// Main setup code.
static void
maininit(void)
{
// Setup romfile items.
qemu_cfg_romfile_setup();
coreboot_cbfs_setup();
// Setup ivt/bda/ebda
init_ivt();
init_bda();
// Init base pc hardware.
pic_setup();
timer_setup();
mathcp_setup();
// Initialize pci
pci_setup();
smm_init();
// Initialize mtrr
mtrr_setup();
// Setup Xen hypercalls
xen_init_hypercalls();
// Initialize internal tables
boot_setup();
// Start hardware initialization (if optionrom threading)
if (CONFIG_THREADS && CONFIG_THREAD_OPTIONROMS)
init_hw();
// Find and initialize other cpus
smp_probe();
// Setup interfaces that option roms may need
bios32_setup();
pmm_setup();
pnp_setup();
kbd_setup();
mouse_setup();
init_bios_tables();
// Run vga option rom
vga_setup();
// Do hardware initialization (if running synchronously)
if (!CONFIG_THREADS || !CONFIG_THREAD_OPTIONROMS) {
init_hw();
wait_threads();
}
// Run option roms
optionrom_setup();
// Run BCVs and show optional boot menu
boot_prep();
// Finalize data structures before boot
cdemu_setup();
pmm_finalize();
malloc_finalize();
memmap_finalize();
// Setup bios checksum.
BiosChecksum -= checksum((u8*)BUILD_BIOS_ADDR, BUILD_BIOS_SIZE);
// Write protect bios memory.
make_bios_readonly();
// Invoke int 19 to start boot process.
startBoot();
}
void initialize_cpus(struct bus *cpu_bus)
{
struct device_path cpu_path;
struct cpu_info *info;
/* Find the info struct for this CPU */
info = cpu_info();
if (need_lapic_init()) {
/* Ensure the local APIC is enabled */
enable_lapic();
/* Get the device path of the boot CPU */
cpu_path.type = DEVICE_PATH_APIC;
cpu_path.apic.apic_id = lapicid();
} else {
/* Get the device path of the boot CPU */
cpu_path.type = DEVICE_PATH_CPU;
cpu_path.cpu.id = 0;
}
/* Find the device structure for the boot CPU */
info->cpu = alloc_find_dev(cpu_bus, &cpu_path);
// why here? In case some day we can start core1 in amd_sibling_init
if (is_smp_boot())
copy_secondary_start_to_lowest_1M();
if (!IS_ENABLED(CONFIG_SERIALIZED_SMM_INITIALIZATION))
smm_init();
/* start all aps at first, so we can init ECC all together */
if (is_smp_boot() && IS_ENABLED(CONFIG_PARALLEL_CPU_INIT))
start_other_cpus(cpu_bus, info->cpu);
/* Initialize the bootstrap processor */
cpu_initialize(0);
if (is_smp_boot() && !IS_ENABLED(CONFIG_PARALLEL_CPU_INIT)) {
start_other_cpus(cpu_bus, info->cpu);
/* Now wait the rest of the cpus stop*/
wait_other_cpus_stop(cpu_bus);
}
if (IS_ENABLED(CONFIG_SERIALIZED_SMM_INITIALIZATION)) {
/* At this point, all APs are sleeping:
* smm_init() will queue a pending SMI on all cpus
* and smm_other_cpus() will start them one by one */
smm_init();
if (is_smp_boot()) {
last_cpu_index = 0;
smm_other_cpus(cpu_bus, info->cpu);
}
}
smm_init_completion();
if (is_smp_boot())
recover_lowest_1M();
}
