[Qemu-devel] [PATCH v2 09/17] ppc/xive: Extend XiveTCTX with a XiveRouter pointer

["Cédric Le Goater" <clg@kaod.org>]

This is to perform lookups in the NVT table when a vCPU is dispatched
and possibily resend interrupts.

Future XIVE chip will use a different class for the model of the
interrupt controller and we might need to change the type of
'XiveRouter *' to 'Object *'

Signed-off-by: Cédric Le Goater <clg@kaod.org>
---
 include/hw/ppc/xive.h | 2 ++
 hw/intc/xive.c        | 9 +++++++++
 2 files changed, 11 insertions(+)

diff --git a/include/hw/ppc/xive.h b/include/hw/ppc/xive.h
index 4851ff87e795..206b23ecfab3 100644
--- a/include/hw/ppc/xive.h
+++ b/include/hw/ppc/xive.h
@@ -320,6 +320,8 @@ typedef struct XiveTCTX {
     qemu_irq    os_output;
 
     uint8_t     regs[XIVE_TM_RING_COUNT * XIVE_TM_RING_SIZE];
+
+    struct XiveRouter  *xrtr;
 } XiveTCTX;
 
 /*
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 88f2e560db0f..1b0eccb6df40 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -573,6 +573,14 @@ static void xive_tctx_realize(DeviceState *dev, Error **errp)
     Object *obj;
     Error *local_err = NULL;
 
+    obj = object_property_get_link(OBJECT(dev), "xrtr", &local_err);
+    if (!obj) {
+        error_propagate(errp, local_err);
+        error_prepend(errp, "required link 'xrtr' not found: ");
+        return;
+    }
+    tctx->xrtr = XIVE_ROUTER(obj);
+
     obj = object_property_get_link(OBJECT(dev), "cpu", &local_err);
     if (!obj) {
         error_propagate(errp, local_err);
@@ -666,6 +674,7 @@ Object *xive_tctx_create(Object *cpu, XiveRouter *xrtr, Error **errp)
     object_property_add_child(cpu, TYPE_XIVE_TCTX, obj, &error_abort);
     object_unref(obj);
     object_property_add_const_link(obj, "cpu", cpu, &error_abort);
+    object_property_add_const_link(obj, "xrtr", OBJECT(xrtr), &error_abort);
     object_property_set_bool(obj, true, "realized", &local_err);
     if (local_err) {
         goto error;
-- 
2.21.0