Add a new IRQ type/subtype to get notification on nested
stage DMA faults.

Signed-off-by: Eric Auger <[email protected]>
---
 include/uapi/linux/vfio.h | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/include/uapi/linux/vfio.h b/include/uapi/linux/vfio.h
index b53714ae02c5..58607809e81a 100644
--- a/include/uapi/linux/vfio.h
+++ b/include/uapi/linux/vfio.h
@@ -473,6 +473,9 @@ struct vfio_irq_info_cap_type {
        __u32 subtype;  /* type specific */
 };
 
+#define VFIO_IRQ_TYPE_NESTED                           (1)
+#define VFIO_IRQ_SUBTYPE_DMA_FAULT                     (1)
+
 /**
  * VFIO_DEVICE_SET_IRQS - _IOW(VFIO_TYPE, VFIO_BASE + 10, struct vfio_irq_set)
  *
-- 
2.20.1

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