From: Greg Kurz <gr...@kaod.org>
Now that the spapr and pnv machines do set the "xive-fabric" link, the
use of the XIVE fabric pointer becomes mandatory. This is checked with
an assert() in a new realize hook. Since the XIVE router is realized at
machine init for the all the machine's life time, no risk to abort an
already running guest (ie. not a hotplug path).
This gets rid of a qdev_get_machine() call.
Signed-off-by: Greg Kurz <gr...@kaod.org>
Signed-off-by: Cédric Le Goater <c...@kaod.org>
Message-Id: <20200106145645.4539-6-...@kaod.org>
Signed-off-by: David Gibson <da...@gibson.dropbear.id.au>
---
hw/intc/xive.c | 14 +++++++++++---
1 file changed, 11 insertions(+), 3 deletions(-)
diff --git a/hw/intc/xive.c b/hw/intc/xive.c
index 6df89b06da..12a362b681 100644
--- a/hw/intc/xive.c
+++ b/hw/intc/xive.c
@@ -1378,6 +1378,13 @@ static int xive_router_get_block_id(XiveRouter *xrtr)
return xrc->get_block_id(xrtr);
}
+static void xive_router_realize(DeviceState *dev, Error **errp)
+{
+ XiveRouter *xrtr = XIVE_ROUTER(dev);
+
+ assert(xrtr->xfb);
+}
+
/*
* Encode the HW CAM line in the block group mode format :
*
@@ -1470,12 +1477,11 @@ int xive_presenter_tctx_match(XivePresenter *xptr,
XiveTCTX *tctx,
*
* The parameters represent what is sent on the PowerBus
*/
-static bool xive_presenter_notify(uint8_t format,
+static bool xive_presenter_notify(XiveFabric *xfb, uint8_t format,
uint8_t nvt_blk, uint32_t nvt_idx,
bool cam_ignore, uint8_t priority,
uint32_t logic_serv)
{
- XiveFabric *xfb = XIVE_FABRIC(qdev_get_machine());
XiveFabricClass *xfc = XIVE_FABRIC_GET_CLASS(xfb);
XiveTCTXMatch match = { .tctx = NULL, .ring = 0 };
int count;
@@ -1607,7 +1613,7 @@ static void xive_router_end_notify(XiveRouter *xrtr,
uint8_t end_blk,
return;
}
- found = xive_presenter_notify(format, nvt_blk, nvt_idx,
+ found = xive_presenter_notify(xrtr->xfb, format, nvt_blk, nvt_idx,
xive_get_field32(END_W7_F0_IGNORE, end.w7),
priority,
xive_get_field32(END_W7_F1_LOG_SERVER_ID, end.w7));
@@ -1727,6 +1733,8 @@ static void xive_router_class_init(ObjectClass *klass,
void *data)
dc->desc = "XIVE Router Engine";
dc->props = xive_router_properties;
+ /* Parent is SysBusDeviceClass. No need to call its realize hook */
+ dc->realize = xive_router_realize;
xnc->notify = xive_router_notify;
}
--
2.24.1
