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Extracted from a patch by Mark Kanda. Signed-off-by: Paolo Bonzini --- hmp-commands-info.hx | 7 ++++--- monitor/hmp-cmds.c | 46 +++++++++++++++++++++++++++++++++++--------- 2 files changed, 41 insertions(+), 12 deletions(-) diff --git a/hmp-commands-info.hx b/hmp-commands-info.hx index 221feab8c0..1a3e16175f 100644 --- a/hmp-commands-info.hx +++ b/hmp-commands-info.hx @@ -897,9 +897,10 @@ ERST =20 { .name =3D "stats", - .args_type =3D "target:s", - .params =3D "target", - .help =3D "show statistics; target is either vm or vcpu", + .args_type =3D "target:s,provider:s?", + .params =3D "target [provider]", + .help =3D "show statistics for the given target (vm or vcpu)= ; optionally filter by " + "provider", .cmd =3D hmp_info_stats, }, =20 diff --git a/monitor/hmp-cmds.c b/monitor/hmp-cmds.c index 2085d88e7d..2bce9d7016 100644 --- a/monitor/hmp-cmds.c +++ b/monitor/hmp-cmds.c @@ -2281,6 +2281,7 @@ static StatsSchemaValueList *find_schema_value_list( } =20 static void print_stats_results(Monitor *mon, StatsTarget target, + bool show_provider, StatsResult *result, StatsSchemaList *schema) { @@ -2295,8 +2296,10 @@ static void print_stats_results(Monitor *mon, StatsT= arget target, return; } =20 - monitor_printf(mon, "provider: %s\n", - StatsProvider_str(result->provider)); + if (show_provider) { + monitor_printf(mon, "provider: %s\n", + StatsProvider_str(result->provider)); + } =20 for (stats_list =3D result->stats; stats_list; stats_list =3D stats_list->next, @@ -2337,7 +2340,8 @@ static void print_stats_results(Monitor *mon, StatsTa= rget target, } =20 /* Create the StatsFilter that is needed for an "info stats" invocation. = */ -static StatsFilter *stats_filter(StatsTarget target, int cpu_index) +static StatsFilter *stats_filter(StatsTarget target, int cpu_index, + StatsProvider provider) { StatsFilter *filter =3D g_malloc0(sizeof(*filter)); =20 @@ -2359,15 +2363,31 @@ static StatsFilter *stats_filter(StatsTarget target= , int cpu_index) default: break; } + + if (provider =3D=3D STATS_PROVIDER__MAX) { + return filter; + } + + /* "info stats" can only query either one or all the providers. */ + StatsRequest *request =3D g_new0(StatsRequest, 1); + request->provider =3D provider; + StatsRequestList *request_list =3D g_new0(StatsRequestList, 1); + QAPI_LIST_PREPEND(request_list, request); + filter->has_providers =3D true; + filter->providers =3D request_list; return filter; } =20 void hmp_info_stats(Monitor *mon, const QDict *qdict) { const char *target_str =3D qdict_get_str(qdict, "target"); + const char *provider_str =3D qdict_get_try_str(qdict, "provider"); + + StatsProvider provider =3D STATS_PROVIDER__MAX; StatsTarget target; Error *err =3D NULL; StatsResultList *stats =3D NULL; + StatsResultList *entry; StatsSchemaList *schema =3D NULL; StatsFilter *filter =3D NULL; =20 @@ -2376,19 +2396,27 @@ void hmp_info_stats(Monitor *mon, const QDict *qdic= t) monitor_printf(mon, "invalid stats target %s\n", target_str); goto exit_no_print; } + if (provider_str) { + provider =3D qapi_enum_parse(&StatsProvider_lookup, provider_str, = -1, &err); + if (err) { + monitor_printf(mon, "invalid stats provider %s\n", provider_st= r); + goto exit_no_print; + } + } =20 - schema =3D qmp_query_stats_schemas(false, 0, &err); + schema =3D qmp_query_stats_schemas(provider_str ? true : false, + provider, &err); if (err) { goto exit; } =20 switch (target) { case STATS_TARGET_VM: - filter =3D stats_filter(target, -1); - break; + filter =3D stats_filter(target, -1, provider); + break; case STATS_TARGET_VCPU: {} int cpu_index =3D monitor_get_cpu_index(mon); - filter =3D stats_filter(target, cpu_index); + filter =3D stats_filter(target, cpu_index, provider); break; default: abort(); @@ -2398,8 +2426,8 @@ void hmp_info_stats(Monitor *mon, const QDict *qdict) if (err) { goto exit; } - if (stats) { - print_stats_results(mon, target, stats->value, schema); + for (entry =3D stats; entry; entry =3D entry->next) { + print_stats_results(mon, target, provider_str =3D=3D NULL, entry->= value, schema); } qapi_free_StatsFilter(filter); qapi_free_StatsSchemaList(schema); --=20 2.35.1