[Qemu-ppc] [PATCH 02/10] xics: Handle KVM ICP reset from the common code

[Greg Kurz]

The KVM ICP reset handler simply writes the ICP state to KVM. This
doesn't need the overkill parent_reset logic we have today. Call
icp_set_kvm_state() from the base ICP reset function instead.

Since there are no other users for ICPStateClass::parent_reset, and
it isn't currently expected to change, drop it as well.

Signed-off-by: Greg Kurz <address@hidden>
---
 hw/intc/xics.c        |   12 ++++--------
 hw/intc/xics_kvm.c    |   11 -----------
 include/hw/ppc/xics.h |    1 -
 3 files changed, 4 insertions(+), 20 deletions(-)

diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index 988b53abd17d..822d367e6388 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -289,7 +289,7 @@ static const VMStateDescription vmstate_icp_server = {
     },
 };
 
-static void icp_reset(DeviceState *dev)
+static void icp_reset_handler(void *dev)
 {
     ICPState *icp = ICP(dev);
 
@@ -299,13 +299,10 @@ static void icp_reset(DeviceState *dev)
 
     /* Make all outputs are deasserted */
     qemu_set_irq(icp->output, 0);
-}
 
-static void icp_reset_handler(void *dev)
-{
-    DeviceClass *dc = DEVICE_GET_CLASS(dev);
-
-    dc->reset(dev);
+    if (kvm_irqchip_in_kernel()) {
+        icp_set_kvm_state(ICP(dev));
+    }
 }
 
 static void icp_realize(DeviceState *dev, Error **errp)
@@ -370,7 +367,6 @@ static void icp_class_init(ObjectClass *klass, void *data)
 
     dc->realize = icp_realize;
     dc->unrealize = icp_unrealize;
-    dc->reset = icp_reset;
 }
 
 static const TypeInfo icp_info = {
diff --git a/hw/intc/xics_kvm.c b/hw/intc/xics_kvm.c
index 7efa99b8b434..80321e9b75ab 100644
--- a/hw/intc/xics_kvm.c
+++ b/hw/intc/xics_kvm.c
@@ -115,15 +115,6 @@ int icp_set_kvm_state(ICPState *icp)
     return 0;
 }
 
-static void icp_kvm_reset(DeviceState *dev)
-{
-    ICPStateClass *icpc = ICP_GET_CLASS(dev);
-
-    icpc->parent_reset(dev);
-
-    icp_set_kvm_state(ICP(dev));
-}
-
 static void icp_kvm_realize(DeviceState *dev, Error **errp)
 {
     ICPState *icp = ICP(dev);
@@ -176,8 +167,6 @@ static void icp_kvm_class_init(ObjectClass *klass, void 
*data)
 
     device_class_set_parent_realize(dc, icp_kvm_realize,
                                     &icpc->parent_realize);
-    device_class_set_parent_reset(dc, icp_kvm_reset,
-                                  &icpc->parent_reset);
 }
 
 static const TypeInfo icp_kvm_info = {
diff --git a/include/hw/ppc/xics.h b/include/hw/ppc/xics.h
index 3236ccec924c..e33282a576d0 100644
--- a/include/hw/ppc/xics.h
+++ b/include/hw/ppc/xics.h
@@ -65,7 +65,6 @@ struct ICPStateClass {
     DeviceClass parent_class;
 
     DeviceRealize parent_realize;
-    DeviceReset parent_reset;
 };
 
 struct ICPState {