From: Alexey Kardashevskiy <a...@ozlabs.ru>
This adds owners/parents (which are the same, just occasionally
owner==NULL) printing for memory regions; a new '-o' flag
enabled new output.
Signed-off-by: Alexey Kardashevskiy <a...@ozlabs.ru>
Message-Id: <20180604032511.6980-1-...@ozlabs.ru>
Signed-off-by: Paolo Bonzini <pbonz...@redhat.com>
---
hmp-commands-info.hx | 7 ++---
include/exec/memory.h | 2 +-
memory.c | 72 ++++++++++++++++++++++++++++++++++++++++++++-------
monitor.c | 4 ++-
4 files changed, 70 insertions(+), 15 deletions(-)
diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx
index 6db3457..59bdd8f 100644
--- a/hmp-commands-info.hx
+++ b/hmp-commands-info.hx
@@ -253,10 +253,11 @@ ETEXI
{
.name = "mtree",
- .args_type = "flatview:-f,dispatch_tree:-d",
- .params = "[-f][-d]",
+ .args_type = "flatview:-f,dispatch_tree:-d,owner:-o",
+ .params = "[-f][-d][-o]",
.help = "show memory tree (-f: dump flat view for address
spaces;"
- "-d: dump dispatch tree, valid with -f only)",
+ "-d: dump dispatch tree, valid with -f only);"
+ "-o: dump region owners/parents",
.cmd = hmp_info_mtree,
},
diff --git a/include/exec/memory.h b/include/exec/memory.h
index 050323f..448d41a 100644
--- a/include/exec/memory.h
+++ b/include/exec/memory.h
@@ -1665,7 +1665,7 @@ void memory_global_dirty_log_start(void);
void memory_global_dirty_log_stop(void);
void mtree_info(fprintf_function mon_printf, void *f, bool flatview,
- bool dispatch_tree);
+ bool dispatch_tree, bool owner);
/**
* memory_region_request_mmio_ptr: request a pointer to an mmio
diff --git a/memory.c b/memory.c
index 21aa57d..e9cd446 100644
--- a/memory.c
+++ b/memory.c
@@ -2858,10 +2858,49 @@ typedef QTAILQ_HEAD(mrqueue, MemoryRegionList)
MemoryRegionListHead;
int128_sub((size), int128_one())) : 0)
#define MTREE_INDENT " "
+static void mtree_expand_owner(fprintf_function mon_printf, void *f,
+ const char *label, Object *obj)
+{
+ DeviceState *dev = (DeviceState *) object_dynamic_cast(obj, TYPE_DEVICE);
+
+ mon_printf(f, " %s:{%s", label, dev ? "dev" : "obj");
+ if (dev && dev->id) {
+ mon_printf(f, " id=%s", dev->id);
+ } else {
+ gchar *canonical_path = object_get_canonical_path(obj);
+ if (canonical_path) {
+ mon_printf(f, " path=%s", canonical_path);
+ g_free(canonical_path);
+ } else {
+ mon_printf(f, " type=%s", object_get_typename(obj));
+ }
+ }
+ mon_printf(f, "}");
+}
+
+static void mtree_print_mr_owner(fprintf_function mon_printf, void *f,
+ const MemoryRegion *mr)
+{
+ Object *owner = mr->owner;
+ Object *parent = memory_region_owner((MemoryRegion *)mr);
+
+ if (!owner && !parent) {
+ mon_printf(f, " orphan");
+ return;
+ }
+ if (owner) {
+ mtree_expand_owner(mon_printf, f, "owner", owner);
+ }
+ if (parent && parent != owner) {
+ mtree_expand_owner(mon_printf, f, "parent", parent);
+ }
+}
+
static void mtree_print_mr(fprintf_function mon_printf, void *f,
const MemoryRegion *mr, unsigned int level,
hwaddr base,
- MemoryRegionListHead *alias_print_queue)
+ MemoryRegionListHead *alias_print_queue,
+ bool owner)
{
MemoryRegionList *new_ml, *ml, *next_ml;
MemoryRegionListHead submr_print_queue;
@@ -2907,7 +2946,7 @@ static void mtree_print_mr(fprintf_function mon_printf,
void *f,
}
mon_printf(f, TARGET_FMT_plx "-" TARGET_FMT_plx
" (prio %d, %s): alias %s @%s " TARGET_FMT_plx
- "-" TARGET_FMT_plx "%s\n",
+ "-" TARGET_FMT_plx "%s",
cur_start, cur_end,
mr->priority,
memory_region_type((MemoryRegion *)mr),
@@ -2916,15 +2955,22 @@ static void mtree_print_mr(fprintf_function mon_printf,
void *f,
mr->alias_offset,
mr->alias_offset + MR_SIZE(mr->size),
mr->enabled ? "" : " [disabled]");
+ if (owner) {
+ mtree_print_mr_owner(mon_printf, f, mr);
+ }
} else {
mon_printf(f,
- TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %s): %s%s\n",
+ TARGET_FMT_plx "-" TARGET_FMT_plx " (prio %d, %s): %s%s",
cur_start, cur_end,
mr->priority,
memory_region_type((MemoryRegion *)mr),
memory_region_name(mr),
mr->enabled ? "" : " [disabled]");
+ if (owner) {
+ mtree_print_mr_owner(mon_printf, f, mr);
+ }
}
+ mon_printf(f, "\n");
QTAILQ_INIT(&submr_print_queue);
@@ -2947,7 +2993,7 @@ static void mtree_print_mr(fprintf_function mon_printf,
void *f,
QTAILQ_FOREACH(ml, &submr_print_queue, mrqueue) {
mtree_print_mr(mon_printf, f, ml->mr, level + 1, cur_start,
- alias_print_queue);
+ alias_print_queue, owner);
}
QTAILQ_FOREACH_SAFE(ml, &submr_print_queue, mrqueue, next_ml) {
@@ -2960,6 +3006,7 @@ struct FlatViewInfo {
void *f;
int counter;
bool dispatch_tree;
+ bool owner;
};
static void mtree_print_flatview(gpointer key, gpointer value,
@@ -3000,7 +3047,7 @@ static void mtree_print_flatview(gpointer key, gpointer
value,
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",
+ TARGET_FMT_plx " (prio %d, %s): %s @" TARGET_FMT_plx,
int128_get64(range->addr.start),
int128_get64(range->addr.start) + MR_SIZE(range->addr.size),
mr->priority,
@@ -3009,13 +3056,17 @@ static void mtree_print_flatview(gpointer key, gpointer
value,
range->offset_in_region);
} else {
p(f, MTREE_INDENT TARGET_FMT_plx "-"
- TARGET_FMT_plx " (prio %d, %s): %s\n",
+ TARGET_FMT_plx " (prio %d, %s): %s",
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));
}
+ if (fvi->owner) {
+ mtree_print_mr_owner(p, f, mr);
+ }
+ p(f, "\n");
range++;
}
@@ -3041,7 +3092,7 @@ static gboolean mtree_info_flatview_free(gpointer key,
gpointer value,
}
void mtree_info(fprintf_function mon_printf, void *f, bool flatview,
- bool dispatch_tree)
+ bool dispatch_tree, bool owner)
{
MemoryRegionListHead ml_head;
MemoryRegionList *ml, *ml2;
@@ -3053,7 +3104,8 @@ void mtree_info(fprintf_function mon_printf, void *f,
bool flatview,
.mon_printf = mon_printf,
.f = f,
.counter = 0,
- .dispatch_tree = dispatch_tree
+ .dispatch_tree = dispatch_tree,
+ .owner = owner,
};
GArray *fv_address_spaces;
GHashTable *views = g_hash_table_new(g_direct_hash, g_direct_equal);
@@ -3085,14 +3137,14 @@ void mtree_info(fprintf_function mon_printf, void *f,
bool flatview,
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);
+ mtree_print_mr(mon_printf, f, as->root, 1, 0, &ml_head, owner);
mon_printf(f, "\n");
}
/* print aliased regions */
QTAILQ_FOREACH(ml, &ml_head, mrqueue) {
mon_printf(f, "memory-region: %s\n", memory_region_name(ml->mr));
- mtree_print_mr(mon_printf, f, ml->mr, 1, 0, &ml_head);
+ mtree_print_mr(mon_printf, f, ml->mr, 1, 0, &ml_head, owner);
mon_printf(f, "\n");
}
diff --git a/monitor.c b/monitor.c
index 0730a27..0988eb4 100644
--- a/monitor.c
+++ b/monitor.c
@@ -2007,8 +2007,10 @@ static void hmp_info_mtree(Monitor *mon, const QDict
*qdict)
{
bool flatview = qdict_get_try_bool(qdict, "flatview", false);
bool dispatch_tree = qdict_get_try_bool(qdict, "dispatch_tree", false);
+ bool owner = qdict_get_try_bool(qdict, "owner", false);
- mtree_info((fprintf_function)monitor_printf, mon, flatview, dispatch_tree);
+ mtree_info((fprintf_function)monitor_printf, mon, flatview, dispatch_tree,
+ owner);
}
static void hmp_info_numa(Monitor *mon, const QDict *qdict)
--
1.8.3.1
