From nobody Mon Feb 9 21:02:23 2026 Delivered-To: importer@patchew.org Authentication-Results: mx.zohomail.com; dkim=pass header.i=@intel.com; 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=pass(p=none dis=none) header.from=intel.com ARC-Seal: i=1; a=rsa-sha256; t=1730789557; cv=none; d=zohomail.com; s=zohoarc; b=m+q7i0Xk+jYeko+n8vNxXTuNAd3YDTwLpf/MBkjuDUzEXNbVJDSHACQ6VK8EMr7gxfSMFjb5uy0YbqLtdQbG6MCaJVC8td7Wig8KNoywexXJjUqQDfdWv59JRk4T4PD/TB/yDjD6WKppwEyRK1M6rIurtTK/2fPxur3Drvc+IHY= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1730789557; h=Content-Transfer-Encoding:Cc:Cc:Date:Date:From:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:Subject:To:To:Message-Id:Reply-To; bh=Qvs+cmcN3UYtBVs0sIBZ0aNs33n7G7REw3obDoYJB0w=; b=YRASTXCrfZpKExZCwyY/E3b+99l+KbQ+1pGZe7Nu8q3VRHCSdgY1mX+JIzGh6TtrtPM87HXy8TCqvzhQBLelrTEi9+KDGBj0ooUan6xZDTCU0SA3BC+19qbQ+swCm/D2Zf3fTqG5MIrGnr4a+ZhTSJvrRvVeXGD6h73ajnPxiQU= ARC-Authentication-Results: i=1; mx.zohomail.com; dkim=pass header.i=@intel.com; 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=pass header.from= (p=none dis=none) Return-Path: Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) by mx.zohomail.com with SMTPS id 1730789557120106.15483313466268; Mon, 4 Nov 2024 22:52:37 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t8DEP-0002gF-8v; Tue, 05 Nov 2024 01:40:02 -0500 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 1t8DEA-0001Gy-Up for qemu-devel@nongnu.org; Tue, 05 Nov 2024 01:39:47 -0500 Received: from mgamail.intel.com ([198.175.65.18]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1t8DE8-0001vj-Ac for qemu-devel@nongnu.org; Tue, 05 Nov 2024 01:39:45 -0500 Received: from fmviesa009.fm.intel.com ([10.60.135.149]) by orvoesa110.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 04 Nov 2024 22:39:27 -0800 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmviesa009.fm.intel.com with ESMTP; 04 Nov 2024 22:39:23 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730788784; x=1762324784; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=sfRTE3KuC3TUYSe9/IzIJIb3zhuizbpOCanDRw/1dzs=; b=QDUYqhJ8A64ZiOc5a7kXHNgeDemHjzezMXCBvqNGpX9ZV4MPGauIpD5x EB3UYg9p4vt7bk1eTGIWtHuLmmAgTZN8XduN3ZPsjplYPVg0HMko8mVt0 XOcv+p5iXpdSmiExthoHEPhESFVhBbRTYVUJGYjRZcxBEA2+Kdcli3Fl4 zHhIGNtzFU52GfYGikk0I6jF94iIOZ8t5u1+hjClHNctUE1GPQtzCy0n1 zUtUgqYwnNQh7r+pTory6yE4HWeQLdCH1Qy1g8/5i2RJBWjg33vA0cKdg q2uJvnBasfDM/9DRWwKJm0PpEqSts7FEdNyV8SLa/NpPLyrItREkzj9Ca Q==; X-CSE-ConnectionGUID: imm7mhVCTIiFuZKYogs1qQ== X-CSE-MsgGUID: ZuQE2lcnT8ujhl9G2UKjRg== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="30689787" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="30689787" X-CSE-ConnectionGUID: wooCqLHeS6GiI0bPYQB6Sg== X-CSE-MsgGUID: Nssb6yFVSEmGQHaQCO+BPQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,259,1725346800"; d="scan'208";a="83989635" From: Xiaoyao Li To: Paolo Bonzini , Riku Voipio , Richard Henderson , Zhao Liu , "Michael S. Tsirkin" , Marcel Apfelbaum , Igor Mammedov , Ani Sinha Cc: =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Yanan Wang , Cornelia Huck , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti , rick.p.edgecombe@intel.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, xiaoyao.li@intel.com Subject: [PATCH v6 43/60] i386/tdx: Only configure MSR_IA32_UCODE_REV in kvm_init_msrs() for TDs Date: Tue, 5 Nov 2024 01:23:51 -0500 Message-Id: <20241105062408.3533704-44-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20241105062408.3533704-1-xiaoyao.li@intel.com> References: <20241105062408.3533704-1-xiaoyao.li@intel.com> 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=198.175.65.18; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -39 X-Spam_score: -4.0 X-Spam_bar: ---- X-Spam_report: (-4.0 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.34, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.001, HK_RANDOM_FROM=0.781, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_CERTIFIED_BLOCKED=0.001, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1730789559292116601 Content-Type: text/plain; charset="utf-8" For TDs, only MSR_IA32_UCODE_REV in kvm_init_msrs() can be configured by VMM, while the features enumerated/controlled by other MSRs except MSR_IA32_UCODE_REV in kvm_init_msrs() are not under control of VMM. Only configure MSR_IA32_UCODE_REV for TDs. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- target/i386/kvm/kvm.c | 44 ++++++++++++++++++++++--------------------- 1 file changed, 23 insertions(+), 21 deletions(-) diff --git a/target/i386/kvm/kvm.c b/target/i386/kvm/kvm.c index 595439f4a4d6..8909fce14909 100644 --- a/target/i386/kvm/kvm.c +++ b/target/i386/kvm/kvm.c @@ -3852,32 +3852,34 @@ static void kvm_init_msrs(X86CPU *cpu) CPUX86State *env =3D &cpu->env; =20 kvm_msr_buf_reset(cpu); - if (has_msr_arch_capabs) { - kvm_msr_entry_add(cpu, MSR_IA32_ARCH_CAPABILITIES, - env->features[FEAT_ARCH_CAPABILITIES]); - } - - if (has_msr_core_capabs) { - kvm_msr_entry_add(cpu, MSR_IA32_CORE_CAPABILITY, - env->features[FEAT_CORE_CAPABILITY]); - } - - if (has_msr_perf_capabs && cpu->enable_pmu) { - kvm_msr_entry_add_perf(cpu, env->features); + + if (!is_tdx_vm()) { + if (has_msr_arch_capabs) { + kvm_msr_entry_add(cpu, MSR_IA32_ARCH_CAPABILITIES, + env->features[FEAT_ARCH_CAPABILITIES]); + } + + if (has_msr_core_capabs) { + kvm_msr_entry_add(cpu, MSR_IA32_CORE_CAPABILITY, + env->features[FEAT_CORE_CAPABILITY]); + } + + if (has_msr_perf_capabs && cpu->enable_pmu) { + kvm_msr_entry_add_perf(cpu, env->features); + } + + /* + * Older kernels do not include VMX MSRs in KVM_GET_MSR_INDEX_LIST= , but + * all kernels with MSR features should have them. + */ + if (kvm_feature_msrs && cpu_has_vmx(env)) { + kvm_msr_entry_add_vmx(cpu, env->features); + } } =20 if (has_msr_ucode_rev) { kvm_msr_entry_add(cpu, MSR_IA32_UCODE_REV, cpu->ucode_rev); } - - /* - * Older kernels do not include VMX MSRs in KVM_GET_MSR_INDEX_LIST, but - * all kernels with MSR features should have them. - */ - if (kvm_feature_msrs && cpu_has_vmx(env)) { - kvm_msr_entry_add_vmx(cpu, env->features); - } - assert(kvm_buf_set_msrs(cpu) =3D=3D 0); } =20 --=20 2.34.1