Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
tjh.dev
kernel
os
linux
Merge branch 'upstream/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen
* 'upstream/core' of git://git.kernel.org/pub/scm/linux/kernel/git/jeremy/xen:
xen: handle events as edge-triggered
xen: use percpu interrupts for IPIs and VIRQs
+16
-5
drivers/xen/events.c
+16
-5
drivers/xen/events.c
···
112
112
#define VALID_EVTCHN(chn) ((chn) != 0)
113
113
114
114
static struct irq_chip xen_dynamic_chip;
115
+
static struct irq_chip xen_percpu_chip;
115
116
116
117
/* Constructor for packed IRQ information. */
117
118
static struct irq_info mk_unbound_info(void)
···
378
377
irq = find_unbound_irq();
379
378
380
379
set_irq_chip_and_handler_name(irq, &xen_dynamic_chip,
381
-
handle_level_irq, "event");
380
+
handle_edge_irq, "event");
382
381
383
382
evtchn_to_irq[evtchn] = irq;
384
383
irq_info[irq] = mk_evtchn_info(evtchn);
···
404
403
if (irq < 0)
405
404
goto out;
406
405
407
-
set_irq_chip_and_handler_name(irq, &xen_dynamic_chip,
408
-
handle_level_irq, "ipi");
406
+
set_irq_chip_and_handler_name(irq, &xen_percpu_chip,
407
+
handle_percpu_irq, "ipi");
409
408
410
409
bind_ipi.vcpu = cpu;
411
410
if (HYPERVISOR_event_channel_op(EVTCHNOP_bind_ipi,
···
445
444
446
445
irq = find_unbound_irq();
447
446
448
-
set_irq_chip_and_handler_name(irq, &xen_dynamic_chip,
449
-
handle_level_irq, "virq");
447
+
set_irq_chip_and_handler_name(irq, &xen_percpu_chip,
448
+
handle_percpu_irq, "virq");
450
449
451
450
evtchn_to_irq[evtchn] = irq;
452
451
irq_info[irq] = mk_virq_info(evtchn, virq);
···
963
962
.ack = ack_dynirq,
964
963
.set_affinity = set_affinity_irq,
965
964
.retrigger = retrigger_dynirq,
965
+
};
966
+
967
+
static struct irq_chip xen_percpu_chip __read_mostly = {
968
+
.name = "xen-percpu",
969
+
970
+
.disable = disable_dynirq,
971
+
.mask = disable_dynirq,
972
+
.unmask = enable_dynirq,
973
+
974
+
.ack = ack_dynirq,
966
975
};
967
976
968
977
int xen_set_callback_via(uint64_t via)