#include "qemu/bitops.h"
#include "qemu/error-report.h"
#include "qom/object.h"
-#include "trace.h"
+#include "trace-root.h"
#include "exec/memory-internal.h"
#include "exec/ram_addr.h"
++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);
+ assert(qemu_mutex_iothread_locked());
+
--memory_region_transaction_depth;
if (!memory_region_transaction_depth) {
if (memory_region_update_pending) {
QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
address_space_update_topology(as);
}
-
+ memory_region_update_pending = false;
MEMORY_LISTENER_CALL_GLOBAL(commit, Forward);
} else if (ioeventfd_update_pending) {
QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
address_space_update_ioeventfds(as);
}
+ ioeventfd_update_pending = false;
}
- memory_region_clear_pending();
}
}
static const MemoryRegionOps ram_device_mem_ops = {
.read = memory_region_ram_device_read,
.write = memory_region_ram_device_write,
- .endianness = DEVICE_NATIVE_ENDIAN,
+ .endianness = DEVICE_HOST_ENDIAN,
.valid = {
.min_access_size = 1,
.max_access_size = 8,
void memory_listener_unregister(MemoryListener *listener)
{
+ if (!listener->address_space) {
+ return;
+ }
+
QTAILQ_REMOVE(&memory_listeners, listener, link);
QTAILQ_REMOVE(&listener->address_space->listeners, listener, link_as);
+ listener->address_space = NULL;
}
void address_space_init(AddressSpace *as, MemoryRegion *root, const char *name)
call_rcu(as, do_address_space_destroy, rcu);
}
+static const char *memory_region_type(MemoryRegion *mr)
+{
+ if (memory_region_is_ram_device(mr)) {
+ return "ramd";
+ } else if (memory_region_is_romd(mr)) {
+ return "romd";
+ } else if (memory_region_is_rom(mr)) {
+ return "rom";
+ } else if (memory_region_is_ram(mr)) {
+ return "ram";
+ } else {
+ return "i/o";
+ }
+}
+
typedef struct MemoryRegionList MemoryRegionList;
struct MemoryRegionList {
typedef QTAILQ_HEAD(queue, MemoryRegionList) MemoryRegionListHead;
+#define MR_SIZE(size) (int128_nz(size) ? (hwaddr)int128_get64( \
+ int128_sub((size), int128_one())) : 0)
+#define MTREE_INDENT " "
+
static void mtree_print_mr(fprintf_function mon_printf, void *f,
const MemoryRegion *mr, unsigned int level,
hwaddr base,
MemoryRegionListHead submr_print_queue;
const MemoryRegion *submr;
unsigned int i;
+ hwaddr cur_start, cur_end;
if (!mr) {
return;
}
for (i = 0; i < level; i++) {
- mon_printf(f, " ");
+ mon_printf(f, MTREE_INDENT);
+ }
+
+ cur_start = base + mr->addr;
+ cur_end = cur_start + MR_SIZE(mr->size);
+
+ /*
+ * Try to detect overflow of memory region. This should never
+ * happen normally. When it happens, we dump something to warn the
+ * user who is observing this.
+ */
+ if (cur_start < base || cur_end < cur_start) {
+ mon_printf(f, "[DETECTED OVERFLOW!] ");
}
if (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
+ " (prio %d, %s): 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),
+ cur_start, cur_end,
mr->priority,
- mr->romd_mode ? 'R' : '-',
- !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
- : '-',
+ memory_region_type((MemoryRegion *)mr),
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->alias_offset + MR_SIZE(mr->size),
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),
+ TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %s): %s%s\n",
+ cur_start, cur_end,
mr->priority,
- mr->romd_mode ? 'R' : '-',
- !mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
- : '-',
+ memory_region_type((MemoryRegion *)mr),
memory_region_name(mr),
mr->enabled ? "" : " [disabled]");
}
}
QTAILQ_FOREACH(ml, &submr_print_queue, queue) {
- mtree_print_mr(mon_printf, f, ml->mr, level + 1, base + mr->addr,
+ mtree_print_mr(mon_printf, f, ml->mr, level + 1, cur_start,
alias_print_queue);
}
}
}
-void mtree_info(fprintf_function mon_printf, void *f)
+static void mtree_print_flatview(fprintf_function p, void *f,
+ AddressSpace *as)
+{
+ FlatView *view = address_space_get_flatview(as);
+ FlatRange *range = &view->ranges[0];
+ MemoryRegion *mr;
+ int n = view->nr;
+
+ if (n <= 0) {
+ p(f, MTREE_INDENT "No rendered FlatView for "
+ "address space '%s'\n", as->name);
+ flatview_unref(view);
+ return;
+ }
+
+ while (n--) {
+ mr = range->mr;
+ if (range->offset_in_region) {
+ p(f, MTREE_INDENT TARGET_FMT_plx "-"
+ TARGET_FMT_plx " (prio %d, %s): %s @" TARGET_FMT_plx "\n",
+ int128_get64(range->addr.start),
+ int128_get64(range->addr.start) + MR_SIZE(range->addr.size),
+ mr->priority,
+ range->readonly ? "rom" : memory_region_type(mr),
+ memory_region_name(mr),
+ range->offset_in_region);
+ } else {
+ p(f, MTREE_INDENT TARGET_FMT_plx "-"
+ TARGET_FMT_plx " (prio %d, %s): %s\n",
+ int128_get64(range->addr.start),
+ int128_get64(range->addr.start) + MR_SIZE(range->addr.size),
+ mr->priority,
+ range->readonly ? "rom" : memory_region_type(mr),
+ memory_region_name(mr));
+ }
+ range++;
+ }
+
+ flatview_unref(view);
+}
+
+void mtree_info(fprintf_function mon_printf, void *f, bool flatview)
{
MemoryRegionListHead ml_head;
MemoryRegionList *ml, *ml2;
AddressSpace *as;
+ if (flatview) {
+ QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {
+ mon_printf(f, "address-space (flat view): %s\n", as->name);
+ mtree_print_flatview(mon_printf, f, as);
+ mon_printf(f, "\n");
+ }
+ return;
+ }
+
QTAILQ_INIT(&ml_head);
QTAILQ_FOREACH(as, &address_spaces, address_spaces_link) {