75,12 → 75,12 |
l_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, |
FRAME_ATOMIC | FRAME_KA); |
if (!l_apic_address) |
panic("cannot allocate address for l_apic\n"); |
panic("Cannot allocate address for l_apic."); |
|
io_apic_address = (uintptr_t) frame_alloc(ONE_FRAME, |
FRAME_ATOMIC | FRAME_KA); |
if (!io_apic_address) |
panic("cannot allocate address for io_apic\n"); |
panic("Cannot allocate address for io_apic."); |
|
if (config.cpu_count > 1) { |
page_mapping_insert(AS_KERNEL, l_apic_address, |
122,8 → 122,8 |
* Save 0xa to address 0xf of the CMOS RAM. |
* BIOS will not do the POST after the INIT signal. |
*/ |
outb(0x70, 0xf); |
outb(0x71, 0xa); |
pio_write_8((ioport8_t *)0x70, 0xf); |
pio_write_8((ioport8_t *)0x71, 0xa); |
|
pic_disable_irqs(0xffff); |
apic_init(); |
154,14 → 154,18 |
/* |
* Prepare new GDT for CPU in question. |
*/ |
|
/* XXX Flag FRAME_LOW_4_GiB was removed temporarily, |
* it needs to be replaced by a generic fuctionality of |
* the memory subsystem |
*/ |
gdt_new = (struct descriptor *) malloc(GDT_ITEMS * |
sizeof(struct descriptor), FRAME_ATOMIC); |
if (!gdt_new) |
panic("couldn't allocate memory for GDT\n"); |
panic("Cannot allocate memory for GDT."); |
|
memcpy(gdt_new, gdt, GDT_ITEMS * sizeof(struct descriptor)); |
memsetb((uintptr_t)(&gdt_new[TSS_DES]), |
sizeof(struct descriptor), 0); |
memsetb(&gdt_new[TSS_DES], sizeof(struct descriptor), 0); |
protected_ap_gdtr.limit = GDT_ITEMS * sizeof(struct descriptor); |
protected_ap_gdtr.base = KA2PA((uintptr_t) gdt_new); |
gdtr.base = (uintptr_t) gdt_new; |