xref: /freebsd/lib/libkvm/kvm_powerpc64.h (revision f81cdf24ba5436367377f7c8e8f51f6df2a75ca7)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
3  *
4  * Copyright (c) 2019 Leandro Lupori
5  *
6  * Redistribution and use in source and binary forms, with or without
7  * modification, are permitted provided that the following conditions
8  * are met:
9  * 1. Redistributions of source code must retain the above copyright
10  *    notice, this list of conditions and the following disclaimer.
11  * 2. Redistributions in binary form must reproduce the above copyright
12  *    notice, this list of conditions and the following disclaimer in the
13  *    documentation and/or other materials provided with the distribution.
14  *
15  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
16  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
17  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
18  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
19  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
20  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
21  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
22  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
23  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
24  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
25  * SUCH DAMAGE.
26  */
27 
28 #ifndef	__KVM_POWERPC64_H__
29 #define	__KVM_POWERPC64_H__
30 
31 /* Debug stuff */
32 #define	KVM_PPC64_DBG	0
33 #if	KVM_PPC64_DBG
34 #include <stdio.h>
35 #define	dprintf(fmt, ...)	printf(fmt, ## __VA_ARGS__)
36 #else
37 #define	dprintf(fmt, ...)
38 #endif
39 
40 
41 #define	PPC64_KERNBASE		0x100100ULL
42 
43 /* Page params */
44 #define	PPC64_PAGE_SHIFT	12
45 #define	PPC64_PAGE_SIZE		(1ULL << PPC64_PAGE_SHIFT)
46 #define	PPC64_PAGE_MASK		(PPC64_PAGE_SIZE - 1)
47 
48 #define	ppc64_round_page(x)	roundup2((kvaddr_t)(x), PPC64_PAGE_SIZE)
49 
50 #define	PPC64_MMU_G5		"mmu_g5"
51 #define	PPC64_MMU_PHYP		"mmu_phyp"
52 
53 /* MMU interface */
54 #define	PPC64_MMU_OPS(kd)	(kd)->vmst->mmu.ops
55 #define	PPC64_MMU_OP(kd, op, ...) PPC64_MMU_OPS(kd)->op((kd), ## __VA_ARGS__)
56 #define	PPC64_MMU_DATA(kd)	(kd)->vmst->mmu.data
57 
58 struct ppc64_mmu_ops {
59 	int (*init)(kvm_t *);
60 	void (*cleanup)(kvm_t *);
61 	int (*kvatop)(kvm_t *, kvaddr_t, off_t *);
62 	int (*walk_pages)(kvm_t *, kvm_walk_pages_cb_t *, void *);
63 };
64 
65 struct ppc64_mmu {
66 	struct ppc64_mmu_ops *ops;
67 	void *data;
68 };
69 
70 struct vmstate {
71 	struct minidumphdr hdr;
72 	uint64_t kimg_start;
73 	uint64_t kimg_end;
74 	struct ppc64_mmu mmu;
75 };
76 
77 extern struct ppc64_mmu_ops *ppc64_mmu_ops_hpt;
78 
79 #endif /* !__KVM_POWERPC64_H__ */
80