From nobody Sat May 18 17:15:58 2024 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=fail; spf=pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) smtp.mailfrom=qemu-devel-bounces+importer=patchew.org@nongnu.org; dmarc=fail(p=none dis=none) header.from=bytedance.com Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1624886484623809.011767228412; Mon, 28 Jun 2021 06:21:24 -0700 (PDT) Received: from localhost ([::1]:47402 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1lxrCV-0005YC-02 for importer@patchew.org; Mon, 28 Jun 2021 09:21:23 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:39632) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1lxrBh-0004nJ-D9 for qemu-devel@nongnu.org; Mon, 28 Jun 2021 09:20:33 -0400 Received: from mail-pg1-x52e.google.com ([2607:f8b0:4864:20::52e]:36514) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_128_GCM_SHA256:128) (Exim 4.90_1) (envelope-from ) id 1lxrBc-0004R9-Ly for qemu-devel@nongnu.org; Mon, 28 Jun 2021 09:20:30 -0400 Received: by mail-pg1-x52e.google.com with SMTP id e33so15472684pgm.3 for ; Mon, 28 Jun 2021 06:20:26 -0700 (PDT) Received: from always-libai.bytedance.net ([61.120.150.77]) by smtp.gmail.com with ESMTPSA id d1sm4081318pju.16.2021.06.28.06.20.22 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 28 Jun 2021 06:20:25 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=bytedance-com.20150623.gappssmtp.com; s=20150623; h=from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=W4yNmr7CGV67QrlZN9kVwsThWHzgbSsWPRAA4AXrnp4=; b=fIUnk4AazXDsBclQF1QWJSjgxAwBP/GLwW3QXCTG3Y3Cvo10jq5hULvvI2kgSiBwc/ k70O5FmKsbOJIwEBKKOAZIW8StzpQtKfS2y/JUr2eSX1ZBnGc4fOLjY2Xu/IehBczdaC EIGeXiIyOpktklqtPbCEImCgsNolFe1J5TQkp/uD0B0dhTfQ/cfQNYeTfykqXqLPCwUz wktHRgQb6uzZYTTh+sasIFa3jTh20G6jzKKY4e6dmaOXoGPZnDqP/7mHEye4qL3dBNpr kgun9LRDj9clsMI41JCqJ+gm/RbmFi6Wl63eH2dpUJ+BNezrydrX3WzdUhOTX+Haeawf myig== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:from:to:cc:subject:date:message-id:mime-version :content-transfer-encoding; bh=W4yNmr7CGV67QrlZN9kVwsThWHzgbSsWPRAA4AXrnp4=; b=kaurz0a225ELUCtr/6CYgGTh4wng+zB2R3lxyEtZdxlQZ+bi6cmuuM/O4EL+g0L6dA MVsz4bDQtV2s2DiER3DKKVtPCgDrSPf5ltQB8jLg8UIHpyQjx8F7fCt3NjQ79WZvfT1g brTPOWrVmRft7RQBk56GPAvDk4U58ELv/u8DlOF+KSq9EiOKc/wS4/nFHFP+RJp2yWBx 1jt5OiXr5i55kKgfdkAUeO/lPhE7pWlhMrYO8quANtKOfllM2d0gabCZBy7Vp6n7jtIQ ndoZhDSwX2wigyXKBE71/wOFOG/BmetaUraB0ea38G3Fgd09EwoSwuhc3qBWqvGBAZzv /6Ew== X-Gm-Message-State: AOAM530rXyYwznzh7UZFQ8wODPPs3tJQHj0fPYtefUl4cXQWm4ddFamP rMdWgSJRNnq4+NfqLvaYjR5faw== X-Google-Smtp-Source: ABdhPJztH0dl0C3InQwZ7SidURHWTwCPH2Vmlm0ssC8K/ohw+UN6UaDKVA6OYiwB8jefAAurDwOm0A== X-Received: by 2002:a05:6a00:22cd:b029:307:8bc0:8310 with SMTP id f13-20020a056a0022cdb02903078bc08310mr24735153pfj.43.1624886425429; Mon, 28 Jun 2021 06:20:25 -0700 (PDT) From: zhenwei pi To: ehabkost@redhat.com, pbonzini@redhat.com, richard.henderson@linaro.org, philmd@redhat.com, armbru@redhat.com Subject: [PATCH] target/i386: Fix cpuid level for AMD Date: Mon, 28 Jun 2021 21:20:18 +0800 Message-Id: <20210628132018.394994-1-pizhenwei@bytedance.com> X-Mailer: git-send-email 2.25.1 MIME-Version: 1.0 Content-Transfer-Encoding: quoted-printable Received-SPF: pass (zohomail.com: domain of gnu.org designates 209.51.188.17 as permitted sender) client-ip=209.51.188.17; envelope-from=qemu-devel-bounces+importer=patchew.org@nongnu.org; helo=lists.gnu.org; Received-SPF: pass client-ip=2607:f8b0:4864:20::52e; envelope-from=pizhenwei@bytedance.com; helo=mail-pg1-x52e.google.com 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, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, 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: 2.1.23 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: zhenwei pi , qemu-devel@nongnu.org, like.xu@linux.intel.com Errors-To: qemu-devel-bounces+importer=patchew.org@nongnu.org Sender: "Qemu-devel" X-ZohoMail-DKIM: fail (Header signature does not verify) Content-Type: text/plain; charset="utf-8" A AMD server typically has cpuid level 0x10(test on Rome/Milan), it should not be changed to 0x1f in multi-dies case. Fixes: a94e1428991 (target/i386: Add CPUID.1F generation support for multi-dies PCMachine) Signed-off-by: zhenwei pi --- target/i386/cpu.c | 8 ++++++-- 1 file changed, 6 insertions(+), 2 deletions(-) diff --git a/target/i386/cpu.c b/target/i386/cpu.c index a9fe1662d3..3934c559e4 100644 --- a/target/i386/cpu.c +++ b/target/i386/cpu.c @@ -5961,8 +5961,12 @@ void x86_cpu_expand_features(X86CPU *cpu, Error **er= rp) } } =20 - /* CPU topology with multi-dies support requires CPUID[0x1F] */ - if (env->nr_dies > 1) { + /* + * Intel CPU topology with multi-dies support requires CPUID[0x1F]. + * For AMD Rome/Milan, cpuid level is 0x10, and guest OS should de= tect + * extended toplogy by leaf 0xB. Only adjust it for Intel CPU. + */ + if ((env->nr_dies > 1) && IS_INTEL_CPU(env)) { x86_cpu_adjust_level(cpu, &env->cpuid_min_level, 0x1F); } =20 --=20 2.25.1