#include "exec/memory.h"
#include "exec/address-spaces.h"
#include "exec/ioport.h"
+#include "qapi/visitor.h"
#include "qemu/bitops.h"
#include "qom/object.h"
#include "trace.h"
typedef struct AddrRange AddrRange;
/*
- * Note using signed integers limits us to physical addresses at most
- * 63 bits wide. They are needed for negative offsetting in aliases
+ * Note that signed integers are needed for negative offsetting in aliases
* (large MemoryRegion::alias_offset).
*/
struct AddrRange {
const char *name,
uint64_t size)
{
- object_initialize(mr, sizeof(*mr), TYPE_MEMORY_REGION);
+ if (!owner) {
+ owner = qdev_get_machine();
+ }
- mr->owner = owner ? owner : qdev_get_machine();
+ 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);
if (name) {
- object_property_add_child_array(mr->owner, name, OBJECT(mr));
+ object_property_add_child_array(owner, name, OBJECT(mr));
object_unref(OBJECT(mr));
}
}
+static void memory_region_get_addr(Object *obj, Visitor *v, void *opaque,
+ const char *name, Error **errp)
+{
+ MemoryRegion *mr = MEMORY_REGION(obj);
+ uint64_t value = mr->addr;
+
+ visit_type_uint64(v, &value, name, errp);
+}
+
+static void memory_region_get_container(Object *obj, Visitor *v, void *opaque,
+ const char *name, 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, &path, name, 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, void *opaque,
+ const char *name, Error **errp)
+{
+ MemoryRegion *mr = MEMORY_REGION(obj);
+ int32_t value = mr->priority;
+
+ visit_type_int32(v, &value, name, 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, void *opaque,
+ const char *name, Error **errp)
+{
+ MemoryRegion *mr = MEMORY_REGION(obj);
+ uint64_t value = memory_region_size(mr);
+
+ visit_type_uint64(v, &value, name, errp);
+}
+
static void memory_region_initfn(Object *obj)
{
MemoryRegion *mr = MEMORY_REGION(obj);
+ ObjectProperty *op;
mr->ops = &unassigned_mem_ops;
mr->enabled = 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,
g_free(mr->ioeventfds);
}
-void memory_region_destroy(MemoryRegion *mr)
-{
- object_unparent(OBJECT(mr));
-}
-
-
Object *memory_region_owner(MemoryRegion *mr)
{
- return mr->owner;
+ Object *obj = OBJECT(mr);
+ return obj->parent;
}
void memory_region_ref(MemoryRegion *mr)
{
- if (mr && mr->owner) {
- object_ref(mr->owner);
+ /* 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,
+ * but we still ref/unref them for debugging purposes.
+ */
+ Object *obj = OBJECT(mr);
+ if (obj && obj->parent) {
+ object_ref(obj->parent);
} else {
- object_ref(OBJECT(mr));
+ object_ref(obj);
}
}
void memory_region_unref(MemoryRegion *mr)
{
- if (mr && mr->owner) {
- object_unref(mr->owner);
+ Object *obj = OBJECT(mr);
+ if (obj && obj->parent) {
+ object_unref(obj->parent);
} else {
- object_unref(OBJECT(mr));
+ object_unref(obj);
}
}
return int128_get64(mr->size);
}
-const char *memory_region_name(MemoryRegion *mr)
+const char *memory_region_name(const MemoryRegion *mr)
{
return mr->name;
}
struct MemoryRegionList {
const MemoryRegion *mr;
- bool printed;
QTAILQ_ENTRY(MemoryRegionList) queue;
};
/* check if the alias is already in the queue */
QTAILQ_FOREACH(ml, alias_print_queue, queue) {
- if (ml->mr == mr->alias && !ml->printed) {
+ if (ml->mr == mr->alias) {
found = true;
}
}
if (!found) {
ml = g_new(MemoryRegionList, 1);
ml->mr = mr->alias;
- ml->printed = false;
QTAILQ_INSERT_TAIL(alias_print_queue, ml, queue);
}
mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx
mr->romd_mode ? 'R' : '-',
!mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
: '-',
- mr->name,
- mr->alias->name,
+ memory_region_name(mr),
+ memory_region_name(mr->alias),
mr->alias_offset,
mr->alias_offset
+ (int128_nz(mr->size) ?
mr->romd_mode ? 'R' : '-',
!mr->readonly && !(mr->rom_device && mr->romd_mode) ? 'W'
: '-',
- mr->name);
+ memory_region_name(mr));
}
QTAILQ_INIT(&submr_print_queue);
mon_printf(f, "aliases\n");
/* print aliased regions */
QTAILQ_FOREACH(ml, &ml_head, queue) {
- if (!ml->printed) {
- mon_printf(f, "%s\n", ml->mr->name);
- mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head);
- }
+ mon_printf(f, "%s\n", memory_region_name(ml->mr));
+ mtree_print_mr(mon_printf, f, ml->mr, 0, 0, &ml_head);
}
QTAILQ_FOREACH_SAFE(ml, &ml_head, queue, ml2) {
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