0f20a51812
Signed-off-by: Vladimir Serbinenko <phcoder@gmail.com> Signed-off-by: Daniel Kiper <daniel.kiper@oracle.com> Reviewed-by: Ross Philipson <ross.philipson@oracle.com>
761 lines
20 KiB
C
761 lines
20 KiB
C
/*
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* GRUB -- GRand Unified Bootloader
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* Copyright (C) 1999,2000,2001,2002,2003,2004,2005,2007,2008,2009 Free Software Foundation, Inc.
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*
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* GRUB is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* GRUB is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with GRUB. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <grub/memory.h>
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#ifdef GRUB_MACHINE_PCBIOS
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#include <grub/machine/biosnum.h>
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#include <grub/machine/apm.h>
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#include <grub/machine/memory.h>
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#endif
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#include <grub/multiboot.h>
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#include <grub/cpu/relocator.h>
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#include <grub/disk.h>
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#include <grub/device.h>
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#include <grub/partition.h>
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#include <grub/mm.h>
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#include <grub/misc.h>
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#include <grub/env.h>
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#include <grub/relocator.h>
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#include <grub/video.h>
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#include <grub/file.h>
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#include <grub/net.h>
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#include <grub/i18n.h>
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#include <grub/lib/cmdline.h>
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#include <grub/tpm.h>
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#ifdef GRUB_MACHINE_EFI
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#include <grub/efi/efi.h>
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#endif
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/* The bits in the required part of flags field we don't support. */
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#define UNSUPPORTED_FLAGS 0x0000fff8
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struct module
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{
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struct module *next;
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grub_addr_t start;
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grub_size_t size;
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char *cmdline;
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int cmdline_size;
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};
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static struct module *modules, *modules_last;
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static grub_size_t cmdline_size;
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static grub_size_t total_modcmd;
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static unsigned modcnt;
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static char *cmdline = NULL;
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static grub_uint32_t bootdev;
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static int bootdev_set;
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static grub_size_t elf_sec_num, elf_sec_entsize;
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static unsigned elf_sec_shstrndx;
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static void *elf_sections;
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grub_multiboot_quirks_t grub_multiboot_quirks;
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static grub_err_t
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load_kernel (grub_file_t file, const char *filename,
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char *buffer, struct multiboot_header *header)
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{
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grub_err_t err;
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mbi_load_data_t mld;
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mld.file = file;
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mld.filename = filename;
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mld.buffer = buffer;
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mld.mbi_ver = 1;
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mld.relocatable = 0;
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mld.avoid_efi_boot_services = 0;
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if (grub_multiboot_quirks & GRUB_MULTIBOOT_QUIRK_BAD_KLUDGE)
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{
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err = grub_multiboot_load_elf (&mld);
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if (err == GRUB_ERR_NONE) {
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return GRUB_ERR_NONE;
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}
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if (err == GRUB_ERR_UNKNOWN_OS && (header->flags & MULTIBOOT_AOUT_KLUDGE))
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grub_errno = err = GRUB_ERR_NONE;
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}
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if (header->flags & MULTIBOOT_AOUT_KLUDGE)
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{
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int offset = ((char *) header - buffer -
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(header->header_addr - header->load_addr));
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int load_size = ((header->load_end_addr == 0) ? file->size - offset :
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header->load_end_addr - header->load_addr);
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grub_size_t code_size;
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void *source;
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grub_relocator_chunk_t ch;
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if (header->bss_end_addr)
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code_size = (header->bss_end_addr - header->load_addr);
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else
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code_size = load_size;
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err = grub_relocator_alloc_chunk_addr (grub_multiboot_relocator,
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&ch, header->load_addr,
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code_size);
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if (err)
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{
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grub_dprintf ("multiboot_loader", "Error loading aout kludge\n");
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return err;
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}
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source = get_virtual_current_address (ch);
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if ((grub_file_seek (file, offset)) == (grub_off_t) -1)
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{
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return grub_errno;
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}
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grub_file_read (file, source, load_size);
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if (grub_errno)
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return grub_errno;
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if (header->bss_end_addr)
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grub_memset ((grub_uint8_t *) source + load_size, 0,
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header->bss_end_addr - header->load_addr - load_size);
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grub_multiboot_payload_eip = header->entry_addr;
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return GRUB_ERR_NONE;
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}
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return grub_multiboot_load_elf (&mld);
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}
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static struct multiboot_header *
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find_header (char *buffer, grub_ssize_t len)
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{
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struct multiboot_header *header;
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/* Look for the multiboot header in the buffer. The header should
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be at least 12 bytes and aligned on a 4-byte boundary. */
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for (header = (struct multiboot_header *) buffer;
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((char *) header <= buffer + len - 12);
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header = (struct multiboot_header *) ((char *) header + MULTIBOOT_HEADER_ALIGN))
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{
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if (header->magic == MULTIBOOT_HEADER_MAGIC
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&& !(header->magic + header->flags + header->checksum))
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return header;
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}
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return NULL;
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}
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grub_err_t
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grub_multiboot_load (grub_file_t file, const char *filename)
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{
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char *buffer;
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grub_ssize_t len;
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struct multiboot_header *header;
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grub_err_t err;
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buffer = grub_malloc (MULTIBOOT_SEARCH);
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if (!buffer)
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return grub_errno;
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len = grub_file_read (file, buffer, MULTIBOOT_SEARCH);
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if (len < 32)
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{
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grub_free (buffer);
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if (!grub_errno)
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grub_error (GRUB_ERR_BAD_OS, N_("premature end of file %s"),
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filename);
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return grub_errno;
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}
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grub_tpm_measure((unsigned char*)buffer, len, GRUB_BINARY_PCR, "grub_multiboot", filename);
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grub_print_error();
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header = find_header (buffer, len);
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if (header == 0)
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{
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grub_free (buffer);
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return grub_error (GRUB_ERR_BAD_ARGUMENT, "no multiboot header found");
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}
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if (header->flags & UNSUPPORTED_FLAGS)
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{
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grub_free (buffer);
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return grub_error (GRUB_ERR_UNKNOWN_OS,
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"unsupported flag: 0x%x", header->flags);
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}
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err = load_kernel (file, filename, buffer, header);
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if (err)
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{
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grub_free (buffer);
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return err;
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}
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if (header->flags & MULTIBOOT_VIDEO_MODE)
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{
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switch (header->mode_type)
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{
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case 1:
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err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
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GRUB_MULTIBOOT_CONSOLE_EGA_TEXT
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| GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
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0, 0, 0, 0);
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break;
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case 0:
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err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
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GRUB_MULTIBOOT_CONSOLE_EGA_TEXT
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| GRUB_MULTIBOOT_CONSOLE_FRAMEBUFFER,
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header->width, header->height,
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header->depth, 0);
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break;
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default:
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err = grub_error (GRUB_ERR_BAD_OS,
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"unsupported graphical mode type %d",
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header->mode_type);
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break;
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}
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}
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else
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err = grub_multiboot_set_console (GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
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GRUB_MULTIBOOT_CONSOLE_EGA_TEXT,
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0, 0, 0, 0);
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return err;
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}
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#if GRUB_MACHINE_HAS_VBE || GRUB_MACHINE_HAS_VGA_TEXT
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#include <grub/i386/pc/vbe.h>
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#endif
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static grub_size_t
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grub_multiboot_get_mbi_size (void)
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{
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grub_size_t ret;
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struct grub_net_network_level_interface *net;
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ret = sizeof (struct multiboot_info) + ALIGN_UP (cmdline_size, 4)
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+ modcnt * sizeof (struct multiboot_mod_list) + total_modcmd
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+ ALIGN_UP (sizeof(PACKAGE_STRING), 4)
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+ grub_multiboot_get_mmap_count () * sizeof (struct multiboot_mmap_entry)
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+ elf_sec_entsize * elf_sec_num
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+ 256 * sizeof (struct multiboot_color)
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#if GRUB_MACHINE_HAS_VBE || GRUB_MACHINE_HAS_VGA_TEXT
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+ sizeof (struct grub_vbe_info_block)
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+ sizeof (struct grub_vbe_mode_info_block)
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#endif
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+ ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
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FOR_NET_NETWORK_LEVEL_INTERFACES(net)
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if (net->dhcp_ack)
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{
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ret += net->dhcp_acklen;
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break;
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}
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return ret;
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}
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/* Helper for grub_fill_multiboot_mmap. */
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static int
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grub_fill_multiboot_mmap_iter (grub_uint64_t addr, grub_uint64_t size,
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grub_memory_type_t type, void *data)
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{
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struct multiboot_mmap_entry **mmap_entry = data;
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(*mmap_entry)->addr = addr;
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(*mmap_entry)->len = size;
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(*mmap_entry)->type = type;
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(*mmap_entry)->size = sizeof (struct multiboot_mmap_entry) - sizeof ((*mmap_entry)->size);
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(*mmap_entry)++;
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return 0;
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}
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/* Fill previously allocated Multiboot mmap. */
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static void
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grub_fill_multiboot_mmap (struct multiboot_mmap_entry *first_entry)
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{
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struct multiboot_mmap_entry *mmap_entry = (struct multiboot_mmap_entry *) first_entry;
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grub_mmap_iterate (grub_fill_multiboot_mmap_iter, &mmap_entry);
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}
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#if GRUB_MACHINE_HAS_VBE || GRUB_MACHINE_HAS_VGA_TEXT
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static grub_err_t
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fill_vbe_info (struct multiboot_info *mbi, grub_uint8_t *ptrorig,
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grub_uint32_t ptrdest, int fill_generic)
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{
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grub_uint32_t vbe_mode;
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struct grub_vbe_mode_info_block *mode_info;
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#if GRUB_MACHINE_HAS_VBE
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grub_vbe_status_t status;
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void *scratch = (void *) GRUB_MEMORY_MACHINE_SCRATCH_ADDR;
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status = grub_vbe_bios_get_controller_info (scratch);
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if (status != GRUB_VBE_STATUS_OK)
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return grub_error (GRUB_ERR_IO, "Can't get controller info.");
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mbi->vbe_control_info = ptrdest;
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grub_memcpy (ptrorig, scratch, sizeof (struct grub_vbe_info_block));
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ptrorig += sizeof (struct grub_vbe_info_block);
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ptrdest += sizeof (struct grub_vbe_info_block);
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#else
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mbi->vbe_control_info = 0;
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#endif
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#if GRUB_MACHINE_HAS_VBE
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status = grub_vbe_bios_get_mode (scratch);
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vbe_mode = *(grub_uint32_t *) scratch;
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if (status != GRUB_VBE_STATUS_OK)
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return grub_error (GRUB_ERR_IO, "can't get VBE mode");
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#else
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vbe_mode = 3;
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#endif
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mbi->vbe_mode = vbe_mode;
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mode_info = (struct grub_vbe_mode_info_block *) ptrorig;
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mbi->vbe_mode_info = ptrdest;
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/* get_mode_info isn't available for mode 3. */
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if (vbe_mode == 3)
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{
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grub_memset (mode_info, 0, sizeof (struct grub_vbe_mode_info_block));
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mode_info->memory_model = GRUB_VBE_MEMORY_MODEL_TEXT;
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mode_info->x_resolution = 80;
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mode_info->y_resolution = 25;
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}
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else
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{
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#if GRUB_MACHINE_HAS_VBE
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status = grub_vbe_bios_get_mode_info (vbe_mode, scratch);
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if (status != GRUB_VBE_STATUS_OK)
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return grub_error (GRUB_ERR_IO, "can't get mode info");
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grub_memcpy (mode_info, scratch,
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sizeof (struct grub_vbe_mode_info_block));
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#endif
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}
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ptrorig += sizeof (struct grub_vbe_mode_info_block);
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ptrdest += sizeof (struct grub_vbe_mode_info_block);
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#if GRUB_MACHINE_HAS_VBE
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grub_vbe_bios_get_pm_interface (&mbi->vbe_interface_seg,
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&mbi->vbe_interface_off,
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&mbi->vbe_interface_len);
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#endif
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mbi->flags |= MULTIBOOT_INFO_VBE_INFO;
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if (fill_generic && mode_info->memory_model == GRUB_VBE_MEMORY_MODEL_TEXT)
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{
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mbi->framebuffer_addr = 0xb8000;
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mbi->framebuffer_pitch = 2 * mode_info->x_resolution;
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mbi->framebuffer_width = mode_info->x_resolution;
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mbi->framebuffer_height = mode_info->y_resolution;
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mbi->framebuffer_bpp = 16;
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mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_EGA_TEXT;
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mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
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}
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return GRUB_ERR_NONE;
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}
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#endif
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static grub_err_t
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retrieve_video_parameters (struct multiboot_info *mbi,
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grub_uint8_t *ptrorig, grub_uint32_t ptrdest)
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{
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grub_err_t err;
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struct grub_video_mode_info mode_info;
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void *framebuffer;
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grub_video_driver_id_t driv_id;
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struct grub_video_palette_data palette[256];
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err = grub_multiboot_set_video_mode ();
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if (err)
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{
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grub_print_error ();
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grub_errno = GRUB_ERR_NONE;
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}
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grub_video_get_palette (0, ARRAY_SIZE (palette), palette);
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driv_id = grub_video_get_driver_id ();
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#if GRUB_MACHINE_HAS_VGA_TEXT
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if (driv_id == GRUB_VIDEO_DRIVER_NONE)
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return fill_vbe_info (mbi, ptrorig, ptrdest, 1);
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#else
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if (driv_id == GRUB_VIDEO_DRIVER_NONE)
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return GRUB_ERR_NONE;
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#endif
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err = grub_video_get_info_and_fini (&mode_info, &framebuffer);
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if (err)
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return err;
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mbi->framebuffer_addr = (grub_addr_t) framebuffer;
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mbi->framebuffer_pitch = mode_info.pitch;
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mbi->framebuffer_width = mode_info.width;
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mbi->framebuffer_height = mode_info.height;
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mbi->framebuffer_bpp = mode_info.bpp;
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if (mode_info.mode_type & GRUB_VIDEO_MODE_TYPE_INDEX_COLOR)
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{
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struct multiboot_color *mb_palette;
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unsigned i;
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mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED;
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mbi->framebuffer_palette_addr = ptrdest;
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mbi->framebuffer_palette_num_colors = mode_info.number_of_colors;
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if (mbi->framebuffer_palette_num_colors > ARRAY_SIZE (palette))
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mbi->framebuffer_palette_num_colors = ARRAY_SIZE (palette);
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mb_palette = (struct multiboot_color *) ptrorig;
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for (i = 0; i < mbi->framebuffer_palette_num_colors; i++)
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{
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mb_palette[i].red = palette[i].r;
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mb_palette[i].green = palette[i].g;
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mb_palette[i].blue = palette[i].b;
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}
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ptrorig += mbi->framebuffer_palette_num_colors
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* sizeof (struct multiboot_color);
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ptrdest += mbi->framebuffer_palette_num_colors
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* sizeof (struct multiboot_color);
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}
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else
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{
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mbi->framebuffer_type = MULTIBOOT_FRAMEBUFFER_TYPE_RGB;
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mbi->framebuffer_red_field_position = mode_info.red_field_pos;
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mbi->framebuffer_red_mask_size = mode_info.red_mask_size;
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mbi->framebuffer_green_field_position = mode_info.green_field_pos;
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mbi->framebuffer_green_mask_size = mode_info.green_mask_size;
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mbi->framebuffer_blue_field_position = mode_info.blue_field_pos;
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mbi->framebuffer_blue_mask_size = mode_info.blue_mask_size;
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}
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mbi->flags |= MULTIBOOT_INFO_FRAMEBUFFER_INFO;
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#if GRUB_MACHINE_HAS_VBE
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if (driv_id == GRUB_VIDEO_DRIVER_VBE)
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return fill_vbe_info (mbi, ptrorig, ptrdest, 0);
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#endif
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return GRUB_ERR_NONE;
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}
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grub_err_t
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grub_multiboot_make_mbi (grub_uint32_t *target)
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{
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struct multiboot_info *mbi;
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struct multiboot_mod_list *modlist;
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unsigned i;
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struct module *cur;
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grub_size_t mmap_size;
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grub_uint8_t *ptrorig;
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grub_addr_t ptrdest;
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grub_err_t err;
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grub_size_t bufsize;
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grub_relocator_chunk_t ch;
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bufsize = grub_multiboot_get_mbi_size ();
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err = grub_relocator_alloc_chunk_align (grub_multiboot_relocator, &ch,
|
|
0x10000, 0xa0000 - bufsize,
|
|
bufsize, 4,
|
|
GRUB_RELOCATOR_PREFERENCE_NONE, 0);
|
|
if (err)
|
|
return err;
|
|
ptrorig = get_virtual_current_address (ch);
|
|
ptrdest = get_physical_target_address (ch);
|
|
|
|
*target = ptrdest;
|
|
|
|
mbi = (struct multiboot_info *) ptrorig;
|
|
ptrorig += sizeof (*mbi);
|
|
ptrdest += sizeof (*mbi);
|
|
grub_memset (mbi, 0, sizeof (*mbi));
|
|
|
|
grub_memcpy (ptrorig, cmdline, cmdline_size);
|
|
mbi->flags |= MULTIBOOT_INFO_CMDLINE;
|
|
mbi->cmdline = ptrdest;
|
|
ptrorig += ALIGN_UP (cmdline_size, 4);
|
|
ptrdest += ALIGN_UP (cmdline_size, 4);
|
|
|
|
grub_memcpy (ptrorig, PACKAGE_STRING, sizeof(PACKAGE_STRING));
|
|
mbi->flags |= MULTIBOOT_INFO_BOOT_LOADER_NAME;
|
|
mbi->boot_loader_name = ptrdest;
|
|
ptrorig += ALIGN_UP (sizeof(PACKAGE_STRING), 4);
|
|
ptrdest += ALIGN_UP (sizeof(PACKAGE_STRING), 4);
|
|
|
|
#ifdef GRUB_MACHINE_PCBIOS
|
|
{
|
|
struct grub_apm_info info;
|
|
if (grub_apm_get_info (&info))
|
|
{
|
|
struct multiboot_apm_info *mbinfo = (void *) ptrorig;
|
|
|
|
mbinfo->cseg = info.cseg;
|
|
mbinfo->offset = info.offset;
|
|
mbinfo->cseg_16 = info.cseg_16;
|
|
mbinfo->dseg = info.dseg;
|
|
mbinfo->flags = info.flags;
|
|
mbinfo->cseg_len = info.cseg_len;
|
|
mbinfo->dseg_len = info.dseg_len;
|
|
mbinfo->cseg_16_len = info.cseg_16_len;
|
|
mbinfo->version = info.version;
|
|
|
|
ptrorig += ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
|
|
ptrdest += ALIGN_UP (sizeof (struct multiboot_apm_info), 4);
|
|
}
|
|
}
|
|
#endif
|
|
|
|
if (modcnt)
|
|
{
|
|
mbi->flags |= MULTIBOOT_INFO_MODS;
|
|
mbi->mods_addr = ptrdest;
|
|
mbi->mods_count = modcnt;
|
|
modlist = (struct multiboot_mod_list *) ptrorig;
|
|
ptrorig += modcnt * sizeof (struct multiboot_mod_list);
|
|
ptrdest += modcnt * sizeof (struct multiboot_mod_list);
|
|
|
|
for (i = 0, cur = modules; i < modcnt; i++, cur = cur->next)
|
|
{
|
|
modlist[i].mod_start = cur->start;
|
|
modlist[i].mod_end = modlist[i].mod_start + cur->size;
|
|
modlist[i].cmdline = ptrdest;
|
|
grub_memcpy (ptrorig, cur->cmdline, cur->cmdline_size);
|
|
ptrorig += ALIGN_UP (cur->cmdline_size, 4);
|
|
ptrdest += ALIGN_UP (cur->cmdline_size, 4);
|
|
}
|
|
}
|
|
else
|
|
{
|
|
mbi->mods_addr = 0;
|
|
mbi->mods_count = 0;
|
|
}
|
|
|
|
mmap_size = grub_multiboot_get_mmap_count ()
|
|
* sizeof (struct multiboot_mmap_entry);
|
|
grub_fill_multiboot_mmap ((struct multiboot_mmap_entry *) ptrorig);
|
|
mbi->mmap_length = mmap_size;
|
|
mbi->mmap_addr = ptrdest;
|
|
mbi->flags |= MULTIBOOT_INFO_MEM_MAP;
|
|
ptrorig += mmap_size;
|
|
ptrdest += mmap_size;
|
|
|
|
/* Convert from bytes to kilobytes. */
|
|
mbi->mem_lower = grub_mmap_get_lower () / 1024;
|
|
mbi->mem_upper = grub_mmap_get_upper () / 1024;
|
|
mbi->flags |= MULTIBOOT_INFO_MEMORY;
|
|
|
|
if (bootdev_set)
|
|
{
|
|
mbi->boot_device = bootdev;
|
|
mbi->flags |= MULTIBOOT_INFO_BOOTDEV;
|
|
}
|
|
|
|
{
|
|
struct grub_net_network_level_interface *net;
|
|
FOR_NET_NETWORK_LEVEL_INTERFACES(net)
|
|
if (net->dhcp_ack)
|
|
{
|
|
grub_memcpy (ptrorig, net->dhcp_ack, net->dhcp_acklen);
|
|
mbi->drives_addr = ptrdest;
|
|
mbi->drives_length = net->dhcp_acklen;
|
|
ptrorig += net->dhcp_acklen;
|
|
ptrdest += net->dhcp_acklen;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (elf_sec_num)
|
|
{
|
|
mbi->u.elf_sec.addr = ptrdest;
|
|
grub_memcpy (ptrorig, elf_sections, elf_sec_entsize * elf_sec_num);
|
|
mbi->u.elf_sec.num = elf_sec_num;
|
|
mbi->u.elf_sec.size = elf_sec_entsize;
|
|
mbi->u.elf_sec.shndx = elf_sec_shstrndx;
|
|
|
|
mbi->flags |= MULTIBOOT_INFO_ELF_SHDR;
|
|
|
|
ptrorig += elf_sec_entsize * elf_sec_num;
|
|
ptrdest += elf_sec_entsize * elf_sec_num;
|
|
}
|
|
|
|
err = retrieve_video_parameters (mbi, ptrorig, ptrdest);
|
|
if (err)
|
|
{
|
|
grub_print_error ();
|
|
grub_errno = GRUB_ERR_NONE;
|
|
}
|
|
|
|
if ((mbi->flags & MULTIBOOT_INFO_FRAMEBUFFER_INFO)
|
|
&& mbi->framebuffer_type == MULTIBOOT_FRAMEBUFFER_TYPE_INDEXED)
|
|
{
|
|
ptrorig += mbi->framebuffer_palette_num_colors
|
|
* sizeof (struct multiboot_color);
|
|
ptrdest += mbi->framebuffer_palette_num_colors
|
|
* sizeof (struct multiboot_color);
|
|
}
|
|
|
|
#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
|
|
|
|
#ifdef GRUB_MACHINE_EFI
|
|
err = grub_efi_finish_boot_services (NULL, NULL, NULL, NULL, NULL);
|
|
if (err)
|
|
return err;
|
|
#endif
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
void
|
|
grub_multiboot_add_elfsyms (grub_size_t num, grub_size_t entsize,
|
|
unsigned shndx, void *data)
|
|
{
|
|
elf_sec_num = num;
|
|
elf_sec_shstrndx = shndx;
|
|
elf_sec_entsize = entsize;
|
|
elf_sections = data;
|
|
}
|
|
|
|
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_free (elf_sections);
|
|
elf_sections = NULL;
|
|
elf_sec_entsize = 0;
|
|
elf_sec_num = 0;
|
|
}
|
|
|
|
grub_err_t
|
|
grub_multiboot_init_mbi (int argc, char *argv[])
|
|
{
|
|
grub_ssize_t len = 0;
|
|
|
|
grub_multiboot_free_mbi ();
|
|
|
|
len = grub_loader_cmdline_size (argc, argv);
|
|
|
|
cmdline = grub_malloc (len);
|
|
if (! cmdline)
|
|
return grub_errno;
|
|
cmdline_size = len;
|
|
|
|
return grub_create_loader_cmdline (argc, argv, cmdline,
|
|
cmdline_size, GRUB_VERIFY_KERNEL_CMDLINE);
|
|
}
|
|
|
|
grub_err_t
|
|
grub_multiboot_add_module (grub_addr_t start, grub_size_t size,
|
|
int argc, char *argv[])
|
|
{
|
|
struct module *newmod;
|
|
grub_size_t len = 0;
|
|
grub_err_t err;
|
|
|
|
newmod = grub_malloc (sizeof (*newmod));
|
|
if (!newmod)
|
|
return grub_errno;
|
|
newmod->start = start;
|
|
newmod->size = size;
|
|
newmod->next = 0;
|
|
|
|
len = grub_loader_cmdline_size (argc, argv);
|
|
|
|
newmod->cmdline = grub_malloc (len);
|
|
if (! newmod->cmdline)
|
|
{
|
|
grub_free (newmod);
|
|
return grub_errno;
|
|
}
|
|
newmod->cmdline_size = len;
|
|
total_modcmd += ALIGN_UP (len, 4);
|
|
|
|
err = grub_create_loader_cmdline (argc, argv, newmod->cmdline,
|
|
newmod->cmdline_size, GRUB_VERIFY_MODULE_CMDLINE);
|
|
if (err)
|
|
{
|
|
grub_free (newmod);
|
|
return grub_errno;
|
|
}
|
|
|
|
if (modules_last)
|
|
modules_last->next = newmod;
|
|
else
|
|
modules = newmod;
|
|
modules_last = newmod;
|
|
|
|
modcnt++;
|
|
|
|
return GRUB_ERR_NONE;
|
|
}
|
|
|
|
void
|
|
grub_multiboot_set_bootdev (void)
|
|
{
|
|
grub_uint32_t biosdev, slice = ~0, part = ~0;
|
|
grub_device_t dev;
|
|
|
|
#ifdef GRUB_MACHINE_PCBIOS
|
|
biosdev = grub_get_root_biosnumber ();
|
|
#else
|
|
biosdev = 0xffffffff;
|
|
#endif
|
|
|
|
if (biosdev == 0xffffffff)
|
|
return;
|
|
|
|
dev = grub_device_open (0);
|
|
if (dev && dev->disk && dev->disk->partition)
|
|
{
|
|
if (dev->disk->partition->parent)
|
|
{
|
|
part = dev->disk->partition->number;
|
|
slice = dev->disk->partition->parent->number;
|
|
}
|
|
else
|
|
slice = dev->disk->partition->number;
|
|
}
|
|
if (dev)
|
|
grub_device_close (dev);
|
|
|
|
bootdev = ((biosdev & 0xff) << 24) | ((slice & 0xff) << 16)
|
|
| ((part & 0xff) << 8) | 0xff;
|
|
bootdev_set = 1;
|
|
}
|