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EXTINT delivery mode support for I/O APIC (Filip Navara) 

git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@1522 c046a42c-6fe2-441c-8c8c-71466251a162
This commit is contained in:
bellard 2005-07-23 21:43:15 +00:00
parent 45bbbb466c
commit b1fc0348b1
1 changed files with 19 additions and 11 deletions
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30
hw/apic.c
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@ -96,7 +96,6 @@ struct IOAPICState {
static int apic_io_memory;
static APICState *first_local_apic = NULL;
static int last_apic_id = 0;
static IOAPICState *ioapic_state;
static void apic_init_ipi(APICState *s);
static void apic_set_irq(APICState *s, int vector_num, int trigger_mode);
@ -127,7 +126,7 @@ static void apic_bus_deliver(uint32_t deliver_bitmask, uint8_t delivery_mode,
return;
case APIC_DM_EXTINT:
/* XXX: implement */
/* handled in I/O APIC code */
break;
default:
@ -754,24 +753,34 @@ int apic_init(CPUState *env)
static void ioapic_service(IOAPICState *s)
{
uint8_t i;
uint8_t trig_mode;
uint8_t vector;
uint8_t delivery_mode;
uint32_t mask;
uint64_t entry;
uint8_t dest;
uint8_t dest_mode;
uint8_t polarity;
for (vector = 0; vector < IOAPIC_NUM_PINS; vector++) {
mask = 1 << vector;
for (i = 0; i < IOAPIC_NUM_PINS; i++) {
mask = 1 << i;
if (s->irr & mask) {
entry = s->ioredtbl[vector];
entry = s->ioredtbl[i];
if (!(entry & APIC_LVT_MASKED)) {
if (!((entry >> 15) & 1))
s->irr &= ~mask;
trig_mode = ((entry >> 15) & 1);
dest = entry >> 56;
dest_mode = (entry >> 11) & 1;
delivery_mode = (entry >> 8) & 7;
polarity = (entry >> 13) & 1;
if (trig_mode == APIC_TRIGGER_EDGE)
s->irr &= ~mask;
if (delivery_mode == APIC_DM_EXTINT)
vector = pic_read_irq(isa_pic);
else
vector = entry & 0xff;
apic_bus_deliver(apic_get_delivery_bitmask(dest, dest_mode),
(entry >> 8) & 7, entry & 0xff,
(entry >> 13) & 1, (entry >> 15) & 1);
delivery_mode, vector, polarity, trig_mode);
}
}
}
@ -930,10 +939,9 @@ IOAPICState *ioapic_init(void)
IOAPICState *s;
int io_memory;
s = malloc(sizeof(IOAPICState));
s = qemu_mallocz(sizeof(IOAPICState));
if (!s)
return NULL;
ioapic_state = s;
ioapic_reset(s);
s->id = last_apic_id++;