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Commit 854072dd authored Aug 28, 2014 by Juergen Gross Committed by Stefano Stabellini Sep 23, 2014

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>

parent 46e3626a

drivers/xen/events/events_base.c

+3 −2

Original line number	Diff line number	Diff line
		@@ -900,7 +900,7 @@ 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,
		int bind_interdomain_evtchn_to_irq(unsigned int remote_domain,
		unsigned int remote_port)
		{
		struct evtchn_bind_interdomain bind_interdomain;
		@@ -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)
		{

include/xen/events.h

+2 −0

Original line number	Diff line number	Diff line
		@@ -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,