void
qemu_platform_setup(void)
{
if (!CONFIG_QEMU)
return;
if (runningOnXen()) {
pci_probe_devices();
xen_hypercall_setup();
xen_biostable_setup();
return;
}
// Initialize pci
pci_setup();
smm_device_setup();
smm_setup();
// Initialize mtrr and smp
mtrr_setup();
smp_setup();
// Create bios tables
pirtable_setup();
mptable_setup();
smbios_setup();
if (CONFIG_FW_ROMFILE_LOAD) {
int loader_err;
dprintf(3, "load ACPI tables\n");
loader_err = romfile_loader_execute("etc/table-loader");
RsdpAddr = find_acpi_rsdp();
if (RsdpAddr)
return;
/* If present, loader should have installed an RSDP.
* Not installed? We might still be able to continue
* using the builtin RSDP.
*/
if (!loader_err)
warn_internalerror();
}
acpi_setup();
}
void main_bsp(void)
{
// Print header
screen_write("Hydrogen v0.2b - http://github.com/farok/H2", 0, 0);
screen_write("Copyright (c) 2012 by Lukas Heidemann", 0, 1);
screen_write("-------------------------------------------------", 0, 2);
// Load the IDT
idt_load(idt_address, IDT_LENGTH);
idt_setup_loader();
// Initialize Hydrogen info tables and parse the multiboot tables
info_init();
multiboot_parse();
// Setup the heap
heap_init();
// Now parse the ACPI tables and analyze the IO APICs
acpi_parse();
ioapic_analyze();
// Find, check and load the kernel binary
kernel_find();
kernel_check();
elf64_load(kernel_binary);
kernel_analyze();
// Initialize interrupt controllers
lapic_detect();
lapic_setup();
ioapic_setup_loader();
pic_setup();
// Calibrate the LAPIC timer
lapic_timer_calibrate();
// Boot APs
info_cpu[lapic_id()].flags |= HY_INFO_CPU_FLAG_BSP;
smp_setup();
// Setup IDT and IOAPIC according to kernel header
idt_setup_kernel();
ioapic_setup_kernel();
// Setup fast syscall support
syscall_init();
// Setup mapping
kernel_map_info();
kernel_map_stack();
kernel_map_idt();
kernel_map_gdt();
// Set free address
info_root->free_paddr = (heap_top + 0xFFF) & ~0xFFF;
// Lower main entry barrier and jump to the kernel entry point
main_entry_barrier = 0;
kernel_enter_bsp();
}
