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[PATCH 08/10] xive: Use the XIVE fabric link under the XIVE router
From: |
Cédric Le Goater |
Subject: |
[PATCH 08/10] xive: Use the XIVE fabric link under the XIVE router |
Date: |
Thu, 19 Dec 2019 08:29:59 +0100 |
From: Greg Kurz <address@hidden>
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 <address@hidden>
Signed-off-by: Cédric Le Goater <address@hidden>
---
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 6df89b06da38..12a362b681a6 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;
}
--
2.21.0
- [PATCH 02/10] ppc/pnv: Introduce a "system-memory" property, (continued)
- [PATCH 02/10] ppc/pnv: Introduce a "system-memory" property, Cédric Le Goater, 2019/12/19
- [PATCH 03/10] ppc/pnv: Introduce a "xics" property alias under the PSI model, Cédric Le Goater, 2019/12/19
- [PATCH 04/10] ppc/pnv: Introduce a "xics" property under the POWER8 chip, Cédric Le Goater, 2019/12/19
- [PATCH 05/10] spapr/xive: Use device_class_set_parent_realize(), Cédric Le Goater, 2019/12/19
- [PATCH 06/10] pnv/xive: Use device_class_set_parent_realize(), Cédric Le Goater, 2019/12/19
- [PATCH 07/10] spapr, pnv, xive: Add a "xive-fabric" link to the XIVE router, Cédric Le Goater, 2019/12/19
- [PATCH 08/10] xive: Use the XIVE fabric link under the XIVE router,
Cédric Le Goater <=
- [PATCH 09/10] ppc/pnv: Add an "nr-threads" property to the base chip class, Cédric Le Goater, 2019/12/19
- [PATCH 10/10] ppc/pnv: Add a "pnor" const link property to the BMC internal simulator, Cédric Le Goater, 2019/12/19