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-rw-r--r--include/linux/vfio.h38
1 files changed, 25 insertions, 13 deletions
diff --git a/include/linux/vfio.h b/include/linux/vfio.h
index 2d67b8998fd8..ddb440975382 100644
--- a/include/linux/vfio.h
+++ b/include/linux/vfio.h
@@ -14,6 +14,8 @@
#include <linux/iommu.h>
#include <linux/mm.h>
+#include <linux/workqueue.h>
+#include <linux/poll.h>
#include <uapi/linux/vfio.h>
/**
@@ -78,19 +80,6 @@ extern int vfio_register_iommu_driver(const struct vfio_iommu_driver_ops *ops);
extern void vfio_unregister_iommu_driver(
const struct vfio_iommu_driver_ops *ops);
-/**
- * offsetofend(TYPE, MEMBER)
- *
- * @TYPE: The type of the structure
- * @MEMBER: The member within the structure to get the end offset of
- *
- * Simple helper macro for dealing with variable sized structures passed
- * from user space. This allows us to easily determine if the provided
- * structure is sized to include various fields.
- */
-#define offsetofend(TYPE, MEMBER) \
- (offsetof(TYPE, MEMBER) + sizeof(((TYPE *)0)->MEMBER))
-
/*
* External user API
*/
@@ -123,4 +112,27 @@ static inline long vfio_spapr_iommu_eeh_ioctl(struct iommu_group *group,
return -ENOTTY;
}
#endif /* CONFIG_EEH */
+
+/*
+ * IRQfd - generic
+ */
+struct virqfd {
+ void *opaque;
+ struct eventfd_ctx *eventfd;
+ int (*handler)(void *, void *);
+ void (*thread)(void *, void *);
+ void *data;
+ struct work_struct inject;
+ wait_queue_t wait;
+ poll_table pt;
+ struct work_struct shutdown;
+ struct virqfd **pvirqfd;
+};
+
+extern int vfio_virqfd_enable(void *opaque,
+ int (*handler)(void *, void *),
+ void (*thread)(void *, void *),
+ void *data, struct virqfd **pvirqfd, int fd);
+extern void vfio_virqfd_disable(struct virqfd **pvirqfd);
+
#endif /* VFIO_H */