From patchwork Thu Feb 29 06:36:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13576632 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id A70F1C48BF6 for ; Thu, 29 Feb 2024 06:48:29 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1rfa6t-00067F-89; Thu, 29 Feb 2024 01:41:39 -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 1rfa5z-0004zT-3Y for qemu-devel@nongnu.org; Thu, 29 Feb 2024 01:40:44 -0500 Received: from mgamail.intel.com ([192.198.163.15]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1rfa5t-0004nE-7d for qemu-devel@nongnu.org; Thu, 29 Feb 2024 01:40:40 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1709188837; x=1740724837; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=Gvq++bXmo93zAUhJsRjiDraEH3cCNX+uGjQb5aw6CGM=; b=GomGwSctxQ1cetgkmdAJnpXc9wM3MwpuLNyBXBMUV1+bFFvvMeQu/sze RdyvVuxFxS5GTBLSbaDe+Vpxr28NC4LFIQkCZvkV5QQtDxCzOk9tpaVai 6Vq7KYnTtTSoCFv6dLg2ySU79AnKC8Vs26T1P3TajTbcSRrNBWgY3uPNY ToB+Aqxp46dfP8WGfMMx871UfsDQsbSquRojesYKAzVIiI/TtvgfadBti yTEYM+5OebcXYLLeHEG4N8hWTyldh4t6gQSZsvxFKKgOEOWHu+UM3cpCW RJaSUmmft6i/DHdTHoZCot7XzKZvUWtHuNx4v0dj4ltaETL1e/sV9EvLT Q==; X-IronPort-AV: E=McAfee;i="6600,9927,10998"; a="3802767" X-IronPort-AV: E=Sophos;i="6.06,192,1705392000"; d="scan'208";a="3802767" Received: from orviesa007.jf.intel.com ([10.64.159.147]) by fmvoesa109.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 28 Feb 2024 22:40:31 -0800 X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.06,192,1705392000"; d="scan'208";a="8075530" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orviesa007.jf.intel.com with ESMTP; 28 Feb 2024 22:40:25 -0800 From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , Igor Mammedov , Eduardo Habkost , Marcel Apfelbaum , =?utf-8?q?Philippe_Mathieu-D?= =?utf-8?q?aud=C3=A9?= , Yanan Wang , "Michael S. Tsirkin" , Richard Henderson , Ani Sinha , Peter Xu , Cornelia Huck , =?utf-8?q?Daniel_P=2E_Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: kvm@vger.kernel.org, qemu-devel@nongnu.org, Michael Roth , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang , xiaoyao.li@intel.com Subject: [PATCH v5 27/65] i386/tdx: Wire CPU features up with attributes of TD guest Date: Thu, 29 Feb 2024 01:36:48 -0500 Message-Id: <20240229063726.610065-28-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20240229063726.610065-1-xiaoyao.li@intel.com> References: <20240229063726.610065-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Received-SPF: pass client-ip=192.198.163.15; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -5 X-Spam_score: -0.6 X-Spam_bar: / X-Spam_report: (-0.6 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.102, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.596, HK_RANDOM_FROM=0.999, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 autolearn=no 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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org For QEMU VMs, PKS is configured via CPUID_7_0_ECX_PKS and PMU is configured by x86cpu->enable_pmu. Reuse the existing configuration interface for TDX VMs. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- target/i386/kvm/tdx.c | 13 +++++++++++++ 1 file changed, 13 insertions(+) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index b6295a644566..262e86fd2c67 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -33,6 +33,8 @@ (1U << KVM_FEATURE_MSI_EXT_DEST_ID)) #define TDX_TD_ATTRIBUTES_SEPT_VE_DISABLE BIT_ULL(28) +#define TDX_TD_ATTRIBUTES_PKS BIT_ULL(30) +#define TDX_TD_ATTRIBUTES_PERFMON BIT_ULL(63) #define TDX_ATTRIBUTES_MAX_BITS 64 @@ -477,6 +479,15 @@ static int tdx_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) return 0; } +static void setup_td_guest_attributes(X86CPU *x86cpu) +{ + CPUX86State *env = &x86cpu->env; + + tdx_guest->attributes |= (env->features[FEAT_7_0_ECX] & CPUID_7_0_ECX_PKS) ? + TDX_TD_ATTRIBUTES_PKS : 0; + tdx_guest->attributes |= x86cpu->enable_pmu ? TDX_TD_ATTRIBUTES_PERFMON : 0; +} + int tdx_pre_create_vcpu(CPUState *cpu, Error **errp) { MachineState *ms = MACHINE(qdev_get_machine()); @@ -499,6 +510,8 @@ int tdx_pre_create_vcpu(CPUState *cpu, Error **errp) return r; } + setup_td_guest_attributes(x86cpu); + init_vm->cpuid.nent = kvm_x86_arch_cpuid(env, init_vm->cpuid.entries, 0); init_vm->attributes = tdx_guest->attributes;