From patchwork Thu Oct 19 12:58:53 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Song Gao X-Patchwork-Id: 1851638 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; spf=pass (sender SPF authorized) smtp.mailfrom=nongnu.org (client-ip=209.51.188.17; helo=lists.gnu.org; envelope-from=qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org; receiver=patchwork.ozlabs.org) Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-ECDSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by legolas.ozlabs.org (Postfix) with ESMTPS id 4SB7Cc3c9sz20cx for ; Fri, 20 Oct 2023 00:02:04 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qtScC-0005eB-Tr; Thu, 19 Oct 2023 08:59:04 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1qtScA-0005dM-TT for qemu-devel@nongnu.org; Thu, 19 Oct 2023 08:59:02 -0400 Received: from mail.loongson.cn ([114.242.206.163]) by eggs.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qtSc7-0002be-NG for qemu-devel@nongnu.org; Thu, 19 Oct 2023 08:59:02 -0400 Received: from loongson.cn (unknown [10.2.5.185]) by gateway (Coremail) with SMTP id _____8Bx5fARKDFlyjIzAA--.34459S3; Thu, 19 Oct 2023 20:58:57 +0800 (CST) Received: from localhost.localdomain (unknown [10.2.5.185]) by localhost.localdomain (Coremail) with SMTP id AQAAf8Axji8LKDFl8dsqAA--.25009S6; Thu, 19 Oct 2023 20:58:56 +0800 (CST) From: Song Gao To: qemu-devel@nongnu.org Cc: richard.henderson@linaro.org, philmd@redhat.com, peter.maydell@linaro.org, eblake@redhat.com, armbru@redhat.com, maobibo@loongson.cn Subject: [PATCH v2 4/4] target/loongarch: Implement query-cpu-model-expansion Date: Thu, 19 Oct 2023 20:58:53 +0800 Message-Id: <20231019125853.3436531-5-gaosong@loongson.cn> X-Mailer: git-send-email 2.39.1 In-Reply-To: <20231019125853.3436531-1-gaosong@loongson.cn> References: <20231019125853.3436531-1-gaosong@loongson.cn> MIME-Version: 1.0 X-CM-TRANSID: AQAAf8Axji8LKDFl8dsqAA--.25009S6 X-CM-SenderInfo: 5jdr20tqj6z05rqj20fqof0/ X-Coremail-Antispam: 1Uk129KBjDUn29KB7ZKAUJUUUUU529EdanIXcx71UUUUU7KY7 ZEXasCq-sGcSsGvfJ3UbIjqfuFe4nvWSU5nxnvy29KBjDU0xBIdaVrnUUvcSsGvfC2Kfnx nUUI43ZEXa7xR_UUUUUUUUU== Received-SPF: pass client-ip=114.242.206.163; envelope-from=gaosong@loongson.cn; helo=mail.loongson.cn X-Spam_score_int: -18 X-Spam_score: -1.9 X-Spam_bar: - X-Spam_report: (-1.9 / 5.0 requ) BAYES_00=-1.9, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Add support for the query-cpu-model-expansion QMP command to LoongArch. We support query the cpu features. e.g la464 and max cpu support LSX/LASX, default enable, la132 not support LSX/LASX. 1. start with '-cpu max,lasx=off' (QEMU) query-cpu-model-expansion type=static model={"name":"max"} {"return": {"model": {"name": "max", "props": {"lasx": false, "lsx": true}}}} 2. start with '-cpu la464,lasx=off' (QEMU) query-cpu-model-expansion type=static model={"name":"la464"} {"return": {"model": {"name": "max", "props": {"lasx": false, "lsx": true}}} 3. start with '-cpu la132,lasx=off' qemu-system-loongarch64: can't apply global la132-loongarch-cpu.lasx=off: Property 'la132-loongarch-cpu.lasx' not found 4. start with '-cpu max,lasx=off' or start with '-cpu la464,lasx=off' query cpu model la132 (QEMU) query-cpu-model-expansion type=static model={"name":"la132"} {"return": {"model": {"name": "la132"}}} Acked-by: Markus Armbruster Signed-off-by: Song Gao --- qapi/machine-target.json | 6 ++- target/loongarch/loongarch-qmp-cmds.c | 64 +++++++++++++++++++++++++++ 2 files changed, 68 insertions(+), 2 deletions(-) diff --git a/qapi/machine-target.json b/qapi/machine-target.json index f0a6b72414..752b18cced 100644 --- a/qapi/machine-target.json +++ b/qapi/machine-target.json @@ -228,7 +228,8 @@ 'data': { 'model': 'CpuModelInfo' }, 'if': { 'any': [ 'TARGET_S390X', 'TARGET_I386', - 'TARGET_ARM' ] } } + 'TARGET_ARM', + 'TARGET_LOONGARCH64' ] } } ## # @query-cpu-model-expansion: @@ -273,7 +274,8 @@ 'returns': 'CpuModelExpansionInfo', 'if': { 'any': [ 'TARGET_S390X', 'TARGET_I386', - 'TARGET_ARM' ] } } + 'TARGET_ARM', + 'TARGET_LOONGARCH64' ] } } ## # @CpuDefinitionInfo: diff --git a/target/loongarch/loongarch-qmp-cmds.c b/target/loongarch/loongarch-qmp-cmds.c index 6c25957881..645672ff59 100644 --- a/target/loongarch/loongarch-qmp-cmds.c +++ b/target/loongarch/loongarch-qmp-cmds.c @@ -7,8 +7,13 @@ */ #include "qemu/osdep.h" +#include "qapi/error.h" #include "qapi/qapi-commands-machine-target.h" #include "cpu.h" +#include "qapi/qmp/qerror.h" +#include "qapi/qmp/qdict.h" +#include "qapi/qobject-input-visitor.h" +#include "qom/qom-qobject.h" static void loongarch_cpu_add_definition(gpointer data, gpointer user_data) { @@ -35,3 +40,62 @@ CpuDefinitionInfoList *qmp_query_cpu_definitions(Error **errp) return cpu_list; } + +static const char *cpu_model_advertised_features[] = { + "lsx", "lasx", NULL +}; + +CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, + CpuModelInfo *model, + Error **errp) +{ + CpuModelExpansionInfo *expansion_info; + QDict *qdict_out; + ObjectClass *oc; + Object *obj; + const char *name; + int i; + + if (type != CPU_MODEL_EXPANSION_TYPE_STATIC) { + error_setg(errp, "The requested expansion type is not supported"); + return NULL; + } + + oc = cpu_class_by_name(TYPE_LOONGARCH_CPU, model->name); + if (!oc) { + error_setg(errp, "The CPU type '%s' is not a recognized LoongArch CPU type", + model->name); + return NULL; + } + + obj = object_new(object_class_get_name(oc)); + + expansion_info = g_new0(CpuModelExpansionInfo, 1); + expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); + expansion_info->model->name = g_strdup(model->name); + + qdict_out = qdict_new(); + + i = 0; + while ((name = cpu_model_advertised_features[i++]) != NULL) { + ObjectProperty *prop = object_property_find(obj, name); + if (prop) { + QObject *value; + + assert(prop->get); + value = object_property_get_qobject(obj, name, &error_abort); + + qdict_put_obj(qdict_out, name, value); + } + } + + if (!qdict_size(qdict_out)) { + qobject_unref(qdict_out); + } else { + expansion_info->model->props = QOBJECT(qdict_out); + } + + object_unref(obj); + + return expansion_info; +}