ #include <grub/memory.h>
+ #include <grub/i18n.h>
+
+ #ifdef GRUB_MACHINE_EFI
+ #include <grub/efi/efi.h>
+ #endif
+
+ struct grub_relocator *grub_multiboot_relocator = NULL;
+ grub_uint32_t grub_multiboot_payload_eip;
+ #if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_MULTIBOOT) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU)
+ #define DEFAULT_VIDEO_MODE "text"
+ #else
+ #define DEFAULT_VIDEO_MODE "auto"
+ #endif
+
+ static int accepts_video;
+ static int accepts_ega_text;
+ static int console_required;
+ static grub_dl_t my_mod;
+
+
+ /* Return the length of the Multiboot mmap that will be needed to allocate
+ our platform's map. */
+ grub_uint32_t
+ grub_get_multiboot_mmap_count (void)
+ {
+ grub_size_t count = 0;
+
+ auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, grub_uint32_t);
+ int NESTED_FUNC_ATTR hook (grub_uint64_t addr __attribute__ ((unused)),
+ grub_uint64_t size __attribute__ ((unused)),
+ grub_uint32_t type __attribute__ ((unused)))
+ {
+ count++;
+ return 0;
+ }
+
+ grub_mmap_iterate (hook);
+
+ return count;
+ }
+
+ grub_err_t
+ grub_multiboot_set_video_mode (void)
+ {
+ grub_err_t err;
+ const char *modevar;
+
+ if (accepts_video || !GRUB_MACHINE_HAS_VGA_TEXT)
+ {
+ modevar = grub_env_get ("gfxpayload");
+ if (! modevar || *modevar == 0)
+ err = grub_video_set_mode (DEFAULT_VIDEO_MODE, 0, 0);
+ else
+ {
+ char *tmp;
+ tmp = grub_xasprintf ("%s;" DEFAULT_VIDEO_MODE, modevar);
+ if (! tmp)
+ return grub_errno;
+ err = grub_video_set_mode (tmp, 0, 0);
+ grub_free (tmp);
+ }
+ }
+ else
+ err = grub_video_set_mode ("text", 0, 0);
+
+ return err;
+ }
+
+ static grub_err_t
+ grub_multiboot_boot (void)
+ {
+ grub_err_t err;
+ struct grub_relocator32_state state = MULTIBOOT_INITIAL_STATE;
+
+ state.MULTIBOOT_ENTRY_REGISTER = grub_multiboot_payload_eip;
+
+ err = grub_multiboot_make_mbi (&state.MULTIBOOT_MBI_REGISTER);
+
+ if (err)
+ return err;
+
+ #ifdef GRUB_MACHINE_EFI
+ err = grub_efi_finish_boot_services (NULL, NULL, NULL, NULL, NULL);
+ if (err)
+ return err;
+ #endif
+
+ grub_relocator32_boot (grub_multiboot_relocator, state);
+
+ /* Not reached. */
+ return GRUB_ERR_NONE;
+ }
+
+ static grub_err_t
+ grub_multiboot_unload (void)
+ {
+ grub_multiboot_free_mbi ();
+
+ grub_relocator_unload (grub_multiboot_relocator);
+ grub_multiboot_relocator = NULL;
+
+ grub_dl_unref (my_mod);
+
+ return GRUB_ERR_NONE;
+ }
+
+ #define MULTIBOOT_LOAD_ELF64
+ #include "multiboot_elfxx.c"
+ #undef MULTIBOOT_LOAD_ELF64
+
+ #define MULTIBOOT_LOAD_ELF32
+ #include "multiboot_elfxx.c"
+ #undef MULTIBOOT_LOAD_ELF32
+
+ /* Load ELF32 or ELF64. */
+ grub_err_t
+ grub_multiboot_load_elf (grub_file_t file, void *buffer)
+ {
+ if (grub_multiboot_is_elf32 (buffer))
+ return grub_multiboot_load_elf32 (file, buffer);
+ else if (grub_multiboot_is_elf64 (buffer))
+ return grub_multiboot_load_elf64 (file, buffer);
+
+ return grub_error (GRUB_ERR_UNKNOWN_OS, "unknown ELF class");
+ }
+
+ grub_err_t
+ grub_multiboot_set_console (int console_type, int accepted_consoles,
+ int width, int height, int depth,
+ int console_req)
+ {
+ console_required = console_req;
+ if (!(accepted_consoles
+ & (GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER
+ | (GRUB_MACHINE_HAS_VGA_TEXT ? GRUB_MULTIBOOT_CONSOLE_EGA_TEXT : 0))))
+ {
+ if (console_required)
+ return grub_error (GRUB_ERR_BAD_OS,
+ "OS requires a console but none is available");
+ grub_printf ("WARNING: no console will be available to OS");
+ accepts_video = 0;
+ accepts_ega_text = 0;
+ return GRUB_ERR_NONE;
+ }
+
+ if (console_type == GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER)
+ {
+ char *buf;
+ if (depth && width && height)
+ buf = grub_xasprintf ("%dx%dx%d,%dx%d,auto", width,
+ height, depth, width, height);
+ else if (width && height)
+ buf = grub_xasprintf ("%dx%d,auto", width, height);
+ else
+ buf = grub_strdup ("auto");
+
+ if (!buf)
+ return grub_errno;
+ grub_env_set ("gfxpayload", buf);
+ grub_free (buf);
+ }
+ else
+ grub_env_set ("gfxpayload", "text");
+
+ accepts_video = !!(accepted_consoles & GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER);
+ accepts_ega_text = !!(accepted_consoles & GRUB_MULTIBOOT_CONSOLE_EGA_TEXT);
+ return GRUB_ERR_NONE;
+ }
+
+ static grub_err_t
+ grub_cmd_multiboot (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+ {
+ grub_file_t file = 0;
+ grub_err_t err;
+
+ grub_loader_unset ();
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "no kernel specified");
+
+ file = grub_file_open (argv[0]);
+ if (! file)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "couldn't open file");
+
+ grub_dl_ref (my_mod);
+
+ /* Skip filename. */
+ grub_multiboot_init_mbi (argc - 1, argv + 1);
+
+ grub_relocator_unload (grub_multiboot_relocator);
+ grub_multiboot_relocator = grub_relocator_new ();
+
+ if (!grub_multiboot_relocator)
+ goto fail;
+
+ err = grub_multiboot_load (file);
+ if (err)
+ goto fail;
+
+ grub_multiboot_set_bootdev ();
+
+ grub_loader_set (grub_multiboot_boot, grub_multiboot_unload, 0);
+
+ fail:
+ if (file)
+ grub_file_close (file);
+
+ if (grub_errno != GRUB_ERR_NONE)
+ {
+ grub_relocator_unload (grub_multiboot_relocator);
+ grub_multiboot_relocator = NULL;
+ grub_dl_unref (my_mod);
+ }
+
+ return grub_errno;
+ }
+
+ static grub_err_t
+ grub_cmd_module (grub_command_t cmd __attribute__ ((unused)),
+ int argc, char *argv[])
+ {
+ grub_file_t file = 0;
+ grub_ssize_t size;
+ void *module = NULL;
+ grub_addr_t target;
+ grub_err_t err;
+ int nounzip = 0;
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified");
+
+ if (grub_strcmp (argv[0], "--nounzip") == 0)
+ {
+ argv++;
+ argc--;
+ nounzip = 1;
+ }
+
+ if (argc == 0)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified");
+
+ if (!grub_multiboot_relocator)
+ return grub_error (GRUB_ERR_BAD_ARGUMENT,
+ "you need to load the multiboot kernel first");
+
+ if (nounzip)
+ grub_file_filter_disable_compression ();
+
+ file = grub_file_open (argv[0]);
+ if (! file)
+ return grub_errno;
+
+ size = grub_file_size (file);
+ {
+ grub_relocator_chunk_t ch;
+ err = grub_relocator_alloc_chunk_align (grub_multiboot_relocator, &ch,
+ 0, (0xffffffff - size) + 1,
+ size, MULTIBOOT_MOD_ALIGN,
+ GRUB_RELOCATOR_PREFERENCE_NONE);
+ if (err)
+ {
+ grub_file_close (file);
+ return err;
+ }
+ module = get_virtual_current_address (ch);
+ target = (grub_addr_t) get_virtual_current_address (ch);
+ }
+
+ err = grub_multiboot_add_module (target, size, argc - 1, argv + 1);
+ if (err)
+ {
+ grub_file_close (file);
+ return err;
+ }
+
+ if (grub_file_read (file, module, size) != size)
+ {
+ grub_file_close (file);
+ return grub_error (GRUB_ERR_FILE_READ_ERROR, "couldn't read file");
+ }
+
+ grub_file_close (file);
+ return GRUB_ERR_NONE;;
+ }
+
+ static grub_command_t cmd_multiboot, cmd_module;
+
+ GRUB_MOD_INIT(multiboot)
+ {
+ cmd_multiboot =
+ #ifdef GRUB_USE_MULTIBOOT2
+ grub_register_command ("multiboot2", grub_cmd_multiboot,
+ 0, N_("Load a multiboot 2 kernel."));
+ cmd_module =
+ grub_register_command ("module2", grub_cmd_module,
+ 0, N_("Load a multiboot 2 module."));
+ #else
+ grub_register_command ("multiboot", grub_cmd_multiboot,
+ 0, N_("Load a multiboot kernel."));
+ cmd_module =
+ grub_register_command ("module", grub_cmd_module,
+ 0, N_("Load a multiboot module."));
+ #endif
+
+ my_mod = mod;
+ }
+
+ GRUB_MOD_FINI(multiboot)
+ {
+ grub_unregister_command (cmd_multiboot);
+ grub_unregister_command (cmd_module);
+ }
projects / thirdparty / grub.git / commitdiff
