xen/pci: In xen_register_pirq bind the GSI to the IRQ after the hypercall.

Not before .. also that code segment starts looking like the HVM one.

Signed-off-by: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>

diff --git a/arch/x86/pci/xen.c b/arch/x86/pci/xen.c
index 7ee39cc38a2da5fe1609743d7b16d9f89f3f7970..6b7d849905c31a4bc4c04068b58c9e9be1c47dba 100644 (file)
--- a/arch/x86/pci/xen.c
+++ b/arch/x86/pci/xen.c
@@ -112,26 +112,10 @@ static int xen_register_pirq(u32 gsi, int gsi_override, int triggering)
        if (!xen_pv_domain())
                return -1;
 
-       if (triggering == ACPI_EDGE_SENSITIVE) {
-               shareable = 0;
-               name = "ioapic-edge";
-       } else {
-               shareable = 1;
-               name = "ioapic-level";
-       }
        pirq = xen_allocate_pirq_gsi(gsi);
        if (pirq < 0)
                goto out;
 
-       if (gsi_override >= 0)
-               irq = xen_bind_pirq_gsi_to_irq(gsi_override, pirq, shareable, name);
-       else
-               irq = xen_bind_pirq_gsi_to_irq(gsi, pirq, shareable, name);
-       if (irq < 0)
-               goto out;
-
-       printk(KERN_DEBUG "xen: --> pirq=%d -> irq=%d (gsi=%d)\n", pirq, irq, gsi);
-
        map_irq.domid = DOMID_SELF;
        map_irq.type = MAP_PIRQ_TYPE_GSI;
        map_irq.index = gsi;
@@ -143,6 +127,22 @@ static int xen_register_pirq(u32 gsi, int gsi_override, int triggering)
                return -1;
        }
 
+       if (triggering == ACPI_EDGE_SENSITIVE) {
+               shareable = 0;
+               name = "ioapic-edge";
+       } else {
+               shareable = 1;
+               name = "ioapic-level";
+       }
+
+       if (gsi_override >= 0)
+               gsi = gsi_override;
+
+       irq = xen_bind_pirq_gsi_to_irq(gsi, pirq, shareable, name);
+       if (irq < 0)
+               goto out;
+
+       printk(KERN_DEBUG "xen: --> pirq=%d -> irq=%d (gsi=%d)\n", pirq, irq, gsi);
 out:
        return irq;
 }