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-rw-r--r--qemu/memory.c2442
1 files changed, 0 insertions, 2442 deletions
diff --git a/qemu/memory.c b/qemu/memory.c
deleted file mode 100644
index f76f85df9..000000000
--- a/qemu/memory.c
+++ /dev/null
@@ -1,2442 +0,0 @@
-/*
- * Physical memory management
- *
- * Copyright 2011 Red Hat, Inc. and/or its affiliates
- *
- * Authors:
- * Avi Kivity <avi@redhat.com>
- *
- * This work is licensed under the terms of the GNU GPL, version 2. See
- * the COPYING file in the top-level directory.
- *
- * Contributions after 2012-01-13 are licensed under the terms of the
- * GNU GPL, version 2 or (at your option) any later version.
- */
-
-#include "qemu/osdep.h"
-#include "qapi/error.h"
-#include "exec/memory.h"
-#include "exec/address-spaces.h"
-#include "exec/ioport.h"
-#include "qapi/visitor.h"
-#include "qemu/bitops.h"
-#include "qemu/error-report.h"
-#include "qom/object.h"
-#include "trace.h"
-
-#include "exec/memory-internal.h"
-#include "exec/ram_addr.h"
-#include "sysemu/kvm.h"
-#include "sysemu/sysemu.h"
-
-//#define DEBUG_UNASSIGNED
-
-#define RAM_ADDR_INVALID (~(ram_addr_t)0)
-
-static unsigned memory_region_transaction_depth;
-static bool memory_region_update_pending;
-static bool ioeventfd_update_pending;
-static bool global_dirty_log = false;
-
-static QTAILQ_HEAD(memory_listeners, MemoryListener) memory_listeners
- = QTAILQ_HEAD_INITIALIZER(memory_listeners);
-
-static QTAILQ_HEAD(, AddressSpace) address_spaces
- = QTAILQ_HEAD_INITIALIZER(address_spaces);
-
-typedef struct AddrRange AddrRange;
-
-/*
- * Note that signed integers are needed for negative offsetting in aliases
- * (large MemoryRegion::alias_offset).
- */
-struct AddrRange {
- Int128 start;
- Int128 size;
-};
-
-static AddrRange addrrange_make(Int128 start, Int128 size)
-{
- return (AddrRange) { start, size };
-}
-
-static bool addrrange_equal(AddrRange r1, AddrRange r2)
-{
- return int128_eq(r1.start, r2.start) && int128_eq(r1.size, r2.size);
-}
-
-static Int128 addrrange_end(AddrRange r)
-{
- return int128_add(r.start, r.size);
-}
-
-static AddrRange addrrange_shift(AddrRange range, Int128 delta)
-{
- int128_addto(&range.start, delta);
- return range;
-}
-
-static bool addrrange_contains(AddrRange range, Int128 addr)
-{
- return int128_ge(addr, range.start)
- && int128_lt(addr, addrrange_end(range));
-}
-
-static bool addrrange_intersects(AddrRange r1, AddrRange r2)
-{
- return addrrange_contains(r1, r2.start)
- || addrrange_contains(r2, r1.start);
-}
-
-static AddrRange addrrange_intersection(AddrRange r1, AddrRange r2)
-{
- Int128 start = int128_max(r1.start, r2.start);
- Int128 end = int128_min(addrrange_end(r1), addrrange_end(r2));
- return addrrange_make(start, int128_sub(end, start));
-}
-
-enum ListenerDirection { Forward, Reverse };
-
-static bool memory_listener_match(MemoryListener *listener,
- MemoryRegionSection *section)
-{
- return !listener->address_space_filter
- || listener->address_space_filter == section->address_space;
-}
-
-#define MEMORY_LISTENER_CALL_GLOBAL(_callback, _direction, _args...) \
- do { \
- MemoryListener *_listener; \
- \
- switch (_direction) { \
- case Forward: \
- QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
- if (_listener->_callback) { \
- _listener->_callback(_listener, ##_args); \
- } \
- } \
- break; \
- case Reverse: \
- QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
- memory_listeners, link) { \
- if (_listener->_callback) { \
- _listener->_callback(_listener, ##_args); \
- } \
- } \
- break; \
- default: \
- abort(); \
- } \
- } while (0)
-
-#define MEMORY_LISTENER_CALL(_callback, _direction, _section, _args...) \
- do { \
- MemoryListener *_listener; \
- \
- switch (_direction) { \
- case Forward: \
- QTAILQ_FOREACH(_listener, &memory_listeners, link) { \
- if (_listener->_callback \
- && memory_listener_match(_listener, _section)) { \
- _listener->_callback(_listener, _section, ##_args); \
- } \
- } \
- break; \
- case Reverse: \
- QTAILQ_FOREACH_REVERSE(_listener, &memory_listeners, \
- memory_listeners, link) { \
- if (_listener->_callback \
- && memory_listener_match(_listener, _section)) { \
- _listener->_callback(_listener, _section, ##_args); \
- } \
- } \
- break; \
- default: \
- abort(); \
- } \
- } while (0)
-
-/* No need to ref/unref .mr, the FlatRange keeps it alive. */
-#define MEMORY_LISTENER_UPDATE_REGION(fr, as, dir, callback, _args...) \
- MEMORY_LISTENER_CALL(callback, dir, (&(MemoryRegionSection) { \
- .mr = (fr)->mr, \
- .address_space = (as), \
- .offset_within_region = (fr)->offset_in_region, \
- .size = (fr)->addr.size, \
- .offset_within_address_space = int128_get64((fr)->addr.start), \
- .readonly = (fr)->readonly, \
- }), ##_args)
-
-struct CoalescedMemoryRange {
- AddrRange addr;
- QTAILQ_ENTRY(CoalescedMemoryRange) link;
-};
-
-struct MemoryRegionIoeventfd {
- AddrRange addr;
- bool match_data;
- uint64_t data;
- EventNotifier *e;
-};
-
-static bool memory_region_ioeventfd_before(MemoryRegionIoeventfd a,
- MemoryRegionIoeventfd b)
-{
- if (int128_lt(a.addr.start, b.addr.start)) {
- return true;
- } else if (int128_gt(a.addr.start, b.addr.start)) {
- return false;
- } else if (int128_lt(a.addr.size, b.addr.size)) {
- return true;
- } else if (int128_gt(a.addr.size, b.addr.size)) {
- return false;
- } else if (a.match_data < b.match_data) {
- return true;
- } else if (a.match_data > b.match_data) {
- return false;
- } else if (a.match_data) {
- if (a.data < b.data) {
- return true;
- } else if (a.data > b.data) {
- return false;
- }
- }
- if (a.e < b.e) {
- return true;
- } else if (a.e > b.e) {
- return false;
- }
- return false;
-}
-
-static bool memory_region_ioeventfd_equal(MemoryRegionIoeventfd a,
- MemoryRegionIoeventfd b)
-{
- return !memory_region_ioeventfd_before(a, b)
- && !memory_region_ioeventfd_before(b, a);
-}
-
-typedef struct FlatRange FlatRange;
-typedef struct FlatView FlatView;
-
-/* Range of memory in the global map. Addresses are absolute. */
-struct FlatRange {
- MemoryRegion *mr;
- hwaddr offset_in_region;
- AddrRange addr;
- uint8_t dirty_log_mask;
- bool romd_mode;
- bool readonly;
-};
-
-/* Flattened global view of current active memory hierarchy. Kept in sorted
- * order.
- */
-struct FlatView {
- struct rcu_head rcu;
- unsigned ref;
- FlatRange *ranges;
- unsigned nr;
- unsigned nr_allocated;
-};
-
-typedef struct AddressSpaceOps AddressSpaceOps;
-
-#define FOR_EACH_FLAT_RANGE(var, view) \
- for (var = (view)->ranges; var < (view)->ranges + (view)->nr; ++var)
-
-static bool flatrange_equal(FlatRange *a, FlatRange *b)
-{
- return a->mr == b->mr
- && addrrange_equal(a->addr, b->addr)
- && a->offset_in_region == b->offset_in_region
- && a->romd_mode == b->romd_mode
- && a->readonly == b->readonly;
-}
-
-static void flatview_init(FlatView *view)
-{
- view->ref = 1;
- view->ranges = NULL;
- view->nr = 0;
- view->nr_allocated = 0;
-}
-
-/* Insert a range into a given position. Caller is responsible for maintaining
- * sorting order.
- */
-static void flatview_insert(FlatView *view, unsigned pos, FlatRange *range)
-{
- if (view->nr == view->nr_allocated) {
- view->nr_allocated = MAX(2 * view->nr, 10);
- view->ranges = g_realloc(view->ranges,
- view->nr_allocated * sizeof(*view->ranges));
- }
- memmove(view->ranges + pos + 1, view->ranges + pos,
- (view->nr - pos) * sizeof(FlatRange));
- view->ranges[pos] = *range;
- memory_region_ref(range->mr);
- ++view->nr;
-}
-
-static void flatview_destroy(FlatView *view)
-{
- int i;
-
- for (i = 0; i < view->nr; i++) {
- memory_region_unref(view->ranges[i].mr);
- }
- g_free(view->ranges);
- g_free(view);
-}
-
-static void flatview_ref(FlatView *view)
-{
- atomic_inc(&view->ref);
-}
-
-static void flatview_unref(FlatView *view)
-{
- if (atomic_fetch_dec(&view->ref) == 1) {
- flatview_destroy(view);
- }
-}
-
-static bool can_merge(FlatRange *r1, FlatRange *r2)
-{
- return int128_eq(addrrange_end(r1->addr), r2->addr.start)
- && r1->mr == r2->mr
- && int128_eq(int128_add(int128_make64(r1->offset_in_region),
- r1->addr.size),
- int128_make64(r2->offset_in_region))
- && r1->dirty_log_mask == r2->dirty_log_mask
- && r1->romd_mode == r2->romd_mode
- && r1->readonly == r2->readonly;
-}
-
-/* Attempt to simplify a view by merging adjacent ranges */
-static void flatview_simplify(FlatView *view)
-{
- unsigned i, j;
-
- i = 0;
- while (i < view->nr) {
- j = i + 1;
- while (j < view->nr
- && can_merge(&view->ranges[j-1], &view->ranges[j])) {
- int128_addto(&view->ranges[i].addr.size, view->ranges[j].addr.size);
- ++j;
- }
- ++i;
- memmove(&view->ranges[i], &view->ranges[j],
- (view->nr - j) * sizeof(view->ranges[j]));
- view->nr -= j - i;
- }
-}
-
-static bool memory_region_big_endian(MemoryRegion *mr)
-{
-#ifdef TARGET_WORDS_BIGENDIAN
- return mr->ops->endianness != DEVICE_LITTLE_ENDIAN;
-#else
- return mr->ops->endianness == DEVICE_BIG_ENDIAN;
-#endif
-}
-
-static bool memory_region_wrong_endianness(MemoryRegion *mr)
-{
-#ifdef TARGET_WORDS_BIGENDIAN
- return mr->ops->endianness == DEVICE_LITTLE_ENDIAN;
-#else
- return mr->ops->endianness == DEVICE_BIG_ENDIAN;
-#endif
-}
-
-static void adjust_endianness(MemoryRegion *mr, uint64_t *data, unsigned size)
-{
- if (memory_region_wrong_endianness(mr)) {
- switch (size) {
- case 1:
- break;
- case 2:
- *data = bswap16(*data);
- break;
- case 4:
- *data = bswap32(*data);
- break;
- case 8:
- *data = bswap64(*data);
- break;
- default:
- abort();
- }
- }
-}
-
-static hwaddr memory_region_to_absolute_addr(MemoryRegion *mr, hwaddr offset)
-{
- MemoryRegion *root;
- hwaddr abs_addr = offset;
-
- abs_addr += mr->addr;
- for (root = mr; root->container; ) {
- root = root->container;
- abs_addr += root->addr;
- }
-
- return abs_addr;
-}
-
-static int get_cpu_index(void)
-{
- if (current_cpu) {
- return current_cpu->cpu_index;
- }
- return -1;
-}
-
-static MemTxResult memory_region_oldmmio_read_accessor(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned shift,
- uint64_t mask,
- MemTxAttrs attrs)
-{
- uint64_t tmp;
-
- tmp = mr->ops->old_mmio.read[ctz32(size)](mr->opaque, addr);
- if (mr->subpage) {
- trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size);
- } else if (mr == &io_mem_notdirty) {
- /* Accesses to code which has previously been translated into a TB show
- * up in the MMIO path, as accesses to the io_mem_notdirty
- * MemoryRegion. */
- trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size);
- } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) {
- hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
- trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size);
- }
- *value |= (tmp & mask) << shift;
- return MEMTX_OK;
-}
-
-static MemTxResult memory_region_read_accessor(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned shift,
- uint64_t mask,
- MemTxAttrs attrs)
-{
- uint64_t tmp;
-
- tmp = mr->ops->read(mr->opaque, addr, size);
- if (mr->subpage) {
- trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size);
- } else if (mr == &io_mem_notdirty) {
- /* Accesses to code which has previously been translated into a TB show
- * up in the MMIO path, as accesses to the io_mem_notdirty
- * MemoryRegion. */
- trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size);
- } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) {
- hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
- trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size);
- }
- *value |= (tmp & mask) << shift;
- return MEMTX_OK;
-}
-
-static MemTxResult memory_region_read_with_attrs_accessor(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned shift,
- uint64_t mask,
- MemTxAttrs attrs)
-{
- uint64_t tmp = 0;
- MemTxResult r;
-
- r = mr->ops->read_with_attrs(mr->opaque, addr, &tmp, size, attrs);
- if (mr->subpage) {
- trace_memory_region_subpage_read(get_cpu_index(), mr, addr, tmp, size);
- } else if (mr == &io_mem_notdirty) {
- /* Accesses to code which has previously been translated into a TB show
- * up in the MMIO path, as accesses to the io_mem_notdirty
- * MemoryRegion. */
- trace_memory_region_tb_read(get_cpu_index(), addr, tmp, size);
- } else if (TRACE_MEMORY_REGION_OPS_READ_ENABLED) {
- hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
- trace_memory_region_ops_read(get_cpu_index(), mr, abs_addr, tmp, size);
- }
- *value |= (tmp & mask) << shift;
- return r;
-}
-
-static MemTxResult memory_region_oldmmio_write_accessor(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned shift,
- uint64_t mask,
- MemTxAttrs attrs)
-{
- uint64_t tmp;
-
- tmp = (*value >> shift) & mask;
- if (mr->subpage) {
- trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size);
- } else if (mr == &io_mem_notdirty) {
- /* Accesses to code which has previously been translated into a TB show
- * up in the MMIO path, as accesses to the io_mem_notdirty
- * MemoryRegion. */
- trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size);
- } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) {
- hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
- trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size);
- }
- mr->ops->old_mmio.write[ctz32(size)](mr->opaque, addr, tmp);
- return MEMTX_OK;
-}
-
-static MemTxResult memory_region_write_accessor(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned shift,
- uint64_t mask,
- MemTxAttrs attrs)
-{
- uint64_t tmp;
-
- tmp = (*value >> shift) & mask;
- if (mr->subpage) {
- trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size);
- } else if (mr == &io_mem_notdirty) {
- /* Accesses to code which has previously been translated into a TB show
- * up in the MMIO path, as accesses to the io_mem_notdirty
- * MemoryRegion. */
- trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size);
- } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) {
- hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
- trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size);
- }
- mr->ops->write(mr->opaque, addr, tmp, size);
- return MEMTX_OK;
-}
-
-static MemTxResult memory_region_write_with_attrs_accessor(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned shift,
- uint64_t mask,
- MemTxAttrs attrs)
-{
- uint64_t tmp;
-
- tmp = (*value >> shift) & mask;
- if (mr->subpage) {
- trace_memory_region_subpage_write(get_cpu_index(), mr, addr, tmp, size);
- } else if (mr == &io_mem_notdirty) {
- /* Accesses to code which has previously been translated into a TB show
- * up in the MMIO path, as accesses to the io_mem_notdirty
- * MemoryRegion. */
- trace_memory_region_tb_write(get_cpu_index(), addr, tmp, size);
- } else if (TRACE_MEMORY_REGION_OPS_WRITE_ENABLED) {
- hwaddr abs_addr = memory_region_to_absolute_addr(mr, addr);
- trace_memory_region_ops_write(get_cpu_index(), mr, abs_addr, tmp, size);
- }
- return mr->ops->write_with_attrs(mr->opaque, addr, tmp, size, attrs);
-}
-
-static MemTxResult access_with_adjusted_size(hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned access_size_min,
- unsigned access_size_max,
- MemTxResult (*access)(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *value,
- unsigned size,
- unsigned shift,
- uint64_t mask,
- MemTxAttrs attrs),
- MemoryRegion *mr,
- MemTxAttrs attrs)
-{
- uint64_t access_mask;
- unsigned access_size;
- unsigned i;
- MemTxResult r = MEMTX_OK;
-
- if (!access_size_min) {
- access_size_min = 1;
- }
- if (!access_size_max) {
- access_size_max = 4;
- }
-
- /* FIXME: support unaligned access? */
- access_size = MAX(MIN(size, access_size_max), access_size_min);
- access_mask = -1ULL >> (64 - access_size * 8);
- if (memory_region_big_endian(mr)) {
- for (i = 0; i < size; i += access_size) {
- r |= access(mr, addr + i, value, access_size,
- (size - access_size - i) * 8, access_mask, attrs);
- }
- } else {
- for (i = 0; i < size; i += access_size) {
- r |= access(mr, addr + i, value, access_size, i * 8,
- access_mask, attrs);
- }
- }
- return r;
-}
-
-static AddressSpace *memory_region_to_address_space(MemoryRegion *mr)
-{
- AddressSpace *as;
-
- while (mr->container) {
- mr = mr->container;
- }
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- if (mr == as->root) {
- return as;
- }
- }
- return NULL;
-}
-
-/* Render a memory region into the global view. Ranges in @view obscure
- * ranges in @mr.
- */
-static void render_memory_region(FlatView *view,
- MemoryRegion *mr,
- Int128 base,
- AddrRange clip,
- bool readonly)
-{
- MemoryRegion *subregion;
- unsigned i;
- hwaddr offset_in_region;
- Int128 remain;
- Int128 now;
- FlatRange fr;
- AddrRange tmp;
-
- if (!mr->enabled) {
- return;
- }
-
- int128_addto(&base, int128_make64(mr->addr));
- readonly |= mr->readonly;
-
- tmp = addrrange_make(base, mr->size);
-
- if (!addrrange_intersects(tmp, clip)) {
- return;
- }
-
- clip = addrrange_intersection(tmp, clip);
-
- if (mr->alias) {
- int128_subfrom(&base, int128_make64(mr->alias->addr));
- int128_subfrom(&base, int128_make64(mr->alias_offset));
- render_memory_region(view, mr->alias, base, clip, readonly);
- return;
- }
-
- /* Render subregions in priority order. */
- QTAILQ_FOREACH(subregion, &mr->subregions, subregions_link) {
- render_memory_region(view, subregion, base, clip, readonly);
- }
-
- if (!mr->terminates) {
- return;
- }
-
- offset_in_region = int128_get64(int128_sub(clip.start, base));
- base = clip.start;
- remain = clip.size;
-
- fr.mr = mr;
- fr.dirty_log_mask = memory_region_get_dirty_log_mask(mr);
- fr.romd_mode = mr->romd_mode;
- fr.readonly = readonly;
-
- /* Render the region itself into any gaps left by the current view. */
- for (i = 0; i < view->nr && int128_nz(remain); ++i) {
- if (int128_ge(base, addrrange_end(view->ranges[i].addr))) {
- continue;
- }
- if (int128_lt(base, view->ranges[i].addr.start)) {
- now = int128_min(remain,
- int128_sub(view->ranges[i].addr.start, base));
- fr.offset_in_region = offset_in_region;
- fr.addr = addrrange_make(base, now);
- flatview_insert(view, i, &fr);
- ++i;
- int128_addto(&base, now);
- offset_in_region += int128_get64(now);
- int128_subfrom(&remain, now);
- }
- now = int128_sub(int128_min(int128_add(base, remain),
- addrrange_end(view->ranges[i].addr)),
- base);
- int128_addto(&base, now);
- offset_in_region += int128_get64(now);
- int128_subfrom(&remain, now);
- }
- if (int128_nz(remain)) {
- fr.offset_in_region = offset_in_region;
- fr.addr = addrrange_make(base, remain);
- flatview_insert(view, i, &fr);
- }
-}
-
-/* Render a memory topology into a list of disjoint absolute ranges. */
-static FlatView *generate_memory_topology(MemoryRegion *mr)
-{
- FlatView *view;
-
- view = g_new(FlatView, 1);
- flatview_init(view);
-
- if (mr) {
- render_memory_region(view, mr, int128_zero(),
- addrrange_make(int128_zero(), int128_2_64()), false);
- }
- flatview_simplify(view);
-
- return view;
-}
-
-static void address_space_add_del_ioeventfds(AddressSpace *as,
- MemoryRegionIoeventfd *fds_new,
- unsigned fds_new_nb,
- MemoryRegionIoeventfd *fds_old,
- unsigned fds_old_nb)
-{
- unsigned iold, inew;
- MemoryRegionIoeventfd *fd;
- MemoryRegionSection section;
-
- /* Generate a symmetric difference of the old and new fd sets, adding
- * and deleting as necessary.
- */
-
- iold = inew = 0;
- while (iold < fds_old_nb || inew < fds_new_nb) {
- if (iold < fds_old_nb
- && (inew == fds_new_nb
- || memory_region_ioeventfd_before(fds_old[iold],
- fds_new[inew]))) {
- fd = &fds_old[iold];
- section = (MemoryRegionSection) {
- .address_space = as,
- .offset_within_address_space = int128_get64(fd->addr.start),
- .size = fd->addr.size,
- };
- MEMORY_LISTENER_CALL(eventfd_del, Forward, &section,
- fd->match_data, fd->data, fd->e);
- ++iold;
- } else if (inew < fds_new_nb
- && (iold == fds_old_nb
- || memory_region_ioeventfd_before(fds_new[inew],
- fds_old[iold]))) {
- fd = &fds_new[inew];
- section = (MemoryRegionSection) {
- .address_space = as,
- .offset_within_address_space = int128_get64(fd->addr.start),
- .size = fd->addr.size,
- };
- MEMORY_LISTENER_CALL(eventfd_add, Reverse, &section,
- fd->match_data, fd->data, fd->e);
- ++inew;
- } else {
- ++iold;
- ++inew;
- }
- }
-}
-
-static FlatView *address_space_get_flatview(AddressSpace *as)
-{
- FlatView *view;
-
- rcu_read_lock();
- view = atomic_rcu_read(&as->current_map);
- flatview_ref(view);
- rcu_read_unlock();
- return view;
-}
-
-static void address_space_update_ioeventfds(AddressSpace *as)
-{
- FlatView *view;
- FlatRange *fr;
- unsigned ioeventfd_nb = 0;
- MemoryRegionIoeventfd *ioeventfds = NULL;
- AddrRange tmp;
- unsigned i;
-
- view = address_space_get_flatview(as);
- FOR_EACH_FLAT_RANGE(fr, view) {
- for (i = 0; i < fr->mr->ioeventfd_nb; ++i) {
- tmp = addrrange_shift(fr->mr->ioeventfds[i].addr,
- int128_sub(fr->addr.start,
- int128_make64(fr->offset_in_region)));
- if (addrrange_intersects(fr->addr, tmp)) {
- ++ioeventfd_nb;
- ioeventfds = g_realloc(ioeventfds,
- ioeventfd_nb * sizeof(*ioeventfds));
- ioeventfds[ioeventfd_nb-1] = fr->mr->ioeventfds[i];
- ioeventfds[ioeventfd_nb-1].addr = tmp;
- }
- }
- }
-
- address_space_add_del_ioeventfds(as, ioeventfds, ioeventfd_nb,
- as->ioeventfds, as->ioeventfd_nb);
-
- g_free(as->ioeventfds);
- as->ioeventfds = ioeventfds;
- as->ioeventfd_nb = ioeventfd_nb;
- flatview_unref(view);
-}
-
-static void address_space_update_topology_pass(AddressSpace *as,
- const FlatView *old_view,
- const FlatView *new_view,
- bool adding)
-{
- unsigned iold, inew;
- FlatRange *frold, *frnew;
-
- /* Generate a symmetric difference of the old and new memory maps.
- * Kill ranges in the old map, and instantiate ranges in the new map.
- */
- iold = inew = 0;
- while (iold < old_view->nr || inew < new_view->nr) {
- if (iold < old_view->nr) {
- frold = &old_view->ranges[iold];
- } else {
- frold = NULL;
- }
- if (inew < new_view->nr) {
- frnew = &new_view->ranges[inew];
- } else {
- frnew = NULL;
- }
-
- if (frold
- && (!frnew
- || int128_lt(frold->addr.start, frnew->addr.start)
- || (int128_eq(frold->addr.start, frnew->addr.start)
- && !flatrange_equal(frold, frnew)))) {
- /* In old but not in new, or in both but attributes changed. */
-
- if (!adding) {
- MEMORY_LISTENER_UPDATE_REGION(frold, as, Reverse, region_del);
- }
-
- ++iold;
- } else if (frold && frnew && flatrange_equal(frold, frnew)) {
- /* In both and unchanged (except logging may have changed) */
-
- if (adding) {
- MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_nop);
- if (frnew->dirty_log_mask & ~frold->dirty_log_mask) {
- MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, log_start,
- frold->dirty_log_mask,
- frnew->dirty_log_mask);
- }
- if (frold->dirty_log_mask & ~frnew->dirty_log_mask) {
- MEMORY_LISTENER_UPDATE_REGION(frnew, as, Reverse, log_stop,
- frold->dirty_log_mask,
- frnew->dirty_log_mask);
- }
- }
-
- ++iold;
- ++inew;
- } else {
- /* In new */
-
- if (adding) {
- MEMORY_LISTENER_UPDATE_REGION(frnew, as, Forward, region_add);
- }
-
- ++inew;
- }
- }
-}
-
-
-static void address_space_update_topology(AddressSpace *as)
-{
- FlatView *old_view = address_space_get_flatview(as);
- FlatView *new_view = generate_memory_topology(as->root);
-
- address_space_update_topology_pass(as, old_view, new_view, false);
- address_space_update_topology_pass(as, old_view, new_view, true);
-
- /* Writes are protected by the BQL. */
- atomic_rcu_set(&as->current_map, new_view);
- call_rcu(old_view, flatview_unref, rcu);
-
- /* Note that all the old MemoryRegions are still alive up to this
- * point. This relieves most MemoryListeners from the need to
- * ref/unref the MemoryRegions they get---unless they use them
- * outside the iothread mutex, in which case precise reference
- * counting is necessary.
- */
- flatview_unref(old_view);
-
- address_space_update_ioeventfds(as);
-}
-
-void memory_region_transaction_begin(void)
-{
- qemu_flush_coalesced_mmio_buffer();
- ++memory_region_transaction_depth;
-}
-
-static void memory_region_clear_pending(void)
-{
- memory_region_update_pending = false;
- ioeventfd_update_pending = false;
-}
-
-void memory_region_transaction_commit(void)
-{
- AddressSpace *as;
-
- assert(memory_region_transaction_depth);
- --memory_region_transaction_depth;
- if (!memory_region_transaction_depth) {
- if (memory_region_update_pending) {
- MEMORY_LISTENER_CALL_GLOBAL(begin, Forward);
-
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- address_space_update_topology(as);
- }
-
- MEMORY_LISTENER_CALL_GLOBAL(commit, Forward);
- } else if (ioeventfd_update_pending) {
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- address_space_update_ioeventfds(as);
- }
- }
- memory_region_clear_pending();
- }
-}
-
-static void memory_region_destructor_none(MemoryRegion *mr)
-{
-}
-
-static void memory_region_destructor_ram(MemoryRegion *mr)
-{
- qemu_ram_free(mr->ram_block);
-}
-
-static void memory_region_destructor_rom_device(MemoryRegion *mr)
-{
- qemu_ram_free(mr->ram_block);
-}
-
-static bool memory_region_need_escape(char c)
-{
- return c == '/' || c == '[' || c == '\\' || c == ']';
-}
-
-static char *memory_region_escape_name(const char *name)
-{
- const char *p;
- char *escaped, *q;
- uint8_t c;
- size_t bytes = 0;
-
- for (p = name; *p; p++) {
- bytes += memory_region_need_escape(*p) ? 4 : 1;
- }
- if (bytes == p - name) {
- return g_memdup(name, bytes + 1);
- }
-
- escaped = g_malloc(bytes + 1);
- for (p = name, q = escaped; *p; p++) {
- c = *p;
- if (unlikely(memory_region_need_escape(c))) {
- *q++ = '\\';
- *q++ = 'x';
- *q++ = "0123456789abcdef"[c >> 4];
- c = "0123456789abcdef"[c & 15];
- }
- *q++ = c;
- }
- *q = 0;
- return escaped;
-}
-
-void memory_region_init(MemoryRegion *mr,
- Object *owner,
- const char *name,
- uint64_t size)
-{
- object_initialize(mr, sizeof(*mr), TYPE_MEMORY_REGION);
- mr->size = int128_make64(size);
- if (size == UINT64_MAX) {
- mr->size = int128_2_64();
- }
- mr->name = g_strdup(name);
- mr->owner = owner;
- mr->ram_block = NULL;
-
- if (name) {
- char *escaped_name = memory_region_escape_name(name);
- char *name_array = g_strdup_printf("%s[*]", escaped_name);
-
- if (!owner) {
- owner = container_get(qdev_get_machine(), "/unattached");
- }
-
- object_property_add_child(owner, name_array, OBJECT(mr), &error_abort);
- object_unref(OBJECT(mr));
- g_free(name_array);
- g_free(escaped_name);
- }
-}
-
-static void memory_region_get_addr(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
- uint64_t value = mr->addr;
-
- visit_type_uint64(v, name, &value, errp);
-}
-
-static void memory_region_get_container(Object *obj, Visitor *v,
- const char *name, void *opaque,
- Error **errp)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
- gchar *path = (gchar *)"";
-
- if (mr->container) {
- path = object_get_canonical_path(OBJECT(mr->container));
- }
- visit_type_str(v, name, &path, errp);
- if (mr->container) {
- g_free(path);
- }
-}
-
-static Object *memory_region_resolve_container(Object *obj, void *opaque,
- const char *part)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
-
- return OBJECT(mr->container);
-}
-
-static void memory_region_get_priority(Object *obj, Visitor *v,
- const char *name, void *opaque,
- Error **errp)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
- int32_t value = mr->priority;
-
- visit_type_int32(v, name, &value, errp);
-}
-
-static bool memory_region_get_may_overlap(Object *obj, Error **errp)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
-
- return mr->may_overlap;
-}
-
-static void memory_region_get_size(Object *obj, Visitor *v, const char *name,
- void *opaque, Error **errp)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
- uint64_t value = memory_region_size(mr);
-
- visit_type_uint64(v, name, &value, errp);
-}
-
-static void memory_region_initfn(Object *obj)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
- ObjectProperty *op;
-
- mr->ops = &unassigned_mem_ops;
- mr->enabled = true;
- mr->romd_mode = true;
- mr->global_locking = true;
- mr->destructor = memory_region_destructor_none;
- QTAILQ_INIT(&mr->subregions);
- QTAILQ_INIT(&mr->coalesced);
-
- op = object_property_add(OBJECT(mr), "container",
- "link<" TYPE_MEMORY_REGION ">",
- memory_region_get_container,
- NULL, /* memory_region_set_container */
- NULL, NULL, &error_abort);
- op->resolve = memory_region_resolve_container;
-
- object_property_add(OBJECT(mr), "addr", "uint64",
- memory_region_get_addr,
- NULL, /* memory_region_set_addr */
- NULL, NULL, &error_abort);
- object_property_add(OBJECT(mr), "priority", "uint32",
- memory_region_get_priority,
- NULL, /* memory_region_set_priority */
- NULL, NULL, &error_abort);
- object_property_add_bool(OBJECT(mr), "may-overlap",
- memory_region_get_may_overlap,
- NULL, /* memory_region_set_may_overlap */
- &error_abort);
- object_property_add(OBJECT(mr), "size", "uint64",
- memory_region_get_size,
- NULL, /* memory_region_set_size, */
- NULL, NULL, &error_abort);
-}
-
-static uint64_t unassigned_mem_read(void *opaque, hwaddr addr,
- unsigned size)
-{
-#ifdef DEBUG_UNASSIGNED
- printf("Unassigned mem read " TARGET_FMT_plx "\n", addr);
-#endif
- if (current_cpu != NULL) {
- cpu_unassigned_access(current_cpu, addr, false, false, 0, size);
- }
- return 0;
-}
-
-static void unassigned_mem_write(void *opaque, hwaddr addr,
- uint64_t val, unsigned size)
-{
-#ifdef DEBUG_UNASSIGNED
- printf("Unassigned mem write " TARGET_FMT_plx " = 0x%"PRIx64"\n", addr, val);
-#endif
- if (current_cpu != NULL) {
- cpu_unassigned_access(current_cpu, addr, true, false, 0, size);
- }
-}
-
-static bool unassigned_mem_accepts(void *opaque, hwaddr addr,
- unsigned size, bool is_write)
-{
- return false;
-}
-
-const MemoryRegionOps unassigned_mem_ops = {
- .valid.accepts = unassigned_mem_accepts,
- .endianness = DEVICE_NATIVE_ENDIAN,
-};
-
-bool memory_region_access_valid(MemoryRegion *mr,
- hwaddr addr,
- unsigned size,
- bool is_write)
-{
- int access_size_min, access_size_max;
- int access_size, i;
-
- if (!mr->ops->valid.unaligned && (addr & (size - 1))) {
- return false;
- }
-
- if (!mr->ops->valid.accepts) {
- return true;
- }
-
- access_size_min = mr->ops->valid.min_access_size;
- if (!mr->ops->valid.min_access_size) {
- access_size_min = 1;
- }
-
- access_size_max = mr->ops->valid.max_access_size;
- if (!mr->ops->valid.max_access_size) {
- access_size_max = 4;
- }
-
- access_size = MAX(MIN(size, access_size_max), access_size_min);
- for (i = 0; i < size; i += access_size) {
- if (!mr->ops->valid.accepts(mr->opaque, addr + i, access_size,
- is_write)) {
- return false;
- }
- }
-
- return true;
-}
-
-static MemTxResult memory_region_dispatch_read1(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *pval,
- unsigned size,
- MemTxAttrs attrs)
-{
- *pval = 0;
-
- if (mr->ops->read) {
- return access_with_adjusted_size(addr, pval, size,
- mr->ops->impl.min_access_size,
- mr->ops->impl.max_access_size,
- memory_region_read_accessor,
- mr, attrs);
- } else if (mr->ops->read_with_attrs) {
- return access_with_adjusted_size(addr, pval, size,
- mr->ops->impl.min_access_size,
- mr->ops->impl.max_access_size,
- memory_region_read_with_attrs_accessor,
- mr, attrs);
- } else {
- return access_with_adjusted_size(addr, pval, size, 1, 4,
- memory_region_oldmmio_read_accessor,
- mr, attrs);
- }
-}
-
-MemTxResult memory_region_dispatch_read(MemoryRegion *mr,
- hwaddr addr,
- uint64_t *pval,
- unsigned size,
- MemTxAttrs attrs)
-{
- MemTxResult r;
-
- if (!memory_region_access_valid(mr, addr, size, false)) {
- *pval = unassigned_mem_read(mr, addr, size);
- return MEMTX_DECODE_ERROR;
- }
-
- r = memory_region_dispatch_read1(mr, addr, pval, size, attrs);
- adjust_endianness(mr, pval, size);
- return r;
-}
-
-/* Return true if an eventfd was signalled */
-static bool memory_region_dispatch_write_eventfds(MemoryRegion *mr,
- hwaddr addr,
- uint64_t data,
- unsigned size,
- MemTxAttrs attrs)
-{
- MemoryRegionIoeventfd ioeventfd = {
- .addr = addrrange_make(int128_make64(addr), int128_make64(size)),
- .data = data,
- };
- unsigned i;
-
- for (i = 0; i < mr->ioeventfd_nb; i++) {
- ioeventfd.match_data = mr->ioeventfds[i].match_data;
- ioeventfd.e = mr->ioeventfds[i].e;
-
- if (memory_region_ioeventfd_equal(ioeventfd, mr->ioeventfds[i])) {
- event_notifier_set(ioeventfd.e);
- return true;
- }
- }
-
- return false;
-}
-
-MemTxResult memory_region_dispatch_write(MemoryRegion *mr,
- hwaddr addr,
- uint64_t data,
- unsigned size,
- MemTxAttrs attrs)
-{
- if (!memory_region_access_valid(mr, addr, size, true)) {
- unassigned_mem_write(mr, addr, data, size);
- return MEMTX_DECODE_ERROR;
- }
-
- adjust_endianness(mr, &data, size);
-
- if ((!kvm_eventfds_enabled()) &&
- memory_region_dispatch_write_eventfds(mr, addr, data, size, attrs)) {
- return MEMTX_OK;
- }
-
- if (mr->ops->write) {
- return access_with_adjusted_size(addr, &data, size,
- mr->ops->impl.min_access_size,
- mr->ops->impl.max_access_size,
- memory_region_write_accessor, mr,
- attrs);
- } else if (mr->ops->write_with_attrs) {
- return
- access_with_adjusted_size(addr, &data, size,
- mr->ops->impl.min_access_size,
- mr->ops->impl.max_access_size,
- memory_region_write_with_attrs_accessor,
- mr, attrs);
- } else {
- return access_with_adjusted_size(addr, &data, size, 1, 4,
- memory_region_oldmmio_write_accessor,
- mr, attrs);
- }
-}
-
-void memory_region_init_io(MemoryRegion *mr,
- Object *owner,
- const MemoryRegionOps *ops,
- void *opaque,
- const char *name,
- uint64_t size)
-{
- memory_region_init(mr, owner, name, size);
- mr->ops = ops ? ops : &unassigned_mem_ops;
- mr->opaque = opaque;
- mr->terminates = true;
-}
-
-void memory_region_init_ram(MemoryRegion *mr,
- Object *owner,
- const char *name,
- uint64_t size,
- Error **errp)
-{
- memory_region_init(mr, owner, name, size);
- mr->ram = true;
- mr->terminates = true;
- mr->destructor = memory_region_destructor_ram;
- mr->ram_block = qemu_ram_alloc(size, mr, errp);
- mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
-}
-
-void memory_region_init_resizeable_ram(MemoryRegion *mr,
- Object *owner,
- const char *name,
- uint64_t size,
- uint64_t max_size,
- void (*resized)(const char*,
- uint64_t length,
- void *host),
- Error **errp)
-{
- memory_region_init(mr, owner, name, size);
- mr->ram = true;
- mr->terminates = true;
- mr->destructor = memory_region_destructor_ram;
- mr->ram_block = qemu_ram_alloc_resizeable(size, max_size, resized,
- mr, errp);
- mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
-}
-
-#ifdef __linux__
-void memory_region_init_ram_from_file(MemoryRegion *mr,
- struct Object *owner,
- const char *name,
- uint64_t size,
- bool share,
- const char *path,
- Error **errp)
-{
- memory_region_init(mr, owner, name, size);
- mr->ram = true;
- mr->terminates = true;
- mr->destructor = memory_region_destructor_ram;
- mr->ram_block = qemu_ram_alloc_from_file(size, mr, share, path, errp);
- mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
-}
-#endif
-
-void memory_region_init_ram_ptr(MemoryRegion *mr,
- Object *owner,
- const char *name,
- uint64_t size,
- void *ptr)
-{
- memory_region_init(mr, owner, name, size);
- mr->ram = true;
- mr->terminates = true;
- mr->destructor = memory_region_destructor_ram;
- mr->dirty_log_mask = tcg_enabled() ? (1 << DIRTY_MEMORY_CODE) : 0;
-
- /* qemu_ram_alloc_from_ptr cannot fail with ptr != NULL. */
- assert(ptr != NULL);
- mr->ram_block = qemu_ram_alloc_from_ptr(size, ptr, mr, &error_fatal);
-}
-
-void memory_region_set_skip_dump(MemoryRegion *mr)
-{
- mr->skip_dump = true;
-}
-
-void memory_region_init_alias(MemoryRegion *mr,
- Object *owner,
- const char *name,
- MemoryRegion *orig,
- hwaddr offset,
- uint64_t size)
-{
- memory_region_init(mr, owner, name, size);
- mr->alias = orig;
- mr->alias_offset = offset;
-}
-
-void memory_region_init_rom_device(MemoryRegion *mr,
- Object *owner,
- const MemoryRegionOps *ops,
- void *opaque,
- const char *name,
- uint64_t size,
- Error **errp)
-{
- memory_region_init(mr, owner, name, size);
- mr->ops = ops;
- mr->opaque = opaque;
- mr->terminates = true;
- mr->rom_device = true;
- mr->destructor = memory_region_destructor_rom_device;
- mr->ram_block = qemu_ram_alloc(size, mr, errp);
-}
-
-void memory_region_init_iommu(MemoryRegion *mr,
- Object *owner,
- const MemoryRegionIOMMUOps *ops,
- const char *name,
- uint64_t size)
-{
- memory_region_init(mr, owner, name, size);
- mr->iommu_ops = ops,
- mr->terminates = true; /* then re-forwards */
- notifier_list_init(&mr->iommu_notify);
-}
-
-static void memory_region_finalize(Object *obj)
-{
- MemoryRegion *mr = MEMORY_REGION(obj);
-
- assert(!mr->container);
-
- /* We know the region is not visible in any address space (it
- * does not have a container and cannot be a root either because
- * it has no references, so we can blindly clear mr->enabled.
- * memory_region_set_enabled instead could trigger a transaction
- * and cause an infinite loop.
- */
- mr->enabled = false;
- memory_region_transaction_begin();
- while (!QTAILQ_EMPTY(&mr->subregions)) {
- MemoryRegion *subregion = QTAILQ_FIRST(&mr->subregions);
- memory_region_del_subregion(mr, subregion);
- }
- memory_region_transaction_commit();
-
- mr->destructor(mr);
- memory_region_clear_coalescing(mr);
- g_free((char *)mr->name);
- g_free(mr->ioeventfds);
-}
-
-Object *memory_region_owner(MemoryRegion *mr)
-{
- Object *obj = OBJECT(mr);
- return obj->parent;
-}
-
-void memory_region_ref(MemoryRegion *mr)
-{
- /* MMIO callbacks most likely will access data that belongs
- * to the owner, hence the need to ref/unref the owner whenever
- * the memory region is in use.
- *
- * The memory region is a child of its owner. As long as the
- * owner doesn't call unparent itself on the memory region,
- * ref-ing the owner will also keep the memory region alive.
- * Memory regions without an owner are supposed to never go away;
- * we do not ref/unref them because it slows down DMA sensibly.
- */
- if (mr && mr->owner) {
- object_ref(mr->owner);
- }
-}
-
-void memory_region_unref(MemoryRegion *mr)
-{
- if (mr && mr->owner) {
- object_unref(mr->owner);
- }
-}
-
-uint64_t memory_region_size(MemoryRegion *mr)
-{
- if (int128_eq(mr->size, int128_2_64())) {
- return UINT64_MAX;
- }
- return int128_get64(mr->size);
-}
-
-const char *memory_region_name(const MemoryRegion *mr)
-{
- if (!mr->name) {
- ((MemoryRegion *)mr)->name =
- object_get_canonical_path_component(OBJECT(mr));
- }
- return mr->name;
-}
-
-bool memory_region_is_skip_dump(MemoryRegion *mr)
-{
- return mr->skip_dump;
-}
-
-uint8_t memory_region_get_dirty_log_mask(MemoryRegion *mr)
-{
- uint8_t mask = mr->dirty_log_mask;
- if (global_dirty_log) {
- mask |= (1 << DIRTY_MEMORY_MIGRATION);
- }
- return mask;
-}
-
-bool memory_region_is_logging(MemoryRegion *mr, uint8_t client)
-{
- return memory_region_get_dirty_log_mask(mr) & (1 << client);
-}
-
-void memory_region_register_iommu_notifier(MemoryRegion *mr, Notifier *n)
-{
- notifier_list_add(&mr->iommu_notify, n);
-}
-
-void memory_region_iommu_replay(MemoryRegion *mr, Notifier *n,
- hwaddr granularity, bool is_write)
-{
- hwaddr addr;
- IOMMUTLBEntry iotlb;
-
- for (addr = 0; addr < memory_region_size(mr); addr += granularity) {
- iotlb = mr->iommu_ops->translate(mr, addr, is_write);
- if (iotlb.perm != IOMMU_NONE) {
- n->notify(n, &iotlb);
- }
-
- /* if (2^64 - MR size) < granularity, it's possible to get an
- * infinite loop here. This should catch such a wraparound */
- if ((addr + granularity) < addr) {
- break;
- }
- }
-}
-
-void memory_region_unregister_iommu_notifier(Notifier *n)
-{
- notifier_remove(n);
-}
-
-void memory_region_notify_iommu(MemoryRegion *mr,
- IOMMUTLBEntry entry)
-{
- assert(memory_region_is_iommu(mr));
- notifier_list_notify(&mr->iommu_notify, &entry);
-}
-
-void memory_region_set_log(MemoryRegion *mr, bool log, unsigned client)
-{
- uint8_t mask = 1 << client;
- uint8_t old_logging;
-
- assert(client == DIRTY_MEMORY_VGA);
- old_logging = mr->vga_logging_count;
- mr->vga_logging_count += log ? 1 : -1;
- if (!!old_logging == !!mr->vga_logging_count) {
- return;
- }
-
- memory_region_transaction_begin();
- mr->dirty_log_mask = (mr->dirty_log_mask & ~mask) | (log * mask);
- memory_region_update_pending |= mr->enabled;
- memory_region_transaction_commit();
-}
-
-bool memory_region_get_dirty(MemoryRegion *mr, hwaddr addr,
- hwaddr size, unsigned client)
-{
- assert(mr->ram_block);
- return cpu_physical_memory_get_dirty(memory_region_get_ram_addr(mr) + addr,
- size, client);
-}
-
-void memory_region_set_dirty(MemoryRegion *mr, hwaddr addr,
- hwaddr size)
-{
- assert(mr->ram_block);
- cpu_physical_memory_set_dirty_range(memory_region_get_ram_addr(mr) + addr,
- size,
- memory_region_get_dirty_log_mask(mr));
-}
-
-bool memory_region_test_and_clear_dirty(MemoryRegion *mr, hwaddr addr,
- hwaddr size, unsigned client)
-{
- assert(mr->ram_block);
- return cpu_physical_memory_test_and_clear_dirty(
- memory_region_get_ram_addr(mr) + addr, size, client);
-}
-
-
-void memory_region_sync_dirty_bitmap(MemoryRegion *mr)
-{
- AddressSpace *as;
- FlatRange *fr;
-
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- FlatView *view = address_space_get_flatview(as);
- FOR_EACH_FLAT_RANGE(fr, view) {
- if (fr->mr == mr) {
- MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync);
- }
- }
- flatview_unref(view);
- }
-}
-
-void memory_region_set_readonly(MemoryRegion *mr, bool readonly)
-{
- if (mr->readonly != readonly) {
- memory_region_transaction_begin();
- mr->readonly = readonly;
- memory_region_update_pending |= mr->enabled;
- memory_region_transaction_commit();
- }
-}
-
-void memory_region_rom_device_set_romd(MemoryRegion *mr, bool romd_mode)
-{
- if (mr->romd_mode != romd_mode) {
- memory_region_transaction_begin();
- mr->romd_mode = romd_mode;
- memory_region_update_pending |= mr->enabled;
- memory_region_transaction_commit();
- }
-}
-
-void memory_region_reset_dirty(MemoryRegion *mr, hwaddr addr,
- hwaddr size, unsigned client)
-{
- assert(mr->ram_block);
- cpu_physical_memory_test_and_clear_dirty(
- memory_region_get_ram_addr(mr) + addr, size, client);
-}
-
-int memory_region_get_fd(MemoryRegion *mr)
-{
- if (mr->alias) {
- return memory_region_get_fd(mr->alias);
- }
-
- assert(mr->ram_block);
-
- return qemu_get_ram_fd(memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK);
-}
-
-void *memory_region_get_ram_ptr(MemoryRegion *mr)
-{
- void *ptr;
- uint64_t offset = 0;
-
- rcu_read_lock();
- while (mr->alias) {
- offset += mr->alias_offset;
- mr = mr->alias;
- }
- assert(mr->ram_block);
- ptr = qemu_get_ram_ptr(mr->ram_block,
- memory_region_get_ram_addr(mr) & TARGET_PAGE_MASK);
- rcu_read_unlock();
-
- return ptr + offset;
-}
-
-ram_addr_t memory_region_get_ram_addr(MemoryRegion *mr)
-{
- return mr->ram_block ? mr->ram_block->offset : RAM_ADDR_INVALID;
-}
-
-void memory_region_ram_resize(MemoryRegion *mr, ram_addr_t newsize, Error **errp)
-{
- assert(mr->ram_block);
-
- qemu_ram_resize(memory_region_get_ram_addr(mr), newsize, errp);
-}
-
-static void memory_region_update_coalesced_range_as(MemoryRegion *mr, AddressSpace *as)
-{
- FlatView *view;
- FlatRange *fr;
- CoalescedMemoryRange *cmr;
- AddrRange tmp;
- MemoryRegionSection section;
-
- view = address_space_get_flatview(as);
- FOR_EACH_FLAT_RANGE(fr, view) {
- if (fr->mr == mr) {
- section = (MemoryRegionSection) {
- .address_space = as,
- .offset_within_address_space = int128_get64(fr->addr.start),
- .size = fr->addr.size,
- };
-
- MEMORY_LISTENER_CALL(coalesced_mmio_del, Reverse, &section,
- int128_get64(fr->addr.start),
- int128_get64(fr->addr.size));
- QTAILQ_FOREACH(cmr, &mr->coalesced, link) {
- tmp = addrrange_shift(cmr->addr,
- int128_sub(fr->addr.start,
- int128_make64(fr->offset_in_region)));
- if (!addrrange_intersects(tmp, fr->addr)) {
- continue;
- }
- tmp = addrrange_intersection(tmp, fr->addr);
- MEMORY_LISTENER_CALL(coalesced_mmio_add, Forward, &section,
- int128_get64(tmp.start),
- int128_get64(tmp.size));
- }
- }
- }
- flatview_unref(view);
-}
-
-static void memory_region_update_coalesced_range(MemoryRegion *mr)
-{
- AddressSpace *as;
-
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- memory_region_update_coalesced_range_as(mr, as);
- }
-}
-
-void memory_region_set_coalescing(MemoryRegion *mr)
-{
- memory_region_clear_coalescing(mr);
- memory_region_add_coalescing(mr, 0, int128_get64(mr->size));
-}
-
-void memory_region_add_coalescing(MemoryRegion *mr,
- hwaddr offset,
- uint64_t size)
-{
- CoalescedMemoryRange *cmr = g_malloc(sizeof(*cmr));
-
- cmr->addr = addrrange_make(int128_make64(offset), int128_make64(size));
- QTAILQ_INSERT_TAIL(&mr->coalesced, cmr, link);
- memory_region_update_coalesced_range(mr);
- memory_region_set_flush_coalesced(mr);
-}
-
-void memory_region_clear_coalescing(MemoryRegion *mr)
-{
- CoalescedMemoryRange *cmr;
- bool updated = false;
-
- qemu_flush_coalesced_mmio_buffer();
- mr->flush_coalesced_mmio = false;
-
- while (!QTAILQ_EMPTY(&mr->coalesced)) {
- cmr = QTAILQ_FIRST(&mr->coalesced);
- QTAILQ_REMOVE(&mr->coalesced, cmr, link);
- g_free(cmr);
- updated = true;
- }
-
- if (updated) {
- memory_region_update_coalesced_range(mr);
- }
-}
-
-void memory_region_set_flush_coalesced(MemoryRegion *mr)
-{
- mr->flush_coalesced_mmio = true;
-}
-
-void memory_region_clear_flush_coalesced(MemoryRegion *mr)
-{
- qemu_flush_coalesced_mmio_buffer();
- if (QTAILQ_EMPTY(&mr->coalesced)) {
- mr->flush_coalesced_mmio = false;
- }
-}
-
-void memory_region_set_global_locking(MemoryRegion *mr)
-{
- mr->global_locking = true;
-}
-
-void memory_region_clear_global_locking(MemoryRegion *mr)
-{
- mr->global_locking = false;
-}
-
-static bool userspace_eventfd_warning;
-
-void memory_region_add_eventfd(MemoryRegion *mr,
- hwaddr addr,
- unsigned size,
- bool match_data,
- uint64_t data,
- EventNotifier *e)
-{
- MemoryRegionIoeventfd mrfd = {
- .addr.start = int128_make64(addr),
- .addr.size = int128_make64(size),
- .match_data = match_data,
- .data = data,
- .e = e,
- };
- unsigned i;
-
- if (kvm_enabled() && (!(kvm_eventfds_enabled() ||
- userspace_eventfd_warning))) {
- userspace_eventfd_warning = true;
- error_report("Using eventfd without MMIO binding in KVM. "
- "Suboptimal performance expected");
- }
-
- if (size) {
- adjust_endianness(mr, &mrfd.data, size);
- }
- memory_region_transaction_begin();
- for (i = 0; i < mr->ioeventfd_nb; ++i) {
- if (memory_region_ioeventfd_before(mrfd, mr->ioeventfds[i])) {
- break;
- }
- }
- ++mr->ioeventfd_nb;
- mr->ioeventfds = g_realloc(mr->ioeventfds,
- sizeof(*mr->ioeventfds) * mr->ioeventfd_nb);
- memmove(&mr->ioeventfds[i+1], &mr->ioeventfds[i],
- sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb-1 - i));
- mr->ioeventfds[i] = mrfd;
- ioeventfd_update_pending |= mr->enabled;
- memory_region_transaction_commit();
-}
-
-void memory_region_del_eventfd(MemoryRegion *mr,
- hwaddr addr,
- unsigned size,
- bool match_data,
- uint64_t data,
- EventNotifier *e)
-{
- MemoryRegionIoeventfd mrfd = {
- .addr.start = int128_make64(addr),
- .addr.size = int128_make64(size),
- .match_data = match_data,
- .data = data,
- .e = e,
- };
- unsigned i;
-
- if (size) {
- adjust_endianness(mr, &mrfd.data, size);
- }
- memory_region_transaction_begin();
- for (i = 0; i < mr->ioeventfd_nb; ++i) {
- if (memory_region_ioeventfd_equal(mrfd, mr->ioeventfds[i])) {
- break;
- }
- }
- assert(i != mr->ioeventfd_nb);
- memmove(&mr->ioeventfds[i], &mr->ioeventfds[i+1],
- sizeof(*mr->ioeventfds) * (mr->ioeventfd_nb - (i+1)));
- --mr->ioeventfd_nb;
- mr->ioeventfds = g_realloc(mr->ioeventfds,
- sizeof(*mr->ioeventfds)*mr->ioeventfd_nb + 1);
- ioeventfd_update_pending |= mr->enabled;
- memory_region_transaction_commit();
-}
-
-static void memory_region_update_container_subregions(MemoryRegion *subregion)
-{
- hwaddr offset = subregion->addr;
- MemoryRegion *mr = subregion->container;
- MemoryRegion *other;
-
- memory_region_transaction_begin();
-
- memory_region_ref(subregion);
- QTAILQ_FOREACH(other, &mr->subregions, subregions_link) {
- if (subregion->may_overlap || other->may_overlap) {
- continue;
- }
- if (int128_ge(int128_make64(offset),
- int128_add(int128_make64(other->addr), other->size))
- || int128_le(int128_add(int128_make64(offset), subregion->size),
- int128_make64(other->addr))) {
- continue;
- }
-#if 0
- printf("warning: subregion collision %llx/%llx (%s) "
- "vs %llx/%llx (%s)\n",
- (unsigned long long)offset,
- (unsigned long long)int128_get64(subregion->size),
- subregion->name,
- (unsigned long long)other->addr,
- (unsigned long long)int128_get64(other->size),
- other->name);
-#endif
- }
- QTAILQ_FOREACH(other, &mr->subregions, subregions_link) {
- if (subregion->priority >= other->priority) {
- QTAILQ_INSERT_BEFORE(other, subregion, subregions_link);
- goto done;
- }
- }
- QTAILQ_INSERT_TAIL(&mr->subregions, subregion, subregions_link);
-done:
- memory_region_update_pending |= mr->enabled && subregion->enabled;
- memory_region_transaction_commit();
-}
-
-static void memory_region_add_subregion_common(MemoryRegion *mr,
- hwaddr offset,
- MemoryRegion *subregion)
-{
- assert(!subregion->container);
- subregion->container = mr;
- subregion->addr = offset;
- memory_region_update_container_subregions(subregion);
-}
-
-void memory_region_add_subregion(MemoryRegion *mr,
- hwaddr offset,
- MemoryRegion *subregion)
-{
- subregion->may_overlap = false;
- subregion->priority = 0;
- memory_region_add_subregion_common(mr, offset, subregion);
-}
-
-void memory_region_add_subregion_overlap(MemoryRegion *mr,
- hwaddr offset,
- MemoryRegion *subregion,
- int priority)
-{
- subregion->may_overlap = true;
- subregion->priority = priority;
- memory_region_add_subregion_common(mr, offset, subregion);
-}
-
-void memory_region_del_subregion(MemoryRegion *mr,
- MemoryRegion *subregion)
-{
- memory_region_transaction_begin();
- assert(subregion->container == mr);
- subregion->container = NULL;
- QTAILQ_REMOVE(&mr->subregions, subregion, subregions_link);
- memory_region_unref(subregion);
- memory_region_update_pending |= mr->enabled && subregion->enabled;
- memory_region_transaction_commit();
-}
-
-void memory_region_set_enabled(MemoryRegion *mr, bool enabled)
-{
- if (enabled == mr->enabled) {
- return;
- }
- memory_region_transaction_begin();
- mr->enabled = enabled;
- memory_region_update_pending = true;
- memory_region_transaction_commit();
-}
-
-void memory_region_set_size(MemoryRegion *mr, uint64_t size)
-{
- Int128 s = int128_make64(size);
-
- if (size == UINT64_MAX) {
- s = int128_2_64();
- }
- if (int128_eq(s, mr->size)) {
- return;
- }
- memory_region_transaction_begin();
- mr->size = s;
- memory_region_update_pending = true;
- memory_region_transaction_commit();
-}
-
-static void memory_region_readd_subregion(MemoryRegion *mr)
-{
- MemoryRegion *container = mr->container;
-
- if (container) {
- memory_region_transaction_begin();
- memory_region_ref(mr);
- memory_region_del_subregion(container, mr);
- mr->container = container;
- memory_region_update_container_subregions(mr);
- memory_region_unref(mr);
- memory_region_transaction_commit();
- }
-}
-
-void memory_region_set_address(MemoryRegion *mr, hwaddr addr)
-{
- if (addr != mr->addr) {
- mr->addr = addr;
- memory_region_readd_subregion(mr);
- }
-}
-
-void memory_region_set_alias_offset(MemoryRegion *mr, hwaddr offset)
-{
- assert(mr->alias);
-
- if (offset == mr->alias_offset) {
- return;
- }
-
- memory_region_transaction_begin();
- mr->alias_offset = offset;
- memory_region_update_pending |= mr->enabled;
- memory_region_transaction_commit();
-}
-
-uint64_t memory_region_get_alignment(const MemoryRegion *mr)
-{
- return mr->align;
-}
-
-static int cmp_flatrange_addr(const void *addr_, const void *fr_)
-{
- const AddrRange *addr = addr_;
- const FlatRange *fr = fr_;
-
- if (int128_le(addrrange_end(*addr), fr->addr.start)) {
- return -1;
- } else if (int128_ge(addr->start, addrrange_end(fr->addr))) {
- return 1;
- }
- return 0;
-}
-
-static FlatRange *flatview_lookup(FlatView *view, AddrRange addr)
-{
- return bsearch(&addr, view->ranges, view->nr,
- sizeof(FlatRange), cmp_flatrange_addr);
-}
-
-bool memory_region_is_mapped(MemoryRegion *mr)
-{
- return mr->container ? true : false;
-}
-
-/* Same as memory_region_find, but it does not add a reference to the
- * returned region. It must be called from an RCU critical section.
- */
-static MemoryRegionSection memory_region_find_rcu(MemoryRegion *mr,
- hwaddr addr, uint64_t size)
-{
- MemoryRegionSection ret = { .mr = NULL };
- MemoryRegion *root;
- AddressSpace *as;
- AddrRange range;
- FlatView *view;
- FlatRange *fr;
-
- addr += mr->addr;
- for (root = mr; root->container; ) {
- root = root->container;
- addr += root->addr;
- }
-
- as = memory_region_to_address_space(root);
- if (!as) {
- return ret;
- }
- range = addrrange_make(int128_make64(addr), int128_make64(size));
-
- view = atomic_rcu_read(&as->current_map);
- fr = flatview_lookup(view, range);
- if (!fr) {
- return ret;
- }
-
- while (fr > view->ranges && addrrange_intersects(fr[-1].addr, range)) {
- --fr;
- }
-
- ret.mr = fr->mr;
- ret.address_space = as;
- range = addrrange_intersection(range, fr->addr);
- ret.offset_within_region = fr->offset_in_region;
- ret.offset_within_region += int128_get64(int128_sub(range.start,
- fr->addr.start));
- ret.size = range.size;
- ret.offset_within_address_space = int128_get64(range.start);
- ret.readonly = fr->readonly;
- return ret;
-}
-
-MemoryRegionSection memory_region_find(MemoryRegion *mr,
- hwaddr addr, uint64_t size)
-{
- MemoryRegionSection ret;
- rcu_read_lock();
- ret = memory_region_find_rcu(mr, addr, size);
- if (ret.mr) {
- memory_region_ref(ret.mr);
- }
- rcu_read_unlock();
- return ret;
-}
-
-bool memory_region_present(MemoryRegion *container, hwaddr addr)
-{
- MemoryRegion *mr;
-
- rcu_read_lock();
- mr = memory_region_find_rcu(container, addr, 1).mr;
- rcu_read_unlock();
- return mr && mr != container;
-}
-
-void address_space_sync_dirty_bitmap(AddressSpace *as)
-{
- FlatView *view;
- FlatRange *fr;
-
- view = address_space_get_flatview(as);
- FOR_EACH_FLAT_RANGE(fr, view) {
- MEMORY_LISTENER_UPDATE_REGION(fr, as, Forward, log_sync);
- }
- flatview_unref(view);
-}
-
-void memory_global_dirty_log_start(void)
-{
- global_dirty_log = true;
-
- MEMORY_LISTENER_CALL_GLOBAL(log_global_start, Forward);
-
- /* Refresh DIRTY_LOG_MIGRATION bit. */
- memory_region_transaction_begin();
- memory_region_update_pending = true;
- memory_region_transaction_commit();
-}
-
-void memory_global_dirty_log_stop(void)
-{
- global_dirty_log = false;
-
- /* Refresh DIRTY_LOG_MIGRATION bit. */
- memory_region_transaction_begin();
- memory_region_update_pending = true;
- memory_region_transaction_commit();
-
- MEMORY_LISTENER_CALL_GLOBAL(log_global_stop, Reverse);
-}
-
-static void listener_add_address_space(MemoryListener *listener,
- AddressSpace *as)
-{
- FlatView *view;
- FlatRange *fr;
-
- if (listener->address_space_filter
- && listener->address_space_filter != as) {
- return;
- }
-
- if (listener->begin) {
- listener->begin(listener);
- }
- if (global_dirty_log) {
- if (listener->log_global_start) {
- listener->log_global_start(listener);
- }
- }
-
- view = address_space_get_flatview(as);
- FOR_EACH_FLAT_RANGE(fr, view) {
- MemoryRegionSection section = {
- .mr = fr->mr,
- .address_space = as,
- .offset_within_region = fr->offset_in_region,
- .size = fr->addr.size,
- .offset_within_address_space = int128_get64(fr->addr.start),
- .readonly = fr->readonly,
- };
- if (fr->dirty_log_mask && listener->log_start) {
- listener->log_start(listener, &section, 0, fr->dirty_log_mask);
- }
- if (listener->region_add) {
- listener->region_add(listener, &section);
- }
- }
- if (listener->commit) {
- listener->commit(listener);
- }
- flatview_unref(view);
-}
-
-void memory_listener_register(MemoryListener *listener, AddressSpace *filter)
-{
- MemoryListener *other = NULL;
- AddressSpace *as;
-
- listener->address_space_filter = filter;
- if (QTAILQ_EMPTY(&memory_listeners)
- || listener->priority >= QTAILQ_LAST(&memory_listeners,
- memory_listeners)->priority) {
- QTAILQ_INSERT_TAIL(&memory_listeners, listener, link);
- } else {
- QTAILQ_FOREACH(other, &memory_listeners, link) {
- if (listener->priority < other->priority) {
- break;
- }
- }
- QTAILQ_INSERT_BEFORE(other, listener, link);
- }
-
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- listener_add_address_space(listener, as);
- }
-}
-
-void memory_listener_unregister(MemoryListener *listener)
-{
- QTAILQ_REMOVE(&memory_listeners, listener, link);
-}
-
-void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name)
-{
- memory_region_ref(root);
- memory_region_transaction_begin();
- as->ref_count = 1;
- as->root = root;
- as->malloced = false;
- as->current_map = g_new(FlatView, 1);
- flatview_init(as->current_map);
- as->ioeventfd_nb = 0;
- as->ioeventfds = NULL;
- QTAILQ_INSERT_TAIL(&address_spaces, as, address_spaces_link);
- as->name = g_strdup(name ? name : "anonymous");
- address_space_init_dispatch(as);
- memory_region_update_pending |= root->enabled;
- memory_region_transaction_commit();
-}
-
-static void do_address_space_destroy(AddressSpace *as)
-{
- MemoryListener *listener;
- bool do_free = as->malloced;
-
- address_space_destroy_dispatch(as);
-
- QTAILQ_FOREACH(listener, &memory_listeners, link) {
- assert(listener->address_space_filter != as);
- }
-
- flatview_unref(as->current_map);
- g_free(as->name);
- g_free(as->ioeventfds);
- memory_region_unref(as->root);
- if (do_free) {
- g_free(as);
- }
-}
-
-AddressSpace *address_space_init_shareable(MemoryRegion *root, const char *name)
-{
- AddressSpace *as;
-
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- if (root == as->root && as->malloced) {
- as->ref_count++;
- return as;
- }
- }
-
- as = g_malloc0(sizeof *as);
- address_space_init(as, root, name);
- as->malloced = true;
- return as;
-}
-
-void address_space_destroy(AddressSpace *as)
-{
- MemoryRegion *root = as->root;
-
- as->ref_count--;
- if (as->ref_count) {
- return;
- }
- /* Flush out anything from MemoryListeners listening in on this */
- memory_region_transaction_begin();
- as->root = NULL;
- memory_region_transaction_commit();
- QTAILQ_REMOVE(&address_spaces, as, address_spaces_link);
- address_space_unregister(as);
-
- /* At this point, as->dispatch and as->current_map are dummy
- * entries that the guest should never use. Wait for the old
- * values to expire before freeing the data.
- */
- as->root = root;
- call_rcu(as, do_address_space_destroy, rcu);
-}
-
-typedef struct MemoryRegionList MemoryRegionList;
-
-struct MemoryRegionList {
- const MemoryRegion *mr;
- QTAILQ_ENTRY(MemoryRegionList) queue;
-};
-
-typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead;
-
-static void mtree_print_mr(fprintf_function mon_printf, void *f,
- const MemoryRegion *mr, unsigned int level,
- hwaddr base,
- MemoryRegionListHead *alias_print_queue)
-{
- MemoryRegionList *new_ml, *ml, *next_ml;
- MemoryRegionListHead submr_print_queue;
- const MemoryRegion *submr;
- unsigned int i;
-
- if (!mr) {
- return;
- }
-
- for (i = 0; i < level; i++) {
- mon_printf(f, " ");
- }
-
- if (mr->alias) {
- MemoryRegionList *ml;
- bool found = false;
-
- /* check if the alias is already in the queue */
- QTAILQ_FOREACH(ml, alias_print_queue, queue) {
- if (ml->mr == mr->alias) {
- found = true;
- }
- }
-
- if (!found) {
- ml = g_new(MemoryRegionList, 1);
- ml->mr = mr->alias;
- QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue);
- }
- mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx
- " (prio %d, %c%c): alias %s @%s " TARGET_FMT_plx
- "-" TARGET_FMT_plx "%s\n",
- base + mr->addr,
- base + mr->addr
- + (int128_nz(mr->size) ?
- (hwaddr)int128_get64(int128_sub(mr->size,
- int128_one())) : 0),
- mr->priority,
- mr->romd_mode ? 'R' : '-',
- !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
- : '-',
- memory_region_name(mr),
- memory_region_name(mr->alias),
- mr->alias_offset,
- mr->alias_offset
- + (int128_nz(mr->size) ?
- (hwaddr)int128_get64(int128_sub(mr->size,
- int128_one())) : 0),
- mr->enabled ? "" : " [disabled]");
- } else {
- mon_printf(f,
- TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %c%c): %s%s\n",
- base + mr->addr,
- base + mr->addr
- + (int128_nz(mr->size) ?
- (hwaddr)int128_get64(int128_sub(mr->size,
- int128_one())) : 0),
- mr->priority,
- mr->romd_mode ? 'R' : '-',
- !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
- : '-',
- memory_region_name(mr),
- mr->enabled ? "" : " [disabled]");
- }
-
- QTAILQ_INIT(&submr_print_queue);
-
- QTAILQ_FOREACH(submr, &mr->subregions, subregions_link) {
- new_ml = g_new(MemoryRegionList, 1);
- new_ml->mr = submr;
- QTAILQ_FOREACH(ml, &submr_print_queue, queue) {
- if (new_ml->mr->addr < ml->mr->addr ||
- (new_ml->mr->addr == ml->mr->addr &&
- new_ml->mr->priority > ml->mr->priority)) {
- QTAILQ_INSERT_BEFORE(ml, new_ml, queue);
- new_ml = NULL;
- break;
- }
- }
- if (new_ml) {
- QTAILQ_INSERT_TAIL(&submr_print_queue, new_ml, queue);
- }
- }
-
- QTAILQ_FOREACH(ml, &submr_print_queue, queue) {
- mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr,
- alias_print_queue);
- }
-
- QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, queue, next_ml) {
- g_free(ml);
- }
-}
-
-void mtree_info(fprintf_function mon_printf, void *f)
-{
- MemoryRegionListHead ml_head;
- MemoryRegionList *ml, *ml2;
- AddressSpace *as;
-
- QTAILQ_INIT(&ml_head);
-
- QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
- mon_printf(f, "address-space: %s\n", as->name);
- mtree_print_mr(mon_printf, f, as->root, 1, 0, &ml_head);
- mon_printf(f, "\n");
- }
-
- /* print aliased regions */
- QTAILQ_FOREACH(ml, &ml_head, queue) {
- mon_printf(f, "memory-region: %s\n", memory_region_name(ml->mr));
- mtree_print_mr(mon_printf, f, ml->mr, 1, 0, &ml_head);
- mon_printf(f, "\n");
- }
-
- QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) {
- g_free(ml);
- }
-}
-
-static const TypeInfo memory_region_info = {
- .parent = TYPE_OBJECT,
- .name = TYPE_MEMORY_REGION,
- .instance_size = sizeof(MemoryRegion),
- .instance_init = memory_region_initfn,
- .instance_finalize = memory_region_finalize,
-};
-
-static void memory_register_types(void)
-{
- type_register_static(&memory_region_info);
-}
-
-type_init(memory_register_types)