From nobody Mon Feb 9 22:38:38 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=1659427587; cv=none; d=zohomail.com; s=zohoarc; b=A4pU80MlKaX2eIs35FyALWI9yyr0DKKHTiojedhK5UwsYfOdyrRrwa3I3yF3aaSlAjyCIP0eTopj79KHypNkx9I8VG8qUt3dPShTeSiZ9O8aL8c2JGDYJDomBSf+3W6rHoaKeza4tSlv+bn/w7UKhUj+0YK2uNwm4rTSnhUYqJk= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1659427587; h=Content-Transfer-Encoding:Cc:Date:From:In-Reply-To:List-Subscribe:List-Post:List-Id:List-Archive:List-Help:List-Unsubscribe:MIME-Version:Message-ID:References:Sender:Subject:To; bh=ftpAUR0Dk+eAL9UxLyyXGQMIG6muYcUVDqHiA3FnZ30=; b=c1lkU5Ltus987weXVwzwClCDHTjjo53Je5GGJmcWF8BEZaoDLPpPucMVOkTIiK++4NhGU1g28FpDaUtzFMnuZNstbaCwCB0s3EWjV17qtpOlayaI1tslwXXrYlexhbKYWksaKfeX3JKm77kcfebinwtal6Yj5VTkUtPdJd09lgQ= 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 1659427587902685.5258129524995; Tue, 2 Aug 2022 01:06:27 -0700 (PDT) Received: from localhost ([::1]:56390 helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oImv2-0001ws-4u for importer@patchew.org; Tue, 02 Aug 2022 04:06:24 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]:57534) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oImdg-0004Ox-AN for qemu-devel@nongnu.org; Tue, 02 Aug 2022 03:48:28 -0400 Received: from mga11.intel.com ([192.55.52.93]:8273) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oImde-0005iP-JJ for qemu-devel@nongnu.org; Tue, 02 Aug 2022 03:48:28 -0400 Received: from orsmga008.jf.intel.com ([10.7.209.65]) by fmsmga102.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 02 Aug 2022 00:48:25 -0700 Received: from lxy-dell.sh.intel.com ([10.239.48.38]) by orsmga008.jf.intel.com with ESMTP; 02 Aug 2022 00:48:21 -0700 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1659426506; x=1690962506; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=QilC9i3ORJNEU51WnLngL9ALNf5JfJhb53MR6bxo38Y=; b=OnmwRBjrDTs4wBiEz/wUK7krIwKziAzfIPaliA/59UKmkPkUCnUsi1vx VudBCkQN/vKDI4KbpybErCvfHMV1+Zfvw73W4NxqUq1gR3GImrRJLXXzy xm172bXta4RIMPU3UcxqVfd8f6zPK8ZIdoxcfz8qyj+NxYOoeeVxFPtph NNTXe+zksPCREgtZIy5xbQzGlgKT5ggzUaX/7HUR7RxgkkxkP62WV8eTU bfVLpe2xNjnSFweVoJXYPAAsILtyLOI1a+IN3HKrxCnk5r3ZTnh8Sj+FU TuB1vFdOd9Hr3++HpqsDlIVsOBWb484jx8UG9fx8emUX1Wsh8Yg8tzK3K w==; X-IronPort-AV: E=McAfee;i="6400,9594,10426"; a="286908480" X-IronPort-AV: E=Sophos;i="5.93,210,1654585200"; d="scan'208";a="286908480" X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="5.93,210,1654585200"; d="scan'208";a="630603858" From: Xiaoyao Li To: Paolo Bonzini , Isaku Yamahata , Gerd Hoffmann , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Richard Henderson , "Michael S . Tsirkin" , Marcel Apfelbaum , Cornelia Huck , Marcelo Tosatti , Laszlo Ersek , Eric Blake Cc: Connor Kuehl , erdemaktas@google.com, kvm@vger.kernel.org, qemu-devel@nongnu.org, seanjc@google.com, xiaoyao.li@intel.com Subject: [PATCH v1 07/40] i386/tdx: Introduce is_tdx_vm() helper and cache tdx_guest object Date: Tue, 2 Aug 2022 15:47:17 +0800 Message-Id: <20220802074750.2581308-8-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.27.0 In-Reply-To: <20220802074750.2581308-1-xiaoyao.li@intel.com> References: <20220802074750.2581308-1-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=192.55.52.93; envelope-from=xiaoyao.li@intel.com; helo=mga11.intel.com X-Spam_score_int: -51 X-Spam_score: -5.2 X-Spam_bar: ----- X-Spam_report: (-5.2 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.082, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.998, HK_RANDOM_FROM=0.998, RCVD_IN_DNSWL_HI=-5, SPF_HELO_NONE=0.001, SPF_PASS=-0.001, T_SCC_BODY_TEXT_LINE=-0.01 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" X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1659427588803100001 Content-Type: text/plain; charset="utf-8" It will need special handling for TDX VMs all around the QEMU. Introduce is_tdx_vm() helper to query if it's a TDX VM. Cache tdx_guest object thus no need to cast from ms->cgs every time. Signed-off-by: Xiaoyao Li Acked-by: Gerd Hoffmann --- target/i386/kvm/tdx.c | 13 +++++++++++++ target/i386/kvm/tdx.h | 10 ++++++++++ 2 files changed, 23 insertions(+) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index 89f81f7d7082..fdd6bec58758 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -20,8 +20,16 @@ #include "kvm_i386.h" #include "tdx.h" =20 +static TdxGuest *tdx_guest; + static struct kvm_tdx_capabilities *tdx_caps; =20 +/* It's valid after kvm_confidential_guest_init()->kvm_tdx_init() */ +bool is_tdx_vm(void) +{ + return !!tdx_guest; +} + enum tdx_ioctl_level{ TDX_PLATFORM_IOCTL, TDX_VM_IOCTL, @@ -108,10 +116,15 @@ static void get_tdx_capabilities(void) =20 int tdx_kvm_init(MachineState *ms, Error **errp) { + TdxGuest *tdx =3D (TdxGuest *)object_dynamic_cast(OBJECT(ms->cgs), + TYPE_TDX_GUEST); + if (!tdx_caps) { get_tdx_capabilities(); } =20 + tdx_guest =3D tdx; + return 0; } =20 diff --git a/target/i386/kvm/tdx.h b/target/i386/kvm/tdx.h index c8a23d95258d..4036ca2f3f99 100644 --- a/target/i386/kvm/tdx.h +++ b/target/i386/kvm/tdx.h @@ -1,6 +1,10 @@ #ifndef QEMU_I386_TDX_H #define QEMU_I386_TDX_H =20 +#ifndef CONFIG_USER_ONLY +#include CONFIG_DEVICES /* CONFIG_TDX */ +#endif + #include "exec/confidential-guest-support.h" =20 #define TYPE_TDX_GUEST "tdx-guest" @@ -16,6 +20,12 @@ typedef struct TdxGuest { uint64_t attributes; /* TD attributes */ } TdxGuest; =20 +#ifdef CONFIG_TDX +bool is_tdx_vm(void); +#else +#define is_tdx_vm() 0 +#endif /* CONFIG_TDX */ + int tdx_kvm_init(MachineState *ms, Error **errp); =20 #endif /* QEMU_I386_TDX_H */ --=20 2.27.0