summary refs log tree commit diff stats
path: root/hw/ppc/spapr_irq.c
diff options
context:
space:
mode:
authorGreg Kurz <groug@kaod.org>2019-02-19 18:18:13 +0100
committerDavid Gibson <david@gibson.dropbear.id.au>2019-02-26 09:21:25 +1100
commitad62bff6383178fe95caff3ec63a6ca4ee398dec (patch)
treecf3bda18f1542f0b1d4b23b86b5c20f7237cd6d1 /hw/ppc/spapr_irq.c
parent743ed566c1d80991ab22fb404be706bb8b742335 (diff)
downloadfocaccia-qemu-ad62bff6383178fe95caff3ec63a6ca4ee398dec.tar.gz
focaccia-qemu-ad62bff6383178fe95caff3ec63a6ca4ee398dec.zip
spapr_irq: Expose the phandle of the interrupt controller
This will be used by PHB hotplug in order to create the "interrupt-map"
property of the PHB node.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <155059669374.1466090.12943228478046223856.stgit@bahia.lab.toulouse-stg.fr.ibm.com>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/ppc/spapr_irq.c')
-rw-r--r--hw/ppc/spapr_irq.c21
1 files changed, 21 insertions, 0 deletions
diff --git a/hw/ppc/spapr_irq.c b/hw/ppc/spapr_irq.c
index 359761494c..4145079d7f 100644
--- a/hw/ppc/spapr_irq.c
+++ b/hw/ppc/spapr_irq.c
@@ -638,6 +638,27 @@ void spapr_irq_reset(sPAPRMachineState *spapr, Error **errp)
     }
 }
 
+int spapr_irq_get_phandle(sPAPRMachineState *spapr, void *fdt, Error **errp)
+{
+    const char *nodename = spapr->irq->get_nodename(spapr);
+    int offset, phandle;
+
+    offset = fdt_subnode_offset(fdt, 0, nodename);
+    if (offset < 0) {
+        error_setg(errp, "Can't find node \"%s\": %s", nodename,
+                   fdt_strerror(offset));
+        return -1;
+    }
+
+    phandle = fdt_get_phandle(fdt, offset);
+    if (!phandle) {
+        error_setg(errp, "Can't get phandle of node \"%s\"", nodename);
+        return -1;
+    }
+
+    return phandle;
+}
+
 /*
  * XICS legacy routines - to deprecate one day
  */