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 | 6234c0b | 2014-03-14 17:05:26 +0100 | [diff] [blame] | 40 | #include "hw/qdev.h" |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 41 | #include "hw/xen/xen.h" |
David 'Digit' Turner | 8456913 | 2013-12-13 17:34:07 +0100 | [diff] [blame] | 42 | #include "qemu/osdep.h" |
David 'Digit' Turner | 4ab1225 | 2014-03-24 11:29:53 +0100 | [diff] [blame] | 43 | #include "qemu/tls.h" |
David 'Digit' Turner | 34c48ff | 2013-12-15 00:25:03 +0100 | [diff] [blame] | 44 | #include "sysemu/kvm.h" |
David 'Digit' Turner | 3dc53fc | 2014-01-17 01:23:40 +0100 | [diff] [blame] | 45 | #include "exec/cputlb.h" |
David 'Digit' Turner | e1e03df | 2013-12-15 00:42:21 +0100 | [diff] [blame] | 46 | #include "exec/hax.h" |
David 'Digit' Turner | 7a78db7 | 2013-12-14 11:46:01 +0100 | [diff] [blame] | 47 | #include "qemu/timer.h" |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 48 | #if defined(CONFIG_USER_ONLY) |
| 49 | #include <qemu.h> |
| 50 | #endif |
| 51 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 52 | //#define DEBUG_SUBPAGE |
| 53 | |
| 54 | #if !defined(CONFIG_USER_ONLY) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 55 | int phys_ram_fd; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 56 | static int in_migration; |
| 57 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 58 | 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] | 59 | #endif |
| 60 | |
David 'Digit' Turner | 4ab1225 | 2014-03-24 11:29:53 +0100 | [diff] [blame] | 61 | struct CPUTailQ cpus = QTAILQ_HEAD_INITIALIZER(cpus); |
| 62 | DEFINE_TLS(CPUState *, current_cpu); |
| 63 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 64 | /* 0 = Do not count executed instructions. |
| 65 | 1 = Precise instruction counting. |
| 66 | 2 = Adaptive rate instruction counting. */ |
| 67 | int use_icount = 0; |
| 68 | /* Current instruction counter. While executing translated code this may |
| 69 | include some instructions that have not yet been executed. */ |
| 70 | int64_t qemu_icount; |
| 71 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 72 | #if !defined(CONFIG_USER_ONLY) |
| 73 | static void io_mem_init(void); |
| 74 | |
| 75 | /* io memory support */ |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 76 | CPUWriteMemoryFunc *_io_mem_write[IO_MEM_NB_ENTRIES][4]; |
| 77 | CPUReadMemoryFunc *_io_mem_read[IO_MEM_NB_ENTRIES][4]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 78 | void *io_mem_opaque[IO_MEM_NB_ENTRIES]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 79 | static char io_mem_used[IO_MEM_NB_ENTRIES]; |
David 'Digit' Turner | 3dc53fc | 2014-01-17 01:23:40 +0100 | [diff] [blame] | 80 | int io_mem_watch; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 81 | #endif |
| 82 | |
| 83 | /* log support */ |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 84 | #ifdef WIN32 |
| 85 | static const char *logfilename = "qemu.log"; |
| 86 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 87 | static const char *logfilename = "/tmp/qemu.log"; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 88 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 89 | FILE *logfile; |
| 90 | int loglevel; |
| 91 | static int log_append = 0; |
| 92 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 93 | #define SUBPAGE_IDX(addr) ((addr) & ~TARGET_PAGE_MASK) |
| 94 | typedef struct subpage_t { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 95 | hwaddr base; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 96 | CPUReadMemoryFunc **mem_read[TARGET_PAGE_SIZE][4]; |
| 97 | CPUWriteMemoryFunc **mem_write[TARGET_PAGE_SIZE][4]; |
| 98 | void *opaque[TARGET_PAGE_SIZE][2][4]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 99 | 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] | 100 | } subpage_t; |
| 101 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 102 | /* Must be called before using the QEMU cpus. 'tb_size' is the size |
| 103 | (in bytes) allocated to the translation buffer. Zero means default |
| 104 | size. */ |
| 105 | void cpu_exec_init_all(unsigned long tb_size) |
| 106 | { |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame] | 107 | //cpu_gen_init(); |
| 108 | //code_gen_alloc(tb_size); |
| 109 | //code_gen_ptr = code_gen_buffer; |
| 110 | //page_init(); |
| 111 | tcg_exec_init(tb_size); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 112 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 113 | qemu_mutex_init(&ram_list.mutex); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 114 | io_mem_init(); |
| 115 | #endif |
| 116 | } |
| 117 | |
| 118 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
| 119 | |
| 120 | #define CPU_COMMON_SAVE_VERSION 1 |
| 121 | |
| 122 | static void cpu_common_save(QEMUFile *f, void *opaque) |
| 123 | { |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 124 | CPUOldState *env = opaque; |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 125 | CPUState *cpu = ENV_GET_CPU(env); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 126 | |
David 'Digit' Turner | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 127 | cpu_synchronize_state(cpu, 0); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 128 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 129 | qemu_put_be32s(f, &cpu->halted); |
| 130 | qemu_put_be32s(f, &cpu->interrupt_request); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 131 | } |
| 132 | |
| 133 | static int cpu_common_load(QEMUFile *f, void *opaque, int version_id) |
| 134 | { |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 135 | CPUOldState *env = opaque; |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 136 | CPUState *cpu = ENV_GET_CPU(env); |
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 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 141 | qemu_get_be32s(f, &cpu->halted); |
| 142 | qemu_get_be32s(f, &cpu->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. */ |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 145 | cpu->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 | e36a683 | 2014-03-25 18:02:39 +0100 | [diff] [blame] | 147 | cpu_synchronize_state(cpu, 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 | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 153 | CPUState *qemu_get_cpu(int cpu_index) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 154 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 155 | CPUState *cpu; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 156 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 157 | CPU_FOREACH(cpu) { |
| 158 | if (cpu->cpu_index == cpu_index) |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 159 | return cpu; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 160 | } |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 161 | return NULL; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 162 | } |
| 163 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 164 | void cpu_exec_init(CPUArchState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 165 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 166 | CPUState *cpu = ENV_GET_CPU(env); |
| 167 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 168 | #if defined(CONFIG_USER_ONLY) |
| 169 | cpu_list_lock(); |
| 170 | #endif |
David 'Digit' Turner | 4ab1225 | 2014-03-24 11:29:53 +0100 | [diff] [blame] | 171 | // Compute CPU index from list position. |
| 172 | int cpu_index = 0; |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 173 | CPUState *cpu1; |
| 174 | CPU_FOREACH(cpu1) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 175 | cpu_index++; |
| 176 | } |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 177 | cpu->cpu_index = cpu_index; |
| 178 | QTAILQ_INSERT_TAIL(&cpus, cpu, node); |
David 'Digit' Turner | 4ab1225 | 2014-03-24 11:29:53 +0100 | [diff] [blame] | 179 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 180 | cpu->numa_node = 0; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 181 | QTAILQ_INIT(&env->breakpoints); |
| 182 | QTAILQ_INIT(&env->watchpoints); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 183 | #if defined(CONFIG_USER_ONLY) |
| 184 | cpu_list_unlock(); |
| 185 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 186 | #if defined(CPU_SAVE_VERSION) && !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 5cb5c0b | 2014-02-17 16:04:03 +0100 | [diff] [blame] | 187 | register_savevm(NULL, |
| 188 | "cpu_common", |
| 189 | cpu_index, |
| 190 | CPU_COMMON_SAVE_VERSION, |
| 191 | cpu_common_save, |
| 192 | cpu_common_load, |
| 193 | env); |
| 194 | register_savevm(NULL, |
| 195 | "cpu", |
| 196 | cpu_index, |
| 197 | CPU_SAVE_VERSION, |
| 198 | cpu_save, |
| 199 | cpu_load, |
| 200 | env); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 201 | #endif |
| 202 | } |
| 203 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 204 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 205 | static void breakpoint_invalidate(CPUArchState *env, target_ulong pc) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 206 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 207 | hwaddr addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 208 | target_ulong pd; |
| 209 | ram_addr_t ram_addr; |
| 210 | PhysPageDesc *p; |
| 211 | |
| 212 | addr = cpu_get_phys_page_debug(env, pc); |
| 213 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 214 | if (!p) { |
| 215 | pd = IO_MEM_UNASSIGNED; |
| 216 | } else { |
| 217 | pd = p->phys_offset; |
| 218 | } |
| 219 | ram_addr = (pd & TARGET_PAGE_MASK) | (pc & ~TARGET_PAGE_MASK); |
| 220 | tb_invalidate_phys_page_range(ram_addr, ram_addr + 1, 0); |
| 221 | } |
| 222 | #endif |
| 223 | |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 224 | #if defined(CONFIG_USER_ONLY) |
| 225 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
| 226 | |
| 227 | { |
| 228 | } |
| 229 | |
| 230 | int cpu_watchpoint_insert(CPUArchState *env, target_ulong addr, target_ulong len, |
| 231 | int flags, CPUWatchpoint **watchpoint) |
| 232 | { |
| 233 | return -ENOSYS; |
| 234 | } |
| 235 | #else |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 236 | /* Add a watchpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 237 | 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] | 238 | int flags, CPUWatchpoint **watchpoint) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 239 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 240 | target_ulong len_mask = ~(len - 1); |
| 241 | CPUWatchpoint *wp; |
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 | /* sanity checks: allow power-of-2 lengths, deny unaligned watchpoints */ |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 244 | if ((len & (len - 1)) || (addr & ~len_mask) || |
| 245 | len == 0 || len > TARGET_PAGE_SIZE) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 246 | fprintf(stderr, "qemu: tried to set invalid watchpoint at " |
| 247 | TARGET_FMT_lx ", len=" TARGET_FMT_lu "\n", addr, len); |
| 248 | return -EINVAL; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 249 | } |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 250 | wp = g_malloc(sizeof(*wp)); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 251 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 252 | wp->vaddr = addr; |
| 253 | wp->len_mask = len_mask; |
| 254 | wp->flags = flags; |
| 255 | |
| 256 | /* keep all GDB-injected watchpoints in front */ |
| 257 | if (flags & BP_GDB) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 258 | QTAILQ_INSERT_HEAD(&env->watchpoints, wp, entry); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 259 | else |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 260 | QTAILQ_INSERT_TAIL(&env->watchpoints, wp, entry); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 261 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 262 | tlb_flush_page(env, addr); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 263 | |
| 264 | if (watchpoint) |
| 265 | *watchpoint = wp; |
| 266 | return 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 267 | } |
| 268 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 269 | /* Remove a specific watchpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 270 | 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] | 271 | int flags) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 272 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 273 | target_ulong len_mask = ~(len - 1); |
| 274 | CPUWatchpoint *wp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 275 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 276 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 277 | if (addr == wp->vaddr && len_mask == wp->len_mask |
| 278 | && flags == (wp->flags & ~BP_WATCHPOINT_HIT)) { |
| 279 | cpu_watchpoint_remove_by_ref(env, wp); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 280 | return 0; |
| 281 | } |
| 282 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 283 | return -ENOENT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 284 | } |
| 285 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 286 | /* Remove a specific watchpoint by reference. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 287 | void cpu_watchpoint_remove_by_ref(CPUArchState *env, CPUWatchpoint *watchpoint) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 288 | { |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 289 | QTAILQ_REMOVE(&env->watchpoints, watchpoint, entry); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 290 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 291 | tlb_flush_page(env, watchpoint->vaddr); |
| 292 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 293 | g_free(watchpoint); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 294 | } |
| 295 | |
| 296 | /* Remove all matching watchpoints. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 297 | void cpu_watchpoint_remove_all(CPUArchState *env, int mask) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 298 | { |
| 299 | CPUWatchpoint *wp, *next; |
| 300 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 301 | QTAILQ_FOREACH_SAFE(wp, &env->watchpoints, entry, next) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 302 | if (wp->flags & mask) |
| 303 | cpu_watchpoint_remove_by_ref(env, wp); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 304 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 305 | } |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 306 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 307 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 308 | /* Add a breakpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 309 | int cpu_breakpoint_insert(CPUArchState *env, target_ulong pc, int flags, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 310 | CPUBreakpoint **breakpoint) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 311 | { |
| 312 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 313 | CPUBreakpoint *bp; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 314 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 315 | bp = g_malloc(sizeof(*bp)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 316 | |
| 317 | bp->pc = pc; |
| 318 | bp->flags = flags; |
| 319 | |
| 320 | /* keep all GDB-injected breakpoints in front */ |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 321 | if (flags & BP_GDB) { |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 322 | QTAILQ_INSERT_HEAD(&env->breakpoints, bp, entry); |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 323 | } else { |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 324 | QTAILQ_INSERT_TAIL(&env->breakpoints, bp, entry); |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 325 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 326 | |
| 327 | breakpoint_invalidate(env, pc); |
| 328 | |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 329 | if (breakpoint) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 330 | *breakpoint = bp; |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 331 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 332 | return 0; |
| 333 | #else |
| 334 | return -ENOSYS; |
| 335 | #endif |
| 336 | } |
| 337 | |
| 338 | /* Remove a specific breakpoint. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 339 | int cpu_breakpoint_remove(CPUArchState *env, target_ulong pc, int flags) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 340 | { |
| 341 | #if defined(TARGET_HAS_ICE) |
| 342 | CPUBreakpoint *bp; |
| 343 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 344 | QTAILQ_FOREACH(bp, &env->breakpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 345 | if (bp->pc == pc && bp->flags == flags) { |
| 346 | cpu_breakpoint_remove_by_ref(env, bp); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 347 | return 0; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 348 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 349 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 350 | return -ENOENT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 351 | #else |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 352 | return -ENOSYS; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 353 | #endif |
| 354 | } |
| 355 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 356 | /* Remove a specific breakpoint by reference. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 357 | 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] | 358 | { |
| 359 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 360 | QTAILQ_REMOVE(&env->breakpoints, breakpoint, entry); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 361 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 362 | breakpoint_invalidate(env, breakpoint->pc); |
| 363 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 364 | g_free(breakpoint); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 365 | #endif |
| 366 | } |
| 367 | |
| 368 | /* Remove all matching breakpoints. */ |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 369 | void cpu_breakpoint_remove_all(CPUArchState *env, int mask) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 370 | { |
| 371 | #if defined(TARGET_HAS_ICE) |
| 372 | CPUBreakpoint *bp, *next; |
| 373 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 374 | QTAILQ_FOREACH_SAFE(bp, &env->breakpoints, entry, next) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 375 | if (bp->flags & mask) |
| 376 | cpu_breakpoint_remove_by_ref(env, bp); |
| 377 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 378 | #endif |
| 379 | } |
| 380 | |
| 381 | /* enable or disable single step mode. EXCP_DEBUG is returned by the |
| 382 | CPU loop after each instruction */ |
David 'Digit' Turner | fed223d | 2014-03-24 17:42:47 +0100 | [diff] [blame] | 383 | void cpu_single_step(CPUState *cpu, int enabled) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 384 | { |
| 385 | #if defined(TARGET_HAS_ICE) |
David 'Digit' Turner | fed223d | 2014-03-24 17:42:47 +0100 | [diff] [blame] | 386 | if (cpu->singlestep_enabled != enabled) { |
| 387 | cpu->singlestep_enabled = enabled; |
David 'Digit' Turner | 8b87a1d | 2014-03-14 16:44:00 +0100 | [diff] [blame] | 388 | if (kvm_enabled()) { |
David 'Digit' Turner | fed223d | 2014-03-24 17:42:47 +0100 | [diff] [blame] | 389 | kvm_update_guest_debug(cpu->env_ptr, 0); |
David 'Digit' Turner | 8b87a1d | 2014-03-14 16:44:00 +0100 | [diff] [blame] | 390 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 391 | /* must flush all the translated code to avoid inconsistencies */ |
| 392 | /* XXX: only flush what is necessary */ |
David 'Digit' Turner | fed223d | 2014-03-24 17:42:47 +0100 | [diff] [blame] | 393 | tb_flush(cpu->env_ptr); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 394 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 395 | } |
| 396 | #endif |
| 397 | } |
| 398 | |
| 399 | /* enable or disable low levels log */ |
| 400 | void cpu_set_log(int log_flags) |
| 401 | { |
| 402 | loglevel = log_flags; |
| 403 | if (loglevel && !logfile) { |
| 404 | logfile = fopen(logfilename, log_append ? "a" : "w"); |
| 405 | if (!logfile) { |
| 406 | perror(logfilename); |
Iliyan Malchev | 4a2c9dd | 2012-04-02 08:20:56 -0700 | [diff] [blame] | 407 | exit(1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 408 | } |
| 409 | #if !defined(CONFIG_SOFTMMU) |
| 410 | /* must avoid mmap() usage of glibc by setting a buffer "by hand" */ |
| 411 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 412 | static char logfile_buf[4096]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 413 | setvbuf(logfile, logfile_buf, _IOLBF, sizeof(logfile_buf)); |
| 414 | } |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 415 | #elif !defined(_WIN32) |
| 416 | /* 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] | 417 | setvbuf(logfile, NULL, _IOLBF, 0); |
| 418 | #endif |
| 419 | log_append = 1; |
| 420 | } |
| 421 | if (!loglevel && logfile) { |
| 422 | fclose(logfile); |
| 423 | logfile = NULL; |
| 424 | } |
| 425 | } |
| 426 | |
| 427 | void cpu_set_log_filename(const char *filename) |
| 428 | { |
| 429 | logfilename = strdup(filename); |
| 430 | if (logfile) { |
| 431 | fclose(logfile); |
| 432 | logfile = NULL; |
| 433 | } |
| 434 | cpu_set_log(loglevel); |
| 435 | } |
| 436 | |
David 'Digit' Turner | 3e0677d | 2014-03-07 15:01:06 +0100 | [diff] [blame] | 437 | void cpu_unlink_tb(CPUOldState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 438 | { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 439 | /* FIXME: TB unchaining isn't SMP safe. For now just ignore the |
| 440 | problem and hope the cpu will stop of its own accord. For userspace |
| 441 | emulation this often isn't actually as bad as it sounds. Often |
| 442 | signals are used primarily to interrupt blocking syscalls. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 443 | TranslationBlock *tb; |
| 444 | static spinlock_t interrupt_lock = SPIN_LOCK_UNLOCKED; |
| 445 | |
David 'Digit' Turner | 795bb19 | 2011-05-09 15:20:22 +0200 | [diff] [blame] | 446 | spin_lock(&interrupt_lock); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 447 | tb = env->current_tb; |
| 448 | /* if the cpu is currently executing code, we must unlink it and |
| 449 | all the potentially executing TB */ |
David 'Digit' Turner | 795bb19 | 2011-05-09 15:20:22 +0200 | [diff] [blame] | 450 | if (tb) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 451 | env->current_tb = NULL; |
| 452 | tb_reset_jump_recursive(tb); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 453 | } |
David 'Digit' Turner | 795bb19 | 2011-05-09 15:20:22 +0200 | [diff] [blame] | 454 | spin_unlock(&interrupt_lock); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 455 | } |
| 456 | |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 457 | void cpu_reset_interrupt(CPUState *cpu, int mask) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 458 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 459 | cpu->interrupt_request &= ~mask; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 460 | } |
| 461 | |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 462 | void cpu_exit(CPUState *cpu) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 463 | { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 464 | cpu->exit_request = 1; |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 465 | cpu_unlink_tb(cpu->env_ptr); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 466 | } |
| 467 | |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 468 | void cpu_abort(CPUArchState *env, const char *fmt, ...) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 469 | { |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 470 | CPUState *cpu = ENV_GET_CPU(env); |
| 471 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 472 | va_list ap; |
| 473 | va_list ap2; |
| 474 | |
| 475 | va_start(ap, fmt); |
| 476 | va_copy(ap2, ap); |
| 477 | fprintf(stderr, "qemu: fatal: "); |
| 478 | vfprintf(stderr, fmt, ap); |
| 479 | fprintf(stderr, "\n"); |
| 480 | #ifdef TARGET_I386 |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 481 | cpu_dump_state(cpu, stderr, fprintf, X86_DUMP_FPU | X86_DUMP_CCOP); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 482 | #else |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 483 | cpu_dump_state(cpu, stderr, fprintf, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 484 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 485 | if (qemu_log_enabled()) { |
| 486 | qemu_log("qemu: fatal: "); |
| 487 | qemu_log_vprintf(fmt, ap2); |
| 488 | qemu_log("\n"); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 489 | #ifdef TARGET_I386 |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 490 | log_cpu_state(cpu, X86_DUMP_FPU | X86_DUMP_CCOP); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 491 | #else |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 492 | log_cpu_state(cpu, 0); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 493 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 494 | qemu_log_flush(); |
| 495 | qemu_log_close(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 496 | } |
| 497 | va_end(ap2); |
| 498 | va_end(ap); |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 499 | #if defined(CONFIG_USER_ONLY) |
| 500 | { |
| 501 | struct sigaction act; |
| 502 | sigfillset(&act.sa_mask); |
| 503 | act.sa_handler = SIG_DFL; |
| 504 | sigaction(SIGABRT, &act, NULL); |
| 505 | } |
| 506 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 507 | abort(); |
| 508 | } |
| 509 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 510 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 511 | static RAMBlock *qemu_get_ram_block(ram_addr_t addr) |
| 512 | { |
| 513 | RAMBlock *block; |
| 514 | |
| 515 | /* The list is protected by the iothread lock here. */ |
| 516 | block = ram_list.mru_block; |
| 517 | if (block && addr - block->offset < block->length) { |
| 518 | goto found; |
| 519 | } |
| 520 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 521 | if (addr - block->offset < block->length) { |
| 522 | goto found; |
| 523 | } |
| 524 | } |
| 525 | |
| 526 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 527 | abort(); |
| 528 | |
| 529 | found: |
| 530 | ram_list.mru_block = block; |
| 531 | return block; |
| 532 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 533 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 534 | /* 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] | 535 | void cpu_physical_memory_reset_dirty(ram_addr_t start, ram_addr_t end, |
| 536 | int dirty_flags) |
| 537 | { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 538 | unsigned long length, start1; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 539 | int i; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 540 | |
| 541 | start &= TARGET_PAGE_MASK; |
| 542 | end = TARGET_PAGE_ALIGN(end); |
| 543 | |
| 544 | length = end - start; |
| 545 | if (length == 0) |
| 546 | return; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 547 | 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] | 548 | |
| 549 | /* we modify the TLB cache so that the dirty bit will be set again |
| 550 | when accessing the range */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 551 | start1 = (unsigned long)qemu_safe_ram_ptr(start); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 552 | /* Chek that we don't span multiple blocks - this breaks the |
| 553 | address comparisons below. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 554 | if ((unsigned long)qemu_safe_ram_ptr(end - 1) - start1 |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 555 | != (end - 1) - start) { |
| 556 | abort(); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 557 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 558 | |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 559 | CPUState *cpu; |
| 560 | CPU_FOREACH(cpu) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 561 | int mmu_idx; |
| 562 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 563 | for(i = 0; i < CPU_TLB_SIZE; i++) { |
| 564 | CPUArchState* env = cpu->env_ptr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 565 | tlb_reset_dirty_range(&env->tlb_table[mmu_idx][i], |
| 566 | start1, length); |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 567 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 568 | } |
| 569 | } |
| 570 | } |
| 571 | |
| 572 | int cpu_physical_memory_set_dirty_tracking(int enable) |
| 573 | { |
| 574 | in_migration = enable; |
| 575 | if (kvm_enabled()) { |
| 576 | return kvm_set_migration_log(enable); |
| 577 | } |
| 578 | return 0; |
| 579 | } |
| 580 | |
| 581 | int cpu_physical_memory_get_dirty_tracking(void) |
| 582 | { |
| 583 | return in_migration; |
| 584 | } |
| 585 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 586 | int cpu_physical_sync_dirty_bitmap(hwaddr start_addr, |
| 587 | hwaddr end_addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 588 | { |
| 589 | int ret = 0; |
| 590 | |
| 591 | if (kvm_enabled()) |
| 592 | ret = kvm_physical_sync_dirty_bitmap(start_addr, end_addr); |
| 593 | return ret; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 594 | } |
| 595 | |
| 596 | static inline void tlb_update_dirty(CPUTLBEntry *tlb_entry) |
| 597 | { |
| 598 | ram_addr_t ram_addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 599 | void *p; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 600 | |
| 601 | if ((tlb_entry->addr_write & ~TARGET_PAGE_MASK) == IO_MEM_RAM) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 602 | p = (void *)(unsigned long)((tlb_entry->addr_write & TARGET_PAGE_MASK) |
| 603 | + tlb_entry->addend); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 604 | ram_addr = qemu_ram_addr_from_host_nofail(p); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 605 | if (!cpu_physical_memory_is_dirty(ram_addr)) { |
| 606 | tlb_entry->addr_write |= TLB_NOTDIRTY; |
| 607 | } |
| 608 | } |
| 609 | } |
| 610 | |
| 611 | /* 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] | 612 | void cpu_tlb_update_dirty(CPUArchState *env) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 613 | { |
| 614 | int i; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 615 | int mmu_idx; |
| 616 | for (mmu_idx = 0; mmu_idx < NB_MMU_MODES; mmu_idx++) { |
| 617 | for(i = 0; i < CPU_TLB_SIZE; i++) |
| 618 | tlb_update_dirty(&env->tlb_table[mmu_idx][i]); |
| 619 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 620 | } |
| 621 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 622 | |
| 623 | #else |
| 624 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 625 | void tlb_flush(CPUArchState *env, int flush_global) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 626 | { |
| 627 | } |
| 628 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 629 | void tlb_flush_page(CPUArchState *env, target_ulong addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 630 | { |
| 631 | } |
| 632 | |
David 'Digit' Turner | 4d6613c | 2014-01-22 18:19:00 +0100 | [diff] [blame] | 633 | int tlb_set_page_exec(CPUArchState *env, target_ulong vaddr, |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 634 | hwaddr paddr, int prot, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 635 | int mmu_idx, int is_softmmu) |
| 636 | { |
| 637 | return 0; |
| 638 | } |
| 639 | |
David 'Digit' Turner | e2678e1 | 2014-01-16 15:56:43 +0100 | [diff] [blame] | 640 | static inline void tlb_set_dirty(CPUOldState *env, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 641 | unsigned long addr, target_ulong vaddr) |
| 642 | { |
| 643 | } |
| 644 | #endif /* defined(CONFIG_USER_ONLY) */ |
| 645 | |
| 646 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 647 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 648 | 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] | 649 | ram_addr_t memory, ram_addr_t region_offset); |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 650 | static void *subpage_init (hwaddr base, ram_addr_t *phys, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 651 | ram_addr_t orig_memory, ram_addr_t region_offset); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 652 | |
| 653 | static void *(*phys_mem_alloc)(size_t size) = qemu_anon_ram_alloc; |
| 654 | |
| 655 | /* |
| 656 | * Set a custom physical guest memory alloator. |
| 657 | * Accelerators with unusual needs may need this. Hopefully, we can |
| 658 | * get rid of it eventually. |
| 659 | */ |
| 660 | void phys_mem_set_alloc(void *(*alloc)(size_t)) |
| 661 | { |
| 662 | phys_mem_alloc = alloc; |
| 663 | } |
| 664 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 665 | #define CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, \ |
| 666 | need_subpage) \ |
| 667 | do { \ |
| 668 | if (addr > start_addr) \ |
| 669 | start_addr2 = 0; \ |
| 670 | else { \ |
| 671 | start_addr2 = start_addr & ~TARGET_PAGE_MASK; \ |
| 672 | if (start_addr2 > 0) \ |
| 673 | need_subpage = 1; \ |
| 674 | } \ |
| 675 | \ |
| 676 | if ((start_addr + orig_size) - addr >= TARGET_PAGE_SIZE) \ |
| 677 | end_addr2 = TARGET_PAGE_SIZE - 1; \ |
| 678 | else { \ |
| 679 | end_addr2 = (start_addr + orig_size - 1) & ~TARGET_PAGE_MASK; \ |
| 680 | if (end_addr2 < TARGET_PAGE_SIZE - 1) \ |
| 681 | need_subpage = 1; \ |
| 682 | } \ |
| 683 | } while (0) |
| 684 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 685 | /* register physical memory. |
| 686 | For RAM, 'size' must be a multiple of the target page size. |
| 687 | If (phys_offset & ~TARGET_PAGE_MASK) != 0, then it is an |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 688 | io memory page. The address used when calling the IO function is |
| 689 | the offset from the start of the region, plus region_offset. Both |
| 690 | start_addr and region_offset are rounded down to a page boundary |
| 691 | before calculating this offset. This should not be a problem unless |
| 692 | the low bits of start_addr and region_offset differ. */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 693 | void cpu_register_physical_memory_log(hwaddr start_addr, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 694 | ram_addr_t size, |
| 695 | ram_addr_t phys_offset, |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 696 | ram_addr_t region_offset, |
| 697 | bool log_dirty) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 698 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 699 | hwaddr addr, end_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 700 | PhysPageDesc *p; |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 701 | CPUState *cpu; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 702 | ram_addr_t orig_size = size; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 703 | subpage_t *subpage; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 704 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 705 | if (kvm_enabled()) |
| 706 | kvm_set_phys_mem(start_addr, size, phys_offset); |
Jun Nakajima | a381ef0 | 2011-12-17 19:13:25 -0800 | [diff] [blame] | 707 | #ifdef CONFIG_HAX |
| 708 | if (hax_enabled()) |
| 709 | hax_set_phys_mem(start_addr, size, phys_offset); |
| 710 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 711 | |
| 712 | if (phys_offset == IO_MEM_UNASSIGNED) { |
| 713 | region_offset = start_addr; |
| 714 | } |
| 715 | region_offset &= TARGET_PAGE_MASK; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 716 | size = (size + TARGET_PAGE_SIZE - 1) & TARGET_PAGE_MASK; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 717 | end_addr = start_addr + (hwaddr)size; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 718 | |
| 719 | addr = start_addr; |
| 720 | do { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 721 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 722 | if (p && p->phys_offset != IO_MEM_UNASSIGNED) { |
| 723 | ram_addr_t orig_memory = p->phys_offset; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 724 | hwaddr start_addr2, end_addr2; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 725 | int need_subpage = 0; |
| 726 | |
| 727 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, end_addr2, |
| 728 | need_subpage); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 729 | if (need_subpage) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 730 | if (!(orig_memory & IO_MEM_SUBPAGE)) { |
| 731 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 732 | &p->phys_offset, orig_memory, |
| 733 | p->region_offset); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 734 | } else { |
| 735 | subpage = io_mem_opaque[(orig_memory & ~TARGET_PAGE_MASK) |
| 736 | >> IO_MEM_SHIFT]; |
| 737 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 738 | subpage_register(subpage, start_addr2, end_addr2, phys_offset, |
| 739 | region_offset); |
| 740 | p->region_offset = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 741 | } else { |
| 742 | p->phys_offset = phys_offset; |
| 743 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
| 744 | (phys_offset & IO_MEM_ROMD)) |
| 745 | phys_offset += TARGET_PAGE_SIZE; |
| 746 | } |
| 747 | } else { |
| 748 | p = phys_page_find_alloc(addr >> TARGET_PAGE_BITS, 1); |
| 749 | p->phys_offset = phys_offset; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 750 | p->region_offset = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 751 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM || |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 752 | (phys_offset & IO_MEM_ROMD)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 753 | phys_offset += TARGET_PAGE_SIZE; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 754 | } else { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 755 | hwaddr start_addr2, end_addr2; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 756 | int need_subpage = 0; |
| 757 | |
| 758 | CHECK_SUBPAGE(addr, start_addr, start_addr2, end_addr, |
| 759 | end_addr2, need_subpage); |
| 760 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 761 | if (need_subpage) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 762 | subpage = subpage_init((addr & TARGET_PAGE_MASK), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 763 | &p->phys_offset, IO_MEM_UNASSIGNED, |
| 764 | addr & TARGET_PAGE_MASK); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 765 | subpage_register(subpage, start_addr2, end_addr2, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 766 | phys_offset, region_offset); |
| 767 | p->region_offset = 0; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 768 | } |
| 769 | } |
| 770 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 771 | region_offset += TARGET_PAGE_SIZE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 772 | addr += TARGET_PAGE_SIZE; |
| 773 | } while (addr != end_addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 774 | |
| 775 | /* since each CPU stores ram addresses in its TLB cache, we must |
| 776 | reset the modified entries */ |
| 777 | /* XXX: slow ! */ |
David 'Digit' Turner | 6657678 | 2014-03-24 16:57:57 +0100 | [diff] [blame] | 778 | CPU_FOREACH(cpu) { |
| 779 | tlb_flush(cpu->env_ptr, 1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 780 | } |
| 781 | } |
| 782 | |
| 783 | /* XXX: temporary until new memory mapping API */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 784 | 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] | 785 | { |
| 786 | PhysPageDesc *p; |
| 787 | |
| 788 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 789 | if (!p) |
| 790 | return IO_MEM_UNASSIGNED; |
| 791 | return p->phys_offset; |
| 792 | } |
| 793 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 794 | void qemu_register_coalesced_mmio(hwaddr addr, ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 795 | { |
| 796 | if (kvm_enabled()) |
| 797 | kvm_coalesce_mmio_region(addr, size); |
| 798 | } |
| 799 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 800 | void qemu_unregister_coalesced_mmio(hwaddr addr, ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 801 | { |
| 802 | if (kvm_enabled()) |
| 803 | kvm_uncoalesce_mmio_region(addr, size); |
| 804 | } |
| 805 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 806 | void qemu_mutex_lock_ramlist(void) |
| 807 | { |
| 808 | qemu_mutex_lock(&ram_list.mutex); |
| 809 | } |
| 810 | |
| 811 | void qemu_mutex_unlock_ramlist(void) |
| 812 | { |
| 813 | qemu_mutex_unlock(&ram_list.mutex); |
| 814 | } |
| 815 | |
| 816 | #if defined(__linux__) && !defined(CONFIG_ANDROID) |
| 817 | |
| 818 | #include <sys/vfs.h> |
| 819 | |
| 820 | #define HUGETLBFS_MAGIC 0x958458f6 |
| 821 | |
| 822 | static long gethugepagesize(const char *path) |
| 823 | { |
| 824 | struct statfs fs; |
| 825 | int ret; |
| 826 | |
| 827 | do { |
| 828 | ret = statfs(path, &fs); |
| 829 | } while (ret != 0 && errno == EINTR); |
| 830 | |
| 831 | if (ret != 0) { |
| 832 | perror(path); |
| 833 | return 0; |
| 834 | } |
| 835 | |
| 836 | if (fs.f_type != HUGETLBFS_MAGIC) |
| 837 | fprintf(stderr, "Warning: path not on HugeTLBFS: %s\n", path); |
| 838 | |
| 839 | return fs.f_bsize; |
| 840 | } |
| 841 | |
| 842 | static sigjmp_buf sigjump; |
| 843 | |
| 844 | static void sigbus_handler(int signal) |
| 845 | { |
| 846 | siglongjmp(sigjump, 1); |
| 847 | } |
| 848 | |
| 849 | static void *file_ram_alloc(RAMBlock *block, |
| 850 | ram_addr_t memory, |
| 851 | const char *path) |
| 852 | { |
| 853 | char *filename; |
| 854 | char *sanitized_name; |
| 855 | char *c; |
| 856 | void *area; |
| 857 | int fd; |
| 858 | unsigned long hpagesize; |
| 859 | |
| 860 | hpagesize = gethugepagesize(path); |
| 861 | if (!hpagesize) { |
| 862 | return NULL; |
| 863 | } |
| 864 | |
| 865 | if (memory < hpagesize) { |
| 866 | return NULL; |
| 867 | } |
| 868 | |
| 869 | if (kvm_enabled() && !kvm_has_sync_mmu()) { |
| 870 | fprintf(stderr, "host lacks kvm mmu notifiers, -mem-path unsupported\n"); |
| 871 | return NULL; |
| 872 | } |
| 873 | |
| 874 | /* Make name safe to use with mkstemp by replacing '/' with '_'. */ |
| 875 | sanitized_name = g_strdup(block->mr->name); |
| 876 | for (c = sanitized_name; *c != '\0'; c++) { |
| 877 | if (*c == '/') |
| 878 | *c = '_'; |
| 879 | } |
| 880 | |
| 881 | filename = g_strdup_printf("%s/qemu_back_mem.%s.XXXXXX", path, |
| 882 | sanitized_name); |
| 883 | g_free(sanitized_name); |
| 884 | |
| 885 | fd = mkstemp(filename); |
| 886 | if (fd < 0) { |
| 887 | perror("unable to create backing store for hugepages"); |
| 888 | g_free(filename); |
| 889 | return NULL; |
| 890 | } |
| 891 | unlink(filename); |
| 892 | g_free(filename); |
| 893 | |
| 894 | memory = (memory+hpagesize-1) & ~(hpagesize-1); |
| 895 | |
| 896 | /* |
| 897 | * ftruncate is not supported by hugetlbfs in older |
| 898 | * hosts, so don't bother bailing out on errors. |
| 899 | * If anything goes wrong with it under other filesystems, |
| 900 | * mmap will fail. |
| 901 | */ |
| 902 | if (ftruncate(fd, memory)) |
| 903 | perror("ftruncate"); |
| 904 | |
| 905 | area = mmap(0, memory, PROT_READ | PROT_WRITE, MAP_PRIVATE, fd, 0); |
| 906 | if (area == MAP_FAILED) { |
| 907 | perror("file_ram_alloc: can't mmap RAM pages"); |
| 908 | close(fd); |
| 909 | return (NULL); |
| 910 | } |
| 911 | |
| 912 | if (mem_prealloc) { |
| 913 | int ret, i; |
| 914 | struct sigaction act, oldact; |
| 915 | sigset_t set, oldset; |
| 916 | |
| 917 | memset(&act, 0, sizeof(act)); |
| 918 | act.sa_handler = &sigbus_handler; |
| 919 | act.sa_flags = 0; |
| 920 | |
| 921 | ret = sigaction(SIGBUS, &act, &oldact); |
| 922 | if (ret) { |
| 923 | perror("file_ram_alloc: failed to install signal handler"); |
| 924 | exit(1); |
| 925 | } |
| 926 | |
| 927 | /* unblock SIGBUS */ |
| 928 | sigemptyset(&set); |
| 929 | sigaddset(&set, SIGBUS); |
| 930 | pthread_sigmask(SIG_UNBLOCK, &set, &oldset); |
| 931 | |
| 932 | if (sigsetjmp(sigjump, 1)) { |
| 933 | fprintf(stderr, "file_ram_alloc: failed to preallocate pages\n"); |
| 934 | exit(1); |
| 935 | } |
| 936 | |
| 937 | /* MAP_POPULATE silently ignores failures */ |
| 938 | for (i = 0; i < (memory/hpagesize)-1; i++) { |
| 939 | memset(area + (hpagesize*i), 0, 1); |
| 940 | } |
| 941 | |
| 942 | ret = sigaction(SIGBUS, &oldact, NULL); |
| 943 | if (ret) { |
| 944 | perror("file_ram_alloc: failed to reinstall signal handler"); |
| 945 | exit(1); |
| 946 | } |
| 947 | |
| 948 | pthread_sigmask(SIG_SETMASK, &oldset, NULL); |
| 949 | } |
| 950 | |
| 951 | block->fd = fd; |
| 952 | return area; |
| 953 | } |
| 954 | #else |
| 955 | static void *file_ram_alloc(RAMBlock *block, |
| 956 | ram_addr_t memory, |
| 957 | const char *path) |
| 958 | { |
| 959 | fprintf(stderr, "-mem-path not supported on this host\n"); |
| 960 | exit(1); |
| 961 | } |
| 962 | #endif |
| 963 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 964 | static ram_addr_t find_ram_offset(ram_addr_t size) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 965 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 966 | RAMBlock *block, *next_block; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 967 | ram_addr_t offset = RAM_ADDR_MAX, mingap = RAM_ADDR_MAX; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 968 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 969 | assert(size != 0); /* it would hand out same offset multiple times */ |
| 970 | |
| 971 | if (QTAILQ_EMPTY(&ram_list.blocks)) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 972 | return 0; |
| 973 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 974 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 975 | ram_addr_t end, next = RAM_ADDR_MAX; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 976 | |
| 977 | end = block->offset + block->length; |
| 978 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 979 | QTAILQ_FOREACH(next_block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 980 | if (next_block->offset >= end) { |
| 981 | next = MIN(next, next_block->offset); |
| 982 | } |
| 983 | } |
| 984 | if (next - end >= size && next - end < mingap) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 985 | offset = end; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 986 | mingap = next - end; |
| 987 | } |
| 988 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 989 | |
| 990 | if (offset == RAM_ADDR_MAX) { |
| 991 | fprintf(stderr, "Failed to find gap of requested size: %" PRIu64 "\n", |
| 992 | (uint64_t)size); |
| 993 | abort(); |
| 994 | } |
| 995 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 996 | return offset; |
| 997 | } |
| 998 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 999 | ram_addr_t last_ram_offset(void) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1000 | { |
| 1001 | RAMBlock *block; |
| 1002 | ram_addr_t last = 0; |
| 1003 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1004 | QTAILQ_FOREACH(block, &ram_list.blocks, next) |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1005 | last = MAX(last, block->offset + block->length); |
| 1006 | |
| 1007 | return last; |
| 1008 | } |
| 1009 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1010 | static void qemu_ram_setup_dump(void *addr, ram_addr_t size) |
| 1011 | { |
| 1012 | #ifndef CONFIG_ANDROID |
| 1013 | int ret; |
| 1014 | |
| 1015 | /* Use MADV_DONTDUMP, if user doesn't want the guest memory in the core */ |
| 1016 | if (!qemu_opt_get_bool(qemu_get_machine_opts(), |
| 1017 | "dump-guest-core", true)) { |
| 1018 | ret = qemu_madvise(addr, size, QEMU_MADV_DONTDUMP); |
| 1019 | if (ret) { |
| 1020 | perror("qemu_madvise"); |
| 1021 | fprintf(stderr, "madvise doesn't support MADV_DONTDUMP, " |
| 1022 | "but dump_guest_core=off specified\n"); |
| 1023 | } |
| 1024 | } |
| 1025 | #endif // !CONFIG_ANDROID |
| 1026 | } |
| 1027 | |
| 1028 | 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] | 1029 | { |
| 1030 | RAMBlock *new_block, *block; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1031 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1032 | new_block = NULL; |
| 1033 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1034 | if (block->offset == addr) { |
| 1035 | new_block = block; |
| 1036 | break; |
| 1037 | } |
| 1038 | } |
| 1039 | assert(new_block); |
| 1040 | assert(!new_block->idstr[0]); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1041 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1042 | if (dev) { |
| 1043 | char *id = qdev_get_dev_path(dev); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1044 | if (id) { |
| 1045 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1046 | g_free(id); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1047 | } |
| 1048 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1049 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); |
| 1050 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1051 | /* This assumes the iothread lock is taken here too. */ |
| 1052 | qemu_mutex_lock_ramlist(); |
| 1053 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1054 | if (block != new_block && !strcmp(block->idstr, new_block->idstr)) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1055 | fprintf(stderr, "RAMBlock \"%s\" already registered, abort!\n", |
| 1056 | new_block->idstr); |
| 1057 | abort(); |
| 1058 | } |
| 1059 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1060 | qemu_mutex_unlock_ramlist(); |
| 1061 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1062 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1063 | static int memory_try_enable_merging(void *addr, size_t len) |
| 1064 | { |
| 1065 | #ifndef CONFIG_ANDROID |
| 1066 | if (!qemu_opt_get_bool(qemu_get_machine_opts(), "mem-merge", true)) { |
| 1067 | /* disabled by the user */ |
| 1068 | return 0; |
| 1069 | } |
| 1070 | |
| 1071 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1072 | #else // CONFIG_ANDROID |
| 1073 | return qemu_madvise(addr, len, QEMU_MADV_MERGEABLE); |
| 1074 | #endif // CONFIG_ANDROID |
| 1075 | } |
| 1076 | |
| 1077 | ram_addr_t qemu_ram_alloc_from_ptr(DeviceState *dev, const char *name, |
| 1078 | ram_addr_t size, void *host) |
| 1079 | { |
| 1080 | RAMBlock *block, *new_block; |
| 1081 | |
| 1082 | size = TARGET_PAGE_ALIGN(size); |
| 1083 | new_block = g_malloc0(sizeof(*new_block)); |
| 1084 | new_block->fd = -1; |
| 1085 | |
| 1086 | /* This assumes the iothread lock is taken here too. */ |
| 1087 | qemu_mutex_lock_ramlist(); |
| 1088 | //new_block->mr = mr; |
| 1089 | new_block->offset = find_ram_offset(size); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1090 | if (host) { |
| 1091 | new_block->host = host; |
| 1092 | new_block->flags |= RAM_PREALLOC_MASK; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1093 | } else if (xen_enabled()) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1094 | if (mem_path) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1095 | fprintf(stderr, "-mem-path not supported with Xen\n"); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1096 | exit(1); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1097 | } |
| 1098 | //xen_ram_alloc(new_block->offset, size, mr); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1099 | } else { |
| 1100 | if (mem_path) { |
| 1101 | if (phys_mem_alloc != qemu_anon_ram_alloc) { |
| 1102 | /* |
| 1103 | * file_ram_alloc() needs to allocate just like |
| 1104 | * phys_mem_alloc, but we haven't bothered to provide |
| 1105 | * a hook there. |
| 1106 | */ |
| 1107 | fprintf(stderr, |
| 1108 | "-mem-path not supported with this accelerator\n"); |
| 1109 | exit(1); |
| 1110 | } |
| 1111 | new_block->host = file_ram_alloc(new_block, size, mem_path); |
| 1112 | } |
| 1113 | if (!new_block->host) { |
| 1114 | new_block->host = phys_mem_alloc(size); |
| 1115 | if (!new_block->host) { |
| 1116 | fprintf(stderr, "Cannot set up guest memory '%s': %s\n", |
| 1117 | name, strerror(errno)); |
| 1118 | exit(1); |
| 1119 | } |
David 'Digit' Turner | f2de2ae | 2014-03-07 16:25:58 +0100 | [diff] [blame] | 1120 | #ifdef CONFIG_HAX |
| 1121 | if (hax_enabled()) { |
| 1122 | /* |
| 1123 | * In HAX, qemu allocates the virtual address, and HAX kernel |
| 1124 | * module populates the region with physical memory. Currently |
| 1125 | * we don’t populate guest memory on demand, thus we should |
| 1126 | * make sure that sufficient amount of memory is available in |
| 1127 | * advance. |
| 1128 | */ |
| 1129 | int ret = hax_populate_ram( |
| 1130 | (uint64_t)(uintptr_t)new_block->host, |
| 1131 | (uint32_t)size); |
| 1132 | if (ret < 0) { |
| 1133 | fprintf(stderr, "Hax failed to populate ram\n"); |
| 1134 | exit(-1); |
| 1135 | } |
| 1136 | } |
| 1137 | #endif // CONFIG_HAX |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1138 | memory_try_enable_merging(new_block->host, size); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1139 | } |
| 1140 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1141 | new_block->length = size; |
| 1142 | |
David 'Digit' Turner | 454cb83 | 2014-04-12 01:02:51 +0200 | [diff] [blame] | 1143 | if (dev) { |
| 1144 | char *id = qdev_get_dev_path(dev); |
| 1145 | if (id) { |
| 1146 | snprintf(new_block->idstr, sizeof(new_block->idstr), "%s/", id); |
| 1147 | g_free(id); |
| 1148 | } |
| 1149 | } |
| 1150 | pstrcat(new_block->idstr, sizeof(new_block->idstr), name); |
| 1151 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1152 | /* Keep the list sorted from biggest to smallest block. */ |
| 1153 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1154 | if (block->length < new_block->length) { |
| 1155 | break; |
| 1156 | } |
| 1157 | } |
| 1158 | if (block) { |
| 1159 | QTAILQ_INSERT_BEFORE(block, new_block, next); |
| 1160 | } else { |
| 1161 | QTAILQ_INSERT_TAIL(&ram_list.blocks, new_block, next); |
| 1162 | } |
| 1163 | ram_list.mru_block = NULL; |
| 1164 | |
| 1165 | ram_list.version++; |
| 1166 | qemu_mutex_unlock_ramlist(); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1167 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1168 | ram_list.phys_dirty = g_realloc(ram_list.phys_dirty, |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1169 | last_ram_offset() >> TARGET_PAGE_BITS); |
| 1170 | memset(ram_list.phys_dirty + (new_block->offset >> TARGET_PAGE_BITS), |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1171 | 0xff, size >> TARGET_PAGE_BITS); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1172 | //cpu_physical_memory_set_dirty_range(new_block->offset, size, 0xff); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1173 | |
David 'Digit' Turner | 7891dd3 | 2014-04-28 10:59:47 +0200 | [diff] [blame] | 1174 | qemu_ram_setup_dump(new_block->host, size); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1175 | //qemu_madvise(new_block->host, size, QEMU_MADV_HUGEPAGE); |
| 1176 | //qemu_madvise(new_block->host, size, QEMU_MADV_DONTFORK); |
David 'Digit' Turner | 454cb83 | 2014-04-12 01:02:51 +0200 | [diff] [blame] | 1177 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1178 | if (kvm_enabled()) |
| 1179 | kvm_setup_guest_memory(new_block->host, size); |
| 1180 | |
| 1181 | return new_block->offset; |
| 1182 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1183 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1184 | ram_addr_t qemu_ram_alloc(DeviceState *dev, const char *name, ram_addr_t size) |
| 1185 | { |
| 1186 | return qemu_ram_alloc_from_ptr(dev, name, size, NULL); |
| 1187 | } |
| 1188 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1189 | void qemu_ram_free_from_ptr(ram_addr_t addr) |
| 1190 | { |
| 1191 | RAMBlock *block; |
| 1192 | |
| 1193 | /* This assumes the iothread lock is taken here too. */ |
| 1194 | qemu_mutex_lock_ramlist(); |
| 1195 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1196 | if (addr == block->offset) { |
| 1197 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
| 1198 | ram_list.mru_block = NULL; |
| 1199 | ram_list.version++; |
| 1200 | g_free(block); |
| 1201 | break; |
| 1202 | } |
| 1203 | } |
| 1204 | qemu_mutex_unlock_ramlist(); |
| 1205 | } |
| 1206 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1207 | void qemu_ram_free(ram_addr_t addr) |
| 1208 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1209 | RAMBlock *block; |
| 1210 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1211 | /* This assumes the iothread lock is taken here too. */ |
| 1212 | qemu_mutex_lock_ramlist(); |
| 1213 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1214 | if (addr == block->offset) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1215 | QTAILQ_REMOVE(&ram_list.blocks, block, next); |
| 1216 | ram_list.mru_block = NULL; |
| 1217 | ram_list.version++; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1218 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1219 | ; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1220 | } else if (xen_enabled()) { |
| 1221 | //xen_invalidate_map_cache_entry(block->host); |
| 1222 | #ifndef _WIN32 |
| 1223 | } else if (block->fd >= 0) { |
| 1224 | munmap(block->host, block->length); |
| 1225 | close(block->fd); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1226 | #endif |
| 1227 | } else { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1228 | qemu_anon_ram_free(block->host, block->length); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1229 | } |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1230 | g_free(block); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1231 | break; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1232 | } |
| 1233 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1234 | qemu_mutex_unlock_ramlist(); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1235 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1236 | } |
| 1237 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1238 | #ifndef _WIN32 |
| 1239 | void qemu_ram_remap(ram_addr_t addr, ram_addr_t length) |
| 1240 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1241 | RAMBlock *block; |
| 1242 | ram_addr_t offset; |
| 1243 | int flags; |
| 1244 | void *area, *vaddr; |
| 1245 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1246 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1247 | offset = addr - block->offset; |
| 1248 | if (offset < block->length) { |
| 1249 | vaddr = block->host + offset; |
| 1250 | if (block->flags & RAM_PREALLOC_MASK) { |
| 1251 | ; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1252 | } else if (xen_enabled()) { |
| 1253 | abort(); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1254 | } else { |
| 1255 | flags = MAP_FIXED; |
| 1256 | munmap(vaddr, length); |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1257 | if (block->fd >= 0) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1258 | #ifdef MAP_POPULATE |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1259 | flags |= mem_prealloc ? MAP_POPULATE | MAP_SHARED : |
| 1260 | MAP_PRIVATE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1261 | #else |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1262 | flags |= MAP_PRIVATE; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1263 | #endif |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1264 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1265 | flags, block->fd, offset); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1266 | } else { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1267 | /* |
| 1268 | * Remap needs to match alloc. Accelerators that |
| 1269 | * set phys_mem_alloc never remap. If they did, |
| 1270 | * we'd need a remap hook here. |
| 1271 | */ |
| 1272 | assert(phys_mem_alloc == qemu_anon_ram_alloc); |
| 1273 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1274 | flags |= MAP_PRIVATE | MAP_ANONYMOUS; |
| 1275 | area = mmap(vaddr, length, PROT_READ | PROT_WRITE, |
| 1276 | flags, -1, 0); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1277 | } |
| 1278 | if (area != vaddr) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1279 | fprintf(stderr, "Could not remap addr: " |
| 1280 | RAM_ADDR_FMT "@" RAM_ADDR_FMT "\n", |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1281 | length, addr); |
| 1282 | exit(1); |
| 1283 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1284 | memory_try_enable_merging(vaddr, length); |
| 1285 | qemu_ram_setup_dump(vaddr, length); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1286 | } |
| 1287 | return; |
| 1288 | } |
| 1289 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1290 | } |
| 1291 | #endif /* !_WIN32 */ |
| 1292 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1293 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
| 1294 | With the exception of the softmmu code in this file, this should |
| 1295 | only be used for local memory (e.g. video ram) that the device owns, |
| 1296 | and knows it isn't going to access beyond the end of the block. |
| 1297 | |
| 1298 | It should not be used for general purpose DMA. |
| 1299 | Use cpu_physical_memory_map/cpu_physical_memory_rw instead. |
| 1300 | */ |
| 1301 | void *qemu_get_ram_ptr(ram_addr_t addr) |
| 1302 | { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1303 | RAMBlock *block = qemu_get_ram_block(addr); |
| 1304 | #if 0 |
| 1305 | if (xen_enabled()) { |
| 1306 | /* We need to check if the requested address is in the RAM |
| 1307 | * because we don't want to map the entire memory in QEMU. |
| 1308 | * In that case just map until the end of the page. |
| 1309 | */ |
| 1310 | if (block->offset == 0) { |
| 1311 | return xen_map_cache(addr, 0, 0); |
| 1312 | } else if (block->host == NULL) { |
| 1313 | block->host = |
| 1314 | xen_map_cache(block->offset, block->length, 1); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1315 | } |
| 1316 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1317 | #endif |
| 1318 | return block->host + (addr - block->offset); |
| 1319 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1320 | |
| 1321 | /* Return a host pointer to ram allocated with qemu_ram_alloc. |
| 1322 | * Same as qemu_get_ram_ptr but avoid reordering ramblocks. |
| 1323 | */ |
| 1324 | void *qemu_safe_ram_ptr(ram_addr_t addr) |
| 1325 | { |
| 1326 | RAMBlock *block; |
| 1327 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1328 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1329 | if (addr - block->offset < block->length) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1330 | return block->host + (addr - block->offset); |
| 1331 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1332 | } |
| 1333 | |
| 1334 | fprintf(stderr, "Bad ram offset %" PRIx64 "\n", (uint64_t)addr); |
| 1335 | abort(); |
| 1336 | |
| 1337 | return NULL; |
| 1338 | } |
| 1339 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1340 | /* Some of the softmmu routines need to translate from a host pointer |
| 1341 | (typically a TLB entry) back to a ram offset. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1342 | int qemu_ram_addr_from_host(void *ptr, ram_addr_t *ram_addr) |
| 1343 | { |
| 1344 | RAMBlock *block; |
| 1345 | uint8_t *host = ptr; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1346 | #if 0 |
| 1347 | if (xen_enabled()) { |
| 1348 | *ram_addr = xen_ram_addr_from_mapcache(ptr); |
| 1349 | return qemu_get_ram_block(*ram_addr)->mr; |
| 1350 | } |
| 1351 | #endif |
| 1352 | block = ram_list.mru_block; |
| 1353 | if (block && block->host && host - block->host < block->length) { |
| 1354 | goto found; |
| 1355 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1356 | |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1357 | QTAILQ_FOREACH(block, &ram_list.blocks, next) { |
| 1358 | /* This case append when the block is not mapped. */ |
| 1359 | if (block->host == NULL) { |
| 1360 | continue; |
| 1361 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1362 | if (host - block->host < block->length) { |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1363 | goto found; |
| 1364 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1365 | } |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1366 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1367 | return -1; |
David 'Digit' Turner | 0e8e748 | 2014-02-17 20:25:52 +0100 | [diff] [blame] | 1368 | |
| 1369 | found: |
| 1370 | *ram_addr = block->offset + (host - block->host); |
| 1371 | return 0; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1372 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1373 | |
| 1374 | /* Some of the softmmu routines need to translate from a host pointer |
| 1375 | (typically a TLB entry) back to a ram offset. */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1376 | ram_addr_t qemu_ram_addr_from_host_nofail(void *ptr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1377 | { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1378 | ram_addr_t ram_addr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1379 | |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1380 | if (qemu_ram_addr_from_host(ptr, &ram_addr)) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1381 | fprintf(stderr, "Bad ram pointer %p\n", ptr); |
| 1382 | abort(); |
| 1383 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1384 | return ram_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1385 | } |
| 1386 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1387 | 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] | 1388 | { |
| 1389 | #ifdef DEBUG_UNASSIGNED |
| 1390 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1391 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1392 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 6cf763a | 2014-03-14 13:25:11 +0100 | [diff] [blame] | 1393 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1394 | #endif |
| 1395 | return 0; |
| 1396 | } |
| 1397 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1398 | static uint32_t unassigned_mem_readw(void *opaque, hwaddr addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1399 | { |
| 1400 | #ifdef DEBUG_UNASSIGNED |
| 1401 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1402 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1403 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 6cf763a | 2014-03-14 13:25:11 +0100 | [diff] [blame] | 1404 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, 2); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1405 | #endif |
| 1406 | return 0; |
| 1407 | } |
| 1408 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1409 | static uint32_t unassigned_mem_readl(void *opaque, hwaddr addr) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1410 | { |
| 1411 | #ifdef DEBUG_UNASSIGNED |
| 1412 | printf("Unassigned mem read " TARGET_FMT_plx "\n", addr); |
| 1413 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1414 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 6cf763a | 2014-03-14 13:25:11 +0100 | [diff] [blame] | 1415 | cpu_unassigned_access(cpu_single_env, addr, 0, 0, 0, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1416 | #endif |
| 1417 | return 0; |
| 1418 | } |
| 1419 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1420 | 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] | 1421 | { |
| 1422 | #ifdef DEBUG_UNASSIGNED |
| 1423 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1424 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1425 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 6cf763a | 2014-03-14 13:25:11 +0100 | [diff] [blame] | 1426 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1427 | #endif |
| 1428 | } |
| 1429 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1430 | 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] | 1431 | { |
| 1432 | #ifdef DEBUG_UNASSIGNED |
| 1433 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1434 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1435 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 6cf763a | 2014-03-14 13:25:11 +0100 | [diff] [blame] | 1436 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, 2); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1437 | #endif |
| 1438 | } |
| 1439 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1440 | 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] | 1441 | { |
| 1442 | #ifdef DEBUG_UNASSIGNED |
| 1443 | printf("Unassigned mem write " TARGET_FMT_plx " = 0x%x\n", addr, val); |
| 1444 | #endif |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1445 | #if defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE) |
David 'Digit' Turner | 6cf763a | 2014-03-14 13:25:11 +0100 | [diff] [blame] | 1446 | cpu_unassigned_access(cpu_single_env, addr, 1, 0, 0, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1447 | #endif |
| 1448 | } |
| 1449 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1450 | static CPUReadMemoryFunc * const unassigned_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1451 | unassigned_mem_readb, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1452 | unassigned_mem_readw, |
| 1453 | unassigned_mem_readl, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1454 | }; |
| 1455 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1456 | static CPUWriteMemoryFunc * const unassigned_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1457 | unassigned_mem_writeb, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1458 | unassigned_mem_writew, |
| 1459 | unassigned_mem_writel, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1460 | }; |
| 1461 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1462 | 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] | 1463 | uint32_t val) |
| 1464 | { |
| 1465 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1466 | 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] | 1467 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1468 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame] | 1469 | tb_invalidate_phys_page_fast0(ram_addr, 1); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1470 | 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] | 1471 | #endif |
| 1472 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1473 | stb_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1474 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1475 | 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] | 1476 | /* we remove the notdirty callback only if the code has been |
| 1477 | flushed */ |
| 1478 | if (dirty_flags == 0xff) |
| 1479 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1480 | } |
| 1481 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1482 | 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] | 1483 | uint32_t val) |
| 1484 | { |
| 1485 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1486 | 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] | 1487 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1488 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame] | 1489 | tb_invalidate_phys_page_fast0(ram_addr, 2); |
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 | #endif |
| 1492 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1493 | stw_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1494 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1495 | 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] | 1496 | /* we remove the notdirty callback only if the code has been |
| 1497 | flushed */ |
| 1498 | if (dirty_flags == 0xff) |
| 1499 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1500 | } |
| 1501 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1502 | 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] | 1503 | uint32_t val) |
| 1504 | { |
| 1505 | int dirty_flags; |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1506 | 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] | 1507 | if (!(dirty_flags & CODE_DIRTY_FLAG)) { |
| 1508 | #if !defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | ff9a2b8 | 2014-02-17 22:31:24 +0100 | [diff] [blame] | 1509 | tb_invalidate_phys_page_fast0(ram_addr, 4); |
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 | #endif |
| 1512 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1513 | stl_p(qemu_get_ram_ptr(ram_addr), val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1514 | dirty_flags |= (0xff & ~CODE_DIRTY_FLAG); |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 1515 | 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] | 1516 | /* we remove the notdirty callback only if the code has been |
| 1517 | flushed */ |
| 1518 | if (dirty_flags == 0xff) |
| 1519 | tlb_set_dirty(cpu_single_env, cpu_single_env->mem_io_vaddr); |
| 1520 | } |
| 1521 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1522 | static CPUReadMemoryFunc * const error_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1523 | NULL, /* never used */ |
| 1524 | NULL, /* never used */ |
| 1525 | NULL, /* never used */ |
| 1526 | }; |
| 1527 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1528 | static CPUWriteMemoryFunc * const notdirty_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1529 | notdirty_mem_writeb, |
| 1530 | notdirty_mem_writew, |
| 1531 | notdirty_mem_writel, |
| 1532 | }; |
| 1533 | |
David 'Digit' Turner | 8b87a1d | 2014-03-14 16:44:00 +0100 | [diff] [blame] | 1534 | static void tb_check_watchpoint(CPUArchState* env) |
| 1535 | { |
| 1536 | TranslationBlock *tb = tb_find_pc(env->mem_io_pc); |
| 1537 | if (!tb) { |
| 1538 | cpu_abort(env, "check_watchpoint: could not find TB for " |
| 1539 | "pc=%p", (void *)env->mem_io_pc); |
| 1540 | } |
| 1541 | cpu_restore_state(env, env->mem_io_pc); |
| 1542 | tb_phys_invalidate(tb, -1); |
| 1543 | } |
| 1544 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1545 | /* Generate a debug exception if a watchpoint has been hit. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1546 | 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] | 1547 | { |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 1548 | CPUState *cpu = current_cpu; |
| 1549 | CPUArchState *env = cpu->env_ptr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1550 | target_ulong pc, cs_base; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1551 | target_ulong vaddr; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1552 | CPUWatchpoint *wp; |
| 1553 | int cpu_flags; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1554 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1555 | if (env->watchpoint_hit) { |
| 1556 | /* We re-entered the check after replacing the TB. Now raise |
| 1557 | * the debug interrupt so that is will trigger after the |
| 1558 | * current instruction. */ |
David 'Digit' Turner | bf7a22f | 2014-03-25 16:36:03 +0100 | [diff] [blame] | 1559 | cpu_interrupt(cpu, CPU_INTERRUPT_DEBUG); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1560 | return; |
| 1561 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1562 | vaddr = (env->mem_io_vaddr & TARGET_PAGE_MASK) + offset; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1563 | QTAILQ_FOREACH(wp, &env->watchpoints, entry) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1564 | if ((vaddr == (wp->vaddr & len_mask) || |
| 1565 | (vaddr & wp->len_mask) == wp->vaddr) && (wp->flags & flags)) { |
| 1566 | wp->flags |= BP_WATCHPOINT_HIT; |
| 1567 | if (!env->watchpoint_hit) { |
| 1568 | env->watchpoint_hit = wp; |
David 'Digit' Turner | 8b87a1d | 2014-03-14 16:44:00 +0100 | [diff] [blame] | 1569 | tb_check_watchpoint(env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1570 | if (wp->flags & BP_STOP_BEFORE_ACCESS) { |
| 1571 | env->exception_index = EXCP_DEBUG; |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1572 | cpu_loop_exit(env); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1573 | } else { |
| 1574 | cpu_get_tb_cpu_state(env, &pc, &cs_base, &cpu_flags); |
| 1575 | tb_gen_code(env, pc, cs_base, cpu_flags, 1); |
David 'Digit' Turner | 85c6220 | 2014-02-16 20:53:40 +0100 | [diff] [blame] | 1576 | cpu_resume_from_signal(env, NULL); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1577 | } |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1578 | } |
| 1579 | } else { |
| 1580 | wp->flags &= ~BP_WATCHPOINT_HIT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1581 | } |
| 1582 | } |
| 1583 | } |
| 1584 | |
| 1585 | /* Watchpoint access routines. Watchpoints are inserted using TLB tricks, |
| 1586 | so these check for a hit then pass through to the normal out-of-line |
| 1587 | phys routines. */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1588 | 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] | 1589 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1590 | 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] | 1591 | return ldub_phys(addr); |
| 1592 | } |
| 1593 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1594 | 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] | 1595 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1596 | 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] | 1597 | return lduw_phys(addr); |
| 1598 | } |
| 1599 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1600 | 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] | 1601 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1602 | 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] | 1603 | return ldl_phys(addr); |
| 1604 | } |
| 1605 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1606 | static void watch_mem_writeb(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1607 | uint32_t val) |
| 1608 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1609 | 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] | 1610 | stb_phys(addr, val); |
| 1611 | } |
| 1612 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1613 | static void watch_mem_writew(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1614 | uint32_t val) |
| 1615 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1616 | 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] | 1617 | stw_phys(addr, val); |
| 1618 | } |
| 1619 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1620 | static void watch_mem_writel(void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1621 | uint32_t val) |
| 1622 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1623 | 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] | 1624 | stl_phys(addr, val); |
| 1625 | } |
| 1626 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1627 | static CPUReadMemoryFunc * const watch_mem_read[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1628 | watch_mem_readb, |
| 1629 | watch_mem_readw, |
| 1630 | watch_mem_readl, |
| 1631 | }; |
| 1632 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1633 | static CPUWriteMemoryFunc * const watch_mem_write[3] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1634 | watch_mem_writeb, |
| 1635 | watch_mem_writew, |
| 1636 | watch_mem_writel, |
| 1637 | }; |
| 1638 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1639 | 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] | 1640 | unsigned int len) |
| 1641 | { |
| 1642 | uint32_t ret; |
| 1643 | unsigned int idx; |
| 1644 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1645 | idx = SUBPAGE_IDX(addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1646 | #if defined(DEBUG_SUBPAGE) |
| 1647 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d\n", __func__, |
| 1648 | mmio, len, addr, idx); |
| 1649 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1650 | ret = (**mmio->mem_read[idx][len])(mmio->opaque[idx][0][len], |
| 1651 | addr + mmio->region_offset[idx][0][len]); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1652 | |
| 1653 | return ret; |
| 1654 | } |
| 1655 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1656 | 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] | 1657 | uint32_t value, unsigned int len) |
| 1658 | { |
| 1659 | unsigned int idx; |
| 1660 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1661 | idx = SUBPAGE_IDX(addr); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1662 | #if defined(DEBUG_SUBPAGE) |
| 1663 | printf("%s: subpage %p len %d addr " TARGET_FMT_plx " idx %d value %08x\n", __func__, |
| 1664 | mmio, len, addr, idx, value); |
| 1665 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1666 | (**mmio->mem_write[idx][len])(mmio->opaque[idx][1][len], |
| 1667 | addr + mmio->region_offset[idx][1][len], |
| 1668 | value); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1669 | } |
| 1670 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1671 | static uint32_t subpage_readb (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1672 | { |
| 1673 | #if defined(DEBUG_SUBPAGE) |
| 1674 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1675 | #endif |
| 1676 | |
| 1677 | return subpage_readlen(opaque, addr, 0); |
| 1678 | } |
| 1679 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1680 | static void subpage_writeb (void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1681 | uint32_t value) |
| 1682 | { |
| 1683 | #if defined(DEBUG_SUBPAGE) |
| 1684 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1685 | #endif |
| 1686 | subpage_writelen(opaque, addr, value, 0); |
| 1687 | } |
| 1688 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1689 | static uint32_t subpage_readw (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1690 | { |
| 1691 | #if defined(DEBUG_SUBPAGE) |
| 1692 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1693 | #endif |
| 1694 | |
| 1695 | return subpage_readlen(opaque, addr, 1); |
| 1696 | } |
| 1697 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1698 | static void subpage_writew (void *opaque, hwaddr addr, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1699 | uint32_t value) |
| 1700 | { |
| 1701 | #if defined(DEBUG_SUBPAGE) |
| 1702 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1703 | #endif |
| 1704 | subpage_writelen(opaque, addr, value, 1); |
| 1705 | } |
| 1706 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1707 | static uint32_t subpage_readl (void *opaque, hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1708 | { |
| 1709 | #if defined(DEBUG_SUBPAGE) |
| 1710 | printf("%s: addr " TARGET_FMT_plx "\n", __func__, addr); |
| 1711 | #endif |
| 1712 | |
| 1713 | return subpage_readlen(opaque, addr, 2); |
| 1714 | } |
| 1715 | |
| 1716 | static void subpage_writel (void *opaque, |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1717 | hwaddr addr, uint32_t value) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1718 | { |
| 1719 | #if defined(DEBUG_SUBPAGE) |
| 1720 | printf("%s: addr " TARGET_FMT_plx " val %08x\n", __func__, addr, value); |
| 1721 | #endif |
| 1722 | subpage_writelen(opaque, addr, value, 2); |
| 1723 | } |
| 1724 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1725 | static CPUReadMemoryFunc * const subpage_read[] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1726 | &subpage_readb, |
| 1727 | &subpage_readw, |
| 1728 | &subpage_readl, |
| 1729 | }; |
| 1730 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1731 | static CPUWriteMemoryFunc * const subpage_write[] = { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1732 | &subpage_writeb, |
| 1733 | &subpage_writew, |
| 1734 | &subpage_writel, |
| 1735 | }; |
| 1736 | |
| 1737 | 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] | 1738 | ram_addr_t memory, ram_addr_t region_offset) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1739 | { |
| 1740 | int idx, eidx; |
| 1741 | unsigned int i; |
| 1742 | |
| 1743 | if (start >= TARGET_PAGE_SIZE || end >= TARGET_PAGE_SIZE) |
| 1744 | return -1; |
| 1745 | idx = SUBPAGE_IDX(start); |
| 1746 | eidx = SUBPAGE_IDX(end); |
| 1747 | #if defined(DEBUG_SUBPAGE) |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1748 | 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] | 1749 | mmio, start, end, idx, eidx, memory); |
| 1750 | #endif |
| 1751 | memory >>= IO_MEM_SHIFT; |
| 1752 | for (; idx <= eidx; idx++) { |
| 1753 | for (i = 0; i < 4; i++) { |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1754 | if (_io_mem_read[memory][i]) { |
| 1755 | mmio->mem_read[idx][i] = &_io_mem_read[memory][i]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1756 | mmio->opaque[idx][0][i] = io_mem_opaque[memory]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1757 | mmio->region_offset[idx][0][i] = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1758 | } |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1759 | if (_io_mem_write[memory][i]) { |
| 1760 | mmio->mem_write[idx][i] = &_io_mem_write[memory][i]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1761 | mmio->opaque[idx][1][i] = io_mem_opaque[memory]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1762 | mmio->region_offset[idx][1][i] = region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1763 | } |
| 1764 | } |
| 1765 | } |
| 1766 | |
| 1767 | return 0; |
| 1768 | } |
| 1769 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1770 | static void *subpage_init (hwaddr base, ram_addr_t *phys, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1771 | 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] | 1772 | { |
| 1773 | subpage_t *mmio; |
| 1774 | int subpage_memory; |
| 1775 | |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 1776 | mmio = g_malloc0(sizeof(subpage_t)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1777 | |
| 1778 | mmio->base = base; |
| 1779 | 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] | 1780 | #if defined(DEBUG_SUBPAGE) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1781 | printf("%s: %p base " TARGET_FMT_plx " len %08x %d\n", __func__, |
| 1782 | mmio, base, TARGET_PAGE_SIZE, subpage_memory); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1783 | #endif |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1784 | *phys = subpage_memory | IO_MEM_SUBPAGE; |
| 1785 | subpage_register(mmio, 0, TARGET_PAGE_SIZE - 1, orig_memory, |
| 1786 | region_offset); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1787 | |
| 1788 | return mmio; |
| 1789 | } |
| 1790 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1791 | static int get_free_io_mem_idx(void) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1792 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1793 | int i; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1794 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1795 | for (i = 0; i<IO_MEM_NB_ENTRIES; i++) |
| 1796 | if (!io_mem_used[i]) { |
| 1797 | io_mem_used[i] = 1; |
| 1798 | return i; |
| 1799 | } |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 1800 | 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] | 1801 | return -1; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1802 | } |
| 1803 | |
| 1804 | /* mem_read and mem_write are arrays of functions containing the |
| 1805 | 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] | 1806 | 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] | 1807 | If io_index is non zero, the corresponding io zone is |
| 1808 | modified. If it is zero, a new io zone is allocated. The return |
| 1809 | value can be used with cpu_register_physical_memory(). (-1) is |
| 1810 | returned if error. */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1811 | static int cpu_register_io_memory_fixed(int io_index, |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1812 | CPUReadMemoryFunc * const *mem_read, |
| 1813 | CPUWriteMemoryFunc * const *mem_write, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1814 | void *opaque) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1815 | { |
| 1816 | int i, subwidth = 0; |
| 1817 | |
| 1818 | if (io_index <= 0) { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1819 | io_index = get_free_io_mem_idx(); |
| 1820 | if (io_index == -1) |
| 1821 | return io_index; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1822 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1823 | io_index >>= IO_MEM_SHIFT; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1824 | if (io_index >= IO_MEM_NB_ENTRIES) |
| 1825 | return -1; |
| 1826 | } |
| 1827 | |
| 1828 | for(i = 0;i < 3; i++) { |
| 1829 | if (!mem_read[i] || !mem_write[i]) |
| 1830 | subwidth = IO_MEM_SUBWIDTH; |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1831 | _io_mem_read[io_index][i] = mem_read[i]; |
| 1832 | _io_mem_write[io_index][i] = mem_write[i]; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1833 | } |
| 1834 | io_mem_opaque[io_index] = opaque; |
| 1835 | return (io_index << IO_MEM_SHIFT) | subwidth; |
| 1836 | } |
| 1837 | |
David 'Digit' Turner | 3641106 | 2010-12-22 17:34:53 +0100 | [diff] [blame] | 1838 | int cpu_register_io_memory(CPUReadMemoryFunc * const *mem_read, |
| 1839 | CPUWriteMemoryFunc * const *mem_write, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1840 | void *opaque) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1841 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1842 | 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] | 1843 | } |
| 1844 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1845 | void cpu_unregister_io_memory(int io_table_address) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1846 | { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1847 | int i; |
| 1848 | int io_index = io_table_address >> IO_MEM_SHIFT; |
| 1849 | |
| 1850 | for (i=0;i < 3; i++) { |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1851 | _io_mem_read[io_index][i] = unassigned_mem_read[i]; |
| 1852 | _io_mem_write[io_index][i] = unassigned_mem_write[i]; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1853 | } |
| 1854 | io_mem_opaque[io_index] = NULL; |
| 1855 | io_mem_used[io_index] = 0; |
| 1856 | } |
| 1857 | |
| 1858 | static void io_mem_init(void) |
| 1859 | { |
| 1860 | int i; |
| 1861 | |
| 1862 | cpu_register_io_memory_fixed(IO_MEM_ROM, error_mem_read, unassigned_mem_write, NULL); |
| 1863 | cpu_register_io_memory_fixed(IO_MEM_UNASSIGNED, unassigned_mem_read, unassigned_mem_write, NULL); |
| 1864 | cpu_register_io_memory_fixed(IO_MEM_NOTDIRTY, error_mem_read, notdirty_mem_write, NULL); |
| 1865 | for (i=0; i<5; i++) |
| 1866 | io_mem_used[i] = 1; |
| 1867 | |
| 1868 | io_mem_watch = cpu_register_io_memory(watch_mem_read, |
| 1869 | watch_mem_write, NULL); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1870 | } |
| 1871 | |
| 1872 | #endif /* !defined(CONFIG_USER_ONLY) */ |
| 1873 | |
| 1874 | /* physical memory access (slow version, mainly for debug) */ |
| 1875 | #if defined(CONFIG_USER_ONLY) |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1876 | void cpu_physical_memory_rw(hwaddr addr, void *buf, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1877 | int len, int is_write) |
| 1878 | { |
| 1879 | int l, flags; |
| 1880 | target_ulong page; |
| 1881 | void * p; |
| 1882 | |
| 1883 | while (len > 0) { |
| 1884 | page = addr & TARGET_PAGE_MASK; |
| 1885 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1886 | if (l > len) |
| 1887 | l = len; |
| 1888 | flags = page_get_flags(page); |
| 1889 | if (!(flags & PAGE_VALID)) |
| 1890 | return; |
| 1891 | if (is_write) { |
| 1892 | if (!(flags & PAGE_WRITE)) |
| 1893 | return; |
| 1894 | /* XXX: this code should not depend on lock_user */ |
| 1895 | if (!(p = lock_user(VERIFY_WRITE, addr, l, 0))) |
| 1896 | /* FIXME - should this return an error rather than just fail? */ |
| 1897 | return; |
| 1898 | memcpy(p, buf, l); |
| 1899 | unlock_user(p, addr, l); |
| 1900 | } else { |
| 1901 | if (!(flags & PAGE_READ)) |
| 1902 | return; |
| 1903 | /* XXX: this code should not depend on lock_user */ |
| 1904 | if (!(p = lock_user(VERIFY_READ, addr, l, 1))) |
| 1905 | /* FIXME - should this return an error rather than just fail? */ |
| 1906 | return; |
| 1907 | memcpy(buf, p, l); |
| 1908 | unlock_user(p, addr, 0); |
| 1909 | } |
| 1910 | len -= l; |
| 1911 | buf += l; |
| 1912 | addr += l; |
| 1913 | } |
| 1914 | } |
| 1915 | |
| 1916 | #else |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 1917 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1918 | static void invalidate_and_set_dirty(hwaddr addr, |
| 1919 | hwaddr length) |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 1920 | { |
| 1921 | if (!cpu_physical_memory_is_dirty(addr)) { |
| 1922 | /* invalidate code */ |
| 1923 | tb_invalidate_phys_page_range(addr, addr + length, 0); |
| 1924 | /* set dirty bit */ |
| 1925 | cpu_physical_memory_set_dirty_flags(addr, (0xff & ~CODE_DIRTY_FLAG)); |
| 1926 | } |
| 1927 | } |
| 1928 | |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1929 | void cpu_physical_memory_rw(hwaddr addr, void *buf, |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1930 | int len, int is_write) |
| 1931 | { |
| 1932 | int l, io_index; |
| 1933 | uint8_t *ptr; |
| 1934 | uint32_t val; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1935 | hwaddr page; |
David 'Digit' Turner | b974f3f | 2014-03-19 14:13:35 +0100 | [diff] [blame] | 1936 | ram_addr_t pd; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1937 | uint8_t* buf8 = (uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1938 | PhysPageDesc *p; |
| 1939 | |
| 1940 | while (len > 0) { |
| 1941 | page = addr & TARGET_PAGE_MASK; |
| 1942 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 1943 | if (l > len) |
| 1944 | l = len; |
| 1945 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 1946 | if (!p) { |
| 1947 | pd = IO_MEM_UNASSIGNED; |
| 1948 | } else { |
| 1949 | pd = p->phys_offset; |
| 1950 | } |
| 1951 | |
| 1952 | if (is_write) { |
| 1953 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1954 | hwaddr addr1 = addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1955 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1956 | if (p) |
| 1957 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1958 | /* XXX: could force cpu_single_env to NULL to avoid |
| 1959 | potential bugs */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1960 | if (l >= 4 && ((addr1 & 3) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1961 | /* 32 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1962 | val = ldl_p(buf8); |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1963 | io_mem_write(io_index, addr1, val, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1964 | l = 4; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1965 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1966 | /* 16 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1967 | val = lduw_p(buf8); |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1968 | io_mem_write(io_index, addr1, val, 2); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1969 | l = 2; |
| 1970 | } else { |
| 1971 | /* 8 bit write access */ |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1972 | val = ldub_p(buf8); |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1973 | io_mem_write(io_index, addr1, val, 1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1974 | l = 1; |
| 1975 | } |
| 1976 | } else { |
David 'Digit' Turner | b974f3f | 2014-03-19 14:13:35 +0100 | [diff] [blame] | 1977 | ram_addr_t addr1; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1978 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 1979 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1980 | ptr = qemu_get_ram_ptr(addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1981 | memcpy(ptr, buf8, l); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 1982 | invalidate_and_set_dirty(addr1, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1983 | } |
| 1984 | } else { |
| 1985 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 1986 | !(pd & IO_MEM_ROMD)) { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 1987 | hwaddr addr1 = addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1988 | /* I/O case */ |
| 1989 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1990 | if (p) |
| 1991 | addr1 = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
| 1992 | if (l >= 4 && ((addr1 & 3) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1993 | /* 32 bit read access */ |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1994 | val = io_mem_read(io_index, addr1, 4); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 1995 | stl_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1996 | l = 4; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 1997 | } else if (l >= 2 && ((addr1 & 1) == 0)) { |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 1998 | /* 16 bit read access */ |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 1999 | val = io_mem_read(io_index, addr1, 2); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2000 | stw_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2001 | l = 2; |
| 2002 | } else { |
| 2003 | /* 8 bit read access */ |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2004 | val = io_mem_read(io_index, addr1, 1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2005 | stb_p(buf8, val); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2006 | l = 1; |
| 2007 | } |
| 2008 | } else { |
| 2009 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2010 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2011 | (addr & ~TARGET_PAGE_MASK); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2012 | memcpy(buf8, ptr, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2013 | } |
| 2014 | } |
| 2015 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2016 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2017 | addr += l; |
| 2018 | } |
| 2019 | } |
| 2020 | |
| 2021 | /* used for ROM loading : can write in RAM and ROM */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2022 | void cpu_physical_memory_write_rom(hwaddr addr, |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2023 | const void *buf, int len) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2024 | { |
| 2025 | int l; |
| 2026 | uint8_t *ptr; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2027 | hwaddr page; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2028 | unsigned long pd; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2029 | const uint8_t* buf8 = (const uint8_t*)buf; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2030 | PhysPageDesc *p; |
| 2031 | |
| 2032 | while (len > 0) { |
| 2033 | page = addr & TARGET_PAGE_MASK; |
| 2034 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2035 | if (l > len) |
| 2036 | l = len; |
| 2037 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 2038 | if (!p) { |
| 2039 | pd = IO_MEM_UNASSIGNED; |
| 2040 | } else { |
| 2041 | pd = p->phys_offset; |
| 2042 | } |
| 2043 | |
| 2044 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM && |
| 2045 | (pd & ~TARGET_PAGE_MASK) != IO_MEM_ROM && |
| 2046 | !(pd & IO_MEM_ROMD)) { |
| 2047 | /* do nothing */ |
| 2048 | } else { |
| 2049 | unsigned long addr1; |
| 2050 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2051 | /* ROM/RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2052 | ptr = qemu_get_ram_ptr(addr1); |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2053 | memcpy(ptr, buf8, l); |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2054 | invalidate_and_set_dirty(addr1, l); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2055 | } |
| 2056 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2057 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2058 | addr += l; |
| 2059 | } |
| 2060 | } |
| 2061 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2062 | typedef struct { |
| 2063 | void *buffer; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2064 | hwaddr addr; |
| 2065 | hwaddr len; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2066 | } BounceBuffer; |
| 2067 | |
| 2068 | static BounceBuffer bounce; |
| 2069 | |
| 2070 | typedef struct MapClient { |
| 2071 | void *opaque; |
| 2072 | void (*callback)(void *opaque); |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2073 | QLIST_ENTRY(MapClient) link; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2074 | } MapClient; |
| 2075 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2076 | static QLIST_HEAD(map_client_list, MapClient) map_client_list |
| 2077 | = QLIST_HEAD_INITIALIZER(map_client_list); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2078 | |
| 2079 | void *cpu_register_map_client(void *opaque, void (*callback)(void *opaque)) |
| 2080 | { |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2081 | MapClient *client = g_malloc(sizeof(*client)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2082 | |
| 2083 | client->opaque = opaque; |
| 2084 | client->callback = callback; |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2085 | QLIST_INSERT_HEAD(&map_client_list, client, link); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2086 | return client; |
| 2087 | } |
| 2088 | |
David 'Digit' Turner | 8b87a1d | 2014-03-14 16:44:00 +0100 | [diff] [blame] | 2089 | static void cpu_unregister_map_client(void *_client) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2090 | { |
| 2091 | MapClient *client = (MapClient *)_client; |
| 2092 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2093 | QLIST_REMOVE(client, link); |
David 'Digit' Turner | aa8236d | 2014-01-10 17:02:29 +0100 | [diff] [blame] | 2094 | g_free(client); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2095 | } |
| 2096 | |
| 2097 | static void cpu_notify_map_clients(void) |
| 2098 | { |
| 2099 | MapClient *client; |
| 2100 | |
David 'Digit' Turner | a5d4120 | 2010-05-10 18:37:10 -0700 | [diff] [blame] | 2101 | while (!QLIST_EMPTY(&map_client_list)) { |
| 2102 | client = QLIST_FIRST(&map_client_list); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2103 | client->callback(client->opaque); |
David 'Digit' Turner | 8b87a1d | 2014-03-14 16:44:00 +0100 | [diff] [blame] | 2104 | cpu_unregister_map_client(client); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2105 | } |
| 2106 | } |
| 2107 | |
| 2108 | /* Map a physical memory region into a host virtual address. |
| 2109 | * May map a subset of the requested range, given by and returned in *plen. |
| 2110 | * May return NULL if resources needed to perform the mapping are exhausted. |
| 2111 | * Use only for reads OR writes - not for read-modify-write operations. |
| 2112 | * Use cpu_register_map_client() to know when retrying the map operation is |
| 2113 | * likely to succeed. |
| 2114 | */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2115 | void *cpu_physical_memory_map(hwaddr addr, |
| 2116 | hwaddr *plen, |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2117 | int is_write) |
| 2118 | { |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2119 | hwaddr len = *plen; |
| 2120 | hwaddr done = 0; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2121 | int l; |
| 2122 | uint8_t *ret = NULL; |
| 2123 | uint8_t *ptr; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2124 | hwaddr page; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2125 | unsigned long pd; |
| 2126 | PhysPageDesc *p; |
| 2127 | unsigned long addr1; |
| 2128 | |
| 2129 | while (len > 0) { |
| 2130 | page = addr & TARGET_PAGE_MASK; |
| 2131 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2132 | if (l > len) |
| 2133 | l = len; |
| 2134 | p = phys_page_find(page >> TARGET_PAGE_BITS); |
| 2135 | if (!p) { |
| 2136 | pd = IO_MEM_UNASSIGNED; |
| 2137 | } else { |
| 2138 | pd = p->phys_offset; |
| 2139 | } |
| 2140 | |
| 2141 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2142 | if (done || bounce.buffer) { |
| 2143 | break; |
| 2144 | } |
| 2145 | bounce.buffer = qemu_memalign(TARGET_PAGE_SIZE, TARGET_PAGE_SIZE); |
| 2146 | bounce.addr = addr; |
| 2147 | bounce.len = l; |
| 2148 | if (!is_write) { |
David 'Digit' Turner | 8b87a1d | 2014-03-14 16:44:00 +0100 | [diff] [blame] | 2149 | cpu_physical_memory_read(addr, bounce.buffer, l); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2150 | } |
| 2151 | ptr = bounce.buffer; |
| 2152 | } else { |
| 2153 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2154 | ptr = qemu_get_ram_ptr(addr1); |
| 2155 | } |
| 2156 | if (!done) { |
| 2157 | ret = ptr; |
| 2158 | } else if (ret + done != ptr) { |
| 2159 | break; |
| 2160 | } |
| 2161 | |
| 2162 | len -= l; |
| 2163 | addr += l; |
| 2164 | done += l; |
| 2165 | } |
| 2166 | *plen = done; |
| 2167 | return ret; |
| 2168 | } |
| 2169 | |
| 2170 | /* Unmaps a memory region previously mapped by cpu_physical_memory_map(). |
| 2171 | * Will also mark the memory as dirty if is_write == 1. access_len gives |
| 2172 | * the amount of memory that was actually read or written by the caller. |
| 2173 | */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2174 | void cpu_physical_memory_unmap(void *buffer, hwaddr len, |
| 2175 | int is_write, hwaddr access_len) |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2176 | { |
| 2177 | if (buffer != bounce.buffer) { |
| 2178 | if (is_write) { |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2179 | ram_addr_t addr1 = qemu_ram_addr_from_host_nofail(buffer); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2180 | while (access_len) { |
| 2181 | unsigned l; |
| 2182 | l = TARGET_PAGE_SIZE; |
| 2183 | if (l > access_len) |
| 2184 | l = access_len; |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2185 | invalidate_and_set_dirty(addr1, l); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2186 | addr1 += l; |
| 2187 | access_len -= l; |
| 2188 | } |
| 2189 | } |
| 2190 | return; |
| 2191 | } |
| 2192 | if (is_write) { |
| 2193 | cpu_physical_memory_write(bounce.addr, bounce.buffer, access_len); |
| 2194 | } |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2195 | qemu_vfree(bounce.buffer); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2196 | bounce.buffer = NULL; |
| 2197 | cpu_notify_map_clients(); |
| 2198 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2199 | |
| 2200 | /* warning: addr must be aligned */ |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2201 | static inline uint32_t ldl_phys_internal(hwaddr addr, |
| 2202 | enum device_endian endian) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2203 | { |
| 2204 | int io_index; |
| 2205 | uint8_t *ptr; |
| 2206 | uint32_t val; |
| 2207 | unsigned long pd; |
| 2208 | PhysPageDesc *p; |
| 2209 | |
| 2210 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2211 | if (!p) { |
| 2212 | pd = IO_MEM_UNASSIGNED; |
| 2213 | } else { |
| 2214 | pd = p->phys_offset; |
| 2215 | } |
| 2216 | |
| 2217 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2218 | !(pd & IO_MEM_ROMD)) { |
| 2219 | /* I/O case */ |
| 2220 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2221 | if (p) |
| 2222 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2223 | val = io_mem_read(io_index, addr, 4); |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2224 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2225 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2226 | val = bswap32(val); |
| 2227 | } |
| 2228 | #else |
| 2229 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2230 | val = bswap32(val); |
| 2231 | } |
| 2232 | #endif |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2233 | } else { |
| 2234 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2235 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2236 | (addr & ~TARGET_PAGE_MASK); |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2237 | switch (endian) { |
| 2238 | case DEVICE_LITTLE_ENDIAN: |
| 2239 | val = ldl_le_p(ptr); |
| 2240 | break; |
| 2241 | case DEVICE_BIG_ENDIAN: |
| 2242 | val = ldl_be_p(ptr); |
| 2243 | break; |
| 2244 | default: |
| 2245 | val = ldl_p(ptr); |
| 2246 | break; |
| 2247 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2248 | } |
| 2249 | return val; |
| 2250 | } |
| 2251 | |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2252 | uint32_t ldl_phys(hwaddr addr) |
| 2253 | { |
| 2254 | return ldl_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2255 | } |
| 2256 | |
| 2257 | uint32_t ldl_le_phys(hwaddr addr) |
| 2258 | { |
| 2259 | return ldl_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2260 | } |
| 2261 | |
| 2262 | uint32_t ldl_be_phys(hwaddr addr) |
| 2263 | { |
| 2264 | return ldl_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2265 | } |
| 2266 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2267 | /* warning: addr must be aligned */ |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2268 | static inline uint64_t ldq_phys_internal(hwaddr addr, |
| 2269 | enum device_endian endian) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2270 | { |
| 2271 | int io_index; |
| 2272 | uint8_t *ptr; |
| 2273 | uint64_t val; |
| 2274 | unsigned long pd; |
| 2275 | PhysPageDesc *p; |
| 2276 | |
| 2277 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2278 | if (!p) { |
| 2279 | pd = IO_MEM_UNASSIGNED; |
| 2280 | } else { |
| 2281 | pd = p->phys_offset; |
| 2282 | } |
| 2283 | |
| 2284 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2285 | !(pd & IO_MEM_ROMD)) { |
| 2286 | /* I/O case */ |
| 2287 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2288 | if (p) |
| 2289 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2290 | |
| 2291 | /* XXX This is broken when device endian != cpu endian. |
| 2292 | Fix and add "endian" variable check */ |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2293 | #ifdef TARGET_WORDS_BIGENDIAN |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2294 | val = (uint64_t)io_mem_read(io_index, addr, 4) << 32; |
| 2295 | val |= io_mem_read(io_index, addr + 4, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2296 | #else |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2297 | val = io_mem_read(io_index, addr, 4); |
| 2298 | val |= (uint64_t)io_mem_read(io_index, addr + 4, 4) << 32; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2299 | #endif |
| 2300 | } else { |
| 2301 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2302 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2303 | (addr & ~TARGET_PAGE_MASK); |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2304 | switch (endian) { |
| 2305 | case DEVICE_LITTLE_ENDIAN: |
| 2306 | val = ldq_le_p(ptr); |
| 2307 | break; |
| 2308 | case DEVICE_BIG_ENDIAN: |
| 2309 | val = ldq_be_p(ptr); |
| 2310 | break; |
| 2311 | default: |
| 2312 | val = ldq_p(ptr); |
| 2313 | break; |
| 2314 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2315 | } |
| 2316 | return val; |
| 2317 | } |
| 2318 | |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2319 | uint64_t ldq_phys(hwaddr addr) |
| 2320 | { |
| 2321 | return ldq_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2322 | } |
| 2323 | |
| 2324 | uint64_t ldq_le_phys(hwaddr addr) |
| 2325 | { |
| 2326 | return ldq_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2327 | } |
| 2328 | |
| 2329 | uint64_t ldq_be_phys(hwaddr addr) |
| 2330 | { |
| 2331 | return ldq_phys_internal(addr, DEVICE_BIG_ENDIAN); |
| 2332 | } |
| 2333 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2334 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2335 | uint32_t ldub_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2336 | { |
| 2337 | uint8_t val; |
| 2338 | cpu_physical_memory_read(addr, &val, 1); |
| 2339 | return val; |
| 2340 | } |
| 2341 | |
| 2342 | /* XXX: optimize */ |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2343 | static inline uint32_t lduw_phys_internal(hwaddr addr, |
| 2344 | enum device_endian endian) |
| 2345 | { |
| 2346 | int io_index; |
| 2347 | uint8_t *ptr; |
| 2348 | uint64_t val; |
| 2349 | unsigned long pd; |
| 2350 | PhysPageDesc *p; |
| 2351 | |
| 2352 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2353 | if (!p) { |
| 2354 | pd = IO_MEM_UNASSIGNED; |
| 2355 | } else { |
| 2356 | pd = p->phys_offset; |
| 2357 | } |
| 2358 | |
| 2359 | if ((pd & ~TARGET_PAGE_MASK) > IO_MEM_ROM && |
| 2360 | !(pd & IO_MEM_ROMD)) { |
| 2361 | /* I/O case */ |
| 2362 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
| 2363 | if (p) |
| 2364 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2365 | val = io_mem_read(io_index, addr, 2); |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2366 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2367 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2368 | val = bswap16(val); |
| 2369 | } |
| 2370 | #else |
| 2371 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2372 | val = bswap16(val); |
| 2373 | } |
| 2374 | #endif |
| 2375 | } else { |
| 2376 | /* RAM case */ |
| 2377 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
| 2378 | (addr & ~TARGET_PAGE_MASK); |
| 2379 | switch (endian) { |
| 2380 | case DEVICE_LITTLE_ENDIAN: |
| 2381 | val = lduw_le_p(ptr); |
| 2382 | break; |
| 2383 | case DEVICE_BIG_ENDIAN: |
| 2384 | val = lduw_be_p(ptr); |
| 2385 | break; |
| 2386 | default: |
| 2387 | val = lduw_p(ptr); |
| 2388 | break; |
| 2389 | } |
| 2390 | } |
| 2391 | return val; |
| 2392 | } |
| 2393 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2394 | uint32_t lduw_phys(hwaddr addr) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2395 | { |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2396 | return lduw_phys_internal(addr, DEVICE_NATIVE_ENDIAN); |
| 2397 | } |
| 2398 | |
| 2399 | uint32_t lduw_le_phys(hwaddr addr) |
| 2400 | { |
| 2401 | return lduw_phys_internal(addr, DEVICE_LITTLE_ENDIAN); |
| 2402 | } |
| 2403 | |
| 2404 | uint32_t lduw_be_phys(hwaddr addr) |
| 2405 | { |
| 2406 | return lduw_phys_internal(addr, DEVICE_BIG_ENDIAN); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2407 | } |
| 2408 | |
| 2409 | /* warning: addr must be aligned. The ram page is not masked as dirty |
| 2410 | and the code inside is not invalidated. It is useful if the dirty |
| 2411 | bits are used to track modified PTEs */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2412 | void stl_phys_notdirty(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2413 | { |
| 2414 | int io_index; |
| 2415 | uint8_t *ptr; |
| 2416 | unsigned long pd; |
| 2417 | PhysPageDesc *p; |
| 2418 | |
| 2419 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2420 | if (!p) { |
| 2421 | pd = IO_MEM_UNASSIGNED; |
| 2422 | } else { |
| 2423 | pd = p->phys_offset; |
| 2424 | } |
| 2425 | |
| 2426 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2427 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2428 | if (p) |
| 2429 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2430 | io_mem_write(io_index, addr, val, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2431 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2432 | unsigned long addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2433 | ptr = qemu_get_ram_ptr(addr1); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2434 | stl_p(ptr, val); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2435 | |
| 2436 | if (unlikely(in_migration)) { |
| 2437 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 2438 | /* invalidate code */ |
| 2439 | tb_invalidate_phys_page_range(addr1, addr1 + 4, 0); |
| 2440 | /* set dirty bit */ |
David 'Digit' Turner | 280afa0 | 2011-05-11 17:37:44 +0200 | [diff] [blame] | 2441 | cpu_physical_memory_set_dirty_flags( |
| 2442 | addr1, (0xff & ~CODE_DIRTY_FLAG)); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2443 | } |
| 2444 | } |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2445 | } |
| 2446 | } |
| 2447 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2448 | void stq_phys_notdirty(hwaddr addr, uint64_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2449 | { |
| 2450 | int io_index; |
| 2451 | uint8_t *ptr; |
| 2452 | unsigned long pd; |
| 2453 | PhysPageDesc *p; |
| 2454 | |
| 2455 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2456 | if (!p) { |
| 2457 | pd = IO_MEM_UNASSIGNED; |
| 2458 | } else { |
| 2459 | pd = p->phys_offset; |
| 2460 | } |
| 2461 | |
| 2462 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2463 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2464 | if (p) |
| 2465 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2466 | #ifdef TARGET_WORDS_BIGENDIAN |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2467 | io_mem_write(io_index, addr, val >> 32, 4); |
| 2468 | io_mem_write(io_index, addr + 4, val, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2469 | #else |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2470 | io_mem_write(io_index, addr, val, 4); |
| 2471 | io_mem_write(io_index, addr + 4, val >> 32, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2472 | #endif |
| 2473 | } else { |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2474 | ptr = qemu_get_ram_ptr(pd & TARGET_PAGE_MASK) + |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2475 | (addr & ~TARGET_PAGE_MASK); |
| 2476 | stq_p(ptr, val); |
| 2477 | } |
| 2478 | } |
| 2479 | |
| 2480 | /* warning: addr must be aligned */ |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2481 | static inline void stl_phys_internal(hwaddr addr, uint32_t val, |
| 2482 | enum device_endian endian) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2483 | { |
| 2484 | int io_index; |
| 2485 | uint8_t *ptr; |
| 2486 | unsigned long pd; |
| 2487 | PhysPageDesc *p; |
| 2488 | |
| 2489 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2490 | if (!p) { |
| 2491 | pd = IO_MEM_UNASSIGNED; |
| 2492 | } else { |
| 2493 | pd = p->phys_offset; |
| 2494 | } |
| 2495 | |
| 2496 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2497 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2498 | if (p) |
| 2499 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2500 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2501 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2502 | val = bswap32(val); |
| 2503 | } |
| 2504 | #else |
| 2505 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2506 | val = bswap32(val); |
| 2507 | } |
| 2508 | #endif |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2509 | io_mem_write(io_index, addr, val, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2510 | } else { |
| 2511 | unsigned long addr1; |
| 2512 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2513 | /* RAM case */ |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2514 | ptr = qemu_get_ram_ptr(addr1); |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2515 | switch (endian) { |
| 2516 | case DEVICE_LITTLE_ENDIAN: |
| 2517 | stl_le_p(ptr, val); |
| 2518 | break; |
| 2519 | case DEVICE_BIG_ENDIAN: |
| 2520 | stl_be_p(ptr, val); |
| 2521 | break; |
| 2522 | default: |
| 2523 | stl_p(ptr, val); |
| 2524 | break; |
| 2525 | } |
Pete Delaney | d09d766 | 2013-03-28 19:53:13 -0700 | [diff] [blame] | 2526 | invalidate_and_set_dirty(addr1, 4); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2527 | } |
| 2528 | } |
| 2529 | |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2530 | void stl_phys(hwaddr addr, uint32_t val) |
| 2531 | { |
| 2532 | stl_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
| 2533 | } |
| 2534 | |
| 2535 | void stl_le_phys(hwaddr addr, uint32_t val) |
| 2536 | { |
| 2537 | stl_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
| 2538 | } |
| 2539 | |
| 2540 | void stl_be_phys(hwaddr addr, uint32_t val) |
| 2541 | { |
| 2542 | stl_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
| 2543 | } |
| 2544 | |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2545 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2546 | void stb_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2547 | { |
| 2548 | uint8_t v = val; |
| 2549 | cpu_physical_memory_write(addr, &v, 1); |
| 2550 | } |
| 2551 | |
| 2552 | /* XXX: optimize */ |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2553 | static inline void stw_phys_internal(hwaddr addr, uint32_t val, |
| 2554 | enum device_endian endian) |
| 2555 | { |
| 2556 | int io_index; |
| 2557 | uint8_t *ptr; |
| 2558 | unsigned long pd; |
| 2559 | PhysPageDesc *p; |
| 2560 | |
| 2561 | p = phys_page_find(addr >> TARGET_PAGE_BITS); |
| 2562 | if (!p) { |
| 2563 | pd = IO_MEM_UNASSIGNED; |
| 2564 | } else { |
| 2565 | pd = p->phys_offset; |
| 2566 | } |
| 2567 | |
| 2568 | if ((pd & ~TARGET_PAGE_MASK) != IO_MEM_RAM) { |
| 2569 | io_index = (pd >> IO_MEM_SHIFT) & (IO_MEM_NB_ENTRIES - 1); |
| 2570 | if (p) |
| 2571 | addr = (addr & ~TARGET_PAGE_MASK) + p->region_offset; |
| 2572 | #if defined(TARGET_WORDS_BIGENDIAN) |
| 2573 | if (endian == DEVICE_LITTLE_ENDIAN) { |
| 2574 | val = bswap16(val); |
| 2575 | } |
| 2576 | #else |
| 2577 | if (endian == DEVICE_BIG_ENDIAN) { |
| 2578 | val = bswap16(val); |
| 2579 | } |
| 2580 | #endif |
David 'Digit' Turner | fdec1f1 | 2014-03-21 11:49:03 +0100 | [diff] [blame] | 2581 | io_mem_write(io_index, addr, val, 2); |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2582 | } else { |
| 2583 | unsigned long addr1; |
| 2584 | addr1 = (pd & TARGET_PAGE_MASK) + (addr & ~TARGET_PAGE_MASK); |
| 2585 | /* RAM case */ |
| 2586 | ptr = qemu_get_ram_ptr(addr1); |
| 2587 | switch (endian) { |
| 2588 | case DEVICE_LITTLE_ENDIAN: |
| 2589 | stw_le_p(ptr, val); |
| 2590 | break; |
| 2591 | case DEVICE_BIG_ENDIAN: |
| 2592 | stw_be_p(ptr, val); |
| 2593 | break; |
| 2594 | default: |
| 2595 | stw_p(ptr, val); |
| 2596 | break; |
| 2597 | } |
| 2598 | if (!cpu_physical_memory_is_dirty(addr1)) { |
| 2599 | /* invalidate code */ |
| 2600 | tb_invalidate_phys_page_range(addr1, addr1 + 2, 0); |
| 2601 | /* set dirty bit */ |
| 2602 | cpu_physical_memory_set_dirty_flags(addr1, |
| 2603 | (0xff & ~CODE_DIRTY_FLAG)); |
| 2604 | } |
| 2605 | } |
| 2606 | } |
| 2607 | |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2608 | void stw_phys(hwaddr addr, uint32_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2609 | { |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2610 | stw_phys_internal(addr, val, DEVICE_NATIVE_ENDIAN); |
| 2611 | } |
| 2612 | |
| 2613 | void stw_le_phys(hwaddr addr, uint32_t val) |
| 2614 | { |
| 2615 | stw_phys_internal(addr, val, DEVICE_LITTLE_ENDIAN); |
| 2616 | } |
| 2617 | |
| 2618 | void stw_be_phys(hwaddr addr, uint32_t val) |
| 2619 | { |
| 2620 | stw_phys_internal(addr, val, DEVICE_BIG_ENDIAN); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2621 | } |
| 2622 | |
| 2623 | /* XXX: optimize */ |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2624 | void stq_phys(hwaddr addr, uint64_t val) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2625 | { |
| 2626 | val = tswap64(val); |
David 'Digit' Turner | 2afeb4c | 2014-03-18 16:50:21 +0100 | [diff] [blame] | 2627 | cpu_physical_memory_write(addr, &val, 8); |
| 2628 | } |
| 2629 | |
| 2630 | |
| 2631 | void stq_le_phys(hwaddr addr, uint64_t val) |
| 2632 | { |
| 2633 | val = cpu_to_le64(val); |
| 2634 | cpu_physical_memory_write(addr, &val, 8); |
| 2635 | } |
| 2636 | |
| 2637 | void stq_be_phys(hwaddr addr, uint64_t val) |
| 2638 | { |
| 2639 | val = cpu_to_be64(val); |
| 2640 | cpu_physical_memory_write(addr, &val, 8); |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2641 | } |
| 2642 | |
| 2643 | #endif |
| 2644 | |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2645 | /* virtual memory access for debug (includes writing to ROM) */ |
David 'Digit' Turner | aaef275 | 2014-03-25 17:19:27 +0100 | [diff] [blame] | 2646 | int cpu_memory_rw_debug(CPUState *cpu, target_ulong addr, |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2647 | void *buf, int len, int is_write) |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2648 | { |
| 2649 | int l; |
David 'Digit' Turner | bcde109 | 2014-01-09 23:19:19 +0100 | [diff] [blame] | 2650 | hwaddr phys_addr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2651 | target_ulong page; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2652 | uint8_t* buf8 = (uint8_t*)buf; |
David 'Digit' Turner | aaef275 | 2014-03-25 17:19:27 +0100 | [diff] [blame] | 2653 | CPUArchState *env = cpu->env_ptr; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2654 | |
| 2655 | while (len > 0) { |
| 2656 | page = addr & TARGET_PAGE_MASK; |
| 2657 | phys_addr = cpu_get_phys_page_debug(env, page); |
| 2658 | /* if no physical page mapped, return an error */ |
| 2659 | if (phys_addr == -1) |
| 2660 | return -1; |
| 2661 | l = (page + TARGET_PAGE_SIZE) - addr; |
| 2662 | if (l > len) |
| 2663 | l = len; |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2664 | phys_addr += (addr & ~TARGET_PAGE_MASK); |
| 2665 | #if !defined(CONFIG_USER_ONLY) |
| 2666 | if (is_write) |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2667 | cpu_physical_memory_write_rom(phys_addr, buf8, l); |
David 'Digit' Turner | 5d8f37a | 2009-09-14 14:32:27 -0700 | [diff] [blame] | 2668 | else |
| 2669 | #endif |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2670 | 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] | 2671 | len -= l; |
David 'Digit' Turner | a2c14f9 | 2014-02-04 01:02:30 +0100 | [diff] [blame] | 2672 | buf8 += l; |
The Android Open Source Project | 8b23a6c | 2009-03-03 19:30:32 -0800 | [diff] [blame] | 2673 | addr += l; |
| 2674 | } |
| 2675 | return 0; |
| 2676 | } |