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authorGreg Kurz <groug@kaod.org>2019-11-18 00:20:36 +0100
committerDavid Gibson <david@gibson.dropbear.id.au>2019-12-17 10:39:47 +1100
commitb015a9809427c87940447e5b76a5b73a0bf27d7c (patch)
tree337897be9c51a38459719730331b3feaa30118a4 /hw/intc/xics.c
parent7ae54cc3a00d28cfb0bc4f377faf157b2e55b25c (diff)
xics: Link ICS_PROP_XICS property to ICSState::xics pointer
The ICS object has both a pointer and an ICS_PROP_XICS property pointing to the XICS fabric. Confusing bugs could arise if these ever go out of sync. Change the property definition so that it explicitely sets the pointer. The property isn't optional : not being able to set the link is a bug and QEMU should rather abort than exit in this case. Signed-off-by: Greg Kurz <groug@kaod.org> Message-Id: <157403283596.409804.17347207690271971987.stgit@bahia.lan> Reviewed-by: Cédric Le Goater <clg@kaod.org> Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
Diffstat (limited to 'hw/intc/xics.c')
-rw-r--r--hw/intc/xics.c13
1 files changed, 3 insertions, 10 deletions
diff --git a/hw/intc/xics.c b/hw/intc/xics.c
index e7ac9ba618..f7a4548089 100644
--- a/hw/intc/xics.c
+++ b/hw/intc/xics.c
@@ -609,17 +609,8 @@ static void ics_reset_handler(void *dev)
static void ics_realize(DeviceState *dev, Error **errp)
{
ICSState *ics = ICS(dev);
- Error *local_err = NULL;
- Object *obj;
- obj = object_property_get_link(OBJECT(dev), ICS_PROP_XICS, &local_err);
- if (!obj) {
- error_propagate_prepend(errp, local_err,
- "required link '" ICS_PROP_XICS
- "' not found: ");
- return;
- }
- ics->xics = XICS_FABRIC(obj);
+ assert(ics->xics);
if (!ics->nr_irqs) {
error_setg(errp, "Number of interrupts needs to be greater 0");
@@ -699,6 +690,8 @@ static const VMStateDescription vmstate_ics = {
static Property ics_properties[] = {
DEFINE_PROP_UINT32("nr-irqs", ICSState, nr_irqs, 0),
+ DEFINE_PROP_LINK(ICS_PROP_XICS, ICSState, xics, TYPE_XICS_FABRIC,
+ XICSFabric *),
DEFINE_PROP_END_OF_LIST(),
};