From: Mukesh Rathor <[email protected]> Add data structs needed by the subsequent patch that introduces a new module to implement VFIO-MSHV pseudo device.
Signed-off-by: Mukesh Rathor <[email protected]> --- drivers/hv/mshv_root.h | 23 +++++++++++++++++++++++ include/uapi/linux/mshv.h | 31 +++++++++++++++++++++++++++++++ 2 files changed, 54 insertions(+) diff --git a/drivers/hv/mshv_root.h b/drivers/hv/mshv_root.h index c3753b009fd8..42e1da1d545b 100644 --- a/drivers/hv/mshv_root.h +++ b/drivers/hv/mshv_root.h @@ -220,6 +220,29 @@ struct port_table_info { }; }; +struct mshv_device { + const struct mshv_device_ops *device_ops; + struct mshv_partition *device_pt; + void *device_private; + struct hlist_node device_ptnode; +}; + +struct mshv_device_ops { + const char *device_name; + long (*device_create)(struct mshv_device *dev, u32 type); + void (*device_release)(struct mshv_device *dev); + long (*device_set_attr)(struct mshv_device *dev, + struct mshv_device_attr *attr); + long (*device_has_attr)(struct mshv_device *dev, + struct mshv_device_attr *attr); +}; + +extern struct mshv_device_ops mshv_vfio_device_ops; +int mshv_vfio_ops_init(void); +void mshv_vfio_ops_exit(void); +long mshv_partition_ioctl_create_device(struct mshv_partition *partition, + void __user *user_args); + int mshv_update_routing_table(struct mshv_partition *partition, const struct mshv_user_irq_entry *entries, unsigned int numents); diff --git a/include/uapi/linux/mshv.h b/include/uapi/linux/mshv.h index dee3ece28ce5..b7b10f9e2896 100644 --- a/include/uapi/linux/mshv.h +++ b/include/uapi/linux/mshv.h @@ -252,6 +252,7 @@ struct mshv_root_hvcall { #define MSHV_GET_GPAP_ACCESS_BITMAP _IOWR(MSHV_IOCTL, 0x06, struct mshv_gpap_access_bitmap) /* Generic hypercall */ #define MSHV_ROOT_HVCALL _IOWR(MSHV_IOCTL, 0x07, struct mshv_root_hvcall) +#define MSHV_CREATE_DEVICE _IOWR(MSHV_IOCTL, 0x08, struct mshv_create_device) /* ******************************** @@ -402,4 +403,34 @@ struct mshv_sint_mask { /* hv_hvcall device */ #define MSHV_HVCALL_SETUP _IOW(MSHV_IOCTL, 0x1E, struct mshv_vtl_hvcall_setup) #define MSHV_HVCALL _IOWR(MSHV_IOCTL, 0x1F, struct mshv_vtl_hvcall) + +/* device passhthru */ +#define MSHV_CREATE_DEVICE_TEST 1 + +enum { + MSHV_DEV_TYPE_VFIO, + MSHV_DEV_TYPE_MAX, +}; + +struct mshv_create_device { + __u32 type; /* in: MSHV_DEV_TYPE_xxx */ + __u32 fd; /* out: device handle */ + __u32 flags; /* in: MSHV_CREATE_DEVICE_xxx */ +}; + +#define MSHV_DEV_VFIO_FILE 1 +#define MSHV_DEV_VFIO_FILE_ADD 1 +#define MSHV_DEV_VFIO_FILE_DEL 2 + +struct mshv_device_attr { + __u32 flags; /* no flags currently defined */ + __u32 group; /* device-defined */ + __u64 attr; /* group-defined */ + __u64 addr; /* userspace address of attr data */ +}; + +/* Device fds created with MSHV_CREATE_DEVICE */ +#define MSHV_SET_DEVICE_ATTR _IOW(MSHV_IOCTL, 0x00, struct mshv_device_attr) +#define MSHV_HAS_DEVICE_ATTR _IOW(MSHV_IOCTL, 0x01, struct mshv_device_attr) + #endif -- 2.51.2.vfs.0.1
