diff options
Diffstat (limited to 'kernel/arch/x86/kernel/head32.c')
| -rw-r--r-- | kernel/arch/x86/kernel/head32.c | 51 |
1 files changed, 51 insertions, 0 deletions
diff --git a/kernel/arch/x86/kernel/head32.c b/kernel/arch/x86/kernel/head32.c new file mode 100644 index 000000000..2911ef3a9 --- /dev/null +++ b/kernel/arch/x86/kernel/head32.c @@ -0,0 +1,51 @@ +/* + * linux/arch/i386/kernel/head32.c -- prepare to run common code + * + * Copyright (C) 2000 Andrea Arcangeli <andrea@suse.de> SuSE + * Copyright (C) 2007 Eric Biederman <ebiederm@xmission.com> + */ + +#include <linux/init.h> +#include <linux/start_kernel.h> +#include <linux/mm.h> +#include <linux/memblock.h> + +#include <asm/setup.h> +#include <asm/sections.h> +#include <asm/e820.h> +#include <asm/page.h> +#include <asm/apic.h> +#include <asm/io_apic.h> +#include <asm/bios_ebda.h> +#include <asm/tlbflush.h> +#include <asm/bootparam_utils.h> + +static void __init i386_default_early_setup(void) +{ + /* Initialize 32bit specific setup functions */ + x86_init.resources.reserve_resources = i386_reserve_resources; + x86_init.mpparse.setup_ioapic_ids = setup_ioapic_ids_from_mpc; + + reserve_ebda_region(); +} + +asmlinkage __visible void __init i386_start_kernel(void) +{ + cr4_init_shadow(); + sanitize_boot_params(&boot_params); + + /* Call the subarch specific early setup function */ + switch (boot_params.hdr.hardware_subarch) { + case X86_SUBARCH_INTEL_MID: + x86_intel_mid_early_setup(); + break; + case X86_SUBARCH_CE4100: + x86_ce4100_early_setup(); + break; + default: + i386_default_early_setup(); + break; + } + + start_kernel(); +} |