void __init x86_64_start_kernel(char * real_mode_data)
{
char *s;
clear_bss();
pda_init(0);
copy_bootdata(real_mode_data);
#ifdef CONFIG_SMP
cpu_set(0, cpu_online_map);
#endif
/* default console: */
if (!strstr(saved_command_line, "console="))
strcat(saved_command_line, " console=tty0");
s = strstr(saved_command_line, "earlyprintk=");
if (s != NULL)
setup_early_printk(s);
#ifdef CONFIG_DISCONTIGMEM
s = strstr(saved_command_line, "numa=");
if (s != NULL)
numa_setup(s+5);
#endif
#ifdef CONFIG_X86_IO_APIC
if (strstr(saved_command_line, "disableapic"))
disable_apic = 1;
#endif
/* You need early console to see that */
if (__pa_symbol(&_end) >= KERNEL_TEXT_SIZE)
panic("Kernel too big for kernel mapping\n");
setup_boot_cpu_data();
start_kernel();
}
void __init x86_64_start_kernel(char * real_mode_data)
{
int i;
/* clear bss before set_intr_gate with early_idt_handler */
clear_bss();
/* Make NULL pointers segfault */
zap_identity_mappings();
for (i = 0; i < IDT_ENTRIES; i++)
set_intr_gate(i, early_idt_handler);
load_idt((const struct desc_ptr *)&idt_descr);
early_printk("Kernel alive\n");
for (i = 0; i < NR_CPUS; i++)
cpu_pda(i) = &boot_cpu_pda[i];
pda_init(0);
copy_bootdata(__va(real_mode_data));
#ifdef CONFIG_SMP
cpu_set(0, cpu_online_map);
#endif
start_kernel();
}
void __init x86_64_start_kernel(char * real_mode_data)
{
char *s;
clear_bss();
pda_init(0);
copy_bootdata(real_mode_data);
/* default console: */
if (!strstr(saved_command_line, "console="))
strcat(saved_command_line, " console=tty0");
s = strstr(saved_command_line, "earlyprintk=");
if (s != NULL)
setup_early_printk(s+12);
#ifdef CONFIG_DISCONTIGMEM
s = strstr(saved_command_line, "numa=");
if (s != NULL)
numa_setup(s+5);
#endif
#ifdef CONFIG_X86_IO_APIC
if (strstr(saved_command_line, "disableapic"))
disable_apic = 1;
#endif
setup_boot_cpu_data();
start_kernel();
}
void x86_64_start_kernel(char * real_mode_data)
{
extern void kinit();
clear_bss(); /* must be the first thing in C and must not depend on .bss to be zero */
early_printk("booting amd64 k42...\n");
copy_bootdata(real_mode_data);
setup_boot_cpu_data();
pda_init(0);
kinit();
}
void __init x86_64_start_kernel(char * real_mode_data)
{
char *s;
clear_bss(); /* must be the first thing in C and must not depend on .bss to be zero */
pda_init(0);
copy_bootdata(real_mode_data);
s = strstr(saved_command_line, "earlyprintk=");
if (s != NULL)
setup_early_printk(s+12);
#ifdef CONFIG_DISCONTIGMEM
extern int numa_setup(char *);
s = strstr(saved_command_line, "numa=");
if (s != NULL)
numa_setup(s+5);
#endif
early_printk("booting x86_64 kernel... ");
setup_boot_cpu_data();
start_kernel();
}
void __init x86_64_init_pda(void)
{
_cpu_pda = __cpu_pda;
cpu_pda(0) = &_boot_cpu_pda;
pda_init(0);
}
void __init x86_64_start_kernel(char * real_mode_data)
{
int i;
/*
* Build-time sanity checks on the kernel image and module
* area mappings. (these are purely build-time and produce no code)
*/
BUILD_BUG_ON(MODULES_VADDR < KERNEL_IMAGE_START);
BUILD_BUG_ON(MODULES_VADDR-KERNEL_IMAGE_START < KERNEL_IMAGE_SIZE);
BUILD_BUG_ON(MODULES_LEN + KERNEL_IMAGE_SIZE > 2*PUD_SIZE);
BUILD_BUG_ON((KERNEL_IMAGE_START & ~PMD_MASK) != 0);
BUILD_BUG_ON((MODULES_VADDR & ~PMD_MASK) != 0);
BUILD_BUG_ON(!(MODULES_VADDR > __START_KERNEL));
BUILD_BUG_ON(!(((MODULES_END - 1) & PGDIR_MASK) ==
(__START_KERNEL & PGDIR_MASK)));
/* clear bss before set_intr_gate with early_idt_handler */
clear_bss();
/* Make NULL pointers segfault */
zap_identity_mappings();
/* Cleanup the over mapped high alias */
cleanup_highmap();
for (i = 0; i < NUM_EXCEPTION_VECTORS; i++) {
#ifdef CONFIG_EARLY_PRINTK
set_intr_gate(i, &early_idt_handlers[i]);
#else
set_intr_gate(i, early_idt_handler);
#endif
}
load_idt((const struct desc_ptr *)&idt_descr);
early_printk("Kernel alive\n");
for (i = 0; i < NR_CPUS; i++)
cpu_pda(i) = &boot_cpu_pda[i];
pda_init(0);
copy_bootdata(__va(real_mode_data));
reserve_early(__pa_symbol(&_text), __pa_symbol(&_end), "TEXT DATA BSS");
#ifdef CONFIG_BLK_DEV_INITRD
/* Reserve INITRD */
if (boot_params.hdr.type_of_loader && boot_params.hdr.ramdisk_image) {
unsigned long ramdisk_image = boot_params.hdr.ramdisk_image;
unsigned long ramdisk_size = boot_params.hdr.ramdisk_size;
unsigned long ramdisk_end = ramdisk_image + ramdisk_size;
reserve_early(ramdisk_image, ramdisk_end, "RAMDISK");
}
#endif
reserve_ebda_region();
reserve_setup_data();
/*
* At this point everything still needed from the boot loader
* or BIOS or kernel text should be early reserved or marked not
* RAM in e820. All other memory is free game.
*/
start_kernel();
}
