arch/x86/kernel/x86_init.c

   1 /*
   2  * Copyright (C) 2009 Thomas Gleixner <tglx@linutronix.de>
   3  *
   4  *  For licencing details see kernel-base/COPYING
   5  */
   6 #include <linux/init.h>
   7
   8 #include <asm/bios_ebda.h>
   9 #include <asm/mpspec.h>
  10 #include <asm/setup.h>
  11 #include <asm/e820.h>
  12 #include <asm/irq.h>
  13
  14 void __cpuinit x86_init_noop(void) { }
  15 void __init x86_init_uint_noop(unsigned int unused) { }
  16
  17 /*
  18  * The platform setup functions are preset with the default functions
  19  * for standard PC hardware.
  20  */
  21 struct __initdata x86_init_ops x86_init = {
  22
  23         .resources = {
  24                 .probe_roms             = x86_init_noop,
  25                 .reserve_resources      = reserve_standard_io_resources,
  26                 .reserve_ebda_region    = reserve_ebda_region,
  27                 .memory_setup           = default_machine_specific_memory_setup,
  28         },
  29
  30         .mpparse = {
  31                 .mpc_record             = x86_init_uint_noop,
  32                 .setup_ioapic_ids       = x86_init_noop,
  33                 .mpc_apic_id            = default_mpc_apic_id,
  34                 .smp_read_mpc_oem       = default_smp_read_mpc_oem,
  35                 .mpc_oem_bus_info       = default_mpc_oem_bus_info,
  36                 .find_smp_config        = default_find_smp_config,
  37                 .get_smp_config         = default_get_smp_config,
  38         },
  39
  40         .irqs = {
  41                 .pre_vector_init        = init_ISA_irqs,
  42                 .intr_init              = native_init_IRQ,
  43                 .trap_init              = x86_init_noop,
  44         },
  45
  46         .oem = {
  47                 .arch_setup             = x86_init_noop,
  48         },
  49 };