From patchwork Wed Oct 18 19:56:36 2023 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Daniel Henrique Barboza X-Patchwork-Id: 1851191 Return-Path: X-Original-To: incoming@patchwork.ozlabs.org Delivered-To: patchwork-incoming@legolas.ozlabs.org Authentication-Results: legolas.ozlabs.org; dkim=pass (2048-bit key; unprotected) header.d=ventanamicro.com header.i=@ventanamicro.com header.a=rsa-sha256 header.s=google header.b=Th67jkld; dkim-atps=neutral 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 4S9hVq20tzz20cX for ; Thu, 19 Oct 2023 06:58:43 +1100 (AEDT) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1qtCf7-0003ra-UJ; Wed, 18 Oct 2023 15:57:02 -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 1qtCf6-0003rH-H6 for qemu-devel@nongnu.org; Wed, 18 Oct 2023 15:57:00 -0400 Received: from mail-pj1-x1031.google.com ([2607:f8b0:4864:20::1031]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1qtCf4-0001ct-To for qemu-devel@nongnu.org; Wed, 18 Oct 2023 15:57:00 -0400 Received: by mail-pj1-x1031.google.com with SMTP id 98e67ed59e1d1-27d153c7f00so4952740a91.3 for ; Wed, 18 Oct 2023 12:56:58 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ventanamicro.com; s=google; t=1697659017; x=1698263817; darn=nongnu.org; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:from:to:cc:subject:date :message-id:reply-to; bh=qIAf4nnuF3OFMrBHbJCzXvrh0kuUQuGTETn7XZtITBo=; b=Th67jkldiGFBX3Kap6mZp/tQQvFmlgm55mDHnndHA27kD19bMzW2oxQ4H00QIJcFzs gXqdNz1zHA9j3EOWe5sQvKHeDYiQtbzle3HfE+kBaI+8P4Q/DO6ZmQh+L9wW+1TRuU0E AzeMdmRTbd5lRUAeR0oDvyAMyEUk9pPenFlHG87M+loS6vPzLDsYHKyAuig4irMjTEA3 yNCcrTpM7x1dTAnfWWmCcE7F+yONbOdI8oAJ4PxDgYbgPW6FuJHbJWp7ZTgSe+Sz88v4 xL0THCBg8FpYA90yT9FrYXLbafMAJWMqCRThWYOpTHg5KIM4LVqRGLb/qAcbS6589Rh1 1+WQ== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20230601; t=1697659017; x=1698263817; h=content-transfer-encoding:mime-version:references:in-reply-to :message-id:date:subject:cc:to:from:x-gm-message-state:from:to:cc :subject:date:message-id:reply-to; bh=qIAf4nnuF3OFMrBHbJCzXvrh0kuUQuGTETn7XZtITBo=; b=czSePXSFW5adMN/JGEuQTvAXeu5vgfbo6qZZlbfUmsTBLN36QUCvAsEZfgI13Fnwfw /GSCcY4F6/NSWhHhg0zCGAXPZQhODUyS+BhlKPhe+mz2CwrT9V/Hn/OmvEipe5UXVUzM GKcuytLeg81OMtBixAGrM1kjl1YM/HWPRUvL8Rxx0rjECdkcU8RYu28tRQYgOX4JS9pt 6wsBzxT9uAs2gtQFfDBsWZDHVRW50fQ+pIWZIKKGvHlVA0wrrup2LEFLavCYbOXXpzLA oSUvqJZlwJWHPQdrddnrOPs5A6mbtrDg99WhdFlWUkoWsS2jOkfPqKq9H072J1cj/kS7 g9kg== X-Gm-Message-State: AOJu0YxeQ3FAA3V4XVjtoruoWHQWts5Lrvfmz3hcmXxAzayq/kZyfvTL t80V7WcKjxgyuZj5ugSBLPDX8wbqYgBuRd9/zNU= X-Google-Smtp-Source: AGHT+IEAVWFCGSlUlfvnHl04fdsNYY9p3Pxwjcg6gEf3mmo/ZxrcscWc0arY2CGUz8+0cPJAC6HUfQ== X-Received: by 2002:a17:90b:230a:b0:27d:4129:ecd9 with SMTP id mt10-20020a17090b230a00b0027d4129ecd9mr180202pjb.26.1697659017141; Wed, 18 Oct 2023 12:56:57 -0700 (PDT) Received: from grind.dc1.ventanamicro.com ([177.45.186.249]) by smtp.gmail.com with ESMTPSA id ku12-20020a17090b218c00b00268b439a0cbsm256359pjb.23.2023.10.18.12.56.54 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Wed, 18 Oct 2023 12:56:56 -0700 (PDT) From: Daniel Henrique Barboza To: qemu-devel@nongnu.org Cc: qemu-riscv@nongnu.org, alistair.francis@wdc.com, bmeng@tinylab.org, liweiwei@iscas.ac.cn, zhiwei_liu@linux.alibaba.com, palmer@rivosinc.com, Daniel Henrique Barboza Subject: [PATCH v3 4/6] target/riscv: handle custom props in qmp_query_cpu_model_expansion Date: Wed, 18 Oct 2023 16:56:36 -0300 Message-ID: <20231018195638.211151-5-dbarboza@ventanamicro.com> X-Mailer: git-send-email 2.41.0 In-Reply-To: <20231018195638.211151-1-dbarboza@ventanamicro.com> References: <20231018195638.211151-1-dbarboza@ventanamicro.com> MIME-Version: 1.0 Received-SPF: pass client-ip=2607:f8b0:4864:20::1031; envelope-from=dbarboza@ventanamicro.com; helo=mail-pj1-x1031.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=unavailable 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 Callers can add 'props' when querying for a cpu model expansion to see if a given CPU model supports a certain criteria, and what's the resulting CPU object. If we have 'props' to handle, gather it in a QDict and use the new riscv_cpuobj_validate_qdict_in() helper to validate it. This helper will add the custom properties in the CPU object and validate it using riscv_cpu_finalize_features(). Users will be aware of validation errors if any occur, if not a CPU object with 'props' will be returned. Here's an example with the veyron-v1 vendor CPU. Disabling vendor CPU extensions is allowed, assuming the final config is valid. Disabling 'smstateen' is a valid expansion: (QEMU) query-cpu-model-expansion type=full model={"name":"veyron-v1","props":{"smstateen":false}} {"return": {"model": {"name": "veyron-v1", "props": {"zicond": false, ..., "smstateen": false, ...} But enabling extensions isn't allowed for vendor CPUs. E.g. enabling 'V' for the veyron-v1 CPU isn't allowed: (QEMU) query-cpu-model-expansion type=full model={"name":"veyron-v1","props":{"v":true}} {"error": {"class": "GenericError", "desc": "'veyron-v1' CPU does not allow enabling extensions"}} Signed-off-by: Daniel Henrique Barboza Reviewed-by: Alistair Francis --- target/riscv/riscv-qmp-cmds.c | 65 +++++++++++++++++++++++++++++++++++ 1 file changed, 65 insertions(+) diff --git a/target/riscv/riscv-qmp-cmds.c b/target/riscv/riscv-qmp-cmds.c index 2170562e3a..5b2d186c83 100644 --- a/target/riscv/riscv-qmp-cmds.c +++ b/target/riscv/riscv-qmp-cmds.c @@ -27,6 +27,9 @@ #include "qapi/error.h" #include "qapi/qapi-commands-machine-target.h" #include "qapi/qmp/qdict.h" +#include "qapi/qmp/qerror.h" +#include "qapi/qobject-input-visitor.h" +#include "qapi/visitor.h" #include "qom/qom-qobject.h" #include "cpu-qom.h" #include "cpu.h" @@ -83,14 +86,58 @@ static void riscv_obj_add_multiext_props(Object *obj, QDict *qdict_out, } } +static void riscv_cpuobj_validate_qdict_in(Object *obj, QObject *props, + const QDict *qdict_in, + Error **errp) +{ + const QDictEntry *qe; + Visitor *visitor; + Error *local_err = NULL; + + visitor = qobject_input_visitor_new(props); + if (!visit_start_struct(visitor, NULL, NULL, 0, &local_err)) { + goto err; + } + + for (qe = qdict_first(qdict_in); qe; qe = qdict_next(qdict_in, qe)) { + object_property_find_err(obj, qe->key, &local_err); + if (local_err) { + goto err; + } + + object_property_set(obj, qe->key, visitor, &local_err); + if (local_err) { + goto err; + } + } + + visit_check_struct(visitor, &local_err); + if (local_err) { + goto err; + } + + riscv_cpu_finalize_features(RISCV_CPU(obj), &local_err); + if (local_err) { + goto err; + } + + visit_end_struct(visitor, NULL); + +err: + error_propagate(errp, local_err); + visit_free(visitor); +} + CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, CpuModelInfo *model, Error **errp) { CpuModelExpansionInfo *expansion_info; + const QDict *qdict_in = NULL; QDict *qdict_out; ObjectClass *oc; Object *obj; + Error *local_err = NULL; if (type != CPU_MODEL_EXPANSION_TYPE_FULL) { error_setg(errp, "The requested expansion type is not supported"); @@ -104,8 +151,26 @@ CpuModelExpansionInfo *qmp_query_cpu_model_expansion(CpuModelExpansionType type, return NULL; } + if (model->props) { + qdict_in = qobject_to(QDict, model->props); + if (!qdict_in) { + error_setg(errp, QERR_INVALID_PARAMETER_TYPE, "props", "dict"); + return NULL; + } + } + obj = object_new(object_class_get_name(oc)); + if (qdict_in) { + riscv_cpuobj_validate_qdict_in(obj, model->props, qdict_in, + &local_err); + if (local_err) { + error_propagate(errp, local_err); + object_unref(obj); + return NULL; + } + } + expansion_info = g_new0(CpuModelExpansionInfo, 1); expansion_info->model = g_malloc0(sizeof(*expansion_info->model)); expansion_info->model->name = g_strdup(model->name);