xref: /illumos-gate/usr/src/uts/i86pc/sys/pc_mmu.h (revision 74ecdb51)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  *
25  * Copyright 2018 Joyent, Inc.
26  */
27 
28 #ifndef _SYS_PC_MMU_H
29 #define	_SYS_PC_MMU_H
30 
31 #ifdef __cplusplus
32 extern "C" {
33 #endif
34 
35 /*
36  * Platform-dependent MMU routines and types for real x86 hardware.
37  *
38  * WARNING: this header file is used by both dboot and i86pc, so don't go using
39  * normal kernel headers.
40  */
41 
42 #define	IN_HYPERVISOR_VA(va) (__lintzero)
43 
44 void reload_cr3(void);
45 
46 #define	pa_to_ma(pa) (pa)
47 #define	ma_to_pa(ma) (ma)
48 #define	pfn_to_mfn(pfn) (pfn)
49 #define	mfn_to_pfn(mfn)	(mfn)
50 
51 #ifndef _BOOT
52 
53 extern uint64_t kpti_safe_cr3;
54 
55 #define	INVPCID_ADDR		(0)
56 #define	INVPCID_ID		(1)
57 #define	INVPCID_ALL_GLOBAL	(2)
58 #define	INVPCID_ALL_NONGLOBAL	(3)
59 
60 extern void invpcid_insn(uint64_t, uint64_t, uintptr_t);
61 extern void tr_mmu_flush_user_range(uint64_t, size_t, size_t, uint64_t);
62 
63 #if defined(__GNUC__)
64 #include <asm/mmu.h>
65 #endif
66 
67 #endif /* !_BOOT */
68 
69 #ifdef __cplusplus
70 }
71 #endif
72 
73 #endif	/* _SYS_PC_MMU_H */
74