int lib_get_sysinfo(void)
{
int ret;
/* Get the CPU speed (for delays). */
lib_sysinfo.cpu_khz = get_cpu_speed();
#if IS_ENABLED(CONFIG_LP_MULTIBOOT)
/* Get the information from the multiboot tables,
* if they exist */
get_multiboot_info(&lib_sysinfo);
#endif
/* Get information from the coreboot tables,
* if they exist */
ret = get_coreboot_info(&lib_sysinfo);
if (!lib_sysinfo.n_memranges) {
/* If we can't get a good memory range, use the default. */
lib_sysinfo.n_memranges = 2;
lib_sysinfo.memrange[0].base = 0;
lib_sysinfo.memrange[0].size = 640 * 1024;
lib_sysinfo.memrange[0].type = CB_MEM_RAM;
lib_sysinfo.memrange[1].base = 1024 * 1024;
lib_sysinfo.memrange[1].size = 31 * 1024 * 1024;
lib_sysinfo.memrange[1].type = CB_MEM_RAM;
}
return ret;
}
int arch_cpu_init(void)
{
int ret = get_coreboot_info(&lib_sysinfo);
if (ret != 0) {
printf("Failed to parse coreboot tables.\n");
return ret;
}
timestamp_init();
return x86_cpu_init_f();
}
int lib_get_sysinfo(void)
{
int ret;
/* Get the CPU speed (for delays). */
lib_sysinfo.cpu_khz = get_cpu_speed();
/* Get information from the coreboot tables,
* if they exist */
ret = get_coreboot_info(&lib_sysinfo);
/* If we can't get a good memory range, use the default. */
if (!lib_sysinfo.n_memranges) {
lib_sysinfo.n_memranges = 1;
lib_sysinfo.memrange[0].base = 0;
lib_sysinfo.memrange[0].size = 1024 * 1024;
lib_sysinfo.memrange[0].type = CB_MEM_RAM;
}
return ret;
}
void kernel_init(multiboot_info_t *mboot_info)
{
extern char __start_bss[], __stop_bss[];
memset(__start_bss, 0, __stop_bss - __start_bss);
/* mboot_info is a physical address. while some arches currently have the
* lower memory mapped, everyone should have it mapped at kernbase by now.
* also, it might be in 'free' memory, so once we start dynamically using
* memory, we may clobber it. */
multiboot_kaddr = (struct multiboot_info*)((physaddr_t)mboot_info
+ KERNBASE);
extract_multiboot_cmdline(multiboot_kaddr);
cons_init();
print_cpuinfo();
printk("Boot Command Line: '%s'\n", boot_cmdline);
exception_table_init();
cache_init(); // Determine systems's cache properties
pmem_init(multiboot_kaddr);
kmem_cache_init(); // Sets up slab allocator
kmalloc_init();
hashtable_init();
radix_init();
cache_color_alloc_init(); // Inits data structs
colored_page_alloc_init(); // Allocates colors for agnostic processes
acpiinit();
topology_init();
kthread_init(); /* might need to tweak when this happens */
vmr_init();
file_init();
page_check();
idt_init();
kernel_msg_init();
timer_init();
vfs_init();
devfs_init();
train_timing();
kb_buf_init(&cons_buf);
arch_init();
block_init();
enable_irq();
run_linker_funcs();
/* reset/init devtab after linker funcs 3 and 4. these run NIC and medium
* pre-inits, which need to happen before devether. */
devtabreset();
devtabinit();
#ifdef CONFIG_EXT2FS
mount_fs(&ext2_fs_type, "/dev/ramdisk", "/mnt", 0);
#endif /* CONFIG_EXT2FS */
#ifdef CONFIG_ETH_AUDIO
eth_audio_init();
#endif /* CONFIG_ETH_AUDIO */
get_coreboot_info(&sysinfo);
booting = 0;
#ifdef CONFIG_RUN_INIT_SCRIPT
if (run_init_script()) {
printk("Configured to run init script, but no script specified!\n");
manager();
}
#else
manager();
#endif
}
static void
corebootinit(void)
{
get_coreboot_info(&cbinfo);
}