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| File: [Development] / linux-2.6-xfs / Documentation / i386 / Attic / zero-page.txt (download)
Revision 1.12, Mon Dec 3 16:26:37 2007 UTC (9 years, 10 months ago) by lachlan.longdrop.melbourne.sgi.com
Merge up to 2.6.24-rc3 Merge of 2.6.x-xfs-melb:linux:30183b by kenmcd. |
The additional fields in struct boot_params as a part of 32-bit boot protocol of kernel. These should be filled by bootloader or 16-bit real-mode setup code of the kernel. References/settings to it mainly are in: include/asm-x86/bootparam.h Offset Proto Name Meaning /Size 000/040 ALL screen_info Text mode or frame buffer information (struct screen_info) 040/014 ALL apm_bios_info APM BIOS information (struct apm_bios_info) 060/010 ALL ist_info Intel SpeedStep (IST) BIOS support information (struct ist_info) 080/010 ALL hd0_info hd0 disk parameter, OBSOLETE!! 090/010 ALL hd1_info hd1 disk parameter, OBSOLETE!! 0A0/010 ALL sys_desc_table System description table (struct sys_desc_table) 140/080 ALL edid_info Video mode setup (struct edid_info) 1C0/020 ALL efi_info EFI 32 information (struct efi_info) 1E0/004 ALL alk_mem_k Alternative mem check, in KB 1E4/004 ALL scratch Scratch field for the kernel setup code 1E8/001 ALL e820_entries Number of entries in e820_map (below) 1E9/001 ALL eddbuf_entries Number of entries in eddbuf (below) 1EA/001 ALL edd_mbr_sig_buf_entries Number of entries in edd_mbr_sig_buffer (below) 290/040 ALL edd_mbr_sig_buffer EDD MBR signatures 2D0/A00 ALL e820_map E820 memory map table (array of struct e820entry) D00/1EC ALL eddbuf EDD data (array of struct edd_info)