lib/arm64/ffa_mailbox.h

/*
 * Copyright 2018 The Hafnium Authors.
 *
 * Use of this source code is governed by a BSD-style
 * license that can be found in the LICENSE file or at
 * https://opensource.org/licenses/BSD-3-Clause.
 */

#pragma once

#include "ffa.h"
#include "call.h"


struct mailbox_buffers {
	void *send;
	void *recv;
};

struct mailbox_buffers set_up_mailbox(void);
ffa_memory_handle_t send_memory_and_retrieve_request(
	uint32_t share_func, void *tx_buffer, ffa_vm_id_t sender,
	ffa_vm_id_t recipient,
	struct ffa_memory_region_constituent constituents[],
	uint32_t constituent_count, ffa_memory_region_flags_t flags,
	enum ffa_data_access send_data_access,
	enum ffa_data_access retrieve_data_access,
	enum ffa_instruction_access send_instruction_access,
	enum ffa_instruction_access retrieve_instruction_access);
ffa_memory_handle_t send_memory_and_retrieve_request_force_fragmented(
	uint32_t share_func, void *tx_buffer, ffa_vm_id_t sender,
	ffa_vm_id_t recipient,
	struct ffa_memory_region_constituent constituents[],
	uint32_t constituent_count, ffa_memory_region_flags_t flags,
	enum ffa_data_access send_data_access,
	enum ffa_data_access retrieve_data_access,
	enum ffa_instruction_access send_instruction_access,
	enum ffa_instruction_access retrieve_instruction_access);
ffa_vm_id_t retrieve_memory_from_message(
	void *recv_buf, void *send_buf, struct ffa_value msg_ret,
	ffa_memory_handle_t *handle,
	struct ffa_memory_region *memory_region_ret,
	size_t memory_region_max_size);
ffa_vm_id_t retrieve_memory_from_message_expect_fail(void *recv_buf,
						     void *send_buf,
						     struct ffa_value msg_ret,
						     int32_t expected_error);