Based on kernel version 2.6.26. Page generated on 2008-07-16 21:12 EST.
1 The additional fields in struct boot_params as a part of 32-bit boot 2 protocol of kernel. These should be filled by bootloader or 16-bit 3 real-mode setup code of the kernel. References/settings to it mainly 4 are in: 5 6 include/asm-x86/bootparam.h 7 8 9 Offset Proto Name Meaning 10 /Size 11 12 000/040 ALL screen_info Text mode or frame buffer information 13 (struct screen_info) 14 040/014 ALL apm_bios_info APM BIOS information (struct apm_bios_info) 15 060/010 ALL ist_info Intel SpeedStep (IST) BIOS support information 16 (struct ist_info) 17 080/010 ALL hd0_info hd0 disk parameter, OBSOLETE!! 18 090/010 ALL hd1_info hd1 disk parameter, OBSOLETE!! 19 0A0/010 ALL sys_desc_table System description table (struct sys_desc_table) 20 140/080 ALL edid_info Video mode setup (struct edid_info) 21 1C0/020 ALL efi_info EFI 32 information (struct efi_info) 22 1E0/004 ALL alk_mem_k Alternative mem check, in KB 23 1E4/004 ALL scratch Scratch field for the kernel setup code 24 1E8/001 ALL e820_entries Number of entries in e820_map (below) 25 1E9/001 ALL eddbuf_entries Number of entries in eddbuf (below) 26 1EA/001 ALL edd_mbr_sig_buf_entries Number of entries in edd_mbr_sig_buffer 27 (below) 28 290/040 ALL edd_mbr_sig_buffer EDD MBR signatures 29 2D0/A00 ALL e820_map E820 memory map table 30 (array of struct e820entry) 31 D00/1EC ALL eddbuf EDD data (array of struct edd_info)