kvm_powerpc64.c revision 1.6
1/* $NetBSD: kvm_powerpc64.c,v 1.6 2014/08/23 02:25:23 matt Exp $ */ 2 3/* 4 * Copyright (c) 2005 Wasabi Systems, Inc. 5 * All rights reserved. 6 * 7 * Written by Allen Briggs for Wasabi Systems, Inc. 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 * 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. 24 * 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. 36 */ 37/*- 38 * Copyright (C) 1996 Wolfgang Solfrank. 39 * Copyright (C) 1996 TooLs GmbH. 40 * All rights reserved. 41 * 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. 55 * 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. 66 */ 67 68/* 69 * PowerPC machine dependent routines for kvm. 70 */ 71 72#include <sys/param.h> 73#include <sys/exec.h> 74#include <sys/types.h> 75 76#include <uvm/uvm_extern.h> 77 78#include <db.h> 79#include <limits.h> 80#include <kvm.h> 81#include <stdlib.h> 82#include <unistd.h> 83 84#include "kvm_private.h" 85 86#include <sys/kcore.h> 87#include <machine/kcore.h> 88 89#include <powerpc/spr.h> 90#include <powerpc/oea/bat.h> 91#include <powerpc/oea/pte.h> 92 93__RCSID("$NetBSD: kvm_powerpc64.c,v 1.6 2014/08/23 02:25:23 matt Exp $"); 94 95void 96_kvm_freevtop(kvm_t *kd) 97{ 98 if (kd->vmst != 0) 99 free(kd->vmst); 100} 101 102/*ARGSUSED*/ 103int 104_kvm_initvtop(kvm_t *kd) 105{ 106 107 return 0; 108} 109 110#define SR_VSID_HASH_MASK 0x0007ffff 111 112#define HASH_MASK 0x0007ffff 113 114/* 115 * Translate a KVA to a PA 116 */ 117int 118_kvm_kvatop(kvm_t *kd, vaddr_t va, paddr_t *pa) 119{ 120 121 if (ISALIVE(kd)) { 122 _kvm_err(kd, 0, "vatop called in live kernel!"); 123 return 0; 124 } 125 126#if 0 127 cpu_kcore_hdr_t *cpu_kh = kd->cpu_data; 128 uint32_t pvr = (cpu_kh->pvr >> 16); 129#endif 130 131 132 /* No hit -- no translation */ 133 *pa = (u_long)~0UL; 134 return 0; 135} 136 137off_t 138_kvm_pa2off(kvm_t *kd, paddr_t pa) 139{ 140 cpu_kcore_hdr_t *cpu_kh; 141 phys_ram_seg_t *ram; 142 off_t off; 143 void *e; 144 145 cpu_kh = kd->cpu_data; 146 e = (char *) kd->cpu_data + kd->cpu_dsize; 147 ram = (void *)((char *)(void *)cpu_kh + ALIGN(sizeof *cpu_kh)); 148 off = kd->dump_off; 149 do { 150 if (pa >= ram->start && (pa - ram->start) < ram->size) { 151 return off + (pa - ram->start); 152 } 153 ram++; 154 off += ram->size; 155 } while ((void *) ram < e && ram->size); 156 157 _kvm_err(kd, 0, "pa2off failed for pa 0x%08lx\n", pa); 158 return (off_t) -1; 159} 160 161/* 162 * Machine-dependent initialization for ALL open kvm descriptors, 163 * not just those for a kernel crash dump. Some architectures 164 * have to deal with these NOT being constants! (i.e. m68k) 165 */ 166int 167_kvm_mdopen(kvm_t *kd) 168{ 169 uintptr_t max_uva; 170 extern struct ps_strings *__ps_strings; 171 172#if 0 /* XXX - These vary across powerpc machines... */ 173 kd->usrstack = USRSTACK; 174 kd->min_uva = VM_MIN_ADDRESS; 175 kd->max_uva = VM_MAXUSER_ADDRESS; 176#endif 177 /* This is somewhat hack-ish, but it works. */ 178 max_uva = (uintptr_t) (__ps_strings + 1); 179 kd->usrstack = max_uva; 180 kd->max_uva = max_uva; 181 kd->min_uva = 0; 182 183 return (0); 184} 185