diff mbox

[PULL,22/48] ppc/pnv: extend the machine with a XICSFabric interface

Message ID 20170426070034.10727-23-david@gibson.dropbear.id.au
State New
Headers show

Commit Message

David Gibson April 26, 2017, 7 a.m. UTC 
From: Cédric Le Goater <clg@kaod.org>

A XICSFabric QOM interface is used by the XICS layer to manipulate the
ICP and ICS objects. Let's define the associated handlers for the
PowerNV machine. All handlers should be defined even if there is no
ICS under the PowerNV machine yet.

Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
---
 hw/ppc/pnv.c | 30 ++++++++++++++++++++++++++++++
 1 file changed, 30 insertions(+)
diff mbox

Patch

diff --git a/hw/ppc/pnv.c b/hw/ppc/pnv.c
index aad7917..0a0cfe3 100644
--- a/hw/ppc/pnv.c
+++ b/hw/ppc/pnv.c
@@ -34,6 +34,7 @@ 
 #include "qemu/cutils.h"
 #include "qapi/visitor.h"
 
+#include "hw/ppc/xics.h"
 #include "hw/ppc/pnv_xscom.h"
 
 #include "hw/isa/isa.h"
@@ -738,6 +739,29 @@  static const TypeInfo pnv_chip_info = {
     .abstract      = true,
 };
 
+static PowerPCCPU *ppc_get_vcpu_by_pir(int pir)
+{
+    CPUState *cs;
+
+    CPU_FOREACH(cs) {
+        PowerPCCPU *cpu = POWERPC_CPU(cs);
+        CPUPPCState *env = &cpu->env;
+
+        if (env->spr_cb[SPR_PIR].default_value == pir) {
+            return cpu;
+        }
+    }
+
+    return NULL;
+}
+
+static ICPState *pnv_icp_get(XICSFabric *xi, int pir)
+{
+    PowerPCCPU *cpu = ppc_get_vcpu_by_pir(pir);
+
+    return cpu ? ICP(cpu->intc) : NULL;
+}
+
 static void pnv_get_num_chips(Object *obj, Visitor *v, const char *name,
                               void *opaque, Error **errp)
 {
@@ -788,6 +812,7 @@  static void powernv_machine_class_props_init(ObjectClass *oc)
 static void powernv_machine_class_init(ObjectClass *oc, void *data)
 {
     MachineClass *mc = MACHINE_CLASS(oc);
+    XICSFabricClass *xic = XICS_FABRIC_CLASS(oc);
 
     mc->desc = "IBM PowerNV (Non-Virtualized)";
     mc->init = ppc_powernv_init;
@@ -798,6 +823,7 @@  static void powernv_machine_class_init(ObjectClass *oc, void *data)
     mc->no_parallel = 1;
     mc->default_boot_order = NULL;
     mc->default_ram_size = 1 * G_BYTE;
+    xic->icp_get = pnv_icp_get;
 
     powernv_machine_class_props_init(oc);
 }
@@ -808,6 +834,10 @@  static const TypeInfo powernv_machine_info = {
     .instance_size = sizeof(PnvMachineState),
     .instance_init = powernv_machine_initfn,
     .class_init    = powernv_machine_class_init,
+    .interfaces = (InterfaceInfo[]) {
+        { TYPE_XICS_FABRIC },
+        { },
+    },
 };
 
 static void powernv_machine_register_types(void)