From: Ian Campbell <ian.campbell@citrix.com>
Date: Wed, 19 Dec 2012 14:16:21 +0000 (+0000)
Subject: xen: arm: stub out pirq related functions.
X-Git-Tag: archive/raspbian/4.8.0-1+rpi1~1^2~7503
X-Git-Url: https://dgit.raspbian.org/?a=commitdiff_plain;h=ca143acd60249cede61e575f8a8bb8a4956c634e;p=xen.git

xen: arm: stub out pirq related functions.

On ARM we use GIC functionality to inject virtualised real interrupts
for h/w devices rather than evtchn-pirqs.

Signed-off-by: Ian Campbell <ian.campbell@citrix.com>
Acked-by: Tim Deegan <tim@xen.org>
Acked-by: Stefano Stabellini <stefano.stabellini@eu.citrix.com>
Committed-by: Ian Campbell <ian.campbell@citrix.com>
---

diff --git a/xen/arch/arm/dummy.S b/xen/arch/arm/dummy.S
index 66eb31405e..c641e7adda 100644
--- a/xen/arch/arm/dummy.S
+++ b/xen/arch/arm/dummy.S
@@ -7,11 +7,7 @@ x:	.word 0xe7f000f0 /* Undefined instruction */
 x:	mov pc, lr
 	
 /* PIRQ support */
-DUMMY(alloc_pirq_struct);
 DUMMY(nr_irqs_gsi);
-DUMMY(pirq_guest_bind);
-DUMMY(pirq_guest_unbind);
-DUMMY(pirq_set_affinity);
 
 /* VCPU */
 NOP(update_vcpu_system_time);
diff --git a/xen/arch/arm/irq.c b/xen/arch/arm/irq.c
index 72e83e6803..a50281b04b 100644
--- a/xen/arch/arm/irq.c
+++ b/xen/arch/arm/irq.c
@@ -191,6 +191,35 @@ out_no_end:
     irq_exit();
 }
 
+/*
+ * pirq event channels. We don't use these on ARM, instead we use the
+ * features of the GIC to inject virtualised normal interrupts.
+ */
+struct pirq *alloc_pirq_struct(struct domain *d)
+{
+    return NULL;
+}
+
+/*
+ * These are all unreachable given an alloc_pirq_struct
+ * which returns NULL, all callers try to lookup struct pirq first
+ * which will fail.
+ */
+int pirq_guest_bind(struct vcpu *v, struct pirq *pirq, int will_share)
+{
+    BUG();
+}
+
+void pirq_guest_unbind(struct domain *d, struct pirq *pirq)
+{
+    BUG();
+}
+
+void pirq_set_affinity(struct domain *d, int pirq, const cpumask_t *mask)
+{
+    BUG();
+}
+
 /*
  * Local variables:
  * mode: C