// 32bit code to Power On Self Test (POST) a machine.
//
-// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2008,2009 Kevin O'Connor <kevin@koconnor.net>
// Copyright (C) 2002 MandrakeSoft S.A.
//
// This file may be distributed under the terms of the GNU LGPLv3 license.
#include "util.h" // memset
#include "biosvar.h" // struct bios_data_area_s
#include "disk.h" // floppy_drive_setup
+#include "ata.h" // ata_setup
#include "memmap.h" // add_e820
#include "pic.h" // pic_setup
#include "pci.h" // create_pirtable
#include "bregs.h" // struct bregs
#include "mptable.h" // mptable_init
#include "boot.h" // IPL
+#include "usb.h" // usb_setup
+#include "smbios.h" // smbios_init
+#include "paravirt.h" // qemu_cfg_port_probe
+#include "ps2port.h" // ps2port_setup
void
__set_irq(int vector, void *loc)
{
- SET_IVT(vector, SEG_BIOS, (u32)loc - BUILD_BIOS_ADDR);
+ SET_IVT(vector, SEGOFF(SEG_BIOS, (u32)loc - BUILD_BIOS_ADDR));
}
#define set_irq(vector, func) do { \
// Initialize software handlers.
set_irq(0x02, entry_02);
set_irq(0x10, entry_10);
- set_irq(0x11, entry_11_official);
- set_irq(0x12, entry_12_official);
+ set_irq(0x11, entry_11);
+ set_irq(0x12, entry_12);
set_irq(0x13, entry_13_official);
set_irq(0x14, entry_14);
set_irq(0x15, entry_15);
// set vector 0x79 to zero
// this is used by 'gardian angel' protection system
- SET_IVT(0x79, 0, 0);
+ SET_IVT(0x79, SEGOFF(0, 0));
__set_irq(0x1E, &diskette_param_table2);
}
struct bios_data_area_s *bda = MAKE_FLATPTR(SEG_BDA, 0);
memset(bda, 0, sizeof(*bda));
- int esize = DIV_ROUND_UP(sizeof(struct extended_bios_data_area_s), 1024);
- SET_BDA(mem_size_kb, 640 - esize);
- u16 eseg = FLATPTR_TO_SEG((640 - esize) * 1024);
+ int esize = EBDA_SIZE_START;
+ SET_BDA(mem_size_kb, BUILD_LOWRAM_END/1024 - esize);
+ u16 eseg = EBDA_SEGMENT_START;
SET_BDA(ebda_seg, eseg);
+ // Init ebda
struct extended_bios_data_area_s *ebda = get_ebda_ptr();
memset(ebda, 0, sizeof(*ebda));
ebda->size = esize;
- SET_IVT(0x41, eseg, offsetof(struct extended_bios_data_area_s, fdpt[0]));
- SET_IVT(0x46, eseg, offsetof(struct extended_bios_data_area_s, fdpt[1]));
}
static void
}
// Don't declare any memory between 0xa0000 and 0x100000
- add_e820(0xa0000, 0x50000, E820_HOLE);
+ add_e820(BUILD_LOWRAM_END, BUILD_BIOS_ADDR-BUILD_LOWRAM_END, E820_HOLE);
// Mark known areas as reserved.
u16 ebda_seg = get_ebda_seg();
, E820_RESERVED);
add_e820(BUILD_BIOS_ADDR, BUILD_BIOS_SIZE, E820_RESERVED);
- if (CONFIG_KVM)
+ if (kvm_para_available())
// 4 pages before the bios, 3 pages for vmx tss pages, the
// other page for EPT real mode pagetable
add_e820(0xfffbc000, 4*4096, E820_RESERVED);
static void
init_bios_tables(void)
{
- if (CONFIG_COREBOOT)
- // XXX - not supported on coreboot yet.
+ if (CONFIG_COREBOOT) {
+ coreboot_copy_biostable();
return;
+ }
create_pirtable();
static void
post()
{
+ // Detect and init ram.
init_ivt();
init_bda();
+ memmap_setup();
+ ram_probe();
+ malloc_setup();
+ thread_setup();
+ // Init base pc hardware.
pic_setup();
timer_setup();
mathcp_setup();
+ // Initialize smp
+ qemu_cfg_port_probe();
smp_probe_setup();
-
- memmap_setup();
- ram_probe();
mtrr_setup();
+ smp_probe();
- pnp_setup();
- vga_setup();
+ // Initialize pci
+ pci_setup();
+ smm_init();
+ // Setup interfaces that option roms may need
+ pmm_setup();
+ pnp_setup();
kbd_setup();
- lpt_setup();
- serial_setup();
mouse_setup();
+ init_bios_tables();
- pci_bios_setup();
- smm_init();
+ // Run vga option rom (if running synchronously)
+ if (!CONFIG_THREADS || !CONFIG_THREAD_OPTIONROMS)
+ vga_setup();
- init_bios_tables();
- memmap_finalize();
+ // Initialize hardware devices
+ usb_setup();
+ ps2port_setup();
+ lpt_setup();
+ serial_setup();
boot_setup();
+ drive_setup();
+ cdemu_setup();
+ floppy_setup();
+ ata_setup();
+ ramdisk_setup();
+
+ // Run option roms
+ if (CONFIG_THREADS && CONFIG_THREAD_OPTIONROMS) {
+ // Run option roms while hw init still in progress.
+ vga_setup();
+ optionrom_setup();
+ wait_threads();
+ } else {
+ // Wait for hw init to finish and run non-vga option roms.
+ wait_threads();
+ optionrom_setup();
+ }
- floppy_drive_setup();
- hard_drive_setup();
+ // Run BCVs and show optional boot menu
+ boot_prep();
- optionrom_setup();
+ // Finalize data structures before boot
+ pmm_finalize();
+ malloc_finalize();
+ memmap_finalize();
}
// 32-bit entry point.
init_dma();
debug_serial_setup();
- dprintf(1, "Start bios\n");
+ dprintf(1, "Start bios (version %s)\n", VERSION);
// Allow writes to modify bios area (0xf0000)
make_bios_writable();
// Perform main setup code.
post();
- // Run BCVs
- boot_prep();
-
// Setup bios checksum.
- BiosChecksum = -checksum((u8*)BUILD_BIOS_ADDR, BUILD_BIOS_SIZE - 1);
+ BiosChecksum -= checksum((u8*)BUILD_BIOS_ADDR, BUILD_BIOS_SIZE);
- // Prep for boot process.
+ // Write protect bios memory.
make_bios_readonly();
// Invoke int 19 to start boot process.
dprintf(3, "Jump to int19\n");
struct bregs br;
memset(&br, 0, sizeof(br));
+ br.flags = F_IF;
call16_int(0x19, &br);
}
-
-// Ughh - some older gcc compilers have a bug which causes VISIBLE32
-// functions to not be exported as a global variable - force _start
-// to be global here.
-asm(".global _start");
projects / seabios.git / blobdiff