// 32bit code to Power On Self Test (POST) a machine.
//
-// Copyright (C) 2008-2010 Kevin O'Connor <kevin@koconnor.net>
+// Copyright (C) 2008-2013 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 "esp-scsi.h" // esp_scsi_setup
#include "megasas.h" // megasas_setup
+
/****************************************************************
* BIOS init
****************************************************************/
+static void
+ramsize_preinit(void)
+{
+ dprintf(3, "Find memory size\n");
+ if (CONFIG_COREBOOT) {
+ coreboot_preinit();
+ } else if (usingXen()) {
+ xen_ramsize_preinit();
+ } else {
+ // On emulators, get memory size from nvram.
+ u32 rs = ((inb_cmos(CMOS_MEM_EXTMEM2_LOW) << 16)
+ | (inb_cmos(CMOS_MEM_EXTMEM2_HIGH) << 24));
+ if (rs)
+ rs += 16 * 1024 * 1024;
+ else
+ rs = (((inb_cmos(CMOS_MEM_EXTMEM_LOW) << 10)
+ | (inb_cmos(CMOS_MEM_EXTMEM_HIGH) << 18))
+ + 1 * 1024 * 1024);
+ RamSize = rs;
+ add_e820(0, rs, E820_RAM);
+
+ // Check for memory over 4Gig
+ u64 high = ((inb_cmos(CMOS_MEM_HIGHMEM_LOW) << 16)
+ | ((u32)inb_cmos(CMOS_MEM_HIGHMEM_MID) << 24)
+ | ((u64)inb_cmos(CMOS_MEM_HIGHMEM_HIGH) << 32));
+ RamSizeOver4G = high;
+ add_e820(0x100000000ull, high, E820_RAM);
+
+ /* reserve 256KB BIOS area at the end of 4 GB */
+ add_e820(0xfffc0000, 256*1024, E820_RESERVED);
+ }
+
+ // Don't declare any memory between 0xa0000 and 0x100000
+ add_e820(BUILD_LOWRAM_END, BUILD_BIOS_ADDR-BUILD_LOWRAM_END, E820_HOLE);
+
+ // Mark known areas as reserved.
+ add_e820(BUILD_BIOS_ADDR, BUILD_BIOS_SIZE, E820_RESERVED);
+
+ 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 (0x%016llx high)\n", RamSize, RamSizeOver4G);
+}
+
static void
ivt_init(void)
{
}
static void
-ramsize_preinit(void)
+interface_init(void)
{
- dprintf(3, "Find memory size\n");
- if (CONFIG_COREBOOT) {
- coreboot_preinit();
- } else if (usingXen()) {
- xen_ramsize_preinit();
- } else {
- // On emulators, get memory size from nvram.
- u32 rs = ((inb_cmos(CMOS_MEM_EXTMEM2_LOW) << 16)
- | (inb_cmos(CMOS_MEM_EXTMEM2_HIGH) << 24));
- if (rs)
- rs += 16 * 1024 * 1024;
- else
- rs = (((inb_cmos(CMOS_MEM_EXTMEM_LOW) << 10)
- | (inb_cmos(CMOS_MEM_EXTMEM_HIGH) << 18))
- + 1 * 1024 * 1024);
- RamSize = rs;
- add_e820(0, rs, E820_RAM);
-
- // Check for memory over 4Gig
- u64 high = ((inb_cmos(CMOS_MEM_HIGHMEM_LOW) << 16)
- | ((u32)inb_cmos(CMOS_MEM_HIGHMEM_MID) << 24)
- | ((u64)inb_cmos(CMOS_MEM_HIGHMEM_HIGH) << 32));
- RamSizeOver4G = high;
- add_e820(0x100000000ull, high, E820_RAM);
-
- /* reserve 256KB BIOS area at the end of 4 GB */
- add_e820(0xfffc0000, 256*1024, E820_RESERVED);
- }
-
- // Don't declare any memory between 0xa0000 and 0x100000
- add_e820(BUILD_LOWRAM_END, BUILD_BIOS_ADDR-BUILD_LOWRAM_END, E820_HOLE);
-
- // Mark known areas as reserved.
- add_e820(BUILD_BIOS_ADDR, BUILD_BIOS_SIZE, E820_RESERVED);
-
- 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 (0x%016llx high)\n", RamSize, RamSizeOver4G);
-}
-
-static void
-biostable_setup(void)
-{
- if (CONFIG_COREBOOT) {
- coreboot_biostable_setup();
- return;
- }
- if (usingXen()) {
- xen_biostable_setup();
- return;
- }
-
- pirtable_setup();
+ // Running at new code address - do code relocation fixups
+ malloc_fixupreloc_init();
- mptable_setup();
+ // Setup romfile items.
+ qemu_romfile_init();
+ coreboot_cbfs_init();
- smbios_setup();
+ // Setup ivt/bda/ebda
+ ivt_init();
+ bda_init();
- acpi_setup();
+ // Other interfaces
+ mathcp_init();
+ boot_init();
+ bios32_init();
+ pmm_init();
+ pnp_init();
+ kbd_init();
+ mouse_init();
}
// Initialize hardware devices
megasas_setup();
}
-// Begin the boot process by invoking an int0x19 in 16bit mode.
-void VISIBLE32FLAT
-startBoot(void)
+static void
+biostable_setup(void)
{
- // Clear low-memory allocations (required by PMM spec).
- memset((void*)BUILD_STACK_ADDR, 0, BUILD_EBDA_MINIMUM - BUILD_STACK_ADDR);
+ if (CONFIG_COREBOOT) {
+ coreboot_biostable_setup();
+ return;
+ }
+ if (usingXen()) {
+ xen_biostable_setup();
+ return;
+ }
- dprintf(3, "Jump to int19\n");
- struct bregs br;
- memset(&br, 0, sizeof(br));
- br.flags = F_IF;
- call16_int(0x19, &br);
+ pirtable_setup();
+
+ mptable_setup();
+
+ smbios_setup();
+
+ acpi_setup();
}
-// Main setup code.
static void
-maininit(void)
+platform_hardware_setup(void)
{
- // Setup romfile items.
- qemu_romfile_init();
- coreboot_cbfs_init();
-
- // Setup ivt/bda/ebda
- ivt_init();
- bda_init();
-
// Init base pc hardware.
pic_setup();
timer_setup();
- mathcp_init();
// Initialize pci
pci_setup();
// Setup Xen hypercalls
xen_hypercall_setup();
- // Initialize internal tables
- boot_init();
-
// Start hardware initialization (if optionrom threading)
if (CONFIG_THREADS && CONFIG_THREAD_OPTIONROMS)
device_hardware_setup();
// Find and initialize other cpus
smp_setup();
- // Setup interfaces that option roms may need
- bios32_init();
- pmm_init();
- pnp_init();
- kbd_init();
- mouse_init();
+ // Setup external BIOS interface tables
biostable_setup();
+}
+
+static void
+prepareboot(void)
+{
+ // Run BCVs
+ bcv_prepboot();
+
+ // Finalize data structures before boot
+ cdrom_prepboot();
+ pmm_prepboot();
+ malloc_prepboot();
+ memmap_prepboot();
+
+ // Setup bios checksum.
+ BiosChecksum -= checksum((u8*)BUILD_BIOS_ADDR, BUILD_BIOS_SIZE);
+}
+
+// Begin the boot process by invoking an int0x19 in 16bit mode.
+void VISIBLE32FLAT
+startBoot(void)
+{
+ // Clear low-memory allocations (required by PMM spec).
+ memset((void*)BUILD_STACK_ADDR, 0, BUILD_EBDA_MINIMUM - BUILD_STACK_ADDR);
+
+ dprintf(3, "Jump to int19\n");
+ struct bregs br;
+ memset(&br, 0, sizeof(br));
+ br.flags = F_IF;
+ call16_int(0x19, &br);
+}
+
+// Main setup code.
+static void
+maininit(void)
+{
+ // Initialize internal interfaces.
+ interface_init();
+
+ // Setup platform devices.
+ platform_hardware_setup();
// Run vga option rom
vgarom_setup();
- // SMBIOS tables and VGA console are ready, print UUID
- display_uuid();
-
// Do hardware initialization (if running synchronously)
if (!CONFIG_THREADS || !CONFIG_THREAD_OPTIONROMS) {
device_hardware_setup();
// Run option roms
optionrom_setup();
- // Run BCVs and show optional boot menu
- boot_prepboot();
-
- // Finalize data structures before boot
- cdrom_prepboot();
- pmm_prepboot();
- malloc_prepboot();
- memmap_prepboot();
+ // Allow user to modify overall boot order.
+ interactive_bootmenu();
+ wait_threads();
- // Setup bios checksum.
- BiosChecksum -= checksum((u8*)BUILD_BIOS_ADDR, BUILD_BIOS_SIZE);
+ // Prepare for boot.
+ prepareboot();
// Write protect bios memory.
make_bios_readonly();
* POST entry and code relocation
****************************************************************/
-// Relocation fixup code that runs at new address after relocation complete.
-static void
-afterReloc(void)
-{
- // Running at new code address - do code relocation fixups
- malloc_fixupreloc_init();
-
- // Move low-memory initial variable content to new location.
- extern u8 datalow_start[], datalow_end[], final_datalow_start[];
- memmove(final_datalow_start, datalow_start, datalow_end - datalow_start);
-
- // Run main code
- maininit();
-}
-
// Update given relocs for the code at 'dest' with a given 'delta'
static void
updateRelocs(void *dest, u32 *rstart, u32 *rend, u32 delta)
updateRelocs(code32flat_start, _reloc_init_start, _reloc_init_end, delta);
// Call maininit() in relocated code.
- void (*func)(void) = (void*)afterReloc + delta;
+ void (*func)(void) = (void*)maininit + delta;
barrier();
func();
}
projects / seabios.git / commitdiff