2 * Physical memory management
4 * Copyright 2011 Red Hat, Inc. and/or its affiliates
7 * Avi Kivity <avi@redhat.com>
9 * This work is licensed under the terms of the GNU GPL, version 2. See
10 * the COPYING file in the top-level directory.
12 * Contributions after 2012-01-13 are licensed under the terms of the
13 * GNU GPL, version 2 or (at your option) any later version.
16 #include "exec/memory.h"
17 #include "exec/address-spaces.h"
18 #include "exec/ioport.h"
19 #include "qemu/bitops.h"
20 #include "sysemu/kvm.h"
23 #include "exec/memory-internal.h"
25 //#define DEBUG_UNASSIGNED
27 static unsigned memory_region_transaction_depth
;
28 static bool memory_region_update_pending
;
29 static bool global_dirty_log
= false;
31 static QTAILQ_HEAD(memory_listeners
, MemoryListener
) memory_listeners
32 = QTAILQ_HEAD_INITIALIZER(memory_listeners
);
34 static QTAILQ_HEAD(, AddressSpace
) address_spaces
35 = QTAILQ_HEAD_INITIALIZER(address_spaces
);
37 typedef struct AddrRange AddrRange
;
40 * Note using signed integers limits us to physical addresses at most
41 * 63 bits wide. They are needed for negative offsetting in aliases
42 * (large MemoryRegion::alias_offset).
49 static AddrRange
addrrange_make(Int128 start
, Int128 size
)
51 return (AddrRange
) { start
, size
};
54 static bool addrrange_equal(AddrRange r1
, AddrRange r2
)
56 return int128_eq(r1
.start
, r2
.start
) && int128_eq(r1
.size
, r2
.size
);
59 static Int128
addrrange_end(AddrRange r
)
61 return int128_add(r
.start
, r
.size
);
64 static AddrRange
addrrange_shift(AddrRange range
, Int128 delta
)
66 int128_addto(&range
.start
, delta
);
70 static bool addrrange_contains(AddrRange range
, Int128 addr
)
72 return int128_ge(addr
, range
.start
)
73 && int128_lt(addr
, addrrange_end(range
));
76 static bool addrrange_intersects(AddrRange r1
, AddrRange r2
)
78 return addrrange_contains(r1
, r2
.start
)
79 || addrrange_contains(r2
, r1
.start
);
82 static AddrRange
addrrange_intersection(AddrRange r1
, AddrRange r2
)
84 Int128 start
= int128_max(r1
.start
, r2
.start
);
85 Int128 end
= int128_min(addrrange_end(r1
), addrrange_end(r2
));
86 return addrrange_make(start
, int128_sub(end
, start
));
89 enum ListenerDirection
{ Forward
, Reverse
};
91 static bool memory_listener_match(MemoryListener
*listener
,
92 MemoryRegionSection
*section
)
94 return !listener
->address_space_filter
95 || listener
->address_space_filter
== section
->address_space
;
98 #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \
100 MemoryListener *_listener; \
102 switch (_direction) { \
104 QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
105 if (_listener->_callback) { \
106 _listener->_callback(_listener, ##_args); \
111 QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
112 memory_listeners, link) { \
113 if (_listener->_callback) { \
114 _listener->_callback(_listener, ##_args); \
123 #define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \
125 MemoryListener *_listener; \
127 switch (_direction) { \
129 QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
130 if (_listener->_callback \
131 && memory_listener_match(_listener, _section)) { \
132 _listener->_callback(_listener, _section, ##_args); \
137 QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
138 memory_listeners, link) { \
139 if (_listener->_callback \
140 && memory_listener_match(_listener, _section)) { \
141 _listener->_callback(_listener, _section, ##_args); \
150 #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \
151 MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \
153 .address_space = (as), \
154 .offset_within_region = (fr)->offset_in_region, \
155 .size = int128_get64((fr)->addr.size), \
156 .offset_within_address_space = int128_get64((fr)->addr.start), \
157 .readonly = (fr)->readonly, \
160 struct CoalescedMemoryRange
{
162 QTAILQ_ENTRY(CoalescedMemoryRange
) link
;
165 struct MemoryRegionIoeventfd
{
172 static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a
,
173 MemoryRegionIoeventfd b
)
175 if (int128_lt(a
.addr
.start
, b
.addr
.start
)) {
177 } else if (int128_gt(a
.addr
.start
, b
.addr
.start
)) {
179 } else if (int128_lt(a
.addr
.size
, b
.addr
.size
)) {
181 } else if (int128_gt(a
.addr
.size
, b
.addr
.size
)) {
183 } else if (a
.match_data
< b
.match_data
) {
185 } else if (a
.match_data
> b
.match_data
) {
187 } else if (a
.match_data
) {
188 if (a
.data
< b
.data
) {
190 } else if (a
.data
> b
.data
) {
196 } else if (a
.e
> b
.e
) {
202 static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a
,
203 MemoryRegionIoeventfd b
)
205 return !memory_region_ioeventfd_before(a
, b
)
206 && !memory_region_ioeventfd_before(b
, a
);
209 typedef struct FlatRange FlatRange
;
210 typedef struct FlatView FlatView
;
212 /* Range of memory in the global map. Addresses are absolute. */
215 hwaddr offset_in_region
;
217 uint8_t dirty_log_mask
;
222 /* Flattened global view of current active memory hierarchy. Kept in sorted
228 unsigned nr_allocated
;
231 typedef struct AddressSpaceOps AddressSpaceOps
;
233 #define FOR_EACH_FLAT_RANGE(var, view) \
234 for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
236 static bool flatrange_equal(FlatRange
*a
, FlatRange
*b
)
238 return a
->mr
== b
->mr
239 && addrrange_equal(a
->addr
, b
->addr
)
240 && a
->offset_in_region
== b
->offset_in_region
241 && a
->romd_mode
== b
->romd_mode
242 && a
->readonly
== b
->readonly
;
245 static void flatview_init(FlatView
*view
)
249 view
->nr_allocated
= 0;
252 /* Insert a range into a given position. Caller is responsible for maintaining
255 static void flatview_insert(FlatView
*view
, unsigned pos
, FlatRange
*range
)
257 if (view
->nr
== view
->nr_allocated
) {
258 view
->nr_allocated
= MAX(2 * view
->nr
, 10);
259 view
->ranges
= g_realloc(view
->ranges
,
260 view
->nr_allocated
* sizeof(*view
->ranges
));
262 memmove(view
->ranges
+ pos
+ 1, view
->ranges
+ pos
,
263 (view
->nr
- pos
) * sizeof(FlatRange
));
264 view
->ranges
[pos
] = *range
;
268 static void flatview_destroy(FlatView
*view
)
270 g_free(view
->ranges
);
273 static bool can_merge(FlatRange
*r1
, FlatRange
*r2
)
275 return int128_eq(addrrange_end(r1
->addr
), r2
->addr
.start
)
277 && int128_eq(int128_add(int128_make64(r1
->offset_in_region
),
279 int128_make64(r2
->offset_in_region
))
280 && r1
->dirty_log_mask
== r2
->dirty_log_mask
281 && r1
->romd_mode
== r2
->romd_mode
282 && r1
->readonly
== r2
->readonly
;
285 /* Attempt to simplify a view by merging ajacent ranges */
286 static void flatview_simplify(FlatView
*view
)
291 while (i
< view
->nr
) {
294 && can_merge(&view
->ranges
[j
-1], &view
->ranges
[j
])) {
295 int128_addto(&view
->ranges
[i
].addr
.size
, view
->ranges
[j
].addr
.size
);
299 memmove(&view
->ranges
[i
], &view
->ranges
[j
],
300 (view
->nr
- j
) * sizeof(view
->ranges
[j
]));
305 static void memory_region_read_accessor(void *opaque
,
312 MemoryRegion
*mr
= opaque
;
315 if (mr
->flush_coalesced_mmio
) {
316 qemu_flush_coalesced_mmio_buffer();
318 tmp
= mr
->ops
->read(mr
->opaque
, addr
, size
);
319 *value
|= (tmp
& mask
) << shift
;
322 static void memory_region_write_accessor(void *opaque
,
329 MemoryRegion
*mr
= opaque
;
332 if (mr
->flush_coalesced_mmio
) {
333 qemu_flush_coalesced_mmio_buffer();
335 tmp
= (*value
>> shift
) & mask
;
336 mr
->ops
->write(mr
->opaque
, addr
, tmp
, size
);
339 static void access_with_adjusted_size(hwaddr addr
,
342 unsigned access_size_min
,
343 unsigned access_size_max
,
344 void (*access
)(void *opaque
,
352 uint64_t access_mask
;
353 unsigned access_size
;
356 if (!access_size_min
) {
359 if (!access_size_max
) {
362 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
363 access_mask
= -1ULL >> (64 - access_size
* 8);
364 for (i
= 0; i
< size
; i
+= access_size
) {
365 #ifdef TARGET_WORDS_BIGENDIAN
366 access(opaque
, addr
+ i
, value
, access_size
,
367 (size
- access_size
- i
) * 8, access_mask
);
369 access(opaque
, addr
+ i
, value
, access_size
, i
* 8, access_mask
);
374 static const MemoryRegionPortio
*find_portio(MemoryRegion
*mr
, uint64_t offset
,
375 unsigned width
, bool write
)
377 const MemoryRegionPortio
*mrp
;
379 for (mrp
= mr
->ops
->old_portio
; mrp
->size
; ++mrp
) {
380 if (offset
>= mrp
->offset
&& offset
< mrp
->offset
+ mrp
->len
381 && width
== mrp
->size
382 && (write
? (bool)mrp
->write
: (bool)mrp
->read
)) {
389 static void memory_region_iorange_read(IORange
*iorange
,
394 MemoryRegionIORange
*mrio
395 = container_of(iorange
, MemoryRegionIORange
, iorange
);
396 MemoryRegion
*mr
= mrio
->mr
;
398 offset
+= mrio
->offset
;
399 if (mr
->ops
->old_portio
) {
400 const MemoryRegionPortio
*mrp
= find_portio(mr
, offset
- mrio
->offset
,
403 *data
= ((uint64_t)1 << (width
* 8)) - 1;
405 *data
= mrp
->read(mr
->opaque
, offset
);
406 } else if (width
== 2) {
407 mrp
= find_portio(mr
, offset
- mrio
->offset
, 1, false);
409 *data
= mrp
->read(mr
->opaque
, offset
) |
410 (mrp
->read(mr
->opaque
, offset
+ 1) << 8);
415 access_with_adjusted_size(offset
, data
, width
,
416 mr
->ops
->impl
.min_access_size
,
417 mr
->ops
->impl
.max_access_size
,
418 memory_region_read_accessor
, mr
);
421 static void memory_region_iorange_write(IORange
*iorange
,
426 MemoryRegionIORange
*mrio
427 = container_of(iorange
, MemoryRegionIORange
, iorange
);
428 MemoryRegion
*mr
= mrio
->mr
;
430 offset
+= mrio
->offset
;
431 if (mr
->ops
->old_portio
) {
432 const MemoryRegionPortio
*mrp
= find_portio(mr
, offset
- mrio
->offset
,
436 mrp
->write(mr
->opaque
, offset
, data
);
437 } else if (width
== 2) {
438 mrp
= find_portio(mr
, offset
- mrio
->offset
, 1, true);
440 mrp
->write(mr
->opaque
, offset
, data
& 0xff);
441 mrp
->write(mr
->opaque
, offset
+ 1, data
>> 8);
445 access_with_adjusted_size(offset
, &data
, width
,
446 mr
->ops
->impl
.min_access_size
,
447 mr
->ops
->impl
.max_access_size
,
448 memory_region_write_accessor
, mr
);
451 static void memory_region_iorange_destructor(IORange
*iorange
)
453 g_free(container_of(iorange
, MemoryRegionIORange
, iorange
));
456 const IORangeOps memory_region_iorange_ops
= {
457 .read
= memory_region_iorange_read
,
458 .write
= memory_region_iorange_write
,
459 .destructor
= memory_region_iorange_destructor
,
462 static AddressSpace
*memory_region_to_address_space(MemoryRegion
*mr
)
469 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
470 if (mr
== as
->root
) {
477 /* Render a memory region into the global view. Ranges in @view obscure
480 static void render_memory_region(FlatView
*view
,
486 MemoryRegion
*subregion
;
488 hwaddr offset_in_region
;
498 int128_addto(&base
, int128_make64(mr
->addr
));
499 readonly
|= mr
->readonly
;
501 tmp
= addrrange_make(base
, mr
->size
);
503 if (!addrrange_intersects(tmp
, clip
)) {
507 clip
= addrrange_intersection(tmp
, clip
);
510 int128_subfrom(&base
, int128_make64(mr
->alias
->addr
));
511 int128_subfrom(&base
, int128_make64(mr
->alias_offset
));
512 render_memory_region(view
, mr
->alias
, base
, clip
, readonly
);
516 /* Render subregions in priority order. */
517 QTAILQ_FOREACH(subregion
, &mr
->subregions
, subregions_link
) {
518 render_memory_region(view
, subregion
, base
, clip
, readonly
);
521 if (!mr
->terminates
) {
525 offset_in_region
= int128_get64(int128_sub(clip
.start
, base
));
529 /* Render the region itself into any gaps left by the current view. */
530 for (i
= 0; i
< view
->nr
&& int128_nz(remain
); ++i
) {
531 if (int128_ge(base
, addrrange_end(view
->ranges
[i
].addr
))) {
534 if (int128_lt(base
, view
->ranges
[i
].addr
.start
)) {
535 now
= int128_min(remain
,
536 int128_sub(view
->ranges
[i
].addr
.start
, base
));
538 fr
.offset_in_region
= offset_in_region
;
539 fr
.addr
= addrrange_make(base
, now
);
540 fr
.dirty_log_mask
= mr
->dirty_log_mask
;
541 fr
.romd_mode
= mr
->romd_mode
;
542 fr
.readonly
= readonly
;
543 flatview_insert(view
, i
, &fr
);
545 int128_addto(&base
, now
);
546 offset_in_region
+= int128_get64(now
);
547 int128_subfrom(&remain
, now
);
549 now
= int128_sub(int128_min(int128_add(base
, remain
),
550 addrrange_end(view
->ranges
[i
].addr
)),
552 int128_addto(&base
, now
);
553 offset_in_region
+= int128_get64(now
);
554 int128_subfrom(&remain
, now
);
556 if (int128_nz(remain
)) {
558 fr
.offset_in_region
= offset_in_region
;
559 fr
.addr
= addrrange_make(base
, remain
);
560 fr
.dirty_log_mask
= mr
->dirty_log_mask
;
561 fr
.romd_mode
= mr
->romd_mode
;
562 fr
.readonly
= readonly
;
563 flatview_insert(view
, i
, &fr
);
567 /* Render a memory topology into a list of disjoint absolute ranges. */
568 static FlatView
generate_memory_topology(MemoryRegion
*mr
)
572 flatview_init(&view
);
575 render_memory_region(&view
, mr
, int128_zero(),
576 addrrange_make(int128_zero(), int128_2_64()), false);
578 flatview_simplify(&view
);
583 static void address_space_add_del_ioeventfds(AddressSpace
*as
,
584 MemoryRegionIoeventfd
*fds_new
,
586 MemoryRegionIoeventfd
*fds_old
,
590 MemoryRegionIoeventfd
*fd
;
591 MemoryRegionSection section
;
593 /* Generate a symmetric difference of the old and new fd sets, adding
594 * and deleting as necessary.
598 while (iold
< fds_old_nb
|| inew
< fds_new_nb
) {
599 if (iold
< fds_old_nb
600 && (inew
== fds_new_nb
601 || memory_region_ioeventfd_before(fds_old
[iold
],
604 section
= (MemoryRegionSection
) {
606 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
607 .size
= int128_get64(fd
->addr
.size
),
609 MEMORY_LISTENER_CALL(eventfd_del
, Forward
, §ion
,
610 fd
->match_data
, fd
->data
, fd
->e
);
612 } else if (inew
< fds_new_nb
613 && (iold
== fds_old_nb
614 || memory_region_ioeventfd_before(fds_new
[inew
],
617 section
= (MemoryRegionSection
) {
619 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
620 .size
= int128_get64(fd
->addr
.size
),
622 MEMORY_LISTENER_CALL(eventfd_add
, Reverse
, §ion
,
623 fd
->match_data
, fd
->data
, fd
->e
);
632 static void address_space_update_ioeventfds(AddressSpace
*as
)
635 unsigned ioeventfd_nb
= 0;
636 MemoryRegionIoeventfd
*ioeventfds
= NULL
;
640 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
641 for (i
= 0; i
< fr
->mr
->ioeventfd_nb
; ++i
) {
642 tmp
= addrrange_shift(fr
->mr
->ioeventfds
[i
].addr
,
643 int128_sub(fr
->addr
.start
,
644 int128_make64(fr
->offset_in_region
)));
645 if (addrrange_intersects(fr
->addr
, tmp
)) {
647 ioeventfds
= g_realloc(ioeventfds
,
648 ioeventfd_nb
* sizeof(*ioeventfds
));
649 ioeventfds
[ioeventfd_nb
-1] = fr
->mr
->ioeventfds
[i
];
650 ioeventfds
[ioeventfd_nb
-1].addr
= tmp
;
655 address_space_add_del_ioeventfds(as
, ioeventfds
, ioeventfd_nb
,
656 as
->ioeventfds
, as
->ioeventfd_nb
);
658 g_free(as
->ioeventfds
);
659 as
->ioeventfds
= ioeventfds
;
660 as
->ioeventfd_nb
= ioeventfd_nb
;
663 static void address_space_update_topology_pass(AddressSpace
*as
,
669 FlatRange
*frold
, *frnew
;
671 /* Generate a symmetric difference of the old and new memory maps.
672 * Kill ranges in the old map, and instantiate ranges in the new map.
675 while (iold
< old_view
.nr
|| inew
< new_view
.nr
) {
676 if (iold
< old_view
.nr
) {
677 frold
= &old_view
.ranges
[iold
];
681 if (inew
< new_view
.nr
) {
682 frnew
= &new_view
.ranges
[inew
];
689 || int128_lt(frold
->addr
.start
, frnew
->addr
.start
)
690 || (int128_eq(frold
->addr
.start
, frnew
->addr
.start
)
691 && !flatrange_equal(frold
, frnew
)))) {
692 /* In old, but (not in new, or in new but attributes changed). */
695 MEMORY_LISTENER_UPDATE_REGION(frold
, as
, Reverse
, region_del
);
699 } else if (frold
&& frnew
&& flatrange_equal(frold
, frnew
)) {
700 /* In both (logging may have changed) */
703 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_nop
);
704 if (frold
->dirty_log_mask
&& !frnew
->dirty_log_mask
) {
705 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Reverse
, log_stop
);
706 } else if (frnew
->dirty_log_mask
&& !frold
->dirty_log_mask
) {
707 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, log_start
);
717 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_add
);
726 static void address_space_update_topology(AddressSpace
*as
)
728 FlatView old_view
= *as
->current_map
;
729 FlatView new_view
= generate_memory_topology(as
->root
);
731 address_space_update_topology_pass(as
, old_view
, new_view
, false);
732 address_space_update_topology_pass(as
, old_view
, new_view
, true);
734 *as
->current_map
= new_view
;
735 flatview_destroy(&old_view
);
736 address_space_update_ioeventfds(as
);
739 void memory_region_transaction_begin(void)
741 qemu_flush_coalesced_mmio_buffer();
742 ++memory_region_transaction_depth
;
745 void memory_region_transaction_commit(void)
749 assert(memory_region_transaction_depth
);
750 --memory_region_transaction_depth
;
751 if (!memory_region_transaction_depth
&& memory_region_update_pending
) {
752 memory_region_update_pending
= false;
753 MEMORY_LISTENER_CALL_GLOBAL(begin
, Forward
);
755 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
756 address_space_update_topology(as
);
759 MEMORY_LISTENER_CALL_GLOBAL(commit
, Forward
);
763 static void memory_region_destructor_none(MemoryRegion
*mr
)
767 static void memory_region_destructor_ram(MemoryRegion
*mr
)
769 qemu_ram_free(mr
->ram_addr
);
772 static void memory_region_destructor_ram_from_ptr(MemoryRegion
*mr
)
774 qemu_ram_free_from_ptr(mr
->ram_addr
);
777 static void memory_region_destructor_rom_device(MemoryRegion
*mr
)
779 qemu_ram_free(mr
->ram_addr
& TARGET_PAGE_MASK
);
782 static bool memory_region_wrong_endianness(MemoryRegion
*mr
)
784 #ifdef TARGET_WORDS_BIGENDIAN
785 return mr
->ops
->endianness
== DEVICE_LITTLE_ENDIAN
;
787 return mr
->ops
->endianness
== DEVICE_BIG_ENDIAN
;
791 void memory_region_init(MemoryRegion
*mr
,
795 mr
->ops
= &unassigned_mem_ops
;
798 mr
->size
= int128_make64(size
);
799 if (size
== UINT64_MAX
) {
800 mr
->size
= int128_2_64();
805 mr
->terminates
= false;
807 mr
->romd_mode
= true;
808 mr
->readonly
= false;
809 mr
->rom_device
= false;
810 mr
->destructor
= memory_region_destructor_none
;
812 mr
->may_overlap
= false;
814 QTAILQ_INIT(&mr
->subregions
);
815 memset(&mr
->subregions_link
, 0, sizeof mr
->subregions_link
);
816 QTAILQ_INIT(&mr
->coalesced
);
817 mr
->name
= g_strdup(name
);
818 mr
->dirty_log_mask
= 0;
819 mr
->ioeventfd_nb
= 0;
820 mr
->ioeventfds
= NULL
;
821 mr
->flush_coalesced_mmio
= false;
824 static uint64_t unassigned_mem_read(void *opaque
, hwaddr addr
,
827 #ifdef DEBUG_UNASSIGNED
828 printf("Unassigned mem read " TARGET_FMT_plx
"\n", addr
);
830 #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
831 cpu_unassigned_access(cpu_single_env
, addr
, 0, 0, 0, size
);
836 static void unassigned_mem_write(void *opaque
, hwaddr addr
,
837 uint64_t val
, unsigned size
)
839 #ifdef DEBUG_UNASSIGNED
840 printf("Unassigned mem write " TARGET_FMT_plx
" = 0x%"PRIx64
"\n", addr
, val
);
842 #if defined(TARGET_ALPHA) || defined(TARGET_SPARC) || defined(TARGET_MICROBLAZE)
843 cpu_unassigned_access(cpu_single_env
, addr
, 1, 0, 0, size
);
847 static bool unassigned_mem_accepts(void *opaque
, hwaddr addr
,
848 unsigned size
, bool is_write
)
853 const MemoryRegionOps unassigned_mem_ops
= {
854 .valid
.accepts
= unassigned_mem_accepts
,
855 .endianness
= DEVICE_NATIVE_ENDIAN
,
858 bool memory_region_access_valid(MemoryRegion
*mr
,
863 int access_size_min
, access_size_max
;
866 if (!mr
->ops
->valid
.unaligned
&& (addr
& (size
- 1))) {
870 if (!mr
->ops
->valid
.accepts
) {
874 access_size_min
= mr
->ops
->valid
.min_access_size
;
875 if (!mr
->ops
->valid
.min_access_size
) {
879 access_size_max
= mr
->ops
->valid
.max_access_size
;
880 if (!mr
->ops
->valid
.max_access_size
) {
884 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
885 for (i
= 0; i
< size
; i
+= access_size
) {
886 if (!mr
->ops
->valid
.accepts(mr
->opaque
, addr
+ i
, access_size
,
895 static uint64_t memory_region_dispatch_read1(MemoryRegion
*mr
,
901 if (!memory_region_access_valid(mr
, addr
, size
, false)) {
902 return unassigned_mem_read(mr
, addr
, size
);
905 if (!mr
->ops
->read
) {
906 return mr
->ops
->old_mmio
.read
[ctz32(size
)](mr
->opaque
, addr
);
909 /* FIXME: support unaligned access */
910 access_with_adjusted_size(addr
, &data
, size
,
911 mr
->ops
->impl
.min_access_size
,
912 mr
->ops
->impl
.max_access_size
,
913 memory_region_read_accessor
, mr
);
918 static void adjust_endianness(MemoryRegion
*mr
, uint64_t *data
, unsigned size
)
920 if (memory_region_wrong_endianness(mr
)) {
925 *data
= bswap16(*data
);
928 *data
= bswap32(*data
);
936 static uint64_t memory_region_dispatch_read(MemoryRegion
*mr
,
942 ret
= memory_region_dispatch_read1(mr
, addr
, size
);
943 adjust_endianness(mr
, &ret
, size
);
947 static void memory_region_dispatch_write(MemoryRegion
*mr
,
952 if (!memory_region_access_valid(mr
, addr
, size
, true)) {
953 unassigned_mem_write(mr
, addr
, data
, size
);
957 adjust_endianness(mr
, &data
, size
);
959 if (!mr
->ops
->write
) {
960 mr
->ops
->old_mmio
.write
[ctz32(size
)](mr
->opaque
, addr
, data
);
964 /* FIXME: support unaligned access */
965 access_with_adjusted_size(addr
, &data
, size
,
966 mr
->ops
->impl
.min_access_size
,
967 mr
->ops
->impl
.max_access_size
,
968 memory_region_write_accessor
, mr
);
971 void memory_region_init_io(MemoryRegion
*mr
,
972 const MemoryRegionOps
*ops
,
977 memory_region_init(mr
, name
, size
);
980 mr
->terminates
= true;
981 mr
->ram_addr
= ~(ram_addr_t
)0;
984 void memory_region_init_ram(MemoryRegion
*mr
,
988 memory_region_init(mr
, name
, size
);
990 mr
->terminates
= true;
991 mr
->destructor
= memory_region_destructor_ram
;
992 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
995 void memory_region_init_ram_ptr(MemoryRegion
*mr
,
1000 memory_region_init(mr
, name
, size
);
1002 mr
->terminates
= true;
1003 mr
->destructor
= memory_region_destructor_ram_from_ptr
;
1004 mr
->ram_addr
= qemu_ram_alloc_from_ptr(size
, ptr
, mr
);
1007 void memory_region_init_alias(MemoryRegion
*mr
,
1013 memory_region_init(mr
, name
, size
);
1015 mr
->alias_offset
= offset
;
1018 void memory_region_init_rom_device(MemoryRegion
*mr
,
1019 const MemoryRegionOps
*ops
,
1024 memory_region_init(mr
, name
, size
);
1026 mr
->opaque
= opaque
;
1027 mr
->terminates
= true;
1028 mr
->rom_device
= true;
1029 mr
->destructor
= memory_region_destructor_rom_device
;
1030 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
1033 void memory_region_init_reservation(MemoryRegion
*mr
,
1037 memory_region_init_io(mr
, &unassigned_mem_ops
, mr
, name
, size
);
1040 void memory_region_destroy(MemoryRegion
*mr
)
1042 assert(QTAILQ_EMPTY(&mr
->subregions
));
1043 assert(memory_region_transaction_depth
== 0);
1045 memory_region_clear_coalescing(mr
);
1046 g_free((char *)mr
->name
);
1047 g_free(mr
->ioeventfds
);
1050 uint64_t memory_region_size(MemoryRegion
*mr
)
1052 if (int128_eq(mr
->size
, int128_2_64())) {
1055 return int128_get64(mr
->size
);
1058 const char *memory_region_name(MemoryRegion
*mr
)
1063 bool memory_region_is_ram(MemoryRegion
*mr
)
1068 bool memory_region_is_logging(MemoryRegion
*mr
)
1070 return mr
->dirty_log_mask
;
1073 bool memory_region_is_rom(MemoryRegion
*mr
)
1075 return mr
->ram
&& mr
->readonly
;
1078 void memory_region_set_log(MemoryRegion
*mr
, bool log
, unsigned client
)
1080 uint8_t mask
= 1 << client
;
1082 memory_region_transaction_begin();
1083 mr
->dirty_log_mask
= (mr
->dirty_log_mask
& ~mask
) | (log
* mask
);
1084 memory_region_update_pending
|= mr
->enabled
;
1085 memory_region_transaction_commit();
1088 bool memory_region_get_dirty(MemoryRegion
*mr
, hwaddr addr
,
1089 hwaddr size
, unsigned client
)
1091 assert(mr
->terminates
);
1092 return cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1096 void memory_region_set_dirty(MemoryRegion
*mr
, hwaddr addr
,
1099 assert(mr
->terminates
);
1100 return cpu_physical_memory_set_dirty_range(mr
->ram_addr
+ addr
, size
, -1);
1103 bool memory_region_test_and_clear_dirty(MemoryRegion
*mr
, hwaddr addr
,
1104 hwaddr size
, unsigned client
)
1107 assert(mr
->terminates
);
1108 ret
= cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1111 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1112 mr
->ram_addr
+ addr
+ size
,
1119 void memory_region_sync_dirty_bitmap(MemoryRegion
*mr
)
1124 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1125 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1127 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1133 void memory_region_set_readonly(MemoryRegion
*mr
, bool readonly
)
1135 if (mr
->readonly
!= readonly
) {
1136 memory_region_transaction_begin();
1137 mr
->readonly
= readonly
;
1138 memory_region_update_pending
|= mr
->enabled
;
1139 memory_region_transaction_commit();
1143 void memory_region_rom_device_set_romd(MemoryRegion
*mr
, bool romd_mode
)
1145 if (mr
->romd_mode
!= romd_mode
) {
1146 memory_region_transaction_begin();
1147 mr
->romd_mode
= romd_mode
;
1148 memory_region_update_pending
|= mr
->enabled
;
1149 memory_region_transaction_commit();
1153 void memory_region_reset_dirty(MemoryRegion
*mr
, hwaddr addr
,
1154 hwaddr size
, unsigned client
)
1156 assert(mr
->terminates
);
1157 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1158 mr
->ram_addr
+ addr
+ size
,
1162 void *memory_region_get_ram_ptr(MemoryRegion
*mr
)
1165 return memory_region_get_ram_ptr(mr
->alias
) + mr
->alias_offset
;
1168 assert(mr
->terminates
);
1170 return qemu_get_ram_ptr(mr
->ram_addr
& TARGET_PAGE_MASK
);
1173 static void memory_region_update_coalesced_range_as(MemoryRegion
*mr
, AddressSpace
*as
)
1176 CoalescedMemoryRange
*cmr
;
1178 MemoryRegionSection section
;
1180 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1182 section
= (MemoryRegionSection
) {
1183 .address_space
= as
,
1184 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1185 .size
= int128_get64(fr
->addr
.size
),
1188 MEMORY_LISTENER_CALL(coalesced_mmio_del
, Reverse
, §ion
,
1189 int128_get64(fr
->addr
.start
),
1190 int128_get64(fr
->addr
.size
));
1191 QTAILQ_FOREACH(cmr
, &mr
->coalesced
, link
) {
1192 tmp
= addrrange_shift(cmr
->addr
,
1193 int128_sub(fr
->addr
.start
,
1194 int128_make64(fr
->offset_in_region
)));
1195 if (!addrrange_intersects(tmp
, fr
->addr
)) {
1198 tmp
= addrrange_intersection(tmp
, fr
->addr
);
1199 MEMORY_LISTENER_CALL(coalesced_mmio_add
, Forward
, §ion
,
1200 int128_get64(tmp
.start
),
1201 int128_get64(tmp
.size
));
1207 static void memory_region_update_coalesced_range(MemoryRegion
*mr
)
1211 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1212 memory_region_update_coalesced_range_as(mr
, as
);
1216 void memory_region_set_coalescing(MemoryRegion
*mr
)
1218 memory_region_clear_coalescing(mr
);
1219 memory_region_add_coalescing(mr
, 0, int128_get64(mr
->size
));
1222 void memory_region_add_coalescing(MemoryRegion
*mr
,
1226 CoalescedMemoryRange
*cmr
= g_malloc(sizeof(*cmr
));
1228 cmr
->addr
= addrrange_make(int128_make64(offset
), int128_make64(size
));
1229 QTAILQ_INSERT_TAIL(&mr
->coalesced
, cmr
, link
);
1230 memory_region_update_coalesced_range(mr
);
1231 memory_region_set_flush_coalesced(mr
);
1234 void memory_region_clear_coalescing(MemoryRegion
*mr
)
1236 CoalescedMemoryRange
*cmr
;
1238 qemu_flush_coalesced_mmio_buffer();
1239 mr
->flush_coalesced_mmio
= false;
1241 while (!QTAILQ_EMPTY(&mr
->coalesced
)) {
1242 cmr
= QTAILQ_FIRST(&mr
->coalesced
);
1243 QTAILQ_REMOVE(&mr
->coalesced
, cmr
, link
);
1246 memory_region_update_coalesced_range(mr
);
1249 void memory_region_set_flush_coalesced(MemoryRegion
*mr
)
1251 mr
->flush_coalesced_mmio
= true;
1254 void memory_region_clear_flush_coalesced(MemoryRegion
*mr
)
1256 qemu_flush_coalesced_mmio_buffer();
1257 if (QTAILQ_EMPTY(&mr
->coalesced
)) {
1258 mr
->flush_coalesced_mmio
= false;
1262 void memory_region_add_eventfd(MemoryRegion
*mr
,
1269 MemoryRegionIoeventfd mrfd
= {
1270 .addr
.start
= int128_make64(addr
),
1271 .addr
.size
= int128_make64(size
),
1272 .match_data
= match_data
,
1278 adjust_endianness(mr
, &mrfd
.data
, size
);
1279 memory_region_transaction_begin();
1280 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1281 if (memory_region_ioeventfd_before(mrfd
, mr
->ioeventfds
[i
])) {
1286 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1287 sizeof(*mr
->ioeventfds
) * mr
->ioeventfd_nb
);
1288 memmove(&mr
->ioeventfds
[i
+1], &mr
->ioeventfds
[i
],
1289 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
-1 - i
));
1290 mr
->ioeventfds
[i
] = mrfd
;
1291 memory_region_update_pending
|= mr
->enabled
;
1292 memory_region_transaction_commit();
1295 void memory_region_del_eventfd(MemoryRegion
*mr
,
1302 MemoryRegionIoeventfd mrfd
= {
1303 .addr
.start
= int128_make64(addr
),
1304 .addr
.size
= int128_make64(size
),
1305 .match_data
= match_data
,
1311 adjust_endianness(mr
, &mrfd
.data
, size
);
1312 memory_region_transaction_begin();
1313 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1314 if (memory_region_ioeventfd_equal(mrfd
, mr
->ioeventfds
[i
])) {
1318 assert(i
!= mr
->ioeventfd_nb
);
1319 memmove(&mr
->ioeventfds
[i
], &mr
->ioeventfds
[i
+1],
1320 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
- (i
+1)));
1322 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1323 sizeof(*mr
->ioeventfds
)*mr
->ioeventfd_nb
+ 1);
1324 memory_region_update_pending
|= mr
->enabled
;
1325 memory_region_transaction_commit();
1328 static void memory_region_add_subregion_common(MemoryRegion
*mr
,
1330 MemoryRegion
*subregion
)
1332 MemoryRegion
*other
;
1334 memory_region_transaction_begin();
1336 assert(!subregion
->parent
);
1337 subregion
->parent
= mr
;
1338 subregion
->addr
= offset
;
1339 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1340 if (subregion
->may_overlap
|| other
->may_overlap
) {
1343 if (int128_ge(int128_make64(offset
),
1344 int128_add(int128_make64(other
->addr
), other
->size
))
1345 || int128_le(int128_add(int128_make64(offset
), subregion
->size
),
1346 int128_make64(other
->addr
))) {
1350 printf("warning: subregion collision %llx/%llx (%s) "
1351 "vs %llx/%llx (%s)\n",
1352 (unsigned long long)offset
,
1353 (unsigned long long)int128_get64(subregion
->size
),
1355 (unsigned long long)other
->addr
,
1356 (unsigned long long)int128_get64(other
->size
),
1360 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1361 if (subregion
->priority
>= other
->priority
) {
1362 QTAILQ_INSERT_BEFORE(other
, subregion
, subregions_link
);
1366 QTAILQ_INSERT_TAIL(&mr
->subregions
, subregion
, subregions_link
);
1368 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1369 memory_region_transaction_commit();
1373 void memory_region_add_subregion(MemoryRegion
*mr
,
1375 MemoryRegion
*subregion
)
1377 subregion
->may_overlap
= false;
1378 subregion
->priority
= 0;
1379 memory_region_add_subregion_common(mr
, offset
, subregion
);
1382 void memory_region_add_subregion_overlap(MemoryRegion
*mr
,
1384 MemoryRegion
*subregion
,
1387 subregion
->may_overlap
= true;
1388 subregion
->priority
= priority
;
1389 memory_region_add_subregion_common(mr
, offset
, subregion
);
1392 void memory_region_del_subregion(MemoryRegion
*mr
,
1393 MemoryRegion
*subregion
)
1395 memory_region_transaction_begin();
1396 assert(subregion
->parent
== mr
);
1397 subregion
->parent
= NULL
;
1398 QTAILQ_REMOVE(&mr
->subregions
, subregion
, subregions_link
);
1399 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1400 memory_region_transaction_commit();
1403 void memory_region_set_enabled(MemoryRegion
*mr
, bool enabled
)
1405 if (enabled
== mr
->enabled
) {
1408 memory_region_transaction_begin();
1409 mr
->enabled
= enabled
;
1410 memory_region_update_pending
= true;
1411 memory_region_transaction_commit();
1414 void memory_region_set_address(MemoryRegion
*mr
, hwaddr addr
)
1416 MemoryRegion
*parent
= mr
->parent
;
1417 unsigned priority
= mr
->priority
;
1418 bool may_overlap
= mr
->may_overlap
;
1420 if (addr
== mr
->addr
|| !parent
) {
1425 memory_region_transaction_begin();
1426 memory_region_del_subregion(parent
, mr
);
1428 memory_region_add_subregion_overlap(parent
, addr
, mr
, priority
);
1430 memory_region_add_subregion(parent
, addr
, mr
);
1432 memory_region_transaction_commit();
1435 void memory_region_set_alias_offset(MemoryRegion
*mr
, hwaddr offset
)
1439 if (offset
== mr
->alias_offset
) {
1443 memory_region_transaction_begin();
1444 mr
->alias_offset
= offset
;
1445 memory_region_update_pending
|= mr
->enabled
;
1446 memory_region_transaction_commit();
1449 ram_addr_t
memory_region_get_ram_addr(MemoryRegion
*mr
)
1451 return mr
->ram_addr
;
1454 static int cmp_flatrange_addr(const void *addr_
, const void *fr_
)
1456 const AddrRange
*addr
= addr_
;
1457 const FlatRange
*fr
= fr_
;
1459 if (int128_le(addrrange_end(*addr
), fr
->addr
.start
)) {
1461 } else if (int128_ge(addr
->start
, addrrange_end(fr
->addr
))) {
1467 static FlatRange
*address_space_lookup(AddressSpace
*as
, AddrRange addr
)
1469 return bsearch(&addr
, as
->current_map
->ranges
, as
->current_map
->nr
,
1470 sizeof(FlatRange
), cmp_flatrange_addr
);
1473 MemoryRegionSection
memory_region_find(MemoryRegion
*mr
,
1474 hwaddr addr
, uint64_t size
)
1476 MemoryRegionSection ret
= { .mr
= NULL
, .size
= 0 };
1483 for (root
= mr
; root
->parent
; ) {
1484 root
= root
->parent
;
1488 as
= memory_region_to_address_space(root
);
1489 range
= addrrange_make(int128_make64(addr
), int128_make64(size
));
1490 fr
= address_space_lookup(as
, range
);
1495 while (fr
> as
->current_map
->ranges
1496 && addrrange_intersects(fr
[-1].addr
, range
)) {
1501 ret
.address_space
= as
;
1502 range
= addrrange_intersection(range
, fr
->addr
);
1503 ret
.offset_within_region
= fr
->offset_in_region
;
1504 ret
.offset_within_region
+= int128_get64(int128_sub(range
.start
,
1506 ret
.size
= int128_get64(range
.size
);
1507 ret
.offset_within_address_space
= int128_get64(range
.start
);
1508 ret
.readonly
= fr
->readonly
;
1512 void address_space_sync_dirty_bitmap(AddressSpace
*as
)
1516 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1517 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1521 void memory_global_dirty_log_start(void)
1523 global_dirty_log
= true;
1524 MEMORY_LISTENER_CALL_GLOBAL(log_global_start
, Forward
);
1527 void memory_global_dirty_log_stop(void)
1529 global_dirty_log
= false;
1530 MEMORY_LISTENER_CALL_GLOBAL(log_global_stop
, Reverse
);
1533 static void listener_add_address_space(MemoryListener
*listener
,
1538 if (listener
->address_space_filter
1539 && listener
->address_space_filter
!= as
) {
1543 if (global_dirty_log
) {
1544 if (listener
->log_global_start
) {
1545 listener
->log_global_start(listener
);
1549 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1550 MemoryRegionSection section
= {
1552 .address_space
= as
,
1553 .offset_within_region
= fr
->offset_in_region
,
1554 .size
= int128_get64(fr
->addr
.size
),
1555 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1556 .readonly
= fr
->readonly
,
1558 if (listener
->region_add
) {
1559 listener
->region_add(listener
, §ion
);
1564 void memory_listener_register(MemoryListener
*listener
, AddressSpace
*filter
)
1566 MemoryListener
*other
= NULL
;
1569 listener
->address_space_filter
= filter
;
1570 if (QTAILQ_EMPTY(&memory_listeners
)
1571 || listener
->priority
>= QTAILQ_LAST(&memory_listeners
,
1572 memory_listeners
)->priority
) {
1573 QTAILQ_INSERT_TAIL(&memory_listeners
, listener
, link
);
1575 QTAILQ_FOREACH(other
, &memory_listeners
, link
) {
1576 if (listener
->priority
< other
->priority
) {
1580 QTAILQ_INSERT_BEFORE(other
, listener
, link
);
1583 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1584 listener_add_address_space(listener
, as
);
1588 void memory_listener_unregister(MemoryListener
*listener
)
1590 QTAILQ_REMOVE(&memory_listeners
, listener
, link
);
1593 void address_space_init(AddressSpace
*as
, MemoryRegion
*root
)
1595 memory_region_transaction_begin();
1597 as
->current_map
= g_new(FlatView
, 1);
1598 flatview_init(as
->current_map
);
1599 as
->ioeventfd_nb
= 0;
1600 as
->ioeventfds
= NULL
;
1601 QTAILQ_INSERT_TAIL(&address_spaces
, as
, address_spaces_link
);
1603 address_space_init_dispatch(as
);
1604 memory_region_update_pending
|= root
->enabled
;
1605 memory_region_transaction_commit();
1608 void address_space_destroy(AddressSpace
*as
)
1610 /* Flush out anything from MemoryListeners listening in on this */
1611 memory_region_transaction_begin();
1613 memory_region_transaction_commit();
1614 QTAILQ_REMOVE(&address_spaces
, as
, address_spaces_link
);
1615 address_space_destroy_dispatch(as
);
1616 flatview_destroy(as
->current_map
);
1617 g_free(as
->current_map
);
1618 g_free(as
->ioeventfds
);
1621 uint64_t io_mem_read(MemoryRegion
*mr
, hwaddr addr
, unsigned size
)
1623 return memory_region_dispatch_read(mr
, addr
, size
);
1626 void io_mem_write(MemoryRegion
*mr
, hwaddr addr
,
1627 uint64_t val
, unsigned size
)
1629 memory_region_dispatch_write(mr
, addr
, val
, size
);
1632 typedef struct MemoryRegionList MemoryRegionList
;
1634 struct MemoryRegionList
{
1635 const MemoryRegion
*mr
;
1637 QTAILQ_ENTRY(MemoryRegionList
) queue
;
1640 typedef QTAILQ_HEAD(queue
, MemoryRegionList
) MemoryRegionListHead
;
1642 static void mtree_print_mr(fprintf_function mon_printf
, void *f
,
1643 const MemoryRegion
*mr
, unsigned int level
,
1645 MemoryRegionListHead
*alias_print_queue
)
1647 MemoryRegionList
*new_ml
, *ml
, *next_ml
;
1648 MemoryRegionListHead submr_print_queue
;
1649 const MemoryRegion
*submr
;
1652 if (!mr
|| !mr
->enabled
) {
1656 for (i
= 0; i
< level
; i
++) {
1661 MemoryRegionList
*ml
;
1664 /* check if the alias is already in the queue */
1665 QTAILQ_FOREACH(ml
, alias_print_queue
, queue
) {
1666 if (ml
->mr
== mr
->alias
&& !ml
->printed
) {
1672 ml
= g_new(MemoryRegionList
, 1);
1674 ml
->printed
= false;
1675 QTAILQ_INSERT_TAIL(alias_print_queue
, ml
, queue
);
1677 mon_printf(f
, TARGET_FMT_plx
"-" TARGET_FMT_plx
1678 " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx
1679 "-" TARGET_FMT_plx
"\n",
1682 + (hwaddr
)int128_get64(mr
->size
) - 1,
1684 mr
->romd_mode
? 'R' : '-',
1685 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1691 + (hwaddr
)int128_get64(mr
->size
) - 1);
1694 TARGET_FMT_plx
"-" TARGET_FMT_plx
" (prio %d, %c%c): %s\n",
1697 + (hwaddr
)int128_get64(mr
->size
) - 1,
1699 mr
->romd_mode
? 'R' : '-',
1700 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1705 QTAILQ_INIT(&submr_print_queue
);
1707 QTAILQ_FOREACH(submr
, &mr
->subregions
, subregions_link
) {
1708 new_ml
= g_new(MemoryRegionList
, 1);
1710 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1711 if (new_ml
->mr
->addr
< ml
->mr
->addr
||
1712 (new_ml
->mr
->addr
== ml
->mr
->addr
&&
1713 new_ml
->mr
->priority
> ml
->mr
->priority
)) {
1714 QTAILQ_INSERT_BEFORE(ml
, new_ml
, queue
);
1720 QTAILQ_INSERT_TAIL(&submr_print_queue
, new_ml
, queue
);
1724 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1725 mtree_print_mr(mon_printf
, f
, ml
->mr
, level
+ 1, base
+ mr
->addr
,
1729 QTAILQ_FOREACH_SAFE(ml
, &submr_print_queue
, queue
, next_ml
) {
1734 void mtree_info(fprintf_function mon_printf
, void *f
)
1736 MemoryRegionListHead ml_head
;
1737 MemoryRegionList
*ml
, *ml2
;
1740 QTAILQ_INIT(&ml_head
);
1742 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1746 mon_printf(f
, "%s\n", as
->name
);
1747 mtree_print_mr(mon_printf
, f
, as
->root
, 0, 0, &ml_head
);
1750 mon_printf(f
, "aliases\n");
1751 /* print aliased regions */
1752 QTAILQ_FOREACH(ml
, &ml_head
, queue
) {
1754 mon_printf(f
, "%s\n", ml
->mr
->name
);
1755 mtree_print_mr(mon_printf
, f
, ml
->mr
, 0, 0, &ml_head
);
1759 QTAILQ_FOREACH_SAFE(ml
, &ml_head
, queue
, ml2
) {