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Subject[PATCH v3 04/10] VFIO: platform: add vfio_platform_set_automasked
Date
This function makes possible to change the automasked mode.

Signed-off-by: Eric Auger <eric.auger@linaro.org>

---

v1 -> v2:
- set forwarded flag
---
drivers/vfio/platform/vfio_platform_irq.c | 19 +++++++++++++++++++
1 file changed, 19 insertions(+)

diff --git a/drivers/vfio/platform/vfio_platform_irq.c b/drivers/vfio/platform/vfio_platform_irq.c
index b31b1f0..a285384 100644
--- a/drivers/vfio/platform/vfio_platform_irq.c
+++ b/drivers/vfio/platform/vfio_platform_irq.c
@@ -186,6 +186,25 @@ static irqreturn_t vfio_handler(int irq, void *dev_id)
return ret;
}

+static int vfio_platform_set_automasked(struct vfio_platform_irq *irq,
+ bool automasked)
+{
+ unsigned long flags;
+
+ spin_lock_irqsave(&irq->lock, flags);
+ if (automasked) {
+ irq->forwarded = true;
+ irq->flags |= VFIO_IRQ_INFO_AUTOMASKED;
+ irq->handler = vfio_automasked_irq_handler;
+ } else {
+ irq->forwarded = false;
+ irq->flags &= ~VFIO_IRQ_INFO_AUTOMASKED;
+ irq->handler = vfio_irq_handler;
+ }
+ spin_unlock_irqrestore(&irq->lock, flags);
+ return 0;
+}
+
static void vfio_platform_irq_bypass_stop(struct irq_bypass_producer *prod)
{
}
--
1.9.1


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