xen/irq: Export 'xen_pirq_from_irq' function. (e6197acc) · Commits · 戴 / test

We need this to find the real Xen PIRQ value for a device that requests an MSI or MSI-X. In the past we used 'xen_gsi_from_irq' since that function would return an Xen PIRQ or GSI depending on the provided IRQ. Now that we have seperated that we need to use the correct function. [v2: Deal with rebase on stable/irq.cleanup] Signed-off-by:

Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

drivers/xen/events.c

+6 −0

Original line number	Diff line number	Diff line
		@@ -763,6 +763,12 @@ out:
		return irq;
		}


		int xen_pirq_from_irq(unsigned irq)
		{
		return pirq_from_irq(irq);
		}
		EXPORT_SYMBOL_GPL(xen_pirq_from_irq);
		int bind_evtchn_to_irq(unsigned int evtchn)
		{
		int irq;

include/xen/events.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -95,6 +95,9 @@ int xen_destroy_irq(int irq);
		/* Return irq from pirq */
		int xen_irq_from_pirq(unsigned pirq);

		/* Return the pirq allocated to the irq. */
		int xen_pirq_from_irq(unsigned irq);

		/* Determine whether to ignore this IRQ if it is passed to a guest. */
		int xen_test_irq_shared(int irq);

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