From 9efe1428614ef9d08bee26a4e739e87eaad07109 Mon Sep 17 00:00:00 2001 From: Vladimir 'phcoder' Serbinenko Date: Wed, 13 Jan 2010 17:27:45 +0100 Subject: [PATCH] Use linux.c on i386-ieee1275 --- conf/i386-ieee1275.rmk | 2 +- loader/i386/ieee1275/linux.c | 311 ----------------------------------- 2 files changed, 1 insertion(+), 312 deletions(-) delete mode 100644 loader/i386/ieee1275/linux.c diff --git a/conf/i386-ieee1275.rmk b/conf/i386-ieee1275.rmk index b9e192796..28d454ffd 100644 --- a/conf/i386-ieee1275.rmk +++ b/conf/i386-ieee1275.rmk @@ -97,7 +97,7 @@ serial_mod_CFLAGS = $(COMMON_CFLAGS) serial_mod_LDFLAGS = $(COMMON_LDFLAGS) # For linux.mod. -linux_mod_SOURCES = loader/i386/ieee1275/linux.c +linux_mod_SOURCES = loader/i386/linux.c linux_mod_CFLAGS = $(COMMON_CFLAGS) linux_mod_LDFLAGS = $(COMMON_LDFLAGS) diff --git a/loader/i386/ieee1275/linux.c b/loader/i386/ieee1275/linux.c deleted file mode 100644 index 8780804fd..000000000 --- a/loader/i386/ieee1275/linux.c +++ /dev/null @@ -1,311 +0,0 @@ -/* linux.c - boot Linux zImage or bzImage */ -/* - * 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 . - */ - -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include -#include - -#define GRUB_OFW_LINUX_PARAMS_ADDR 0x90000 -#define GRUB_OFW_LINUX_KERNEL_ADDR 0x100000 -#define GRUB_OFW_LINUX_INITRD_ADDR 0x800000 - -#define GRUB_OFW_LINUX_CL_OFFSET 0x1e00 -#define GRUB_OFW_LINUX_CL_LENGTH 0x100 - -static grub_dl_t my_mod; - -static grub_size_t kernel_size; -static char *kernel_addr, *kernel_cmdline; -static grub_size_t initrd_size; - -static grub_err_t -grub_linux_unload (void) -{ - grub_free (kernel_cmdline); - grub_free (kernel_addr); - kernel_cmdline = 0; - kernel_addr = 0; - initrd_size = 0; - - grub_dl_unref (my_mod); - - return GRUB_ERR_NONE; -} - -/* -static int -grub_ieee1275_debug (void) -{ - struct enter_args - { - struct grub_ieee1275_common_hdr common; - } - args; - - INIT_IEEE1275_COMMON (&args.common, "enter", 0, 0); - - if (IEEE1275_CALL_ENTRY_FN (&args) == -1) - return -1; - - return 0; -} -*/ - -static grub_err_t -grub_linux_boot (void) -{ - struct linux_kernel_params *params; - struct linux_kernel_header *lh; - char *prot_code; - char *bootpath; - grub_ssize_t len; - - bootpath = grub_env_get ("root"); - if (bootpath) - grub_ieee1275_set_property (grub_ieee1275_chosen, - "bootpath", bootpath, - grub_strlen (bootpath) + 1, - &len); - - params = (struct linux_kernel_params *) GRUB_OFW_LINUX_PARAMS_ADDR; - lh = (struct linux_kernel_header *) params; - - grub_memset ((char *) params, 0, GRUB_OFW_LINUX_CL_OFFSET); - - params->alt_mem = grub_mmap_get_upper () >> 10; - params->ext_mem = params->alt_mem; - - lh->cmd_line_ptr = (char *) - (GRUB_OFW_LINUX_PARAMS_ADDR + GRUB_OFW_LINUX_CL_OFFSET); - - params->cl_magic = GRUB_LINUX_CL_MAGIC; - params->cl_offset = GRUB_OFW_LINUX_CL_OFFSET; - - { - grub_term_output_t term; - int found = 0; - FOR_ACTIVE_TERM_OUTPUTS(term) - if (grub_strcmp (term->name, "ofconsole") == 0) - { - grub_uint16_t pos = grub_term_getxy (term); - params->video_cursor_x = pos >> 8; - params->video_cursor_y = pos & 0xff; - params->video_width = grub_term_width (term); - params->video_height = grub_term_height (term); - found = 1; - break; - } - if (!found) - { - params->video_cursor_x = 0; - params->video_cursor_y = 0; - params->video_width = 80; - params->video_height = 25; - } - } - - params->font_size = 16; - - params->ofw_signature = GRUB_LINUX_OFW_SIGNATURE; - params->ofw_num_items = 1; - params->ofw_cif_handler = (grub_uint32_t) grub_ieee1275_entry_fn; - params->ofw_idt = 0; - - if (initrd_size) - { - lh->type_of_loader = 1; - lh->ramdisk_image = GRUB_OFW_LINUX_INITRD_ADDR; - lh->ramdisk_size = initrd_size; - } - - if (kernel_cmdline) - grub_strcpy (lh->cmd_line_ptr, kernel_cmdline); - - prot_code = (char *) GRUB_OFW_LINUX_KERNEL_ADDR; - grub_memcpy (prot_code, kernel_addr, kernel_size); - - asm volatile ("movl %0, %%esi" : : "m" (params)); - asm volatile ("movl %%esi, %%esp" : : ); - asm volatile ("movl %0, %%ecx" : : "m" (prot_code)); - asm volatile ("xorl %%ebx, %%ebx" : : ); - asm volatile ("jmp *%%ecx" : : ); - - return GRUB_ERR_NONE; -} - -static grub_err_t -grub_cmd_linux (grub_command_t cmd __attribute__ ((unused)), - int argc, char *argv[]) -{ - grub_file_t file = 0; - struct linux_kernel_header lh; - grub_uint8_t setup_sects; - grub_size_t real_size, prot_size; - int i; - char *dest; - - grub_dl_ref (my_mod); - - if (argc == 0) - { - grub_error (GRUB_ERR_BAD_ARGUMENT, "no kernel specified"); - goto fail; - } - - file = grub_file_open (argv[0]); - if (! file) - goto fail; - - if (grub_file_read (file, &lh, sizeof (lh)) != sizeof (lh)) - { - grub_error (GRUB_ERR_READ_ERROR, "cannot read the Linux header"); - goto fail; - } - - if ((lh.boot_flag != grub_cpu_to_le16 (0xaa55)) || - (lh.header != grub_cpu_to_le32 (GRUB_LINUX_MAGIC_SIGNATURE))) - { - grub_error (GRUB_ERR_BAD_OS, "invalid magic number"); - goto fail; - } - - setup_sects = lh.setup_sects; - if (! setup_sects) - setup_sects = GRUB_LINUX_DEFAULT_SETUP_SECTS; - - real_size = setup_sects << GRUB_DISK_SECTOR_BITS; - prot_size = grub_file_size (file) - real_size - GRUB_DISK_SECTOR_SIZE; - - grub_printf (" [Linux-%s, setup=0x%x, size=0x%x]\n", - "bzImage", real_size, prot_size); - - grub_file_seek (file, real_size + GRUB_DISK_SECTOR_SIZE); - if (grub_errno) - goto fail; - - kernel_cmdline = grub_malloc (GRUB_OFW_LINUX_CL_LENGTH); - if (! kernel_cmdline) - goto fail; - - dest = kernel_cmdline; - for (i = 1; - i < argc - && dest + grub_strlen (argv[i]) + 1 < (kernel_cmdline - + GRUB_OFW_LINUX_CL_LENGTH); - i++) - { - *dest++ = ' '; - dest = grub_stpcpy (dest, argv[i]); - } - - kernel_addr = grub_malloc (prot_size); - if (! kernel_addr) - goto fail; - - kernel_size = prot_size; - if (grub_file_read (file, kernel_addr, prot_size) != (int) prot_size) - grub_error (GRUB_ERR_FILE_READ_ERROR, "couldn't read file"); - - if (grub_errno == GRUB_ERR_NONE) - grub_loader_set (grub_linux_boot, grub_linux_unload, 1); - -fail: - - if (file) - grub_file_close (file); - - if (grub_errno != GRUB_ERR_NONE) - { - grub_free (kernel_cmdline); - grub_free (kernel_addr); - kernel_cmdline = 0; - kernel_addr = 0; - - grub_dl_unref (my_mod); - } - - return grub_errno; -} - -static grub_err_t -grub_cmd_initrd (grub_command_t cmd __attribute__ ((unused)), - int argc, char *argv[]) -{ - grub_file_t file = 0; - - if (argc == 0) - { - grub_error (GRUB_ERR_BAD_ARGUMENT, "no module specified"); - goto fail; - } - - if (! kernel_addr) - { - grub_error (GRUB_ERR_BAD_ARGUMENT, "you need to load the kernel first"); - goto fail; - } - - file = grub_file_open (argv[0]); - if (! file) - goto fail; - - initrd_size = grub_file_size (file); - if (grub_file_read (file, (void *) GRUB_OFW_LINUX_INITRD_ADDR, - initrd_size) != (int) initrd_size) - { - grub_error (GRUB_ERR_FILE_READ_ERROR, "couldn't read file"); - goto fail; - } - -fail: - if (file) - grub_file_close (file); - - return grub_errno; -} - -static grub_command_t cmd_linux, cmd_initrd; - -GRUB_MOD_INIT(linux) -{ - cmd_linux = grub_register_command ("linux", grub_cmd_linux, - 0, N_("Load Linux.")); - cmd_initrd = grub_register_command ("initrd", grub_cmd_initrd, - 0, N_("Load initrd.")); - my_mod = mod; -} - -GRUB_MOD_FINI(linux) -{ - grub_unregister_command (cmd_linux); - grub_unregister_command (cmd_initrd); -}