summaryrefslogtreecommitdiffstats
path: root/hw/intc
diff options
context:
space:
mode:
authorAlexey Kardashevskiy2013-09-26 08:18:42 +0200
committerAlexander Graf2013-10-25 23:25:47 +0200
commit5a3d7b23ba41b4884b43b6bc936ea18f999d5c6b (patch)
treebccf204c7c8fe622aca1236128a2b7b39d5b070a /hw/intc
parentxics: add missing const specifiers to TypeInfo (diff)
downloadqemu-5a3d7b23ba41b4884b43b6bc936ea18f999d5c6b.tar.gz
qemu-5a3d7b23ba41b4884b43b6bc936ea18f999d5c6b.tar.xz
qemu-5a3d7b23ba41b4884b43b6bc936ea18f999d5c6b.zip
xics: split to xics and xics-common
The upcoming XICS-KVM support will use bits of emulated XICS code. So this introduces new level of hierarchy - "xics-common" class. Both emulated XICS and XICS-KVM will inherit from it and override class callbacks when required. The new "xics-common" class implements: 1. replaces static "nr_irqs" and "nr_servers" properties with the dynamic ones and adds callbacks to be executed when properties are set. 2. xics_cpu_setup() callback renamed to xics_common_cpu_setup() as it is a common part for both XICS'es 3. xics_reset() renamed to xics_common_reset() for the same reason. The emulated XICS changes: 1. the part of xics_realize() which creates ICPs is moved to the "nr_servers" property callback as realize() is too late to create/initialize devices and instance_init() is too early to create devices as the number of child devices comes via the "nr_servers" property. 2. added ics_initfn() which does a little part of what xics_realize() did. Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru> Reviewed-by: Alexander Graf <agraf@suse.de> Signed-off-by: Alexander Graf <agraf@suse.de>
Diffstat (limited to 'hw/intc')
-rw-r--r--hw/intc/xics.c156
1 files changed, 136 insertions, 20 deletions
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index c90eb0aa12..5ed2618769 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -30,6 +30,7 @@
#include "hw/ppc/spapr.h"
#include "hw/ppc/xics.h"
#include "qemu/error-report.h"
+#include "qapi/visitor.h"
void xics_cpu_setup(XICSState *icp, PowerPCCPU *cpu)
{
@@ -55,9 +56,12 @@ void xics_cpu_setup(XICSState *icp, PowerPCCPU *cpu)
}
}
-static void xics_reset(DeviceState *d)
+/*
+ * XICS Common class - parent for emulated XICS and KVM-XICS
+ */
+static void xics_common_reset(DeviceState *d)
{
- XICSState *icp = XICS(d);
+ XICSState *icp = XICS_COMMON(d);
int i;
for (i = 0; i < icp->nr_servers; i++) {
@@ -67,6 +71,99 @@ static void xics_reset(DeviceState *d)
device_reset(DEVICE(icp->ics));
}
+static void xics_prop_get_nr_irqs(Object *obj, Visitor *v,
+ void *opaque, const char *name, Error **errp)
+{
+ XICSState *icp = XICS_COMMON(obj);
+ int64_t value = icp->nr_irqs;
+
+ visit_type_int(v, &value, name, errp);
+}
+
+static void xics_prop_set_nr_irqs(Object *obj, Visitor *v,
+ void *opaque, const char *name, Error **errp)
+{
+ XICSState *icp = XICS_COMMON(obj);
+ XICSStateClass *info = XICS_COMMON_GET_CLASS(icp);
+ Error *error = NULL;
+ int64_t value;
+
+ visit_type_int(v, &value, name, &error);
+ if (error) {
+ error_propagate(errp, error);
+ return;
+ }
+ if (icp->nr_irqs) {
+ error_setg(errp, "Number of interrupts is already set to %u",
+ icp->nr_irqs);
+ return;
+ }
+
+ assert(info->set_nr_irqs);
+ assert(icp->ics);
+ info->set_nr_irqs(icp, value, errp);
+}
+
+static void xics_prop_get_nr_servers(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ XICSState *icp = XICS_COMMON(obj);
+ int64_t value = icp->nr_servers;
+
+ visit_type_int(v, &value, name, errp);
+}
+
+static void xics_prop_set_nr_servers(Object *obj, Visitor *v,
+ void *opaque, const char *name,
+ Error **errp)
+{
+ XICSState *icp = XICS_COMMON(obj);
+ XICSStateClass *info = XICS_COMMON_GET_CLASS(icp);
+ Error *error = NULL;
+ int64_t value;
+
+ visit_type_int(v, &value, name, &error);
+ if (error) {
+ error_propagate(errp, error);
+ return;
+ }
+ if (icp->nr_servers) {
+ error_setg(errp, "Number of servers is already set to %u",
+ icp->nr_servers);
+ return;
+ }
+
+ assert(info->set_nr_servers);
+ info->set_nr_servers(icp, value, errp);
+}
+
+static void xics_common_initfn(Object *obj)
+{
+ object_property_add(obj, "nr_irqs", "int",
+ xics_prop_get_nr_irqs, xics_prop_set_nr_irqs,
+ NULL, NULL, NULL);
+ object_property_add(obj, "nr_servers", "int",
+ xics_prop_get_nr_servers, xics_prop_set_nr_servers,
+ NULL, NULL, NULL);
+}
+
+static void xics_common_class_init(ObjectClass *oc, void *data)
+{
+ DeviceClass *dc = DEVICE_CLASS(oc);
+
+ dc->reset = xics_common_reset;
+}
+
+static const TypeInfo xics_common_info = {
+ .name = TYPE_XICS_COMMON,
+ .parent = TYPE_SYS_BUS_DEVICE,
+ .instance_size = sizeof(XICSState),
+ .class_size = sizeof(XICSStateClass),
+ .instance_init = xics_common_initfn,
+ .class_init = xics_common_class_init,
+};
+
/*
* ICP: Presentation layer
*/
@@ -479,6 +576,13 @@ static const VMStateDescription vmstate_ics = {
},
};
+static void ics_initfn(Object *obj)
+{
+ ICSState *ics = ICS(obj);
+
+ ics->offset = XICS_IRQ_BASE;
+}
+
static void ics_realize(DeviceState *dev, Error **errp)
{
ICSState *ics = ICS(dev);
@@ -509,6 +613,7 @@ static const TypeInfo ics_info = {
.instance_size = sizeof(ICSState),
.class_init = ics_class_init,
.class_size = sizeof(ICSStateClass),
+ .instance_init = ics_initfn,
};
/*
@@ -689,10 +794,31 @@ static void rtas_int_on(PowerPCCPU *cpu, sPAPREnvironment *spapr,
* XICS
*/
+static void xics_set_nr_irqs(XICSState *icp, uint32_t nr_irqs, Error **errp)
+{
+ icp->nr_irqs = icp->ics->nr_irqs = nr_irqs;
+}
+
+static void xics_set_nr_servers(XICSState *icp, uint32_t nr_servers,
+ Error **errp)
+{
+ int i;
+
+ icp->nr_servers = nr_servers;
+
+ icp->ss = g_malloc0(icp->nr_servers*sizeof(ICPState));
+ for (i = 0; i < icp->nr_servers; i++) {
+ char buffer[32];
+ object_initialize(&icp->ss[i], sizeof(icp->ss[i]), TYPE_ICP);
+ snprintf(buffer, sizeof(buffer), "icp[%d]", i);
+ object_property_add_child(OBJECT(icp), buffer, OBJECT(&icp->ss[i]),
+ errp);
+ }
+}
+
static void xics_realize(DeviceState *dev, Error **errp)
{
XICSState *icp = XICS(dev);
- ICSState *ics = icp->ics;
Error *error = NULL;
int i;
@@ -712,21 +838,13 @@ static void xics_realize(DeviceState *dev, Error **errp)
spapr_register_hypercall(H_XIRR, h_xirr);
spapr_register_hypercall(H_EOI, h_eoi);
- ics->nr_irqs = icp->nr_irqs;
- ics->offset = XICS_IRQ_BASE;
- ics->icp = icp;
object_property_set_bool(OBJECT(icp->ics), true, "realized", &error);
if (error) {
error_propagate(errp, error);
return;
}
- icp->ss = g_malloc0(icp->nr_servers*sizeof(ICPState));
for (i = 0; i < icp->nr_servers; i++) {
- char buffer[32];
- object_initialize(&icp->ss[i], sizeof(icp->ss[i]), TYPE_ICP);
- snprintf(buffer, sizeof(buffer), "icp[%d]", i);
- object_property_add_child(OBJECT(icp), buffer, OBJECT(&icp->ss[i]), NULL);
object_property_set_bool(OBJECT(&icp->ss[i]), true, "realized", &error);
if (error) {
error_propagate(errp, error);
@@ -741,33 +859,31 @@ static void xics_initfn(Object *obj)
xics->ics = ICS(object_new(TYPE_ICS));
object_property_add_child(obj, "ics", OBJECT(xics->ics), NULL);
+ xics->ics->icp = xics;
}
-static Property xics_properties[] = {
- DEFINE_PROP_UINT32("nr_servers", XICSState, nr_servers, -1),
- DEFINE_PROP_UINT32("nr_irqs", XICSState, nr_irqs, -1),
- DEFINE_PROP_END_OF_LIST(),
-};
-
static void xics_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
+ XICSStateClass *xsc = XICS_CLASS(oc);
dc->realize = xics_realize;
- dc->props = xics_properties;
- dc->reset = xics_reset;
+ xsc->set_nr_irqs = xics_set_nr_irqs;
+ xsc->set_nr_servers = xics_set_nr_servers;
}
static const TypeInfo xics_info = {
.name = TYPE_XICS,
- .parent = TYPE_SYS_BUS_DEVICE,
+ .parent = TYPE_XICS_COMMON,
.instance_size = sizeof(XICSState),
+ .class_size = sizeof(XICSStateClass),
.class_init = xics_class_init,
.instance_init = xics_initfn,
};
static void xics_register_types(void)
{
+ type_register_static(&xics_common_info);
type_register_static(&xics_info);
type_register_static(&ics_info);
type_register_static(&icp_info);