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target-i386: Move APIC to ICC bus

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It allows APIC to be hotplugged.

 * map APIC's mmio at board level if it is present
 * do not register mmio region for each APIC, since
   only one is used/mapped

Signed-off-by: Igor Mammedov <imammedo@redhat.com>
Signed-off-by: Andreas Färber <afaerber@suse.de>
This commit is contained in:
Igor Mammedov 2013-04-29 19:03:01 +02:00 • committed by Andreas Färber
parent 62fc403f11
commit 53a89e262b
6 changed files with 42 additions and 24 deletions
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18
hw/intc/apic_common.c
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@ -21,6 +21,8 @@
#include "hw/i386/apic_internal.h"
#include "trace.h"
#include "sysemu/kvm.h"
#include "hw/qdev.h"
#include "hw/sysbus.h"
static int apic_irq_delivered;
bool apic_report_tpr_access;
@ -282,12 +284,13 @@ static int apic_load_old(QEMUFile *f, void *opaque, int version_id)
return 0;
}
static int apic_init_common(SysBusDevice *dev)
static int apic_init_common(ICCDevice *dev)
{
APICCommonState *s = APIC_COMMON(dev);
APICCommonClass *info;
static DeviceState *vapic;
static int apic_no;
static bool mmio_registered;
if (apic_no >= MAX_APICS) {
return -1;
@ -296,8 +299,11 @@ static int apic_init_common(SysBusDevice *dev)
info = APIC_COMMON_GET_CLASS(s);
info->init(s);
sysbus_init_mmio(dev, &s->io_memory);
if (!mmio_registered) {
ICCBus *b = ICC_BUS(qdev_get_parent_bus(DEVICE(dev)));
memory_region_add_subregion(b->apic_address_space, 0, &s->io_memory);
mmio_registered = true;
}
/* Note: We need at least 1M to map the VAPIC option ROM */
if (!vapic && s->vapic_control & VAPIC_ENABLE_MASK &&
@ -375,19 +381,19 @@ static Property apic_properties_common[] = {
static void apic_common_class_init(ObjectClass *klass, void *data)
{
SysBusDeviceClass *sc = SYS_BUS_DEVICE_CLASS(klass);
ICCDeviceClass *idc = ICC_DEVICE_CLASS(klass);
DeviceClass *dc = DEVICE_CLASS(klass);
dc->vmsd = &vmstate_apic_common;
dc->reset = apic_reset_common;
dc->no_user = 1;
dc->props = apic_properties_common;
sc->init = apic_init_common;
idc->init = apic_init_common;
}
static const TypeInfo apic_common_type = {
.name = TYPE_APIC_COMMON,
.parent = TYPE_SYS_BUS_DEVICE,
.parent = TYPE_ICC_DEVICE,
.instance_size = sizeof(APICCommonState),
.class_size = sizeof(APICCommonClass),
.class_init = apic_common_class_init,