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 | 3e0677d | 2014-03-07 15:01:06 +0100 | [diff] [blame^] | 440 | 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 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 460 | void cpu_reset_interrupt(CPUOldState *env, int mask) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 461 | { |
| 462 | env->interrupt_request &= ~mask; |
| 463 | } |
| 464 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 465 | void cpu_exit(CPUOldState *env) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 466 | { |
| 467 | env->exit_request = 1; |
| 468 | cpu_unlink_tb(env); |
| 469 | } |
| 470 | |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 471 | void cpu_abort(CPUArchState *env, const char *fmt, ...) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 472 | { |
| 473 | va_list ap; |
| 474 | va_list ap2; |
| 475 | |
| 476 | va_start(ap, fmt); |
| 477 | va_copy(ap2, ap); |
| 478 | fprintf(stderr, "qemu: fatal: "); |
| 479 | vfprintf(stderr, fmt, ap); |
| 480 | fprintf(stderr, "\n"); |
| 481 | #ifdef TARGET_I386 |
| 482 | cpu_dump_state(env, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
| 483 | #else |
| 484 | cpu_dump_state(env, stderr, fprintf, 0); |
| 485 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 486 | if (qemu_log_enabled()) { |
| 487 | qemu_log("qemu: fatal: "); |
| 488 | qemu_log_vprintf(fmt, ap2); |
| 489 | qemu_log("\n"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 490 | #ifdef TARGET_I386 |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 491 | 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] | 492 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 493 | log_cpu_state(env, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 494 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 495 | qemu_log_flush(); |
| 496 | qemu_log_close(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 497 | } |
| 498 | va_end(ap2); |
| 499 | va_end(ap); |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 500 | #if defined(CONFIG_USER_ONLY) |
| 501 | { |
| 502 | struct sigaction act; |
| 503 | sigfillset(&act.sa_mask); |
| 504 | act.sa_handler = SIG_DFL; |
| 505 | sigaction(SIGABRT, &act, NULL); |
| 506 | } |
| 507 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 508 | abort(); |
| 509 | } |
| 510 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 511 | CPUArchState *cpu_copy(CPUOldState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 512 | { |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 513 | CPUArchState *new_env = cpu_init(env->cpu_model_str); |
| 514 | CPUArchState *next_cpu = new_env->next_cpu; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 515 | int cpu_index = new_env->cpu_index; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 516 | #if defined(TARGET_HAS_ICE) |
| 517 | CPUBreakpoint *bp; |
| 518 | CPUWatchpoint *wp; |
| 519 | #endif |
| 520 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 521 | memcpy(new_env, env, sizeof(CPUOldState)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 522 | |
| 523 | /* Preserve chaining and index. */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 524 | new_env->next_cpu = next_cpu; |
| 525 | new_env->cpu_index = cpu_index; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 526 | |
| 527 | /* Clone all break/watchpoints. |
| 528 | Note: Once we support ptrace with hw-debug register access, make sure |
| 529 | BP_CPU break/watchpoints are handled correctly on clone. */ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 530 | QTAILQ_INIT(&env->breakpoints); |
| 531 | QTAILQ_INIT(&env->watchpoints); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 532 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 533 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 534 | cpu_breakpoint_insert(new_env, bp->pc, bp->flags, NULL); |
| 535 | } |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 536 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 537 | cpu_watchpoint_insert(new_env, wp->vaddr, (~wp->len_mask) + 1, |
| 538 | wp->flags, NULL); |
| 539 | } |
| 540 | #endif |
| 541 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 542 | return new_env; |
| 543 | } |
| 544 | |
| 545 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 546 | static RAMBlock *qemu_get_ram_block(ram_addr_t addr) |
| 547 | { |
| 548 | RAMBlock *block; |
| 549 | |
| 550 | /* The list is protected by the iothread lock here. */ |
| 551 | block = ram_list.mru_block; |
| 552 | if (block && addr - block->offset < block->length) { |
| 553 | goto found; |
| 554 | } |
| 555 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 556 | if (addr - block->offset < block->length) { |
| 557 | goto found; |
| 558 | } |
| 559 | } |
| 560 | |
| 561 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 562 | abort(); |
| 563 | |
| 564 | found: |
| 565 | ram_list.mru_block = block; |
| 566 | return block; |
| 567 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 568 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 569 | /* 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] | 570 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
| 571 | int dirty_flags) |
| 572 | { |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 573 | CPUOldState *env; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 574 | unsigned long length, start1; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 575 | int i; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 576 | |
| 577 | start &= TARGET_PAGE_MASK; |
| 578 | end = TARGET_PAGE_ALIGN(end); |
| 579 | |
| 580 | length = end - start; |
| 581 | if (length == 0) |
| 582 | return; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 583 | 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] | 584 | |
| 585 | /* we modify the TLB cache so that the dirty bit will be set again |
| 586 | when accessing the range */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 587 | start1 = (unsigned long)qemu_safe_ram_ptr(start); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 588 | /* Chek that we don't span multiple blocks - this breaks the |
| 589 | address comparisons below. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 590 | if ((unsigned long)qemu_safe_ram_ptr(end - 1) - start1 |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 591 | != (end - 1) - start) { |
| 592 | abort(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 593 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 594 | |
| 595 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 596 | int mmu_idx; |
| 597 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
| 598 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 599 | tlb_reset_dirty_range(&env->tlb_table[mmu_idx][i], |
| 600 | start1, length); |
| 601 | } |
| 602 | } |
| 603 | } |
| 604 | |
| 605 | int cpu_physical_memory_set_dirty_tracking(int enable) |
| 606 | { |
| 607 | in_migration = enable; |
| 608 | if (kvm_enabled()) { |
| 609 | return kvm_set_migration_log(enable); |
| 610 | } |
| 611 | return 0; |
| 612 | } |
| 613 | |
| 614 | int cpu_physical_memory_get_dirty_tracking(void) |
| 615 | { |
| 616 | return in_migration; |
| 617 | } |
| 618 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 619 | int cpu_physical_sync_dirty_bitmap(hwaddr start_addr, |
| 620 | hwaddr end_addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 621 | { |
| 622 | int ret = 0; |
| 623 | |
| 624 | if (kvm_enabled()) |
| 625 | ret = kvm_physical_sync_dirty_bitmap(start_addr, end_addr); |
| 626 | return ret; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 627 | } |
| 628 | |
| 629 | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
| 630 | { |
| 631 | ram_addr_t ram_addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 632 | void *p; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 633 | |
| 634 | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 635 | p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) |
| 636 | + tlb_entry->addend); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 637 | ram_addr = qemu_ram_addr_from_host_nofail(p); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 638 | if (!cpu_physical_memory_is_dirty(ram_addr)) { |
| 639 | tlb_entry->addr_write |= TLB_NOTDIRTY; |
| 640 | } |
| 641 | } |
| 642 | } |
| 643 | |
| 644 | /* 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] | 645 | void cpu_tlb_update_dirty(CPUArchState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 646 | { |
| 647 | int i; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 648 | int mmu_idx; |
| 649 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
| 650 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 651 | tlb_update_dirty(&env->tlb_table[mmu_idx][i]); |
| 652 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 653 | } |
| 654 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 655 | |
| 656 | #else |
| 657 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 658 | void tlb_flush(CPUArchState *env, int flush_global) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 659 | { |
| 660 | } |
| 661 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 662 | void tlb_flush_page(CPUArchState *env, target_ulong addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 663 | { |
| 664 | } |
| 665 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 666 | int tlb_set_page_exec(CPUArchState *env, target_ulong vaddr, |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 667 | hwaddr paddr, int prot, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 668 | int mmu_idx, int is_softmmu) |
| 669 | { |
| 670 | return 0; |
| 671 | } |
| 672 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 673 | static inline void tlb_set_dirty(CPUOldState *env, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 674 | unsigned long addr, target_ulong vaddr) |
| 675 | { |
| 676 | } |
| 677 | #endif /* defined(CONFIG_USER_ONLY) */ |
| 678 | |
| 679 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 680 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 681 | 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] | 682 | ram_addr_t memory, ram_addr_t region_offset); |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 683 | static void *subpage_init (hwaddr base, ram_addr_t *phys, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 684 | ram_addr_t orig_memory, ram_addr_t region_offset); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 685 | |
| 686 | static void *(*phys_mem_alloc)(size_t size) = qemu_anon_ram_alloc; |
| 687 | |
| 688 | /* |
| 689 | * Set a custom physical guest memory alloator. |
| 690 | * Accelerators with unusual needs may need this. Hopefully, we can |
| 691 | * get rid of it eventually. |
| 692 | */ |
| 693 | void phys_mem_set_alloc(void *(*alloc)(size_t)) |
| 694 | { |
| 695 | phys_mem_alloc = alloc; |
| 696 | } |
| 697 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 698 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \ |
| 699 | need_subpage) \ |
| 700 | do { \ |
| 701 | if (addr > start_addr) \ |
| 702 | start_addr2 = 0; \ |
| 703 | else { \ |
| 704 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
| 705 | if (start_addr2 > 0) \ |
| 706 | need_subpage = 1; \ |
| 707 | } \ |
| 708 | \ |
| 709 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \ |
| 710 | end_addr2 = TARGET_PAGE_SIZE - 1; \ |
| 711 | else { \ |
| 712 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \ |
| 713 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
| 714 | need_subpage = 1; \ |
| 715 | } \ |
| 716 | } while (0) |
| 717 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 718 | /* register physical memory. |
| 719 | For RAM, 'size' must be a multiple of the target page size. |
| 720 | If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 721 | io memory page. The address used when calling the IO function is |
| 722 | the offset from the start of the region, plus region_offset. Both |
| 723 | start_addr and region_offset are rounded down to a page boundary |
| 724 | before calculating this offset. This should not be a problem unless |
| 725 | the low bits of start_addr and region_offset differ. */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 726 | void cpu_register_physical_memory_log(hwaddr start_addr, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 727 | ram_addr_t size, |
| 728 | ram_addr_t phys_offset, |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 729 | ram_addr_t region_offset, |
| 730 | bool log_dirty) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 731 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 732 | hwaddr addr, end_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 733 | PhysPageDesc *p; |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 734 | CPUOldState *env; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 735 | ram_addr_t orig_size = size; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 736 | subpage_t *subpage; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 737 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 738 | if (kvm_enabled()) |
| 739 | kvm_set_phys_mem(start_addr, size, phys_offset); |
Jun Nakajima | a381ef0 | 2011-12-17 19:13:25 -0800 | [diff] [blame] | 740 | #ifdef CONFIG_HAX |
| 741 | if (hax_enabled()) |
| 742 | hax_set_phys_mem(start_addr, size, phys_offset); |
| 743 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 744 | |
| 745 | if (phys_offset == IO_MEM_UNASSIGNED) { |
| 746 | region_offset = start_addr; |
| 747 | } |
| 748 | region_offset &= TARGET_PAGE_MASK; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 749 | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 750 | end_addr = start_addr + (hwaddr)size; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 751 | |
| 752 | addr = start_addr; |
| 753 | do { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 754 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 755 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) { |
| 756 | ram_addr_t orig_memory = p->phys_offset; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 757 | hwaddr start_addr2, end_addr2; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 758 | int need_subpage = 0; |
| 759 | |
| 760 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
| 761 | need_subpage); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 762 | if (need_subpage) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 763 | if (!(orig_memory & IO_MEM_SUBPAGE)) { |
| 764 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 765 | &p->phys_offset, orig_memory, |
| 766 | p->region_offset); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 767 | } else { |
| 768 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
| 769 | >> IO_MEM_SHIFT]; |
| 770 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 771 | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
| 772 | region_offset); |
| 773 | p->region_offset = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 774 | } else { |
| 775 | p->phys_offset = phys_offset; |
| 776 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
| 777 | (phys_offset & IO_MEM_ROMD)) |
| 778 | phys_offset += TARGET_PAGE_SIZE; |
| 779 | } |
| 780 | } else { |
| 781 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); |
| 782 | p->phys_offset = phys_offset; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 783 | p->region_offset = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 784 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 785 | (phys_offset & IO_MEM_ROMD)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 786 | phys_offset += TARGET_PAGE_SIZE; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 787 | } else { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 788 | hwaddr start_addr2, end_addr2; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 789 | int need_subpage = 0; |
| 790 | |
| 791 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
| 792 | end_addr2, need_subpage); |
| 793 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 794 | if (need_subpage) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 795 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 796 | &p->phys_offset, IO_MEM_UNASSIGNED, |
| 797 | addr & TARGET_PAGE_MASK); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 798 | subpage_register(subpage, start_addr2, end_addr2, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 799 | phys_offset, region_offset); |
| 800 | p->region_offset = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 801 | } |
| 802 | } |
| 803 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 804 | region_offset += TARGET_PAGE_SIZE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 805 | addr += TARGET_PAGE_SIZE; |
| 806 | } while (addr != end_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 807 | |
| 808 | /* since each CPU stores ram addresses in its TLB cache, we must |
| 809 | reset the modified entries */ |
| 810 | /* XXX: slow ! */ |
| 811 | for(env = first_cpu; env != NULL; env = env->next_cpu) { |
| 812 | tlb_flush(env, 1); |
| 813 | } |
| 814 | } |
| 815 | |
| 816 | /* XXX: temporary until new memory mapping API */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 817 | 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] | 818 | { |
| 819 | PhysPageDesc *p; |
| 820 | |
| 821 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 822 | if (!p) |
| 823 | return IO_MEM_UNASSIGNED; |
| 824 | return p->phys_offset; |
| 825 | } |
| 826 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 827 | void qemu_register_coalesced_mmio(hwaddr addr, ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 828 | { |
| 829 | if (kvm_enabled()) |
| 830 | kvm_coalesce_mmio_region(addr, size); |
| 831 | } |
| 832 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 833 | void qemu_unregister_coalesced_mmio(hwaddr addr, ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 834 | { |
| 835 | if (kvm_enabled()) |
| 836 | kvm_uncoalesce_mmio_region(addr, size); |
| 837 | } |
| 838 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 839 | void qemu_mutex_lock_ramlist(void) |
| 840 | { |
| 841 | qemu_mutex_lock(&ram_list.mutex); |
| 842 | } |
| 843 | |
| 844 | void qemu_mutex_unlock_ramlist(void) |
| 845 | { |
| 846 | qemu_mutex_unlock(&ram_list.mutex); |
| 847 | } |
| 848 | |
| 849 | #if defined(__linux__) && !defined(CONFIG_ANDROID) |
| 850 | |
| 851 | #include <sys/vfs.h> |
| 852 | |
| 853 | #define HUGETLBFS_MAGIC 0x958458f6 |
| 854 | |
| 855 | static long gethugepagesize(const char *path) |
| 856 | { |
| 857 | struct statfs fs; |
| 858 | int ret; |
| 859 | |
| 860 | do { |
| 861 | ret = statfs(path, &fs); |
| 862 | } while (ret != 0 && errno == EINTR); |
| 863 | |
| 864 | if (ret != 0) { |
| 865 | perror(path); |
| 866 | return 0; |
| 867 | } |
| 868 | |
| 869 | if (fs.f_type != HUGETLBFS_MAGIC) |
| 870 | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); |
| 871 | |
| 872 | return fs.f_bsize; |
| 873 | } |
| 874 | |
| 875 | static sigjmp_buf sigjump; |
| 876 | |
| 877 | static void sigbus_handler(int signal) |
| 878 | { |
| 879 | siglongjmp(sigjump, 1); |
| 880 | } |
| 881 | |
| 882 | static void *file_ram_alloc(RAMBlock *block, |
| 883 | ram_addr_t memory, |
| 884 | const char *path) |
| 885 | { |
| 886 | char *filename; |
| 887 | char *sanitized_name; |
| 888 | char *c; |
| 889 | void *area; |
| 890 | int fd; |
| 891 | unsigned long hpagesize; |
| 892 | |
| 893 | hpagesize = gethugepagesize(path); |
| 894 | if (!hpagesize) { |
| 895 | return NULL; |
| 896 | } |
| 897 | |
| 898 | if (memory < hpagesize) { |
| 899 | return NULL; |
| 900 | } |
| 901 | |
| 902 | if (kvm_enabled() && !kvm_has_sync_mmu()) { |
| 903 | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); |
| 904 | return NULL; |
| 905 | } |
| 906 | |
| 907 | /* Make name safe to use with mkstemp by replacing '/' with '_'. */ |
| 908 | sanitized_name = g_strdup(block->mr->name); |
| 909 | for (c = sanitized_name; *c != '\0'; c++) { |
| 910 | if (*c == '/') |
| 911 | *c = '_'; |
| 912 | } |
| 913 | |
| 914 | filename = g_strdup_printf("%s/qemu_back_mem.%s.XXXXXX", path, |
| 915 | sanitized_name); |
| 916 | g_free(sanitized_name); |
| 917 | |
| 918 | fd = mkstemp(filename); |
| 919 | if (fd < 0) { |
| 920 | perror("unable to create backing store for hugepages"); |
| 921 | g_free(filename); |
| 922 | return NULL; |
| 923 | } |
| 924 | unlink(filename); |
| 925 | g_free(filename); |
| 926 | |
| 927 | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
| 928 | |
| 929 | /* |
| 930 | * ftruncate is not supported by hugetlbfs in older |
| 931 | * hosts, so don't bother bailing out on errors. |
| 932 | * If anything goes wrong with it under other filesystems, |
| 933 | * mmap will fail. |
| 934 | */ |
| 935 | if (ftruncate(fd, memory)) |
| 936 | perror("ftruncate"); |
| 937 | |
| 938 | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
| 939 | if (area == MAP_FAILED) { |
| 940 | perror("file_ram_alloc: can't mmap RAM pages"); |
| 941 | close(fd); |
| 942 | return (NULL); |
| 943 | } |
| 944 | |
| 945 | if (mem_prealloc) { |
| 946 | int ret, i; |
| 947 | struct sigaction act, oldact; |
| 948 | sigset_t set, oldset; |
| 949 | |
| 950 | memset(&act, 0, sizeof(act)); |
| 951 | act.sa_handler = &sigbus_handler; |
| 952 | act.sa_flags = 0; |
| 953 | |
| 954 | ret = sigaction(SIGBUS, &act, &oldact); |
| 955 | if (ret) { |
| 956 | perror("file_ram_alloc: failed to install signal handler"); |
| 957 | exit(1); |
| 958 | } |
| 959 | |
| 960 | /* unblock SIGBUS */ |
| 961 | sigemptyset(&set); |
| 962 | sigaddset(&set, SIGBUS); |
| 963 | pthread_sigmask(SIG_UNBLOCK, &set, &oldset); |
| 964 | |
| 965 | if (sigsetjmp(sigjump, 1)) { |
| 966 | fprintf(stderr, "file_ram_alloc: failed to preallocate pages\n"); |
| 967 | exit(1); |
| 968 | } |
| 969 | |
| 970 | /* MAP_POPULATE silently ignores failures */ |
| 971 | for (i = 0; i < (memory/hpagesize)-1; i++) { |
| 972 | memset(area + (hpagesize*i), 0, 1); |
| 973 | } |
| 974 | |
| 975 | ret = sigaction(SIGBUS, &oldact, NULL); |
| 976 | if (ret) { |
| 977 | perror("file_ram_alloc: failed to reinstall signal handler"); |
| 978 | exit(1); |
| 979 | } |
| 980 | |
| 981 | pthread_sigmask(SIG_SETMASK, &oldset, NULL); |
| 982 | } |
| 983 | |
| 984 | block->fd = fd; |
| 985 | return area; |
| 986 | } |
| 987 | #else |
| 988 | static void *file_ram_alloc(RAMBlock *block, |
| 989 | ram_addr_t memory, |
| 990 | const char *path) |
| 991 | { |
| 992 | fprintf(stderr, "-mem-path not supported on this host\n"); |
| 993 | exit(1); |
| 994 | } |
| 995 | #endif |
| 996 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 997 | static ram_addr_t find_ram_offset(ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 998 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 999 | RAMBlock *block, *next_block; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1000 | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1001 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1002 | assert(size != 0); /* it would hand out same offset multiple times */ |
| 1003 | |
| 1004 | if (QTAILQ_EMPTY(&ram_list.blocks)) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1005 | return 0; |
| 1006 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1007 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1008 | ram_addr_t end, next = RAM_ADDR_MAX; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1009 | |
| 1010 | end = block->offset + block->length; |
| 1011 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1012 | QTAILQ_FOREACH(next_block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1013 | if (next_block->offset >= end) { |
| 1014 | next = MIN(next, next_block->offset); |
| 1015 | } |
| 1016 | } |
| 1017 | if (next - end >= size && next - end < mingap) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1018 | offset = end; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1019 | mingap = next - end; |
| 1020 | } |
| 1021 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1022 | |
| 1023 | if (offset == RAM_ADDR_MAX) { |
| 1024 | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", |
| 1025 | (uint64_t)size); |
| 1026 | abort(); |
| 1027 | } |
| 1028 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1029 | return offset; |
| 1030 | } |
| 1031 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1032 | ram_addr_t last_ram_offset(void) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1033 | { |
| 1034 | RAMBlock *block; |
| 1035 | ram_addr_t last = 0; |
| 1036 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1037 | QTAILQ_FOREACH(block, &ram_list.blocks, next) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1038 | last = MAX(last, block->offset + block->length); |
| 1039 | |
| 1040 | return last; |
| 1041 | } |
| 1042 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1043 | static void qemu_ram_setup_dump(void *addr, ram_addr_t size) |
| 1044 | { |
| 1045 | #ifndef CONFIG_ANDROID |
| 1046 | int ret; |
| 1047 | |
| 1048 | /* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */ |
| 1049 | if (!qemu_opt_get_bool(qemu_get_machine_opts(), |
| 1050 | "dump-guest-core", true)) { |
| 1051 | ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP); |
| 1052 | if (ret) { |
| 1053 | perror("qemu_madvise"); |
| 1054 | fprintf(stderr, "madvise doesn't support MADV_DONTDUMP, " |
| 1055 | "but dump_guest_core=off specified\n"); |
| 1056 | } |
| 1057 | } |
| 1058 | #endif // !CONFIG_ANDROID |
| 1059 | } |
| 1060 | |
| 1061 | 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] | 1062 | { |
| 1063 | RAMBlock *new_block, *block; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1064 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1065 | new_block = NULL; |
| 1066 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1067 | if (block->offset == addr) { |
| 1068 | new_block = block; |
| 1069 | break; |
| 1070 | } |
| 1071 | } |
| 1072 | assert(new_block); |
| 1073 | assert(!new_block->idstr[0]); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1074 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1075 | if (dev) { |
| 1076 | char *id = qdev_get_dev_path(dev); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1077 | if (id) { |
| 1078 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1079 | g_free(id); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1080 | } |
| 1081 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1082 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); |
| 1083 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1084 | /* This assumes the iothread lock is taken here too. */ |
| 1085 | qemu_mutex_lock_ramlist(); |
| 1086 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1087 | if (block != new_block && !strcmp(block->idstr, new_block->idstr)) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1088 | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", |
| 1089 | new_block->idstr); |
| 1090 | abort(); |
| 1091 | } |
| 1092 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1093 | qemu_mutex_unlock_ramlist(); |
| 1094 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1095 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1096 | static int memory_try_enable_merging(void *addr, size_t len) |
| 1097 | { |
| 1098 | #ifndef CONFIG_ANDROID |
| 1099 | if (!qemu_opt_get_bool(qemu_get_machine_opts(), "mem-merge", true)) { |
| 1100 | /* disabled by the user */ |
| 1101 | return 0; |
| 1102 | } |
| 1103 | |
| 1104 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1105 | #else // CONFIG_ANDROID |
| 1106 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1107 | #endif // CONFIG_ANDROID |
| 1108 | } |
| 1109 | |
| 1110 | ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, |
| 1111 | ram_addr_t size, void *host) |
| 1112 | { |
| 1113 | RAMBlock *block, *new_block; |
| 1114 | |
| 1115 | size = TARGET_PAGE_ALIGN(size); |
| 1116 | new_block = g_malloc0(sizeof(*new_block)); |
| 1117 | new_block->fd = -1; |
| 1118 | |
| 1119 | /* This assumes the iothread lock is taken here too. */ |
| 1120 | qemu_mutex_lock_ramlist(); |
| 1121 | //new_block->mr = mr; |
| 1122 | new_block->offset = find_ram_offset(size); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1123 | if (host) { |
| 1124 | new_block->host = host; |
| 1125 | new_block->flags |= RAM_PREALLOC_MASK; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1126 | } else if (xen_enabled()) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1127 | if (mem_path) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1128 | fprintf(stderr, "-mem-path not supported with Xen\n"); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1129 | exit(1); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1130 | } |
| 1131 | //xen_ram_alloc(new_block->offset, size, mr); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1132 | } else { |
| 1133 | if (mem_path) { |
| 1134 | if (phys_mem_alloc != qemu_anon_ram_alloc) { |
| 1135 | /* |
| 1136 | * file_ram_alloc() needs to allocate just like |
| 1137 | * phys_mem_alloc, but we haven't bothered to provide |
| 1138 | * a hook there. |
| 1139 | */ |
| 1140 | fprintf(stderr, |
| 1141 | "-mem-path not supported with this accelerator\n"); |
| 1142 | exit(1); |
| 1143 | } |
| 1144 | new_block->host = file_ram_alloc(new_block, size, mem_path); |
| 1145 | } |
| 1146 | if (!new_block->host) { |
| 1147 | new_block->host = phys_mem_alloc(size); |
| 1148 | if (!new_block->host) { |
| 1149 | fprintf(stderr, "Cannot set up guest memory '%s': %s\n", |
| 1150 | name, strerror(errno)); |
| 1151 | exit(1); |
| 1152 | } |
David 'Digit' Turner | f2de2ae | 2014-03-07 16:25:58 +0100 | [diff] [blame] | 1153 | #ifdef CONFIG_HAX |
| 1154 | if (hax_enabled()) { |
| 1155 | /* |
| 1156 | * In HAX, qemu allocates the virtual address, and HAX kernel |
| 1157 | * module populates the region with physical memory. Currently |
| 1158 | * we don’t populate guest memory on demand, thus we should |
| 1159 | * make sure that sufficient amount of memory is available in |
| 1160 | * advance. |
| 1161 | */ |
| 1162 | int ret = hax_populate_ram( |
| 1163 | (uint64_t)(uintptr_t)new_block->host, |
| 1164 | (uint32_t)size); |
| 1165 | if (ret < 0) { |
| 1166 | fprintf(stderr, "Hax failed to populate ram\n"); |
| 1167 | exit(-1); |
| 1168 | } |
| 1169 | } |
| 1170 | #endif // CONFIG_HAX |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1171 | memory_try_enable_merging(new_block->host, size); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1172 | } |
| 1173 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1174 | new_block->length = size; |
| 1175 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1176 | /* Keep the list sorted from biggest to smallest block. */ |
| 1177 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1178 | if (block->length < new_block->length) { |
| 1179 | break; |
| 1180 | } |
| 1181 | } |
| 1182 | if (block) { |
| 1183 | QTAILQ_INSERT_BEFORE(block, new_block, next); |
| 1184 | } else { |
| 1185 | QTAILQ_INSERT_TAIL(&ram_list.blocks, new_block, next); |
| 1186 | } |
| 1187 | ram_list.mru_block = NULL; |
| 1188 | |
| 1189 | ram_list.version++; |
| 1190 | qemu_mutex_unlock_ramlist(); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1191 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1192 | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1193 | last_ram_offset() >> TARGET_PAGE_BITS); |
| 1194 | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1195 | 0xff, size >> TARGET_PAGE_BITS); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1196 | //cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1197 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1198 | //qemu_ram_setup_dump(new_block->host, size); |
| 1199 | //qemu_madvise(new_block->host, size, QEMU_MADV_HUGEPAGE); |
| 1200 | //qemu_madvise(new_block->host, size, QEMU_MADV_DONTFORK); |
| 1201 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1202 | if (kvm_enabled()) |
| 1203 | kvm_setup_guest_memory(new_block->host, size); |
| 1204 | |
| 1205 | return new_block->offset; |
| 1206 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1207 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1208 | ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) |
| 1209 | { |
| 1210 | return qemu_ram_alloc_from_ptr(dev, name, size, NULL); |
| 1211 | } |
| 1212 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1213 | void qemu_ram_free_from_ptr(ram_addr_t addr) |
| 1214 | { |
| 1215 | RAMBlock *block; |
| 1216 | |
| 1217 | /* This assumes the iothread lock is taken here too. */ |
| 1218 | qemu_mutex_lock_ramlist(); |
| 1219 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1220 | if (addr == block->offset) { |
| 1221 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
| 1222 | ram_list.mru_block = NULL; |
| 1223 | ram_list.version++; |
| 1224 | g_free(block); |
| 1225 | break; |
| 1226 | } |
| 1227 | } |
| 1228 | qemu_mutex_unlock_ramlist(); |
| 1229 | } |
| 1230 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1231 | void qemu_ram_free(ram_addr_t addr) |
| 1232 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1233 | RAMBlock *block; |
| 1234 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1235 | /* This assumes the iothread lock is taken here too. */ |
| 1236 | qemu_mutex_lock_ramlist(); |
| 1237 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1238 | if (addr == block->offset) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1239 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
| 1240 | ram_list.mru_block = NULL; |
| 1241 | ram_list.version++; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1242 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1243 | ; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1244 | } else if (xen_enabled()) { |
| 1245 | //xen_invalidate_map_cache_entry(block->host); |
| 1246 | #ifndef _WIN32 |
| 1247 | } else if (block->fd >= 0) { |
| 1248 | munmap(block->host, block->length); |
| 1249 | close(block->fd); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1250 | #endif |
| 1251 | } else { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1252 | qemu_anon_ram_free(block->host, block->length); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1253 | } |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1254 | g_free(block); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1255 | break; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1256 | } |
| 1257 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1258 | qemu_mutex_unlock_ramlist(); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1259 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1260 | } |
| 1261 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1262 | #ifndef _WIN32 |
| 1263 | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) |
| 1264 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1265 | RAMBlock *block; |
| 1266 | ram_addr_t offset; |
| 1267 | int flags; |
| 1268 | void *area, *vaddr; |
| 1269 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1270 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1271 | offset = addr - block->offset; |
| 1272 | if (offset < block->length) { |
| 1273 | vaddr = block->host + offset; |
| 1274 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1275 | ; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1276 | } else if (xen_enabled()) { |
| 1277 | abort(); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1278 | } else { |
| 1279 | flags = MAP_FIXED; |
| 1280 | munmap(vaddr, length); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1281 | if (block->fd >= 0) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1282 | #ifdef MAP_POPULATE |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1283 | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : |
| 1284 | MAP_PRIVATE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1285 | #else |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1286 | flags |= MAP_PRIVATE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1287 | #endif |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1288 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1289 | flags, block->fd, offset); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1290 | } else { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1291 | /* |
| 1292 | * Remap needs to match alloc. Accelerators that |
| 1293 | * set phys_mem_alloc never remap. If they did, |
| 1294 | * we'd need a remap hook here. |
| 1295 | */ |
| 1296 | assert(phys_mem_alloc == qemu_anon_ram_alloc); |
| 1297 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1298 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
| 1299 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1300 | flags, -1, 0); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1301 | } |
| 1302 | if (area != vaddr) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1303 | fprintf(stderr, "Could not remap addr: " |
| 1304 | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1305 | length, addr); |
| 1306 | exit(1); |
| 1307 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1308 | memory_try_enable_merging(vaddr, length); |
| 1309 | qemu_ram_setup_dump(vaddr, length); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1310 | } |
| 1311 | return; |
| 1312 | } |
| 1313 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1314 | } |
| 1315 | #endif /* !_WIN32 */ |
| 1316 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1317 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
| 1318 | With the exception of the softmmu code in this file, this should |
| 1319 | only be used for local memory (e.g. video ram) that the device owns, |
| 1320 | and knows it isn't going to access beyond the end of the block. |
| 1321 | |
| 1322 | It should not be used for general purpose DMA. |
| 1323 | Use cpu_physical_memory_map/cpu_physical_memory_rw instead. |
| 1324 | */ |
| 1325 | void *qemu_get_ram_ptr(ram_addr_t addr) |
| 1326 | { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1327 | RAMBlock *block = qemu_get_ram_block(addr); |
| 1328 | #if 0 |
| 1329 | if (xen_enabled()) { |
| 1330 | /* We need to check if the requested address is in the RAM |
| 1331 | * because we don't want to map the entire memory in QEMU. |
| 1332 | * In that case just map until the end of the page. |
| 1333 | */ |
| 1334 | if (block->offset == 0) { |
| 1335 | return xen_map_cache(addr, 0, 0); |
| 1336 | } else if (block->host == NULL) { |
| 1337 | block->host = |
| 1338 | xen_map_cache(block->offset, block->length, 1); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1339 | } |
| 1340 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1341 | #endif |
| 1342 | return block->host + (addr - block->offset); |
| 1343 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1344 | |
| 1345 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
| 1346 | * Same as qemu_get_ram_ptr but avoid reordering ramblocks. |
| 1347 | */ |
| 1348 | void *qemu_safe_ram_ptr(ram_addr_t addr) |
| 1349 | { |
| 1350 | RAMBlock *block; |
| 1351 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1352 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1353 | if (addr - block->offset < block->length) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1354 | return block->host + (addr - block->offset); |
| 1355 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1356 | } |
| 1357 | |
| 1358 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1359 | abort(); |
| 1360 | |
| 1361 | return NULL; |
| 1362 | } |
| 1363 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1364 | /* Some of the softmmu routines need to translate from a host pointer |
| 1365 | (typically a TLB entry) back to a ram offset. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1366 | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
| 1367 | { |
| 1368 | RAMBlock *block; |
| 1369 | uint8_t *host = ptr; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1370 | #if 0 |
| 1371 | if (xen_enabled()) { |
| 1372 | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
| 1373 | return qemu_get_ram_block(*ram_addr)->mr; |
| 1374 | } |
| 1375 | #endif |
| 1376 | block = ram_list.mru_block; |
| 1377 | if (block && block->host && host - block->host < block->length) { |
| 1378 | goto found; |
| 1379 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1380 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1381 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1382 | /* This case append when the block is not mapped. */ |
| 1383 | if (block->host == NULL) { |
| 1384 | continue; |
| 1385 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1386 | if (host - block->host < block->length) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1387 | goto found; |
| 1388 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1389 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1390 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1391 | return -1; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1392 | |
| 1393 | found: |
| 1394 | *ram_addr = block->offset + (host - block->host); |
| 1395 | return 0; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1396 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1397 | |
| 1398 | /* Some of the softmmu routines need to translate from a host pointer |
| 1399 | (typically a TLB entry) back to a ram offset. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1400 | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1401 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1402 | ram_addr_t ram_addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1403 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1404 | if (qemu_ram_addr_from_host(ptr, &ram_addr)) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1405 | fprintf(stderr, "Bad ram pointer %p\n", ptr); |
| 1406 | abort(); |
| 1407 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1408 | return ram_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1409 | } |
| 1410 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1411 | 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] | 1412 | { |
| 1413 | #ifdef DEBUG_UNASSIGNED |
| 1414 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1415 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1416 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1417 | do_unassigned_access(addr, 0, 0, 0, 1); |
| 1418 | #endif |
| 1419 | return 0; |
| 1420 | } |
| 1421 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1422 | static uint32_t unassigned_mem_readw(void *opaque, hwaddr addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1423 | { |
| 1424 | #ifdef DEBUG_UNASSIGNED |
| 1425 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1426 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1427 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1428 | do_unassigned_access(addr, 0, 0, 0, 2); |
| 1429 | #endif |
| 1430 | return 0; |
| 1431 | } |
| 1432 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1433 | static uint32_t unassigned_mem_readl(void *opaque, hwaddr addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1434 | { |
| 1435 | #ifdef DEBUG_UNASSIGNED |
| 1436 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1437 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1438 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1439 | do_unassigned_access(addr, 0, 0, 0, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1440 | #endif |
| 1441 | return 0; |
| 1442 | } |
| 1443 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1444 | 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] | 1445 | { |
| 1446 | #ifdef DEBUG_UNASSIGNED |
| 1447 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1448 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1449 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1450 | do_unassigned_access(addr, 1, 0, 0, 1); |
| 1451 | #endif |
| 1452 | } |
| 1453 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1454 | 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] | 1455 | { |
| 1456 | #ifdef DEBUG_UNASSIGNED |
| 1457 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1458 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1459 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1460 | do_unassigned_access(addr, 1, 0, 0, 2); |
| 1461 | #endif |
| 1462 | } |
| 1463 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1464 | 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] | 1465 | { |
| 1466 | #ifdef DEBUG_UNASSIGNED |
| 1467 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1468 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1469 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1470 | do_unassigned_access(addr, 1, 0, 0, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1471 | #endif |
| 1472 | } |
| 1473 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1474 | static CPUReadMemoryFunc * const unassigned_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1475 | unassigned_mem_readb, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1476 | unassigned_mem_readw, |
| 1477 | unassigned_mem_readl, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1478 | }; |
| 1479 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1480 | static CPUWriteMemoryFunc * const unassigned_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1481 | unassigned_mem_writeb, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1482 | unassigned_mem_writew, |
| 1483 | unassigned_mem_writel, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1484 | }; |
| 1485 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1486 | 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] | 1487 | uint32_t val) |
| 1488 | { |
| 1489 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1490 | 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] | 1491 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1492 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame] | 1493 | tb_invalidate_phys_page_fast0(ram_addr, 1); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1494 | 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] | 1495 | #endif |
| 1496 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1497 | stb_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1498 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1499 | 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] | 1500 | /* we remove the notdirty callback only if the code has been |
| 1501 | flushed */ |
| 1502 | if (dirty_flags == 0xff) |
| 1503 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1504 | } |
| 1505 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1506 | 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] | 1507 | uint32_t val) |
| 1508 | { |
| 1509 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1510 | 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] | 1511 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1512 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame] | 1513 | tb_invalidate_phys_page_fast0(ram_addr, 2); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1514 | 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] | 1515 | #endif |
| 1516 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1517 | stw_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1518 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1519 | 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] | 1520 | /* we remove the notdirty callback only if the code has been |
| 1521 | flushed */ |
| 1522 | if (dirty_flags == 0xff) |
| 1523 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1524 | } |
| 1525 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1526 | 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] | 1527 | uint32_t val) |
| 1528 | { |
| 1529 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1530 | 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] | 1531 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1532 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame] | 1533 | tb_invalidate_phys_page_fast0(ram_addr, 4); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1534 | 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] | 1535 | #endif |
| 1536 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1537 | stl_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1538 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1539 | 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] | 1540 | /* we remove the notdirty callback only if the code has been |
| 1541 | flushed */ |
| 1542 | if (dirty_flags == 0xff) |
| 1543 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1544 | } |
| 1545 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1546 | static CPUReadMemoryFunc * const error_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1547 | NULL, /* never used */ |
| 1548 | NULL, /* never used */ |
| 1549 | NULL, /* never used */ |
| 1550 | }; |
| 1551 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1552 | static CPUWriteMemoryFunc * const notdirty_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1553 | notdirty_mem_writeb, |
| 1554 | notdirty_mem_writew, |
| 1555 | notdirty_mem_writel, |
| 1556 | }; |
| 1557 | |
| 1558 | /* Generate a debug exception if a watchpoint has been hit. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1559 | 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] | 1560 | { |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1561 | CPUArchState *env = cpu_single_env; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1562 | target_ulong pc, cs_base; |
| 1563 | TranslationBlock *tb; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1564 | target_ulong vaddr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1565 | CPUWatchpoint *wp; |
| 1566 | int cpu_flags; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1567 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1568 | if (env->watchpoint_hit) { |
| 1569 | /* We re-entered the check after replacing the TB. Now raise |
| 1570 | * the debug interrupt so that is will trigger after the |
| 1571 | * current instruction. */ |
| 1572 | cpu_interrupt(env, CPU_INTERRUPT_DEBUG); |
| 1573 | return; |
| 1574 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1575 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1576 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1577 | if ((vaddr == (wp->vaddr & len_mask) || |
| 1578 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
| 1579 | wp->flags |= BP_WATCHPOINT_HIT; |
| 1580 | if (!env->watchpoint_hit) { |
| 1581 | env->watchpoint_hit = wp; |
| 1582 | tb = tb_find_pc(env->mem_io_pc); |
| 1583 | if (!tb) { |
| 1584 | cpu_abort(env, "check_watchpoint: could not find TB for " |
| 1585 | "pc=%p", (void *)env->mem_io_pc); |
| 1586 | } |
David 'Digit' Turner | 3e0677d | 2014-03-07 15:01:06 +0100 | [diff] [blame^] | 1587 | cpu_restore_state(env, env->mem_io_pc); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1588 | tb_phys_invalidate(tb, -1); |
| 1589 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { |
| 1590 | env->exception_index = EXCP_DEBUG; |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1591 | cpu_loop_exit(env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1592 | } else { |
| 1593 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
| 1594 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1595 | cpu_resume_from_signal(env, NULL); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1596 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1597 | } |
| 1598 | } else { |
| 1599 | wp->flags &= ~BP_WATCHPOINT_HIT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1600 | } |
| 1601 | } |
| 1602 | } |
| 1603 | |
| 1604 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
| 1605 | so these check for a hit then pass through to the normal out-of-line |
| 1606 | phys routines. */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1607 | 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] | 1608 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1609 | 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] | 1610 | return ldub_phys(addr); |
| 1611 | } |
| 1612 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1613 | 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] | 1614 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1615 | 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] | 1616 | return lduw_phys(addr); |
| 1617 | } |
| 1618 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1619 | 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] | 1620 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1621 | 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] | 1622 | return ldl_phys(addr); |
| 1623 | } |
| 1624 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1625 | static void watch_mem_writeb(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1626 | uint32_t val) |
| 1627 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1628 | 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] | 1629 | stb_phys(addr, val); |
| 1630 | } |
| 1631 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1632 | static void watch_mem_writew(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1633 | uint32_t val) |
| 1634 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1635 | 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] | 1636 | stw_phys(addr, val); |
| 1637 | } |
| 1638 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1639 | static void watch_mem_writel(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1640 | uint32_t val) |
| 1641 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1642 | 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] | 1643 | stl_phys(addr, val); |
| 1644 | } |
| 1645 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1646 | static CPUReadMemoryFunc * const watch_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1647 | watch_mem_readb, |
| 1648 | watch_mem_readw, |
| 1649 | watch_mem_readl, |
| 1650 | }; |
| 1651 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1652 | static CPUWriteMemoryFunc * const watch_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1653 | watch_mem_writeb, |
| 1654 | watch_mem_writew, |
| 1655 | watch_mem_writel, |
| 1656 | }; |
| 1657 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1658 | 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] | 1659 | unsigned int len) |
| 1660 | { |
| 1661 | uint32_t ret; |
| 1662 | unsigned int idx; |
| 1663 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1664 | idx = SUBPAGE_IDX(addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1665 | #if defined(DEBUG_SUBPAGE) |
| 1666 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
| 1667 | mmio, len, addr, idx); |
| 1668 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1669 | ret = (**mmio->mem_read[idx][len])(mmio->opaque[idx][0][len], |
| 1670 | addr + mmio->region_offset[idx][0][len]); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1671 | |
| 1672 | return ret; |
| 1673 | } |
| 1674 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1675 | 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] | 1676 | uint32_t value, unsigned int len) |
| 1677 | { |
| 1678 | unsigned int idx; |
| 1679 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1680 | idx = SUBPAGE_IDX(addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1681 | #if defined(DEBUG_SUBPAGE) |
| 1682 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", __func__, |
| 1683 | mmio, len, addr, idx, value); |
| 1684 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1685 | (**mmio->mem_write[idx][len])(mmio->opaque[idx][1][len], |
| 1686 | addr + mmio->region_offset[idx][1][len], |
| 1687 | value); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1688 | } |
| 1689 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1690 | static uint32_t subpage_readb (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1691 | { |
| 1692 | #if defined(DEBUG_SUBPAGE) |
| 1693 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1694 | #endif |
| 1695 | |
| 1696 | return subpage_readlen(opaque, addr, 0); |
| 1697 | } |
| 1698 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1699 | static void subpage_writeb (void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1700 | uint32_t value) |
| 1701 | { |
| 1702 | #if defined(DEBUG_SUBPAGE) |
| 1703 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1704 | #endif |
| 1705 | subpage_writelen(opaque, addr, value, 0); |
| 1706 | } |
| 1707 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1708 | static uint32_t subpage_readw (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1709 | { |
| 1710 | #if defined(DEBUG_SUBPAGE) |
| 1711 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1712 | #endif |
| 1713 | |
| 1714 | return subpage_readlen(opaque, addr, 1); |
| 1715 | } |
| 1716 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1717 | static void subpage_writew (void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1718 | uint32_t value) |
| 1719 | { |
| 1720 | #if defined(DEBUG_SUBPAGE) |
| 1721 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1722 | #endif |
| 1723 | subpage_writelen(opaque, addr, value, 1); |
| 1724 | } |
| 1725 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1726 | static uint32_t subpage_readl (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1727 | { |
| 1728 | #if defined(DEBUG_SUBPAGE) |
| 1729 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1730 | #endif |
| 1731 | |
| 1732 | return subpage_readlen(opaque, addr, 2); |
| 1733 | } |
| 1734 | |
| 1735 | static void subpage_writel (void *opaque, |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1736 | hwaddr addr, uint32_t value) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1737 | { |
| 1738 | #if defined(DEBUG_SUBPAGE) |
| 1739 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1740 | #endif |
| 1741 | subpage_writelen(opaque, addr, value, 2); |
| 1742 | } |
| 1743 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1744 | static CPUReadMemoryFunc * const subpage_read[] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1745 | &subpage_readb, |
| 1746 | &subpage_readw, |
| 1747 | &subpage_readl, |
| 1748 | }; |
| 1749 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1750 | static CPUWriteMemoryFunc * const subpage_write[] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1751 | &subpage_writeb, |
| 1752 | &subpage_writew, |
| 1753 | &subpage_writel, |
| 1754 | }; |
| 1755 | |
| 1756 | 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] | 1757 | ram_addr_t memory, ram_addr_t region_offset) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1758 | { |
| 1759 | int idx, eidx; |
| 1760 | unsigned int i; |
| 1761 | |
| 1762 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) |
| 1763 | return -1; |
| 1764 | idx = SUBPAGE_IDX(start); |
| 1765 | eidx = SUBPAGE_IDX(end); |
| 1766 | #if defined(DEBUG_SUBPAGE) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1767 | 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] | 1768 | mmio, start, end, idx, eidx, memory); |
| 1769 | #endif |
| 1770 | memory >>= IO_MEM_SHIFT; |
| 1771 | for (; idx <= eidx; idx++) { |
| 1772 | for (i = 0; i < 4; i++) { |
| 1773 | if (io_mem_read[memory][i]) { |
| 1774 | mmio->mem_read[idx][i] = &io_mem_read[memory][i]; |
| 1775 | mmio->opaque[idx][0][i] = io_mem_opaque[memory]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1776 | mmio->region_offset[idx][0][i] = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1777 | } |
| 1778 | if (io_mem_write[memory][i]) { |
| 1779 | mmio->mem_write[idx][i] = &io_mem_write[memory][i]; |
| 1780 | mmio->opaque[idx][1][i] = io_mem_opaque[memory]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1781 | mmio->region_offset[idx][1][i] = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1782 | } |
| 1783 | } |
| 1784 | } |
| 1785 | |
| 1786 | return 0; |
| 1787 | } |
| 1788 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1789 | static void *subpage_init (hwaddr base, ram_addr_t *phys, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1790 | 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] | 1791 | { |
| 1792 | subpage_t *mmio; |
| 1793 | int subpage_memory; |
| 1794 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1795 | mmio = g_malloc0(sizeof(subpage_t)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1796 | |
| 1797 | mmio->base = base; |
| 1798 | 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] | 1799 | #if defined(DEBUG_SUBPAGE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1800 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
| 1801 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1802 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1803 | *phys = subpage_memory | IO_MEM_SUBPAGE; |
| 1804 | subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory, |
| 1805 | region_offset); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1806 | |
| 1807 | return mmio; |
| 1808 | } |
| 1809 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1810 | static int get_free_io_mem_idx(void) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1811 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1812 | int i; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1813 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1814 | for (i = 0; i<IO_MEM_NB_ENTRIES; i++) |
| 1815 | if (!io_mem_used[i]) { |
| 1816 | io_mem_used[i] = 1; |
| 1817 | return i; |
| 1818 | } |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1819 | 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] | 1820 | return -1; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1821 | } |
| 1822 | |
| 1823 | /* mem_read and mem_write are arrays of functions containing the |
| 1824 | 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] | 1825 | 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] | 1826 | If io_index is non zero, the corresponding io zone is |
| 1827 | modified. If it is zero, a new io zone is allocated. The return |
| 1828 | value can be used with cpu_register_physical_memory(). (-1) is |
| 1829 | returned if error. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1830 | static int cpu_register_io_memory_fixed(int io_index, |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1831 | CPUReadMemoryFunc * const *mem_read, |
| 1832 | CPUWriteMemoryFunc * const *mem_write, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1833 | void *opaque) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1834 | { |
| 1835 | int i, subwidth = 0; |
| 1836 | |
| 1837 | if (io_index <= 0) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1838 | io_index = get_free_io_mem_idx(); |
| 1839 | if (io_index == -1) |
| 1840 | return io_index; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1841 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1842 | io_index >>= IO_MEM_SHIFT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1843 | if (io_index >= IO_MEM_NB_ENTRIES) |
| 1844 | return -1; |
| 1845 | } |
| 1846 | |
| 1847 | for(i = 0;i < 3; i++) { |
| 1848 | if (!mem_read[i] || !mem_write[i]) |
| 1849 | subwidth = IO_MEM_SUBWIDTH; |
| 1850 | io_mem_read[io_index][i] = mem_read[i]; |
| 1851 | io_mem_write[io_index][i] = mem_write[i]; |
| 1852 | } |
| 1853 | io_mem_opaque[io_index] = opaque; |
| 1854 | return (io_index << IO_MEM_SHIFT) | subwidth; |
| 1855 | } |
| 1856 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1857 | int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read, |
| 1858 | CPUWriteMemoryFunc * const *mem_write, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1859 | void *opaque) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1860 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1861 | 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] | 1862 | } |
| 1863 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1864 | void cpu_unregister_io_memory(int io_table_address) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1865 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1866 | int i; |
| 1867 | int io_index = io_table_address >> IO_MEM_SHIFT; |
| 1868 | |
| 1869 | for (i=0;i < 3; i++) { |
| 1870 | io_mem_read[io_index][i] = unassigned_mem_read[i]; |
| 1871 | io_mem_write[io_index][i] = unassigned_mem_write[i]; |
| 1872 | } |
| 1873 | io_mem_opaque[io_index] = NULL; |
| 1874 | io_mem_used[io_index] = 0; |
| 1875 | } |
| 1876 | |
| 1877 | static void io_mem_init(void) |
| 1878 | { |
| 1879 | int i; |
| 1880 | |
| 1881 | cpu_register_io_memory_fixed(IO_MEM_ROM, error_mem_read, unassigned_mem_write, NULL); |
| 1882 | cpu_register_io_memory_fixed(IO_MEM_UNASSIGNED, unassigned_mem_read, unassigned_mem_write, NULL); |
| 1883 | cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read, notdirty_mem_write, NULL); |
| 1884 | for (i=0; i<5; i++) |
| 1885 | io_mem_used[i] = 1; |
| 1886 | |
| 1887 | io_mem_watch = cpu_register_io_memory(watch_mem_read, |
| 1888 | watch_mem_write, NULL); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1889 | } |
| 1890 | |
| 1891 | #endif /* !defined(CONFIG_USER_ONLY) */ |
| 1892 | |
| 1893 | /* physical memory access (slow version, mainly for debug) */ |
| 1894 | #if defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1895 | void cpu_physical_memory_rw(hwaddr addr, void *buf, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1896 | int len, int is_write) |
| 1897 | { |
| 1898 | int l, flags; |
| 1899 | target_ulong page; |
| 1900 | void * p; |
| 1901 | |
| 1902 | while (len > 0) { |
| 1903 | page = addr & TARGET_PAGE_MASK; |
| 1904 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1905 | if (l > len) |
| 1906 | l = len; |
| 1907 | flags = page_get_flags(page); |
| 1908 | if (!(flags & PAGE_VALID)) |
| 1909 | return; |
| 1910 | if (is_write) { |
| 1911 | if (!(flags & PAGE_WRITE)) |
| 1912 | return; |
| 1913 | /* XXX: this code should not depend on lock_user */ |
| 1914 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
| 1915 | /* FIXME - should this return an error rather than just fail? */ |
| 1916 | return; |
| 1917 | memcpy(p, buf, l); |
| 1918 | unlock_user(p, addr, l); |
| 1919 | } else { |
| 1920 | if (!(flags & PAGE_READ)) |
| 1921 | return; |
| 1922 | /* XXX: this code should not depend on lock_user */ |
| 1923 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
| 1924 | /* FIXME - should this return an error rather than just fail? */ |
| 1925 | return; |
| 1926 | memcpy(buf, p, l); |
| 1927 | unlock_user(p, addr, 0); |
| 1928 | } |
| 1929 | len -= l; |
| 1930 | buf += l; |
| 1931 | addr += l; |
| 1932 | } |
| 1933 | } |
| 1934 | |
| 1935 | #else |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 1936 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1937 | static void invalidate_and_set_dirty(hwaddr addr, |
| 1938 | hwaddr length) |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 1939 | { |
| 1940 | if (!cpu_physical_memory_is_dirty(addr)) { |
| 1941 | /* invalidate code */ |
| 1942 | tb_invalidate_phys_page_range(addr, addr + length, 0); |
| 1943 | /* set dirty bit */ |
| 1944 | cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG)); |
| 1945 | } |
| 1946 | } |
| 1947 | |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1948 | void cpu_physical_memory_rw(hwaddr addr, void *buf, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1949 | int len, int is_write) |
| 1950 | { |
| 1951 | int l, io_index; |
| 1952 | uint8_t *ptr; |
| 1953 | uint32_t val; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1954 | hwaddr page; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1955 | unsigned long pd; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1956 | uint8_t* buf8 = (uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1957 | PhysPageDesc *p; |
| 1958 | |
| 1959 | while (len > 0) { |
| 1960 | page = addr & TARGET_PAGE_MASK; |
| 1961 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1962 | if (l > len) |
| 1963 | l = len; |
| 1964 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 1965 | if (!p) { |
| 1966 | pd = IO_MEM_UNASSIGNED; |
| 1967 | } else { |
| 1968 | pd = p->phys_offset; |
| 1969 | } |
| 1970 | |
| 1971 | if (is_write) { |
| 1972 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1973 | hwaddr addr1 = addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1974 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1975 | if (p) |
| 1976 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1977 | /* XXX: could force cpu_single_env to NULL to avoid |
| 1978 | potential bugs */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1979 | if (l >= 4 && ((addr1 & 3) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1980 | /* 32 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1981 | val = ldl_p(buf8); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1982 | 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] | 1983 | l = 4; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1984 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1985 | /* 16 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1986 | val = lduw_p(buf8); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1987 | 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] | 1988 | l = 2; |
| 1989 | } else { |
| 1990 | /* 8 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1991 | val = ldub_p(buf8); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1992 | 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] | 1993 | l = 1; |
| 1994 | } |
| 1995 | } else { |
| 1996 | unsigned long addr1; |
| 1997 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 1998 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1999 | ptr = qemu_get_ram_ptr(addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2000 | memcpy(ptr, buf8, l); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2001 | invalidate_and_set_dirty(addr1, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2002 | } |
| 2003 | } else { |
| 2004 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2005 | !(pd & IO_MEM_ROMD)) { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2006 | hwaddr addr1 = addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2007 | /* I/O case */ |
| 2008 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2009 | if (p) |
| 2010 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
| 2011 | if (l >= 4 && ((addr1 & 3) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2012 | /* 32 bit read access */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2013 | 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] | 2014 | stl_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2015 | l = 4; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2016 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2017 | /* 16 bit read access */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2018 | 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] | 2019 | stw_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2020 | l = 2; |
| 2021 | } else { |
| 2022 | /* 8 bit read access */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2023 | 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] | 2024 | stb_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2025 | l = 1; |
| 2026 | } |
| 2027 | } else { |
| 2028 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2029 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2030 | (addr & ~TARGET_PAGE_MASK); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2031 | memcpy(buf8, ptr, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2032 | } |
| 2033 | } |
| 2034 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2035 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2036 | addr += l; |
| 2037 | } |
| 2038 | } |
| 2039 | |
| 2040 | /* used for ROM loading : can write in RAM and ROM */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2041 | void cpu_physical_memory_write_rom(hwaddr addr, |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2042 | const void *buf, int len) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2043 | { |
| 2044 | int l; |
| 2045 | uint8_t *ptr; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2046 | hwaddr page; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2047 | unsigned long pd; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2048 | const uint8_t* buf8 = (const uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2049 | PhysPageDesc *p; |
| 2050 | |
| 2051 | while (len > 0) { |
| 2052 | page = addr & TARGET_PAGE_MASK; |
| 2053 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2054 | if (l > len) |
| 2055 | l = len; |
| 2056 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 2057 | if (!p) { |
| 2058 | pd = IO_MEM_UNASSIGNED; |
| 2059 | } else { |
| 2060 | pd = p->phys_offset; |
| 2061 | } |
| 2062 | |
| 2063 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM && |
| 2064 | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
| 2065 | !(pd & IO_MEM_ROMD)) { |
| 2066 | /* do nothing */ |
| 2067 | } else { |
| 2068 | unsigned long addr1; |
| 2069 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2070 | /* ROM/RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2071 | ptr = qemu_get_ram_ptr(addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2072 | memcpy(ptr, buf8, l); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2073 | invalidate_and_set_dirty(addr1, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2074 | } |
| 2075 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2076 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2077 | addr += l; |
| 2078 | } |
| 2079 | } |
| 2080 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2081 | typedef struct { |
| 2082 | void *buffer; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2083 | hwaddr addr; |
| 2084 | hwaddr len; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2085 | } BounceBuffer; |
| 2086 | |
| 2087 | static BounceBuffer bounce; |
| 2088 | |
| 2089 | typedef struct MapClient { |
| 2090 | void *opaque; |
| 2091 | void (*callback)(void *opaque); |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2092 | QLIST_ENTRY(MapClient) link; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2093 | } MapClient; |
| 2094 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2095 | static QLIST_HEAD(map_client_list, MapClient) map_client_list |
| 2096 | = QLIST_HEAD_INITIALIZER(map_client_list); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2097 | |
| 2098 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
| 2099 | { |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2100 | MapClient *client = g_malloc(sizeof(*client)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2101 | |
| 2102 | client->opaque = opaque; |
| 2103 | client->callback = callback; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2104 | QLIST_INSERT_HEAD(&map_client_list, client, link); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2105 | return client; |
| 2106 | } |
| 2107 | |
| 2108 | void cpu_unregister_map_client(void *_client) |
| 2109 | { |
| 2110 | MapClient *client = (MapClient *)_client; |
| 2111 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2112 | QLIST_REMOVE(client, link); |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2113 | g_free(client); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2114 | } |
| 2115 | |
| 2116 | static void cpu_notify_map_clients(void) |
| 2117 | { |
| 2118 | MapClient *client; |
| 2119 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2120 | while (!QLIST_EMPTY(&map_client_list)) { |
| 2121 | client = QLIST_FIRST(&map_client_list); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2122 | client->callback(client->opaque); |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2123 | QLIST_REMOVE(client, link); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2124 | } |
| 2125 | } |
| 2126 | |
| 2127 | /* Map a physical memory region into a host virtual address. |
| 2128 | * May map a subset of the requested range, given by and returned in *plen. |
| 2129 | * May return NULL if resources needed to perform the mapping are exhausted. |
| 2130 | * Use only for reads OR writes - not for read-modify-write operations. |
| 2131 | * Use cpu_register_map_client() to know when retrying the map operation is |
| 2132 | * likely to succeed. |
| 2133 | */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2134 | void *cpu_physical_memory_map(hwaddr addr, |
| 2135 | hwaddr *plen, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2136 | int is_write) |
| 2137 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2138 | hwaddr len = *plen; |
| 2139 | hwaddr done = 0; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2140 | int l; |
| 2141 | uint8_t *ret = NULL; |
| 2142 | uint8_t *ptr; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2143 | hwaddr page; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2144 | unsigned long pd; |
| 2145 | PhysPageDesc *p; |
| 2146 | unsigned long addr1; |
| 2147 | |
| 2148 | while (len > 0) { |
| 2149 | page = addr & TARGET_PAGE_MASK; |
| 2150 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2151 | if (l > len) |
| 2152 | l = len; |
| 2153 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 2154 | if (!p) { |
| 2155 | pd = IO_MEM_UNASSIGNED; |
| 2156 | } else { |
| 2157 | pd = p->phys_offset; |
| 2158 | } |
| 2159 | |
| 2160 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2161 | if (done || bounce.buffer) { |
| 2162 | break; |
| 2163 | } |
| 2164 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
| 2165 | bounce.addr = addr; |
| 2166 | bounce.len = l; |
| 2167 | if (!is_write) { |
| 2168 | cpu_physical_memory_rw(addr, bounce.buffer, l, 0); |
| 2169 | } |
| 2170 | ptr = bounce.buffer; |
| 2171 | } else { |
| 2172 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2173 | ptr = qemu_get_ram_ptr(addr1); |
| 2174 | } |
| 2175 | if (!done) { |
| 2176 | ret = ptr; |
| 2177 | } else if (ret + done != ptr) { |
| 2178 | break; |
| 2179 | } |
| 2180 | |
| 2181 | len -= l; |
| 2182 | addr += l; |
| 2183 | done += l; |
| 2184 | } |
| 2185 | *plen = done; |
| 2186 | return ret; |
| 2187 | } |
| 2188 | |
| 2189 | /* Unmaps a memory region previously mapped by cpu_physical_memory_map(). |
| 2190 | * Will also mark the memory as dirty if is_write == 1. access_len gives |
| 2191 | * the amount of memory that was actually read or written by the caller. |
| 2192 | */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2193 | void cpu_physical_memory_unmap(void *buffer, hwaddr len, |
| 2194 | int is_write, hwaddr access_len) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2195 | { |
| 2196 | if (buffer != bounce.buffer) { |
| 2197 | if (is_write) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2198 | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2199 | while (access_len) { |
| 2200 | unsigned l; |
| 2201 | l = TARGET_PAGE_SIZE; |
| 2202 | if (l > access_len) |
| 2203 | l = access_len; |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2204 | invalidate_and_set_dirty(addr1, l); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2205 | addr1 += l; |
| 2206 | access_len -= l; |
| 2207 | } |
| 2208 | } |
| 2209 | return; |
| 2210 | } |
| 2211 | if (is_write) { |
| 2212 | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); |
| 2213 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2214 | qemu_vfree(bounce.buffer); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2215 | bounce.buffer = NULL; |
| 2216 | cpu_notify_map_clients(); |
| 2217 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2218 | |
| 2219 | /* warning: addr must be aligned */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2220 | uint32_t ldl_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2221 | { |
| 2222 | int io_index; |
| 2223 | uint8_t *ptr; |
| 2224 | uint32_t val; |
| 2225 | unsigned long pd; |
| 2226 | PhysPageDesc *p; |
| 2227 | |
| 2228 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2229 | if (!p) { |
| 2230 | pd = IO_MEM_UNASSIGNED; |
| 2231 | } else { |
| 2232 | pd = p->phys_offset; |
| 2233 | } |
| 2234 | |
| 2235 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2236 | !(pd & IO_MEM_ROMD)) { |
| 2237 | /* I/O case */ |
| 2238 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2239 | if (p) |
| 2240 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2241 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
| 2242 | } else { |
| 2243 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2244 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2245 | (addr & ~TARGET_PAGE_MASK); |
| 2246 | val = ldl_p(ptr); |
| 2247 | } |
| 2248 | return val; |
| 2249 | } |
| 2250 | |
| 2251 | /* warning: addr must be aligned */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2252 | uint64_t ldq_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2253 | { |
| 2254 | int io_index; |
| 2255 | uint8_t *ptr; |
| 2256 | uint64_t val; |
| 2257 | unsigned long pd; |
| 2258 | PhysPageDesc *p; |
| 2259 | |
| 2260 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2261 | if (!p) { |
| 2262 | pd = IO_MEM_UNASSIGNED; |
| 2263 | } else { |
| 2264 | pd = p->phys_offset; |
| 2265 | } |
| 2266 | |
| 2267 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2268 | !(pd & IO_MEM_ROMD)) { |
| 2269 | /* I/O case */ |
| 2270 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2271 | if (p) |
| 2272 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2273 | #ifdef TARGET_WORDS_BIGENDIAN |
| 2274 | val = (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr) << 32; |
| 2275 | val |= io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4); |
| 2276 | #else |
| 2277 | val = io_mem_read[io_index][2](io_mem_opaque[io_index], addr); |
| 2278 | val |= (uint64_t)io_mem_read[io_index][2](io_mem_opaque[io_index], addr + 4) << 32; |
| 2279 | #endif |
| 2280 | } else { |
| 2281 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2282 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2283 | (addr & ~TARGET_PAGE_MASK); |
| 2284 | val = ldq_p(ptr); |
| 2285 | } |
| 2286 | return val; |
| 2287 | } |
| 2288 | |
| 2289 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2290 | uint32_t ldub_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2291 | { |
| 2292 | uint8_t val; |
| 2293 | cpu_physical_memory_read(addr, &val, 1); |
| 2294 | return val; |
| 2295 | } |
| 2296 | |
| 2297 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2298 | uint32_t lduw_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2299 | { |
| 2300 | uint16_t val; |
| 2301 | cpu_physical_memory_read(addr, (uint8_t *)&val, 2); |
| 2302 | return tswap16(val); |
| 2303 | } |
| 2304 | |
| 2305 | /* warning: addr must be aligned. The ram page is not masked as dirty |
| 2306 | and the code inside is not invalidated. It is useful if the dirty |
| 2307 | bits are used to track modified PTEs */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2308 | void stl_phys_notdirty(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2309 | { |
| 2310 | int io_index; |
| 2311 | uint8_t *ptr; |
| 2312 | unsigned long pd; |
| 2313 | PhysPageDesc *p; |
| 2314 | |
| 2315 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2316 | if (!p) { |
| 2317 | pd = IO_MEM_UNASSIGNED; |
| 2318 | } else { |
| 2319 | pd = p->phys_offset; |
| 2320 | } |
| 2321 | |
| 2322 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2323 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2324 | if (p) |
| 2325 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2326 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 2327 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2328 | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2329 | ptr = qemu_get_ram_ptr(addr1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2330 | stl_p(ptr, val); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2331 | |
| 2332 | if (unlikely(in_migration)) { |
| 2333 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 2334 | /* invalidate code */ |
| 2335 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
| 2336 | /* set dirty bit */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2337 | cpu_physical_memory_set_dirty_flags( |
| 2338 | addr1, (0xff & ~CODE_DIRTY_FLAG)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2339 | } |
| 2340 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2341 | } |
| 2342 | } |
| 2343 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2344 | void stq_phys_notdirty(hwaddr addr, uint64_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2345 | { |
| 2346 | int io_index; |
| 2347 | uint8_t *ptr; |
| 2348 | unsigned long pd; |
| 2349 | PhysPageDesc *p; |
| 2350 | |
| 2351 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2352 | if (!p) { |
| 2353 | pd = IO_MEM_UNASSIGNED; |
| 2354 | } else { |
| 2355 | pd = p->phys_offset; |
| 2356 | } |
| 2357 | |
| 2358 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2359 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2360 | if (p) |
| 2361 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2362 | #ifdef TARGET_WORDS_BIGENDIAN |
| 2363 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val >> 32); |
| 2364 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val); |
| 2365 | #else |
| 2366 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 2367 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr + 4, val >> 32); |
| 2368 | #endif |
| 2369 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2370 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2371 | (addr & ~TARGET_PAGE_MASK); |
| 2372 | stq_p(ptr, val); |
| 2373 | } |
| 2374 | } |
| 2375 | |
| 2376 | /* warning: addr must be aligned */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2377 | void stl_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2378 | { |
| 2379 | int io_index; |
| 2380 | uint8_t *ptr; |
| 2381 | unsigned long pd; |
| 2382 | PhysPageDesc *p; |
| 2383 | |
| 2384 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2385 | if (!p) { |
| 2386 | pd = IO_MEM_UNASSIGNED; |
| 2387 | } else { |
| 2388 | pd = p->phys_offset; |
| 2389 | } |
| 2390 | |
| 2391 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2392 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2393 | if (p) |
| 2394 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2395 | io_mem_write[io_index][2](io_mem_opaque[io_index], addr, val); |
| 2396 | } else { |
| 2397 | unsigned long addr1; |
| 2398 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2399 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2400 | ptr = qemu_get_ram_ptr(addr1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2401 | stl_p(ptr, val); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2402 | invalidate_and_set_dirty(addr1, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2403 | } |
| 2404 | } |
| 2405 | |
| 2406 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2407 | void stb_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2408 | { |
| 2409 | uint8_t v = val; |
| 2410 | cpu_physical_memory_write(addr, &v, 1); |
| 2411 | } |
| 2412 | |
| 2413 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2414 | void stw_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2415 | { |
| 2416 | uint16_t v = tswap16(val); |
| 2417 | cpu_physical_memory_write(addr, (const uint8_t *)&v, 2); |
| 2418 | } |
| 2419 | |
| 2420 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2421 | void stq_phys(hwaddr addr, uint64_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2422 | { |
| 2423 | val = tswap64(val); |
| 2424 | cpu_physical_memory_write(addr, (const uint8_t *)&val, 8); |
| 2425 | } |
| 2426 | |
| 2427 | #endif |
| 2428 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2429 | /* virtual memory access for debug (includes writing to ROM) */ |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 2430 | int cpu_memory_rw_debug(CPUOldState *env, target_ulong addr, |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2431 | void *buf, int len, int is_write) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2432 | { |
| 2433 | int l; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2434 | hwaddr phys_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2435 | target_ulong page; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2436 | uint8_t* buf8 = (uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2437 | |
| 2438 | while (len > 0) { |
| 2439 | page = addr & TARGET_PAGE_MASK; |
| 2440 | phys_addr = cpu_get_phys_page_debug(env, page); |
| 2441 | /* if no physical page mapped, return an error */ |
| 2442 | if (phys_addr == -1) |
| 2443 | return -1; |
| 2444 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2445 | if (l > len) |
| 2446 | l = len; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2447 | phys_addr += (addr & ~TARGET_PAGE_MASK); |
| 2448 | #if !defined(CONFIG_USER_ONLY) |
| 2449 | if (is_write) |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2450 | cpu_physical_memory_write_rom(phys_addr, buf8, l); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2451 | else |
| 2452 | #endif |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2453 | 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] | 2454 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2455 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2456 | addr += l; |
| 2457 | } |
| 2458 | return 0; |
| 2459 | } |