From fc051ae6c42216ca87145106b509fa3bdfa98e00 Mon Sep 17 00:00:00 2001 From: Alexey Kardashevskiy Date: Mon, 4 Jun 2018 13:25:11 +1000 Subject: [PATCH] memory/hmp: Print owners/parents in "info mtree" 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 Message-Id: <20180604032511.6980-1-aik@ozlabs.ru> Signed-off-by: Paolo Bonzini --- 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 6db3457a78..59bdd8f713 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 050323f532..448d41a752 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 21aa57d24c..e9cd446968 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 0730a27172..0988eb4788 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)