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 /* flat_view_mutex is taken around reading as->current_map; the critical
33 * section is extremely short, so I'm using a single mutex for every AS.
34 * We could also RCU for the read-side.
36 * The BQL is taken around transaction commits, hence both locks are taken
37 * while writing to as->current_map (with the BQL taken outside).
39 static QemuMutex flat_view_mutex
;
41 static QTAILQ_HEAD(memory_listeners
, MemoryListener
) memory_listeners
42 = QTAILQ_HEAD_INITIALIZER(memory_listeners
);
44 static QTAILQ_HEAD(, AddressSpace
) address_spaces
45 = QTAILQ_HEAD_INITIALIZER(address_spaces
);
47 static void memory_init(void)
49 qemu_mutex_init(&flat_view_mutex
);
52 typedef struct AddrRange AddrRange
;
55 * Note using signed integers limits us to physical addresses at most
56 * 63 bits wide. They are needed for negative offsetting in aliases
57 * (large MemoryRegion::alias_offset).
64 static AddrRange
addrrange_make(Int128 start
, Int128 size
)
66 return (AddrRange
) { start
, size
};
69 static bool addrrange_equal(AddrRange r1
, AddrRange r2
)
71 return int128_eq(r1
.start
, r2
.start
) && int128_eq(r1
.size
, r2
.size
);
74 static Int128
addrrange_end(AddrRange r
)
76 return int128_add(r
.start
, r
.size
);
79 static AddrRange
addrrange_shift(AddrRange range
, Int128 delta
)
81 int128_addto(&range
.start
, delta
);
85 static bool addrrange_contains(AddrRange range
, Int128 addr
)
87 return int128_ge(addr
, range
.start
)
88 && int128_lt(addr
, addrrange_end(range
));
91 static bool addrrange_intersects(AddrRange r1
, AddrRange r2
)
93 return addrrange_contains(r1
, r2
.start
)
94 || addrrange_contains(r2
, r1
.start
);
97 static AddrRange
addrrange_intersection(AddrRange r1
, AddrRange r2
)
99 Int128 start
= int128_max(r1
.start
, r2
.start
);
100 Int128 end
= int128_min(addrrange_end(r1
), addrrange_end(r2
));
101 return addrrange_make(start
, int128_sub(end
, start
));
104 enum ListenerDirection
{ Forward
, Reverse
};
106 static bool memory_listener_match(MemoryListener
*listener
,
107 MemoryRegionSection
*section
)
109 return !listener
->address_space_filter
110 || listener
->address_space_filter
== section
->address_space
;
113 #define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \
115 MemoryListener *_listener; \
117 switch (_direction) { \
119 QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
120 if (_listener->_callback) { \
121 _listener->_callback(_listener, ##_args); \
126 QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
127 memory_listeners, link) { \
128 if (_listener->_callback) { \
129 _listener->_callback(_listener, ##_args); \
138 #define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \
140 MemoryListener *_listener; \
142 switch (_direction) { \
144 QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
145 if (_listener->_callback \
146 && memory_listener_match(_listener, _section)) { \
147 _listener->_callback(_listener, _section, ##_args); \
152 QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
153 memory_listeners, link) { \
154 if (_listener->_callback \
155 && memory_listener_match(_listener, _section)) { \
156 _listener->_callback(_listener, _section, ##_args); \
165 /* No need to ref/unref .mr, the FlatRange keeps it alive. */
166 #define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback) \
167 MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \
169 .address_space = (as), \
170 .offset_within_region = (fr)->offset_in_region, \
171 .size = (fr)->addr.size, \
172 .offset_within_address_space = int128_get64((fr)->addr.start), \
173 .readonly = (fr)->readonly, \
176 struct CoalescedMemoryRange
{
178 QTAILQ_ENTRY(CoalescedMemoryRange
) link
;
181 struct MemoryRegionIoeventfd
{
188 static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a
,
189 MemoryRegionIoeventfd b
)
191 if (int128_lt(a
.addr
.start
, b
.addr
.start
)) {
193 } else if (int128_gt(a
.addr
.start
, b
.addr
.start
)) {
195 } else if (int128_lt(a
.addr
.size
, b
.addr
.size
)) {
197 } else if (int128_gt(a
.addr
.size
, b
.addr
.size
)) {
199 } else if (a
.match_data
< b
.match_data
) {
201 } else if (a
.match_data
> b
.match_data
) {
203 } else if (a
.match_data
) {
204 if (a
.data
< b
.data
) {
206 } else if (a
.data
> b
.data
) {
212 } else if (a
.e
> b
.e
) {
218 static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a
,
219 MemoryRegionIoeventfd b
)
221 return !memory_region_ioeventfd_before(a
, b
)
222 && !memory_region_ioeventfd_before(b
, a
);
225 typedef struct FlatRange FlatRange
;
226 typedef struct FlatView FlatView
;
228 /* Range of memory in the global map. Addresses are absolute. */
231 hwaddr offset_in_region
;
233 uint8_t dirty_log_mask
;
238 /* Flattened global view of current active memory hierarchy. Kept in sorted
245 unsigned nr_allocated
;
248 typedef struct AddressSpaceOps AddressSpaceOps
;
250 #define FOR_EACH_FLAT_RANGE(var, view) \
251 for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
253 static bool flatrange_equal(FlatRange
*a
, FlatRange
*b
)
255 return a
->mr
== b
->mr
256 && addrrange_equal(a
->addr
, b
->addr
)
257 && a
->offset_in_region
== b
->offset_in_region
258 && a
->romd_mode
== b
->romd_mode
259 && a
->readonly
== b
->readonly
;
262 static void flatview_init(FlatView
*view
)
267 view
->nr_allocated
= 0;
270 /* Insert a range into a given position. Caller is responsible for maintaining
273 static void flatview_insert(FlatView
*view
, unsigned pos
, FlatRange
*range
)
275 if (view
->nr
== view
->nr_allocated
) {
276 view
->nr_allocated
= MAX(2 * view
->nr
, 10);
277 view
->ranges
= g_realloc(view
->ranges
,
278 view
->nr_allocated
* sizeof(*view
->ranges
));
280 memmove(view
->ranges
+ pos
+ 1, view
->ranges
+ pos
,
281 (view
->nr
- pos
) * sizeof(FlatRange
));
282 view
->ranges
[pos
] = *range
;
283 memory_region_ref(range
->mr
);
287 static void flatview_destroy(FlatView
*view
)
291 for (i
= 0; i
< view
->nr
; i
++) {
292 memory_region_unref(view
->ranges
[i
].mr
);
294 g_free(view
->ranges
);
298 static void flatview_ref(FlatView
*view
)
300 atomic_inc(&view
->ref
);
303 static void flatview_unref(FlatView
*view
)
305 if (atomic_fetch_dec(&view
->ref
) == 1) {
306 flatview_destroy(view
);
310 static bool can_merge(FlatRange
*r1
, FlatRange
*r2
)
312 return int128_eq(addrrange_end(r1
->addr
), r2
->addr
.start
)
314 && int128_eq(int128_add(int128_make64(r1
->offset_in_region
),
316 int128_make64(r2
->offset_in_region
))
317 && r1
->dirty_log_mask
== r2
->dirty_log_mask
318 && r1
->romd_mode
== r2
->romd_mode
319 && r1
->readonly
== r2
->readonly
;
322 /* Attempt to simplify a view by merging adjacent ranges */
323 static void flatview_simplify(FlatView
*view
)
328 while (i
< view
->nr
) {
331 && can_merge(&view
->ranges
[j
-1], &view
->ranges
[j
])) {
332 int128_addto(&view
->ranges
[i
].addr
.size
, view
->ranges
[j
].addr
.size
);
336 memmove(&view
->ranges
[i
], &view
->ranges
[j
],
337 (view
->nr
- j
) * sizeof(view
->ranges
[j
]));
342 static void memory_region_oldmmio_read_accessor(void *opaque
,
349 MemoryRegion
*mr
= opaque
;
352 tmp
= mr
->ops
->old_mmio
.read
[ctz32(size
)](mr
->opaque
, addr
);
353 *value
|= (tmp
& mask
) << shift
;
356 static void memory_region_read_accessor(void *opaque
,
363 MemoryRegion
*mr
= opaque
;
366 if (mr
->flush_coalesced_mmio
) {
367 qemu_flush_coalesced_mmio_buffer();
369 tmp
= mr
->ops
->read(mr
->opaque
, addr
, size
);
370 *value
|= (tmp
& mask
) << shift
;
373 static void memory_region_oldmmio_write_accessor(void *opaque
,
380 MemoryRegion
*mr
= opaque
;
383 tmp
= (*value
>> shift
) & mask
;
384 mr
->ops
->old_mmio
.write
[ctz32(size
)](mr
->opaque
, addr
, tmp
);
387 static void memory_region_write_accessor(void *opaque
,
394 MemoryRegion
*mr
= opaque
;
397 if (mr
->flush_coalesced_mmio
) {
398 qemu_flush_coalesced_mmio_buffer();
400 tmp
= (*value
>> shift
) & mask
;
401 mr
->ops
->write(mr
->opaque
, addr
, tmp
, size
);
404 static void access_with_adjusted_size(hwaddr addr
,
407 unsigned access_size_min
,
408 unsigned access_size_max
,
409 void (*access
)(void *opaque
,
417 uint64_t access_mask
;
418 unsigned access_size
;
421 if (!access_size_min
) {
424 if (!access_size_max
) {
428 /* FIXME: support unaligned access? */
429 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
430 access_mask
= -1ULL >> (64 - access_size
* 8);
431 for (i
= 0; i
< size
; i
+= access_size
) {
432 #ifdef TARGET_WORDS_BIGENDIAN
433 access(opaque
, addr
+ i
, value
, access_size
,
434 (size
- access_size
- i
) * 8, access_mask
);
436 access(opaque
, addr
+ i
, value
, access_size
, i
* 8, access_mask
);
441 static AddressSpace
*memory_region_to_address_space(MemoryRegion
*mr
)
448 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
449 if (mr
== as
->root
) {
456 /* Render a memory region into the global view. Ranges in @view obscure
459 static void render_memory_region(FlatView
*view
,
465 MemoryRegion
*subregion
;
467 hwaddr offset_in_region
;
477 int128_addto(&base
, int128_make64(mr
->addr
));
478 readonly
|= mr
->readonly
;
480 tmp
= addrrange_make(base
, mr
->size
);
482 if (!addrrange_intersects(tmp
, clip
)) {
486 clip
= addrrange_intersection(tmp
, clip
);
489 int128_subfrom(&base
, int128_make64(mr
->alias
->addr
));
490 int128_subfrom(&base
, int128_make64(mr
->alias_offset
));
491 render_memory_region(view
, mr
->alias
, base
, clip
, readonly
);
495 /* Render subregions in priority order. */
496 QTAILQ_FOREACH(subregion
, &mr
->subregions
, subregions_link
) {
497 render_memory_region(view
, subregion
, base
, clip
, readonly
);
500 if (!mr
->terminates
) {
504 offset_in_region
= int128_get64(int128_sub(clip
.start
, base
));
509 fr
.dirty_log_mask
= mr
->dirty_log_mask
;
510 fr
.romd_mode
= mr
->romd_mode
;
511 fr
.readonly
= readonly
;
513 /* Render the region itself into any gaps left by the current view. */
514 for (i
= 0; i
< view
->nr
&& int128_nz(remain
); ++i
) {
515 if (int128_ge(base
, addrrange_end(view
->ranges
[i
].addr
))) {
518 if (int128_lt(base
, view
->ranges
[i
].addr
.start
)) {
519 now
= int128_min(remain
,
520 int128_sub(view
->ranges
[i
].addr
.start
, base
));
521 fr
.offset_in_region
= offset_in_region
;
522 fr
.addr
= addrrange_make(base
, now
);
523 flatview_insert(view
, i
, &fr
);
525 int128_addto(&base
, now
);
526 offset_in_region
+= int128_get64(now
);
527 int128_subfrom(&remain
, now
);
529 now
= int128_sub(int128_min(int128_add(base
, remain
),
530 addrrange_end(view
->ranges
[i
].addr
)),
532 int128_addto(&base
, now
);
533 offset_in_region
+= int128_get64(now
);
534 int128_subfrom(&remain
, now
);
536 if (int128_nz(remain
)) {
537 fr
.offset_in_region
= offset_in_region
;
538 fr
.addr
= addrrange_make(base
, remain
);
539 flatview_insert(view
, i
, &fr
);
543 /* Render a memory topology into a list of disjoint absolute ranges. */
544 static FlatView
*generate_memory_topology(MemoryRegion
*mr
)
548 view
= g_new(FlatView
, 1);
552 render_memory_region(view
, mr
, int128_zero(),
553 addrrange_make(int128_zero(), int128_2_64()), false);
555 flatview_simplify(view
);
560 static void address_space_add_del_ioeventfds(AddressSpace
*as
,
561 MemoryRegionIoeventfd
*fds_new
,
563 MemoryRegionIoeventfd
*fds_old
,
567 MemoryRegionIoeventfd
*fd
;
568 MemoryRegionSection section
;
570 /* Generate a symmetric difference of the old and new fd sets, adding
571 * and deleting as necessary.
575 while (iold
< fds_old_nb
|| inew
< fds_new_nb
) {
576 if (iold
< fds_old_nb
577 && (inew
== fds_new_nb
578 || memory_region_ioeventfd_before(fds_old
[iold
],
581 section
= (MemoryRegionSection
) {
583 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
584 .size
= fd
->addr
.size
,
586 MEMORY_LISTENER_CALL(eventfd_del
, Forward
, §ion
,
587 fd
->match_data
, fd
->data
, fd
->e
);
589 } else if (inew
< fds_new_nb
590 && (iold
== fds_old_nb
591 || memory_region_ioeventfd_before(fds_new
[inew
],
594 section
= (MemoryRegionSection
) {
596 .offset_within_address_space
= int128_get64(fd
->addr
.start
),
597 .size
= fd
->addr
.size
,
599 MEMORY_LISTENER_CALL(eventfd_add
, Reverse
, §ion
,
600 fd
->match_data
, fd
->data
, fd
->e
);
609 static FlatView
*address_space_get_flatview(AddressSpace
*as
)
613 qemu_mutex_lock(&flat_view_mutex
);
614 view
= as
->current_map
;
616 qemu_mutex_unlock(&flat_view_mutex
);
620 static void address_space_update_ioeventfds(AddressSpace
*as
)
624 unsigned ioeventfd_nb
= 0;
625 MemoryRegionIoeventfd
*ioeventfds
= NULL
;
629 view
= address_space_get_flatview(as
);
630 FOR_EACH_FLAT_RANGE(fr
, view
) {
631 for (i
= 0; i
< fr
->mr
->ioeventfd_nb
; ++i
) {
632 tmp
= addrrange_shift(fr
->mr
->ioeventfds
[i
].addr
,
633 int128_sub(fr
->addr
.start
,
634 int128_make64(fr
->offset_in_region
)));
635 if (addrrange_intersects(fr
->addr
, tmp
)) {
637 ioeventfds
= g_realloc(ioeventfds
,
638 ioeventfd_nb
* sizeof(*ioeventfds
));
639 ioeventfds
[ioeventfd_nb
-1] = fr
->mr
->ioeventfds
[i
];
640 ioeventfds
[ioeventfd_nb
-1].addr
= tmp
;
645 address_space_add_del_ioeventfds(as
, ioeventfds
, ioeventfd_nb
,
646 as
->ioeventfds
, as
->ioeventfd_nb
);
648 g_free(as
->ioeventfds
);
649 as
->ioeventfds
= ioeventfds
;
650 as
->ioeventfd_nb
= ioeventfd_nb
;
651 flatview_unref(view
);
654 static void address_space_update_topology_pass(AddressSpace
*as
,
655 const FlatView
*old_view
,
656 const FlatView
*new_view
,
660 FlatRange
*frold
, *frnew
;
662 /* Generate a symmetric difference of the old and new memory maps.
663 * Kill ranges in the old map, and instantiate ranges in the new map.
666 while (iold
< old_view
->nr
|| inew
< new_view
->nr
) {
667 if (iold
< old_view
->nr
) {
668 frold
= &old_view
->ranges
[iold
];
672 if (inew
< new_view
->nr
) {
673 frnew
= &new_view
->ranges
[inew
];
680 || int128_lt(frold
->addr
.start
, frnew
->addr
.start
)
681 || (int128_eq(frold
->addr
.start
, frnew
->addr
.start
)
682 && !flatrange_equal(frold
, frnew
)))) {
683 /* In old but not in new, or in both but attributes changed. */
686 MEMORY_LISTENER_UPDATE_REGION(frold
, as
, Reverse
, region_del
);
690 } else if (frold
&& frnew
&& flatrange_equal(frold
, frnew
)) {
691 /* In both and unchanged (except logging may have changed) */
694 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_nop
);
695 if (frold
->dirty_log_mask
&& !frnew
->dirty_log_mask
) {
696 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Reverse
, log_stop
);
697 } else if (frnew
->dirty_log_mask
&& !frold
->dirty_log_mask
) {
698 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, log_start
);
708 MEMORY_LISTENER_UPDATE_REGION(frnew
, as
, Forward
, region_add
);
717 static void address_space_update_topology(AddressSpace
*as
)
719 FlatView
*old_view
= address_space_get_flatview(as
);
720 FlatView
*new_view
= generate_memory_topology(as
->root
);
722 address_space_update_topology_pass(as
, old_view
, new_view
, false);
723 address_space_update_topology_pass(as
, old_view
, new_view
, true);
725 qemu_mutex_lock(&flat_view_mutex
);
726 flatview_unref(as
->current_map
);
727 as
->current_map
= new_view
;
728 qemu_mutex_unlock(&flat_view_mutex
);
730 /* Note that all the old MemoryRegions are still alive up to this
731 * point. This relieves most MemoryListeners from the need to
732 * ref/unref the MemoryRegions they get---unless they use them
733 * outside the iothread mutex, in which case precise reference
734 * counting is necessary.
736 flatview_unref(old_view
);
738 address_space_update_ioeventfds(as
);
741 void memory_region_transaction_begin(void)
743 qemu_flush_coalesced_mmio_buffer();
744 ++memory_region_transaction_depth
;
747 void memory_region_transaction_commit(void)
751 assert(memory_region_transaction_depth
);
752 --memory_region_transaction_depth
;
753 if (!memory_region_transaction_depth
&& memory_region_update_pending
) {
754 memory_region_update_pending
= false;
755 MEMORY_LISTENER_CALL_GLOBAL(begin
, Forward
);
757 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
758 address_space_update_topology(as
);
761 MEMORY_LISTENER_CALL_GLOBAL(commit
, Forward
);
765 static void memory_region_destructor_none(MemoryRegion
*mr
)
769 static void memory_region_destructor_ram(MemoryRegion
*mr
)
771 qemu_ram_free(mr
->ram_addr
);
774 static void memory_region_destructor_alias(MemoryRegion
*mr
)
776 memory_region_unref(mr
->alias
);
779 static void memory_region_destructor_ram_from_ptr(MemoryRegion
*mr
)
781 qemu_ram_free_from_ptr(mr
->ram_addr
);
784 static void memory_region_destructor_rom_device(MemoryRegion
*mr
)
786 qemu_ram_free(mr
->ram_addr
& TARGET_PAGE_MASK
);
789 static bool memory_region_wrong_endianness(MemoryRegion
*mr
)
791 #ifdef TARGET_WORDS_BIGENDIAN
792 return mr
->ops
->endianness
== DEVICE_LITTLE_ENDIAN
;
794 return mr
->ops
->endianness
== DEVICE_BIG_ENDIAN
;
798 void memory_region_init(MemoryRegion
*mr
,
803 mr
->ops
= &unassigned_mem_ops
;
806 mr
->iommu_ops
= NULL
;
809 mr
->size
= int128_make64(size
);
810 if (size
== UINT64_MAX
) {
811 mr
->size
= int128_2_64();
816 mr
->terminates
= false;
818 mr
->romd_mode
= true;
819 mr
->readonly
= false;
820 mr
->rom_device
= false;
821 mr
->destructor
= memory_region_destructor_none
;
823 mr
->may_overlap
= false;
825 QTAILQ_INIT(&mr
->subregions
);
826 memset(&mr
->subregions_link
, 0, sizeof mr
->subregions_link
);
827 QTAILQ_INIT(&mr
->coalesced
);
828 mr
->name
= g_strdup(name
);
829 mr
->dirty_log_mask
= 0;
830 mr
->ioeventfd_nb
= 0;
831 mr
->ioeventfds
= NULL
;
832 mr
->flush_coalesced_mmio
= false;
835 static uint64_t unassigned_mem_read(void *opaque
, hwaddr addr
,
838 #ifdef DEBUG_UNASSIGNED
839 printf("Unassigned mem read " TARGET_FMT_plx
"\n", addr
);
841 if (cpu_single_env
!= NULL
) {
842 cpu_unassigned_access(ENV_GET_CPU(cpu_single_env
),
843 addr
, false, false, 0, size
);
848 static void unassigned_mem_write(void *opaque
, hwaddr addr
,
849 uint64_t val
, unsigned size
)
851 #ifdef DEBUG_UNASSIGNED
852 printf("Unassigned mem write " TARGET_FMT_plx
" = 0x%"PRIx64
"\n", addr
, val
);
854 if (cpu_single_env
!= NULL
) {
855 cpu_unassigned_access(ENV_GET_CPU(cpu_single_env
),
856 addr
, true, false, 0, size
);
860 static bool unassigned_mem_accepts(void *opaque
, hwaddr addr
,
861 unsigned size
, bool is_write
)
866 const MemoryRegionOps unassigned_mem_ops
= {
867 .valid
.accepts
= unassigned_mem_accepts
,
868 .endianness
= DEVICE_NATIVE_ENDIAN
,
871 bool memory_region_access_valid(MemoryRegion
*mr
,
876 int access_size_min
, access_size_max
;
879 if (!mr
->ops
->valid
.unaligned
&& (addr
& (size
- 1))) {
883 if (!mr
->ops
->valid
.accepts
) {
887 access_size_min
= mr
->ops
->valid
.min_access_size
;
888 if (!mr
->ops
->valid
.min_access_size
) {
892 access_size_max
= mr
->ops
->valid
.max_access_size
;
893 if (!mr
->ops
->valid
.max_access_size
) {
897 access_size
= MAX(MIN(size
, access_size_max
), access_size_min
);
898 for (i
= 0; i
< size
; i
+= access_size
) {
899 if (!mr
->ops
->valid
.accepts(mr
->opaque
, addr
+ i
, access_size
,
908 static uint64_t memory_region_dispatch_read1(MemoryRegion
*mr
,
915 access_with_adjusted_size(addr
, &data
, size
,
916 mr
->ops
->impl
.min_access_size
,
917 mr
->ops
->impl
.max_access_size
,
918 memory_region_read_accessor
, mr
);
920 access_with_adjusted_size(addr
, &data
, size
, 1, 4,
921 memory_region_oldmmio_read_accessor
, mr
);
927 static void adjust_endianness(MemoryRegion
*mr
, uint64_t *data
, unsigned size
)
929 if (memory_region_wrong_endianness(mr
)) {
934 *data
= bswap16(*data
);
937 *data
= bswap32(*data
);
940 *data
= bswap64(*data
);
948 static bool memory_region_dispatch_read(MemoryRegion
*mr
,
953 if (!memory_region_access_valid(mr
, addr
, size
, false)) {
954 *pval
= unassigned_mem_read(mr
, addr
, size
);
958 *pval
= memory_region_dispatch_read1(mr
, addr
, size
);
959 adjust_endianness(mr
, pval
, size
);
963 static bool memory_region_dispatch_write(MemoryRegion
*mr
,
968 if (!memory_region_access_valid(mr
, addr
, size
, true)) {
969 unassigned_mem_write(mr
, addr
, data
, size
);
973 adjust_endianness(mr
, &data
, size
);
975 if (mr
->ops
->write
) {
976 access_with_adjusted_size(addr
, &data
, size
,
977 mr
->ops
->impl
.min_access_size
,
978 mr
->ops
->impl
.max_access_size
,
979 memory_region_write_accessor
, mr
);
981 access_with_adjusted_size(addr
, &data
, size
, 1, 4,
982 memory_region_oldmmio_write_accessor
, mr
);
987 void memory_region_init_io(MemoryRegion
*mr
,
989 const MemoryRegionOps
*ops
,
994 memory_region_init(mr
, owner
, name
, size
);
997 mr
->terminates
= true;
998 mr
->ram_addr
= ~(ram_addr_t
)0;
1001 void memory_region_init_ram(MemoryRegion
*mr
,
1006 memory_region_init(mr
, owner
, name
, size
);
1008 mr
->terminates
= true;
1009 mr
->destructor
= memory_region_destructor_ram
;
1010 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
1013 void memory_region_init_ram_ptr(MemoryRegion
*mr
,
1019 memory_region_init(mr
, owner
, name
, size
);
1021 mr
->terminates
= true;
1022 mr
->destructor
= memory_region_destructor_ram_from_ptr
;
1023 mr
->ram_addr
= qemu_ram_alloc_from_ptr(size
, ptr
, mr
);
1026 void memory_region_init_alias(MemoryRegion
*mr
,
1033 memory_region_init(mr
, owner
, name
, size
);
1034 memory_region_ref(orig
);
1035 mr
->destructor
= memory_region_destructor_alias
;
1037 mr
->alias_offset
= offset
;
1040 void memory_region_init_rom_device(MemoryRegion
*mr
,
1042 const MemoryRegionOps
*ops
,
1047 memory_region_init(mr
, owner
, name
, size
);
1049 mr
->opaque
= opaque
;
1050 mr
->terminates
= true;
1051 mr
->rom_device
= true;
1052 mr
->destructor
= memory_region_destructor_rom_device
;
1053 mr
->ram_addr
= qemu_ram_alloc(size
, mr
);
1056 void memory_region_init_iommu(MemoryRegion
*mr
,
1058 const MemoryRegionIOMMUOps
*ops
,
1062 memory_region_init(mr
, owner
, name
, size
);
1063 mr
->iommu_ops
= ops
,
1064 mr
->terminates
= true; /* then re-forwards */
1065 notifier_list_init(&mr
->iommu_notify
);
1068 void memory_region_init_reservation(MemoryRegion
*mr
,
1073 memory_region_init_io(mr
, owner
, &unassigned_mem_ops
, mr
, name
, size
);
1076 void memory_region_destroy(MemoryRegion
*mr
)
1078 assert(QTAILQ_EMPTY(&mr
->subregions
));
1079 assert(memory_region_transaction_depth
== 0);
1081 memory_region_clear_coalescing(mr
);
1082 g_free((char *)mr
->name
);
1083 g_free(mr
->ioeventfds
);
1086 Object
*memory_region_owner(MemoryRegion
*mr
)
1091 void memory_region_ref(MemoryRegion
*mr
)
1093 if (mr
&& mr
->owner
) {
1094 object_ref(mr
->owner
);
1098 void memory_region_unref(MemoryRegion
*mr
)
1100 if (mr
&& mr
->owner
) {
1101 object_unref(mr
->owner
);
1105 uint64_t memory_region_size(MemoryRegion
*mr
)
1107 if (int128_eq(mr
->size
, int128_2_64())) {
1110 return int128_get64(mr
->size
);
1113 const char *memory_region_name(MemoryRegion
*mr
)
1118 bool memory_region_is_ram(MemoryRegion
*mr
)
1123 bool memory_region_is_logging(MemoryRegion
*mr
)
1125 return mr
->dirty_log_mask
;
1128 bool memory_region_is_rom(MemoryRegion
*mr
)
1130 return mr
->ram
&& mr
->readonly
;
1133 bool memory_region_is_iommu(MemoryRegion
*mr
)
1135 return mr
->iommu_ops
;
1138 void memory_region_register_iommu_notifier(MemoryRegion
*mr
, Notifier
*n
)
1140 notifier_list_add(&mr
->iommu_notify
, n
);
1143 void memory_region_unregister_iommu_notifier(Notifier
*n
)
1148 void memory_region_notify_iommu(MemoryRegion
*mr
,
1149 IOMMUTLBEntry entry
)
1151 assert(memory_region_is_iommu(mr
));
1152 notifier_list_notify(&mr
->iommu_notify
, &entry
);
1155 void memory_region_set_log(MemoryRegion
*mr
, bool log
, unsigned client
)
1157 uint8_t mask
= 1 << client
;
1159 memory_region_transaction_begin();
1160 mr
->dirty_log_mask
= (mr
->dirty_log_mask
& ~mask
) | (log
* mask
);
1161 memory_region_update_pending
|= mr
->enabled
;
1162 memory_region_transaction_commit();
1165 bool memory_region_get_dirty(MemoryRegion
*mr
, hwaddr addr
,
1166 hwaddr size
, unsigned client
)
1168 assert(mr
->terminates
);
1169 return cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1173 void memory_region_set_dirty(MemoryRegion
*mr
, hwaddr addr
,
1176 assert(mr
->terminates
);
1177 return cpu_physical_memory_set_dirty_range(mr
->ram_addr
+ addr
, size
, -1);
1180 bool memory_region_test_and_clear_dirty(MemoryRegion
*mr
, hwaddr addr
,
1181 hwaddr size
, unsigned client
)
1184 assert(mr
->terminates
);
1185 ret
= cpu_physical_memory_get_dirty(mr
->ram_addr
+ addr
, size
,
1188 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1189 mr
->ram_addr
+ addr
+ size
,
1196 void memory_region_sync_dirty_bitmap(MemoryRegion
*mr
)
1201 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1202 FlatView
*view
= address_space_get_flatview(as
);
1203 FOR_EACH_FLAT_RANGE(fr
, view
) {
1205 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1208 flatview_unref(view
);
1212 void memory_region_set_readonly(MemoryRegion
*mr
, bool readonly
)
1214 if (mr
->readonly
!= readonly
) {
1215 memory_region_transaction_begin();
1216 mr
->readonly
= readonly
;
1217 memory_region_update_pending
|= mr
->enabled
;
1218 memory_region_transaction_commit();
1222 void memory_region_rom_device_set_romd(MemoryRegion
*mr
, bool romd_mode
)
1224 if (mr
->romd_mode
!= romd_mode
) {
1225 memory_region_transaction_begin();
1226 mr
->romd_mode
= romd_mode
;
1227 memory_region_update_pending
|= mr
->enabled
;
1228 memory_region_transaction_commit();
1232 void memory_region_reset_dirty(MemoryRegion
*mr
, hwaddr addr
,
1233 hwaddr size
, unsigned client
)
1235 assert(mr
->terminates
);
1236 cpu_physical_memory_reset_dirty(mr
->ram_addr
+ addr
,
1237 mr
->ram_addr
+ addr
+ size
,
1241 void *memory_region_get_ram_ptr(MemoryRegion
*mr
)
1244 return memory_region_get_ram_ptr(mr
->alias
) + mr
->alias_offset
;
1247 assert(mr
->terminates
);
1249 return qemu_get_ram_ptr(mr
->ram_addr
& TARGET_PAGE_MASK
);
1252 static void memory_region_update_coalesced_range_as(MemoryRegion
*mr
, AddressSpace
*as
)
1256 CoalescedMemoryRange
*cmr
;
1258 MemoryRegionSection section
;
1260 view
= address_space_get_flatview(as
);
1261 FOR_EACH_FLAT_RANGE(fr
, view
) {
1263 section
= (MemoryRegionSection
) {
1264 .address_space
= as
,
1265 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1266 .size
= fr
->addr
.size
,
1269 MEMORY_LISTENER_CALL(coalesced_mmio_del
, Reverse
, §ion
,
1270 int128_get64(fr
->addr
.start
),
1271 int128_get64(fr
->addr
.size
));
1272 QTAILQ_FOREACH(cmr
, &mr
->coalesced
, link
) {
1273 tmp
= addrrange_shift(cmr
->addr
,
1274 int128_sub(fr
->addr
.start
,
1275 int128_make64(fr
->offset_in_region
)));
1276 if (!addrrange_intersects(tmp
, fr
->addr
)) {
1279 tmp
= addrrange_intersection(tmp
, fr
->addr
);
1280 MEMORY_LISTENER_CALL(coalesced_mmio_add
, Forward
, §ion
,
1281 int128_get64(tmp
.start
),
1282 int128_get64(tmp
.size
));
1286 flatview_unref(view
);
1289 static void memory_region_update_coalesced_range(MemoryRegion
*mr
)
1293 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1294 memory_region_update_coalesced_range_as(mr
, as
);
1298 void memory_region_set_coalescing(MemoryRegion
*mr
)
1300 memory_region_clear_coalescing(mr
);
1301 memory_region_add_coalescing(mr
, 0, int128_get64(mr
->size
));
1304 void memory_region_add_coalescing(MemoryRegion
*mr
,
1308 CoalescedMemoryRange
*cmr
= g_malloc(sizeof(*cmr
));
1310 cmr
->addr
= addrrange_make(int128_make64(offset
), int128_make64(size
));
1311 QTAILQ_INSERT_TAIL(&mr
->coalesced
, cmr
, link
);
1312 memory_region_update_coalesced_range(mr
);
1313 memory_region_set_flush_coalesced(mr
);
1316 void memory_region_clear_coalescing(MemoryRegion
*mr
)
1318 CoalescedMemoryRange
*cmr
;
1320 qemu_flush_coalesced_mmio_buffer();
1321 mr
->flush_coalesced_mmio
= false;
1323 while (!QTAILQ_EMPTY(&mr
->coalesced
)) {
1324 cmr
= QTAILQ_FIRST(&mr
->coalesced
);
1325 QTAILQ_REMOVE(&mr
->coalesced
, cmr
, link
);
1328 memory_region_update_coalesced_range(mr
);
1331 void memory_region_set_flush_coalesced(MemoryRegion
*mr
)
1333 mr
->flush_coalesced_mmio
= true;
1336 void memory_region_clear_flush_coalesced(MemoryRegion
*mr
)
1338 qemu_flush_coalesced_mmio_buffer();
1339 if (QTAILQ_EMPTY(&mr
->coalesced
)) {
1340 mr
->flush_coalesced_mmio
= false;
1344 void memory_region_add_eventfd(MemoryRegion
*mr
,
1351 MemoryRegionIoeventfd mrfd
= {
1352 .addr
.start
= int128_make64(addr
),
1353 .addr
.size
= int128_make64(size
),
1354 .match_data
= match_data
,
1360 adjust_endianness(mr
, &mrfd
.data
, size
);
1361 memory_region_transaction_begin();
1362 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1363 if (memory_region_ioeventfd_before(mrfd
, mr
->ioeventfds
[i
])) {
1368 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1369 sizeof(*mr
->ioeventfds
) * mr
->ioeventfd_nb
);
1370 memmove(&mr
->ioeventfds
[i
+1], &mr
->ioeventfds
[i
],
1371 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
-1 - i
));
1372 mr
->ioeventfds
[i
] = mrfd
;
1373 memory_region_update_pending
|= mr
->enabled
;
1374 memory_region_transaction_commit();
1377 void memory_region_del_eventfd(MemoryRegion
*mr
,
1384 MemoryRegionIoeventfd mrfd
= {
1385 .addr
.start
= int128_make64(addr
),
1386 .addr
.size
= int128_make64(size
),
1387 .match_data
= match_data
,
1393 adjust_endianness(mr
, &mrfd
.data
, size
);
1394 memory_region_transaction_begin();
1395 for (i
= 0; i
< mr
->ioeventfd_nb
; ++i
) {
1396 if (memory_region_ioeventfd_equal(mrfd
, mr
->ioeventfds
[i
])) {
1400 assert(i
!= mr
->ioeventfd_nb
);
1401 memmove(&mr
->ioeventfds
[i
], &mr
->ioeventfds
[i
+1],
1402 sizeof(*mr
->ioeventfds
) * (mr
->ioeventfd_nb
- (i
+1)));
1404 mr
->ioeventfds
= g_realloc(mr
->ioeventfds
,
1405 sizeof(*mr
->ioeventfds
)*mr
->ioeventfd_nb
+ 1);
1406 memory_region_update_pending
|= mr
->enabled
;
1407 memory_region_transaction_commit();
1410 static void memory_region_add_subregion_common(MemoryRegion
*mr
,
1412 MemoryRegion
*subregion
)
1414 MemoryRegion
*other
;
1416 memory_region_transaction_begin();
1418 assert(!subregion
->parent
);
1419 memory_region_ref(subregion
);
1420 subregion
->parent
= mr
;
1421 subregion
->addr
= offset
;
1422 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1423 if (subregion
->may_overlap
|| other
->may_overlap
) {
1426 if (int128_ge(int128_make64(offset
),
1427 int128_add(int128_make64(other
->addr
), other
->size
))
1428 || int128_le(int128_add(int128_make64(offset
), subregion
->size
),
1429 int128_make64(other
->addr
))) {
1433 printf("warning: subregion collision %llx/%llx (%s) "
1434 "vs %llx/%llx (%s)\n",
1435 (unsigned long long)offset
,
1436 (unsigned long long)int128_get64(subregion
->size
),
1438 (unsigned long long)other
->addr
,
1439 (unsigned long long)int128_get64(other
->size
),
1443 QTAILQ_FOREACH(other
, &mr
->subregions
, subregions_link
) {
1444 if (subregion
->priority
>= other
->priority
) {
1445 QTAILQ_INSERT_BEFORE(other
, subregion
, subregions_link
);
1449 QTAILQ_INSERT_TAIL(&mr
->subregions
, subregion
, subregions_link
);
1451 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1452 memory_region_transaction_commit();
1456 void memory_region_add_subregion(MemoryRegion
*mr
,
1458 MemoryRegion
*subregion
)
1460 subregion
->may_overlap
= false;
1461 subregion
->priority
= 0;
1462 memory_region_add_subregion_common(mr
, offset
, subregion
);
1465 void memory_region_add_subregion_overlap(MemoryRegion
*mr
,
1467 MemoryRegion
*subregion
,
1470 subregion
->may_overlap
= true;
1471 subregion
->priority
= priority
;
1472 memory_region_add_subregion_common(mr
, offset
, subregion
);
1475 void memory_region_del_subregion(MemoryRegion
*mr
,
1476 MemoryRegion
*subregion
)
1478 memory_region_transaction_begin();
1479 assert(subregion
->parent
== mr
);
1480 subregion
->parent
= NULL
;
1481 QTAILQ_REMOVE(&mr
->subregions
, subregion
, subregions_link
);
1482 memory_region_unref(subregion
);
1483 memory_region_update_pending
|= mr
->enabled
&& subregion
->enabled
;
1484 memory_region_transaction_commit();
1487 void memory_region_set_enabled(MemoryRegion
*mr
, bool enabled
)
1489 if (enabled
== mr
->enabled
) {
1492 memory_region_transaction_begin();
1493 mr
->enabled
= enabled
;
1494 memory_region_update_pending
= true;
1495 memory_region_transaction_commit();
1498 void memory_region_set_address(MemoryRegion
*mr
, hwaddr addr
)
1500 MemoryRegion
*parent
= mr
->parent
;
1501 unsigned priority
= mr
->priority
;
1502 bool may_overlap
= mr
->may_overlap
;
1504 if (addr
== mr
->addr
|| !parent
) {
1509 memory_region_transaction_begin();
1510 memory_region_ref(mr
);
1511 memory_region_del_subregion(parent
, mr
);
1513 memory_region_add_subregion_overlap(parent
, addr
, mr
, priority
);
1515 memory_region_add_subregion(parent
, addr
, mr
);
1517 memory_region_unref(mr
);
1518 memory_region_transaction_commit();
1521 void memory_region_set_alias_offset(MemoryRegion
*mr
, hwaddr offset
)
1525 if (offset
== mr
->alias_offset
) {
1529 memory_region_transaction_begin();
1530 mr
->alias_offset
= offset
;
1531 memory_region_update_pending
|= mr
->enabled
;
1532 memory_region_transaction_commit();
1535 ram_addr_t
memory_region_get_ram_addr(MemoryRegion
*mr
)
1537 return mr
->ram_addr
;
1540 static int cmp_flatrange_addr(const void *addr_
, const void *fr_
)
1542 const AddrRange
*addr
= addr_
;
1543 const FlatRange
*fr
= fr_
;
1545 if (int128_le(addrrange_end(*addr
), fr
->addr
.start
)) {
1547 } else if (int128_ge(addr
->start
, addrrange_end(fr
->addr
))) {
1553 static FlatRange
*flatview_lookup(FlatView
*view
, AddrRange addr
)
1555 return bsearch(&addr
, view
->ranges
, view
->nr
,
1556 sizeof(FlatRange
), cmp_flatrange_addr
);
1559 bool memory_region_present(MemoryRegion
*parent
, hwaddr addr
)
1561 MemoryRegion
*mr
= memory_region_find(parent
, addr
, 1).mr
;
1565 memory_region_unref(mr
);
1569 MemoryRegionSection
memory_region_find(MemoryRegion
*mr
,
1570 hwaddr addr
, uint64_t size
)
1572 MemoryRegionSection ret
= { .mr
= NULL
};
1580 for (root
= mr
; root
->parent
; ) {
1581 root
= root
->parent
;
1585 as
= memory_region_to_address_space(root
);
1586 range
= addrrange_make(int128_make64(addr
), int128_make64(size
));
1588 view
= address_space_get_flatview(as
);
1589 fr
= flatview_lookup(view
, range
);
1594 while (fr
> view
->ranges
&& addrrange_intersects(fr
[-1].addr
, range
)) {
1599 ret
.address_space
= as
;
1600 range
= addrrange_intersection(range
, fr
->addr
);
1601 ret
.offset_within_region
= fr
->offset_in_region
;
1602 ret
.offset_within_region
+= int128_get64(int128_sub(range
.start
,
1604 ret
.size
= range
.size
;
1605 ret
.offset_within_address_space
= int128_get64(range
.start
);
1606 ret
.readonly
= fr
->readonly
;
1607 memory_region_ref(ret
.mr
);
1609 flatview_unref(view
);
1613 void address_space_sync_dirty_bitmap(AddressSpace
*as
)
1618 view
= address_space_get_flatview(as
);
1619 FOR_EACH_FLAT_RANGE(fr
, view
) {
1620 MEMORY_LISTENER_UPDATE_REGION(fr
, as
, Forward
, log_sync
);
1622 flatview_unref(view
);
1625 void memory_global_dirty_log_start(void)
1627 global_dirty_log
= true;
1628 MEMORY_LISTENER_CALL_GLOBAL(log_global_start
, Forward
);
1631 void memory_global_dirty_log_stop(void)
1633 global_dirty_log
= false;
1634 MEMORY_LISTENER_CALL_GLOBAL(log_global_stop
, Reverse
);
1637 static void listener_add_address_space(MemoryListener
*listener
,
1643 if (listener
->address_space_filter
1644 && listener
->address_space_filter
!= as
) {
1648 if (global_dirty_log
) {
1649 if (listener
->log_global_start
) {
1650 listener
->log_global_start(listener
);
1654 view
= address_space_get_flatview(as
);
1655 FOR_EACH_FLAT_RANGE(fr
, view
) {
1656 MemoryRegionSection section
= {
1658 .address_space
= as
,
1659 .offset_within_region
= fr
->offset_in_region
,
1660 .size
= fr
->addr
.size
,
1661 .offset_within_address_space
= int128_get64(fr
->addr
.start
),
1662 .readonly
= fr
->readonly
,
1664 if (listener
->region_add
) {
1665 listener
->region_add(listener
, §ion
);
1668 flatview_unref(view
);
1671 void memory_listener_register(MemoryListener
*listener
, AddressSpace
*filter
)
1673 MemoryListener
*other
= NULL
;
1676 listener
->address_space_filter
= filter
;
1677 if (QTAILQ_EMPTY(&memory_listeners
)
1678 || listener
->priority
>= QTAILQ_LAST(&memory_listeners
,
1679 memory_listeners
)->priority
) {
1680 QTAILQ_INSERT_TAIL(&memory_listeners
, listener
, link
);
1682 QTAILQ_FOREACH(other
, &memory_listeners
, link
) {
1683 if (listener
->priority
< other
->priority
) {
1687 QTAILQ_INSERT_BEFORE(other
, listener
, link
);
1690 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1691 listener_add_address_space(listener
, as
);
1695 void memory_listener_unregister(MemoryListener
*listener
)
1697 QTAILQ_REMOVE(&memory_listeners
, listener
, link
);
1700 void address_space_init(AddressSpace
*as
, MemoryRegion
*root
, const char *name
)
1702 if (QTAILQ_EMPTY(&address_spaces
)) {
1706 memory_region_transaction_begin();
1708 as
->current_map
= g_new(FlatView
, 1);
1709 flatview_init(as
->current_map
);
1710 as
->ioeventfd_nb
= 0;
1711 as
->ioeventfds
= NULL
;
1712 QTAILQ_INSERT_TAIL(&address_spaces
, as
, address_spaces_link
);
1713 as
->name
= g_strdup(name
? name
: "anonymous");
1714 address_space_init_dispatch(as
);
1715 memory_region_update_pending
|= root
->enabled
;
1716 memory_region_transaction_commit();
1719 void address_space_destroy(AddressSpace
*as
)
1721 /* Flush out anything from MemoryListeners listening in on this */
1722 memory_region_transaction_begin();
1724 memory_region_transaction_commit();
1725 QTAILQ_REMOVE(&address_spaces
, as
, address_spaces_link
);
1726 address_space_destroy_dispatch(as
);
1727 flatview_unref(as
->current_map
);
1729 g_free(as
->ioeventfds
);
1732 bool io_mem_read(MemoryRegion
*mr
, hwaddr addr
, uint64_t *pval
, unsigned size
)
1734 return memory_region_dispatch_read(mr
, addr
, pval
, size
);
1737 bool io_mem_write(MemoryRegion
*mr
, hwaddr addr
,
1738 uint64_t val
, unsigned size
)
1740 return memory_region_dispatch_write(mr
, addr
, val
, size
);
1743 typedef struct MemoryRegionList MemoryRegionList
;
1745 struct MemoryRegionList
{
1746 const MemoryRegion
*mr
;
1748 QTAILQ_ENTRY(MemoryRegionList
) queue
;
1751 typedef QTAILQ_HEAD(queue
, MemoryRegionList
) MemoryRegionListHead
;
1753 static void mtree_print_mr(fprintf_function mon_printf
, void *f
,
1754 const MemoryRegion
*mr
, unsigned int level
,
1756 MemoryRegionListHead
*alias_print_queue
)
1758 MemoryRegionList
*new_ml
, *ml
, *next_ml
;
1759 MemoryRegionListHead submr_print_queue
;
1760 const MemoryRegion
*submr
;
1763 if (!mr
|| !mr
->enabled
) {
1767 for (i
= 0; i
< level
; i
++) {
1772 MemoryRegionList
*ml
;
1775 /* check if the alias is already in the queue */
1776 QTAILQ_FOREACH(ml
, alias_print_queue
, queue
) {
1777 if (ml
->mr
== mr
->alias
&& !ml
->printed
) {
1783 ml
= g_new(MemoryRegionList
, 1);
1785 ml
->printed
= false;
1786 QTAILQ_INSERT_TAIL(alias_print_queue
, ml
, queue
);
1788 mon_printf(f
, TARGET_FMT_plx
"-" TARGET_FMT_plx
1789 " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx
1790 "-" TARGET_FMT_plx
"\n",
1793 + (hwaddr
)int128_get64(int128_sub(mr
->size
, int128_make64(1))),
1795 mr
->romd_mode
? 'R' : '-',
1796 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1802 + (hwaddr
)int128_get64(mr
->size
) - 1);
1805 TARGET_FMT_plx
"-" TARGET_FMT_plx
" (prio %d, %c%c): %s\n",
1808 + (hwaddr
)int128_get64(int128_sub(mr
->size
, int128_make64(1))),
1810 mr
->romd_mode
? 'R' : '-',
1811 !mr
->readonly
&& !(mr
->rom_device
&& mr
->romd_mode
) ? 'W'
1816 QTAILQ_INIT(&submr_print_queue
);
1818 QTAILQ_FOREACH(submr
, &mr
->subregions
, subregions_link
) {
1819 new_ml
= g_new(MemoryRegionList
, 1);
1821 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1822 if (new_ml
->mr
->addr
< ml
->mr
->addr
||
1823 (new_ml
->mr
->addr
== ml
->mr
->addr
&&
1824 new_ml
->mr
->priority
> ml
->mr
->priority
)) {
1825 QTAILQ_INSERT_BEFORE(ml
, new_ml
, queue
);
1831 QTAILQ_INSERT_TAIL(&submr_print_queue
, new_ml
, queue
);
1835 QTAILQ_FOREACH(ml
, &submr_print_queue
, queue
) {
1836 mtree_print_mr(mon_printf
, f
, ml
->mr
, level
+ 1, base
+ mr
->addr
,
1840 QTAILQ_FOREACH_SAFE(ml
, &submr_print_queue
, queue
, next_ml
) {
1845 void mtree_info(fprintf_function mon_printf
, void *f
)
1847 MemoryRegionListHead ml_head
;
1848 MemoryRegionList
*ml
, *ml2
;
1851 QTAILQ_INIT(&ml_head
);
1853 QTAILQ_FOREACH(as
, &address_spaces
, address_spaces_link
) {
1854 mon_printf(f
, "%s\n", as
->name
);
1855 mtree_print_mr(mon_printf
, f
, as
->root
, 0, 0, &ml_head
);
1858 mon_printf(f
, "aliases\n");
1859 /* print aliased regions */
1860 QTAILQ_FOREACH(ml
, &ml_head
, queue
) {
1862 mon_printf(f
, "%s\n", ml
->mr
->name
);
1863 mtree_print_mr(mon_printf
, f
, ml
->mr
, 0, 0, &ml_head
);
1867 QTAILQ_FOREACH_SAFE(ml
, &ml_head
, queue
, ml2
) {