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more generic i8259 support

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git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1487 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-07-02 18:11:44 +00:00
parent 73133662c6
commit 3de388f676
8 changed files with 141 additions and 77 deletions
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29
hw/pc.c
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@ -65,6 +65,33 @@ uint64_t cpu_get_tsc(CPUX86State *env)
return qemu_get_clock(vm_clock);
}
/* IRQ handling */
int cpu_get_pic_interrupt(CPUState *env)
{
int intno;
#ifdef TARGET_X86_64
intno = apic_get_interrupt(env);
if (intno >= 0) {
/* set irq request if a PIC irq is still pending */
/* XXX: improve that */
pic_update_irq(isa_pic);
return intno;
}
#endif
/* read the irq from the PIC */
intno = pic_read_irq(isa_pic);
return intno;
}
static void pic_irq_request(void *opaque, int level)
{
if (level)
cpu_interrupt(cpu_single_env, CPU_INTERRUPT_HARD);
else
cpu_reset_interrupt(cpu_single_env, CPU_INTERRUPT_HARD);
}
/* PC cmos mappings */
#define REG_EQUIPMENT_BYTE 0x14
@ -532,7 +559,7 @@ static void pc_init1(int ram_size, int vga_ram_size, int boot_device,
if (pci_enabled)
apic_init(cpu_single_env);
pic_init();
isa_pic = pic_init(pic_irq_request, cpu_single_env);
pit = pit_init(0x40, 0);
for(i = 0; i < MAX_SERIAL_PORTS; i++) {