xref: /dragonfly/test/nvmm/demo/toyvirt/common.h (revision 655933d6)
1 /*
2  * Copyright (c) 2018-2021 Maxime Villard, m00nbsd.net
3  * All rights reserved.
4  *
5  * This code is part of the NVMM hypervisor.
6  *
7  * Redistribution and use in source and binary forms, with or without
8  * modification, are permitted provided that the following conditions
9  * are met:
10  * 1. Redistributions of source code must retain the above copyright
11  *    notice, this list of conditions and the following disclaimer.
12  * 2. Redistributions in binary form must reproduce the above copyright
13  *    notice, this list of conditions and the following disclaimer in the
14  *    documentation and/or other materials provided with the distribution.
15  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
17  * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
18  * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
19  * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
20  * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
21  * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22  * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
23  * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
24  * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 /*
30  * Shared stuff within toyvirt.
31  */
32 
33 #include <nvmm.h>
34 
35 #define PAGE_SIZE	4096
36 #define rounddown(x,y)	(((x)/(y))*(y))
37 #define roundup(x, y)	((((x)+((y)-1))/(y))*(y))
38 
39 /* main.c */
40 uintptr_t toyvirt_mem_add(struct nvmm_machine *, gpaddr_t, size_t);
41 
42 /* toydev.c */
43 void toydev_mmio(gpaddr_t, bool, uint8_t *, size_t);
44 void toydev_io(int, bool, uint8_t *, size_t);
45 
46 /* elf.c */
47 int elf_map(struct nvmm_machine *, const char *, uint64_t *);
48