diff --git a/ChangeLog.tag b/ChangeLog.tag new file mode 100644 index 000000000..dbeea1017 --- /dev/null +++ b/ChangeLog.tag @@ -0,0 +1,40 @@ +2010-01-16 Vladimir Serbinenko + + Multiboot2 tag support + + * conf/i386.rmk (multiboot2_mod_SOURCES): Replace + loader/i386/multiboot_mbi.c with loader/i386/multiboot_mbi2.c. + * include/grub/i386/multiboot.h (grub_multiboot_real_boot): Removed. + (grub_multiboot2_real_boot): Likewise. + * include/grub/multiboot.h (grub_multiboot_set_accepts_video): Removed. + (grub_get_multiboot_mmap_len): New proto. + (grub_fill_multiboot_mmap): Likewise. + (grub_multiboot_set_video_mode): Likewise. + (grub_multiboot_fill_vbe_info_real): Likewise. + * include/multiboot2.h: Resynced with specification. + * loader/i386/multiboot_mbi.c (DEFAULT_VIDEO_MODE): Moved from here... + * loader/i386/multiboot.c (DEFAULT_VIDEO_MODE): ... here. + * loader/i386/multiboot_mbi.c (HAS_VGA_TEXT): Moved from here .. + * include/grub/multiboot.h (GRUB_MACHINE_HAS_VGA_TEXT): ... here. All + users updated. + * loader/i386/multiboot_mbi.c (HAS_VBE): Moved from here .. + * include/grub/multiboot.h (GRUB_MACHINE_HAS_VBE): ... here. All + users updated. + * loader/i386/multiboot_mbi.c (accepts_video): Moved from here... + * loader/i386/multiboot.c (accepts_video): ... here. All users updated. + * loader/i386/multiboot_mbi.c (grub_multiboot_set_accepts_video): + Removed. + * loader/i386/multiboot_mbi.c (grub_get_multiboot_mmap_len): + Moved from here... + * loader/i386/multiboot.c (grub_get_multiboot_mmap_len): ... here. + * loader/i386/multiboot_mbi.c (grub_fill_multiboot_mmap): + Moved from here... + * loader/i386/multiboot.c (grub_fill_multiboot_mmap): ... here. + * loader/i386/multiboot_mbi.c (set_video_mode): Moved from here... + * loader/i386/multiboot.c (grub_multiboot_set_video_mode): ... here. + All users updated. + * loader/i386/multiboot_mbi.c (fill_vbe_info): Moved generic parts + from here... + * loader/i386/multiboot.c (grub_multiboot_fill_vbe_info_real): ... here. + All users updated. + * loader/i386/multiboot_mbi2.c: New file. diff --git a/conf/i386.rmk b/conf/i386.rmk index 7ef337c61..064ee3ab4 100644 --- a/conf/i386.rmk +++ b/conf/i386.rmk @@ -36,7 +36,7 @@ multiboot_mod_ASFLAGS = $(COMMON_ASFLAGS) pkglib_MODULES += multiboot2.mod multiboot2_mod_SOURCES = loader/i386/multiboot.c \ - loader/i386/multiboot_mbi.c \ + loader/i386/multiboot_mbi2.c \ loader/multiboot_loader.c multiboot2_mod_CFLAGS = $(COMMON_CFLAGS) -DGRUB_USE_MULTIBOOT2 multiboot2_mod_LDFLAGS = $(COMMON_LDFLAGS) diff --git a/include/grub/i386/multiboot.h b/include/grub/i386/multiboot.h index 584955449..8131e9477 100644 --- a/include/grub/i386/multiboot.h +++ b/include/grub/i386/multiboot.h @@ -19,14 +19,6 @@ #ifndef GRUB_MULTIBOOT_CPU_HEADER #define GRUB_MULTIBOOT_CPU_HEADER 1 -/* The asm part of the multiboot loader. */ -void grub_multiboot_real_boot (grub_addr_t entry, - struct multiboot_info *mbi) - __attribute__ ((noreturn)); -void grub_multiboot2_real_boot (grub_addr_t entry, - struct multiboot_info *mbi) - __attribute__ ((noreturn)); - extern grub_uint32_t grub_multiboot_payload_eip; extern char *grub_multiboot_payload_orig; extern grub_addr_t grub_multiboot_payload_dest; diff --git a/include/grub/multiboot.h b/include/grub/multiboot.h index 665292e33..8a7289820 100644 --- a/include/grub/multiboot.h +++ b/include/grub/multiboot.h @@ -35,8 +35,6 @@ void grub_multiboot (int argc, char *argv[]); void grub_module (int argc, char *argv[]); -void grub_multiboot_set_accepts_video (int val); - grub_size_t grub_multiboot_get_mbi_size (void); grub_err_t grub_multiboot_make_mbi (void *orig, grub_uint32_t dest, grub_off_t buf_off, grub_size_t bufsize); @@ -46,5 +44,24 @@ grub_err_t grub_multiboot_add_module (grub_addr_t start, grub_size_t size, int argc, char *argv[]); void grub_multiboot_set_bootdev (void); +grub_uint32_t grub_get_multiboot_mmap_len (void); +void grub_fill_multiboot_mmap (struct multiboot_mmap_entry *first_entry); +grub_err_t grub_multiboot_set_video_mode (void); + +#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU) +#include +grub_err_t +grub_multiboot_fill_vbe_info_real (struct grub_vbe_info_block *vbe_control_info, + struct grub_vbe_mode_info_block *vbe_mode_info, + multiboot_uint16_t *vbe_mode, + multiboot_uint16_t *vbe_interface_seg, + multiboot_uint16_t *vbe_interface_off, + multiboot_uint16_t *vbe_interface_len); +#define GRUB_MACHINE_HAS_VBE 1 +#define GRUB_MACHINE_HAS_VGA_TEXT 1 +#else +#define GRUB_MACHINE_HAS_VBE 0 +#define GRUB_MACHINE_HAS_VGA_TEXT 0 +#endif #endif /* ! GRUB_MULTIBOOT_HEADER */ diff --git a/include/multiboot2.h b/include/multiboot2.h index a241a70ad..a76364fa7 100644 --- a/include/multiboot2.h +++ b/include/multiboot2.h @@ -51,42 +51,15 @@ /* This flag indicates the use of the address fields in the header. */ #define MULTIBOOT_AOUT_KLUDGE 0x00010000 -/* Flags to be set in the 'flags' member of the multiboot info structure. */ - -/* is there basic lower/upper memory information? */ -#define MULTIBOOT_INFO_MEMORY 0x00000001 -/* is there a boot device set? */ -#define MULTIBOOT_INFO_BOOTDEV 0x00000002 -/* is the command-line defined? */ -#define MULTIBOOT_INFO_CMDLINE 0x00000004 -/* are there modules to do something with? */ -#define MULTIBOOT_INFO_MODS 0x00000008 - -/* These next two are mutually exclusive */ - -/* is there a symbol table loaded? */ -#define MULTIBOOT_INFO_AOUT_SYMS 0x00000010 -/* is there an ELF section header table? */ -#define MULTIBOOT_INFO_ELF_SHDR 0X00000020 - -/* is there a full memory map? */ -#define MULTIBOOT_INFO_MEM_MAP 0x00000040 - -/* Is there drive info? */ -#define MULTIBOOT_INFO_DRIVE_INFO 0x00000080 - -/* Is there a config table? */ -#define MULTIBOOT_INFO_CONFIG_TABLE 0x00000100 - -/* Is there a boot loader name? */ -#define MULTIBOOT_INFO_BOOT_LOADER_NAME 0x00000200 - -/* Is there a APM table? */ -#define MULTIBOOT_INFO_APM_TABLE 0x00000400 - -/* Is there video information? */ -#define MULTIBOOT_INFO_VBE_INFO 0x00000800 -#define MULTIBOOT_INFO_FRAMEBUFFER_INFO 0x00001000 +#define MULTIBOOT_TAG_TYPE_END 0 +#define MULTIBOOT_TAG_TYPE_CMDLINE 1 +#define MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME 2 +#define MULTIBOOT_TAG_TYPE_MODULE 3 +#define MULTIBOOT_TAG_TYPE_BASIC_MEMINFO 4 +#define MULTIBOOT_TAG_TYPE_BOOTDEV 5 +#define MULTIBOOT_TAG_TYPE_MMAP 6 +#define MULTIBOOT_TAG_TYPE_VBE 7 +#define MULTIBOOT_TAG_TYPE_FRAMEBUFFER 8 #ifndef ASM_FILE @@ -120,105 +93,6 @@ struct multiboot_header multiboot_uint32_t depth; }; -/* The symbol table for a.out. */ -struct multiboot_aout_symbol_table -{ - multiboot_uint32_t tabsize; - multiboot_uint32_t strsize; - multiboot_uint32_t addr; - multiboot_uint32_t reserved; -}; -typedef struct multiboot_aout_symbol_table multiboot_aout_symbol_table_t; - -/* The section header table for ELF. */ -struct multiboot_elf_section_header_table -{ - multiboot_uint32_t num; - multiboot_uint32_t size; - multiboot_uint32_t addr; - multiboot_uint32_t shndx; -}; -typedef struct multiboot_elf_section_header_table multiboot_elf_section_header_table_t; - -struct multiboot_info -{ - /* Multiboot info version number */ - multiboot_uint32_t flags; - - /* Available memory from BIOS */ - multiboot_uint32_t mem_lower; - multiboot_uint32_t mem_upper; - - /* "root" partition */ - multiboot_uint32_t boot_device; - - /* Kernel command line */ - multiboot_uint32_t cmdline; - - /* Boot-Module list */ - multiboot_uint32_t mods_count; - multiboot_uint32_t mods_addr; - - union - { - multiboot_aout_symbol_table_t aout_sym; - multiboot_elf_section_header_table_t elf_sec; - } u; - - /* Memory Mapping buffer */ - multiboot_uint32_t mmap_length; - multiboot_uint32_t mmap_addr; - - /* Drive Info buffer */ - multiboot_uint32_t drives_length; - multiboot_uint32_t drives_addr; - - /* ROM configuration table */ - multiboot_uint32_t config_table; - - /* Boot Loader Name */ - multiboot_uint32_t boot_loader_name; - - /* APM table */ - multiboot_uint32_t apm_table; - - /* Video */ - multiboot_uint32_t vbe_control_info; - multiboot_uint32_t vbe_mode_info; - multiboot_uint16_t vbe_mode; - multiboot_uint16_t vbe_interface_seg; - multiboot_uint16_t vbe_interface_off; - multiboot_uint16_t vbe_interface_len; - - multiboot_uint64_t framebuffer_addr; - multiboot_uint32_t framebuffer_pitch; - multiboot_uint32_t framebuffer_width; - multiboot_uint32_t framebuffer_height; - multiboot_uint8_t framebuffer_bpp; -#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0 -#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1 -#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2 - multiboot_uint8_t framebuffer_type; - union - { - struct - { - multiboot_uint32_t framebuffer_palette_addr; - multiboot_uint16_t framebuffer_palette_num_colors; - }; - struct - { - multiboot_uint8_t framebuffer_red_field_position; - multiboot_uint8_t framebuffer_red_mask_size; - multiboot_uint8_t framebuffer_green_field_position; - multiboot_uint8_t framebuffer_green_mask_size; - multiboot_uint8_t framebuffer_blue_field_position; - multiboot_uint8_t framebuffer_blue_mask_size; - }; - }; -}; -typedef struct multiboot_info multiboot_info_t; - struct multiboot_color { multiboot_uint8_t red; @@ -237,19 +111,114 @@ struct multiboot_mmap_entry } __attribute__((packed)); typedef struct multiboot_mmap_entry multiboot_memory_map_t; -struct multiboot_mod_list +struct multiboot_tag { - /* the memory used goes from bytes 'mod_start' to 'mod_end-1' inclusive */ + multiboot_uint32_t type; + multiboot_uint32_t size; +}; + +struct multiboot_tag_string +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + char string[0]; +}; + +struct multiboot_tag_module +{ + multiboot_uint32_t type; + multiboot_uint32_t size; multiboot_uint32_t mod_start; multiboot_uint32_t mod_end; - - /* Module command line */ - multiboot_uint32_t cmdline; - - /* padding to take it to 16 bytes (must be zero) */ - multiboot_uint32_t pad; + char cmdline[0]; +}; + +struct multiboot_tag_basic_meminfo +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t mem_lower; + multiboot_uint32_t mem_upper; +}; + +struct multiboot_tag_bootdev +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + multiboot_uint32_t biosdev; + multiboot_uint32_t slice; + multiboot_uint32_t part; +}; + +struct multiboot_tag_mmap +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + struct multiboot_mmap_entry entries[0]; +}; + +struct multiboot_vbe_info_block +{ + multiboot_uint8_t external_specification[512]; +}; + +struct multiboot_vbe_mode_info_block +{ + multiboot_uint8_t external_specification[256]; +}; + +struct multiboot_tag_vbe +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + + multiboot_uint16_t vbe_mode; + multiboot_uint16_t vbe_interface_seg; + multiboot_uint16_t vbe_interface_off; + multiboot_uint16_t vbe_interface_len; + + struct multiboot_vbe_info_block vbe_control_info; + struct multiboot_vbe_mode_info_block vbe_mode_info; +}; + +struct multiboot_tag_framebuffer_common +{ + multiboot_uint32_t type; + multiboot_uint32_t size; + + multiboot_uint64_t framebuffer_addr; + multiboot_uint32_t framebuffer_pitch; + multiboot_uint32_t framebuffer_width; + multiboot_uint32_t framebuffer_height; + multiboot_uint8_t framebuffer_bpp; +#define MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED 0 +#define MULTIBOOT_FRAMEBUFFER_TYPE_RGB 1 +#define MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT 2 + multiboot_uint8_t framebuffer_type; +}; + +struct multiboot_tag_framebuffer +{ + struct multiboot_tag_framebuffer_common common; + + union + { + struct + { + multiboot_uint16_t framebuffer_palette_num_colors; + struct multiboot_color framebuffer_palette[0]; + }; + struct + { + multiboot_uint8_t framebuffer_red_field_position; + multiboot_uint8_t framebuffer_red_mask_size; + multiboot_uint8_t framebuffer_green_field_position; + multiboot_uint8_t framebuffer_green_mask_size; + multiboot_uint8_t framebuffer_blue_field_position; + multiboot_uint8_t framebuffer_blue_mask_size; + }; + }; }; -typedef struct multiboot_mod_list multiboot_module_t; #endif /* ! ASM_FILE */ diff --git a/loader/i386/multiboot.c b/loader/i386/multiboot.c index 0ac3ca339..86bb91ec8 100644 --- a/loader/i386/multiboot.c +++ b/loader/i386/multiboot.c @@ -44,11 +44,18 @@ #include #include #include +#include #ifdef GRUB_MACHINE_EFI #include #endif +#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU) +#define DEFAULT_VIDEO_MODE "text" +#else +#define DEFAULT_VIDEO_MODE "auto" +#endif + extern grub_dl_t my_mod; static grub_size_t code_size, alloc_mbi; @@ -56,6 +63,135 @@ char *grub_multiboot_payload_orig; grub_addr_t grub_multiboot_payload_dest; grub_size_t grub_multiboot_pure_size; grub_uint32_t grub_multiboot_payload_eip; +static int accepts_video; + +/* Return the length of the Multiboot mmap that will be needed to allocate + our platform's map. */ +grub_uint32_t +grub_get_multiboot_mmap_len (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 * sizeof (struct multiboot_mmap_entry); +} + +/* Fill previously allocated Multiboot mmap. */ +void +grub_fill_multiboot_mmap (struct multiboot_mmap_entry *first_entry) +{ + struct multiboot_mmap_entry *mmap_entry = (struct multiboot_mmap_entry *) first_entry; + + auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, grub_uint32_t); + int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size, grub_uint32_t type) + { + mmap_entry->addr = addr; + mmap_entry->len = size; + switch (type) + { + case GRUB_MACHINE_MEMORY_AVAILABLE: + mmap_entry->type = MULTIBOOT_MEMORY_AVAILABLE; + break; + + default: + mmap_entry->type = MULTIBOOT_MEMORY_RESERVED; + break; + } + mmap_entry->size = sizeof (struct multiboot_mmap_entry) - sizeof (mmap_entry->size); + mmap_entry++; + + return 0; + } + + grub_mmap_iterate (hook); +} + +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); + 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 GRUB_MACHINE_HAS_VBE +grub_err_t +grub_multiboot_fill_vbe_info_real (struct grub_vbe_info_block *vbe_control_info, + struct grub_vbe_mode_info_block *vbe_mode_info, + multiboot_uint16_t *vbe_mode, + multiboot_uint16_t *vbe_interface_seg, + multiboot_uint16_t *vbe_interface_off, + multiboot_uint16_t *vbe_interface_len) +{ + grub_vbe_status_t status; + void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR; + + 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."); + grub_memcpy (vbe_control_info, scratch, 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"); + + /* get_mode_info isn't available for mode 3. */ + if (*vbe_mode == 3) + { + grub_memset (vbe_mode_info, 0, sizeof (struct grub_vbe_mode_info_block)); + vbe_mode_info->memory_model = GRUB_VBE_MEMORY_MODEL_TEXT; + vbe_mode_info->x_resolution = 80; + vbe_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 (vbe_mode_info, scratch, + sizeof (struct grub_vbe_mode_info_block)); + } + + /* FIXME: retrieve those. */ + *vbe_interface_seg = 0; + *vbe_interface_off = 0; + *vbe_interface_len = 0; + + return GRUB_ERR_NONE; +} +#endif static grub_err_t grub_multiboot_boot (void) @@ -265,7 +401,7 @@ grub_multiboot (int argc, char *argv[]) } } - grub_multiboot_set_accepts_video (!!(header->flags & MULTIBOOT_VIDEO_MODE)); + accepts_video = !!(header->flags & MULTIBOOT_VIDEO_MODE); grub_multiboot_set_bootdev (); diff --git a/loader/i386/multiboot_mbi.c b/loader/i386/multiboot_mbi.c index ddbbf3cfd..9c45b3352 100644 --- a/loader/i386/multiboot_mbi.c +++ b/loader/i386/multiboot_mbi.c @@ -31,17 +31,6 @@ #include #include -#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU) -#include -#define DEFAULT_VIDEO_MODE "text" -#define HAS_VGA_TEXT 1 -#define HAS_VBE 1 -#else -#define DEFAULT_VIDEO_MODE "auto" -#define HAS_VGA_TEXT 0 -#define HAS_VBE 0 -#endif - struct module { struct module *next; @@ -58,34 +47,6 @@ static unsigned modcnt; static char *cmdline = NULL; static grub_uint32_t bootdev; static int bootdev_set; -static int accepts_video; - -void -grub_multiboot_set_accepts_video (int val) -{ - accepts_video = val; -} - -/* Return the length of the Multiboot mmap that will be needed to allocate - our platform's map. */ -static grub_uint32_t -grub_get_multiboot_mmap_len (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 * sizeof (struct multiboot_mmap_entry); -} grub_size_t grub_multiboot_get_mbi_size (void) @@ -93,142 +54,45 @@ grub_multiboot_get_mbi_size (void) 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 () -#if HAS_VBE +#if GRUB_MACHINE_HAS_VBE + sizeof (struct grub_vbe_info_block) + sizeof (struct grub_vbe_mode_info_block) #endif + 256 * sizeof (struct multiboot_color); } -/* Fill previously allocated Multiboot mmap. */ -static void -grub_fill_multiboot_mmap (struct multiboot_mmap_entry *first_entry) -{ - struct multiboot_mmap_entry *mmap_entry = (struct multiboot_mmap_entry *) first_entry; - - auto int NESTED_FUNC_ATTR hook (grub_uint64_t, grub_uint64_t, grub_uint32_t); - int NESTED_FUNC_ATTR hook (grub_uint64_t addr, grub_uint64_t size, grub_uint32_t type) - { - mmap_entry->addr = addr; - mmap_entry->len = size; - switch (type) - { - case GRUB_MACHINE_MEMORY_AVAILABLE: - mmap_entry->type = MULTIBOOT_MEMORY_AVAILABLE; - break; - - default: - mmap_entry->type = MULTIBOOT_MEMORY_RESERVED; - break; - } - mmap_entry->size = sizeof (struct multiboot_mmap_entry) - sizeof (mmap_entry->size); - mmap_entry++; - - return 0; - } - - grub_mmap_iterate (hook); -} - +#if GRUB_MACHINE_HAS_VBE static grub_err_t -set_video_mode (void) +fill_vbe_info (struct multiboot_info *mbi, + struct grub_vbe_mode_info_block **vbe_mode_info_out, + grub_uint8_t *ptrorig, grub_addr_t ptrdest) { + struct grub_vbe_info_block *vbe_control_info; + struct grub_vbe_mode_info_block *vbe_mode_info; 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."); - + vbe_control_info = (struct grub_vbe_info_block *) ptrorig; 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; + vbe_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; + err = grub_multiboot_fill_vbe_info_real (vbe_control_info, vbe_mode_info, + &mbi->vbe_mode, + &mbi->vbe_interface_seg, + &mbi->vbe_interface_off, + &mbi->vbe_interface_len); + if (err) + return err; 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; - } - + if (vbe_mode_info_out) + *vbe_mode_info_out = vbe_mode_info; return GRUB_ERR_NONE; } + #endif static grub_err_t @@ -241,7 +105,7 @@ retrieve_video_parameters (struct multiboot_info *mbi, grub_video_driver_id_t driv_id; struct grub_video_palette_data palette[256]; - err = set_video_mode (); + err = grub_multiboot_set_video_mode (); if (err) { grub_print_error (); @@ -251,9 +115,29 @@ retrieve_video_parameters (struct multiboot_info *mbi, 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); + { + struct grub_vbe_mode_info_block *vbe_mode_info; + err = fill_vbe_info (mbi, &vbe_mode_info, ptrorig, ptrdest); + if (err) + return err; + if (vbe_mode_info->memory_model == GRUB_VBE_MEMORY_MODEL_TEXT) + { + mbi->framebuffer_addr = 0xb8000; + + mbi->framebuffer_pitch = 2 * vbe_mode_info->x_resolution; + mbi->framebuffer_width = vbe_mode_info->x_resolution; + mbi->framebuffer_height = vbe_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; + } #else if (driv_id == GRUB_VIDEO_DRIVER_NONE) return GRUB_ERR_NONE; @@ -305,9 +189,13 @@ retrieve_video_parameters (struct multiboot_info *mbi, 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); + { + err = fill_vbe_info (mbi, NULL, ptrorig, ptrdest); + if (err) + return err; + } #endif return GRUB_ERR_NONE; @@ -396,7 +284,7 @@ grub_multiboot_make_mbi (void *orig, grub_uint32_t dest, grub_off_t buf_off, 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); diff --git a/loader/i386/multiboot_mbi2.c b/loader/i386/multiboot_mbi2.c new file mode 100644 index 000000000..031d4c0eb --- /dev/null +++ b/loader/i386/multiboot_mbi2.c @@ -0,0 +1,468 @@ +/* + * GRUB -- GRand Unified Bootloader + * Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2007,2008,2009 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 . + */ + +#include +#include +#ifdef GRUB_MACHINE_PCBIOS +#include +#endif +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#if defined (GRUB_MACHINE_PCBIOS) || defined (GRUB_MACHINE_COREBOOT) || defined (GRUB_MACHINE_QEMU) +#include +#define DEFAULT_VIDEO_MODE "text" +#define HAS_VGA_TEXT 1 +#define HAS_VBE 1 +#else +#define DEFAULT_VIDEO_MODE "auto" +#define HAS_VGA_TEXT 0 +#define HAS_VBE 0 +#endif + +struct module +{ + struct module *next; + grub_addr_t start; + grub_size_t size; + char *cmdline; + int cmdline_size; +}; + +struct module *modules, *modules_last; +static grub_size_t cmdline_size; +static grub_size_t total_modcmd; +static unsigned modcnt; +static char *cmdline = NULL; +static int bootdev_set; +static grub_uint32_t biosdev, slice, part; + +grub_size_t +grub_multiboot_get_mbi_size (void) +{ + return sizeof (struct multiboot_tag) + + (sizeof (struct multiboot_tag_string) + ALIGN_UP (cmdline_size, 4)) + + (sizeof (struct multiboot_tag_string) + + ALIGN_UP (sizeof (PACKAGE_STRING), 4)) + + (modcnt * sizeof (struct multiboot_tag_module) + total_modcmd) + + sizeof (struct multiboot_tag_basic_meminfo) + + sizeof (struct multiboot_tag_bootdev) + + (sizeof (struct multiboot_tag_mmap) + grub_get_multiboot_mmap_len ()) + + sizeof (struct multiboot_tag_vbe); +} + +#ifdef GRUB_MACHINE_HAS_VBE + +static grub_err_t +fill_vbe_info (struct grub_vbe_mode_info_block **vbe_mode_info_out, + grub_uint8_t **ptrorig) +{ + struct multiboot_tag_vbe *tag = (struct multiboot_tag_vbe *) *ptrorig; + grub_err_t err; + + tag->type = MULTIBOOT_TAG_TYPE_VBE; + tag->size = 0; + err = grub_multiboot_fill_vbe_info_real ((struct grub_vbe_info_block *) + &(tag->vbe_control_info), + (struct grub_vbe_mode_info_block *) + &(tag->vbe_mode_info), + &(tag->vbe_mode), + &(tag->vbe_interface_seg), + &(tag->vbe_interface_off), + &(tag->vbe_interface_len)); + if (err) + return err; + if (vbe_mode_info_out) + *vbe_mode_info_out = (struct grub_vbe_mode_info_block *) + &(tag->vbe_mode_info); + tag->size = sizeof (struct multiboot_tag_vbe); + *ptrorig += tag->size; + return GRUB_ERR_NONE; +} + +#endif + +static grub_err_t +retrieve_video_parameters (grub_uint8_t **ptrorig) +{ + grub_err_t err; + struct grub_video_mode_info mode_info; + void *framebuffer; + grub_video_driver_id_t driv_id; + struct grub_video_palette_data palette[256]; + struct multiboot_tag_framebuffer *tag + = (struct multiboot_tag_framebuffer *) *ptrorig; + + err = grub_multiboot_set_video_mode (); + if (err) + { + grub_print_error (); + grub_errno = GRUB_ERR_NONE; + } + + grub_video_get_palette (0, ARRAY_SIZE (palette), palette); + + driv_id = grub_video_get_driver_id (); +#if HAS_VGA_TEXT + if (driv_id == GRUB_VIDEO_DRIVER_NONE) + { + struct grub_vbe_mode_info_block *vbe_mode_info; + err = fill_vbe_info (&vbe_mode_info, ptrorig); + if (err) + return err; + if (vbe_mode_info->memory_model == GRUB_VBE_MEMORY_MODEL_TEXT) + { + tag = (struct multiboot_tag_framebuffer *) *ptrorig; + tag->common.type = MULTIBOOT_TAG_TYPE_FRAMEBUFFER; + tag->common.size = 0; + + tag->common.framebuffer_addr = 0xb8000; + + tag->common.framebuffer_pitch = 2 * vbe_mode_info->x_resolution; + tag->common.framebuffer_width = vbe_mode_info->x_resolution; + tag->common.framebuffer_height = vbe_mode_info->y_resolution; + + tag->common.framebuffer_bpp = 16; + + tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT; + tag->common.size = sizeof (tag->common); + *ptrorig += tag->common.size; + } + return GRUB_ERR_NONE; + } +#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) + return err; + + tag = (struct multiboot_tag_framebuffer *) *ptrorig; + tag->common.type = MULTIBOOT_TAG_TYPE_FRAMEBUFFER; + tag->common.size = 0; + + tag->common.framebuffer_addr = (grub_addr_t) framebuffer; + tag->common.framebuffer_pitch = mode_info.pitch; + + tag->common.framebuffer_width = mode_info.width; + tag->common.framebuffer_height = mode_info.height; + + tag->common.framebuffer_bpp = mode_info.bpp; + + if (mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR) + { + unsigned i; + tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED; + tag->framebuffer_palette_num_colors = mode_info.number_of_colors; + if (tag->framebuffer_palette_num_colors > ARRAY_SIZE (palette)) + tag->framebuffer_palette_num_colors = ARRAY_SIZE (palette); + tag->common.size = sizeof (struct multiboot_tag_framebuffer_common) + + sizeof (multiboot_uint16_t) + tag->framebuffer_palette_num_colors + * sizeof (struct multiboot_color); + for (i = 0; i < tag->framebuffer_palette_num_colors; i++) + { + tag->framebuffer_palette[i].red = palette[i].r; + tag->framebuffer_palette[i].green = palette[i].g; + tag->framebuffer_palette[i].blue = palette[i].b; + } + *ptrorig += tag->common.size; + } + else + { + tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB; + tag->common.framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB; + tag->framebuffer_red_field_position = mode_info.green_field_pos; + tag->framebuffer_red_mask_size = mode_info.green_mask_size; + tag->framebuffer_green_field_position = mode_info.green_field_pos; + tag->framebuffer_green_mask_size = mode_info.green_mask_size; + tag->framebuffer_blue_field_position = mode_info.blue_field_pos; + tag->framebuffer_blue_mask_size = mode_info.blue_mask_size; + + tag->common.size = sizeof (struct multiboot_tag_framebuffer_common) + 6; + } + +#if HAS_VBE + if (driv_id == GRUB_VIDEO_DRIVER_VBE) + { + err = fill_vbe_info (NULL, ptrorig); + if (err) + return err; + } +#endif + + return GRUB_ERR_NONE; +} + +grub_err_t +grub_multiboot_make_mbi (void *orig, grub_uint32_t dest, grub_off_t buf_off, + grub_size_t bufsize) +{ + grub_uint8_t *ptrorig = (grub_uint8_t *) orig + buf_off; + grub_err_t err; + + if (bufsize < grub_multiboot_get_mbi_size ()) + return grub_error (GRUB_ERR_OUT_OF_MEMORY, "mbi buffer is too small"); + + { + struct multiboot_tag_string *tag = (struct multiboot_tag_string *) ptrorig; + tag->type = MULTIBOOT_TAG_TYPE_CMDLINE; + tag->size = sizeof (struct multiboot_tag_string) + + ALIGN_UP (cmdline_size, 4); + grub_memcpy (tag->string, cmdline, cmdline_size); + ptrorig += tag->size; + } + + { + struct multiboot_tag_string *tag = (struct multiboot_tag_string *) ptrorig; + tag->type = MULTIBOOT_TAG_TYPE_BOOT_LOADER_NAME; + tag->size = sizeof (struct multiboot_tag_string) + + ALIGN_UP (sizeof (PACKAGE_STRING), 4); + grub_memcpy (tag->string, PACKAGE_STRING, sizeof (PACKAGE_STRING)); + ptrorig += tag->size; + } + + { + unsigned i; + struct module *cur; + + for (i = 0, cur = modules; i < modcnt; i++, cur = cur->next) + { + struct multiboot_tag_module *tag + = (struct multiboot_tag_module *) ptrorig; + tag->type = MULTIBOOT_TAG_TYPE_MODULE; + tag->size = sizeof (struct multiboot_tag_module) + + ALIGN_UP (sizeof (cur->cmdline_size), 4); + + tag->mod_start = dest + cur->start; + tag->mod_end = tag->mod_start + cur->size; + grub_memcpy (tag->cmdline, cur->cmdline, cur->cmdline_size); + ptrorig += tag->size; + } + } + + { + struct multiboot_tag_mmap *tag = (struct multiboot_tag_mmap *) ptrorig; + tag->type = MULTIBOOT_TAG_TYPE_MMAP; + tag->size = sizeof (struct multiboot_tag_mmap) + + grub_get_multiboot_mmap_len (); + grub_fill_multiboot_mmap (tag->entries); + ptrorig += tag->size; + } + + { + struct multiboot_tag_basic_meminfo *tag + = (struct multiboot_tag_basic_meminfo *) ptrorig; + tag->type = MULTIBOOT_TAG_TYPE_BASIC_MEMINFO; + tag->size = sizeof (struct multiboot_tag_basic_meminfo); + + /* Convert from bytes to kilobytes. */ + tag->mem_lower = grub_mmap_get_lower () / 1024; + tag->mem_upper = grub_mmap_get_upper () / 1024; + ptrorig += tag->size; + } + + if (bootdev_set) + { + struct multiboot_tag_bootdev *tag + = (struct multiboot_tag_bootdev *) ptrorig; + tag->type = MULTIBOOT_TAG_TYPE_BOOTDEV; + tag->size = sizeof (struct multiboot_tag_bootdev); + + tag->biosdev = biosdev; + tag->slice = slice; + tag->part = part; + ptrorig += tag->size; + } + + { + err = retrieve_video_parameters (&ptrorig); + if (err) + { + grub_print_error (); + grub_errno = GRUB_ERR_NONE; + } + } + + { + struct multiboot_tag *tag = (struct multiboot_tag *) ptrorig; + tag->type = MULTIBOOT_TAG_TYPE_END; + tag->size = sizeof (struct multiboot_tag); + ptrorig += tag->size; + } + + return GRUB_ERR_NONE; +} + +void +grub_multiboot_free_mbi (void) +{ + struct module *cur, *next; + + cmdline_size = 0; + total_modcmd = 0; + modcnt = 0; + grub_free (cmdline); + cmdline = NULL; + bootdev_set = 0; + + for (cur = modules; cur; cur = next) + { + next = cur->next; + grub_free (cur->cmdline); + grub_free (cur); + } + modules = NULL; + modules_last = NULL; +} + +grub_err_t +grub_multiboot_init_mbi (int argc, char *argv[]) +{ + grub_ssize_t len = 0; + char *p; + int i; + + grub_multiboot_free_mbi (); + + for (i = 0; i < argc; i++) + len += grub_strlen (argv[i]) + 1; + if (len == 0) + len = 1; + + cmdline = p = grub_malloc (len); + if (! cmdline) + return grub_errno; + cmdline_size = len; + + for (i = 0; i < argc; i++) + { + p = grub_stpcpy (p, argv[i]); + *(p++) = ' '; + } + + /* Remove the space after the last word. */ + if (p != cmdline) + p--; + *p = '\0'; + + return GRUB_ERR_NONE; +} + +grub_err_t +grub_multiboot_add_module (grub_addr_t start, grub_size_t size, + int argc, char *argv[]) +{ + struct module *newmod; + char *p; + grub_ssize_t len = 0; + int i; + + newmod = grub_malloc (sizeof (*newmod)); + if (!newmod) + return grub_errno; + newmod->start = start; + newmod->size = size; + + for (i = 0; i < argc; i++) + len += grub_strlen (argv[i]) + 1; + + if (len == 0) + len = 1; + + newmod->cmdline = p = grub_malloc (len); + if (! newmod->cmdline) + { + grub_free (newmod); + return grub_errno; + } + newmod->cmdline_size = len; + total_modcmd += ALIGN_UP (len, 4); + + for (i = 0; i < argc; i++) + { + p = grub_stpcpy (p, argv[i]); + *(p++) = ' '; + } + + /* Remove the space after the last word. */ + if (p != newmod->cmdline) + p--; + *p = '\0'; + + if (modules_last) + modules_last->next = newmod; + else + { + modules = newmod; + modules_last->next = NULL; + } + modules_last = newmod; + + modcnt++; + + return GRUB_ERR_NONE; +} + +void +grub_multiboot_set_bootdev (void) +{ + char *p; + grub_device_t dev; + + slice = ~0; + part = ~0; + +#ifdef GRUB_MACHINE_PCBIOS + biosdev = grub_get_root_biosnumber (); +#else + biosdev = 0xffffffff; +#endif + + dev = grub_device_open (0); + if (dev && dev->disk && dev->disk->partition) + { + + p = dev->disk->partition->partmap->get_name (dev->disk->partition); + if (p) + { + if ((p[0] >= '0') && (p[0] <= '9')) + { + slice = grub_strtoul (p, &p, 0) - 1; + + if ((p) && (p[0] == ',')) + p++; + } + + if ((p[0] >= 'a') && (p[0] <= 'z')) + part = p[0] - 'a'; + } + } + if (dev) + grub_device_close (dev); + + bootdev_set = 1; +}