Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1 | /* |
| 2 | * Physical memory management |
| 3 | * |
| 4 | * Copyright 2011 Red Hat, Inc. and/or its affiliates |
| 5 | * |
| 6 | * Authors: |
| 7 | * Avi Kivity <avi@redhat.com> |
| 8 | * |
| 9 | * This work is licensed under the terms of the GNU GPL, version 2. See |
| 10 | * the COPYING file in the top-level directory. |
| 11 | * |
| 12 | */ |
| 13 | |
| 14 | #include "memory.h" |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 15 | #include "exec-memory.h" |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 16 | #include "ioport.h" |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 17 | #include "bitops.h" |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 18 | #include "kvm.h" |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 19 | #include <assert.h> |
| 20 | |
Avi Kivity | 67d95c1 | 2011-12-15 15:25:22 +0200 | [diff] [blame] | 21 | #define WANT_EXEC_OBSOLETE |
| 22 | #include "exec-obsolete.h" |
| 23 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 24 | unsigned memory_region_transaction_depth = 0; |
Avi Kivity | e87c099 | 2011-09-14 12:16:20 +0300 | [diff] [blame] | 25 | static bool memory_region_update_pending = false; |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 26 | static bool global_dirty_log = false; |
| 27 | |
| 28 | static QLIST_HEAD(, MemoryListener) memory_listeners |
| 29 | = QLIST_HEAD_INITIALIZER(memory_listeners); |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 30 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 31 | typedef struct AddrRange AddrRange; |
| 32 | |
Avi Kivity | 8417ceb | 2011-08-03 11:56:14 +0300 | [diff] [blame] | 33 | /* |
| 34 | * Note using signed integers limits us to physical addresses at most |
| 35 | * 63 bits wide. They are needed for negative offsetting in aliases |
| 36 | * (large MemoryRegion::alias_offset). |
| 37 | */ |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 38 | struct AddrRange { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 39 | Int128 start; |
| 40 | Int128 size; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 41 | }; |
| 42 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 43 | static AddrRange addrrange_make(Int128 start, Int128 size) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 44 | { |
| 45 | return (AddrRange) { start, size }; |
| 46 | } |
| 47 | |
| 48 | static bool addrrange_equal(AddrRange r1, AddrRange r2) |
| 49 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 50 | return int128_eq(r1.start, r2.start) && int128_eq(r1.size, r2.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 51 | } |
| 52 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 53 | static Int128 addrrange_end(AddrRange r) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 54 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 55 | return int128_add(r.start, r.size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 56 | } |
| 57 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 58 | static AddrRange addrrange_shift(AddrRange range, Int128 delta) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 59 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 60 | int128_addto(&range.start, delta); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 61 | return range; |
| 62 | } |
| 63 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 64 | static bool addrrange_contains(AddrRange range, Int128 addr) |
| 65 | { |
| 66 | return int128_ge(addr, range.start) |
| 67 | && int128_lt(addr, addrrange_end(range)); |
| 68 | } |
| 69 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 70 | static bool addrrange_intersects(AddrRange r1, AddrRange r2) |
| 71 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 72 | return addrrange_contains(r1, r2.start) |
| 73 | || addrrange_contains(r2, r1.start); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 74 | } |
| 75 | |
| 76 | static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2) |
| 77 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 78 | Int128 start = int128_max(r1.start, r2.start); |
| 79 | Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2)); |
| 80 | return addrrange_make(start, int128_sub(end, start)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 81 | } |
| 82 | |
| 83 | struct CoalescedMemoryRange { |
| 84 | AddrRange addr; |
| 85 | QTAILQ_ENTRY(CoalescedMemoryRange) link; |
| 86 | }; |
| 87 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 88 | struct MemoryRegionIoeventfd { |
| 89 | AddrRange addr; |
| 90 | bool match_data; |
| 91 | uint64_t data; |
| 92 | int fd; |
| 93 | }; |
| 94 | |
| 95 | static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a, |
| 96 | MemoryRegionIoeventfd b) |
| 97 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 98 | if (int128_lt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 99 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 100 | } else if (int128_gt(a.addr.start, b.addr.start)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 101 | return false; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 102 | } else if (int128_lt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 103 | return true; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 104 | } else if (int128_gt(a.addr.size, b.addr.size)) { |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 105 | return false; |
| 106 | } else if (a.match_data < b.match_data) { |
| 107 | return true; |
| 108 | } else if (a.match_data > b.match_data) { |
| 109 | return false; |
| 110 | } else if (a.match_data) { |
| 111 | if (a.data < b.data) { |
| 112 | return true; |
| 113 | } else if (a.data > b.data) { |
| 114 | return false; |
| 115 | } |
| 116 | } |
| 117 | if (a.fd < b.fd) { |
| 118 | return true; |
| 119 | } else if (a.fd > b.fd) { |
| 120 | return false; |
| 121 | } |
| 122 | return false; |
| 123 | } |
| 124 | |
| 125 | static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a, |
| 126 | MemoryRegionIoeventfd b) |
| 127 | { |
| 128 | return !memory_region_ioeventfd_before(a, b) |
| 129 | && !memory_region_ioeventfd_before(b, a); |
| 130 | } |
| 131 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 132 | typedef struct FlatRange FlatRange; |
| 133 | typedef struct FlatView FlatView; |
| 134 | |
| 135 | /* Range of memory in the global map. Addresses are absolute. */ |
| 136 | struct FlatRange { |
| 137 | MemoryRegion *mr; |
| 138 | target_phys_addr_t offset_in_region; |
| 139 | AddrRange addr; |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 140 | uint8_t dirty_log_mask; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 141 | bool readable; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 142 | bool readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 143 | }; |
| 144 | |
| 145 | /* Flattened global view of current active memory hierarchy. Kept in sorted |
| 146 | * order. |
| 147 | */ |
| 148 | struct FlatView { |
| 149 | FlatRange *ranges; |
| 150 | unsigned nr; |
| 151 | unsigned nr_allocated; |
| 152 | }; |
| 153 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 154 | typedef struct AddressSpace AddressSpace; |
| 155 | typedef struct AddressSpaceOps AddressSpaceOps; |
| 156 | |
| 157 | /* A system address space - I/O, memory, etc. */ |
| 158 | struct AddressSpace { |
| 159 | const AddressSpaceOps *ops; |
| 160 | MemoryRegion *root; |
| 161 | FlatView current_map; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 162 | int ioeventfd_nb; |
| 163 | MemoryRegionIoeventfd *ioeventfds; |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 164 | }; |
| 165 | |
| 166 | struct AddressSpaceOps { |
| 167 | void (*range_add)(AddressSpace *as, FlatRange *fr); |
| 168 | void (*range_del)(AddressSpace *as, FlatRange *fr); |
| 169 | void (*log_start)(AddressSpace *as, FlatRange *fr); |
| 170 | void (*log_stop)(AddressSpace *as, FlatRange *fr); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 171 | void (*ioeventfd_add)(AddressSpace *as, MemoryRegionIoeventfd *fd); |
| 172 | void (*ioeventfd_del)(AddressSpace *as, MemoryRegionIoeventfd *fd); |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 173 | }; |
| 174 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 175 | #define FOR_EACH_FLAT_RANGE(var, view) \ |
| 176 | for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var) |
| 177 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 178 | static bool flatrange_equal(FlatRange *a, FlatRange *b) |
| 179 | { |
| 180 | return a->mr == b->mr |
| 181 | && addrrange_equal(a->addr, b->addr) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 182 | && a->offset_in_region == b->offset_in_region |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 183 | && a->readable == b->readable |
| 184 | && a->readonly == b->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 185 | } |
| 186 | |
| 187 | static void flatview_init(FlatView *view) |
| 188 | { |
| 189 | view->ranges = NULL; |
| 190 | view->nr = 0; |
| 191 | view->nr_allocated = 0; |
| 192 | } |
| 193 | |
| 194 | /* Insert a range into a given position. Caller is responsible for maintaining |
| 195 | * sorting order. |
| 196 | */ |
| 197 | static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range) |
| 198 | { |
| 199 | if (view->nr == view->nr_allocated) { |
| 200 | view->nr_allocated = MAX(2 * view->nr, 10); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 201 | view->ranges = g_realloc(view->ranges, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 202 | view->nr_allocated * sizeof(*view->ranges)); |
| 203 | } |
| 204 | memmove(view->ranges + pos + 1, view->ranges + pos, |
| 205 | (view->nr - pos) * sizeof(FlatRange)); |
| 206 | view->ranges[pos] = *range; |
| 207 | ++view->nr; |
| 208 | } |
| 209 | |
| 210 | static void flatview_destroy(FlatView *view) |
| 211 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 212 | g_free(view->ranges); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 213 | } |
| 214 | |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 215 | static bool can_merge(FlatRange *r1, FlatRange *r2) |
| 216 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 217 | return int128_eq(addrrange_end(r1->addr), r2->addr.start) |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 218 | && r1->mr == r2->mr |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 219 | && int128_eq(int128_add(int128_make64(r1->offset_in_region), |
| 220 | r1->addr.size), |
| 221 | int128_make64(r2->offset_in_region)) |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 222 | && r1->dirty_log_mask == r2->dirty_log_mask |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 223 | && r1->readable == r2->readable |
| 224 | && r1->readonly == r2->readonly; |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 225 | } |
| 226 | |
| 227 | /* Attempt to simplify a view by merging ajacent ranges */ |
| 228 | static void flatview_simplify(FlatView *view) |
| 229 | { |
| 230 | unsigned i, j; |
| 231 | |
| 232 | i = 0; |
| 233 | while (i < view->nr) { |
| 234 | j = i + 1; |
| 235 | while (j < view->nr |
| 236 | && can_merge(&view->ranges[j-1], &view->ranges[j])) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 237 | int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size); |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 238 | ++j; |
| 239 | } |
| 240 | ++i; |
| 241 | memmove(&view->ranges[i], &view->ranges[j], |
| 242 | (view->nr - j) * sizeof(view->ranges[j])); |
| 243 | view->nr -= j - i; |
| 244 | } |
| 245 | } |
| 246 | |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 247 | static void memory_region_read_accessor(void *opaque, |
| 248 | target_phys_addr_t addr, |
| 249 | uint64_t *value, |
| 250 | unsigned size, |
| 251 | unsigned shift, |
| 252 | uint64_t mask) |
| 253 | { |
| 254 | MemoryRegion *mr = opaque; |
| 255 | uint64_t tmp; |
| 256 | |
| 257 | tmp = mr->ops->read(mr->opaque, addr, size); |
| 258 | *value |= (tmp & mask) << shift; |
| 259 | } |
| 260 | |
| 261 | static void memory_region_write_accessor(void *opaque, |
| 262 | target_phys_addr_t addr, |
| 263 | uint64_t *value, |
| 264 | unsigned size, |
| 265 | unsigned shift, |
| 266 | uint64_t mask) |
| 267 | { |
| 268 | MemoryRegion *mr = opaque; |
| 269 | uint64_t tmp; |
| 270 | |
| 271 | tmp = (*value >> shift) & mask; |
| 272 | mr->ops->write(mr->opaque, addr, tmp, size); |
| 273 | } |
| 274 | |
| 275 | static void access_with_adjusted_size(target_phys_addr_t addr, |
| 276 | uint64_t *value, |
| 277 | unsigned size, |
| 278 | unsigned access_size_min, |
| 279 | unsigned access_size_max, |
| 280 | void (*access)(void *opaque, |
| 281 | target_phys_addr_t addr, |
| 282 | uint64_t *value, |
| 283 | unsigned size, |
| 284 | unsigned shift, |
| 285 | uint64_t mask), |
| 286 | void *opaque) |
| 287 | { |
| 288 | uint64_t access_mask; |
| 289 | unsigned access_size; |
| 290 | unsigned i; |
| 291 | |
| 292 | if (!access_size_min) { |
| 293 | access_size_min = 1; |
| 294 | } |
| 295 | if (!access_size_max) { |
| 296 | access_size_max = 4; |
| 297 | } |
| 298 | access_size = MAX(MIN(size, access_size_max), access_size_min); |
| 299 | access_mask = -1ULL >> (64 - access_size * 8); |
| 300 | for (i = 0; i < size; i += access_size) { |
| 301 | /* FIXME: big-endian support */ |
| 302 | access(opaque, addr + i, value, access_size, i * 8, access_mask); |
| 303 | } |
| 304 | } |
| 305 | |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 306 | static void memory_region_prepare_ram_addr(MemoryRegion *mr); |
| 307 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 308 | static void as_memory_range_add(AddressSpace *as, FlatRange *fr) |
| 309 | { |
| 310 | ram_addr_t phys_offset, region_offset; |
| 311 | |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 312 | memory_region_prepare_ram_addr(fr->mr); |
| 313 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 314 | phys_offset = fr->mr->ram_addr; |
| 315 | region_offset = fr->offset_in_region; |
| 316 | /* cpu_register_physical_memory_log() wants region_offset for |
| 317 | * mmio, but prefers offseting phys_offset for RAM. Humour it. |
| 318 | */ |
| 319 | if ((phys_offset & ~TARGET_PAGE_MASK) <= IO_MEM_ROM) { |
| 320 | phys_offset += region_offset; |
| 321 | region_offset = 0; |
| 322 | } |
| 323 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 324 | if (!fr->readable) { |
Avi Kivity | b5fe14c | 2011-08-29 09:12:49 +0300 | [diff] [blame] | 325 | phys_offset &= ~TARGET_PAGE_MASK & ~IO_MEM_ROMD; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 326 | } |
| 327 | |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 328 | if (fr->readonly) { |
| 329 | phys_offset |= IO_MEM_ROM; |
| 330 | } |
| 331 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 332 | cpu_register_physical_memory_log(int128_get64(fr->addr.start), |
| 333 | int128_get64(fr->addr.size), |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 334 | phys_offset, |
| 335 | region_offset, |
| 336 | fr->dirty_log_mask); |
| 337 | } |
| 338 | |
| 339 | static void as_memory_range_del(AddressSpace *as, FlatRange *fr) |
| 340 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 341 | cpu_register_physical_memory(int128_get64(fr->addr.start), |
| 342 | int128_get64(fr->addr.size), |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 343 | IO_MEM_UNASSIGNED); |
| 344 | } |
| 345 | |
| 346 | static void as_memory_log_start(AddressSpace *as, FlatRange *fr) |
| 347 | { |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 348 | } |
| 349 | |
| 350 | static void as_memory_log_stop(AddressSpace *as, FlatRange *fr) |
| 351 | { |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 352 | } |
| 353 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 354 | static void as_memory_ioeventfd_add(AddressSpace *as, MemoryRegionIoeventfd *fd) |
| 355 | { |
| 356 | int r; |
| 357 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 358 | assert(fd->match_data && int128_get64(fd->addr.size) == 4); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 359 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 360 | r = kvm_set_ioeventfd_mmio_long(fd->fd, int128_get64(fd->addr.start), |
| 361 | fd->data, true); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 362 | if (r < 0) { |
| 363 | abort(); |
| 364 | } |
| 365 | } |
| 366 | |
| 367 | static void as_memory_ioeventfd_del(AddressSpace *as, MemoryRegionIoeventfd *fd) |
| 368 | { |
| 369 | int r; |
| 370 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 371 | r = kvm_set_ioeventfd_mmio_long(fd->fd, int128_get64(fd->addr.start), |
| 372 | fd->data, false); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 373 | if (r < 0) { |
| 374 | abort(); |
| 375 | } |
| 376 | } |
| 377 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 378 | static const AddressSpaceOps address_space_ops_memory = { |
| 379 | .range_add = as_memory_range_add, |
| 380 | .range_del = as_memory_range_del, |
| 381 | .log_start = as_memory_log_start, |
| 382 | .log_stop = as_memory_log_stop, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 383 | .ioeventfd_add = as_memory_ioeventfd_add, |
| 384 | .ioeventfd_del = as_memory_ioeventfd_del, |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 385 | }; |
| 386 | |
| 387 | static AddressSpace address_space_memory = { |
| 388 | .ops = &address_space_ops_memory, |
| 389 | }; |
| 390 | |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 391 | static const MemoryRegionPortio *find_portio(MemoryRegion *mr, uint64_t offset, |
| 392 | unsigned width, bool write) |
| 393 | { |
| 394 | const MemoryRegionPortio *mrp; |
| 395 | |
| 396 | for (mrp = mr->ops->old_portio; mrp->size; ++mrp) { |
| 397 | if (offset >= mrp->offset && offset < mrp->offset + mrp->len |
| 398 | && width == mrp->size |
| 399 | && (write ? (bool)mrp->write : (bool)mrp->read)) { |
| 400 | return mrp; |
| 401 | } |
| 402 | } |
| 403 | return NULL; |
| 404 | } |
| 405 | |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 406 | static void memory_region_iorange_read(IORange *iorange, |
| 407 | uint64_t offset, |
| 408 | unsigned width, |
| 409 | uint64_t *data) |
| 410 | { |
| 411 | MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange); |
| 412 | |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 413 | if (mr->ops->old_portio) { |
| 414 | const MemoryRegionPortio *mrp = find_portio(mr, offset, width, false); |
| 415 | |
| 416 | *data = ((uint64_t)1 << (width * 8)) - 1; |
| 417 | if (mrp) { |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 418 | *data = mrp->read(mr->opaque, offset + mr->offset); |
Jan Kiszka | 03808f5 | 2011-09-18 14:51:58 +0200 | [diff] [blame] | 419 | } else if (width == 2) { |
| 420 | mrp = find_portio(mr, offset, 1, false); |
| 421 | assert(mrp); |
| 422 | *data = mrp->read(mr->opaque, offset + mr->offset) | |
| 423 | (mrp->read(mr->opaque, offset + mr->offset + 1) << 8); |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 424 | } |
| 425 | return; |
| 426 | } |
Avi Kivity | 3a130f4 | 2011-08-11 10:40:26 +0300 | [diff] [blame] | 427 | *data = 0; |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 428 | access_with_adjusted_size(offset + mr->offset, data, width, |
Avi Kivity | 3a130f4 | 2011-08-11 10:40:26 +0300 | [diff] [blame] | 429 | mr->ops->impl.min_access_size, |
| 430 | mr->ops->impl.max_access_size, |
| 431 | memory_region_read_accessor, mr); |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 432 | } |
| 433 | |
| 434 | static void memory_region_iorange_write(IORange *iorange, |
| 435 | uint64_t offset, |
| 436 | unsigned width, |
| 437 | uint64_t data) |
| 438 | { |
| 439 | MemoryRegion *mr = container_of(iorange, MemoryRegion, iorange); |
| 440 | |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 441 | if (mr->ops->old_portio) { |
| 442 | const MemoryRegionPortio *mrp = find_portio(mr, offset, width, true); |
| 443 | |
| 444 | if (mrp) { |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 445 | mrp->write(mr->opaque, offset + mr->offset, data); |
Jan Kiszka | 03808f5 | 2011-09-18 14:51:58 +0200 | [diff] [blame] | 446 | } else if (width == 2) { |
| 447 | mrp = find_portio(mr, offset, 1, false); |
| 448 | assert(mrp); |
| 449 | mrp->write(mr->opaque, offset + mr->offset, data & 0xff); |
| 450 | mrp->write(mr->opaque, offset + mr->offset + 1, data >> 8); |
Avi Kivity | 627a0e9 | 2011-07-26 14:26:09 +0300 | [diff] [blame] | 451 | } |
| 452 | return; |
| 453 | } |
Avi Kivity | 6bf9fd4 | 2011-09-26 14:52:26 +0300 | [diff] [blame] | 454 | access_with_adjusted_size(offset + mr->offset, &data, width, |
Avi Kivity | 3a130f4 | 2011-08-11 10:40:26 +0300 | [diff] [blame] | 455 | mr->ops->impl.min_access_size, |
| 456 | mr->ops->impl.max_access_size, |
| 457 | memory_region_write_accessor, mr); |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 458 | } |
| 459 | |
| 460 | static const IORangeOps memory_region_iorange_ops = { |
| 461 | .read = memory_region_iorange_read, |
| 462 | .write = memory_region_iorange_write, |
| 463 | }; |
| 464 | |
| 465 | static void as_io_range_add(AddressSpace *as, FlatRange *fr) |
| 466 | { |
| 467 | iorange_init(&fr->mr->iorange, &memory_region_iorange_ops, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 468 | int128_get64(fr->addr.start), int128_get64(fr->addr.size)); |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 469 | ioport_register(&fr->mr->iorange); |
| 470 | } |
| 471 | |
| 472 | static void as_io_range_del(AddressSpace *as, FlatRange *fr) |
| 473 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 474 | isa_unassign_ioport(int128_get64(fr->addr.start), |
| 475 | int128_get64(fr->addr.size)); |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 476 | } |
| 477 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 478 | static void as_io_ioeventfd_add(AddressSpace *as, MemoryRegionIoeventfd *fd) |
| 479 | { |
| 480 | int r; |
| 481 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 482 | assert(fd->match_data && int128_get64(fd->addr.size) == 2); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 483 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 484 | r = kvm_set_ioeventfd_pio_word(fd->fd, int128_get64(fd->addr.start), |
| 485 | fd->data, true); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 486 | if (r < 0) { |
| 487 | abort(); |
| 488 | } |
| 489 | } |
| 490 | |
| 491 | static void as_io_ioeventfd_del(AddressSpace *as, MemoryRegionIoeventfd *fd) |
| 492 | { |
| 493 | int r; |
| 494 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 495 | r = kvm_set_ioeventfd_pio_word(fd->fd, int128_get64(fd->addr.start), |
| 496 | fd->data, false); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 497 | if (r < 0) { |
| 498 | abort(); |
| 499 | } |
| 500 | } |
| 501 | |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 502 | static const AddressSpaceOps address_space_ops_io = { |
| 503 | .range_add = as_io_range_add, |
| 504 | .range_del = as_io_range_del, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 505 | .ioeventfd_add = as_io_ioeventfd_add, |
| 506 | .ioeventfd_del = as_io_ioeventfd_del, |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 507 | }; |
| 508 | |
| 509 | static AddressSpace address_space_io = { |
| 510 | .ops = &address_space_ops_io, |
| 511 | }; |
| 512 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 513 | static AddressSpace *memory_region_to_address_space(MemoryRegion *mr) |
| 514 | { |
| 515 | while (mr->parent) { |
| 516 | mr = mr->parent; |
| 517 | } |
| 518 | if (mr == address_space_memory.root) { |
| 519 | return &address_space_memory; |
| 520 | } |
| 521 | if (mr == address_space_io.root) { |
| 522 | return &address_space_io; |
| 523 | } |
| 524 | abort(); |
| 525 | } |
| 526 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 527 | /* Render a memory region into the global view. Ranges in @view obscure |
| 528 | * ranges in @mr. |
| 529 | */ |
| 530 | static void render_memory_region(FlatView *view, |
| 531 | MemoryRegion *mr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 532 | Int128 base, |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 533 | AddrRange clip, |
| 534 | bool readonly) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 535 | { |
| 536 | MemoryRegion *subregion; |
| 537 | unsigned i; |
| 538 | target_phys_addr_t offset_in_region; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 539 | Int128 remain; |
| 540 | Int128 now; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 541 | FlatRange fr; |
| 542 | AddrRange tmp; |
| 543 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 544 | if (!mr->enabled) { |
| 545 | return; |
| 546 | } |
| 547 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 548 | int128_addto(&base, int128_make64(mr->addr)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 549 | readonly |= mr->readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 550 | |
| 551 | tmp = addrrange_make(base, mr->size); |
| 552 | |
| 553 | if (!addrrange_intersects(tmp, clip)) { |
| 554 | return; |
| 555 | } |
| 556 | |
| 557 | clip = addrrange_intersection(tmp, clip); |
| 558 | |
| 559 | if (mr->alias) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 560 | int128_subfrom(&base, int128_make64(mr->alias->addr)); |
| 561 | int128_subfrom(&base, int128_make64(mr->alias_offset)); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 562 | render_memory_region(view, mr->alias, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 563 | return; |
| 564 | } |
| 565 | |
| 566 | /* Render subregions in priority order. */ |
| 567 | QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 568 | render_memory_region(view, subregion, base, clip, readonly); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 569 | } |
| 570 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 571 | if (!mr->terminates) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 572 | return; |
| 573 | } |
| 574 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 575 | offset_in_region = int128_get64(int128_sub(clip.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 576 | base = clip.start; |
| 577 | remain = clip.size; |
| 578 | |
| 579 | /* Render the region itself into any gaps left by the current view. */ |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 580 | for (i = 0; i < view->nr && int128_nz(remain); ++i) { |
| 581 | if (int128_ge(base, addrrange_end(view->ranges[i].addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 582 | continue; |
| 583 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 584 | if (int128_lt(base, view->ranges[i].addr.start)) { |
| 585 | now = int128_min(remain, |
| 586 | int128_sub(view->ranges[i].addr.start, base)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 587 | fr.mr = mr; |
| 588 | fr.offset_in_region = offset_in_region; |
| 589 | fr.addr = addrrange_make(base, now); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 590 | fr.dirty_log_mask = mr->dirty_log_mask; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 591 | fr.readable = mr->readable; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 592 | fr.readonly = readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 593 | flatview_insert(view, i, &fr); |
| 594 | ++i; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 595 | int128_addto(&base, now); |
| 596 | offset_in_region += int128_get64(now); |
| 597 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 598 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 599 | if (int128_eq(base, view->ranges[i].addr.start)) { |
| 600 | now = int128_min(remain, view->ranges[i].addr.size); |
| 601 | int128_addto(&base, now); |
| 602 | offset_in_region += int128_get64(now); |
| 603 | int128_subfrom(&remain, now); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 604 | } |
| 605 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 606 | if (int128_nz(remain)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 607 | fr.mr = mr; |
| 608 | fr.offset_in_region = offset_in_region; |
| 609 | fr.addr = addrrange_make(base, remain); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 610 | fr.dirty_log_mask = mr->dirty_log_mask; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 611 | fr.readable = mr->readable; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 612 | fr.readonly = readonly; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 613 | flatview_insert(view, i, &fr); |
| 614 | } |
| 615 | } |
| 616 | |
| 617 | /* Render a memory topology into a list of disjoint absolute ranges. */ |
| 618 | static FlatView generate_memory_topology(MemoryRegion *mr) |
| 619 | { |
| 620 | FlatView view; |
| 621 | |
| 622 | flatview_init(&view); |
| 623 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 624 | render_memory_region(&view, mr, int128_zero(), |
| 625 | addrrange_make(int128_zero(), int128_2_64()), false); |
Avi Kivity | 3d8e6bf | 2011-07-26 14:26:03 +0300 | [diff] [blame] | 626 | flatview_simplify(&view); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 627 | |
| 628 | return view; |
| 629 | } |
| 630 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 631 | static void address_space_add_del_ioeventfds(AddressSpace *as, |
| 632 | MemoryRegionIoeventfd *fds_new, |
| 633 | unsigned fds_new_nb, |
| 634 | MemoryRegionIoeventfd *fds_old, |
| 635 | unsigned fds_old_nb) |
| 636 | { |
| 637 | unsigned iold, inew; |
| 638 | |
| 639 | /* Generate a symmetric difference of the old and new fd sets, adding |
| 640 | * and deleting as necessary. |
| 641 | */ |
| 642 | |
| 643 | iold = inew = 0; |
| 644 | while (iold < fds_old_nb || inew < fds_new_nb) { |
| 645 | if (iold < fds_old_nb |
| 646 | && (inew == fds_new_nb |
| 647 | || memory_region_ioeventfd_before(fds_old[iold], |
| 648 | fds_new[inew]))) { |
| 649 | as->ops->ioeventfd_del(as, &fds_old[iold]); |
| 650 | ++iold; |
| 651 | } else if (inew < fds_new_nb |
| 652 | && (iold == fds_old_nb |
| 653 | || memory_region_ioeventfd_before(fds_new[inew], |
| 654 | fds_old[iold]))) { |
| 655 | as->ops->ioeventfd_add(as, &fds_new[inew]); |
| 656 | ++inew; |
| 657 | } else { |
| 658 | ++iold; |
| 659 | ++inew; |
| 660 | } |
| 661 | } |
| 662 | } |
| 663 | |
| 664 | static void address_space_update_ioeventfds(AddressSpace *as) |
| 665 | { |
| 666 | FlatRange *fr; |
| 667 | unsigned ioeventfd_nb = 0; |
| 668 | MemoryRegionIoeventfd *ioeventfds = NULL; |
| 669 | AddrRange tmp; |
| 670 | unsigned i; |
| 671 | |
| 672 | FOR_EACH_FLAT_RANGE(fr, &as->current_map) { |
| 673 | for (i = 0; i < fr->mr->ioeventfd_nb; ++i) { |
| 674 | tmp = addrrange_shift(fr->mr->ioeventfds[i].addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 675 | int128_sub(fr->addr.start, |
| 676 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 677 | if (addrrange_intersects(fr->addr, tmp)) { |
| 678 | ++ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 679 | ioeventfds = g_realloc(ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 680 | ioeventfd_nb * sizeof(*ioeventfds)); |
| 681 | ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i]; |
| 682 | ioeventfds[ioeventfd_nb-1].addr = tmp; |
| 683 | } |
| 684 | } |
| 685 | } |
| 686 | |
| 687 | address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb, |
| 688 | as->ioeventfds, as->ioeventfd_nb); |
| 689 | |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 690 | g_free(as->ioeventfds); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 691 | as->ioeventfds = ioeventfds; |
| 692 | as->ioeventfd_nb = ioeventfd_nb; |
| 693 | } |
| 694 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 695 | typedef void ListenerCallback(MemoryListener *listener, |
| 696 | MemoryRegionSection *mrs); |
| 697 | |
| 698 | /* Want "void (&MemoryListener::*callback)(const MemoryRegionSection& s)" */ |
| 699 | static void memory_listener_update_region(FlatRange *fr, AddressSpace *as, |
| 700 | size_t callback_offset) |
| 701 | { |
| 702 | MemoryRegionSection section = { |
| 703 | .mr = fr->mr, |
| 704 | .address_space = as->root, |
| 705 | .offset_within_region = fr->offset_in_region, |
| 706 | .size = int128_get64(fr->addr.size), |
| 707 | .offset_within_address_space = int128_get64(fr->addr.start), |
| 708 | }; |
| 709 | MemoryListener *listener; |
| 710 | |
| 711 | QLIST_FOREACH(listener, &memory_listeners, link) { |
| 712 | ListenerCallback *callback |
| 713 | = *(ListenerCallback **)((void *)listener + callback_offset); |
| 714 | callback(listener, §ion); |
| 715 | } |
| 716 | } |
| 717 | |
| 718 | #define MEMORY_LISTENER_UPDATE_REGION(fr, as, callback) \ |
| 719 | memory_listener_update_region(fr, as, offsetof(MemoryListener, callback)) |
| 720 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 721 | static void address_space_update_topology_pass(AddressSpace *as, |
| 722 | FlatView old_view, |
| 723 | FlatView new_view, |
| 724 | bool adding) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 725 | { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 726 | unsigned iold, inew; |
| 727 | FlatRange *frold, *frnew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 728 | |
| 729 | /* Generate a symmetric difference of the old and new memory maps. |
| 730 | * Kill ranges in the old map, and instantiate ranges in the new map. |
| 731 | */ |
| 732 | iold = inew = 0; |
| 733 | while (iold < old_view.nr || inew < new_view.nr) { |
| 734 | if (iold < old_view.nr) { |
| 735 | frold = &old_view.ranges[iold]; |
| 736 | } else { |
| 737 | frold = NULL; |
| 738 | } |
| 739 | if (inew < new_view.nr) { |
| 740 | frnew = &new_view.ranges[inew]; |
| 741 | } else { |
| 742 | frnew = NULL; |
| 743 | } |
| 744 | |
| 745 | if (frold |
| 746 | && (!frnew |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 747 | || int128_lt(frold->addr.start, frnew->addr.start) |
| 748 | || (int128_eq(frold->addr.start, frnew->addr.start) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 749 | && !flatrange_equal(frold, frnew)))) { |
| 750 | /* In old, but (not in new, or in new but attributes changed). */ |
| 751 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 752 | if (!adding) { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 753 | MEMORY_LISTENER_UPDATE_REGION(frold, as, region_del); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 754 | as->ops->range_del(as, frold); |
| 755 | } |
| 756 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 757 | ++iold; |
| 758 | } else if (frold && frnew && flatrange_equal(frold, frnew)) { |
| 759 | /* In both (logging may have changed) */ |
| 760 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 761 | if (adding) { |
| 762 | if (frold->dirty_log_mask && !frnew->dirty_log_mask) { |
Avi Kivity | 9f213ed | 2011-12-15 19:55:26 +0200 | [diff] [blame] | 763 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, log_stop); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 764 | as->ops->log_stop(as, frnew); |
| 765 | } else if (frnew->dirty_log_mask && !frold->dirty_log_mask) { |
| 766 | as->ops->log_start(as, frnew); |
Avi Kivity | 9f213ed | 2011-12-15 19:55:26 +0200 | [diff] [blame] | 767 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, log_start); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 768 | } |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 769 | } |
| 770 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 771 | ++iold; |
| 772 | ++inew; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 773 | } else { |
| 774 | /* In new */ |
| 775 | |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 776 | if (adding) { |
| 777 | as->ops->range_add(as, frnew); |
Avi Kivity | 9f213ed | 2011-12-15 19:55:26 +0200 | [diff] [blame] | 778 | MEMORY_LISTENER_UPDATE_REGION(frnew, as, region_add); |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 779 | } |
| 780 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 781 | ++inew; |
| 782 | } |
| 783 | } |
Avi Kivity | b8af1af | 2011-07-26 14:26:12 +0300 | [diff] [blame] | 784 | } |
| 785 | |
| 786 | |
| 787 | static void address_space_update_topology(AddressSpace *as) |
| 788 | { |
| 789 | FlatView old_view = as->current_map; |
| 790 | FlatView new_view = generate_memory_topology(as->root); |
| 791 | |
| 792 | address_space_update_topology_pass(as, old_view, new_view, false); |
| 793 | address_space_update_topology_pass(as, old_view, new_view, true); |
| 794 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 795 | as->current_map = new_view; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 796 | flatview_destroy(&old_view); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 797 | address_space_update_ioeventfds(as); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 798 | } |
| 799 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 800 | static void memory_region_update_topology(MemoryRegion *mr) |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 801 | { |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 802 | if (memory_region_transaction_depth) { |
Avi Kivity | e87c099 | 2011-09-14 12:16:20 +0300 | [diff] [blame] | 803 | memory_region_update_pending |= !mr || mr->enabled; |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 804 | return; |
| 805 | } |
| 806 | |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 807 | if (mr && !mr->enabled) { |
| 808 | return; |
| 809 | } |
| 810 | |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 811 | if (address_space_memory.root) { |
| 812 | address_space_update_topology(&address_space_memory); |
| 813 | } |
| 814 | if (address_space_io.root) { |
| 815 | address_space_update_topology(&address_space_io); |
| 816 | } |
Avi Kivity | e87c099 | 2011-09-14 12:16:20 +0300 | [diff] [blame] | 817 | |
| 818 | memory_region_update_pending = false; |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 819 | } |
| 820 | |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 821 | void memory_region_transaction_begin(void) |
| 822 | { |
| 823 | ++memory_region_transaction_depth; |
| 824 | } |
| 825 | |
| 826 | void memory_region_transaction_commit(void) |
| 827 | { |
| 828 | assert(memory_region_transaction_depth); |
| 829 | --memory_region_transaction_depth; |
Avi Kivity | e87c099 | 2011-09-14 12:16:20 +0300 | [diff] [blame] | 830 | if (!memory_region_transaction_depth && memory_region_update_pending) { |
| 831 | memory_region_update_topology(NULL); |
| 832 | } |
Avi Kivity | 4ef4db8 | 2011-07-26 14:26:13 +0300 | [diff] [blame] | 833 | } |
| 834 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 835 | static void memory_region_destructor_none(MemoryRegion *mr) |
| 836 | { |
| 837 | } |
| 838 | |
| 839 | static void memory_region_destructor_ram(MemoryRegion *mr) |
| 840 | { |
| 841 | qemu_ram_free(mr->ram_addr); |
| 842 | } |
| 843 | |
| 844 | static void memory_region_destructor_ram_from_ptr(MemoryRegion *mr) |
| 845 | { |
| 846 | qemu_ram_free_from_ptr(mr->ram_addr); |
| 847 | } |
| 848 | |
| 849 | static void memory_region_destructor_iomem(MemoryRegion *mr) |
| 850 | { |
| 851 | cpu_unregister_io_memory(mr->ram_addr); |
| 852 | } |
| 853 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 854 | static void memory_region_destructor_rom_device(MemoryRegion *mr) |
| 855 | { |
| 856 | qemu_ram_free(mr->ram_addr & TARGET_PAGE_MASK); |
| 857 | cpu_unregister_io_memory(mr->ram_addr & ~(TARGET_PAGE_MASK | IO_MEM_ROMD)); |
| 858 | } |
| 859 | |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 860 | static bool memory_region_wrong_endianness(MemoryRegion *mr) |
| 861 | { |
| 862 | #ifdef TARGET_BIG_ENDIAN |
| 863 | return mr->ops->endianness == DEVICE_LITTLE_ENDIAN; |
| 864 | #else |
| 865 | return mr->ops->endianness == DEVICE_BIG_ENDIAN; |
| 866 | #endif |
| 867 | } |
| 868 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 869 | void memory_region_init(MemoryRegion *mr, |
| 870 | const char *name, |
| 871 | uint64_t size) |
| 872 | { |
| 873 | mr->ops = NULL; |
| 874 | mr->parent = NULL; |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 875 | mr->size = int128_make64(size); |
| 876 | if (size == UINT64_MAX) { |
| 877 | mr->size = int128_2_64(); |
| 878 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 879 | mr->addr = 0; |
| 880 | mr->offset = 0; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 881 | mr->enabled = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 882 | mr->terminates = false; |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 883 | mr->ram = false; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 884 | mr->readable = true; |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 885 | mr->readonly = false; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 886 | mr->destructor = memory_region_destructor_none; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 887 | mr->priority = 0; |
| 888 | mr->may_overlap = false; |
| 889 | mr->alias = NULL; |
| 890 | QTAILQ_INIT(&mr->subregions); |
| 891 | memset(&mr->subregions_link, 0, sizeof mr->subregions_link); |
| 892 | QTAILQ_INIT(&mr->coalesced); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 893 | mr->name = g_strdup(name); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 894 | mr->dirty_log_mask = 0; |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 895 | mr->ioeventfd_nb = 0; |
| 896 | mr->ioeventfds = NULL; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 897 | } |
| 898 | |
| 899 | static bool memory_region_access_valid(MemoryRegion *mr, |
| 900 | target_phys_addr_t addr, |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 901 | unsigned size, |
| 902 | bool is_write) |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 903 | { |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 904 | if (mr->ops->valid.accepts |
| 905 | && !mr->ops->valid.accepts(mr->opaque, addr, size, is_write)) { |
| 906 | return false; |
| 907 | } |
| 908 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 909 | if (!mr->ops->valid.unaligned && (addr & (size - 1))) { |
| 910 | return false; |
| 911 | } |
| 912 | |
| 913 | /* Treat zero as compatibility all valid */ |
| 914 | if (!mr->ops->valid.max_access_size) { |
| 915 | return true; |
| 916 | } |
| 917 | |
| 918 | if (size > mr->ops->valid.max_access_size |
| 919 | || size < mr->ops->valid.min_access_size) { |
| 920 | return false; |
| 921 | } |
| 922 | return true; |
| 923 | } |
| 924 | |
| 925 | static uint32_t memory_region_read_thunk_n(void *_mr, |
| 926 | target_phys_addr_t addr, |
| 927 | unsigned size) |
| 928 | { |
| 929 | MemoryRegion *mr = _mr; |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 930 | uint64_t data = 0; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 931 | |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 932 | if (!memory_region_access_valid(mr, addr, size, false)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 933 | return -1U; /* FIXME: better signalling */ |
| 934 | } |
| 935 | |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 936 | if (!mr->ops->read) { |
| 937 | return mr->ops->old_mmio.read[bitops_ffsl(size)](mr->opaque, addr); |
| 938 | } |
| 939 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 940 | /* FIXME: support unaligned access */ |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 941 | access_with_adjusted_size(addr + mr->offset, &data, size, |
| 942 | mr->ops->impl.min_access_size, |
| 943 | mr->ops->impl.max_access_size, |
| 944 | memory_region_read_accessor, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 945 | |
| 946 | return data; |
| 947 | } |
| 948 | |
| 949 | static void memory_region_write_thunk_n(void *_mr, |
| 950 | target_phys_addr_t addr, |
| 951 | unsigned size, |
| 952 | uint64_t data) |
| 953 | { |
| 954 | MemoryRegion *mr = _mr; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 955 | |
Avi Kivity | 897fa7c | 2011-11-13 13:05:27 +0200 | [diff] [blame] | 956 | if (!memory_region_access_valid(mr, addr, size, true)) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 957 | return; /* FIXME: better signalling */ |
| 958 | } |
| 959 | |
Avi Kivity | 74901c3 | 2011-07-26 14:26:10 +0300 | [diff] [blame] | 960 | if (!mr->ops->write) { |
| 961 | mr->ops->old_mmio.write[bitops_ffsl(size)](mr->opaque, addr, data); |
| 962 | return; |
| 963 | } |
| 964 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 965 | /* FIXME: support unaligned access */ |
Avi Kivity | 164a4dc | 2011-08-11 10:40:25 +0300 | [diff] [blame] | 966 | access_with_adjusted_size(addr + mr->offset, &data, size, |
| 967 | mr->ops->impl.min_access_size, |
| 968 | mr->ops->impl.max_access_size, |
| 969 | memory_region_write_accessor, mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 970 | } |
| 971 | |
| 972 | static uint32_t memory_region_read_thunk_b(void *mr, target_phys_addr_t addr) |
| 973 | { |
| 974 | return memory_region_read_thunk_n(mr, addr, 1); |
| 975 | } |
| 976 | |
| 977 | static uint32_t memory_region_read_thunk_w(void *mr, target_phys_addr_t addr) |
| 978 | { |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 979 | uint32_t data; |
| 980 | |
| 981 | data = memory_region_read_thunk_n(mr, addr, 2); |
| 982 | if (memory_region_wrong_endianness(mr)) { |
| 983 | data = bswap16(data); |
| 984 | } |
| 985 | return data; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 986 | } |
| 987 | |
| 988 | static uint32_t memory_region_read_thunk_l(void *mr, target_phys_addr_t addr) |
| 989 | { |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 990 | uint32_t data; |
| 991 | |
| 992 | data = memory_region_read_thunk_n(mr, addr, 4); |
| 993 | if (memory_region_wrong_endianness(mr)) { |
| 994 | data = bswap32(data); |
| 995 | } |
| 996 | return data; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 997 | } |
| 998 | |
| 999 | static void memory_region_write_thunk_b(void *mr, target_phys_addr_t addr, |
| 1000 | uint32_t data) |
| 1001 | { |
| 1002 | memory_region_write_thunk_n(mr, addr, 1, data); |
| 1003 | } |
| 1004 | |
| 1005 | static void memory_region_write_thunk_w(void *mr, target_phys_addr_t addr, |
| 1006 | uint32_t data) |
| 1007 | { |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 1008 | if (memory_region_wrong_endianness(mr)) { |
| 1009 | data = bswap16(data); |
| 1010 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1011 | memory_region_write_thunk_n(mr, addr, 2, data); |
| 1012 | } |
| 1013 | |
| 1014 | static void memory_region_write_thunk_l(void *mr, target_phys_addr_t addr, |
| 1015 | uint32_t data) |
| 1016 | { |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 1017 | if (memory_region_wrong_endianness(mr)) { |
| 1018 | data = bswap32(data); |
| 1019 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1020 | memory_region_write_thunk_n(mr, addr, 4, data); |
| 1021 | } |
| 1022 | |
| 1023 | static CPUReadMemoryFunc * const memory_region_read_thunk[] = { |
| 1024 | memory_region_read_thunk_b, |
| 1025 | memory_region_read_thunk_w, |
| 1026 | memory_region_read_thunk_l, |
| 1027 | }; |
| 1028 | |
| 1029 | static CPUWriteMemoryFunc * const memory_region_write_thunk[] = { |
| 1030 | memory_region_write_thunk_b, |
| 1031 | memory_region_write_thunk_w, |
| 1032 | memory_region_write_thunk_l, |
| 1033 | }; |
| 1034 | |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 1035 | static void memory_region_prepare_ram_addr(MemoryRegion *mr) |
| 1036 | { |
| 1037 | if (mr->backend_registered) { |
| 1038 | return; |
| 1039 | } |
| 1040 | |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1041 | mr->destructor = memory_region_destructor_iomem; |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 1042 | mr->ram_addr = cpu_register_io_memory(memory_region_read_thunk, |
| 1043 | memory_region_write_thunk, |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 1044 | mr); |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 1045 | mr->backend_registered = true; |
| 1046 | } |
| 1047 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1048 | void memory_region_init_io(MemoryRegion *mr, |
| 1049 | const MemoryRegionOps *ops, |
| 1050 | void *opaque, |
| 1051 | const char *name, |
| 1052 | uint64_t size) |
| 1053 | { |
| 1054 | memory_region_init(mr, name, size); |
| 1055 | mr->ops = ops; |
| 1056 | mr->opaque = opaque; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1057 | mr->terminates = true; |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 1058 | mr->backend_registered = false; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1059 | } |
| 1060 | |
| 1061 | void memory_region_init_ram(MemoryRegion *mr, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1062 | const char *name, |
| 1063 | uint64_t size) |
| 1064 | { |
| 1065 | memory_region_init(mr, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1066 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1067 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1068 | mr->destructor = memory_region_destructor_ram; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1069 | mr->ram_addr = qemu_ram_alloc(size, mr); |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 1070 | mr->backend_registered = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1071 | } |
| 1072 | |
| 1073 | void memory_region_init_ram_ptr(MemoryRegion *mr, |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1074 | const char *name, |
| 1075 | uint64_t size, |
| 1076 | void *ptr) |
| 1077 | { |
| 1078 | memory_region_init(mr, name, size); |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1079 | mr->ram = true; |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1080 | mr->terminates = true; |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1081 | mr->destructor = memory_region_destructor_ram_from_ptr; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1082 | mr->ram_addr = qemu_ram_alloc_from_ptr(size, ptr, mr); |
Avi Kivity | 16ef61c | 2011-07-26 14:26:07 +0300 | [diff] [blame] | 1083 | mr->backend_registered = true; |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1084 | } |
| 1085 | |
| 1086 | void memory_region_init_alias(MemoryRegion *mr, |
| 1087 | const char *name, |
| 1088 | MemoryRegion *orig, |
| 1089 | target_phys_addr_t offset, |
| 1090 | uint64_t size) |
| 1091 | { |
| 1092 | memory_region_init(mr, name, size); |
| 1093 | mr->alias = orig; |
| 1094 | mr->alias_offset = offset; |
| 1095 | } |
| 1096 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1097 | void memory_region_init_rom_device(MemoryRegion *mr, |
| 1098 | const MemoryRegionOps *ops, |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1099 | void *opaque, |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1100 | const char *name, |
| 1101 | uint64_t size) |
| 1102 | { |
| 1103 | memory_region_init(mr, name, size); |
Avi Kivity | 7bc2b9c | 2011-08-25 14:56:14 +0300 | [diff] [blame] | 1104 | mr->ops = ops; |
Avi Kivity | 75f5941 | 2011-08-26 00:35:15 +0300 | [diff] [blame] | 1105 | mr->opaque = opaque; |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1106 | mr->terminates = true; |
| 1107 | mr->destructor = memory_region_destructor_rom_device; |
Avi Kivity | c5705a7 | 2011-12-20 15:59:12 +0200 | [diff] [blame] | 1108 | mr->ram_addr = qemu_ram_alloc(size, mr); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1109 | mr->ram_addr |= cpu_register_io_memory(memory_region_read_thunk, |
| 1110 | memory_region_write_thunk, |
Avi Kivity | be675c9 | 2011-11-20 16:22:55 +0200 | [diff] [blame] | 1111 | mr); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1112 | mr->ram_addr |= IO_MEM_ROMD; |
| 1113 | mr->backend_registered = true; |
| 1114 | } |
| 1115 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1116 | void memory_region_destroy(MemoryRegion *mr) |
| 1117 | { |
| 1118 | assert(QTAILQ_EMPTY(&mr->subregions)); |
Avi Kivity | 545e92e | 2011-08-08 19:58:48 +0300 | [diff] [blame] | 1119 | mr->destructor(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1120 | memory_region_clear_coalescing(mr); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1121 | g_free((char *)mr->name); |
| 1122 | g_free(mr->ioeventfds); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1123 | } |
| 1124 | |
| 1125 | uint64_t memory_region_size(MemoryRegion *mr) |
| 1126 | { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1127 | if (int128_eq(mr->size, int128_2_64())) { |
| 1128 | return UINT64_MAX; |
| 1129 | } |
| 1130 | return int128_get64(mr->size); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1131 | } |
| 1132 | |
Avi Kivity | 8991c79 | 2011-12-20 15:53:11 +0200 | [diff] [blame] | 1133 | const char *memory_region_name(MemoryRegion *mr) |
| 1134 | { |
| 1135 | return mr->name; |
| 1136 | } |
| 1137 | |
Avi Kivity | 8ea9252 | 2011-12-08 15:58:43 +0200 | [diff] [blame] | 1138 | bool memory_region_is_ram(MemoryRegion *mr) |
| 1139 | { |
| 1140 | return mr->ram; |
| 1141 | } |
| 1142 | |
Avi Kivity | 55043ba | 2011-12-15 17:20:34 +0200 | [diff] [blame] | 1143 | bool memory_region_is_logging(MemoryRegion *mr) |
| 1144 | { |
| 1145 | return mr->dirty_log_mask; |
| 1146 | } |
| 1147 | |
Avi Kivity | ce7923d | 2011-12-08 16:05:11 +0200 | [diff] [blame] | 1148 | bool memory_region_is_rom(MemoryRegion *mr) |
| 1149 | { |
| 1150 | return mr->ram && mr->readonly; |
| 1151 | } |
| 1152 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1153 | void memory_region_set_offset(MemoryRegion *mr, target_phys_addr_t offset) |
| 1154 | { |
| 1155 | mr->offset = offset; |
| 1156 | } |
| 1157 | |
| 1158 | void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client) |
| 1159 | { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1160 | uint8_t mask = 1 << client; |
| 1161 | |
| 1162 | mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1163 | memory_region_update_topology(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1164 | } |
| 1165 | |
| 1166 | bool memory_region_get_dirty(MemoryRegion *mr, target_phys_addr_t addr, |
| 1167 | unsigned client) |
| 1168 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1169 | assert(mr->terminates); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1170 | return cpu_physical_memory_get_dirty(mr->ram_addr + addr, 1 << client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1171 | } |
| 1172 | |
| 1173 | void memory_region_set_dirty(MemoryRegion *mr, target_phys_addr_t addr) |
| 1174 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1175 | assert(mr->terminates); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1176 | return cpu_physical_memory_set_dirty(mr->ram_addr + addr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1177 | } |
| 1178 | |
| 1179 | void memory_region_sync_dirty_bitmap(MemoryRegion *mr) |
| 1180 | { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1181 | FlatRange *fr; |
| 1182 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 1183 | FOR_EACH_FLAT_RANGE(fr, &address_space_memory.current_map) { |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1184 | if (fr->mr == mr) { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1185 | MEMORY_LISTENER_UPDATE_REGION(fr, &address_space_memory, log_sync); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1186 | } |
| 1187 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1188 | } |
| 1189 | |
| 1190 | void memory_region_set_readonly(MemoryRegion *mr, bool readonly) |
| 1191 | { |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1192 | if (mr->readonly != readonly) { |
| 1193 | mr->readonly = readonly; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1194 | memory_region_update_topology(mr); |
Avi Kivity | fb1cd6f | 2011-09-25 14:48:47 +0300 | [diff] [blame] | 1195 | } |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1196 | } |
| 1197 | |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1198 | void memory_region_rom_device_set_readable(MemoryRegion *mr, bool readable) |
| 1199 | { |
| 1200 | if (mr->readable != readable) { |
| 1201 | mr->readable = readable; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1202 | memory_region_update_topology(mr); |
Avi Kivity | d0a9b5b | 2011-08-08 19:58:49 +0300 | [diff] [blame] | 1203 | } |
| 1204 | } |
| 1205 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1206 | void memory_region_reset_dirty(MemoryRegion *mr, target_phys_addr_t addr, |
| 1207 | target_phys_addr_t size, unsigned client) |
| 1208 | { |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1209 | assert(mr->terminates); |
Avi Kivity | 5a58334 | 2011-07-26 14:26:02 +0300 | [diff] [blame] | 1210 | cpu_physical_memory_reset_dirty(mr->ram_addr + addr, |
| 1211 | mr->ram_addr + addr + size, |
| 1212 | 1 << client); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1213 | } |
| 1214 | |
| 1215 | void *memory_region_get_ram_ptr(MemoryRegion *mr) |
| 1216 | { |
| 1217 | if (mr->alias) { |
| 1218 | return memory_region_get_ram_ptr(mr->alias) + mr->alias_offset; |
| 1219 | } |
| 1220 | |
Avi Kivity | 14a3c10 | 2011-07-26 14:26:06 +0300 | [diff] [blame] | 1221 | assert(mr->terminates); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1222 | |
Jan Kiszka | 021d26d | 2011-08-30 00:38:24 +0200 | [diff] [blame] | 1223 | return qemu_get_ram_ptr(mr->ram_addr & TARGET_PAGE_MASK); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1224 | } |
| 1225 | |
| 1226 | static void memory_region_update_coalesced_range(MemoryRegion *mr) |
| 1227 | { |
| 1228 | FlatRange *fr; |
| 1229 | CoalescedMemoryRange *cmr; |
| 1230 | AddrRange tmp; |
| 1231 | |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 1232 | FOR_EACH_FLAT_RANGE(fr, &address_space_memory.current_map) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1233 | if (fr->mr == mr) { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1234 | qemu_unregister_coalesced_mmio(int128_get64(fr->addr.start), |
| 1235 | int128_get64(fr->addr.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1236 | QTAILQ_FOREACH(cmr, &mr->coalesced, link) { |
| 1237 | tmp = addrrange_shift(cmr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1238 | int128_sub(fr->addr.start, |
| 1239 | int128_make64(fr->offset_in_region))); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1240 | if (!addrrange_intersects(tmp, fr->addr)) { |
| 1241 | continue; |
| 1242 | } |
| 1243 | tmp = addrrange_intersection(tmp, fr->addr); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1244 | qemu_register_coalesced_mmio(int128_get64(tmp.start), |
| 1245 | int128_get64(tmp.size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1246 | } |
| 1247 | } |
| 1248 | } |
| 1249 | } |
| 1250 | |
| 1251 | void memory_region_set_coalescing(MemoryRegion *mr) |
| 1252 | { |
| 1253 | memory_region_clear_coalescing(mr); |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1254 | memory_region_add_coalescing(mr, 0, int128_get64(mr->size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1255 | } |
| 1256 | |
| 1257 | void memory_region_add_coalescing(MemoryRegion *mr, |
| 1258 | target_phys_addr_t offset, |
| 1259 | uint64_t size) |
| 1260 | { |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1261 | CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1262 | |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1263 | cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size)); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1264 | QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link); |
| 1265 | memory_region_update_coalesced_range(mr); |
| 1266 | } |
| 1267 | |
| 1268 | void memory_region_clear_coalescing(MemoryRegion *mr) |
| 1269 | { |
| 1270 | CoalescedMemoryRange *cmr; |
| 1271 | |
| 1272 | while (!QTAILQ_EMPTY(&mr->coalesced)) { |
| 1273 | cmr = QTAILQ_FIRST(&mr->coalesced); |
| 1274 | QTAILQ_REMOVE(&mr->coalesced, cmr, link); |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1275 | g_free(cmr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1276 | } |
| 1277 | memory_region_update_coalesced_range(mr); |
| 1278 | } |
| 1279 | |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1280 | void memory_region_add_eventfd(MemoryRegion *mr, |
| 1281 | target_phys_addr_t addr, |
| 1282 | unsigned size, |
| 1283 | bool match_data, |
| 1284 | uint64_t data, |
| 1285 | int fd) |
| 1286 | { |
| 1287 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1288 | .addr.start = int128_make64(addr), |
| 1289 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1290 | .match_data = match_data, |
| 1291 | .data = data, |
| 1292 | .fd = fd, |
| 1293 | }; |
| 1294 | unsigned i; |
| 1295 | |
| 1296 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1297 | if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) { |
| 1298 | break; |
| 1299 | } |
| 1300 | } |
| 1301 | ++mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1302 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1303 | sizeof(*mr->ioeventfds) * mr->ioeventfd_nb); |
| 1304 | memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i], |
| 1305 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i)); |
| 1306 | mr->ioeventfds[i] = mrfd; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1307 | memory_region_update_topology(mr); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1308 | } |
| 1309 | |
| 1310 | void memory_region_del_eventfd(MemoryRegion *mr, |
| 1311 | target_phys_addr_t addr, |
| 1312 | unsigned size, |
| 1313 | bool match_data, |
| 1314 | uint64_t data, |
| 1315 | int fd) |
| 1316 | { |
| 1317 | MemoryRegionIoeventfd mrfd = { |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1318 | .addr.start = int128_make64(addr), |
| 1319 | .addr.size = int128_make64(size), |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1320 | .match_data = match_data, |
| 1321 | .data = data, |
| 1322 | .fd = fd, |
| 1323 | }; |
| 1324 | unsigned i; |
| 1325 | |
| 1326 | for (i = 0; i < mr->ioeventfd_nb; ++i) { |
| 1327 | if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) { |
| 1328 | break; |
| 1329 | } |
| 1330 | } |
| 1331 | assert(i != mr->ioeventfd_nb); |
| 1332 | memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1], |
| 1333 | sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1))); |
| 1334 | --mr->ioeventfd_nb; |
Anthony Liguori | 7267c09 | 2011-08-20 22:09:37 -0500 | [diff] [blame] | 1335 | mr->ioeventfds = g_realloc(mr->ioeventfds, |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1336 | sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1337 | memory_region_update_topology(mr); |
Avi Kivity | 3e9d69e | 2011-07-26 14:26:11 +0300 | [diff] [blame] | 1338 | } |
| 1339 | |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1340 | static void memory_region_add_subregion_common(MemoryRegion *mr, |
| 1341 | target_phys_addr_t offset, |
| 1342 | MemoryRegion *subregion) |
| 1343 | { |
| 1344 | MemoryRegion *other; |
| 1345 | |
| 1346 | assert(!subregion->parent); |
| 1347 | subregion->parent = mr; |
| 1348 | subregion->addr = offset; |
| 1349 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1350 | if (subregion->may_overlap || other->may_overlap) { |
| 1351 | continue; |
| 1352 | } |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1353 | if (int128_gt(int128_make64(offset), |
| 1354 | int128_add(int128_make64(other->addr), other->size)) |
| 1355 | || int128_le(int128_add(int128_make64(offset), subregion->size), |
| 1356 | int128_make64(other->addr))) { |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1357 | continue; |
| 1358 | } |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1359 | #if 0 |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1360 | printf("warning: subregion collision %llx/%llx (%s) " |
| 1361 | "vs %llx/%llx (%s)\n", |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1362 | (unsigned long long)offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1363 | (unsigned long long)int128_get64(subregion->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1364 | subregion->name, |
| 1365 | (unsigned long long)other->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1366 | (unsigned long long)int128_get64(other->size), |
Michael Walle | 860329b | 2011-09-15 23:16:49 +0200 | [diff] [blame] | 1367 | other->name); |
Anthony Liguori | a5e1cbc | 2011-08-22 11:14:56 -0500 | [diff] [blame] | 1368 | #endif |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1369 | } |
| 1370 | QTAILQ_FOREACH(other, &mr->subregions, subregions_link) { |
| 1371 | if (subregion->priority >= other->priority) { |
| 1372 | QTAILQ_INSERT_BEFORE(other, subregion, subregions_link); |
| 1373 | goto done; |
| 1374 | } |
| 1375 | } |
| 1376 | QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link); |
| 1377 | done: |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1378 | memory_region_update_topology(mr); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1379 | } |
| 1380 | |
| 1381 | |
| 1382 | void memory_region_add_subregion(MemoryRegion *mr, |
| 1383 | target_phys_addr_t offset, |
| 1384 | MemoryRegion *subregion) |
| 1385 | { |
| 1386 | subregion->may_overlap = false; |
| 1387 | subregion->priority = 0; |
| 1388 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1389 | } |
| 1390 | |
| 1391 | void memory_region_add_subregion_overlap(MemoryRegion *mr, |
| 1392 | target_phys_addr_t offset, |
| 1393 | MemoryRegion *subregion, |
| 1394 | unsigned priority) |
| 1395 | { |
| 1396 | subregion->may_overlap = true; |
| 1397 | subregion->priority = priority; |
| 1398 | memory_region_add_subregion_common(mr, offset, subregion); |
| 1399 | } |
| 1400 | |
| 1401 | void memory_region_del_subregion(MemoryRegion *mr, |
| 1402 | MemoryRegion *subregion) |
| 1403 | { |
| 1404 | assert(subregion->parent == mr); |
| 1405 | subregion->parent = NULL; |
| 1406 | QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link); |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1407 | memory_region_update_topology(mr); |
| 1408 | } |
| 1409 | |
| 1410 | void memory_region_set_enabled(MemoryRegion *mr, bool enabled) |
| 1411 | { |
| 1412 | if (enabled == mr->enabled) { |
| 1413 | return; |
| 1414 | } |
| 1415 | mr->enabled = enabled; |
| 1416 | memory_region_update_topology(NULL); |
Avi Kivity | 093bc2c | 2011-07-26 14:26:01 +0300 | [diff] [blame] | 1417 | } |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1418 | |
Avi Kivity | 2282e1a | 2011-09-14 12:10:12 +0300 | [diff] [blame] | 1419 | void memory_region_set_address(MemoryRegion *mr, target_phys_addr_t addr) |
| 1420 | { |
| 1421 | MemoryRegion *parent = mr->parent; |
| 1422 | unsigned priority = mr->priority; |
| 1423 | bool may_overlap = mr->may_overlap; |
| 1424 | |
| 1425 | if (addr == mr->addr || !parent) { |
| 1426 | mr->addr = addr; |
| 1427 | return; |
| 1428 | } |
| 1429 | |
| 1430 | memory_region_transaction_begin(); |
| 1431 | memory_region_del_subregion(parent, mr); |
| 1432 | if (may_overlap) { |
| 1433 | memory_region_add_subregion_overlap(parent, addr, mr, priority); |
| 1434 | } else { |
| 1435 | memory_region_add_subregion(parent, addr, mr); |
| 1436 | } |
| 1437 | memory_region_transaction_commit(); |
| 1438 | } |
| 1439 | |
Avi Kivity | 4703359 | 2011-12-04 19:16:50 +0200 | [diff] [blame] | 1440 | void memory_region_set_alias_offset(MemoryRegion *mr, target_phys_addr_t offset) |
| 1441 | { |
| 1442 | target_phys_addr_t old_offset = mr->alias_offset; |
| 1443 | |
| 1444 | assert(mr->alias); |
| 1445 | mr->alias_offset = offset; |
| 1446 | |
| 1447 | if (offset == old_offset || !mr->parent) { |
| 1448 | return; |
| 1449 | } |
| 1450 | |
| 1451 | memory_region_update_topology(mr); |
| 1452 | } |
| 1453 | |
Avi Kivity | e34911c | 2011-12-19 12:06:23 +0200 | [diff] [blame] | 1454 | ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr) |
| 1455 | { |
| 1456 | assert(mr->backend_registered); |
| 1457 | return mr->ram_addr; |
| 1458 | } |
| 1459 | |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1460 | static int cmp_flatrange_addr(const void *addr_, const void *fr_) |
| 1461 | { |
| 1462 | const AddrRange *addr = addr_; |
| 1463 | const FlatRange *fr = fr_; |
| 1464 | |
| 1465 | if (int128_le(addrrange_end(*addr), fr->addr.start)) { |
| 1466 | return -1; |
| 1467 | } else if (int128_ge(addr->start, addrrange_end(fr->addr))) { |
| 1468 | return 1; |
| 1469 | } |
| 1470 | return 0; |
| 1471 | } |
| 1472 | |
| 1473 | static FlatRange *address_space_lookup(AddressSpace *as, AddrRange addr) |
| 1474 | { |
| 1475 | return bsearch(&addr, as->current_map.ranges, as->current_map.nr, |
| 1476 | sizeof(FlatRange), cmp_flatrange_addr); |
| 1477 | } |
| 1478 | |
| 1479 | MemoryRegionSection memory_region_find(MemoryRegion *address_space, |
| 1480 | target_phys_addr_t addr, uint64_t size) |
| 1481 | { |
| 1482 | AddressSpace *as = memory_region_to_address_space(address_space); |
| 1483 | AddrRange range = addrrange_make(int128_make64(addr), |
| 1484 | int128_make64(size)); |
| 1485 | FlatRange *fr = address_space_lookup(as, range); |
| 1486 | MemoryRegionSection ret = { .mr = NULL, .size = 0 }; |
| 1487 | |
| 1488 | if (!fr) { |
| 1489 | return ret; |
| 1490 | } |
| 1491 | |
| 1492 | while (fr > as->current_map.ranges |
| 1493 | && addrrange_intersects(fr[-1].addr, range)) { |
| 1494 | --fr; |
| 1495 | } |
| 1496 | |
| 1497 | ret.mr = fr->mr; |
| 1498 | range = addrrange_intersection(range, fr->addr); |
| 1499 | ret.offset_within_region = fr->offset_in_region; |
| 1500 | ret.offset_within_region += int128_get64(int128_sub(range.start, |
| 1501 | fr->addr.start)); |
| 1502 | ret.size = int128_get64(range.size); |
| 1503 | ret.offset_within_address_space = int128_get64(range.start); |
| 1504 | return ret; |
| 1505 | } |
| 1506 | |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 1507 | void memory_global_sync_dirty_bitmap(MemoryRegion *address_space) |
| 1508 | { |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1509 | AddressSpace *as = memory_region_to_address_space(address_space); |
| 1510 | FlatRange *fr; |
| 1511 | |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1512 | FOR_EACH_FLAT_RANGE(fr, &as->current_map) { |
| 1513 | MEMORY_LISTENER_UPDATE_REGION(fr, as, log_sync); |
| 1514 | } |
| 1515 | } |
| 1516 | |
| 1517 | void memory_global_dirty_log_start(void) |
| 1518 | { |
| 1519 | MemoryListener *listener; |
| 1520 | |
Avi Kivity | 8f77558 | 2011-12-21 14:14:07 +0200 | [diff] [blame] | 1521 | cpu_physical_memory_set_dirty_tracking(1); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1522 | global_dirty_log = true; |
| 1523 | QLIST_FOREACH(listener, &memory_listeners, link) { |
| 1524 | listener->log_global_start(listener); |
| 1525 | } |
| 1526 | } |
| 1527 | |
| 1528 | void memory_global_dirty_log_stop(void) |
| 1529 | { |
| 1530 | MemoryListener *listener; |
| 1531 | |
| 1532 | global_dirty_log = false; |
| 1533 | QLIST_FOREACH(listener, &memory_listeners, link) { |
| 1534 | listener->log_global_stop(listener); |
| 1535 | } |
Avi Kivity | 8f77558 | 2011-12-21 14:14:07 +0200 | [diff] [blame] | 1536 | cpu_physical_memory_set_dirty_tracking(0); |
Avi Kivity | 7664e80 | 2011-12-11 14:47:25 +0200 | [diff] [blame] | 1537 | } |
| 1538 | |
| 1539 | static void listener_add_address_space(MemoryListener *listener, |
| 1540 | AddressSpace *as) |
| 1541 | { |
| 1542 | FlatRange *fr; |
| 1543 | |
| 1544 | if (global_dirty_log) { |
| 1545 | listener->log_global_start(listener); |
| 1546 | } |
| 1547 | FOR_EACH_FLAT_RANGE(fr, &as->current_map) { |
| 1548 | MemoryRegionSection section = { |
| 1549 | .mr = fr->mr, |
| 1550 | .address_space = as->root, |
| 1551 | .offset_within_region = fr->offset_in_region, |
| 1552 | .size = int128_get64(fr->addr.size), |
| 1553 | .offset_within_address_space = int128_get64(fr->addr.start), |
| 1554 | }; |
| 1555 | listener->region_add(listener, §ion); |
| 1556 | } |
| 1557 | } |
| 1558 | |
| 1559 | void memory_listener_register(MemoryListener *listener) |
| 1560 | { |
| 1561 | QLIST_INSERT_HEAD(&memory_listeners, listener, link); |
| 1562 | listener_add_address_space(listener, &address_space_memory); |
| 1563 | listener_add_address_space(listener, &address_space_io); |
| 1564 | } |
| 1565 | |
| 1566 | void memory_listener_unregister(MemoryListener *listener) |
| 1567 | { |
| 1568 | QLIST_REMOVE(listener, link); |
Avi Kivity | 86e775c | 2011-12-15 16:24:49 +0200 | [diff] [blame] | 1569 | } |
Avi Kivity | e217795 | 2011-12-08 15:00:18 +0200 | [diff] [blame] | 1570 | |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1571 | void set_system_memory_map(MemoryRegion *mr) |
| 1572 | { |
Avi Kivity | cc31e6e | 2011-07-26 14:26:05 +0300 | [diff] [blame] | 1573 | address_space_memory.root = mr; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1574 | memory_region_update_topology(NULL); |
Avi Kivity | 1c0ffa5 | 2011-07-26 14:26:04 +0300 | [diff] [blame] | 1575 | } |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 1576 | |
| 1577 | void set_system_io_map(MemoryRegion *mr) |
| 1578 | { |
| 1579 | address_space_io.root = mr; |
Avi Kivity | 6bba19b | 2011-09-14 11:54:58 +0300 | [diff] [blame] | 1580 | memory_region_update_topology(NULL); |
Avi Kivity | 658b222 | 2011-07-26 14:26:08 +0300 | [diff] [blame] | 1581 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1582 | |
Avi Kivity | acbbec5 | 2011-11-21 12:27:03 +0200 | [diff] [blame^] | 1583 | uint64_t io_mem_read(int io_index, target_phys_addr_t addr, unsigned size) |
| 1584 | { |
| 1585 | return _io_mem_read[io_index][bitops_ffsl(size)](io_mem_opaque[io_index], |
| 1586 | addr); |
| 1587 | } |
| 1588 | |
| 1589 | void io_mem_write(int io_index, target_phys_addr_t addr, |
| 1590 | uint64_t val, unsigned size) |
| 1591 | { |
| 1592 | _io_mem_write[io_index][bitops_ffsl(size)](io_mem_opaque[io_index], |
| 1593 | addr, val); |
| 1594 | } |
| 1595 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1596 | typedef struct MemoryRegionList MemoryRegionList; |
| 1597 | |
| 1598 | struct MemoryRegionList { |
| 1599 | const MemoryRegion *mr; |
| 1600 | bool printed; |
| 1601 | QTAILQ_ENTRY(MemoryRegionList) queue; |
| 1602 | }; |
| 1603 | |
| 1604 | typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead; |
| 1605 | |
| 1606 | static void mtree_print_mr(fprintf_function mon_printf, void *f, |
| 1607 | const MemoryRegion *mr, unsigned int level, |
| 1608 | target_phys_addr_t base, |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1609 | MemoryRegionListHead *alias_print_queue) |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1610 | { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1611 | MemoryRegionList *new_ml, *ml, *next_ml; |
| 1612 | MemoryRegionListHead submr_print_queue; |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1613 | const MemoryRegion *submr; |
| 1614 | unsigned int i; |
| 1615 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1616 | if (!mr) { |
| 1617 | return; |
| 1618 | } |
| 1619 | |
| 1620 | for (i = 0; i < level; i++) { |
| 1621 | mon_printf(f, " "); |
| 1622 | } |
| 1623 | |
| 1624 | if (mr->alias) { |
| 1625 | MemoryRegionList *ml; |
| 1626 | bool found = false; |
| 1627 | |
| 1628 | /* check if the alias is already in the queue */ |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1629 | QTAILQ_FOREACH(ml, alias_print_queue, queue) { |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1630 | if (ml->mr == mr->alias && !ml->printed) { |
| 1631 | found = true; |
| 1632 | } |
| 1633 | } |
| 1634 | |
| 1635 | if (!found) { |
| 1636 | ml = g_new(MemoryRegionList, 1); |
| 1637 | ml->mr = mr->alias; |
| 1638 | ml->printed = false; |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1639 | QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1640 | } |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1641 | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d): alias %s @%s " |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1642 | TARGET_FMT_plx "-" TARGET_FMT_plx "\n", |
| 1643 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1644 | base + mr->addr |
| 1645 | + (target_phys_addr_t)int128_get64(mr->size) - 1, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1646 | mr->priority, |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1647 | mr->name, |
| 1648 | mr->alias->name, |
| 1649 | mr->alias_offset, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1650 | mr->alias_offset |
| 1651 | + (target_phys_addr_t)int128_get64(mr->size) - 1); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1652 | } else { |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1653 | mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d): %s\n", |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1654 | base + mr->addr, |
Avi Kivity | 08dafab | 2011-10-16 13:19:17 +0200 | [diff] [blame] | 1655 | base + mr->addr |
| 1656 | + (target_phys_addr_t)int128_get64(mr->size) - 1, |
Jan Kiszka | 4b474ba | 2011-09-27 15:00:31 +0200 | [diff] [blame] | 1657 | mr->priority, |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1658 | mr->name); |
| 1659 | } |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1660 | |
| 1661 | QTAILQ_INIT(&submr_print_queue); |
| 1662 | |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1663 | QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1664 | new_ml = g_new(MemoryRegionList, 1); |
| 1665 | new_ml->mr = submr; |
| 1666 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 1667 | if (new_ml->mr->addr < ml->mr->addr || |
| 1668 | (new_ml->mr->addr == ml->mr->addr && |
| 1669 | new_ml->mr->priority > ml->mr->priority)) { |
| 1670 | QTAILQ_INSERT_BEFORE(ml, new_ml, queue); |
| 1671 | new_ml = NULL; |
| 1672 | break; |
| 1673 | } |
| 1674 | } |
| 1675 | if (new_ml) { |
| 1676 | QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, queue); |
| 1677 | } |
| 1678 | } |
| 1679 | |
| 1680 | QTAILQ_FOREACH(ml, &submr_print_queue, queue) { |
| 1681 | mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr, |
| 1682 | alias_print_queue); |
| 1683 | } |
| 1684 | |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 1685 | QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, queue, next_ml) { |
Jan Kiszka | 9479c57 | 2011-09-27 15:00:41 +0200 | [diff] [blame] | 1686 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1687 | } |
| 1688 | } |
| 1689 | |
| 1690 | void mtree_info(fprintf_function mon_printf, void *f) |
| 1691 | { |
| 1692 | MemoryRegionListHead ml_head; |
| 1693 | MemoryRegionList *ml, *ml2; |
| 1694 | |
| 1695 | QTAILQ_INIT(&ml_head); |
| 1696 | |
| 1697 | mon_printf(f, "memory\n"); |
| 1698 | mtree_print_mr(mon_printf, f, address_space_memory.root, 0, 0, &ml_head); |
| 1699 | |
| 1700 | /* print aliased regions */ |
| 1701 | QTAILQ_FOREACH(ml, &ml_head, queue) { |
| 1702 | if (!ml->printed) { |
| 1703 | mon_printf(f, "%s\n", ml->mr->name); |
| 1704 | mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head); |
| 1705 | } |
| 1706 | } |
| 1707 | |
| 1708 | QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) { |
Avi Kivity | 88365e4 | 2011-11-13 12:00:55 +0200 | [diff] [blame] | 1709 | g_free(ml); |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1710 | } |
| 1711 | |
Jan Kiszka | 0663181 | 2011-09-27 15:00:38 +0200 | [diff] [blame] | 1712 | if (address_space_io.root && |
| 1713 | !QTAILQ_EMPTY(&address_space_io.root->subregions)) { |
| 1714 | QTAILQ_INIT(&ml_head); |
| 1715 | mon_printf(f, "I/O\n"); |
| 1716 | mtree_print_mr(mon_printf, f, address_space_io.root, 0, 0, &ml_head); |
| 1717 | } |
Blue Swirl | 314e298 | 2011-09-11 20:22:05 +0000 | [diff] [blame] | 1718 | } |