projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 700efc1b EB |
1 | /* |
| 2 | * linux/arch/i386/kernel/head32.c -- prepare to run common code | |
| 3 | * | |
| 4 | * Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE | |
| 5 | * Copyright (C) 2007 Eric Biederman <ebiederm@xmission.com> | |
| 6 | */ | |
| 7 | ||
| 8 | #include <linux/init.h> | |
| 9 | #include <linux/start_kernel.h> | |
| 10 | ||
| a4c81cf6 YL |
11 | #include <asm/setup.h> |
| 12 | #include <asm/sections.h> | |
| 13 | #include <asm/e820.h> | |
| 14 | #include <asm/bios_ebda.h> | |
| 15 | ||
| 700efc1b EB |
16 | void __init i386_start_kernel(void) |
| 17 | { | |
| a4c81cf6 YL |
18 | reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS"); |
| 19 | ||
| 20 | #ifdef CONFIG_BLK_DEV_INITRD | |
| 21 | /* Reserve INITRD */ | |
| 22 | if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) { | |
| 23 | u64 ramdisk_image = boot_params.hdr.ramdisk_image; | |
| 24 | u64 ramdisk_size = boot_params.hdr.ramdisk_size; | |
| 25 | u64 ramdisk_end = ramdisk_image + ramdisk_size; | |
| 26 | reserve_early(ramdisk_image, ramdisk_end, "RAMDISK"); | |
| 27 | } | |
| 28 | #endif | |
| f0d43100 YL |
29 | reserve_early(init_pg_tables_start, init_pg_tables_end, |
| 30 | "INIT_PG_TABLE"); | |
| a4c81cf6 YL |
31 | |
| 32 | reserve_ebda_region(); | |
| 33 | ||
| 34 | /* | |
| 35 | * At this point everything still needed from the boot loader | |
| 36 | * or BIOS or kernel text should be early reserved or marked not | |
| 37 | * RAM in e820. All other memory is free game. | |
| 38 | */ | |
| 39 | ||
| 700efc1b EB |
40 | start_kernel(); |
| 41 | } |