xref: /freebsd/sys/arm64/vmm/mmu.h (revision 47e07394)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (C) 2017 Alexandru Elisei <alexandru.elisei@gmail.com>
5  *
6  * This software was developed by Alexandru Elisei under sponsorship
7  * from the FreeBSD Foundation.
8  *
9  * Redistribution and use in source and binary forms, with or without
10  * modification, are permitted provided that the following conditions
11  * are met:
12  * 1. Redistributions of source code must retain the above copyright
13  *    notice, this list of conditions and the following disclaimer.
14  * 2. Redistributions in binary form must reproduce the above copyright
15  *    notice, this list of conditions and the following disclaimer in the
16  *    documentation and/or other materials provided with the distribution.
17  *
18  * THIS SOFTWARE IS PROVIDED BY AUTHOR AND CONTRIBUTORS ``AS IS'' AND
19  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
20  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
21  * ARE DISCLAIMED.  IN NO EVENT SHALL AUTHOR OR CONTRIBUTORS BE LIABLE
22  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
23  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
24  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
25  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
26  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
27  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
28  * SUCH DAMAGE.
29  */
30 
31 #ifndef _VMM_MMU_H_
32 #define	_VMM_MMU_H_
33 
34 #include <machine/machdep.h>
35 #include <machine/vmparam.h>
36 #include <machine/vmm.h>
37 
38 #include "hyp.h"
39 
40 extern char vmm_hyp_code;
41 extern char vmm_hyp_code_end;
42 
43 extern char _vmm_start;
44 extern char _vmm_end;
45 
46 bool	vmmpmap_init(void);
47 void	vmmpmap_fini(void);
48 uint64_t vmmpmap_to_ttbr0(void);
49 bool	vmmpmap_enter(vm_offset_t, vm_size_t, vm_paddr_t, vm_prot_t);
50 void	vmmpmap_remove(vm_offset_t, vm_size_t, bool);
51 
52 #endif
53