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 #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \
152 MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \
154 .address_space = (as), \
155 .offset_within_region = (fr)->offset_in_region, \
156 .size = (fr)->addr.size, \
157 .offset_within_address_space = int128_get64((fr)->addr.start), \
158 .readonly = (fr)->readonly, \
161 struct CoalescedMemoryRange
{
163 QTAILQ_ENTRY(CoalescedMemoryRange
) link
;
166 struct MemoryRegionIoeventfd
{
173 static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a
,
174 MemoryRegionIoeventfd b
)
176 if (int128_lt(a
.addr
.start
, b
.addr
.start
)) {
178 } else if (int128_gt(a
.addr
.start
, b
.addr
.start
)) {
180 } else if (int128_lt(a
.addr
.size
, b
.addr
.size
)) {
182 } else if (int128_gt(a
.addr
.size
, b
.addr
.size
)) {
184 } else if (a
.match_data
< b
.match_data
) {
186 } else if (a
.match_data
> b
.match_data
) {
188 } else if (a
.match_data
) {
189 if (a
.data
< b
.data
) {
191 } else if (a
.data
> b
.data
) {
197 } else if (a
.e
> b
.e
) {
203 static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a
,
204 MemoryRegionIoeventfd b
)
206 return !memory_region_ioeventfd_before(a
, b
)
207 && !memory_region_ioeventfd_before(b
, a
);
210 typedef struct FlatRange FlatRange
;
211 typedef struct FlatView FlatView
;
213 /* Range of memory in the global map. Addresses are absolute. */
216 hwaddr offset_in_region
;
218 uint8_t dirty_log_mask
;
223 /* Flattened global view of current active memory hierarchy. Kept in sorted
229 unsigned nr_allocated
;
232 typedef struct AddressSpaceOps AddressSpaceOps
;
234 #define FOR_EACH_FLAT_RANGE(var, view) \
235 for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
237 static bool flatrange_equal(FlatRange
*a
, FlatRange
*b
)
239 return a
->mr
== b
->mr
240 && addrrange_equal(a
->addr
, b
->addr
)
241 && a
->offset_in_region
== b
->offset_in_region
242 && a
->romd_mode
== b
->romd_mode
243 && a
->readonly
== b
->readonly
;
246 static void flatview_init(FlatView
*view
)
250 view
->nr_allocated
= 0;
253 /* Insert a range into a given position. Caller is responsible for maintaining
256 static void flatview_insert(FlatView
*view
, unsigned pos
, FlatRange
*range
)
258 if (view
->nr
== view
->nr_allocated
) {
259 view
->nr_allocated
= MAX(2 * view
->nr
, 10);
260 view
->ranges
= g_realloc(view
->ranges
,
261 view
->nr_allocated
* sizeof(*view
->ranges
));
263 memmove(view
->ranges
+ pos
+ 1, view
->ranges
+ pos
,
264 (view
->nr
- pos
) * sizeof(FlatRange
));
265 view
->ranges
[pos
] = *range
;
269 static void flatview_destroy(FlatView
*view
)
271 g_free(view
->ranges
);
274 static bool can_merge(FlatRange
*r1
, FlatRange
*r2
)
276 return int128_eq(addrrange_end(r1
->addr
), r2
->addr
.start
)
278 && int128_eq(int128_add(int128_make64(r1
->offset_in_region
),
280 int128_make64(r2
->offset_in_region
))
281 && r1
->dirty_log_mask
== r2
->dirty_log_mask
282 && r1
->romd_mode
== r2
->romd_mode
283 && r1
->readonly
== r2
->readonly
;
286 /* Attempt to simplify a view by merging adjacent ranges */
287 static void flatview_simplify(FlatView
*view
)
292 while (i
< view
->nr
) {
295 && can_merge(&view
->ranges
[j
-1], &view
->ranges
[j
])) {
296 int128_addto(&view
->ranges
[i
].addr
.size
, view
->ranges
[j
].addr
.size
);
300 memmove(&view
->ranges
[i
], &view
->ranges
[j
],
301 (view
->nr
- j
) * sizeof(view
->ranges
[j
]));
306 static void memory_region_oldmmio_read_accessor(void *opaque
,
313 MemoryRegion
*mr
= opaque
;
316 tmp
= mr
->ops
->old_mmio
.read
[ctz32(size
)](mr
->opaque
, addr
);
317 *value
|= (tmp
& mask
) << shift
;
320 static void memory_region_read_accessor(void *opaque
,
327 MemoryRegion
*mr
= opaque
;
330 if (mr
->flush_coalesced_mmio
) {
331 qemu_flush_coalesced_mmio_buffer();
333 tmp
= mr
->ops
->read(mr
->opaque
, addr
, size
);
334 *value
|= (tmp
& mask
) << shift
;
337 static void memory_region_oldmmio_write_accessor(void *opaque
,
344 MemoryRegion
*mr
= opaque
;
347 tmp
= (*value
>> shift
) & mask
;
348 mr
->ops
->old_mmio
.write
[ctz32(size
)](mr
->opaque
, addr
, tmp
);
351 static void memory_region_write_accessor(void *opaque
,
358 MemoryRegion
*mr
= opaque
;
361 if (mr
->flush_coalesced_mmio
) {
362 qemu_flush_coalesced_mmio_buffer();
364 tmp
= (*value
>> shift
) & mask
;
365 mr
->ops
->write(mr
->opaque
, addr
, tmp
, size
);
368 static void access_with_adjusted_size(hwaddr addr
,
371 unsigned access_size_min
,
372 unsigned access_size_max
,
373 void (*access
)(void *opaque
,
381 uint64_t access_mask
;
382 unsigned access_size
;
385 if (!access_size_min
) {
388 if (!access_size_max
) {
392 /* FIXME: support unaligned access? */
393 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
394 access_mask
= -1ULL >> (64 - access_size
* 8);
395 for (i
= 0; i
< size
; i
+= access_size
) {
396 #ifdef TARGET_WORDS_BIGENDIAN
397 access(opaque
, addr
+ i
, value
, access_size
,
398 (size
- access_size
- i
) * 8, access_mask
);
400 access(opaque
, addr
+ i
, value
, access_size
, i
* 8, access_mask
);
405 static AddressSpace
*memory_region_to_address_space(MemoryRegion
*mr
)
412 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
413 if (mr
== as
->root
) {
420 /* Render a memory region into the global view. Ranges in @view obscure
423 static void render_memory_region(FlatView
*view
,
429 MemoryRegion
*subregion
;
431 hwaddr offset_in_region
;
441 int128_addto(&base
, int128_make64(mr
->addr
));
442 readonly
|= mr
->readonly
;
444 tmp
= addrrange_make(base
, mr
->size
);
446 if (!addrrange_intersects(tmp
, clip
)) {
450 clip
= addrrange_intersection(tmp
, clip
);
453 int128_subfrom(&base
, int128_make64(mr
->alias
->addr
));
454 int128_subfrom(&base
, int128_make64(mr
->alias_offset
));
455 render_memory_region(view
, mr
->alias
, base
, clip
, readonly
);
459 /* Render subregions in priority order. */
460 QTAILQ_FOREACH(subregion
, &mr
->subregions
, subregions_link
) {
461 render_memory_region(view
, subregion
, base
, clip
, readonly
);
464 if (!mr
->terminates
) {
468 offset_in_region
= int128_get64(int128_sub(clip
.start
, base
));
473 fr
.dirty_log_mask
= mr
->dirty_log_mask
;
474 fr
.romd_mode
= mr
->romd_mode
;
475 fr
.readonly
= readonly
;
477 /* Render the region itself into any gaps left by the current view. */
478 for (i
= 0; i
< view
->nr
&& int128_nz(remain
); ++i
) {
479 if (int128_ge(base
, addrrange_end(view
->ranges
[i
].addr
))) {
482 if (int128_lt(base
, view
->ranges
[i
].addr
.start
)) {
483 now
= int128_min(remain
,
484 int128_sub(view
->ranges
[i
].addr
.start
, base
));
485 fr
.offset_in_region
= offset_in_region
;
486 fr
.addr
= addrrange_make(base
, now
);
487 flatview_insert(view
, i
, &fr
);
489 int128_addto(&base
, now
);
490 offset_in_region
+= int128_get64(now
);
491 int128_subfrom(&remain
, now
);
493 now
= int128_sub(int128_min(int128_add(base
, remain
),
494 addrrange_end(view
->ranges
[i
].addr
)),
496 int128_addto(&base
, now
);
497 offset_in_region
+= int128_get64(now
);
498 int128_subfrom(&remain
, now
);
500 if (int128_nz(remain
)) {
501 fr
.offset_in_region
= offset_in_region
;
502 fr
.addr
= addrrange_make(base
, remain
);
503 flatview_insert(view
, i
, &fr
);
507 /* Render a memory topology into a list of disjoint absolute ranges. */
508 static FlatView
generate_memory_topology(MemoryRegion
*mr
)
512 flatview_init(&view
);
515 render_memory_region(&view
, mr
, int128_zero(),
516 addrrange_make(int128_zero(), int128_2_64()), false);
518 flatview_simplify(&view
);
523 static void address_space_add_del_ioeventfds(AddressSpace
*as
,
524 MemoryRegionIoeventfd
*fds_new
,
526 MemoryRegionIoeventfd
*fds_old
,
530 MemoryRegionIoeventfd
*fd
;
531 MemoryRegionSection section
;
533 /* Generate a symmetric difference of the old and new fd sets, adding
534 * and deleting as necessary.
538 while (iold
< fds_old_nb
|| inew
< fds_new_nb
) {
539 if (iold
< fds_old_nb
540 && (inew
== fds_new_nb
541 || memory_region_ioeventfd_before(fds_old
[iold
],
544 section
= (MemoryRegionSection
) {
546 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
547 .size
= fd
->addr
.size
,
549 MEMORY_LISTENER_CALL(eventfd_del
, Forward
, §ion
,
550 fd
->match_data
, fd
->data
, fd
->e
);
552 } else if (inew
< fds_new_nb
553 && (iold
== fds_old_nb
554 || memory_region_ioeventfd_before(fds_new
[inew
],
557 section
= (MemoryRegionSection
) {
559 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
560 .size
= fd
->addr
.size
,
562 MEMORY_LISTENER_CALL(eventfd_add
, Reverse
, §ion
,
563 fd
->match_data
, fd
->data
, fd
->e
);
572 static void address_space_update_ioeventfds(AddressSpace
*as
)
575 unsigned ioeventfd_nb
= 0;
576 MemoryRegionIoeventfd
*ioeventfds
= NULL
;
580 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
581 for (i
= 0; i
< fr
->mr
->ioeventfd_nb
; ++i
) {
582 tmp
= addrrange_shift(fr
->mr
->ioeventfds
[i
].addr
,
583 int128_sub(fr
->addr
.start
,
584 int128_make64(fr
->offset_in_region
)));
585 if (addrrange_intersects(fr
->addr
, tmp
)) {
587 ioeventfds
= g_realloc(ioeventfds
,
588 ioeventfd_nb
* sizeof(*ioeventfds
));
589 ioeventfds
[ioeventfd_nb
-1] = fr
->mr
->ioeventfds
[i
];
590 ioeventfds
[ioeventfd_nb
-1].addr
= tmp
;
595 address_space_add_del_ioeventfds(as
, ioeventfds
, ioeventfd_nb
,
596 as
->ioeventfds
, as
->ioeventfd_nb
);
598 g_free(as
->ioeventfds
);
599 as
->ioeventfds
= ioeventfds
;
600 as
->ioeventfd_nb
= ioeventfd_nb
;
603 static void address_space_update_topology_pass(AddressSpace
*as
,
609 FlatRange
*frold
, *frnew
;
611 /* Generate a symmetric difference of the old and new memory maps.
612 * Kill ranges in the old map, and instantiate ranges in the new map.
615 while (iold
< old_view
.nr
|| inew
< new_view
.nr
) {
616 if (iold
< old_view
.nr
) {
617 frold
= &old_view
.ranges
[iold
];
621 if (inew
< new_view
.nr
) {
622 frnew
= &new_view
.ranges
[inew
];
629 || int128_lt(frold
->addr
.start
, frnew
->addr
.start
)
630 || (int128_eq(frold
->addr
.start
, frnew
->addr
.start
)
631 && !flatrange_equal(frold
, frnew
)))) {
632 /* In old but not in new, or in both but attributes changed. */
635 MEMORY_LISTENER_UPDATE_REGION(frold
, as
, Reverse
, region_del
);
639 } else if (frold
&& frnew
&& flatrange_equal(frold
, frnew
)) {
640 /* In both and unchanged (except logging may have changed) */
643 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_nop
);
644 if (frold
->dirty_log_mask
&& !frnew
->dirty_log_mask
) {
645 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Reverse
, log_stop
);
646 } else if (frnew
->dirty_log_mask
&& !frold
->dirty_log_mask
) {
647 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, log_start
);
657 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_add
);
666 static void address_space_update_topology(AddressSpace
*as
)
668 FlatView old_view
= *as
->current_map
;
669 FlatView new_view
= generate_memory_topology(as
->root
);
671 address_space_update_topology_pass(as
, old_view
, new_view
, false);
672 address_space_update_topology_pass(as
, old_view
, new_view
, true);
674 *as
->current_map
= new_view
;
675 flatview_destroy(&old_view
);
676 address_space_update_ioeventfds(as
);
679 void memory_region_transaction_begin(void)
681 qemu_flush_coalesced_mmio_buffer();
682 ++memory_region_transaction_depth
;
685 void memory_region_transaction_commit(void)
689 assert(memory_region_transaction_depth
);
690 --memory_region_transaction_depth
;
691 if (!memory_region_transaction_depth
&& memory_region_update_pending
) {
692 memory_region_update_pending
= false;
693 MEMORY_LISTENER_CALL_GLOBAL(begin
, Forward
);
695 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
696 address_space_update_topology(as
);
699 MEMORY_LISTENER_CALL_GLOBAL(commit
, Forward
);
703 static void memory_region_destructor_none(MemoryRegion
*mr
)
707 static void memory_region_destructor_ram(MemoryRegion
*mr
)
709 qemu_ram_free(mr
->ram_addr
);
712 static void memory_region_destructor_ram_from_ptr(MemoryRegion
*mr
)
714 qemu_ram_free_from_ptr(mr
->ram_addr
);
717 static void memory_region_destructor_rom_device(MemoryRegion
*mr
)
719 qemu_ram_free(mr
->ram_addr
& TARGET_PAGE_MASK
);
722 static bool memory_region_wrong_endianness(MemoryRegion
*mr
)
724 #ifdef TARGET_WORDS_BIGENDIAN
725 return mr
->ops
->endianness
== DEVICE_LITTLE_ENDIAN
;
727 return mr
->ops
->endianness
== DEVICE_BIG_ENDIAN
;
731 void memory_region_init(MemoryRegion
*mr
,
736 mr
->ops
= &unassigned_mem_ops
;
739 mr
->iommu_ops
= NULL
;
742 mr
->size
= int128_make64(size
);
743 if (size
== UINT64_MAX
) {
744 mr
->size
= int128_2_64();
749 mr
->terminates
= false;
751 mr
->romd_mode
= true;
752 mr
->readonly
= false;
753 mr
->rom_device
= false;
754 mr
->destructor
= memory_region_destructor_none
;
756 mr
->may_overlap
= false;
758 QTAILQ_INIT(&mr
->subregions
);
759 memset(&mr
->subregions_link
, 0, sizeof mr
->subregions_link
);
760 QTAILQ_INIT(&mr
->coalesced
);
761 mr
->name
= g_strdup(name
);
762 mr
->dirty_log_mask
= 0;
763 mr
->ioeventfd_nb
= 0;
764 mr
->ioeventfds
= NULL
;
765 mr
->flush_coalesced_mmio
= false;
768 static uint64_t unassigned_mem_read(void *opaque
, hwaddr addr
,
771 #ifdef DEBUG_UNASSIGNED
772 printf("Unassigned mem read " TARGET_FMT_plx
"\n", addr
);
774 if (cpu_single_env
!= NULL
) {
775 cpu_unassigned_access(ENV_GET_CPU(cpu_single_env
),
776 addr
, false, false, 0, size
);
781 static void unassigned_mem_write(void *opaque
, hwaddr addr
,
782 uint64_t val
, unsigned size
)
784 #ifdef DEBUG_UNASSIGNED
785 printf("Unassigned mem write " TARGET_FMT_plx
" = 0x%"PRIx64
"\n", addr
, val
);
787 if (cpu_single_env
!= NULL
) {
788 cpu_unassigned_access(ENV_GET_CPU(cpu_single_env
),
789 addr
, true, false, 0, size
);
793 static bool unassigned_mem_accepts(void *opaque
, hwaddr addr
,
794 unsigned size
, bool is_write
)
799 const MemoryRegionOps unassigned_mem_ops
= {
800 .valid
.accepts
= unassigned_mem_accepts
,
801 .endianness
= DEVICE_NATIVE_ENDIAN
,
804 bool memory_region_access_valid(MemoryRegion
*mr
,
809 int access_size_min
, access_size_max
;
812 if (!mr
->ops
->valid
.unaligned
&& (addr
& (size
- 1))) {
816 if (!mr
->ops
->valid
.accepts
) {
820 access_size_min
= mr
->ops
->valid
.min_access_size
;
821 if (!mr
->ops
->valid
.min_access_size
) {
825 access_size_max
= mr
->ops
->valid
.max_access_size
;
826 if (!mr
->ops
->valid
.max_access_size
) {
830 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
831 for (i
= 0; i
< size
; i
+= access_size
) {
832 if (!mr
->ops
->valid
.accepts(mr
->opaque
, addr
+ i
, access_size
,
841 static uint64_t memory_region_dispatch_read1(MemoryRegion
*mr
,
848 access_with_adjusted_size(addr
, &data
, size
,
849 mr
->ops
->impl
.min_access_size
,
850 mr
->ops
->impl
.max_access_size
,
851 memory_region_read_accessor
, mr
);
853 access_with_adjusted_size(addr
, &data
, size
, 1, 4,
854 memory_region_oldmmio_read_accessor
, mr
);
860 static void adjust_endianness(MemoryRegion
*mr
, uint64_t *data
, unsigned size
)
862 if (memory_region_wrong_endianness(mr
)) {
867 *data
= bswap16(*data
);
870 *data
= bswap32(*data
);
873 *data
= bswap64(*data
);
881 static bool memory_region_dispatch_read(MemoryRegion
*mr
,
886 if (!memory_region_access_valid(mr
, addr
, size
, false)) {
887 *pval
= unassigned_mem_read(mr
, addr
, size
);
891 *pval
= memory_region_dispatch_read1(mr
, addr
, size
);
892 adjust_endianness(mr
, pval
, size
);
896 static bool memory_region_dispatch_write(MemoryRegion
*mr
,
901 if (!memory_region_access_valid(mr
, addr
, size
, true)) {
902 unassigned_mem_write(mr
, addr
, data
, size
);
906 adjust_endianness(mr
, &data
, size
);
908 if (mr
->ops
->write
) {
909 access_with_adjusted_size(addr
, &data
, size
,
910 mr
->ops
->impl
.min_access_size
,
911 mr
->ops
->impl
.max_access_size
,
912 memory_region_write_accessor
, mr
);
914 access_with_adjusted_size(addr
, &data
, size
, 1, 4,
915 memory_region_oldmmio_write_accessor
, mr
);
920 void memory_region_init_io(MemoryRegion
*mr
,
922 const MemoryRegionOps
*ops
,
927 memory_region_init(mr
, owner
, name
, size
);
930 mr
->terminates
= true;
931 mr
->ram_addr
= ~(ram_addr_t
)0;
934 void memory_region_init_ram(MemoryRegion
*mr
,
939 memory_region_init(mr
, owner
, name
, size
);
941 mr
->terminates
= true;
942 mr
->destructor
= memory_region_destructor_ram
;
943 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
946 void memory_region_init_ram_ptr(MemoryRegion
*mr
,
952 memory_region_init(mr
, owner
, name
, size
);
954 mr
->terminates
= true;
955 mr
->destructor
= memory_region_destructor_ram_from_ptr
;
956 mr
->ram_addr
= qemu_ram_alloc_from_ptr(size
, ptr
, mr
);
959 void memory_region_init_alias(MemoryRegion
*mr
,
966 memory_region_init(mr
, owner
, name
, size
);
968 mr
->alias_offset
= offset
;
971 void memory_region_init_rom_device(MemoryRegion
*mr
,
973 const MemoryRegionOps
*ops
,
978 memory_region_init(mr
, owner
, name
, size
);
981 mr
->terminates
= true;
982 mr
->rom_device
= true;
983 mr
->destructor
= memory_region_destructor_rom_device
;
984 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
987 void memory_region_init_iommu(MemoryRegion
*mr
,
989 const MemoryRegionIOMMUOps
*ops
,
993 memory_region_init(mr
, owner
, name
, size
);
995 mr
->terminates
= true; /* then re-forwards */
996 notifier_list_init(&mr
->iommu_notify
);
999 void memory_region_init_reservation(MemoryRegion
*mr
,
1004 memory_region_init_io(mr
, owner
, &unassigned_mem_ops
, mr
, name
, size
);
1007 void memory_region_destroy(MemoryRegion
*mr
)
1009 assert(QTAILQ_EMPTY(&mr
->subregions
));
1010 assert(memory_region_transaction_depth
== 0);
1012 memory_region_clear_coalescing(mr
);
1013 g_free((char *)mr
->name
);
1014 g_free(mr
->ioeventfds
);
1017 Object
*memory_region_owner(MemoryRegion
*mr
)
1022 uint64_t memory_region_size(MemoryRegion
*mr
)
1024 if (int128_eq(mr
->size
, int128_2_64())) {
1027 return int128_get64(mr
->size
);
1030 const char *memory_region_name(MemoryRegion
*mr
)
1035 bool memory_region_is_ram(MemoryRegion
*mr
)
1040 bool memory_region_is_logging(MemoryRegion
*mr
)
1042 return mr
->dirty_log_mask
;
1045 bool memory_region_is_rom(MemoryRegion
*mr
)
1047 return mr
->ram
&& mr
->readonly
;
1050 bool memory_region_is_iommu(MemoryRegion
*mr
)
1052 return mr
->iommu_ops
;
1055 void memory_region_register_iommu_notifier(MemoryRegion
*mr
, Notifier
*n
)
1057 notifier_list_add(&mr
->iommu_notify
, n
);
1060 void memory_region_unregister_iommu_notifier(Notifier
*n
)
1065 void memory_region_notify_iommu(MemoryRegion
*mr
,
1066 IOMMUTLBEntry entry
)
1068 assert(memory_region_is_iommu(mr
));
1069 notifier_list_notify(&mr
->iommu_notify
, &entry
);
1072 void memory_region_set_log(MemoryRegion
*mr
, bool log
, unsigned client
)
1074 uint8_t mask
= 1 << client
;
1076 memory_region_transaction_begin();
1077 mr
->dirty_log_mask
= (mr
->dirty_log_mask
& ~mask
) | (log
* mask
);
1078 memory_region_update_pending
|= mr
->enabled
;
1079 memory_region_transaction_commit();
1082 bool memory_region_get_dirty(MemoryRegion
*mr
, hwaddr addr
,
1083 hwaddr size
, unsigned client
)
1085 assert(mr
->terminates
);
1086 return cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1090 void memory_region_set_dirty(MemoryRegion
*mr
, hwaddr addr
,
1093 assert(mr
->terminates
);
1094 return cpu_physical_memory_set_dirty_range(mr
->ram_addr
+ addr
, size
, -1);
1097 bool memory_region_test_and_clear_dirty(MemoryRegion
*mr
, hwaddr addr
,
1098 hwaddr size
, unsigned client
)
1101 assert(mr
->terminates
);
1102 ret
= cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1105 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1106 mr
->ram_addr
+ addr
+ size
,
1113 void memory_region_sync_dirty_bitmap(MemoryRegion
*mr
)
1118 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1119 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1121 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1127 void memory_region_set_readonly(MemoryRegion
*mr
, bool readonly
)
1129 if (mr
->readonly
!= readonly
) {
1130 memory_region_transaction_begin();
1131 mr
->readonly
= readonly
;
1132 memory_region_update_pending
|= mr
->enabled
;
1133 memory_region_transaction_commit();
1137 void memory_region_rom_device_set_romd(MemoryRegion
*mr
, bool romd_mode
)
1139 if (mr
->romd_mode
!= romd_mode
) {
1140 memory_region_transaction_begin();
1141 mr
->romd_mode
= romd_mode
;
1142 memory_region_update_pending
|= mr
->enabled
;
1143 memory_region_transaction_commit();
1147 void memory_region_reset_dirty(MemoryRegion
*mr
, hwaddr addr
,
1148 hwaddr size
, unsigned client
)
1150 assert(mr
->terminates
);
1151 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1152 mr
->ram_addr
+ addr
+ size
,
1156 void *memory_region_get_ram_ptr(MemoryRegion
*mr
)
1159 return memory_region_get_ram_ptr(mr
->alias
) + mr
->alias_offset
;
1162 assert(mr
->terminates
);
1164 return qemu_get_ram_ptr(mr
->ram_addr
& TARGET_PAGE_MASK
);
1167 static void memory_region_update_coalesced_range_as(MemoryRegion
*mr
, AddressSpace
*as
)
1170 CoalescedMemoryRange
*cmr
;
1172 MemoryRegionSection section
;
1174 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1176 section
= (MemoryRegionSection
) {
1177 .address_space
= as
,
1178 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1179 .size
= fr
->addr
.size
,
1182 MEMORY_LISTENER_CALL(coalesced_mmio_del
, Reverse
, §ion
,
1183 int128_get64(fr
->addr
.start
),
1184 int128_get64(fr
->addr
.size
));
1185 QTAILQ_FOREACH(cmr
, &mr
->coalesced
, link
) {
1186 tmp
= addrrange_shift(cmr
->addr
,
1187 int128_sub(fr
->addr
.start
,
1188 int128_make64(fr
->offset_in_region
)));
1189 if (!addrrange_intersects(tmp
, fr
->addr
)) {
1192 tmp
= addrrange_intersection(tmp
, fr
->addr
);
1193 MEMORY_LISTENER_CALL(coalesced_mmio_add
, Forward
, §ion
,
1194 int128_get64(tmp
.start
),
1195 int128_get64(tmp
.size
));
1201 static void memory_region_update_coalesced_range(MemoryRegion
*mr
)
1205 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1206 memory_region_update_coalesced_range_as(mr
, as
);
1210 void memory_region_set_coalescing(MemoryRegion
*mr
)
1212 memory_region_clear_coalescing(mr
);
1213 memory_region_add_coalescing(mr
, 0, int128_get64(mr
->size
));
1216 void memory_region_add_coalescing(MemoryRegion
*mr
,
1220 CoalescedMemoryRange
*cmr
= g_malloc(sizeof(*cmr
));
1222 cmr
->addr
= addrrange_make(int128_make64(offset
), int128_make64(size
));
1223 QTAILQ_INSERT_TAIL(&mr
->coalesced
, cmr
, link
);
1224 memory_region_update_coalesced_range(mr
);
1225 memory_region_set_flush_coalesced(mr
);
1228 void memory_region_clear_coalescing(MemoryRegion
*mr
)
1230 CoalescedMemoryRange
*cmr
;
1232 qemu_flush_coalesced_mmio_buffer();
1233 mr
->flush_coalesced_mmio
= false;
1235 while (!QTAILQ_EMPTY(&mr
->coalesced
)) {
1236 cmr
= QTAILQ_FIRST(&mr
->coalesced
);
1237 QTAILQ_REMOVE(&mr
->coalesced
, cmr
, link
);
1240 memory_region_update_coalesced_range(mr
);
1243 void memory_region_set_flush_coalesced(MemoryRegion
*mr
)
1245 mr
->flush_coalesced_mmio
= true;
1248 void memory_region_clear_flush_coalesced(MemoryRegion
*mr
)
1250 qemu_flush_coalesced_mmio_buffer();
1251 if (QTAILQ_EMPTY(&mr
->coalesced
)) {
1252 mr
->flush_coalesced_mmio
= false;
1256 void memory_region_add_eventfd(MemoryRegion
*mr
,
1263 MemoryRegionIoeventfd mrfd
= {
1264 .addr
.start
= int128_make64(addr
),
1265 .addr
.size
= int128_make64(size
),
1266 .match_data
= match_data
,
1272 adjust_endianness(mr
, &mrfd
.data
, size
);
1273 memory_region_transaction_begin();
1274 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1275 if (memory_region_ioeventfd_before(mrfd
, mr
->ioeventfds
[i
])) {
1280 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1281 sizeof(*mr
->ioeventfds
) * mr
->ioeventfd_nb
);
1282 memmove(&mr
->ioeventfds
[i
+1], &mr
->ioeventfds
[i
],
1283 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
-1 - i
));
1284 mr
->ioeventfds
[i
] = mrfd
;
1285 memory_region_update_pending
|= mr
->enabled
;
1286 memory_region_transaction_commit();
1289 void memory_region_del_eventfd(MemoryRegion
*mr
,
1296 MemoryRegionIoeventfd mrfd
= {
1297 .addr
.start
= int128_make64(addr
),
1298 .addr
.size
= int128_make64(size
),
1299 .match_data
= match_data
,
1305 adjust_endianness(mr
, &mrfd
.data
, size
);
1306 memory_region_transaction_begin();
1307 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1308 if (memory_region_ioeventfd_equal(mrfd
, mr
->ioeventfds
[i
])) {
1312 assert(i
!= mr
->ioeventfd_nb
);
1313 memmove(&mr
->ioeventfds
[i
], &mr
->ioeventfds
[i
+1],
1314 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
- (i
+1)));
1316 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1317 sizeof(*mr
->ioeventfds
)*mr
->ioeventfd_nb
+ 1);
1318 memory_region_update_pending
|= mr
->enabled
;
1319 memory_region_transaction_commit();
1322 static void memory_region_add_subregion_common(MemoryRegion
*mr
,
1324 MemoryRegion
*subregion
)
1326 MemoryRegion
*other
;
1328 memory_region_transaction_begin();
1330 assert(!subregion
->parent
);
1331 subregion
->parent
= mr
;
1332 subregion
->addr
= offset
;
1333 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1334 if (subregion
->may_overlap
|| other
->may_overlap
) {
1337 if (int128_ge(int128_make64(offset
),
1338 int128_add(int128_make64(other
->addr
), other
->size
))
1339 || int128_le(int128_add(int128_make64(offset
), subregion
->size
),
1340 int128_make64(other
->addr
))) {
1344 printf("warning: subregion collision %llx/%llx (%s) "
1345 "vs %llx/%llx (%s)\n",
1346 (unsigned long long)offset
,
1347 (unsigned long long)int128_get64(subregion
->size
),
1349 (unsigned long long)other
->addr
,
1350 (unsigned long long)int128_get64(other
->size
),
1354 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1355 if (subregion
->priority
>= other
->priority
) {
1356 QTAILQ_INSERT_BEFORE(other
, subregion
, subregions_link
);
1360 QTAILQ_INSERT_TAIL(&mr
->subregions
, subregion
, subregions_link
);
1362 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1363 memory_region_transaction_commit();
1367 void memory_region_add_subregion(MemoryRegion
*mr
,
1369 MemoryRegion
*subregion
)
1371 subregion
->may_overlap
= false;
1372 subregion
->priority
= 0;
1373 memory_region_add_subregion_common(mr
, offset
, subregion
);
1376 void memory_region_add_subregion_overlap(MemoryRegion
*mr
,
1378 MemoryRegion
*subregion
,
1381 subregion
->may_overlap
= true;
1382 subregion
->priority
= priority
;
1383 memory_region_add_subregion_common(mr
, offset
, subregion
);
1386 void memory_region_del_subregion(MemoryRegion
*mr
,
1387 MemoryRegion
*subregion
)
1389 memory_region_transaction_begin();
1390 assert(subregion
->parent
== mr
);
1391 subregion
->parent
= NULL
;
1392 QTAILQ_REMOVE(&mr
->subregions
, subregion
, subregions_link
);
1393 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1394 memory_region_transaction_commit();
1397 void memory_region_set_enabled(MemoryRegion
*mr
, bool enabled
)
1399 if (enabled
== mr
->enabled
) {
1402 memory_region_transaction_begin();
1403 mr
->enabled
= enabled
;
1404 memory_region_update_pending
= true;
1405 memory_region_transaction_commit();
1408 void memory_region_set_address(MemoryRegion
*mr
, hwaddr addr
)
1410 MemoryRegion
*parent
= mr
->parent
;
1411 unsigned priority
= mr
->priority
;
1412 bool may_overlap
= mr
->may_overlap
;
1414 if (addr
== mr
->addr
|| !parent
) {
1419 memory_region_transaction_begin();
1420 memory_region_del_subregion(parent
, mr
);
1422 memory_region_add_subregion_overlap(parent
, addr
, mr
, priority
);
1424 memory_region_add_subregion(parent
, addr
, mr
);
1426 memory_region_transaction_commit();
1429 void memory_region_set_alias_offset(MemoryRegion
*mr
, hwaddr offset
)
1433 if (offset
== mr
->alias_offset
) {
1437 memory_region_transaction_begin();
1438 mr
->alias_offset
= offset
;
1439 memory_region_update_pending
|= mr
->enabled
;
1440 memory_region_transaction_commit();
1443 ram_addr_t
memory_region_get_ram_addr(MemoryRegion
*mr
)
1445 return mr
->ram_addr
;
1448 static int cmp_flatrange_addr(const void *addr_
, const void *fr_
)
1450 const AddrRange
*addr
= addr_
;
1451 const FlatRange
*fr
= fr_
;
1453 if (int128_le(addrrange_end(*addr
), fr
->addr
.start
)) {
1455 } else if (int128_ge(addr
->start
, addrrange_end(fr
->addr
))) {
1461 static FlatRange
*address_space_lookup(AddressSpace
*as
, AddrRange addr
)
1463 return bsearch(&addr
, as
->current_map
->ranges
, as
->current_map
->nr
,
1464 sizeof(FlatRange
), cmp_flatrange_addr
);
1467 MemoryRegionSection
memory_region_find(MemoryRegion
*mr
,
1468 hwaddr addr
, uint64_t size
)
1470 MemoryRegionSection ret
= { .mr
= NULL
};
1477 for (root
= mr
; root
->parent
; ) {
1478 root
= root
->parent
;
1482 as
= memory_region_to_address_space(root
);
1483 range
= addrrange_make(int128_make64(addr
), int128_make64(size
));
1484 fr
= address_space_lookup(as
, range
);
1489 while (fr
> as
->current_map
->ranges
1490 && addrrange_intersects(fr
[-1].addr
, range
)) {
1495 ret
.address_space
= as
;
1496 range
= addrrange_intersection(range
, fr
->addr
);
1497 ret
.offset_within_region
= fr
->offset_in_region
;
1498 ret
.offset_within_region
+= int128_get64(int128_sub(range
.start
,
1500 ret
.size
= range
.size
;
1501 ret
.offset_within_address_space
= int128_get64(range
.start
);
1502 ret
.readonly
= fr
->readonly
;
1506 void address_space_sync_dirty_bitmap(AddressSpace
*as
)
1510 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1511 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1515 void memory_global_dirty_log_start(void)
1517 global_dirty_log
= true;
1518 MEMORY_LISTENER_CALL_GLOBAL(log_global_start
, Forward
);
1521 void memory_global_dirty_log_stop(void)
1523 global_dirty_log
= false;
1524 MEMORY_LISTENER_CALL_GLOBAL(log_global_stop
, Reverse
);
1527 static void listener_add_address_space(MemoryListener
*listener
,
1532 if (listener
->address_space_filter
1533 && listener
->address_space_filter
!= as
) {
1537 if (global_dirty_log
) {
1538 if (listener
->log_global_start
) {
1539 listener
->log_global_start(listener
);
1543 FOR_EACH_FLAT_RANGE(fr
, as
->current_map
) {
1544 MemoryRegionSection section
= {
1546 .address_space
= as
,
1547 .offset_within_region
= fr
->offset_in_region
,
1548 .size
= fr
->addr
.size
,
1549 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1550 .readonly
= fr
->readonly
,
1552 if (listener
->region_add
) {
1553 listener
->region_add(listener
, §ion
);
1558 void memory_listener_register(MemoryListener
*listener
, AddressSpace
*filter
)
1560 MemoryListener
*other
= NULL
;
1563 listener
->address_space_filter
= filter
;
1564 if (QTAILQ_EMPTY(&memory_listeners
)
1565 || listener
->priority
>= QTAILQ_LAST(&memory_listeners
,
1566 memory_listeners
)->priority
) {
1567 QTAILQ_INSERT_TAIL(&memory_listeners
, listener
, link
);
1569 QTAILQ_FOREACH(other
, &memory_listeners
, link
) {
1570 if (listener
->priority
< other
->priority
) {
1574 QTAILQ_INSERT_BEFORE(other
, listener
, link
);
1577 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1578 listener_add_address_space(listener
, as
);
1582 void memory_listener_unregister(MemoryListener
*listener
)
1584 QTAILQ_REMOVE(&memory_listeners
, listener
, link
);
1587 void address_space_init(AddressSpace
*as
, MemoryRegion
*root
, const char *name
)
1589 memory_region_transaction_begin();
1591 as
->current_map
= g_new(FlatView
, 1);
1592 flatview_init(as
->current_map
);
1593 as
->ioeventfd_nb
= 0;
1594 as
->ioeventfds
= NULL
;
1595 QTAILQ_INSERT_TAIL(&address_spaces
, as
, address_spaces_link
);
1596 as
->name
= g_strdup(name
? name
: "anonymous");
1597 address_space_init_dispatch(as
);
1598 memory_region_update_pending
|= root
->enabled
;
1599 memory_region_transaction_commit();
1602 void address_space_destroy(AddressSpace
*as
)
1604 /* Flush out anything from MemoryListeners listening in on this */
1605 memory_region_transaction_begin();
1607 memory_region_transaction_commit();
1608 QTAILQ_REMOVE(&address_spaces
, as
, address_spaces_link
);
1609 address_space_destroy_dispatch(as
);
1610 flatview_destroy(as
->current_map
);
1612 g_free(as
->current_map
);
1613 g_free(as
->ioeventfds
);
1616 bool io_mem_read(MemoryRegion
*mr
, hwaddr addr
, uint64_t *pval
, unsigned size
)
1618 return memory_region_dispatch_read(mr
, addr
, pval
, size
);
1621 bool io_mem_write(MemoryRegion
*mr
, hwaddr addr
,
1622 uint64_t val
, unsigned size
)
1624 return memory_region_dispatch_write(mr
, addr
, val
, size
);
1627 typedef struct MemoryRegionList MemoryRegionList
;
1629 struct MemoryRegionList
{
1630 const MemoryRegion
*mr
;
1632 QTAILQ_ENTRY(MemoryRegionList
) queue
;
1635 typedef QTAILQ_HEAD(queue
, MemoryRegionList
) MemoryRegionListHead
;
1637 static void mtree_print_mr(fprintf_function mon_printf
, void *f
,
1638 const MemoryRegion
*mr
, unsigned int level
,
1640 MemoryRegionListHead
*alias_print_queue
)
1642 MemoryRegionList
*new_ml
, *ml
, *next_ml
;
1643 MemoryRegionListHead submr_print_queue
;
1644 const MemoryRegion
*submr
;
1647 if (!mr
|| !mr
->enabled
) {
1651 for (i
= 0; i
< level
; i
++) {
1656 MemoryRegionList
*ml
;
1659 /* check if the alias is already in the queue */
1660 QTAILQ_FOREACH(ml
, alias_print_queue
, queue
) {
1661 if (ml
->mr
== mr
->alias
&& !ml
->printed
) {
1667 ml
= g_new(MemoryRegionList
, 1);
1669 ml
->printed
= false;
1670 QTAILQ_INSERT_TAIL(alias_print_queue
, ml
, queue
);
1672 mon_printf(f
, TARGET_FMT_plx
"-" TARGET_FMT_plx
1673 " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx
1674 "-" TARGET_FMT_plx
"\n",
1677 + (hwaddr
)int128_get64(int128_sub(mr
->size
, int128_make64(1))),
1679 mr
->romd_mode
? 'R' : '-',
1680 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1686 + (hwaddr
)int128_get64(mr
->size
) - 1);
1689 TARGET_FMT_plx
"-" TARGET_FMT_plx
" (prio %d, %c%c): %s\n",
1692 + (hwaddr
)int128_get64(int128_sub(mr
->size
, int128_make64(1))),
1694 mr
->romd_mode
? 'R' : '-',
1695 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1700 QTAILQ_INIT(&submr_print_queue
);
1702 QTAILQ_FOREACH(submr
, &mr
->subregions
, subregions_link
) {
1703 new_ml
= g_new(MemoryRegionList
, 1);
1705 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1706 if (new_ml
->mr
->addr
< ml
->mr
->addr
||
1707 (new_ml
->mr
->addr
== ml
->mr
->addr
&&
1708 new_ml
->mr
->priority
> ml
->mr
->priority
)) {
1709 QTAILQ_INSERT_BEFORE(ml
, new_ml
, queue
);
1715 QTAILQ_INSERT_TAIL(&submr_print_queue
, new_ml
, queue
);
1719 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1720 mtree_print_mr(mon_printf
, f
, ml
->mr
, level
+ 1, base
+ mr
->addr
,
1724 QTAILQ_FOREACH_SAFE(ml
, &submr_print_queue
, queue
, next_ml
) {
1729 void mtree_info(fprintf_function mon_printf
, void *f
)
1731 MemoryRegionListHead ml_head
;
1732 MemoryRegionList
*ml
, *ml2
;
1735 QTAILQ_INIT(&ml_head
);
1737 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1738 mon_printf(f
, "%s\n", as
->name
);
1739 mtree_print_mr(mon_printf
, f
, as
->root
, 0, 0, &ml_head
);
1742 mon_printf(f
, "aliases\n");
1743 /* print aliased regions */
1744 QTAILQ_FOREACH(ml
, &ml_head
, queue
) {
1746 mon_printf(f
, "%s\n", ml
->mr
->name
);
1747 mtree_print_mr(mon_printf
, f
, ml
->mr
, 0, 0, &ml_head
);
1751 QTAILQ_FOREACH_SAFE(ml
, &ml_head
, queue
, ml2
) {