In irqfd mode, current code attempts to set a resamplefd whatever
the type of the IRQ. For an edge-sensitive IRQ this attempt fails
and as a consequence the whole irqfd setup fails and we fall back
to the slow mode. This patch bypasses the resamplefd setting for
non level-sentive IRQs.
Signed-off-by: Eric Auger <eric.au...@linaro.org>
---
hw/vfio/platform.c | 4 ++++
1 file changed, 4 insertions(+)
diff --git a/hw/vfio/platform.c b/hw/vfio/platform.c
index 38eaccf..2c91650 100644
--- a/hw/vfio/platform.c
+++ b/hw/vfio/platform.c
@@ -352,6 +352,10 @@ static int vfio_set_resample_eventfd(VFIOINTp *intp)
int argsz, ret;
int32_t *pfd;
+ if (!(intp->flags & VFIO_IRQ_INFO_AUTOMASKED)) {
+ return 0;
+ }
+
argsz = sizeof(*irq_set) + sizeof(*pfd);
irq_set = g_malloc0(argsz);
irq_set->argsz = argsz;
--
1.8.3.2
