Commit 12334715 authored Nov 19, 2010 by Konrad Rzeszutek Wilk Committed by Jeremy Fitzhardinge Nov 22, 2010

xen/events: Use PIRQ instead of GSI value when unmapping MSI/MSI-X irqs.



When we allocate a vector for MSI/MSI-X we save away the PIRQ, and the
vector value. When we unmap (de-allocate) the MSI/MSI-X vector(s) we
need to provide the PIRQ and the vector value. What we did instead
was to provide the GSI (which was zero) and the vector value, and we
got these unhappy error messages:

(XEN) irq.c:1575: dom0: pirq 0 not mapped
[    7.733415] unmap irq failed -22

This patches fixes this and we use the PIRQ value instead of the GSI
value.

CC: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

parent ec35a69c

drivers/xen/events.c

+1 −1

Original line number	Diff line number	Diff line
		@@ -755,7 +755,7 @@ int xen_destroy_irq(int irq)
		goto out;

		if (xen_initial_domain()) {
		unmap_irq.pirq = info->u.pirq.gsi;
		unmap_irq.pirq = info->u.pirq.pirq;
		unmap_irq.domid = DOMID_SELF;
		rc = HYPERVISOR_physdev_op(PHYSDEVOP_unmap_pirq, &unmap_irq);
		if (rc) {

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