[rtems commit] bsp/qoriq: Fix hypervisor guest IRQ support

[Sebastian Huber]

Module:    rtems
Branch:    master
Commit:    2f54488f7497e94e92558457251e02d19f22aaf1
Changeset: http://git.rtems.org/rtems/commit/?id=2f54488f7497e94e92558457251e02d19f22aaf1

Author:    Sebastian Huber <sebastian.huber at embedded-brains.de>
Date:      Mon Jan 15 13:55:41 2018 +0100

bsp/qoriq: Fix hypervisor guest IRQ support

Update #3085.

---

 c/src/lib/libbsp/powerpc/qoriq/irq/irq.c | 6 +++++-
 1 file changed, 5 insertions(+), 1 deletion(-)

diff --git a/c/src/lib/libbsp/powerpc/qoriq/irq/irq.c b/c/src/lib/libbsp/powerpc/qoriq/irq/irq.c
index 2af3c51..3ead10f 100644
--- a/c/src/lib/libbsp/powerpc/qoriq/irq/irq.c
+++ b/c/src/lib/libbsp/powerpc/qoriq/irq/irq.c
@@ -105,7 +105,11 @@ void bsp_interrupt_dispatch(uintptr_t exception_number)
 	}
 #endif
 
-	ev_int_iack(0, &vector);
+	/*
+	 * This works only if the "has-external-proxy" property is present in the
+	 * "epapr,hv-pic" device tree node.
+	 */
+	vector = PPC_SPECIAL_PURPOSE_REGISTER(FSL_EIS_EPR);
 
 	if (vector != SPURIOUS) {
 		uint32_t msr;