void __init page_address_init(void)
{
int i;
INIT_LIST_HEAD(&page_address_pool);
for (i = 0; i < ARRAY_SIZE(page_address_maps); i++)
list_add(&page_address_maps[i].list, &page_address_pool);
for (i = 0; i < ARRAY_SIZE(page_address_htable); i++) {
INIT_LIST_HEAD(&page_address_htable[i].lh);
spin_lock_init(&page_address_htable[i].lock);
}
spin_lock_init(&pool_lock);
}
static void __init boot_cpu_init(void)
{
/* カレントCPUのプロセッサIDを持ってくる */
int cpu = smp_processor_id();
/* Mark the boot cpu "present", "online" etc for SMP and UP case */
set_cpu_online(cpu, true);
set_cpu_present(cpu, true);
set_cpu_possible(cpu, true);
}
/**
* tick_init - initialize the tick control
*
* Register the notifier with the clockevents framework
*/
void __init tick_init(void)
{
clockevents_register_notifier(&tick_notifier);
}
/*
* Interrupts are still disabled. Do necessary setups, then
* enable them
*/
lock_kernel();
tick_init();
boot_cpu_init();
page_address_init();
printk(KERN_NOTICE);
printk(linux_banner);
setup_arch(&command_line);
mm_init_owner(&init_mm, &init_task);
setup_command_line(command_line);
unwind_setup();
setup_per_cpu_areas();
setup_nr_cpu_ids();
smp_prepare_boot_cpu(); /* arch-specific boot-cpu hooks */
static void prepare_set(void) __acquires(set_atomicity_lock)
{
unsigned long cr0;
/* スピンロックを獲得 */
spin_lock(&set_atomicity_lock);
/* CR0レジストをCD=1、NW=0の状態にする */
cr0 = read_cr0() | X86_CR0_CD;
write_cr0(cr0);
wbinvd();
/* グローバルページ機能をDisableにする */
if ( cpu_has_pge ) {
cr4 = read_cr4();
write_cr4(cr4 & ~X86_CR4_PGE);
}
/* TLBをクリア */
__flush_tlb();
/* MTRRの値を読み取る */
rdmsr(MTRRdefType_MSR, deftype_lo, deftype_hi);
/* MTRRを無効にしてuncachableに設定する */
mtrr_wrmsr(MTRRdefType_MSR, deftype_lo & ~0xcff, deftype_hi);
}
void early_init_irq_lock_class(void)======
{
int i;
for (i = 0; i < NR_IRQS; i++)
lockdep_set_class(&irq_desc[i].lock, &irq_desc_lock_class);
}
void early_boot_irqs_off(void)======
{
}
local_irq_disable();======
early_boot_irqs_off();
early_init_irq_lock_class();
static inline void native_irq_disable(void)=====
{
asm volatile("cli": : :"memory");
}
int __init cgroup_init_early(void)
{
int i;
kref_init(&init_css_set.ref);
kref_get(&init_css_set.ref);
INIT_LIST_HEAD(&init_css_set.cg_links);
INIT_LIST_HEAD(&init_css_set.tasks)
INIT_HLIST_NODE(&init_css_set.hlist);
css_set_count = 1;
init_cgroup_root(&rootnode);
list_add(&rootnode.root_list, &roots);
root_count = 1;
init_task.cgroups = &init_css_set;
init_css_set_link.cg = &init_css_set;
list_add(&init_css_set_link.cgrp_link_list,
&rootnode.top_cgroup.css_sets);
list_add(&init_css_set_link.cg_link_list,
&init_css_set.cg_links);
for (i = 0; i < i =" 0;" ss =" subsys[i];">early_init)
cgroup_init_subsys(ss);
}
return 0;
}
/*======
* Need to run as early as possible, to initialize the
* lockdep hash:
*/
lockdep_init();
debug_objects_early_init();
cgroup_init_early();
void __init debug_objects_early_init(void)======
{
int i;
for (i = 0; i < ODEBUG_HASH_SIZE; i++)
spin_lock_init(&obj_hash[i].lock);
for (i = 0; i < ODEBUG_POOL_SIZE; i++)
hlist_add_head(&obj_static_pool[i].node, &obj_pool);
}
asmlinkage void __init start_kernel(void)======
char * command_line;======
extern struct kernel_param __start___param[], __stop___param[];
smp_setup_processor_id();
/*======
* Need to run as early as possible, to initialize the
* lockdep hash:
*/
lockdep_init();
debug_objects_early_init();
cgroup_init_early();
void lockdep_init(void)
{
int i;
/*
* Some architectures have their own start_kernel()
* code which calls lockdep_init(), while we also
* call lockdep_init() from the start_kernel() itself,
* and we want to initialize the hashes only once:
*/
if (lockdep_initialized)
return;
for (i = 0; i < CLASSHASH_SIZE; i++)
INIT_LIST_HEAD(classhash_table + i);
for (i = 0; i < CHAINHASH_SIZE; i++)
INIT_LIST_HEAD(chainhash_table + i);
lockdep_initialized = 1;
}
SECTIONS====
{
.rodata.compressed : {
input_len = .;
LONG(input_data_end - input_data) input_data = .;
*(.data)
output_len = . - 4;
input_data_end = .;
}
}
$(obj)/piggy.o: $(obj)/vmlinux.scr $(obj)/vmlinux.bin.gz FORCE====
$(call if_changed,ld)
$(obj)/vmlinux.bin.gz: $(obj)/vmlinux.bin FORCE====
$(call if_changed,gzip)
$(obj)/vmlinux.bin: vmlinux FORCE====
$(call if_changed,objcopy)
$(obj)/vmlinux: $(src)/vmlinux_$(BITS).lds $(obj)/head_$(BITS).o $(obj)/misc.o $(obj)/piggy.o FORCE====
$(call if_changed,ld)
.section ".text"
relocated:
/*
* BSSセクションをクリア
*/
xorl %eax,%eax
leal _edata(%ebx),%edi
leal _end(%ebx), %ecx
subl %edi,%ecx
cld
rep
stosb
/*
* デコンプレッサ用にスタックをセット
*/
leal boot_stack_end(%ebx), %esp
/*
* パラメータをセットして、decompress_kernel関数をコールする
*/
movl output_len(%ebx), %eax
pushl %eax
pushl %ebp # output address
movl input_len(%ebx), %eax
pushl %eax # input_len
leal input_data(%ebx), %eax
pushl %eax # input_data
leal boot_heap(%ebx), %eax
pushl %eax # heap area as third argument
pushl %esi # real mode pointer as second arg
call decompress_kernel
addl $20, %esp
popl %ecx
