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#ifndef _UAPI_SMCINVOKE_H_
#define _UAPI_SMCINVOKE_H_
#include <linux/types.h>
#include <linux/ioctl.h>
#define SMCINVOKE_USERSPACE_OBJ_NULL -1
struct smcinvoke_buf {
uint64_t addr;
uint64_t size;
};
struct smcinvoke_obj {
int64_t fd;
int32_t cb_server_fd;
int32_t reserved;
};
union smcinvoke_arg {
struct smcinvoke_buf b;
struct smcinvoke_obj o;
};
/*
* struct smcinvoke_cmd_req: This structure is transparently sent to TEE
* @op - Operation to be performed
* @counts - number of aruments passed
* @result - result of invoke operation
* @argsize - size of each of arguments
* @args - args is pointer to buffer having all arguments
*/
struct smcinvoke_cmd_req {
uint32_t op;
uint32_t counts;
int32_t result;
uint32_t argsize;
uint64_t args;
};
/*
* struct smcinvoke_accept: structure to process CB req from TEE
* @has_resp: IN: Whether IOCTL is carrying response data
* @txn_id: OUT: An id that should be passed as it is for response
* @result: IN: Outcome of operation op
* @cbobj_id: OUT: Callback object which is target of operation op
* @op: OUT: Operation to be performed on target object
* @counts: OUT: Number of arguments, embedded in buffer pointed by
* buf_addr, to complete operation
* @reserved: IN/OUT: Usage is not defined but should be set to 0.
* @argsize: IN: Size of any argument, all of equal size, embedded
* in buffer pointed by buf_addr
* @buf_len: IN: Len of buffer pointed by buf_addr
* @buf_addr: IN: Buffer containing all arguments which are needed
* to complete operation op
*/
struct smcinvoke_accept {
uint32_t has_resp;
uint32_t txn_id;
int32_t result;
int32_t cbobj_id;
uint32_t op;
uint32_t counts;
int32_t reserved;
uint32_t argsize;
uint64_t buf_len;
uint64_t buf_addr;
};
/*
* @cb_buf_size: IN: Max buffer size for any callback obj implemented by client
*/
struct smcinvoke_server {
uint32_t cb_buf_size;
};
#define SMCINVOKE_IOC_MAGIC 0x98
#define SMCINVOKE_IOCTL_INVOKE_REQ \
_IOWR(SMCINVOKE_IOC_MAGIC, 1, struct smcinvoke_cmd_req)
#define SMCINVOKE_IOCTL_ACCEPT_REQ \
_IOWR(SMCINVOKE_IOC_MAGIC, 2, struct smcinvoke_accept)
#define SMCINVOKE_IOCTL_SERVER_REQ \
_IOWR(SMCINVOKE_IOC_MAGIC, 3, struct smcinvoke_server)
#define SMCINVOKE_IOCTL_ACK_LOCAL_OBJ \
_IOWR(SMCINVOKE_IOC_MAGIC, 4, int32_t)
#endif /* _UAPI_SMCINVOKE_H_ */
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