From 854072dd0f73b8e4238c88bdf0dd2a8db0239c1c Mon Sep 17 00:00:00 2001
From: Juergen Gross <jgross@suse.com>
Date: Thu, 28 Aug 2014 06:44:09 +0200
Subject: [PATCH] xen/events: support threaded irqs for interdomain event
channels
Export bind_interdomain_evtchn_to_irq() so drivers can use threaded
interrupt handlers with:
irq = bind_interdomain_evtchn_to_irq(remote_dom, remote_port);
if (irq < 0)
/* error */
ret = request_threaded_irq(...);
Signed-off-by: Juergen Gross <jgross@suse.com>
Acked-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
---
drivers/xen/events/events_base.c | 5 +++--
include/xen/events.h | 2 ++
2 files changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/xen/events/events_base.c b/drivers/xen/events/events_base.c
index 5b5c5ff273fdb7..b4bca2d4a7e53c 100644
--- a/drivers/xen/events/events_base.c
+++ b/drivers/xen/events/events_base.c
@@ -900,8 +900,8 @@ static int bind_ipi_to_irq(unsigned int ipi, unsigned int cpu)
return irq;
}
-static int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
- unsigned int remote_port)
+int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
+ unsigned int remote_port)
{
struct evtchn_bind_interdomain bind_interdomain;
int err;
@@ -914,6 +914,7 @@ static int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
return err ? : bind_evtchn_to_irq(bind_interdomain.local_port);
}
+EXPORT_SYMBOL_GPL(bind_interdomain_evtchn_to_irq);
static int find_virq(unsigned int virq, unsigned int cpu)
{
diff --git a/include/xen/events.h b/include/xen/events.h
index 8bee7a75e85055..5321cd9636e6a4 100644
--- a/include/xen/events.h
+++ b/include/xen/events.h
@@ -28,6 +28,8 @@ int bind_ipi_to_irqhandler(enum ipi_vector ipi,
unsigned long irqflags,
const char *devname,
void *dev_id);
+int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
+ unsigned int remote_port);
int bind_interdomain_evtchn_to_irqhandler(unsigned int remote_domain,
unsigned int remote_port,
irq_handler_t handler,
--
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