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[netbsd-mini2440.git] / lib / libkvm / kvm_powerpc64.c
blob7b8d05e7c283292b9b8714e18902aa28b5c29326
1 /* $NetBSD: kvm_powerpc64.c,v 1.1 2006/07/01 19:21:11 ross Exp $ */
3 /*
4 * Copyright (c) 2005 Wasabi Systems, Inc.
5 * All rights reserved.
7 * Written by Allen Briggs for Wasabi Systems, Inc.
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 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed for the NetBSD Project by
20 * Wasabi Systems, Inc.
21 * 4. The name of Wasabi Systems, Inc. may not be used to endorse
22 * or promote products derived from this software without specific prior
23 * written permission.
25 * THIS SOFTWARE IS PROVIDED BY WASABI SYSTEMS, INC. ``AS IS'' AND
26 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
27 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
28 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL WASABI SYSTEMS, INC
29 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
30 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
31 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
32 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
33 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
34 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
35 * POSSIBILITY OF SUCH DAMAGE.
37 /*-
38 * Copyright (C) 1996 Wolfgang Solfrank.
39 * Copyright (C) 1996 TooLs GmbH.
40 * All rights reserved.
42 * Redistribution and use in source and binary forms, with or without
43 * modification, are permitted provided that the following conditions
44 * are met:
45 * 1. Redistributions of source code must retain the above copyright
46 * notice, this list of conditions and the following disclaimer.
47 * 2. Redistributions in binary form must reproduce the above copyright
48 * notice, this list of conditions and the following disclaimer in the
49 * documentation and/or other materials provided with the distribution.
50 * 3. All advertising materials mentioning features or use of this software
51 * must display the following acknowledgement:
52 * This product includes software developed by TooLs GmbH.
53 * 4. The name of TooLs GmbH may not be used to endorse or promote products
54 * derived from this software without specific prior written permission.
56 * THIS SOFTWARE IS PROVIDED BY TOOLS GMBH ``AS IS'' AND ANY EXPRESS OR
57 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
58 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
59 * IN NO EVENT SHALL TOOLS GMBH BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
60 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
61 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
62 * OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
63 * WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR
64 * OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF
65 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
69 * PowerPC machine dependent routines for kvm.
72 #include <sys/param.h>
73 #include <sys/exec.h>
75 #include <uvm/uvm_extern.h>
77 #include <db.h>
78 #include <limits.h>
79 #include <kvm.h>
80 #include <stdlib.h>
81 #include <unistd.h>
83 #include "kvm_private.h"
85 #include <sys/kcore.h>
86 #include <machine/kcore.h>
88 #include <powerpc/spr.h>
89 #include <powerpc/oea/bat.h>
90 #include <powerpc/oea/pte.h>
92 void
93 _kvm_freevtop(kd)
94 kvm_t *kd;
96 if (kd->vmst != 0)
97 free(kd->vmst);
100 /*ARGSUSED*/
102 _kvm_initvtop(kd)
103 kvm_t *kd;
106 return 0;
109 #define SR_VSID_HASH_MASK 0x0007ffff
111 #define HASH_MASK 0x0007ffff
114 * Translate a KVA to a PA
117 _kvm_kvatop(kd, va, pa)
118 kvm_t *kd;
119 u_long va;
120 u_long *pa;
122 cpu_kcore_hdr_t *cpu_kh;
123 uint32_t pvr;
125 if (ISALIVE(kd)) {
126 _kvm_err(kd, 0, "vatop called in live kernel!");
127 return 0;
130 cpu_kh = kd->cpu_data;
132 pvr = (cpu_kh->pvr >> 16);
135 /* No hit -- no translation */
136 *pa = (u_long)~0UL;
137 return 0;
140 off_t
141 _kvm_pa2off(kd, pa)
142 kvm_t *kd;
143 u_long pa;
145 cpu_kcore_hdr_t *cpu_kh;
146 phys_ram_seg_t *ram;
147 off_t off;
148 void *e;
150 cpu_kh = kd->cpu_data;
151 e = (char *) kd->cpu_data + kd->cpu_dsize;
152 ram = (void *)((char *)(void *)cpu_kh + ALIGN(sizeof *cpu_kh));
153 off = kd->dump_off;
154 do {
155 if (pa >= ram->start && (pa - ram->start) < ram->size) {
156 return off + (pa - ram->start);
158 ram++;
159 off += ram->size;
160 } while ((void *) ram < e && ram->size);
162 _kvm_err(kd, 0, "pa2off failed for pa 0x%08lx\n", pa);
163 return (off_t) -1;
167 * Machine-dependent initialization for ALL open kvm descriptors,
168 * not just those for a kernel crash dump. Some architectures
169 * have to deal with these NOT being constants! (i.e. m68k)
172 _kvm_mdopen(kd)
173 kvm_t *kd;
175 uintptr_t max_uva;
176 extern struct ps_strings *__ps_strings;
178 #if 0 /* XXX - These vary across powerpc machines... */
179 kd->usrstack = USRSTACK;
180 kd->min_uva = VM_MIN_ADDRESS;
181 kd->max_uva = VM_MAXUSER_ADDRESS;
182 #endif
183 /* This is somewhat hack-ish, but it works. */
184 max_uva = (uintptr_t) (__ps_strings + 1);
185 kd->usrstack = max_uva;
186 kd->max_uva = max_uva;
187 kd->min_uva = 0;
189 return (0);