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ppc/xics: Add xics to the monitor "info pic" command

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Useful to debug interrupt problems.

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
[clg: - updated for qemu-2.7
      - added a test on ->irqs as it is not necessarily allocated
        (PHB3_MSI)
      - removed static variable g_xics and replace with a loop on all
        children to find the xics objects.
      - rebased on InterruptStatsProvider interface ]
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>
This commit is contained in:
Benjamin Herrenschmidt 2016-10-17 22:33:14 +02:00 committed by David Gibson
parent f77d4ff850
commit b1fc72f0fb
1 changed files with 49 additions and 0 deletions
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49
hw/intc/xics.c
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@ -35,6 +35,8 @@
#include "hw/ppc/xics.h"
#include "qemu/error-report.h"
#include "qapi/visitor.h"
#include "monitor/monitor.h"
#include "hw/intc/intc.h"
int xics_get_cpu_index_by_dt_id(int cpu_dt_id)
{
@ -90,6 +92,47 @@ void xics_cpu_setup(XICSState *xics, PowerPCCPU *cpu)
}
}
static void xics_common_pic_print_info(InterruptStatsProvider *obj,
Monitor *mon)
{
XICSState *xics = XICS_COMMON(obj);
ICSState *ics;
uint32_t i;
for (i = 0; i < xics->nr_servers; i++) {
ICPState *icp = &xics->ss[i];
if (!icp->output) {
continue;
}
monitor_printf(mon, "CPU %d XIRR=%08x (%p) PP=%02x MFRR=%02x\n",
i, icp->xirr, icp->xirr_owner,
icp->pending_priority, icp->mfrr);
}
QLIST_FOREACH(ics, &xics->ics, list) {
monitor_printf(mon, "ICS %4x..%4x %p\n",
ics->offset, ics->offset + ics->nr_irqs - 1, ics);
if (!ics->irqs) {
continue;
}
for (i = 0; i < ics->nr_irqs; i++) {
ICSIRQState *irq = ics->irqs + i;
if (!(irq->flags & XICS_FLAGS_IRQ_MASK)) {
continue;
}
monitor_printf(mon, " %4x %s %02x %02x\n",
ics->offset + i,
(irq->flags & XICS_FLAGS_IRQ_LSI) ?
"LSI" : "MSI",
irq->priority, irq->status);
}
}
}
/*
* XICS Common class - parent for emulated XICS and KVM-XICS
*/
@ -190,8 +233,10 @@ static void xics_common_initfn(Object *obj)
static void xics_common_class_init(ObjectClass *oc, void *data)
{
DeviceClass *dc = DEVICE_CLASS(oc);
InterruptStatsProviderClass *ic = INTERRUPT_STATS_PROVIDER_CLASS(oc);
dc->reset = xics_common_reset;
ic->print_info = xics_common_pic_print_info;
}
static const TypeInfo xics_common_info = {
@ -201,6 +246,10 @@ static const TypeInfo xics_common_info = {
.class_size = sizeof(XICSStateClass),
.instance_init = xics_common_initfn,
.class_init = xics_common_class_init,
.interfaces = (InterfaceInfo[]) {
{ TYPE_INTERRUPT_STATS_PROVIDER },
{ }
},
};
/*