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authorIgor Mammedov <imammedo@redhat.com>2013-04-29 19:03:01 +0200
committerAndreas Färber <afaerber@suse.de>2013-05-01 13:06:07 +0200
commit53a89e262bd3e97b2da3afec0a60e5466770ae8c (patch)
treebaf6fba30104868f8a3a20f92b0d74b71aa9a4c6 /hw/intc
parent62fc403f11523169eb4264de31279745f48e3ecc (diff)
target-i386: Move APIC to ICC bus
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>
Diffstat (limited to 'hw/intc')
-rw-r--r--hw/intc/apic_common.c18
1 files changed, 12 insertions, 6 deletions
diff --git a/hw/intc/apic_common.c b/hw/intc/apic_common.c
index e0ae07afd5..b03e904a7a 100644
--- a/hw/intc/apic_common.c
+++ b/hw/intc/apic_common.c
@@ -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,