The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1 | /* |
| 2 | * virtual page mapping and translated block handling |
| 3 | * |
| 4 | * Copyright (c) 2003 Fabrice Bellard |
| 5 | * |
| 6 | * This library is free software; you can redistribute it and/or |
| 7 | * modify it under the terms of the GNU Lesser General Public |
| 8 | * License as published by the Free Software Foundation; either |
| 9 | * version 2 of the License, or (at your option) any later version. |
| 10 | * |
| 11 | * This library is distributed in the hope that it will be useful, |
| 12 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 13 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 14 | * Lesser General Public License for more details. |
| 15 | * |
| 16 | * You should have received a copy of the GNU Lesser General Public |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 17 | * License along with this library; if not, see <http://www.gnu.org/licenses/>. |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 18 | */ |
| 19 | #include "config.h" |
| 20 | #ifdef _WIN32 |
| 21 | #define WIN32_LEAN_AND_MEAN |
| 22 | #include <windows.h> |
| 23 | #else |
| 24 | #include <sys/types.h> |
| 25 | #include <sys/mman.h> |
| 26 | #endif |
| 27 | #include <stdlib.h> |
| 28 | #include <stdio.h> |
| 29 | #include <stdarg.h> |
| 30 | #include <string.h> |
| 31 | #include <errno.h> |
| 32 | #include <unistd.h> |
| 33 | #include <inttypes.h> |
| 34 | |
| 35 | #include "cpu.h" |
David 'Digit' Turner | 852088c | 2013-12-14 23:04:12 +0100 | [diff] [blame] | 36 | #include "exec/exec-all.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 37 | #include "qemu-common.h" |
| 38 | #include "tcg.h" |
| 39 | #include "hw/hw.h" |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 40 | #include "hw/xen/xen.h" |
David 'Digit' Turner | 8456913 | 2013-12-13 17:34:07 +0100 | [diff] [blame] | 41 | #include "qemu/osdep.h" |
David 'Digit' Turner | 34c48ff | 2013-12-15 00:25:03 +0100 | [diff] [blame] | 42 | #include "sysemu/kvm.h" |
David 'Digit' Turner | 3dc53fc | 2014-01-17 01:23:40 +0100 | [diff] [blame] | 43 | #include "exec/cputlb.h" |
David 'Digit' Turner | e1e03df | 2013-12-15 00:42:21 +0100 | [diff] [blame] | 44 | #include "exec/hax.h" |
David 'Digit' Turner | 7a78db7 | 2013-12-14 11:46:01 +0100 | [diff] [blame] | 45 | #include "qemu/timer.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 46 | #if defined(CONFIG_USER_ONLY) |
| 47 | #include <qemu.h> |
| 48 | #endif |
Vladimir Chtchetkine | 5389aa1 | 2010-02-16 10:38:35 -0800 | [diff] [blame] | 49 | #ifdef CONFIG_MEMCHECK |
| 50 | #include "memcheck/memcheck_api.h" |
| 51 | #endif // CONFIG_MEMCHECK |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 52 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 53 | //#define DEBUG_SUBPAGE |
| 54 | |
| 55 | #if !defined(CONFIG_USER_ONLY) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 56 | int phys_ram_fd; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 57 | static int in_migration; |
| 58 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 59 | RAMList ram_list = { .blocks = QTAILQ_HEAD_INITIALIZER(ram_list.blocks) }; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 60 | #endif |
| 61 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 62 | CPUArchState *first_cpu; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 63 | /* current CPU in the current thread. It is only valid inside |
| 64 | cpu_exec() */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 65 | CPUArchState *cpu_single_env; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 66 | /* 0 = Do not count executed instructions. |
| 67 | 1 = Precise instruction counting. |
| 68 | 2 = Adaptive rate instruction counting. */ |
| 69 | int use_icount = 0; |
| 70 | /* Current instruction counter. While executing translated code this may |
| 71 | include some instructions that have not yet been executed. */ |
| 72 | int64_t qemu_icount; |
| 73 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 74 | #if !defined(CONFIG_USER_ONLY) |
| 75 | static void io_mem_init(void); |
| 76 | |
| 77 | /* io memory support */ |
| 78 | CPUWriteMemoryFunc *io_mem_write[IO_MEM_NB_ENTRIES][4]; |
| 79 | CPUReadMemoryFunc *io_mem_read[IO_MEM_NB_ENTRIES][4]; |
| 80 | void *io_mem_opaque[IO_MEM_NB_ENTRIES]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 81 | static char io_mem_used[IO_MEM_NB_ENTRIES]; |
David 'Digit' Turner | 3dc53fc | 2014-01-17 01:23:40 +0100 | [diff] [blame] | 82 | int io_mem_watch; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 83 | #endif |
| 84 | |
| 85 | /* log support */ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 86 | #ifdef WIN32 |
| 87 | static const char *logfilename = "qemu.log"; |
| 88 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 89 | static const char *logfilename = "/tmp/qemu.log"; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 90 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 91 | FILE *logfile; |
| 92 | int loglevel; |
| 93 | static int log_append = 0; |
| 94 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 95 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK) |
| 96 | typedef struct subpage_t { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 97 | hwaddr base; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 98 | CPUReadMemoryFunc **mem_read[TARGET_PAGE_SIZE][4]; |
| 99 | CPUWriteMemoryFunc **mem_write[TARGET_PAGE_SIZE][4]; |
| 100 | void *opaque[TARGET_PAGE_SIZE][2][4]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 101 | ram_addr_t region_offset[TARGET_PAGE_SIZE][2][4]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 102 | } subpage_t; |
| 103 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 104 | /* Must be called before using the QEMU cpus. 'tb_size' is the size |
| 105 | (in bytes) allocated to the translation buffer. Zero means default |
| 106 | size. */ |
| 107 | void cpu_exec_init_all(unsigned long tb_size) |
| 108 | { |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame^] | 109 | //cpu_gen_init(); |
| 110 | //code_gen_alloc(tb_size); |
| 111 | //code_gen_ptr = code_gen_buffer; |
| 112 | //page_init(); |
| 113 | tcg_exec_init(tb_size); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 114 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 115 | qemu_mutex_init(&ram_list.mutex); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 116 | io_mem_init(); |
| 117 | #endif |
| 118 | } |
| 119 | |
| 120 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
| 121 | |
| 122 | #define CPU_COMMON_SAVE_VERSION 1 |
| 123 | |
| 124 | static void cpu_common_save(QEMUFile *f, void *opaque) |
| 125 | { |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 126 | CPUOldState *env = opaque; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 127 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 128 | cpu_synchronize_state(env, 0); |
| 129 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 130 | qemu_put_be32s(f, &env->halted); |
| 131 | qemu_put_be32s(f, &env->interrupt_request); |
| 132 | } |
| 133 | |
| 134 | static int cpu_common_load(QEMUFile *f, void *opaque, int version_id) |
| 135 | { |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 136 | CPUOldState *env = opaque; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 137 | |
| 138 | if (version_id != CPU_COMMON_SAVE_VERSION) |
| 139 | return -EINVAL; |
| 140 | |
| 141 | qemu_get_be32s(f, &env->halted); |
| 142 | qemu_get_be32s(f, &env->interrupt_request); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 143 | /* 0x01 was CPU_INTERRUPT_EXIT. This line can be removed when the |
| 144 | version_id is increased. */ |
| 145 | env->interrupt_request &= ~0x01; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 146 | tlb_flush(env, 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 147 | cpu_synchronize_state(env, 1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 148 | |
| 149 | return 0; |
| 150 | } |
| 151 | #endif |
| 152 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 153 | CPUArchState *qemu_get_cpu(int cpu) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 154 | { |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 155 | CPUArchState *env = first_cpu; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 156 | |
| 157 | while (env) { |
| 158 | if (env->cpu_index == cpu) |
| 159 | break; |
| 160 | env = env->next_cpu; |
| 161 | } |
| 162 | |
| 163 | return env; |
| 164 | } |
| 165 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 166 | void cpu_exec_init(CPUArchState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 167 | { |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 168 | CPUArchState **penv; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 169 | int cpu_index; |
| 170 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 171 | #if defined(CONFIG_USER_ONLY) |
| 172 | cpu_list_lock(); |
| 173 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 174 | env->next_cpu = NULL; |
| 175 | penv = &first_cpu; |
| 176 | cpu_index = 0; |
| 177 | while (*penv != NULL) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 178 | penv = &(*penv)->next_cpu; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 179 | cpu_index++; |
| 180 | } |
| 181 | env->cpu_index = cpu_index; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 182 | env->numa_node = 0; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 183 | QTAILQ_INIT(&env->breakpoints); |
| 184 | QTAILQ_INIT(&env->watchpoints); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 185 | *penv = env; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 186 | #if defined(CONFIG_USER_ONLY) |
| 187 | cpu_list_unlock(); |
| 188 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 189 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 5cb5c0b | 2014-02-17 16:04:03 +0100 | [diff] [blame] | 190 | register_savevm(NULL, |
| 191 | "cpu_common", |
| 192 | cpu_index, |
| 193 | CPU_COMMON_SAVE_VERSION, |
| 194 | cpu_common_save, |
| 195 | cpu_common_load, |
| 196 | env); |
| 197 | register_savevm(NULL, |
| 198 | "cpu", |
| 199 | cpu_index, |
| 200 | CPU_SAVE_VERSION, |
| 201 | cpu_save, |
| 202 | cpu_load, |
| 203 | env); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 204 | #endif |
| 205 | } |
| 206 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 207 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 208 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 209 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 210 | hwaddr addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 211 | target_ulong pd; |
| 212 | ram_addr_t ram_addr; |
| 213 | PhysPageDesc *p; |
| 214 | |
| 215 | addr = cpu_get_phys_page_debug(env, pc); |
| 216 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 217 | if (!p) { |
| 218 | pd = IO_MEM_UNASSIGNED; |
| 219 | } else { |
| 220 | pd = p->phys_offset; |
| 221 | } |
| 222 | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); |
| 223 | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
| 224 | } |
| 225 | #endif |
| 226 | |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 227 | #if defined(CONFIG_USER_ONLY) |
| 228 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
| 229 | |
| 230 | { |
| 231 | } |
| 232 | |
| 233 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
| 234 | int flags, CPUWatchpoint **watchpoint) |
| 235 | { |
| 236 | return -ENOSYS; |
| 237 | } |
| 238 | #else |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 239 | /* Add a watchpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 240 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 241 | int flags, CPUWatchpoint **watchpoint) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 242 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 243 | target_ulong len_mask = ~(len - 1); |
| 244 | CPUWatchpoint *wp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 245 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 246 | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */ |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 247 | if ((len & (len - 1)) || (addr & ~len_mask) || |
| 248 | len == 0 || len > TARGET_PAGE_SIZE) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 249 | fprintf(stderr, "qemu: tried to set invalid watchpoint at " |
| 250 | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
| 251 | return -EINVAL; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 252 | } |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 253 | wp = g_malloc(sizeof(*wp)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 254 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 255 | wp->vaddr = addr; |
| 256 | wp->len_mask = len_mask; |
| 257 | wp->flags = flags; |
| 258 | |
| 259 | /* keep all GDB-injected watchpoints in front */ |
| 260 | if (flags & BP_GDB) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 261 | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 262 | else |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 263 | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 264 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 265 | tlb_flush_page(env, addr); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 266 | |
| 267 | if (watchpoint) |
| 268 | *watchpoint = wp; |
| 269 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 270 | } |
| 271 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 272 | /* Remove a specific watchpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 273 | int cpu_watchpoint_remove(CPUArchState *env, target_ulong addr, target_ulong len, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 274 | int flags) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 275 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 276 | target_ulong len_mask = ~(len - 1); |
| 277 | CPUWatchpoint *wp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 278 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 279 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 280 | if (addr == wp->vaddr && len_mask == wp->len_mask |
| 281 | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
| 282 | cpu_watchpoint_remove_by_ref(env, wp); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 283 | return 0; |
| 284 | } |
| 285 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 286 | return -ENOENT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 287 | } |
| 288 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 289 | /* Remove a specific watchpoint by reference. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 290 | void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 291 | { |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 292 | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 293 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 294 | tlb_flush_page(env, watchpoint->vaddr); |
| 295 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 296 | g_free(watchpoint); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 297 | } |
| 298 | |
| 299 | /* Remove all matching watchpoints. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 300 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 301 | { |
| 302 | CPUWatchpoint *wp, *next; |
| 303 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 304 | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 305 | if (wp->flags & mask) |
| 306 | cpu_watchpoint_remove_by_ref(env, wp); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 307 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 308 | } |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 309 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 310 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 311 | /* Add a breakpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 312 | int cpu_breakpoint_insert(CPUArchState *env, target_ulong pc, int flags, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 313 | CPUBreakpoint **breakpoint) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 314 | { |
| 315 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 316 | CPUBreakpoint *bp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 317 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 318 | bp = g_malloc(sizeof(*bp)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 319 | |
| 320 | bp->pc = pc; |
| 321 | bp->flags = flags; |
| 322 | |
| 323 | /* keep all GDB-injected breakpoints in front */ |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 324 | if (flags & BP_GDB) { |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 325 | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 326 | } else { |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 327 | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 328 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 329 | |
| 330 | breakpoint_invalidate(env, pc); |
| 331 | |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 332 | if (breakpoint) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 333 | *breakpoint = bp; |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 334 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 335 | return 0; |
| 336 | #else |
| 337 | return -ENOSYS; |
| 338 | #endif |
| 339 | } |
| 340 | |
| 341 | /* Remove a specific breakpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 342 | int cpu_breakpoint_remove(CPUArchState *env, target_ulong pc, int flags) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 343 | { |
| 344 | #if defined(TARGET_HAS_ICE) |
| 345 | CPUBreakpoint *bp; |
| 346 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 347 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 348 | if (bp->pc == pc && bp->flags == flags) { |
| 349 | cpu_breakpoint_remove_by_ref(env, bp); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 350 | return 0; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 351 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 352 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 353 | return -ENOENT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 354 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 355 | return -ENOSYS; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 356 | #endif |
| 357 | } |
| 358 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 359 | /* Remove a specific breakpoint by reference. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 360 | void cpu_breakpoint_remove_by_ref(CPUArchState *env, CPUBreakpoint *breakpoint) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 361 | { |
| 362 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 363 | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 364 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 365 | breakpoint_invalidate(env, breakpoint->pc); |
| 366 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 367 | g_free(breakpoint); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 368 | #endif |
| 369 | } |
| 370 | |
| 371 | /* Remove all matching breakpoints. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 372 | void cpu_breakpoint_remove_all(CPUArchState *env, int mask) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 373 | { |
| 374 | #if defined(TARGET_HAS_ICE) |
| 375 | CPUBreakpoint *bp, *next; |
| 376 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 377 | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 378 | if (bp->flags & mask) |
| 379 | cpu_breakpoint_remove_by_ref(env, bp); |
| 380 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 381 | #endif |
| 382 | } |
| 383 | |
| 384 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
| 385 | CPU loop after each instruction */ |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 386 | void cpu_single_step(CPUOldState *env, int enabled) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 387 | { |
| 388 | #if defined(TARGET_HAS_ICE) |
| 389 | if (env->singlestep_enabled != enabled) { |
| 390 | env->singlestep_enabled = enabled; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 391 | if (kvm_enabled()) |
| 392 | kvm_update_guest_debug(env, 0); |
| 393 | else { |
| 394 | /* must flush all the translated code to avoid inconsistencies */ |
| 395 | /* XXX: only flush what is necessary */ |
| 396 | tb_flush(env); |
| 397 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 398 | } |
| 399 | #endif |
| 400 | } |
| 401 | |
| 402 | /* enable or disable low levels log */ |
| 403 | void cpu_set_log(int log_flags) |
| 404 | { |
| 405 | loglevel = log_flags; |
| 406 | if (loglevel && !logfile) { |
| 407 | logfile = fopen(logfilename, log_append ? "a" : "w"); |
| 408 | if (!logfile) { |
| 409 | perror(logfilename); |
Iliyan Malchev | 4a2c9dd | 2012-04-02 08:20:56 -0700 | [diff] [blame] | 410 | exit(1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 411 | } |
| 412 | #if !defined(CONFIG_SOFTMMU) |
| 413 | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */ |
| 414 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 415 | static char logfile_buf[4096]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 416 | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf)); |
| 417 | } |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 418 | #elif !defined(_WIN32) |
| 419 | /* Win32 doesn't support line-buffering and requires size >= 2 */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 420 | setvbuf(logfile, NULL, _IOLBF, 0); |
| 421 | #endif |
| 422 | log_append = 1; |
| 423 | } |
| 424 | if (!loglevel && logfile) { |
| 425 | fclose(logfile); |
| 426 | logfile = NULL; |
| 427 | } |
| 428 | } |
| 429 | |
| 430 | void cpu_set_log_filename(const char *filename) |
| 431 | { |
| 432 | logfilename = strdup(filename); |
| 433 | if (logfile) { |
| 434 | fclose(logfile); |
| 435 | logfile = NULL; |
| 436 | } |
| 437 | cpu_set_log(loglevel); |
| 438 | } |
| 439 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 440 | static void cpu_unlink_tb(CPUOldState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 441 | { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 442 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the |
| 443 | problem and hope the cpu will stop of its own accord. For userspace |
| 444 | emulation this often isn't actually as bad as it sounds. Often |
| 445 | signals are used primarily to interrupt blocking syscalls. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 446 | TranslationBlock *tb; |
| 447 | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED; |
| 448 | |
David 'Digit' Turner | 795bb19 | 2011-05-09 15:20:22 +0200 | [diff] [blame] | 449 | spin_lock(&interrupt_lock); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 450 | tb = env->current_tb; |
| 451 | /* if the cpu is currently executing code, we must unlink it and |
| 452 | all the potentially executing TB */ |
David 'Digit' Turner | 795bb19 | 2011-05-09 15:20:22 +0200 | [diff] [blame] | 453 | if (tb) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 454 | env->current_tb = NULL; |
| 455 | tb_reset_jump_recursive(tb); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 456 | } |
David 'Digit' Turner | 795bb19 | 2011-05-09 15:20:22 +0200 | [diff] [blame] | 457 | spin_unlock(&interrupt_lock); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 458 | } |
| 459 | |
| 460 | /* mask must never be zero, except for A20 change call */ |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 461 | void cpu_interrupt(CPUOldState *env, int mask) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 462 | { |
| 463 | int old_mask; |
| 464 | |
| 465 | old_mask = env->interrupt_request; |
| 466 | env->interrupt_request |= mask; |
| 467 | |
| 468 | #ifndef CONFIG_USER_ONLY |
| 469 | /* |
| 470 | * If called from iothread context, wake the target cpu in |
| 471 | * case its halted. |
| 472 | */ |
| 473 | if (!qemu_cpu_self(env)) { |
| 474 | qemu_cpu_kick(env); |
| 475 | return; |
| 476 | } |
| 477 | #endif |
| 478 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 479 | if (use_icount) { |
| 480 | env->icount_decr.u16.high = 0xffff; |
| 481 | #ifndef CONFIG_USER_ONLY |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 482 | if (!can_do_io(env) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 483 | && (mask & ~old_mask) != 0) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 484 | cpu_abort(env, "Raised interrupt while not in I/O function"); |
| 485 | } |
| 486 | #endif |
| 487 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 488 | cpu_unlink_tb(env); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 489 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 490 | } |
| 491 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 492 | void cpu_reset_interrupt(CPUOldState *env, int mask) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 493 | { |
| 494 | env->interrupt_request &= ~mask; |
| 495 | } |
| 496 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 497 | void cpu_exit(CPUOldState *env) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 498 | { |
| 499 | env->exit_request = 1; |
| 500 | cpu_unlink_tb(env); |
| 501 | } |
| 502 | |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 503 | void cpu_abort(CPUArchState *env, const char *fmt, ...) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 504 | { |
| 505 | va_list ap; |
| 506 | va_list ap2; |
| 507 | |
| 508 | va_start(ap, fmt); |
| 509 | va_copy(ap2, ap); |
| 510 | fprintf(stderr, "qemu: fatal: "); |
| 511 | vfprintf(stderr, fmt, ap); |
| 512 | fprintf(stderr, "\n"); |
| 513 | #ifdef TARGET_I386 |
| 514 | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
| 515 | #else |
| 516 | cpu_dump_state(env, stderr, fprintf, 0); |
| 517 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 518 | if (qemu_log_enabled()) { |
| 519 | qemu_log("qemu: fatal: "); |
| 520 | qemu_log_vprintf(fmt, ap2); |
| 521 | qemu_log("\n"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 522 | #ifdef TARGET_I386 |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 523 | log_cpu_state(env, X86_DUMP_FPU | X86_DUMP_CCOP); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 524 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 525 | log_cpu_state(env, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 526 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 527 | qemu_log_flush(); |
| 528 | qemu_log_close(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 529 | } |
| 530 | va_end(ap2); |
| 531 | va_end(ap); |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 532 | #if defined(CONFIG_USER_ONLY) |
| 533 | { |
| 534 | struct sigaction act; |
| 535 | sigfillset(&act.sa_mask); |
| 536 | act.sa_handler = SIG_DFL; |
| 537 | sigaction(SIGABRT, &act, NULL); |
| 538 | } |
| 539 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 540 | abort(); |
| 541 | } |
| 542 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 543 | CPUArchState *cpu_copy(CPUOldState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 544 | { |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 545 | CPUArchState *new_env = cpu_init(env->cpu_model_str); |
| 546 | CPUArchState *next_cpu = new_env->next_cpu; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 547 | int cpu_index = new_env->cpu_index; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 548 | #if defined(TARGET_HAS_ICE) |
| 549 | CPUBreakpoint *bp; |
| 550 | CPUWatchpoint *wp; |
| 551 | #endif |
| 552 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 553 | memcpy(new_env, env, sizeof(CPUOldState)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 554 | |
| 555 | /* Preserve chaining and index. */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 556 | new_env->next_cpu = next_cpu; |
| 557 | new_env->cpu_index = cpu_index; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 558 | |
| 559 | /* Clone all break/watchpoints. |
| 560 | Note: Once we support ptrace with hw-debug register access, make sure |
| 561 | BP_CPU break/watchpoints are handled correctly on clone. */ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 562 | QTAILQ_INIT(&env->breakpoints); |
| 563 | QTAILQ_INIT(&env->watchpoints); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 564 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 565 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 566 | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL); |
| 567 | } |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 568 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 569 | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, |
| 570 | wp->flags, NULL); |
| 571 | } |
| 572 | #endif |
| 573 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 574 | return new_env; |
| 575 | } |
| 576 | |
| 577 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 578 | static RAMBlock *qemu_get_ram_block(ram_addr_t addr) |
| 579 | { |
| 580 | RAMBlock *block; |
| 581 | |
| 582 | /* The list is protected by the iothread lock here. */ |
| 583 | block = ram_list.mru_block; |
| 584 | if (block && addr - block->offset < block->length) { |
| 585 | goto found; |
| 586 | } |
| 587 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 588 | if (addr - block->offset < block->length) { |
| 589 | goto found; |
| 590 | } |
| 591 | } |
| 592 | |
| 593 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 594 | abort(); |
| 595 | |
| 596 | found: |
| 597 | ram_list.mru_block = block; |
| 598 | return block; |
| 599 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 600 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 601 | /* Note: start and end must be within the same ram block. */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 602 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
| 603 | int dirty_flags) |
| 604 | { |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 605 | CPUOldState *env; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 606 | unsigned long length, start1; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 607 | int i; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 608 | |
| 609 | start &= TARGET_PAGE_MASK; |
| 610 | end = TARGET_PAGE_ALIGN(end); |
| 611 | |
| 612 | length = end - start; |
| 613 | if (length == 0) |
| 614 | return; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 615 | cpu_physical_memory_mask_dirty_range(start, length, dirty_flags); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 616 | |
| 617 | /* we modify the TLB cache so that the dirty bit will be set again |
| 618 | when accessing the range */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 619 | start1 = (unsigned long)qemu_safe_ram_ptr(start); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 620 | /* Chek that we don't span multiple blocks - this breaks the |
| 621 | address comparisons below. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 622 | if ((unsigned long)qemu_safe_ram_ptr(end - 1) - start1 |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 623 | != (end - 1) - start) { |
| 624 | abort(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 625 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 626 | |
| 627 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 628 | int mmu_idx; |
| 629 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
| 630 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 631 | tlb_reset_dirty_range(&env->tlb_table[mmu_idx][i], |
| 632 | start1, length); |
| 633 | } |
| 634 | } |
| 635 | } |
| 636 | |
| 637 | int cpu_physical_memory_set_dirty_tracking(int enable) |
| 638 | { |
| 639 | in_migration = enable; |
| 640 | if (kvm_enabled()) { |
| 641 | return kvm_set_migration_log(enable); |
| 642 | } |
| 643 | return 0; |
| 644 | } |
| 645 | |
| 646 | int cpu_physical_memory_get_dirty_tracking(void) |
| 647 | { |
| 648 | return in_migration; |
| 649 | } |
| 650 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 651 | int cpu_physical_sync_dirty_bitmap(hwaddr start_addr, |
| 652 | hwaddr end_addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 653 | { |
| 654 | int ret = 0; |
| 655 | |
| 656 | if (kvm_enabled()) |
| 657 | ret = kvm_physical_sync_dirty_bitmap(start_addr, end_addr); |
| 658 | return ret; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 659 | } |
| 660 | |
| 661 | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
| 662 | { |
| 663 | ram_addr_t ram_addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 664 | void *p; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 665 | |
| 666 | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 667 | p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) |
| 668 | + tlb_entry->addend); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 669 | ram_addr = qemu_ram_addr_from_host_nofail(p); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 670 | if (!cpu_physical_memory_is_dirty(ram_addr)) { |
| 671 | tlb_entry->addr_write |= TLB_NOTDIRTY; |
| 672 | } |
| 673 | } |
| 674 | } |
| 675 | |
| 676 | /* update the TLB according to the current state of the dirty bits */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 677 | void cpu_tlb_update_dirty(CPUArchState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 678 | { |
| 679 | int i; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 680 | int mmu_idx; |
| 681 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
| 682 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 683 | tlb_update_dirty(&env->tlb_table[mmu_idx][i]); |
| 684 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 685 | } |
| 686 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 687 | |
| 688 | #else |
| 689 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 690 | void tlb_flush(CPUArchState *env, int flush_global) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 691 | { |
| 692 | } |
| 693 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 694 | void tlb_flush_page(CPUArchState *env, target_ulong addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 695 | { |
| 696 | } |
| 697 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 698 | int tlb_set_page_exec(CPUArchState *env, target_ulong vaddr, |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 699 | hwaddr paddr, int prot, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 700 | int mmu_idx, int is_softmmu) |
| 701 | { |
| 702 | return 0; |
| 703 | } |
| 704 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 705 | /* |
| 706 | * Walks guest process memory "regions" one by one |
| 707 | * and calls callback function 'fn' for each region. |
| 708 | */ |
| 709 | int walk_memory_regions(void *priv, |
| 710 | int (*fn)(void *, unsigned long, unsigned long, unsigned long)) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 711 | { |
| 712 | unsigned long start, end; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 713 | PageDesc *p = NULL; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 714 | int i, j, prot, prot1; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 715 | int rc = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 716 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 717 | start = end = -1; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 718 | prot = 0; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 719 | |
| 720 | for (i = 0; i <= L1_SIZE; i++) { |
| 721 | p = (i < L1_SIZE) ? l1_map[i] : NULL; |
| 722 | for (j = 0; j < L2_SIZE; j++) { |
| 723 | prot1 = (p == NULL) ? 0 : p[j].flags; |
| 724 | /* |
| 725 | * "region" is one continuous chunk of memory |
| 726 | * that has same protection flags set. |
| 727 | */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 728 | if (prot1 != prot) { |
| 729 | end = (i << (32 - L1_BITS)) | (j << TARGET_PAGE_BITS); |
| 730 | if (start != -1) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 731 | rc = (*fn)(priv, start, end, prot); |
| 732 | /* callback can stop iteration by returning != 0 */ |
| 733 | if (rc != 0) |
| 734 | return (rc); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 735 | } |
| 736 | if (prot1 != 0) |
| 737 | start = end; |
| 738 | else |
| 739 | start = -1; |
| 740 | prot = prot1; |
| 741 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 742 | if (p == NULL) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 743 | break; |
| 744 | } |
| 745 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 746 | return (rc); |
| 747 | } |
| 748 | |
| 749 | static int dump_region(void *priv, unsigned long start, |
| 750 | unsigned long end, unsigned long prot) |
| 751 | { |
| 752 | FILE *f = (FILE *)priv; |
| 753 | |
| 754 | (void) fprintf(f, "%08lx-%08lx %08lx %c%c%c\n", |
| 755 | start, end, end - start, |
| 756 | ((prot & PAGE_READ) ? 'r' : '-'), |
| 757 | ((prot & PAGE_WRITE) ? 'w' : '-'), |
| 758 | ((prot & PAGE_EXEC) ? 'x' : '-')); |
| 759 | |
| 760 | return (0); |
| 761 | } |
| 762 | |
| 763 | /* dump memory mappings */ |
| 764 | void page_dump(FILE *f) |
| 765 | { |
| 766 | (void) fprintf(f, "%-8s %-8s %-8s %s\n", |
| 767 | "start", "end", "size", "prot"); |
| 768 | walk_memory_regions(f, dump_region); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 769 | } |
| 770 | |
| 771 | int page_get_flags(target_ulong address) |
| 772 | { |
| 773 | PageDesc *p; |
| 774 | |
| 775 | p = page_find(address >> TARGET_PAGE_BITS); |
| 776 | if (!p) |
| 777 | return 0; |
| 778 | return p->flags; |
| 779 | } |
| 780 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 781 | /* Modify the flags of a page and invalidate the code if necessary. |
| 782 | The flag PAGE_WRITE_ORG is positioned automatically depending |
| 783 | on PAGE_WRITE. The mmap_lock should already be held. */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 784 | void page_set_flags(target_ulong start, target_ulong end, int flags) |
| 785 | { |
| 786 | PageDesc *p; |
| 787 | target_ulong addr; |
| 788 | |
| 789 | /* mmap_lock should already be held. */ |
| 790 | start = start & TARGET_PAGE_MASK; |
| 791 | end = TARGET_PAGE_ALIGN(end); |
| 792 | if (flags & PAGE_WRITE) |
| 793 | flags |= PAGE_WRITE_ORG; |
| 794 | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) { |
| 795 | p = page_find_alloc(addr >> TARGET_PAGE_BITS); |
| 796 | /* We may be called for host regions that are outside guest |
| 797 | address space. */ |
| 798 | if (!p) |
| 799 | return; |
| 800 | /* if the write protection is set, then we invalidate the code |
| 801 | inside */ |
| 802 | if (!(p->flags & PAGE_WRITE) && |
| 803 | (flags & PAGE_WRITE) && |
| 804 | p->first_tb) { |
| 805 | tb_invalidate_phys_page(addr, 0, NULL); |
| 806 | } |
| 807 | p->flags = flags; |
| 808 | } |
| 809 | } |
| 810 | |
| 811 | int page_check_range(target_ulong start, target_ulong len, int flags) |
| 812 | { |
| 813 | PageDesc *p; |
| 814 | target_ulong end; |
| 815 | target_ulong addr; |
| 816 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 817 | if (start + len < start) |
| 818 | /* we've wrapped around */ |
| 819 | return -1; |
| 820 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 821 | end = TARGET_PAGE_ALIGN(start+len); /* must do before we loose bits in the next step */ |
| 822 | start = start & TARGET_PAGE_MASK; |
| 823 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 824 | for(addr = start; addr < end; addr += TARGET_PAGE_SIZE) { |
| 825 | p = page_find(addr >> TARGET_PAGE_BITS); |
| 826 | if( !p ) |
| 827 | return -1; |
| 828 | if( !(p->flags & PAGE_VALID) ) |
| 829 | return -1; |
| 830 | |
| 831 | if ((flags & PAGE_READ) && !(p->flags & PAGE_READ)) |
| 832 | return -1; |
| 833 | if (flags & PAGE_WRITE) { |
| 834 | if (!(p->flags & PAGE_WRITE_ORG)) |
| 835 | return -1; |
| 836 | /* unprotect the page if it was put read-only because it |
| 837 | contains translated code */ |
| 838 | if (!(p->flags & PAGE_WRITE)) { |
| 839 | if (!page_unprotect(addr, 0, NULL)) |
| 840 | return -1; |
| 841 | } |
| 842 | return 0; |
| 843 | } |
| 844 | } |
| 845 | return 0; |
| 846 | } |
| 847 | |
| 848 | /* called from signal handler: invalidate the code and unprotect the |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 849 | page. Return TRUE if the fault was successfully handled. */ |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 850 | int page_unprotect(target_ulong address, uintptr_t pc, void *puc) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 851 | { |
| 852 | unsigned int page_index, prot, pindex; |
| 853 | PageDesc *p, *p1; |
| 854 | target_ulong host_start, host_end, addr; |
| 855 | |
| 856 | /* Technically this isn't safe inside a signal handler. However we |
| 857 | know this only ever happens in a synchronous SEGV handler, so in |
| 858 | practice it seems to be ok. */ |
| 859 | mmap_lock(); |
| 860 | |
| 861 | host_start = address & qemu_host_page_mask; |
| 862 | page_index = host_start >> TARGET_PAGE_BITS; |
| 863 | p1 = page_find(page_index); |
| 864 | if (!p1) { |
| 865 | mmap_unlock(); |
| 866 | return 0; |
| 867 | } |
| 868 | host_end = host_start + qemu_host_page_size; |
| 869 | p = p1; |
| 870 | prot = 0; |
| 871 | for(addr = host_start;addr < host_end; addr += TARGET_PAGE_SIZE) { |
| 872 | prot |= p->flags; |
| 873 | p++; |
| 874 | } |
| 875 | /* if the page was really writable, then we change its |
| 876 | protection back to writable */ |
| 877 | if (prot & PAGE_WRITE_ORG) { |
| 878 | pindex = (address - host_start) >> TARGET_PAGE_BITS; |
| 879 | if (!(p1[pindex].flags & PAGE_WRITE)) { |
| 880 | mprotect((void *)g2h(host_start), qemu_host_page_size, |
| 881 | (prot & PAGE_BITS) | PAGE_WRITE); |
| 882 | p1[pindex].flags |= PAGE_WRITE; |
| 883 | /* and since the content will be modified, we must invalidate |
| 884 | the corresponding translated code. */ |
| 885 | tb_invalidate_phys_page(address, pc, puc); |
| 886 | #ifdef DEBUG_TB_CHECK |
| 887 | tb_invalidate_check(address); |
| 888 | #endif |
| 889 | mmap_unlock(); |
| 890 | return 1; |
| 891 | } |
| 892 | } |
| 893 | mmap_unlock(); |
| 894 | return 0; |
| 895 | } |
| 896 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 897 | static inline void tlb_set_dirty(CPUOldState *env, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 898 | unsigned long addr, target_ulong vaddr) |
| 899 | { |
| 900 | } |
| 901 | #endif /* defined(CONFIG_USER_ONLY) */ |
| 902 | |
| 903 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 904 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 905 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 906 | ram_addr_t memory, ram_addr_t region_offset); |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 907 | static void *subpage_init (hwaddr base, ram_addr_t *phys, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 908 | ram_addr_t orig_memory, ram_addr_t region_offset); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 909 | |
| 910 | static void *(*phys_mem_alloc)(size_t size) = qemu_anon_ram_alloc; |
| 911 | |
| 912 | /* |
| 913 | * Set a custom physical guest memory alloator. |
| 914 | * Accelerators with unusual needs may need this. Hopefully, we can |
| 915 | * get rid of it eventually. |
| 916 | */ |
| 917 | void phys_mem_set_alloc(void *(*alloc)(size_t)) |
| 918 | { |
| 919 | phys_mem_alloc = alloc; |
| 920 | } |
| 921 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 922 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \ |
| 923 | need_subpage) \ |
| 924 | do { \ |
| 925 | if (addr > start_addr) \ |
| 926 | start_addr2 = 0; \ |
| 927 | else { \ |
| 928 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
| 929 | if (start_addr2 > 0) \ |
| 930 | need_subpage = 1; \ |
| 931 | } \ |
| 932 | \ |
| 933 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \ |
| 934 | end_addr2 = TARGET_PAGE_SIZE - 1; \ |
| 935 | else { \ |
| 936 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \ |
| 937 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
| 938 | need_subpage = 1; \ |
| 939 | } \ |
| 940 | } while (0) |
| 941 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 942 | /* register physical memory. |
| 943 | For RAM, 'size' must be a multiple of the target page size. |
| 944 | If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 945 | io memory page. The address used when calling the IO function is |
| 946 | the offset from the start of the region, plus region_offset. Both |
| 947 | start_addr and region_offset are rounded down to a page boundary |
| 948 | before calculating this offset. This should not be a problem unless |
| 949 | the low bits of start_addr and region_offset differ. */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 950 | void cpu_register_physical_memory_log(hwaddr start_addr, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 951 | ram_addr_t size, |
| 952 | ram_addr_t phys_offset, |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 953 | ram_addr_t region_offset, |
| 954 | bool log_dirty) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 955 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 956 | hwaddr addr, end_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 957 | PhysPageDesc *p; |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 958 | CPUOldState *env; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 959 | ram_addr_t orig_size = size; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 960 | subpage_t *subpage; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 961 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 962 | if (kvm_enabled()) |
| 963 | kvm_set_phys_mem(start_addr, size, phys_offset); |
Jun Nakajima | a381ef0 | 2011-12-17 19:13:25 -0800 | [diff] [blame] | 964 | #ifdef CONFIG_HAX |
| 965 | if (hax_enabled()) |
| 966 | hax_set_phys_mem(start_addr, size, phys_offset); |
| 967 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 968 | |
| 969 | if (phys_offset == IO_MEM_UNASSIGNED) { |
| 970 | region_offset = start_addr; |
| 971 | } |
| 972 | region_offset &= TARGET_PAGE_MASK; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 973 | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 974 | end_addr = start_addr + (hwaddr)size; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 975 | |
| 976 | addr = start_addr; |
| 977 | do { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 978 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 979 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) { |
| 980 | ram_addr_t orig_memory = p->phys_offset; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 981 | hwaddr start_addr2, end_addr2; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 982 | int need_subpage = 0; |
| 983 | |
| 984 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
| 985 | need_subpage); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 986 | if (need_subpage) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 987 | if (!(orig_memory & IO_MEM_SUBPAGE)) { |
| 988 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 989 | &p->phys_offset, orig_memory, |
| 990 | p->region_offset); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 991 | } else { |
| 992 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
| 993 | >> IO_MEM_SHIFT]; |
| 994 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 995 | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
| 996 | region_offset); |
| 997 | p->region_offset = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 998 | } else { |
| 999 | p->phys_offset = phys_offset; |
| 1000 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
| 1001 | (phys_offset & IO_MEM_ROMD)) |
| 1002 | phys_offset += TARGET_PAGE_SIZE; |
| 1003 | } |
| 1004 | } else { |
| 1005 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); |
| 1006 | p->phys_offset = phys_offset; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1007 | p->region_offset = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1008 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1009 | (phys_offset & IO_MEM_ROMD)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1010 | phys_offset += TARGET_PAGE_SIZE; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1011 | } else { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1012 | hwaddr start_addr2, end_addr2; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1013 | int need_subpage = 0; |
| 1014 | |
| 1015 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
| 1016 | end_addr2, need_subpage); |
| 1017 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1018 | if (need_subpage) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1019 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1020 | &p->phys_offset, IO_MEM_UNASSIGNED, |
| 1021 | addr & TARGET_PAGE_MASK); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1022 | subpage_register(subpage, start_addr2, end_addr2, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1023 | phys_offset, region_offset); |
| 1024 | p->region_offset = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1025 | } |
| 1026 | } |
| 1027 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1028 | region_offset += TARGET_PAGE_SIZE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1029 | addr += TARGET_PAGE_SIZE; |
| 1030 | } while (addr != end_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1031 | |
| 1032 | /* since each CPU stores ram addresses in its TLB cache, we must |
| 1033 | reset the modified entries */ |
| 1034 | /* XXX: slow ! */ |
| 1035 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 1036 | tlb_flush(env, 1); |
| 1037 | } |
| 1038 | } |
| 1039 | |
| 1040 | /* XXX: temporary until new memory mapping API */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1041 | ram_addr_t cpu_get_physical_page_desc(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1042 | { |
| 1043 | PhysPageDesc *p; |
| 1044 | |
| 1045 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 1046 | if (!p) |
| 1047 | return IO_MEM_UNASSIGNED; |
| 1048 | return p->phys_offset; |
| 1049 | } |
| 1050 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1051 | void qemu_register_coalesced_mmio(hwaddr addr, ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1052 | { |
| 1053 | if (kvm_enabled()) |
| 1054 | kvm_coalesce_mmio_region(addr, size); |
| 1055 | } |
| 1056 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1057 | void qemu_unregister_coalesced_mmio(hwaddr addr, ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1058 | { |
| 1059 | if (kvm_enabled()) |
| 1060 | kvm_uncoalesce_mmio_region(addr, size); |
| 1061 | } |
| 1062 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1063 | void qemu_mutex_lock_ramlist(void) |
| 1064 | { |
| 1065 | qemu_mutex_lock(&ram_list.mutex); |
| 1066 | } |
| 1067 | |
| 1068 | void qemu_mutex_unlock_ramlist(void) |
| 1069 | { |
| 1070 | qemu_mutex_unlock(&ram_list.mutex); |
| 1071 | } |
| 1072 | |
| 1073 | #if defined(__linux__) && !defined(CONFIG_ANDROID) |
| 1074 | |
| 1075 | #include <sys/vfs.h> |
| 1076 | |
| 1077 | #define HUGETLBFS_MAGIC 0x958458f6 |
| 1078 | |
| 1079 | static long gethugepagesize(const char *path) |
| 1080 | { |
| 1081 | struct statfs fs; |
| 1082 | int ret; |
| 1083 | |
| 1084 | do { |
| 1085 | ret = statfs(path, &fs); |
| 1086 | } while (ret != 0 && errno == EINTR); |
| 1087 | |
| 1088 | if (ret != 0) { |
| 1089 | perror(path); |
| 1090 | return 0; |
| 1091 | } |
| 1092 | |
| 1093 | if (fs.f_type != HUGETLBFS_MAGIC) |
| 1094 | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); |
| 1095 | |
| 1096 | return fs.f_bsize; |
| 1097 | } |
| 1098 | |
| 1099 | static sigjmp_buf sigjump; |
| 1100 | |
| 1101 | static void sigbus_handler(int signal) |
| 1102 | { |
| 1103 | siglongjmp(sigjump, 1); |
| 1104 | } |
| 1105 | |
| 1106 | static void *file_ram_alloc(RAMBlock *block, |
| 1107 | ram_addr_t memory, |
| 1108 | const char *path) |
| 1109 | { |
| 1110 | char *filename; |
| 1111 | char *sanitized_name; |
| 1112 | char *c; |
| 1113 | void *area; |
| 1114 | int fd; |
| 1115 | unsigned long hpagesize; |
| 1116 | |
| 1117 | hpagesize = gethugepagesize(path); |
| 1118 | if (!hpagesize) { |
| 1119 | return NULL; |
| 1120 | } |
| 1121 | |
| 1122 | if (memory < hpagesize) { |
| 1123 | return NULL; |
| 1124 | } |
| 1125 | |
| 1126 | if (kvm_enabled() && !kvm_has_sync_mmu()) { |
| 1127 | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); |
| 1128 | return NULL; |
| 1129 | } |
| 1130 | |
| 1131 | /* Make name safe to use with mkstemp by replacing '/' with '_'. */ |
| 1132 | sanitized_name = g_strdup(block->mr->name); |
| 1133 | for (c = sanitized_name; *c != '\0'; c++) { |
| 1134 | if (*c == '/') |
| 1135 | *c = '_'; |
| 1136 | } |
| 1137 | |
| 1138 | filename = g_strdup_printf("%s/qemu_back_mem.%s.XXXXXX", path, |
| 1139 | sanitized_name); |
| 1140 | g_free(sanitized_name); |
| 1141 | |
| 1142 | fd = mkstemp(filename); |
| 1143 | if (fd < 0) { |
| 1144 | perror("unable to create backing store for hugepages"); |
| 1145 | g_free(filename); |
| 1146 | return NULL; |
| 1147 | } |
| 1148 | unlink(filename); |
| 1149 | g_free(filename); |
| 1150 | |
| 1151 | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
| 1152 | |
| 1153 | /* |
| 1154 | * ftruncate is not supported by hugetlbfs in older |
| 1155 | * hosts, so don't bother bailing out on errors. |
| 1156 | * If anything goes wrong with it under other filesystems, |
| 1157 | * mmap will fail. |
| 1158 | */ |
| 1159 | if (ftruncate(fd, memory)) |
| 1160 | perror("ftruncate"); |
| 1161 | |
| 1162 | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
| 1163 | if (area == MAP_FAILED) { |
| 1164 | perror("file_ram_alloc: can't mmap RAM pages"); |
| 1165 | close(fd); |
| 1166 | return (NULL); |
| 1167 | } |
| 1168 | |
| 1169 | if (mem_prealloc) { |
| 1170 | int ret, i; |
| 1171 | struct sigaction act, oldact; |
| 1172 | sigset_t set, oldset; |
| 1173 | |
| 1174 | memset(&act, 0, sizeof(act)); |
| 1175 | act.sa_handler = &sigbus_handler; |
| 1176 | act.sa_flags = 0; |
| 1177 | |
| 1178 | ret = sigaction(SIGBUS, &act, &oldact); |
| 1179 | if (ret) { |
| 1180 | perror("file_ram_alloc: failed to install signal handler"); |
| 1181 | exit(1); |
| 1182 | } |
| 1183 | |
| 1184 | /* unblock SIGBUS */ |
| 1185 | sigemptyset(&set); |
| 1186 | sigaddset(&set, SIGBUS); |
| 1187 | pthread_sigmask(SIG_UNBLOCK, &set, &oldset); |
| 1188 | |
| 1189 | if (sigsetjmp(sigjump, 1)) { |
| 1190 | fprintf(stderr, "file_ram_alloc: failed to preallocate pages\n"); |
| 1191 | exit(1); |
| 1192 | } |
| 1193 | |
| 1194 | /* MAP_POPULATE silently ignores failures */ |
| 1195 | for (i = 0; i < (memory/hpagesize)-1; i++) { |
| 1196 | memset(area + (hpagesize*i), 0, 1); |
| 1197 | } |
| 1198 | |
| 1199 | ret = sigaction(SIGBUS, &oldact, NULL); |
| 1200 | if (ret) { |
| 1201 | perror("file_ram_alloc: failed to reinstall signal handler"); |
| 1202 | exit(1); |
| 1203 | } |
| 1204 | |
| 1205 | pthread_sigmask(SIG_SETMASK, &oldset, NULL); |
| 1206 | } |
| 1207 | |
| 1208 | block->fd = fd; |
| 1209 | return area; |
| 1210 | } |
| 1211 | #else |
| 1212 | static void *file_ram_alloc(RAMBlock *block, |
| 1213 | ram_addr_t memory, |
| 1214 | const char *path) |
| 1215 | { |
| 1216 | fprintf(stderr, "-mem-path not supported on this host\n"); |
| 1217 | exit(1); |
| 1218 | } |
| 1219 | #endif |
| 1220 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1221 | static ram_addr_t find_ram_offset(ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1222 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1223 | RAMBlock *block, *next_block; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1224 | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1225 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1226 | assert(size != 0); /* it would hand out same offset multiple times */ |
| 1227 | |
| 1228 | if (QTAILQ_EMPTY(&ram_list.blocks)) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1229 | return 0; |
| 1230 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1231 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1232 | ram_addr_t end, next = RAM_ADDR_MAX; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1233 | |
| 1234 | end = block->offset + block->length; |
| 1235 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1236 | QTAILQ_FOREACH(next_block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1237 | if (next_block->offset >= end) { |
| 1238 | next = MIN(next, next_block->offset); |
| 1239 | } |
| 1240 | } |
| 1241 | if (next - end >= size && next - end < mingap) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1242 | offset = end; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1243 | mingap = next - end; |
| 1244 | } |
| 1245 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1246 | |
| 1247 | if (offset == RAM_ADDR_MAX) { |
| 1248 | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", |
| 1249 | (uint64_t)size); |
| 1250 | abort(); |
| 1251 | } |
| 1252 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1253 | return offset; |
| 1254 | } |
| 1255 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1256 | ram_addr_t last_ram_offset(void) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1257 | { |
| 1258 | RAMBlock *block; |
| 1259 | ram_addr_t last = 0; |
| 1260 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1261 | QTAILQ_FOREACH(block, &ram_list.blocks, next) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1262 | last = MAX(last, block->offset + block->length); |
| 1263 | |
| 1264 | return last; |
| 1265 | } |
| 1266 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1267 | static void qemu_ram_setup_dump(void *addr, ram_addr_t size) |
| 1268 | { |
| 1269 | #ifndef CONFIG_ANDROID |
| 1270 | int ret; |
| 1271 | |
| 1272 | /* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */ |
| 1273 | if (!qemu_opt_get_bool(qemu_get_machine_opts(), |
| 1274 | "dump-guest-core", true)) { |
| 1275 | ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP); |
| 1276 | if (ret) { |
| 1277 | perror("qemu_madvise"); |
| 1278 | fprintf(stderr, "madvise doesn't support MADV_DONTDUMP, " |
| 1279 | "but dump_guest_core=off specified\n"); |
| 1280 | } |
| 1281 | } |
| 1282 | #endif // !CONFIG_ANDROID |
| 1283 | } |
| 1284 | |
| 1285 | void qemu_ram_set_idstr(ram_addr_t addr, const char *name, DeviceState *dev) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1286 | { |
| 1287 | RAMBlock *new_block, *block; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1288 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1289 | new_block = NULL; |
| 1290 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1291 | if (block->offset == addr) { |
| 1292 | new_block = block; |
| 1293 | break; |
| 1294 | } |
| 1295 | } |
| 1296 | assert(new_block); |
| 1297 | assert(!new_block->idstr[0]); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1298 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1299 | if (dev) { |
| 1300 | char *id = qdev_get_dev_path(dev); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1301 | if (id) { |
| 1302 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1303 | g_free(id); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1304 | } |
| 1305 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1306 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); |
| 1307 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1308 | /* This assumes the iothread lock is taken here too. */ |
| 1309 | qemu_mutex_lock_ramlist(); |
| 1310 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1311 | if (block != new_block && !strcmp(block->idstr, new_block->idstr)) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1312 | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", |
| 1313 | new_block->idstr); |
| 1314 | abort(); |
| 1315 | } |
| 1316 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1317 | qemu_mutex_unlock_ramlist(); |
| 1318 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1319 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1320 | static int memory_try_enable_merging(void *addr, size_t len) |
| 1321 | { |
| 1322 | #ifndef CONFIG_ANDROID |
| 1323 | if (!qemu_opt_get_bool(qemu_get_machine_opts(), "mem-merge", true)) { |
| 1324 | /* disabled by the user */ |
| 1325 | return 0; |
| 1326 | } |
| 1327 | |
| 1328 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1329 | #else // CONFIG_ANDROID |
| 1330 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1331 | #endif // CONFIG_ANDROID |
| 1332 | } |
| 1333 | |
| 1334 | ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, |
| 1335 | ram_addr_t size, void *host) |
| 1336 | { |
| 1337 | RAMBlock *block, *new_block; |
| 1338 | |
| 1339 | size = TARGET_PAGE_ALIGN(size); |
| 1340 | new_block = g_malloc0(sizeof(*new_block)); |
| 1341 | new_block->fd = -1; |
| 1342 | |
| 1343 | /* This assumes the iothread lock is taken here too. */ |
| 1344 | qemu_mutex_lock_ramlist(); |
| 1345 | //new_block->mr = mr; |
| 1346 | new_block->offset = find_ram_offset(size); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1347 | if (host) { |
| 1348 | new_block->host = host; |
| 1349 | new_block->flags |= RAM_PREALLOC_MASK; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1350 | } else if (xen_enabled()) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1351 | if (mem_path) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1352 | fprintf(stderr, "-mem-path not supported with Xen\n"); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1353 | exit(1); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1354 | } |
| 1355 | //xen_ram_alloc(new_block->offset, size, mr); |
Jun Nakajima | a381ef0 | 2011-12-17 19:13:25 -0800 | [diff] [blame] | 1356 | #ifdef CONFIG_HAX |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1357 | } else if (hax_enabled()) { |
Jun Nakajima | a381ef0 | 2011-12-17 19:13:25 -0800 | [diff] [blame] | 1358 | /* |
| 1359 | * In HAX, qemu allocates the virtual address, and HAX kernel |
| 1360 | * module populates the region with physical memory. Currently |
| 1361 | * we don’t populate guest memory on demand, thus we should |
| 1362 | * make sure that sufficient amount of memory is available in |
| 1363 | * advance. |
| 1364 | */ |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1365 | int ret = hax_populate_ram( |
| 1366 | (uint64_t)(uintptr_t)new_block->host, |
| 1367 | (uint32_t)size); |
| 1368 | if (ret < 0) { |
| 1369 | fprintf(stderr, "Hax failed to populate ram\n"); |
| 1370 | exit(-1); |
Jun Nakajima | a381ef0 | 2011-12-17 19:13:25 -0800 | [diff] [blame] | 1371 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1372 | #endif // CONFIG_HAX |
| 1373 | } else { |
| 1374 | if (mem_path) { |
| 1375 | if (phys_mem_alloc != qemu_anon_ram_alloc) { |
| 1376 | /* |
| 1377 | * file_ram_alloc() needs to allocate just like |
| 1378 | * phys_mem_alloc, but we haven't bothered to provide |
| 1379 | * a hook there. |
| 1380 | */ |
| 1381 | fprintf(stderr, |
| 1382 | "-mem-path not supported with this accelerator\n"); |
| 1383 | exit(1); |
| 1384 | } |
| 1385 | new_block->host = file_ram_alloc(new_block, size, mem_path); |
| 1386 | } |
| 1387 | if (!new_block->host) { |
| 1388 | new_block->host = phys_mem_alloc(size); |
| 1389 | if (!new_block->host) { |
| 1390 | fprintf(stderr, "Cannot set up guest memory '%s': %s\n", |
| 1391 | name, strerror(errno)); |
| 1392 | exit(1); |
| 1393 | } |
| 1394 | memory_try_enable_merging(new_block->host, size); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1395 | } |
| 1396 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1397 | new_block->length = size; |
| 1398 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1399 | /* Keep the list sorted from biggest to smallest block. */ |
| 1400 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1401 | if (block->length < new_block->length) { |
| 1402 | break; |
| 1403 | } |
| 1404 | } |
| 1405 | if (block) { |
| 1406 | QTAILQ_INSERT_BEFORE(block, new_block, next); |
| 1407 | } else { |
| 1408 | QTAILQ_INSERT_TAIL(&ram_list.blocks, new_block, next); |
| 1409 | } |
| 1410 | ram_list.mru_block = NULL; |
| 1411 | |
| 1412 | ram_list.version++; |
| 1413 | qemu_mutex_unlock_ramlist(); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1414 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1415 | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1416 | last_ram_offset() >> TARGET_PAGE_BITS); |
| 1417 | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1418 | 0xff, size >> TARGET_PAGE_BITS); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1419 | //cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1420 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1421 | //qemu_ram_setup_dump(new_block->host, size); |
| 1422 | //qemu_madvise(new_block->host, size, QEMU_MADV_HUGEPAGE); |
| 1423 | //qemu_madvise(new_block->host, size, QEMU_MADV_DONTFORK); |
| 1424 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1425 | if (kvm_enabled()) |
| 1426 | kvm_setup_guest_memory(new_block->host, size); |
| 1427 | |
| 1428 | return new_block->offset; |
| 1429 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1430 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1431 | ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) |
| 1432 | { |
| 1433 | return qemu_ram_alloc_from_ptr(dev, name, size, NULL); |
| 1434 | } |
| 1435 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1436 | void qemu_ram_free_from_ptr(ram_addr_t addr) |
| 1437 | { |
| 1438 | RAMBlock *block; |
| 1439 | |
| 1440 | /* This assumes the iothread lock is taken here too. */ |
| 1441 | qemu_mutex_lock_ramlist(); |
| 1442 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1443 | if (addr == block->offset) { |
| 1444 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
| 1445 | ram_list.mru_block = NULL; |
| 1446 | ram_list.version++; |
| 1447 | g_free(block); |
| 1448 | break; |
| 1449 | } |
| 1450 | } |
| 1451 | qemu_mutex_unlock_ramlist(); |
| 1452 | } |
| 1453 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1454 | void qemu_ram_free(ram_addr_t addr) |
| 1455 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1456 | RAMBlock *block; |
| 1457 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1458 | /* This assumes the iothread lock is taken here too. */ |
| 1459 | qemu_mutex_lock_ramlist(); |
| 1460 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1461 | if (addr == block->offset) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1462 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
| 1463 | ram_list.mru_block = NULL; |
| 1464 | ram_list.version++; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1465 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1466 | ; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1467 | } else if (xen_enabled()) { |
| 1468 | //xen_invalidate_map_cache_entry(block->host); |
| 1469 | #ifndef _WIN32 |
| 1470 | } else if (block->fd >= 0) { |
| 1471 | munmap(block->host, block->length); |
| 1472 | close(block->fd); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1473 | #endif |
| 1474 | } else { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1475 | qemu_anon_ram_free(block->host, block->length); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1476 | } |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1477 | g_free(block); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1478 | break; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1479 | } |
| 1480 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1481 | qemu_mutex_unlock_ramlist(); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1482 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1483 | } |
| 1484 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1485 | #ifndef _WIN32 |
| 1486 | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) |
| 1487 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1488 | RAMBlock *block; |
| 1489 | ram_addr_t offset; |
| 1490 | int flags; |
| 1491 | void *area, *vaddr; |
| 1492 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1493 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1494 | offset = addr - block->offset; |
| 1495 | if (offset < block->length) { |
| 1496 | vaddr = block->host + offset; |
| 1497 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1498 | ; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1499 | } else if (xen_enabled()) { |
| 1500 | abort(); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1501 | } else { |
| 1502 | flags = MAP_FIXED; |
| 1503 | munmap(vaddr, length); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1504 | if (block->fd >= 0) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1505 | #ifdef MAP_POPULATE |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1506 | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : |
| 1507 | MAP_PRIVATE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1508 | #else |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1509 | flags |= MAP_PRIVATE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1510 | #endif |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1511 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1512 | flags, block->fd, offset); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1513 | } else { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1514 | /* |
| 1515 | * Remap needs to match alloc. Accelerators that |
| 1516 | * set phys_mem_alloc never remap. If they did, |
| 1517 | * we'd need a remap hook here. |
| 1518 | */ |
| 1519 | assert(phys_mem_alloc == qemu_anon_ram_alloc); |
| 1520 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1521 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
| 1522 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1523 | flags, -1, 0); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1524 | } |
| 1525 | if (area != vaddr) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1526 | fprintf(stderr, "Could not remap addr: " |
| 1527 | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1528 | length, addr); |
| 1529 | exit(1); |
| 1530 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1531 | memory_try_enable_merging(vaddr, length); |
| 1532 | qemu_ram_setup_dump(vaddr, length); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1533 | } |
| 1534 | return; |
| 1535 | } |
| 1536 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1537 | } |
| 1538 | #endif /* !_WIN32 */ |
| 1539 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1540 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
| 1541 | With the exception of the softmmu code in this file, this should |
| 1542 | only be used for local memory (e.g. video ram) that the device owns, |
| 1543 | and knows it isn't going to access beyond the end of the block. |
| 1544 | |
| 1545 | It should not be used for general purpose DMA. |
| 1546 | Use cpu_physical_memory_map/cpu_physical_memory_rw instead. |
| 1547 | */ |
| 1548 | void *qemu_get_ram_ptr(ram_addr_t addr) |
| 1549 | { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1550 | RAMBlock *block = qemu_get_ram_block(addr); |
| 1551 | #if 0 |
| 1552 | if (xen_enabled()) { |
| 1553 | /* We need to check if the requested address is in the RAM |
| 1554 | * because we don't want to map the entire memory in QEMU. |
| 1555 | * In that case just map until the end of the page. |
| 1556 | */ |
| 1557 | if (block->offset == 0) { |
| 1558 | return xen_map_cache(addr, 0, 0); |
| 1559 | } else if (block->host == NULL) { |
| 1560 | block->host = |
| 1561 | xen_map_cache(block->offset, block->length, 1); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1562 | } |
| 1563 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1564 | #endif |
| 1565 | return block->host + (addr - block->offset); |
| 1566 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1567 | |
| 1568 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
| 1569 | * Same as qemu_get_ram_ptr but avoid reordering ramblocks. |
| 1570 | */ |
| 1571 | void *qemu_safe_ram_ptr(ram_addr_t addr) |
| 1572 | { |
| 1573 | RAMBlock *block; |
| 1574 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1575 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1576 | if (addr - block->offset < block->length) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1577 | return block->host + (addr - block->offset); |
| 1578 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1579 | } |
| 1580 | |
| 1581 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1582 | abort(); |
| 1583 | |
| 1584 | return NULL; |
| 1585 | } |
| 1586 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1587 | /* Some of the softmmu routines need to translate from a host pointer |
| 1588 | (typically a TLB entry) back to a ram offset. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1589 | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
| 1590 | { |
| 1591 | RAMBlock *block; |
| 1592 | uint8_t *host = ptr; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1593 | #if 0 |
| 1594 | if (xen_enabled()) { |
| 1595 | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
| 1596 | return qemu_get_ram_block(*ram_addr)->mr; |
| 1597 | } |
| 1598 | #endif |
| 1599 | block = ram_list.mru_block; |
| 1600 | if (block && block->host && host - block->host < block->length) { |
| 1601 | goto found; |
| 1602 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1603 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1604 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1605 | /* This case append when the block is not mapped. */ |
| 1606 | if (block->host == NULL) { |
| 1607 | continue; |
| 1608 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1609 | if (host - block->host < block->length) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1610 | goto found; |
| 1611 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1612 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1613 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1614 | return -1; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1615 | |
| 1616 | found: |
| 1617 | *ram_addr = block->offset + (host - block->host); |
| 1618 | return 0; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1619 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1620 | |
| 1621 | /* Some of the softmmu routines need to translate from a host pointer |
| 1622 | (typically a TLB entry) back to a ram offset. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1623 | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1624 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1625 | ram_addr_t ram_addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1626 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1627 | if (qemu_ram_addr_from_host(ptr, &ram_addr)) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1628 | fprintf(stderr, "Bad ram pointer %p\n", ptr); |
| 1629 | abort(); |
| 1630 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1631 | return ram_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1632 | } |
| 1633 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1634 | static uint32_t unassigned_mem_readb(void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1635 | { |
| 1636 | #ifdef DEBUG_UNASSIGNED |
| 1637 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1638 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1639 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1640 | do_unassigned_access(addr, 0, 0, 0, 1); |
| 1641 | #endif |
| 1642 | return 0; |
| 1643 | } |
| 1644 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1645 | static uint32_t unassigned_mem_readw(void *opaque, hwaddr addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1646 | { |
| 1647 | #ifdef DEBUG_UNASSIGNED |
| 1648 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1649 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1650 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1651 | do_unassigned_access(addr, 0, 0, 0, 2); |
| 1652 | #endif |
| 1653 | return 0; |
| 1654 | } |
| 1655 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1656 | static uint32_t unassigned_mem_readl(void *opaque, hwaddr addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1657 | { |
| 1658 | #ifdef DEBUG_UNASSIGNED |
| 1659 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1660 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1661 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1662 | do_unassigned_access(addr, 0, 0, 0, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1663 | #endif |
| 1664 | return 0; |
| 1665 | } |
| 1666 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1667 | static void unassigned_mem_writeb(void *opaque, hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1668 | { |
| 1669 | #ifdef DEBUG_UNASSIGNED |
| 1670 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1671 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1672 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1673 | do_unassigned_access(addr, 1, 0, 0, 1); |
| 1674 | #endif |
| 1675 | } |
| 1676 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1677 | static void unassigned_mem_writew(void *opaque, hwaddr addr, uint32_t val) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1678 | { |
| 1679 | #ifdef DEBUG_UNASSIGNED |
| 1680 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1681 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1682 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1683 | do_unassigned_access(addr, 1, 0, 0, 2); |
| 1684 | #endif |
| 1685 | } |
| 1686 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1687 | static void unassigned_mem_writel(void *opaque, hwaddr addr, uint32_t val) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1688 | { |
| 1689 | #ifdef DEBUG_UNASSIGNED |
| 1690 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1691 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1692 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1693 | do_unassigned_access(addr, 1, 0, 0, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1694 | #endif |
| 1695 | } |
| 1696 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1697 | static CPUReadMemoryFunc * const unassigned_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1698 | unassigned_mem_readb, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1699 | unassigned_mem_readw, |
| 1700 | unassigned_mem_readl, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1701 | }; |
| 1702 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1703 | static CPUWriteMemoryFunc * const unassigned_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1704 | unassigned_mem_writeb, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1705 | unassigned_mem_writew, |
| 1706 | unassigned_mem_writel, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1707 | }; |
| 1708 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1709 | static void notdirty_mem_writeb(void *opaque, hwaddr ram_addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1710 | uint32_t val) |
| 1711 | { |
| 1712 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1713 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1714 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1715 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame^] | 1716 | tb_invalidate_phys_page_fast0(ram_addr, 1); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1717 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1718 | #endif |
| 1719 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1720 | stb_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1721 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1722 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1723 | /* we remove the notdirty callback only if the code has been |
| 1724 | flushed */ |
| 1725 | if (dirty_flags == 0xff) |
| 1726 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1727 | } |
| 1728 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1729 | static void notdirty_mem_writew(void *opaque, hwaddr ram_addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1730 | uint32_t val) |
| 1731 | { |
| 1732 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1733 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1734 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1735 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame^] | 1736 | tb_invalidate_phys_page_fast0(ram_addr, 2); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1737 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1738 | #endif |
| 1739 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1740 | stw_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1741 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1742 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1743 | /* we remove the notdirty callback only if the code has been |
| 1744 | flushed */ |
| 1745 | if (dirty_flags == 0xff) |
| 1746 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1747 | } |
| 1748 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1749 | static void notdirty_mem_writel(void *opaque, hwaddr ram_addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1750 | uint32_t val) |
| 1751 | { |
| 1752 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1753 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1754 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1755 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame^] | 1756 | tb_invalidate_phys_page_fast0(ram_addr, 4); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1757 | dirty_flags = cpu_physical_memory_get_dirty_flags(ram_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1758 | #endif |
| 1759 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1760 | stl_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1761 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1762 | cpu_physical_memory_set_dirty_flags(ram_addr, dirty_flags); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1763 | /* we remove the notdirty callback only if the code has been |
| 1764 | flushed */ |
| 1765 | if (dirty_flags == 0xff) |
| 1766 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1767 | } |
| 1768 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1769 | static CPUReadMemoryFunc * const error_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1770 | NULL, /* never used */ |
| 1771 | NULL, /* never used */ |
| 1772 | NULL, /* never used */ |
| 1773 | }; |
| 1774 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1775 | static CPUWriteMemoryFunc * const notdirty_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1776 | notdirty_mem_writeb, |
| 1777 | notdirty_mem_writew, |
| 1778 | notdirty_mem_writel, |
| 1779 | }; |
| 1780 | |
| 1781 | /* Generate a debug exception if a watchpoint has been hit. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1782 | static void check_watchpoint(int offset, int len_mask, int flags) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1783 | { |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1784 | CPUArchState *env = cpu_single_env; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1785 | target_ulong pc, cs_base; |
| 1786 | TranslationBlock *tb; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1787 | target_ulong vaddr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1788 | CPUWatchpoint *wp; |
| 1789 | int cpu_flags; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1790 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1791 | if (env->watchpoint_hit) { |
| 1792 | /* We re-entered the check after replacing the TB. Now raise |
| 1793 | * the debug interrupt so that is will trigger after the |
| 1794 | * current instruction. */ |
| 1795 | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
| 1796 | return; |
| 1797 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1798 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1799 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1800 | if ((vaddr == (wp->vaddr & len_mask) || |
| 1801 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
| 1802 | wp->flags |= BP_WATCHPOINT_HIT; |
| 1803 | if (!env->watchpoint_hit) { |
| 1804 | env->watchpoint_hit = wp; |
| 1805 | tb = tb_find_pc(env->mem_io_pc); |
| 1806 | if (!tb) { |
| 1807 | cpu_abort(env, "check_watchpoint: could not find TB for " |
| 1808 | "pc=%p", (void *)env->mem_io_pc); |
| 1809 | } |
David 'Digit' Turner | f645f7d | 2011-05-11 00:44:05 +0200 | [diff] [blame] | 1810 | cpu_restore_state(tb, env, env->mem_io_pc); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1811 | tb_phys_invalidate(tb, -1); |
| 1812 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { |
| 1813 | env->exception_index = EXCP_DEBUG; |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1814 | cpu_loop_exit(env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1815 | } else { |
| 1816 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
| 1817 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1818 | cpu_resume_from_signal(env, NULL); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1819 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1820 | } |
| 1821 | } else { |
| 1822 | wp->flags &= ~BP_WATCHPOINT_HIT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1823 | } |
| 1824 | } |
| 1825 | } |
| 1826 | |
| 1827 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
| 1828 | so these check for a hit then pass through to the normal out-of-line |
| 1829 | phys routines. */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1830 | static uint32_t watch_mem_readb(void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1831 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1832 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_READ); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1833 | return ldub_phys(addr); |
| 1834 | } |
| 1835 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1836 | static uint32_t watch_mem_readw(void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1837 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1838 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_READ); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1839 | return lduw_phys(addr); |
| 1840 | } |
| 1841 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1842 | static uint32_t watch_mem_readl(void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1843 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1844 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_READ); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1845 | return ldl_phys(addr); |
| 1846 | } |
| 1847 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1848 | static void watch_mem_writeb(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1849 | uint32_t val) |
| 1850 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1851 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x0, BP_MEM_WRITE); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1852 | stb_phys(addr, val); |
| 1853 | } |
| 1854 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1855 | static void watch_mem_writew(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1856 | uint32_t val) |
| 1857 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1858 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x1, BP_MEM_WRITE); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1859 | stw_phys(addr, val); |
| 1860 | } |
| 1861 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1862 | static void watch_mem_writel(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1863 | uint32_t val) |
| 1864 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1865 | check_watchpoint(addr & ~TARGET_PAGE_MASK, ~0x3, BP_MEM_WRITE); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1866 | stl_phys(addr, val); |
| 1867 | } |
| 1868 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1869 | static CPUReadMemoryFunc * const watch_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1870 | watch_mem_readb, |
| 1871 | watch_mem_readw, |
| 1872 | watch_mem_readl, |
| 1873 | }; |
| 1874 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1875 | static CPUWriteMemoryFunc * const watch_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1876 | watch_mem_writeb, |
| 1877 | watch_mem_writew, |
| 1878 | watch_mem_writel, |
| 1879 | }; |
| 1880 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1881 | static inline uint32_t subpage_readlen (subpage_t *mmio, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1882 | unsigned int len) |
| 1883 | { |
| 1884 | uint32_t ret; |
| 1885 | unsigned int idx; |
| 1886 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1887 | idx = SUBPAGE_IDX(addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1888 | #if defined(DEBUG_SUBPAGE) |
| 1889 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
| 1890 | mmio, len, addr, idx); |
| 1891 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1892 | ret = (**mmio->mem_read[idx][len])(mmio->opaque[idx][0][len], |
| 1893 | addr + mmio->region_offset[idx][0][len]); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1894 | |
| 1895 | return ret; |
| 1896 | } |
| 1897 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1898 | static inline void subpage_writelen (subpage_t *mmio, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1899 | uint32_t value, unsigned int len) |
| 1900 | { |
| 1901 | unsigned int idx; |
| 1902 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1903 | idx = SUBPAGE_IDX(addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1904 | #if defined(DEBUG_SUBPAGE) |
| 1905 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", __func__, |
| 1906 | mmio, len, addr, idx, value); |
| 1907 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1908 | (**mmio->mem_write[idx][len])(mmio->opaque[idx][1][len], |
| 1909 | addr + mmio->region_offset[idx][1][len], |
| 1910 | value); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1911 | } |
| 1912 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1913 | static uint32_t subpage_readb (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1914 | { |
| 1915 | #if defined(DEBUG_SUBPAGE) |
| 1916 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1917 | #endif |
| 1918 | |
| 1919 | return subpage_readlen(opaque, addr, 0); |
| 1920 | } |
| 1921 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1922 | static void subpage_writeb (void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1923 | uint32_t value) |
| 1924 | { |
| 1925 | #if defined(DEBUG_SUBPAGE) |
| 1926 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1927 | #endif |
| 1928 | subpage_writelen(opaque, addr, value, 0); |
| 1929 | } |
| 1930 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1931 | static uint32_t subpage_readw (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1932 | { |
| 1933 | #if defined(DEBUG_SUBPAGE) |
| 1934 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1935 | #endif |
| 1936 | |
| 1937 | return subpage_readlen(opaque, addr, 1); |
| 1938 | } |
| 1939 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1940 | static void subpage_writew (void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1941 | uint32_t value) |
| 1942 | { |
| 1943 | #if defined(DEBUG_SUBPAGE) |
| 1944 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1945 | #endif |
| 1946 | subpage_writelen(opaque, addr, value, 1); |
| 1947 | } |
| 1948 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1949 | static uint32_t subpage_readl (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1950 | { |
| 1951 | #if defined(DEBUG_SUBPAGE) |
| 1952 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1953 | #endif |
| 1954 | |
| 1955 | return subpage_readlen(opaque, addr, 2); |
| 1956 | } |
| 1957 | |
| 1958 | static void subpage_writel (void *opaque, |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1959 | hwaddr addr, uint32_t value) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1960 | { |
| 1961 | #if defined(DEBUG_SUBPAGE) |
| 1962 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1963 | #endif |
| 1964 | subpage_writelen(opaque, addr, value, 2); |
| 1965 | } |
| 1966 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1967 | static CPUReadMemoryFunc * const subpage_read[] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1968 | &subpage_readb, |
| 1969 | &subpage_readw, |
| 1970 | &subpage_readl, |
| 1971 | }; |
| 1972 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1973 | static CPUWriteMemoryFunc * const subpage_write[] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1974 | &subpage_writeb, |
| 1975 | &subpage_writew, |
| 1976 | &subpage_writel, |
| 1977 | }; |
| 1978 | |
| 1979 | static int subpage_register (subpage_t *mmio, uint32_t start, uint32_t end, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1980 | ram_addr_t memory, ram_addr_t region_offset) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1981 | { |
| 1982 | int idx, eidx; |
| 1983 | unsigned int i; |
| 1984 | |
| 1985 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) |
| 1986 | return -1; |
| 1987 | idx = SUBPAGE_IDX(start); |
| 1988 | eidx = SUBPAGE_IDX(end); |
| 1989 | #if defined(DEBUG_SUBPAGE) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1990 | printf("%s: %p start %08x end %08x idx %08x eidx %08x mem %ld\n", __func__, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1991 | mmio, start, end, idx, eidx, memory); |
| 1992 | #endif |
| 1993 | memory >>= IO_MEM_SHIFT; |
| 1994 | for (; idx <= eidx; idx++) { |
| 1995 | for (i = 0; i < 4; i++) { |
| 1996 | if (io_mem_read[memory][i]) { |
| 1997 | mmio->mem_read[idx][i] = &io_mem_read[memory][i]; |
| 1998 | mmio->opaque[idx][0][i] = io_mem_opaque[memory]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1999 | mmio->region_offset[idx][0][i] = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2000 | } |
| 2001 | if (io_mem_write[memory][i]) { |
| 2002 | mmio->mem_write[idx][i] = &io_mem_write[memory][i]; |
| 2003 | mmio->opaque[idx][1][i] = io_mem_opaque[memory]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2004 | mmio->region_offset[idx][1][i] = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2005 | } |
| 2006 | } |
| 2007 | } |
| 2008 | |
| 2009 | return 0; |
| 2010 | } |
| 2011 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2012 | static void *subpage_init (hwaddr base, ram_addr_t *phys, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2013 | ram_addr_t orig_memory, ram_addr_t region_offset) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2014 | { |
| 2015 | subpage_t *mmio; |
| 2016 | int subpage_memory; |
| 2017 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2018 | mmio = g_malloc0(sizeof(subpage_t)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2019 | |
| 2020 | mmio->base = base; |
| 2021 | subpage_memory = cpu_register_io_memory(subpage_read, subpage_write, mmio); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2022 | #if defined(DEBUG_SUBPAGE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2023 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
| 2024 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2025 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2026 | *phys = subpage_memory | IO_MEM_SUBPAGE; |
| 2027 | subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory, |
| 2028 | region_offset); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2029 | |
| 2030 | return mmio; |
| 2031 | } |
| 2032 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2033 | static int get_free_io_mem_idx(void) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2034 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2035 | int i; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2036 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2037 | for (i = 0; i<IO_MEM_NB_ENTRIES; i++) |
| 2038 | if (!io_mem_used[i]) { |
| 2039 | io_mem_used[i] = 1; |
| 2040 | return i; |
| 2041 | } |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2042 | fprintf(stderr, "RAN out out io_mem_idx, max %d !\n", IO_MEM_NB_ENTRIES); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2043 | return -1; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2044 | } |
| 2045 | |
| 2046 | /* mem_read and mem_write are arrays of functions containing the |
| 2047 | function to access byte (index 0), word (index 1) and dword (index |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2048 | 2). Functions can be omitted with a NULL function pointer. |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2049 | If io_index is non zero, the corresponding io zone is |
| 2050 | modified. If it is zero, a new io zone is allocated. The return |
| 2051 | value can be used with cpu_register_physical_memory(). (-1) is |
| 2052 | returned if error. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2053 | static int cpu_register_io_memory_fixed(int io_index, |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 2054 | CPUReadMemoryFunc * const *mem_read, |
| 2055 | CPUWriteMemoryFunc * const *mem_write, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2056 | void *opaque) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2057 | { |
| 2058 | int i, subwidth = 0; |
| 2059 | |
| 2060 | if (io_index <= 0) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2061 | io_index = get_free_io_mem_idx(); |
| 2062 | if (io_index == -1) |
| 2063 | return io_index; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2064 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2065 | io_index >>= IO_MEM_SHIFT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2066 | if (io_index >= IO_MEM_NB_ENTRIES) |
| 2067 | return -1; |
| 2068 | } |
| 2069 | |
| 2070 | for(i = 0;i < 3; i++) { |
| 2071 | if (!mem_read[i] || !mem_write[i]) |
| 2072 | subwidth = IO_MEM_SUBWIDTH; |
| 2073 | io_mem_read[io_index][i] = mem_read[i]; |
| 2074 | io_mem_write[io_index][i] = mem_write[i]; |
| 2075 | } |
| 2076 | io_mem_opaque[io_index] = opaque; |
| 2077 | return (io_index << IO_MEM_SHIFT) | subwidth; |
| 2078 | } |
| 2079 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 2080 | int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read, |
| 2081 | CPUWriteMemoryFunc * const *mem_write, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2082 | void *opaque) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2083 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2084 | return cpu_register_io_memory_fixed(0, mem_read, mem_write, opaque); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2085 | } |
| 2086 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2087 | void cpu_unregister_io_memory(int io_table_address) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2088 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2089 | int i; |
| 2090 | int io_index = io_table_address >> IO_MEM_SHIFT; |
| 2091 | |
| 2092 | for (i=0;i < 3; i++) { |
| 2093 | io_mem_read[io_index][i] = unassigned_mem_read[i]; |
| 2094 | io_mem_write[io_index][i] = unassigned_mem_write[i]; |
| 2095 | } |
| 2096 | io_mem_opaque[io_index] = NULL; |
| 2097 | io_mem_used[io_index] = 0; |
| 2098 | } |
| 2099 | |
| 2100 | static void io_mem_init(void) |
| 2101 | { |
| 2102 | int i; |
| 2103 | |
| 2104 | cpu_register_io_memory_fixed(IO_MEM_ROM, error_mem_read, unassigned_mem_write, NULL); |
| 2105 | cpu_register_io_memory_fixed(IO_MEM_UNASSIGNED, unassigned_mem_read, unassigned_mem_write, NULL); |
| 2106 | cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read, notdirty_mem_write, NULL); |
| 2107 | for (i=0; i<5; i++) |
| 2108 | io_mem_used[i] = 1; |
| 2109 | |
| 2110 | io_mem_watch = cpu_register_io_memory(watch_mem_read, |
| 2111 | watch_mem_write, NULL); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2112 | } |
| 2113 | |
| 2114 | #endif /* !defined(CONFIG_USER_ONLY) */ |
| 2115 | |
| 2116 | /* physical memory access (slow version, mainly for debug) */ |
| 2117 | #if defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2118 | void cpu_physical_memory_rw(hwaddr addr, void *buf, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2119 | int len, int is_write) |
| 2120 | { |
| 2121 | int l, flags; |
| 2122 | target_ulong page; |
| 2123 | void * p; |
| 2124 | |
| 2125 | while (len > 0) { |
| 2126 | page = addr & TARGET_PAGE_MASK; |
| 2127 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2128 | if (l > len) |
| 2129 | l = len; |
| 2130 | flags = page_get_flags(page); |
| 2131 | if (!(flags & PAGE_VALID)) |
| 2132 | return; |
| 2133 | if (is_write) { |
| 2134 | if (!(flags & PAGE_WRITE)) |
| 2135 | return; |
| 2136 | /* XXX: this code should not depend on lock_user */ |
| 2137 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
| 2138 | /* FIXME - should this return an error rather than just fail? */ |
| 2139 | return; |
| 2140 | memcpy(p, buf, l); |
| 2141 | unlock_user(p, addr, l); |
| 2142 | } else { |
| 2143 | if (!(flags & PAGE_READ)) |
| 2144 | return; |
| 2145 | /* XXX: this code should not depend on lock_user */ |
| 2146 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
| 2147 | /* FIXME - should this return an error rather than just fail? */ |
| 2148 | return; |
| 2149 | memcpy(buf, p, l); |
| 2150 | unlock_user(p, addr, 0); |
| 2151 | } |
| 2152 | len -= l; |
| 2153 | buf += l; |
| 2154 | addr += l; |
| 2155 | } |
| 2156 | } |
| 2157 | |
| 2158 | #else |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2159 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2160 | static void invalidate_and_set_dirty(hwaddr addr, |
| 2161 | hwaddr length) |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2162 | { |
| 2163 | if (!cpu_physical_memory_is_dirty(addr)) { |
| 2164 | /* invalidate code */ |
| 2165 | tb_invalidate_phys_page_range(addr, addr + length, 0); |
| 2166 | /* set dirty bit */ |
| 2167 | cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG)); |
| 2168 | } |
| 2169 | } |
| 2170 | |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2171 | void cpu_physical_memory_rw(hwaddr addr, void *buf, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2172 | int len, int is_write) |
| 2173 | { |
| 2174 | int l, io_index; |
| 2175 | uint8_t *ptr; |
| 2176 | uint32_t val; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2177 | hwaddr page; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2178 | unsigned long pd; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2179 | uint8_t* buf8 = (uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2180 | PhysPageDesc *p; |
| 2181 | |
| 2182 | while (len > 0) { |
| 2183 | page = addr & TARGET_PAGE_MASK; |
| 2184 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2185 | if (l > len) |
| 2186 | l = len; |
| 2187 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 2188 | if (!p) { |
| 2189 | pd = IO_MEM_UNASSIGNED; |
| 2190 | } else { |
| 2191 | pd = p->phys_offset; |
| 2192 | } |
| 2193 | |
| 2194 | if (is_write) { |
| 2195 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2196 | hwaddr addr1 = addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2197 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2198 | if (p) |
| 2199 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2200 | /* XXX: could force cpu_single_env to NULL to avoid |
| 2201 | potential bugs */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2202 | if (l >= 4 && ((addr1 & 3) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2203 | /* 32 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2204 | val = ldl_p(buf8); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2205 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr1, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2206 | l = 4; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2207 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2208 | /* 16 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2209 | val = lduw_p(buf8); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2210 | io_mem_write[io_index][1](io_mem_opaque[io_index], addr1, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2211 | l = 2; |
| 2212 | } else { |
| 2213 | /* 8 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2214 | val = ldub_p(buf8); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2215 | io_mem_write[io_index][0](io_mem_opaque[io_index], addr1, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2216 | l = 1; |
| 2217 | } |
| 2218 | } else { |
| 2219 | unsigned long addr1; |
| 2220 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2221 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2222 | ptr = qemu_get_ram_ptr(addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2223 | memcpy(ptr, buf8, l); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2224 | invalidate_and_set_dirty(addr1, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2225 | } |
| 2226 | } else { |
| 2227 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2228 | !(pd & IO_MEM_ROMD)) { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2229 | hwaddr addr1 = addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2230 | /* I/O case */ |
| 2231 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2232 | if (p) |
| 2233 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
| 2234 | if (l >= 4 && ((addr1 & 3) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2235 | /* 32 bit read access */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2236 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2237 | stl_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2238 | l = 4; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2239 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2240 | /* 16 bit read access */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2241 | val = io_mem_read[io_index][1](io_mem_opaque[io_index], addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2242 | stw_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2243 | l = 2; |
| 2244 | } else { |
| 2245 | /* 8 bit read access */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2246 | val = io_mem_read[io_index][0](io_mem_opaque[io_index], addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2247 | stb_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2248 | l = 1; |
| 2249 | } |
| 2250 | } else { |
| 2251 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2252 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2253 | (addr & ~TARGET_PAGE_MASK); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2254 | memcpy(buf8, ptr, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2255 | } |
| 2256 | } |
| 2257 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2258 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2259 | addr += l; |
| 2260 | } |
| 2261 | } |
| 2262 | |
| 2263 | /* used for ROM loading : can write in RAM and ROM */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2264 | void cpu_physical_memory_write_rom(hwaddr addr, |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2265 | const void *buf, int len) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2266 | { |
| 2267 | int l; |
| 2268 | uint8_t *ptr; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2269 | hwaddr page; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2270 | unsigned long pd; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2271 | const uint8_t* buf8 = (const uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2272 | PhysPageDesc *p; |
| 2273 | |
| 2274 | while (len > 0) { |
| 2275 | page = addr & TARGET_PAGE_MASK; |
| 2276 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2277 | if (l > len) |
| 2278 | l = len; |
| 2279 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 2280 | if (!p) { |
| 2281 | pd = IO_MEM_UNASSIGNED; |
| 2282 | } else { |
| 2283 | pd = p->phys_offset; |
| 2284 | } |
| 2285 | |
| 2286 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM && |
| 2287 | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
| 2288 | !(pd & IO_MEM_ROMD)) { |
| 2289 | /* do nothing */ |
| 2290 | } else { |
| 2291 | unsigned long addr1; |
| 2292 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2293 | /* ROM/RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2294 | ptr = qemu_get_ram_ptr(addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2295 | memcpy(ptr, buf8, l); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2296 | invalidate_and_set_dirty(addr1, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2297 | } |
| 2298 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2299 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2300 | addr += l; |
| 2301 | } |
| 2302 | } |
| 2303 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2304 | typedef struct { |
| 2305 | void *buffer; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2306 | hwaddr addr; |
| 2307 | hwaddr len; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2308 | } BounceBuffer; |
| 2309 | |
| 2310 | static BounceBuffer bounce; |
| 2311 | |
| 2312 | typedef struct MapClient { |
| 2313 | void *opaque; |
| 2314 | void (*callback)(void *opaque); |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2315 | QLIST_ENTRY(MapClient) link; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2316 | } MapClient; |
| 2317 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2318 | static QLIST_HEAD(map_client_list, MapClient) map_client_list |
| 2319 | = QLIST_HEAD_INITIALIZER(map_client_list); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2320 | |
| 2321 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
| 2322 | { |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2323 | MapClient *client = g_malloc(sizeof(*client)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2324 | |
| 2325 | client->opaque = opaque; |
| 2326 | client->callback = callback; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2327 | QLIST_INSERT_HEAD(&map_client_list, client, link); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2328 | return client; |
| 2329 | } |
| 2330 | |
| 2331 | void cpu_unregister_map_client(void *_client) |
| 2332 | { |
| 2333 | MapClient *client = (MapClient *)_client; |
| 2334 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2335 | QLIST_REMOVE(client, link); |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2336 | g_free(client); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2337 | } |
| 2338 | |
| 2339 | static void cpu_notify_map_clients(void) |
| 2340 | { |
| 2341 | MapClient *client; |
| 2342 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2343 | while (!QLIST_EMPTY(&map_client_list)) { |
| 2344 | client = QLIST_FIRST(&map_client_list); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2345 | client->callback(client->opaque); |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2346 | QLIST_REMOVE(client, link); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2347 | } |
| 2348 | } |
| 2349 | |
| 2350 | /* Map a physical memory region into a host virtual address. |
| 2351 | * May map a subset of the requested range, given by and returned in *plen. |
| 2352 | * May return NULL if resources needed to perform the mapping are exhausted. |
| 2353 | * Use only for reads OR writes - not for read-modify-write operations. |
| 2354 | * Use cpu_register_map_client() to know when retrying the map operation is |
| 2355 | * likely to succeed. |
| 2356 | */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2357 | void *cpu_physical_memory_map(hwaddr addr, |
| 2358 | hwaddr *plen, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2359 | int is_write) |
| 2360 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2361 | hwaddr len = *plen; |
| 2362 | hwaddr done = 0; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2363 | int l; |
| 2364 | uint8_t *ret = NULL; |
| 2365 | uint8_t *ptr; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2366 | hwaddr page; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2367 | unsigned long pd; |
| 2368 | PhysPageDesc *p; |
| 2369 | unsigned long addr1; |
| 2370 | |
| 2371 | while (len > 0) { |
| 2372 | page = addr & TARGET_PAGE_MASK; |
| 2373 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2374 | if (l > len) |
| 2375 | l = len; |
| 2376 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 2377 | if (!p) { |
| 2378 | pd = IO_MEM_UNASSIGNED; |
| 2379 | } else { |
| 2380 | pd = p->phys_offset; |
| 2381 | } |
| 2382 | |
| 2383 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2384 | if (done || bounce.buffer) { |
| 2385 | break; |
| 2386 | } |
| 2387 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
| 2388 | bounce.addr = addr; |
| 2389 | bounce.len = l; |
| 2390 | if (!is_write) { |
| 2391 | cpu_physical_memory_rw(addr, bounce.buffer, l, 0); |
| 2392 | } |
| 2393 | ptr = bounce.buffer; |
| 2394 | } else { |
| 2395 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2396 | ptr = qemu_get_ram_ptr(addr1); |
| 2397 | } |
| 2398 | if (!done) { |
| 2399 | ret = ptr; |
| 2400 | } else if (ret + done != ptr) { |
| 2401 | break; |
| 2402 | } |
| 2403 | |
| 2404 | len -= l; |
| 2405 | addr += l; |
| 2406 | done += l; |
| 2407 | } |
| 2408 | *plen = done; |
| 2409 | return ret; |
| 2410 | } |
| 2411 | |
| 2412 | /* Unmaps a memory region previously mapped by cpu_physical_memory_map(). |
| 2413 | * Will also mark the memory as dirty if is_write == 1. access_len gives |
| 2414 | * the amount of memory that was actually read or written by the caller. |
| 2415 | */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2416 | void cpu_physical_memory_unmap(void *buffer, hwaddr len, |
| 2417 | int is_write, hwaddr access_len) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2418 | { |
| 2419 | if (buffer != bounce.buffer) { |
| 2420 | if (is_write) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2421 | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2422 | while (access_len) { |
| 2423 | unsigned l; |
| 2424 | l = TARGET_PAGE_SIZE; |
| 2425 | if (l > access_len) |
| 2426 | l = access_len; |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2427 | invalidate_and_set_dirty(addr1, l); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2428 | addr1 += l; |
| 2429 | access_len -= l; |
| 2430 | } |
| 2431 | } |
| 2432 | return; |
| 2433 | } |
| 2434 | if (is_write) { |
| 2435 | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); |
| 2436 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2437 | qemu_vfree(bounce.buffer); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2438 | bounce.buffer = NULL; |
| 2439 | cpu_notify_map_clients(); |
| 2440 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2441 | |
| 2442 | /* warning: addr must be aligned */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2443 | uint32_t ldl_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2444 | { |
| 2445 | int io_index; |
| 2446 | uint8_t *ptr; |
| 2447 | uint32_t val; |
| 2448 | unsigned long pd; |
| 2449 | PhysPageDesc *p; |
| 2450 | |
| 2451 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2452 | if (!p) { |
| 2453 | pd = IO_MEM_UNASSIGNED; |
| 2454 | } else { |
| 2455 | pd = p->phys_offset; |
| 2456 | } |
| 2457 | |
| 2458 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2459 | !(pd & IO_MEM_ROMD)) { |
| 2460 | /* I/O case */ |
| 2461 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2462 | if (p) |
| 2463 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2464 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
| 2465 | } else { |
| 2466 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2467 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2468 | (addr & ~TARGET_PAGE_MASK); |
| 2469 | val = ldl_p(ptr); |
| 2470 | } |
| 2471 | return val; |
| 2472 | } |
| 2473 | |
| 2474 | /* warning: addr must be aligned */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2475 | uint64_t ldq_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2476 | { |
| 2477 | int io_index; |
| 2478 | uint8_t *ptr; |
| 2479 | uint64_t val; |
| 2480 | unsigned long pd; |
| 2481 | PhysPageDesc *p; |
| 2482 | |
| 2483 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2484 | if (!p) { |
| 2485 | pd = IO_MEM_UNASSIGNED; |
| 2486 | } else { |
| 2487 | pd = p->phys_offset; |
| 2488 | } |
| 2489 | |
| 2490 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2491 | !(pd & IO_MEM_ROMD)) { |
| 2492 | /* I/O case */ |
| 2493 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2494 | if (p) |
| 2495 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2496 | #ifdef TARGET_WORDS_BIGENDIAN |
| 2497 | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; |
| 2498 | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); |
| 2499 | #else |
| 2500 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
| 2501 | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; |
| 2502 | #endif |
| 2503 | } else { |
| 2504 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2505 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2506 | (addr & ~TARGET_PAGE_MASK); |
| 2507 | val = ldq_p(ptr); |
| 2508 | } |
| 2509 | return val; |
| 2510 | } |
| 2511 | |
| 2512 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2513 | uint32_t ldub_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2514 | { |
| 2515 | uint8_t val; |
| 2516 | cpu_physical_memory_read(addr, &val, 1); |
| 2517 | return val; |
| 2518 | } |
| 2519 | |
| 2520 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2521 | uint32_t lduw_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2522 | { |
| 2523 | uint16_t val; |
| 2524 | cpu_physical_memory_read(addr, (uint8_t *)&val, 2); |
| 2525 | return tswap16(val); |
| 2526 | } |
| 2527 | |
| 2528 | /* warning: addr must be aligned. The ram page is not masked as dirty |
| 2529 | and the code inside is not invalidated. It is useful if the dirty |
| 2530 | bits are used to track modified PTEs */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2531 | void stl_phys_notdirty(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2532 | { |
| 2533 | int io_index; |
| 2534 | uint8_t *ptr; |
| 2535 | unsigned long pd; |
| 2536 | PhysPageDesc *p; |
| 2537 | |
| 2538 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2539 | if (!p) { |
| 2540 | pd = IO_MEM_UNASSIGNED; |
| 2541 | } else { |
| 2542 | pd = p->phys_offset; |
| 2543 | } |
| 2544 | |
| 2545 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2546 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2547 | if (p) |
| 2548 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2549 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 2550 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2551 | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2552 | ptr = qemu_get_ram_ptr(addr1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2553 | stl_p(ptr, val); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2554 | |
| 2555 | if (unlikely(in_migration)) { |
| 2556 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 2557 | /* invalidate code */ |
| 2558 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
| 2559 | /* set dirty bit */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2560 | cpu_physical_memory_set_dirty_flags( |
| 2561 | addr1, (0xff & ~CODE_DIRTY_FLAG)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2562 | } |
| 2563 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2564 | } |
| 2565 | } |
| 2566 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2567 | void stq_phys_notdirty(hwaddr addr, uint64_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2568 | { |
| 2569 | int io_index; |
| 2570 | uint8_t *ptr; |
| 2571 | unsigned long pd; |
| 2572 | PhysPageDesc *p; |
| 2573 | |
| 2574 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2575 | if (!p) { |
| 2576 | pd = IO_MEM_UNASSIGNED; |
| 2577 | } else { |
| 2578 | pd = p->phys_offset; |
| 2579 | } |
| 2580 | |
| 2581 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2582 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2583 | if (p) |
| 2584 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2585 | #ifdef TARGET_WORDS_BIGENDIAN |
| 2586 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); |
| 2587 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); |
| 2588 | #else |
| 2589 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 2590 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); |
| 2591 | #endif |
| 2592 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2593 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2594 | (addr & ~TARGET_PAGE_MASK); |
| 2595 | stq_p(ptr, val); |
| 2596 | } |
| 2597 | } |
| 2598 | |
| 2599 | /* warning: addr must be aligned */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2600 | void stl_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2601 | { |
| 2602 | int io_index; |
| 2603 | uint8_t *ptr; |
| 2604 | unsigned long pd; |
| 2605 | PhysPageDesc *p; |
| 2606 | |
| 2607 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2608 | if (!p) { |
| 2609 | pd = IO_MEM_UNASSIGNED; |
| 2610 | } else { |
| 2611 | pd = p->phys_offset; |
| 2612 | } |
| 2613 | |
| 2614 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2615 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2616 | if (p) |
| 2617 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2618 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 2619 | } else { |
| 2620 | unsigned long addr1; |
| 2621 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2622 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2623 | ptr = qemu_get_ram_ptr(addr1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2624 | stl_p(ptr, val); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2625 | invalidate_and_set_dirty(addr1, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2626 | } |
| 2627 | } |
| 2628 | |
| 2629 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2630 | void stb_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2631 | { |
| 2632 | uint8_t v = val; |
| 2633 | cpu_physical_memory_write(addr, &v, 1); |
| 2634 | } |
| 2635 | |
| 2636 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2637 | void stw_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2638 | { |
| 2639 | uint16_t v = tswap16(val); |
| 2640 | cpu_physical_memory_write(addr, (const uint8_t *)&v, 2); |
| 2641 | } |
| 2642 | |
| 2643 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2644 | void stq_phys(hwaddr addr, uint64_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2645 | { |
| 2646 | val = tswap64(val); |
| 2647 | cpu_physical_memory_write(addr, (const uint8_t *)&val, 8); |
| 2648 | } |
| 2649 | |
| 2650 | #endif |
| 2651 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2652 | /* virtual memory access for debug (includes writing to ROM) */ |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 2653 | int cpu_memory_rw_debug(CPUOldState *env, target_ulong addr, |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2654 | void *buf, int len, int is_write) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2655 | { |
| 2656 | int l; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2657 | hwaddr phys_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2658 | target_ulong page; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2659 | uint8_t* buf8 = (uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2660 | |
| 2661 | while (len > 0) { |
| 2662 | page = addr & TARGET_PAGE_MASK; |
| 2663 | phys_addr = cpu_get_phys_page_debug(env, page); |
| 2664 | /* if no physical page mapped, return an error */ |
| 2665 | if (phys_addr == -1) |
| 2666 | return -1; |
| 2667 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2668 | if (l > len) |
| 2669 | l = len; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2670 | phys_addr += (addr & ~TARGET_PAGE_MASK); |
| 2671 | #if !defined(CONFIG_USER_ONLY) |
| 2672 | if (is_write) |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2673 | cpu_physical_memory_write_rom(phys_addr, buf8, l); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2674 | else |
| 2675 | #endif |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2676 | cpu_physical_memory_rw(phys_addr, buf8, l, is_write); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2677 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2678 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2679 | addr += l; |
| 2680 | } |
| 2681 | return 0; |
| 2682 | } |