| /**************************************************************************** |
| **************************************************************************** |
| *** |
| *** This header was automatically generated from a Linux kernel header |
| *** of the same name, to make information necessary for userspace to |
| *** call into the kernel available to libc. It contains only constants, |
| *** structures, and macros generated from the original header, and thus, |
| *** contains no copyrightable information. |
| *** |
| *** To edit the content of this header, modify the corresponding |
| *** source file (e.g. under external/kernel-headers/original/) then |
| *** run bionic/libc/kernel/tools/update_all.py |
| *** |
| *** Any manual change here will be lost the next time this script will |
| *** be run. You've been warned! |
| *** |
| **************************************************************************** |
| ****************************************************************************/ |
| #ifndef _UAPI_VDUSE_H_ |
| #define _UAPI_VDUSE_H_ |
| #include <linux/types.h> |
| #define VDUSE_BASE 0x81 |
| #define VDUSE_API_VERSION 0 |
| #define VDUSE_GET_API_VERSION _IOR(VDUSE_BASE, 0x00, __u64) |
| #define VDUSE_SET_API_VERSION _IOW(VDUSE_BASE, 0x01, __u64) |
| struct vduse_dev_config { |
| #define VDUSE_NAME_MAX 256 |
| char name[VDUSE_NAME_MAX]; |
| __u32 vendor_id; |
| __u32 device_id; |
| __u64 features; |
| __u32 vq_num; |
| __u32 vq_align; |
| __u32 reserved[13]; |
| __u32 config_size; |
| __u8 config[]; |
| }; |
| #define VDUSE_CREATE_DEV _IOW(VDUSE_BASE, 0x02, struct vduse_dev_config) |
| #define VDUSE_DESTROY_DEV _IOW(VDUSE_BASE, 0x03, char[VDUSE_NAME_MAX]) |
| struct vduse_iotlb_entry { |
| __u64 offset; |
| __u64 start; |
| __u64 last; |
| #define VDUSE_ACCESS_RO 0x1 |
| #define VDUSE_ACCESS_WO 0x2 |
| #define VDUSE_ACCESS_RW 0x3 |
| __u8 perm; |
| }; |
| #define VDUSE_IOTLB_GET_FD _IOWR(VDUSE_BASE, 0x10, struct vduse_iotlb_entry) |
| #define VDUSE_DEV_GET_FEATURES _IOR(VDUSE_BASE, 0x11, __u64) |
| struct vduse_config_data { |
| __u32 offset; |
| __u32 length; |
| __u8 buffer[]; |
| }; |
| #define VDUSE_DEV_SET_CONFIG _IOW(VDUSE_BASE, 0x12, struct vduse_config_data) |
| #define VDUSE_DEV_INJECT_CONFIG_IRQ _IO(VDUSE_BASE, 0x13) |
| struct vduse_vq_config { |
| __u32 index; |
| __u16 max_size; |
| __u16 reserved[13]; |
| }; |
| #define VDUSE_VQ_SETUP _IOW(VDUSE_BASE, 0x14, struct vduse_vq_config) |
| struct vduse_vq_state_split { |
| __u16 avail_index; |
| }; |
| struct vduse_vq_state_packed { |
| __u16 last_avail_counter; |
| __u16 last_avail_idx; |
| __u16 last_used_counter; |
| __u16 last_used_idx; |
| }; |
| struct vduse_vq_info { |
| __u32 index; |
| __u32 num; |
| __u64 desc_addr; |
| __u64 driver_addr; |
| __u64 device_addr; |
| union { |
| struct vduse_vq_state_split split; |
| struct vduse_vq_state_packed packed; |
| }; |
| __u8 ready; |
| }; |
| #define VDUSE_VQ_GET_INFO _IOWR(VDUSE_BASE, 0x15, struct vduse_vq_info) |
| struct vduse_vq_eventfd { |
| __u32 index; |
| #define VDUSE_EVENTFD_DEASSIGN - 1 |
| int fd; |
| }; |
| #define VDUSE_VQ_SETUP_KICKFD _IOW(VDUSE_BASE, 0x16, struct vduse_vq_eventfd) |
| #define VDUSE_VQ_INJECT_IRQ _IOW(VDUSE_BASE, 0x17, __u32) |
| enum vduse_req_type { |
| VDUSE_GET_VQ_STATE, |
| VDUSE_SET_STATUS, |
| VDUSE_UPDATE_IOTLB, |
| }; |
| struct vduse_vq_state { |
| __u32 index; |
| union { |
| struct vduse_vq_state_split split; |
| struct vduse_vq_state_packed packed; |
| }; |
| }; |
| struct vduse_dev_status { |
| __u8 status; |
| }; |
| struct vduse_iova_range { |
| __u64 start; |
| __u64 last; |
| }; |
| struct vduse_dev_request { |
| __u32 type; |
| __u32 request_id; |
| __u32 reserved[4]; |
| union { |
| struct vduse_vq_state vq_state; |
| struct vduse_dev_status s; |
| struct vduse_iova_range iova; |
| __u32 padding[32]; |
| }; |
| }; |
| struct vduse_dev_response { |
| __u32 request_id; |
| #define VDUSE_REQ_RESULT_OK 0x00 |
| #define VDUSE_REQ_RESULT_FAILED 0x01 |
| __u32 result; |
| __u32 reserved[4]; |
| union { |
| struct vduse_vq_state vq_state; |
| __u32 padding[32]; |
| }; |
| }; |
| #endif |