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ppc/pnv: Link "chip" property to PnvXive::chip pointer

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The XIVE object has both a pointer and a "chip" property pointing to the
chip object. Confusing bugs could arise if these ever go out of sync.

Change the property definition so that it explicitely sets the pointer.

Signed-off-by: Greg Kurz <groug@kaod.org>
Message-Id: <157383336564.165747.10250365296928442882.stgit@bahia.lan>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Greg Kurz 2019-11-15 16:56:05 +01:00 committed by David Gibson
parent 158e17a65e
commit 7ae54cc3a0
2 changed files with 5 additions and 12 deletions
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13
hw/intc/pnv_xive.c
View File

@ -1675,17 +1675,8 @@ static void pnv_xive_realize(DeviceState *dev, Error **errp)
XiveSource *xsrc = &xive->ipi_source;
XiveENDSource *end_xsrc = &xive->end_source;
Error *local_err = NULL;
Object *obj;
obj = object_property_get_link(OBJECT(dev), "chip", &local_err);
if (!obj) {
error_propagate(errp, local_err);
error_prepend(errp, "required link 'chip' not found: ");
return;
}
/* The PnvChip id identifies the XIVE interrupt controller. */
xive->chip = PNV_CHIP(obj);
assert(xive->chip);
/*
* The XiveSource and XiveENDSource objects are realized with the
@ -1800,6 +1791,8 @@ static Property pnv_xive_properties[] = {
DEFINE_PROP_UINT64("vc-bar", PnvXive, vc_base, 0),
DEFINE_PROP_UINT64("pc-bar", PnvXive, pc_base, 0),
DEFINE_PROP_UINT64("tm-bar", PnvXive, tm_base, 0),
/* The PnvChip id identifies the XIVE interrupt controller. */
DEFINE_PROP_LINK("chip", PnvXive, chip, TYPE_PNV_CHIP, PnvChip *),
DEFINE_PROP_END_OF_LIST(),
};

4
hw/ppc/pnv.c
View File

@ -1091,8 +1091,6 @@ static void pnv_chip_power9_instance_init(Object *obj)
object_initialize_child(obj, "xive", &chip9->xive, sizeof(chip9->xive),
TYPE_PNV_XIVE, &error_abort, NULL);
object_property_add_const_link(OBJECT(&chip9->xive), "chip", obj,
&error_abort);
object_initialize_child(obj, "psi", &chip9->psi, sizeof(chip9->psi),
TYPE_PNV9_PSI, &error_abort, NULL);
@ -1172,6 +1170,8 @@ static void pnv_chip_power9_realize(DeviceState *dev, Error **errp)
"pc-bar", &error_fatal);
object_property_set_int(OBJECT(&chip9->xive), PNV9_XIVE_TM_BASE(chip),
"tm-bar", &error_fatal);
object_property_set_link(OBJECT(&chip9->xive), OBJECT(chip), "chip",
&error_abort);
object_property_set_bool(OBJECT(&chip9->xive), true, "realized",
&local_err);
if (local_err) {