// 32bit code to Power On Self Test (POST) a machine.
//
-// Copyright (C) 2008 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2008-2010 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
+#include "virtio-blk.h" // virtio_blk_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 { \
} while (0)
static void
-init_ivt()
+init_ivt(void)
{
dprintf(3, "init ivt\n");
set_irq(0x1a, entry_1a);
set_irq(0x40, entry_40);
+ // INT 60h-66h reserved for user interrupt
+ for (i=0x60; i<=0x66; i++)
+ SET_IVT(i, SEGOFF(0, 0));
+
// 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);
}
static void
-init_bda()
+init_bda(void)
{
dprintf(3, "init bda\n");
memset(bda, 0, sizeof(*bda));
int esize = EBDA_SIZE_START;
- SET_BDA(mem_size_kb, 640 - esize);
+ 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
// Check for memory over 4Gig
u64 high = ((inb_cmos(CMOS_MEM_HIGHMEM_LOW) << 16)
- | (inb_cmos(CMOS_MEM_HIGHMEM_MID) << 24)
+ | ((u32)inb_cmos(CMOS_MEM_HIGHMEM_MID) << 24)
| ((u64)inb_cmos(CMOS_MEM_HIGHMEM_HIGH) << 32));
RamSizeOver4G = high;
add_e820(0x100000000ull, high, E820_RAM);
}
// 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)
+ u32 count = qemu_cfg_e820_entries();
+ if (count) {
+ struct e820_reservation entry;
+ int i;
+
+ for (i = 0; i < count; i++) {
+ qemu_cfg_e820_load_next(&entry);
+ add_e820(entry.address, entry.length, entry.type);
+ }
+ } else if (kvm_para_available()) {
+ // Backwards compatibility - provide hard coded range.
// 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);
+ }
- dprintf(1, "Ram Size=0x%08x\n", RamSize);
+ dprintf(1, "Ram Size=0x%08x (0x%08x%08x high)\n"
+ , RamSize, (u32)(RamSizeOver4G >> 32), (u32)RamSizeOver4G);
}
static void
init_bios_tables(void)
{
- if (CONFIG_COREBOOT)
- // XXX - not supported on coreboot yet.
+ if (CONFIG_COREBOOT) {
+ coreboot_copy_biostable();
return;
+ }
create_pirtable();
acpi_bios_init();
}
+// Initialize hardware devices
+static void
+init_hw(void)
+{
+ usb_setup();
+ ps2port_setup();
+ lpt_setup();
+ serial_setup();
+
+ floppy_setup();
+ ata_setup();
+ ramdisk_setup();
+ virtio_blk_setup();
+}
+
// Main setup code.
static void
-post()
+post(void)
{
+ // Detect and init ram.
init_ivt();
init_bda();
+ memmap_setup();
+ qemu_cfg_port_probe();
+ ram_probe();
+ malloc_setup();
+ thread_setup();
+ // Init base pc hardware.
pic_setup();
timer_setup();
mathcp_setup();
+ // Initialize mtrr
smp_probe_setup();
-
- memmap_setup();
- ram_probe();
mtrr_setup();
- pnp_setup();
- vga_setup();
+ // Initialize pci
+ pci_setup();
+ smm_init();
- kbd_setup();
- lpt_setup();
- serial_setup();
- mouse_setup();
+ // Initialize internal tables
+ boot_setup();
+ drive_setup();
- pci_bios_setup();
- smm_init();
+ // 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();
- memmap_finalize();
- boot_setup();
+ // Run vga option rom
+ vga_setup();
- floppy_drive_setup();
- hard_drive_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();
}
// 32-bit entry point.
-void VISIBLE32
-_start()
+void VISIBLE32FLAT
+_start(void)
{
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();
+ // Disable bootsplash if something has hooked int19.
+ extern void entry_19_official(void);
+ if (GET_IVT(0x19).segoff
+ != SEGOFF(SEG_BIOS, (u32)entry_19_official - BUILD_BIOS_ADDR).segoff)
+ disable_bootsplash();
+
// 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);
}
projects / seabios.git / blobdiff