test/vmapi/common/spci.c

/*
 * Copyright 2018 The Hafnium Authors.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *     https://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

#include "hf/spci.h"

#include "hf/mm.h"
#include "hf/static_assert.h"

#include "vmapi/hf/call.h"

#include "test/hftest.h"
#include "test/vmapi/spci.h"

static alignas(PAGE_SIZE) uint8_t send_page[PAGE_SIZE];
static alignas(PAGE_SIZE) uint8_t recv_page[PAGE_SIZE];
static_assert(sizeof(send_page) == PAGE_SIZE, "Send page is not a page.");
static_assert(sizeof(recv_page) == PAGE_SIZE, "Recv page is not a page.");

static hf_ipaddr_t send_page_addr = (hf_ipaddr_t)send_page;
static hf_ipaddr_t recv_page_addr = (hf_ipaddr_t)recv_page;

struct mailbox_buffers set_up_mailbox(void)
{
	ASSERT_EQ(spci_rxtx_map(send_page_addr, recv_page_addr).func,
		  SPCI_SUCCESS_32);
	return (struct mailbox_buffers){
		.send = send_page,
		.recv = recv_page,
	};
}