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 "qom/object.h"
21 #include "sysemu/kvm.h"
24 #include "exec/memory-internal.h"
26 //#define DEBUG_UNASSIGNED
28 static unsigned memory_region_transaction_depth
;
29 static bool memory_region_update_pending
;
30 static bool global_dirty_log
= false;
32 static QTAILQ_HEAD(memory_listeners
, MemoryListener
) memory_listeners
33 = QTAILQ_HEAD_INITIALIZER(memory_listeners
);
35 static QTAILQ_HEAD(, AddressSpace
) address_spaces
36 = QTAILQ_HEAD_INITIALIZER(address_spaces
);
38 typedef struct AddrRange AddrRange
;
41 * Note using signed integers limits us to physical addresses at most
42 * 63 bits wide. They are needed for negative offsetting in aliases
43 * (large MemoryRegion::alias_offset).
50 static AddrRange
addrrange_make(Int128 start
, Int128 size
)
52 return (AddrRange
) { start
, size
};
55 static bool addrrange_equal(AddrRange r1
, AddrRange r2
)
57 return int128_eq(r1
.start
, r2
.start
) && int128_eq(r1
.size
, r2
.size
);
60 static Int128
addrrange_end(AddrRange r
)
62 return int128_add(r
.start
, r
.size
);
65 static AddrRange
addrrange_shift(AddrRange range
, Int128 delta
)
67 int128_addto(&range
.start
, delta
);
71 static bool addrrange_contains(AddrRange range
, Int128 addr
)
73 return int128_ge(addr
, range
.start
)
74 && int128_lt(addr
, addrrange_end(range
));
77 static bool addrrange_intersects(AddrRange r1
, AddrRange r2
)
79 return addrrange_contains(r1
, r2
.start
)
80 || addrrange_contains(r2
, r1
.start
);
83 static AddrRange
addrrange_intersection(AddrRange r1
, AddrRange r2
)
85 Int128 start
= int128_max(r1
.start
, r2
.start
);
86 Int128 end
= int128_min(addrrange_end(r1
), addrrange_end(r2
));
87 return addrrange_make(start
, int128_sub(end
, start
));
90 enum ListenerDirection
{ Forward
, Reverse
};
92 static bool memory_listener_match(MemoryListener
*listener
,
93 MemoryRegionSection
*section
)
95 return !listener
->address_space_filter
96 || listener
->address_space_filter
== section
->address_space
;
99 #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \
101 MemoryListener *_listener; \
103 switch (_direction) { \
105 QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
106 if (_listener->_callback) { \
107 _listener->_callback(_listener, ##_args); \
112 QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
113 memory_listeners, link) { \
114 if (_listener->_callback) { \
115 _listener->_callback(_listener, ##_args); \
124 #define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \
126 MemoryListener *_listener; \
128 switch (_direction) { \
130 QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
131 if (_listener->_callback \
132 && memory_listener_match(_listener, _section)) { \
133 _listener->_callback(_listener, _section, ##_args); \
138 QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
139 memory_listeners, link) { \
140 if (_listener->_callback \
141 && memory_listener_match(_listener, _section)) { \
142 _listener->_callback(_listener, _section, ##_args); \
151 /* No need to ref/unref .mr, the FlatRange keeps it alive. */
152 #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \
153 MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \
155 .address_space = (as), \
156 .offset_within_region = (fr)->offset_in_region, \
157 .size = (fr)->addr.size, \
158 .offset_within_address_space = int128_get64((fr)->addr.start), \
159 .readonly = (fr)->readonly, \
162 struct CoalescedMemoryRange
{
164 QTAILQ_ENTRY(CoalescedMemoryRange
) link
;
167 struct MemoryRegionIoeventfd
{
174 static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a
,
175 MemoryRegionIoeventfd b
)
177 if (int128_lt(a
.addr
.start
, b
.addr
.start
)) {
179 } else if (int128_gt(a
.addr
.start
, b
.addr
.start
)) {
181 } else if (int128_lt(a
.addr
.size
, b
.addr
.size
)) {
183 } else if (int128_gt(a
.addr
.size
, b
.addr
.size
)) {
185 } else if (a
.match_data
< b
.match_data
) {
187 } else if (a
.match_data
> b
.match_data
) {
189 } else if (a
.match_data
) {
190 if (a
.data
< b
.data
) {
192 } else if (a
.data
> b
.data
) {
198 } else if (a
.e
> b
.e
) {
204 static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a
,
205 MemoryRegionIoeventfd b
)
207 return !memory_region_ioeventfd_before(a
, b
)
208 && !memory_region_ioeventfd_before(b
, a
);
211 typedef struct FlatRange FlatRange
;
212 typedef struct FlatView FlatView
;
214 /* Range of memory in the global map. Addresses are absolute. */
217 hwaddr offset_in_region
;
219 uint8_t dirty_log_mask
;
224 /* Flattened global view of current active memory hierarchy. Kept in sorted
230 unsigned nr_allocated
;
233 typedef struct AddressSpaceOps AddressSpaceOps
;
235 #define FOR_EACH_FLAT_RANGE(var, view) \
236 for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
238 static bool flatrange_equal(FlatRange
*a
, FlatRange
*b
)
240 return a
->mr
== b
->mr
241 && addrrange_equal(a
->addr
, b
->addr
)
242 && a
->offset_in_region
== b
->offset_in_region
243 && a
->romd_mode
== b
->romd_mode
244 && a
->readonly
== b
->readonly
;
247 static void flatview_init(FlatView
*view
)
251 view
->nr_allocated
= 0;
254 /* Insert a range into a given position. Caller is responsible for maintaining
257 static void flatview_insert(FlatView
*view
, unsigned pos
, FlatRange
*range
)
259 if (view
->nr
== view
->nr_allocated
) {
260 view
->nr_allocated
= MAX(2 * view
->nr
, 10);
261 view
->ranges
= g_realloc(view
->ranges
,
262 view
->nr_allocated
* sizeof(*view
->ranges
));
264 memmove(view
->ranges
+ pos
+ 1, view
->ranges
+ pos
,
265 (view
->nr
- pos
) * sizeof(FlatRange
));
266 view
->ranges
[pos
] = *range
;
267 memory_region_ref(range
->mr
);
271 static void flatview_destroy(FlatView
*view
)
275 for (i
= 0; i
< view
->nr
; i
++) {
276 memory_region_unref(view
->ranges
[i
].mr
);
278 g_free(view
->ranges
);
281 static bool can_merge(FlatRange
*r1
, FlatRange
*r2
)
283 return int128_eq(addrrange_end(r1
->addr
), r2
->addr
.start
)
285 && int128_eq(int128_add(int128_make64(r1
->offset_in_region
),
287 int128_make64(r2
->offset_in_region
))
288 && r1
->dirty_log_mask
== r2
->dirty_log_mask
289 && r1
->romd_mode
== r2
->romd_mode
290 && r1
->readonly
== r2
->readonly
;
293 /* Attempt to simplify a view by merging adjacent ranges */
294 static void flatview_simplify(FlatView
*view
)
299 while (i
< view
->nr
) {
302 && can_merge(&view
->ranges
[j
-1], &view
->ranges
[j
])) {
303 int128_addto(&view
->ranges
[i
].addr
.size
, view
->ranges
[j
].addr
.size
);
307 memmove(&view
->ranges
[i
], &view
->ranges
[j
],
308 (view
->nr
- j
) * sizeof(view
->ranges
[j
]));
313 static void memory_region_oldmmio_read_accessor(void *opaque
,
320 MemoryRegion
*mr
= opaque
;
323 tmp
= mr
->ops
->old_mmio
.read
[ctz32(size
)](mr
->opaque
, addr
);
324 *value
|= (tmp
& mask
) << shift
;
327 static void memory_region_read_accessor(void *opaque
,
334 MemoryRegion
*mr
= opaque
;
337 if (mr
->flush_coalesced_mmio
) {
338 qemu_flush_coalesced_mmio_buffer();
340 tmp
= mr
->ops
->read(mr
->opaque
, addr
, size
);
341 *value
|= (tmp
& mask
) << shift
;
344 static void memory_region_oldmmio_write_accessor(void *opaque
,
351 MemoryRegion
*mr
= opaque
;
354 tmp
= (*value
>> shift
) & mask
;
355 mr
->ops
->old_mmio
.write
[ctz32(size
)](mr
->opaque
, addr
, tmp
);
358 static void memory_region_write_accessor(void *opaque
,
365 MemoryRegion
*mr
= opaque
;
368 if (mr
->flush_coalesced_mmio
) {
369 qemu_flush_coalesced_mmio_buffer();
371 tmp
= (*value
>> shift
) & mask
;
372 mr
->ops
->write(mr
->opaque
, addr
, tmp
, size
);
375 static void access_with_adjusted_size(hwaddr addr
,
378 unsigned access_size_min
,
379 unsigned access_size_max
,
380 void (*access
)(void *opaque
,
388 uint64_t access_mask
;
389 unsigned access_size
;
392 if (!access_size_min
) {
395 if (!access_size_max
) {
399 /* FIXME: support unaligned access? */
400 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
401 access_mask
= -1ULL >> (64 - access_size
* 8);
402 for (i
= 0; i
< size
; i
+= access_size
) {
403 #ifdef TARGET_WORDS_BIGENDIAN
404 access(opaque
, addr
+ i
, value
, access_size
,
405 (size
- access_size
- i
) * 8, access_mask
);
407 access(opaque
, addr
+ i
, value
, access_size
, i
* 8, access_mask
);
412 static AddressSpace
*memory_region_to_address_space(MemoryRegion
*mr
)
419 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
420 if (mr
== as
->root
) {
427 /* Render a memory region into the global view. Ranges in @view obscure
430 static void render_memory_region(FlatView
*view
,
436 MemoryRegion
*subregion
;
438 hwaddr offset_in_region
;
448 int128_addto(&base
, int128_make64(mr
->addr
));
449 readonly
|= mr
->readonly
;
451 tmp
= addrrange_make(base
, mr
->size
);
453 if (!addrrange_intersects(tmp
, clip
)) {
457 clip
= addrrange_intersection(tmp
, clip
);
460 int128_subfrom(&base
, int128_make64(mr
->alias
->addr
));
461 int128_subfrom(&base
, int128_make64(mr
->alias_offset
));
462 render_memory_region(view
, mr
->alias
, base
, clip
, readonly
);
466 /* Render subregions in priority order. */
467 QTAILQ_FOREACH(subregion
, &mr
->subregions
, subregions_link
) {
468 render_memory_region(view
, subregion
, base
, clip
, readonly
);
471 if (!mr
->terminates
) {
475 offset_in_region
= int128_get64(int128_sub(clip
.start
, base
));
480 fr
.dirty_log_mask
= mr
->dirty_log_mask
;
481 fr
.romd_mode
= mr
->romd_mode
;
482 fr
.readonly
= readonly
;
484 /* Render the region itself into any gaps left by the current view. */
485 for (i
= 0; i
< view
->nr
&& int128_nz(remain
); ++i
) {
486 if (int128_ge(base
, addrrange_end(view
->ranges
[i
].addr
))) {
489 if (int128_lt(base
, view
->ranges
[i
].addr
.start
)) {
490 now
= int128_min(remain
,
491 int128_sub(view
->ranges
[i
].addr
.start
, base
));
492 fr
.offset_in_region
= offset_in_region
;
493 fr
.addr
= addrrange_make(base
, now
);
494 flatview_insert(view
, i
, &fr
);
496 int128_addto(&base
, now
);
497 offset_in_region
+= int128_get64(now
);
498 int128_subfrom(&remain
, now
);
500 now
= int128_sub(int128_min(int128_add(base
, remain
),
501 addrrange_end(view
->ranges
[i
].addr
)),
503 int128_addto(&base
, now
);
504 offset_in_region
+= int128_get64(now
);
505 int128_subfrom(&remain
, now
);
507 if (int128_nz(remain
)) {
508 fr
.offset_in_region
= offset_in_region
;
509 fr
.addr
= addrrange_make(base
, remain
);
510 flatview_insert(view
, i
, &fr
);
514 /* Render a memory topology into a list of disjoint absolute ranges. */
515 static FlatView
generate_memory_topology(MemoryRegion
*mr
)
519 flatview_init(&view
);
522 render_memory_region(&view
, mr
, int128_zero(),
523 addrrange_make(int128_zero(), int128_2_64()), false);
525 flatview_simplify(&view
);
530 static void address_space_add_del_ioeventfds(AddressSpace
*as
,
531 MemoryRegionIoeventfd
*fds_new
,
533 MemoryRegionIoeventfd
*fds_old
,
537 MemoryRegionIoeventfd
*fd
;
538 MemoryRegionSection section
;
540 /* Generate a symmetric difference of the old and new fd sets, adding
541 * and deleting as necessary.
545 while (iold
< fds_old_nb
|| inew
< fds_new_nb
) {
546 if (iold
< fds_old_nb
547 && (inew
== fds_new_nb
548 || memory_region_ioeventfd_before(fds_old
[iold
],
551 section
= (MemoryRegionSection
) {
553 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
554 .size
= fd
->addr
.size
,
556 MEMORY_LISTENER_CALL(eventfd_del
, Forward
, §ion
,
557 fd
->match_data
, fd
->data
, fd
->e
);
559 } else if (inew
< fds_new_nb
560 && (iold
== fds_old_nb
561 || memory_region_ioeventfd_before(fds_new
[inew
],
564 section
= (MemoryRegionSection
) {
566 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
567 .size
= fd
->addr
.size
,
569 MEMORY_LISTENER_CALL(eventfd_add
, Reverse
, §ion
,
570 fd
->match_data
, fd
->data
, fd
->e
);
579 static void address_space_update_ioeventfds(AddressSpace
*as
)
582 unsigned ioeventfd_nb
= 0;
583 MemoryRegionIoeventfd
*ioeventfds
= NULL
;
587 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
588 for (i
= 0; i
< fr
->mr
->ioeventfd_nb
; ++i
) {
589 tmp
= addrrange_shift(fr
->mr
->ioeventfds
[i
].addr
,
590 int128_sub(fr
->addr
.start
,
591 int128_make64(fr
->offset_in_region
)));
592 if (addrrange_intersects(fr
->addr
, tmp
)) {
594 ioeventfds
= g_realloc(ioeventfds
,
595 ioeventfd_nb
* sizeof(*ioeventfds
));
596 ioeventfds
[ioeventfd_nb
-1] = fr
->mr
->ioeventfds
[i
];
597 ioeventfds
[ioeventfd_nb
-1].addr
= tmp
;
602 address_space_add_del_ioeventfds(as
, ioeventfds
, ioeventfd_nb
,
603 as
->ioeventfds
, as
->ioeventfd_nb
);
605 g_free(as
->ioeventfds
);
606 as
->ioeventfds
= ioeventfds
;
607 as
->ioeventfd_nb
= ioeventfd_nb
;
610 static void address_space_update_topology_pass(AddressSpace
*as
,
616 FlatRange
*frold
, *frnew
;
618 /* Generate a symmetric difference of the old and new memory maps.
619 * Kill ranges in the old map, and instantiate ranges in the new map.
622 while (iold
< old_view
.nr
|| inew
< new_view
.nr
) {
623 if (iold
< old_view
.nr
) {
624 frold
= &old_view
.ranges
[iold
];
628 if (inew
< new_view
.nr
) {
629 frnew
= &new_view
.ranges
[inew
];
636 || int128_lt(frold
->addr
.start
, frnew
->addr
.start
)
637 || (int128_eq(frold
->addr
.start
, frnew
->addr
.start
)
638 && !flatrange_equal(frold
, frnew
)))) {
639 /* In old but not in new, or in both but attributes changed. */
642 MEMORY_LISTENER_UPDATE_REGION(frold
, as
, Reverse
, region_del
);
646 } else if (frold
&& frnew
&& flatrange_equal(frold
, frnew
)) {
647 /* In both and unchanged (except logging may have changed) */
650 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_nop
);
651 if (frold
->dirty_log_mask
&& !frnew
->dirty_log_mask
) {
652 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Reverse
, log_stop
);
653 } else if (frnew
->dirty_log_mask
&& !frold
->dirty_log_mask
) {
654 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, log_start
);
664 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_add
);
673 static void address_space_update_topology(AddressSpace
*as
)
675 FlatView old_view
= *as
->current_map
;
676 FlatView new_view
= generate_memory_topology(as
->root
);
678 address_space_update_topology_pass(as
, old_view
, new_view
, false);
679 address_space_update_topology_pass(as
, old_view
, new_view
, true);
681 *as
->current_map
= new_view
;
682 flatview_destroy(&old_view
);
683 address_space_update_ioeventfds(as
);
686 void memory_region_transaction_begin(void)
688 qemu_flush_coalesced_mmio_buffer();
689 ++memory_region_transaction_depth
;
692 void memory_region_transaction_commit(void)
696 assert(memory_region_transaction_depth
);
697 --memory_region_transaction_depth
;
698 if (!memory_region_transaction_depth
&& memory_region_update_pending
) {
699 memory_region_update_pending
= false;
700 MEMORY_LISTENER_CALL_GLOBAL(begin
, Forward
);
702 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
703 address_space_update_topology(as
);
706 MEMORY_LISTENER_CALL_GLOBAL(commit
, Forward
);
710 static void memory_region_destructor_none(MemoryRegion
*mr
)
714 static void memory_region_destructor_ram(MemoryRegion
*mr
)
716 qemu_ram_free(mr
->ram_addr
);
719 static void memory_region_destructor_alias(MemoryRegion
*mr
)
721 memory_region_unref(mr
->alias
);
724 static void memory_region_destructor_ram_from_ptr(MemoryRegion
*mr
)
726 qemu_ram_free_from_ptr(mr
->ram_addr
);
729 static void memory_region_destructor_rom_device(MemoryRegion
*mr
)
731 qemu_ram_free(mr
->ram_addr
& TARGET_PAGE_MASK
);
734 static bool memory_region_wrong_endianness(MemoryRegion
*mr
)
736 #ifdef TARGET_WORDS_BIGENDIAN
737 return mr
->ops
->endianness
== DEVICE_LITTLE_ENDIAN
;
739 return mr
->ops
->endianness
== DEVICE_BIG_ENDIAN
;
743 void memory_region_init(MemoryRegion
*mr
,
748 mr
->ops
= &unassigned_mem_ops
;
751 mr
->iommu_ops
= NULL
;
754 mr
->size
= int128_make64(size
);
755 if (size
== UINT64_MAX
) {
756 mr
->size
= int128_2_64();
761 mr
->terminates
= false;
763 mr
->romd_mode
= true;
764 mr
->readonly
= false;
765 mr
->rom_device
= false;
766 mr
->destructor
= memory_region_destructor_none
;
768 mr
->may_overlap
= false;
770 QTAILQ_INIT(&mr
->subregions
);
771 memset(&mr
->subregions_link
, 0, sizeof mr
->subregions_link
);
772 QTAILQ_INIT(&mr
->coalesced
);
773 mr
->name
= g_strdup(name
);
774 mr
->dirty_log_mask
= 0;
775 mr
->ioeventfd_nb
= 0;
776 mr
->ioeventfds
= NULL
;
777 mr
->flush_coalesced_mmio
= false;
780 static uint64_t unassigned_mem_read(void *opaque
, hwaddr addr
,
783 #ifdef DEBUG_UNASSIGNED
784 printf("Unassigned mem read " TARGET_FMT_plx
"\n", addr
);
786 if (cpu_single_env
!= NULL
) {
787 cpu_unassigned_access(ENV_GET_CPU(cpu_single_env
),
788 addr
, false, false, 0, size
);
793 static void unassigned_mem_write(void *opaque
, hwaddr addr
,
794 uint64_t val
, unsigned size
)
796 #ifdef DEBUG_UNASSIGNED
797 printf("Unassigned mem write " TARGET_FMT_plx
" = 0x%"PRIx64
"\n", addr
, val
);
799 if (cpu_single_env
!= NULL
) {
800 cpu_unassigned_access(ENV_GET_CPU(cpu_single_env
),
801 addr
, true, false, 0, size
);
805 static bool unassigned_mem_accepts(void *opaque
, hwaddr addr
,
806 unsigned size
, bool is_write
)
811 const MemoryRegionOps unassigned_mem_ops
= {
812 .valid
.accepts
= unassigned_mem_accepts
,
813 .endianness
= DEVICE_NATIVE_ENDIAN
,
816 bool memory_region_access_valid(MemoryRegion
*mr
,
821 int access_size_min
, access_size_max
;
824 if (!mr
->ops
->valid
.unaligned
&& (addr
& (size
- 1))) {
828 if (!mr
->ops
->valid
.accepts
) {
832 access_size_min
= mr
->ops
->valid
.min_access_size
;
833 if (!mr
->ops
->valid
.min_access_size
) {
837 access_size_max
= mr
->ops
->valid
.max_access_size
;
838 if (!mr
->ops
->valid
.max_access_size
) {
842 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
843 for (i
= 0; i
< size
; i
+= access_size
) {
844 if (!mr
->ops
->valid
.accepts(mr
->opaque
, addr
+ i
, access_size
,
853 static uint64_t memory_region_dispatch_read1(MemoryRegion
*mr
,
860 access_with_adjusted_size(addr
, &data
, size
,
861 mr
->ops
->impl
.min_access_size
,
862 mr
->ops
->impl
.max_access_size
,
863 memory_region_read_accessor
, mr
);
865 access_with_adjusted_size(addr
, &data
, size
, 1, 4,
866 memory_region_oldmmio_read_accessor
, mr
);
872 static void adjust_endianness(MemoryRegion
*mr
, uint64_t *data
, unsigned size
)
874 if (memory_region_wrong_endianness(mr
)) {
879 *data
= bswap16(*data
);
882 *data
= bswap32(*data
);
885 *data
= bswap64(*data
);
893 static bool memory_region_dispatch_read(MemoryRegion
*mr
,
898 if (!memory_region_access_valid(mr
, addr
, size
, false)) {
899 *pval
= unassigned_mem_read(mr
, addr
, size
);
903 *pval
= memory_region_dispatch_read1(mr
, addr
, size
);
904 adjust_endianness(mr
, pval
, size
);
908 static bool memory_region_dispatch_write(MemoryRegion
*mr
,
913 if (!memory_region_access_valid(mr
, addr
, size
, true)) {
914 unassigned_mem_write(mr
, addr
, data
, size
);
918 adjust_endianness(mr
, &data
, size
);
920 if (mr
->ops
->write
) {
921 access_with_adjusted_size(addr
, &data
, size
,
922 mr
->ops
->impl
.min_access_size
,
923 mr
->ops
->impl
.max_access_size
,
924 memory_region_write_accessor
, mr
);
926 access_with_adjusted_size(addr
, &data
, size
, 1, 4,
927 memory_region_oldmmio_write_accessor
, mr
);
932 void memory_region_init_io(MemoryRegion
*mr
,
934 const MemoryRegionOps
*ops
,
939 memory_region_init(mr
, owner
, name
, size
);
942 mr
->terminates
= true;
943 mr
->ram_addr
= ~(ram_addr_t
)0;
946 void memory_region_init_ram(MemoryRegion
*mr
,
951 memory_region_init(mr
, owner
, name
, size
);
953 mr
->terminates
= true;
954 mr
->destructor
= memory_region_destructor_ram
;
955 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
958 void memory_region_init_ram_ptr(MemoryRegion
*mr
,
964 memory_region_init(mr
, owner
, name
, size
);
966 mr
->terminates
= true;
967 mr
->destructor
= memory_region_destructor_ram_from_ptr
;
968 mr
->ram_addr
= qemu_ram_alloc_from_ptr(size
, ptr
, mr
);
971 void memory_region_init_alias(MemoryRegion
*mr
,
978 memory_region_init(mr
, owner
, name
, size
);
979 memory_region_ref(orig
);
980 mr
->destructor
= memory_region_destructor_alias
;
982 mr
->alias_offset
= offset
;
985 void memory_region_init_rom_device(MemoryRegion
*mr
,
987 const MemoryRegionOps
*ops
,
992 memory_region_init(mr
, owner
, name
, size
);
995 mr
->terminates
= true;
996 mr
->rom_device
= true;
997 mr
->destructor
= memory_region_destructor_rom_device
;
998 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
1001 void memory_region_init_iommu(MemoryRegion
*mr
,
1003 const MemoryRegionIOMMUOps
*ops
,
1007 memory_region_init(mr
, owner
, name
, size
);
1008 mr
->iommu_ops
= ops
,
1009 mr
->terminates
= true; /* then re-forwards */
1010 notifier_list_init(&mr
->iommu_notify
);
1013 void memory_region_init_reservation(MemoryRegion
*mr
,
1018 memory_region_init_io(mr
, owner
, &unassigned_mem_ops
, mr
, name
, size
);
1021 void memory_region_destroy(MemoryRegion
*mr
)
1023 assert(QTAILQ_EMPTY(&mr
->subregions
));
1024 assert(memory_region_transaction_depth
== 0);
1026 memory_region_clear_coalescing(mr
);
1027 g_free((char *)mr
->name
);
1028 g_free(mr
->ioeventfds
);
1031 Object
*memory_region_owner(MemoryRegion
*mr
)
1036 void memory_region_ref(MemoryRegion
*mr
)
1038 if (mr
&& mr
->owner
) {
1039 object_ref(mr
->owner
);
1043 void memory_region_unref(MemoryRegion
*mr
)
1045 if (mr
&& mr
->owner
) {
1046 object_unref(mr
->owner
);
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 bool memory_region_is_iommu(MemoryRegion
*mr
)
1080 return mr
->iommu_ops
;
1083 void memory_region_register_iommu_notifier(MemoryRegion
*mr
, Notifier
*n
)
1085 notifier_list_add(&mr
->iommu_notify
, n
);
1088 void memory_region_unregister_iommu_notifier(Notifier
*n
)
1093 void memory_region_notify_iommu(MemoryRegion
*mr
,
1094 IOMMUTLBEntry entry
)
1096 assert(memory_region_is_iommu(mr
));
1097 notifier_list_notify(&mr
->iommu_notify
, &entry
);
1100 void memory_region_set_log(MemoryRegion
*mr
, bool log
, unsigned client
)
1102 uint8_t mask
= 1 << client
;
1104 memory_region_transaction_begin();
1105 mr
->dirty_log_mask
= (mr
->dirty_log_mask
& ~mask
) | (log
* mask
);
1106 memory_region_update_pending
|= mr
->enabled
;
1107 memory_region_transaction_commit();
1110 bool memory_region_get_dirty(MemoryRegion
*mr
, hwaddr addr
,
1111 hwaddr size
, unsigned client
)
1113 assert(mr
->terminates
);
1114 return cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1118 void memory_region_set_dirty(MemoryRegion
*mr
, hwaddr addr
,
1121 assert(mr
->terminates
);
1122 return cpu_physical_memory_set_dirty_range(mr
->ram_addr
+ addr
, size
, -1);
1125 bool memory_region_test_and_clear_dirty(MemoryRegion
*mr
, hwaddr addr
,
1126 hwaddr size
, unsigned client
)
1129 assert(mr
->terminates
);
1130 ret
= cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1133 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1134 mr
->ram_addr
+ addr
+ size
,
1141 void memory_region_sync_dirty_bitmap(MemoryRegion
*mr
)
1146 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1147 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1149 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1155 void memory_region_set_readonly(MemoryRegion
*mr
, bool readonly
)
1157 if (mr
->readonly
!= readonly
) {
1158 memory_region_transaction_begin();
1159 mr
->readonly
= readonly
;
1160 memory_region_update_pending
|= mr
->enabled
;
1161 memory_region_transaction_commit();
1165 void memory_region_rom_device_set_romd(MemoryRegion
*mr
, bool romd_mode
)
1167 if (mr
->romd_mode
!= romd_mode
) {
1168 memory_region_transaction_begin();
1169 mr
->romd_mode
= romd_mode
;
1170 memory_region_update_pending
|= mr
->enabled
;
1171 memory_region_transaction_commit();
1175 void memory_region_reset_dirty(MemoryRegion
*mr
, hwaddr addr
,
1176 hwaddr size
, unsigned client
)
1178 assert(mr
->terminates
);
1179 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1180 mr
->ram_addr
+ addr
+ size
,
1184 void *memory_region_get_ram_ptr(MemoryRegion
*mr
)
1187 return memory_region_get_ram_ptr(mr
->alias
) + mr
->alias_offset
;
1190 assert(mr
->terminates
);
1192 return qemu_get_ram_ptr(mr
->ram_addr
& TARGET_PAGE_MASK
);
1195 static void memory_region_update_coalesced_range_as(MemoryRegion
*mr
, AddressSpace
*as
)
1198 CoalescedMemoryRange
*cmr
;
1200 MemoryRegionSection section
;
1202 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1204 section
= (MemoryRegionSection
) {
1205 .address_space
= as
,
1206 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1207 .size
= fr
->addr
.size
,
1210 MEMORY_LISTENER_CALL(coalesced_mmio_del
, Reverse
, §ion
,
1211 int128_get64(fr
->addr
.start
),
1212 int128_get64(fr
->addr
.size
));
1213 QTAILQ_FOREACH(cmr
, &mr
->coalesced
, link
) {
1214 tmp
= addrrange_shift(cmr
->addr
,
1215 int128_sub(fr
->addr
.start
,
1216 int128_make64(fr
->offset_in_region
)));
1217 if (!addrrange_intersects(tmp
, fr
->addr
)) {
1220 tmp
= addrrange_intersection(tmp
, fr
->addr
);
1221 MEMORY_LISTENER_CALL(coalesced_mmio_add
, Forward
, §ion
,
1222 int128_get64(tmp
.start
),
1223 int128_get64(tmp
.size
));
1229 static void memory_region_update_coalesced_range(MemoryRegion
*mr
)
1233 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1234 memory_region_update_coalesced_range_as(mr
, as
);
1238 void memory_region_set_coalescing(MemoryRegion
*mr
)
1240 memory_region_clear_coalescing(mr
);
1241 memory_region_add_coalescing(mr
, 0, int128_get64(mr
->size
));
1244 void memory_region_add_coalescing(MemoryRegion
*mr
,
1248 CoalescedMemoryRange
*cmr
= g_malloc(sizeof(*cmr
));
1250 cmr
->addr
= addrrange_make(int128_make64(offset
), int128_make64(size
));
1251 QTAILQ_INSERT_TAIL(&mr
->coalesced
, cmr
, link
);
1252 memory_region_update_coalesced_range(mr
);
1253 memory_region_set_flush_coalesced(mr
);
1256 void memory_region_clear_coalescing(MemoryRegion
*mr
)
1258 CoalescedMemoryRange
*cmr
;
1260 qemu_flush_coalesced_mmio_buffer();
1261 mr
->flush_coalesced_mmio
= false;
1263 while (!QTAILQ_EMPTY(&mr
->coalesced
)) {
1264 cmr
= QTAILQ_FIRST(&mr
->coalesced
);
1265 QTAILQ_REMOVE(&mr
->coalesced
, cmr
, link
);
1268 memory_region_update_coalesced_range(mr
);
1271 void memory_region_set_flush_coalesced(MemoryRegion
*mr
)
1273 mr
->flush_coalesced_mmio
= true;
1276 void memory_region_clear_flush_coalesced(MemoryRegion
*mr
)
1278 qemu_flush_coalesced_mmio_buffer();
1279 if (QTAILQ_EMPTY(&mr
->coalesced
)) {
1280 mr
->flush_coalesced_mmio
= false;
1284 void memory_region_add_eventfd(MemoryRegion
*mr
,
1291 MemoryRegionIoeventfd mrfd
= {
1292 .addr
.start
= int128_make64(addr
),
1293 .addr
.size
= int128_make64(size
),
1294 .match_data
= match_data
,
1300 adjust_endianness(mr
, &mrfd
.data
, size
);
1301 memory_region_transaction_begin();
1302 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1303 if (memory_region_ioeventfd_before(mrfd
, mr
->ioeventfds
[i
])) {
1308 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1309 sizeof(*mr
->ioeventfds
) * mr
->ioeventfd_nb
);
1310 memmove(&mr
->ioeventfds
[i
+1], &mr
->ioeventfds
[i
],
1311 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
-1 - i
));
1312 mr
->ioeventfds
[i
] = mrfd
;
1313 memory_region_update_pending
|= mr
->enabled
;
1314 memory_region_transaction_commit();
1317 void memory_region_del_eventfd(MemoryRegion
*mr
,
1324 MemoryRegionIoeventfd mrfd
= {
1325 .addr
.start
= int128_make64(addr
),
1326 .addr
.size
= int128_make64(size
),
1327 .match_data
= match_data
,
1333 adjust_endianness(mr
, &mrfd
.data
, size
);
1334 memory_region_transaction_begin();
1335 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1336 if (memory_region_ioeventfd_equal(mrfd
, mr
->ioeventfds
[i
])) {
1340 assert(i
!= mr
->ioeventfd_nb
);
1341 memmove(&mr
->ioeventfds
[i
], &mr
->ioeventfds
[i
+1],
1342 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
- (i
+1)));
1344 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1345 sizeof(*mr
->ioeventfds
)*mr
->ioeventfd_nb
+ 1);
1346 memory_region_update_pending
|= mr
->enabled
;
1347 memory_region_transaction_commit();
1350 static void memory_region_add_subregion_common(MemoryRegion
*mr
,
1352 MemoryRegion
*subregion
)
1354 MemoryRegion
*other
;
1356 memory_region_transaction_begin();
1358 assert(!subregion
->parent
);
1359 memory_region_ref(subregion
);
1360 subregion
->parent
= mr
;
1361 subregion
->addr
= offset
;
1362 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1363 if (subregion
->may_overlap
|| other
->may_overlap
) {
1366 if (int128_ge(int128_make64(offset
),
1367 int128_add(int128_make64(other
->addr
), other
->size
))
1368 || int128_le(int128_add(int128_make64(offset
), subregion
->size
),
1369 int128_make64(other
->addr
))) {
1373 printf("warning: subregion collision %llx/%llx (%s) "
1374 "vs %llx/%llx (%s)\n",
1375 (unsigned long long)offset
,
1376 (unsigned long long)int128_get64(subregion
->size
),
1378 (unsigned long long)other
->addr
,
1379 (unsigned long long)int128_get64(other
->size
),
1383 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1384 if (subregion
->priority
>= other
->priority
) {
1385 QTAILQ_INSERT_BEFORE(other
, subregion
, subregions_link
);
1389 QTAILQ_INSERT_TAIL(&mr
->subregions
, subregion
, subregions_link
);
1391 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1392 memory_region_transaction_commit();
1396 void memory_region_add_subregion(MemoryRegion
*mr
,
1398 MemoryRegion
*subregion
)
1400 subregion
->may_overlap
= false;
1401 subregion
->priority
= 0;
1402 memory_region_add_subregion_common(mr
, offset
, subregion
);
1405 void memory_region_add_subregion_overlap(MemoryRegion
*mr
,
1407 MemoryRegion
*subregion
,
1410 subregion
->may_overlap
= true;
1411 subregion
->priority
= priority
;
1412 memory_region_add_subregion_common(mr
, offset
, subregion
);
1415 void memory_region_del_subregion(MemoryRegion
*mr
,
1416 MemoryRegion
*subregion
)
1418 memory_region_transaction_begin();
1419 assert(subregion
->parent
== mr
);
1420 subregion
->parent
= NULL
;
1421 QTAILQ_REMOVE(&mr
->subregions
, subregion
, subregions_link
);
1422 memory_region_unref(subregion
);
1423 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1424 memory_region_transaction_commit();
1427 void memory_region_set_enabled(MemoryRegion
*mr
, bool enabled
)
1429 if (enabled
== mr
->enabled
) {
1432 memory_region_transaction_begin();
1433 mr
->enabled
= enabled
;
1434 memory_region_update_pending
= true;
1435 memory_region_transaction_commit();
1438 void memory_region_set_address(MemoryRegion
*mr
, hwaddr addr
)
1440 MemoryRegion
*parent
= mr
->parent
;
1441 unsigned priority
= mr
->priority
;
1442 bool may_overlap
= mr
->may_overlap
;
1444 if (addr
== mr
->addr
|| !parent
) {
1449 memory_region_transaction_begin();
1450 memory_region_ref(mr
);
1451 memory_region_del_subregion(parent
, mr
);
1453 memory_region_add_subregion_overlap(parent
, addr
, mr
, priority
);
1455 memory_region_add_subregion(parent
, addr
, mr
);
1457 memory_region_unref(mr
);
1458 memory_region_transaction_commit();
1461 void memory_region_set_alias_offset(MemoryRegion
*mr
, hwaddr offset
)
1465 if (offset
== mr
->alias_offset
) {
1469 memory_region_transaction_begin();
1470 mr
->alias_offset
= offset
;
1471 memory_region_update_pending
|= mr
->enabled
;
1472 memory_region_transaction_commit();
1475 ram_addr_t
memory_region_get_ram_addr(MemoryRegion
*mr
)
1477 return mr
->ram_addr
;
1480 static int cmp_flatrange_addr(const void *addr_
, const void *fr_
)
1482 const AddrRange
*addr
= addr_
;
1483 const FlatRange
*fr
= fr_
;
1485 if (int128_le(addrrange_end(*addr
), fr
->addr
.start
)) {
1487 } else if (int128_ge(addr
->start
, addrrange_end(fr
->addr
))) {
1493 static FlatRange
*address_space_lookup(AddressSpace
*as
, AddrRange addr
)
1495 return bsearch(&addr
, as
->current_map
->ranges
, as
->current_map
->nr
,
1496 sizeof(FlatRange
), cmp_flatrange_addr
);
1499 bool memory_region_present(MemoryRegion
*parent
, hwaddr addr
)
1501 MemoryRegion
*mr
= memory_region_find(parent
, addr
, 1).mr
;
1505 memory_region_unref(mr
);
1509 MemoryRegionSection
memory_region_find(MemoryRegion
*mr
,
1510 hwaddr addr
, uint64_t size
)
1512 MemoryRegionSection ret
= { .mr
= NULL
};
1519 for (root
= mr
; root
->parent
; ) {
1520 root
= root
->parent
;
1524 as
= memory_region_to_address_space(root
);
1525 range
= addrrange_make(int128_make64(addr
), int128_make64(size
));
1526 fr
= address_space_lookup(as
, range
);
1531 while (fr
> as
->current_map
->ranges
1532 && addrrange_intersects(fr
[-1].addr
, range
)) {
1537 ret
.address_space
= as
;
1538 range
= addrrange_intersection(range
, fr
->addr
);
1539 ret
.offset_within_region
= fr
->offset_in_region
;
1540 ret
.offset_within_region
+= int128_get64(int128_sub(range
.start
,
1542 ret
.size
= range
.size
;
1543 ret
.offset_within_address_space
= int128_get64(range
.start
);
1544 ret
.readonly
= fr
->readonly
;
1545 memory_region_ref(ret
.mr
);
1550 void address_space_sync_dirty_bitmap(AddressSpace
*as
)
1554 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1555 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1559 void memory_global_dirty_log_start(void)
1561 global_dirty_log
= true;
1562 MEMORY_LISTENER_CALL_GLOBAL(log_global_start
, Forward
);
1565 void memory_global_dirty_log_stop(void)
1567 global_dirty_log
= false;
1568 MEMORY_LISTENER_CALL_GLOBAL(log_global_stop
, Reverse
);
1571 static void listener_add_address_space(MemoryListener
*listener
,
1576 if (listener
->address_space_filter
1577 && listener
->address_space_filter
!= as
) {
1581 if (global_dirty_log
) {
1582 if (listener
->log_global_start
) {
1583 listener
->log_global_start(listener
);
1587 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1588 MemoryRegionSection section
= {
1590 .address_space
= as
,
1591 .offset_within_region
= fr
->offset_in_region
,
1592 .size
= fr
->addr
.size
,
1593 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1594 .readonly
= fr
->readonly
,
1596 if (listener
->region_add
) {
1597 listener
->region_add(listener
, §ion
);
1602 void memory_listener_register(MemoryListener
*listener
, AddressSpace
*filter
)
1604 MemoryListener
*other
= NULL
;
1607 listener
->address_space_filter
= filter
;
1608 if (QTAILQ_EMPTY(&memory_listeners
)
1609 || listener
->priority
>= QTAILQ_LAST(&memory_listeners
,
1610 memory_listeners
)->priority
) {
1611 QTAILQ_INSERT_TAIL(&memory_listeners
, listener
, link
);
1613 QTAILQ_FOREACH(other
, &memory_listeners
, link
) {
1614 if (listener
->priority
< other
->priority
) {
1618 QTAILQ_INSERT_BEFORE(other
, listener
, link
);
1621 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1622 listener_add_address_space(listener
, as
);
1626 void memory_listener_unregister(MemoryListener
*listener
)
1628 QTAILQ_REMOVE(&memory_listeners
, listener
, link
);
1631 void address_space_init(AddressSpace
*as
, MemoryRegion
*root
, const char *name
)
1633 memory_region_transaction_begin();
1635 as
->current_map
= g_new(FlatView
, 1);
1636 flatview_init(as
->current_map
);
1637 as
->ioeventfd_nb
= 0;
1638 as
->ioeventfds
= NULL
;
1639 QTAILQ_INSERT_TAIL(&address_spaces
, as
, address_spaces_link
);
1640 as
->name
= g_strdup(name
? name
: "anonymous");
1641 address_space_init_dispatch(as
);
1642 memory_region_update_pending
|= root
->enabled
;
1643 memory_region_transaction_commit();
1646 void address_space_destroy(AddressSpace
*as
)
1648 /* Flush out anything from MemoryListeners listening in on this */
1649 memory_region_transaction_begin();
1651 memory_region_transaction_commit();
1652 QTAILQ_REMOVE(&address_spaces
, as
, address_spaces_link
);
1653 address_space_destroy_dispatch(as
);
1654 flatview_destroy(as
->current_map
);
1656 g_free(as
->current_map
);
1657 g_free(as
->ioeventfds
);
1660 bool io_mem_read(MemoryRegion
*mr
, hwaddr addr
, uint64_t *pval
, unsigned size
)
1662 return memory_region_dispatch_read(mr
, addr
, pval
, size
);
1665 bool io_mem_write(MemoryRegion
*mr
, hwaddr addr
,
1666 uint64_t val
, unsigned size
)
1668 return memory_region_dispatch_write(mr
, addr
, val
, size
);
1671 typedef struct MemoryRegionList MemoryRegionList
;
1673 struct MemoryRegionList
{
1674 const MemoryRegion
*mr
;
1676 QTAILQ_ENTRY(MemoryRegionList
) queue
;
1679 typedef QTAILQ_HEAD(queue
, MemoryRegionList
) MemoryRegionListHead
;
1681 static void mtree_print_mr(fprintf_function mon_printf
, void *f
,
1682 const MemoryRegion
*mr
, unsigned int level
,
1684 MemoryRegionListHead
*alias_print_queue
)
1686 MemoryRegionList
*new_ml
, *ml
, *next_ml
;
1687 MemoryRegionListHead submr_print_queue
;
1688 const MemoryRegion
*submr
;
1691 if (!mr
|| !mr
->enabled
) {
1695 for (i
= 0; i
< level
; i
++) {
1700 MemoryRegionList
*ml
;
1703 /* check if the alias is already in the queue */
1704 QTAILQ_FOREACH(ml
, alias_print_queue
, queue
) {
1705 if (ml
->mr
== mr
->alias
&& !ml
->printed
) {
1711 ml
= g_new(MemoryRegionList
, 1);
1713 ml
->printed
= false;
1714 QTAILQ_INSERT_TAIL(alias_print_queue
, ml
, queue
);
1716 mon_printf(f
, TARGET_FMT_plx
"-" TARGET_FMT_plx
1717 " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx
1718 "-" TARGET_FMT_plx
"\n",
1721 + (hwaddr
)int128_get64(int128_sub(mr
->size
, int128_make64(1))),
1723 mr
->romd_mode
? 'R' : '-',
1724 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1730 + (hwaddr
)int128_get64(mr
->size
) - 1);
1733 TARGET_FMT_plx
"-" TARGET_FMT_plx
" (prio %d, %c%c): %s\n",
1736 + (hwaddr
)int128_get64(int128_sub(mr
->size
, int128_make64(1))),
1738 mr
->romd_mode
? 'R' : '-',
1739 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1744 QTAILQ_INIT(&submr_print_queue
);
1746 QTAILQ_FOREACH(submr
, &mr
->subregions
, subregions_link
) {
1747 new_ml
= g_new(MemoryRegionList
, 1);
1749 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1750 if (new_ml
->mr
->addr
< ml
->mr
->addr
||
1751 (new_ml
->mr
->addr
== ml
->mr
->addr
&&
1752 new_ml
->mr
->priority
> ml
->mr
->priority
)) {
1753 QTAILQ_INSERT_BEFORE(ml
, new_ml
, queue
);
1759 QTAILQ_INSERT_TAIL(&submr_print_queue
, new_ml
, queue
);
1763 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1764 mtree_print_mr(mon_printf
, f
, ml
->mr
, level
+ 1, base
+ mr
->addr
,
1768 QTAILQ_FOREACH_SAFE(ml
, &submr_print_queue
, queue
, next_ml
) {
1773 void mtree_info(fprintf_function mon_printf
, void *f
)
1775 MemoryRegionListHead ml_head
;
1776 MemoryRegionList
*ml
, *ml2
;
1779 QTAILQ_INIT(&ml_head
);
1781 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1782 mon_printf(f
, "%s\n", as
->name
);
1783 mtree_print_mr(mon_printf
, f
, as
->root
, 0, 0, &ml_head
);
1786 mon_printf(f
, "aliases\n");
1787 /* print aliased regions */
1788 QTAILQ_FOREACH(ml
, &ml_head
, queue
) {
1790 mon_printf(f
, "%s\n", ml
->mr
->name
);
1791 mtree_print_mr(mon_printf
, f
, ml
->mr
, 0, 0, &ml_head
);
1795 QTAILQ_FOREACH_SAFE(ml
, &ml_head
, queue
, ml2
) {