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spapr_irq: Expose the phandle of the interrupt controller

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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>
This commit is contained in:
Greg Kurz 2019-02-19 18:18:13 +01:00 committed by David Gibson
parent 743ed566c1
commit ad62bff638
2 changed files with 22 additions and 0 deletions
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21
hw/ppc/spapr_irq.c
View File

@ -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
*/

1
include/hw/ppc/spapr_irq.h
View File

@ -61,6 +61,7 @@ void spapr_irq_free(sPAPRMachineState *spapr, int irq, int num);
qemu_irq spapr_qirq(sPAPRMachineState *spapr, int irq);
int spapr_irq_post_load(sPAPRMachineState *spapr, int version_id);
void spapr_irq_reset(sPAPRMachineState *spapr, Error **errp);
int spapr_irq_get_phandle(sPAPRMachineState *spapr, void *fdt, Error **errp);
/*
* XICS legacy routines