From nobody Wed Nov 27 08:41:43 2024 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=1700032692; cv=none; d=zohomail.com; s=zohoarc; b=AzNNVXTt01zk8omAUT0+zBHQcq65geL2SGxwy2sGX8t934g0TfsuvqpxOiR90m4raah125SWF2QTL2R20ival0NkelSPpv/udaNmFz2QB5sU+5Fb+xXAFItyKPzXhNwAS0D5gu+Y/m8EccqDGT41n7Dx8X/HunnYj1uH0ZiDlyE= ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d=zohomail.com; s=zohoarc; t=1700032692; 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=xtWpZR+qyz28LBFem5O29IP/TpPDWz/j8DShI4VDuog=; b=Kd9SQYyUPoCfc1vALjgKBytCaCuSInAdjZ4P6ebiEhWsGUEH0iES/900i3rL27vq6gMMJ2icWCoMGwXpRjlTgXXCdb1eGzj1NCDhjC8vZk/+HMux9Dyhg/ueL+xyXGKUH1jM41R9RDxWBFbtqU4PzJjPx9+ZiQST39wtuHZHUK4= 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 1700032692460862.5002474610626; Tue, 14 Nov 2023 23:18:12 -0800 (PST) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1r3A9o-0003Ch-6C; Wed, 15 Nov 2023 02:17:52 -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 1r3A9k-0002q2-BI for qemu-devel@nongnu.org; Wed, 15 Nov 2023 02:17:48 -0500 Received: from mgamail.intel.com ([192.55.52.115]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1r3A9e-0002JU-0N for qemu-devel@nongnu.org; Wed, 15 Nov 2023 02:17:48 -0500 Received: from orsmga003.jf.intel.com ([10.7.209.27]) by fmsmga103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 14 Nov 2023 23:17:40 -0800 Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orsmga003.jf.intel.com with ESMTP; 14 Nov 2023 23:17:34 -0800 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1700032661; x=1731568661; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=nZdM+hGGc5Ps2RWq9FXJySJBjr4mfWBTRO0PkGr5SF4=; b=ix09Ply1VosVrlBVYmt9QdDaYIo6l4+yxSckb9suB/9P0e84UdRBbMR2 aP+hQo4X+cTCPSBjn7c7Pe+O6RLrEM98xOITWK6RgHSx4o/tgG0zv69RJ yjC3JE1uY5r5g1nYDY3fffVhs/YgqZmuZlXObT1amxe6RhxWJhI9e0bx/ 8vY04T9D4lL7EOY+81LXAwzY3S6yljwTMsC/QAuEfHMQevLFVKKihZ+p5 tvi0IhHmH7LPGcUZS6eL1owwrqOXHI0QlfueEgaUykOR2oNtefU5C+Y+H QAg6EBHJWfHiQvSsu9wxFbKGCLXXe919Yj6o9EVcdfm5wW3IYQa52q05N w==; X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="390622542" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="390622542" X-ExtLoop1: 1 X-IronPort-AV: E=McAfee;i="6600,9927,10894"; a="714798026" X-IronPort-AV: E=Sophos;i="6.03,304,1694761200"; d="scan'208";a="714798026" From: Xiaoyao Li To: Paolo Bonzini , David Hildenbrand , Igor Mammedov , "Michael S . Tsirkin" , Marcel Apfelbaum , Richard Henderson , Peter Xu , =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Cornelia Huck , =?UTF-8?q?Daniel=20P=20=2E=20Berrang=C3=A9?= , Eric Blake , Markus Armbruster , Marcelo Tosatti Cc: qemu-devel@nongnu.org, kvm@vger.kernel.org, xiaoyao.li@intel.com, Michael Roth , Sean Christopherson , Claudio Fontana , Gerd Hoffmann , Isaku Yamahata , Chenyi Qiang Subject: [PATCH v3 19/70] i386/tdx: Introduce is_tdx_vm() helper and cache tdx_guest object Date: Wed, 15 Nov 2023 02:14:28 -0500 Message-Id: <20231115071519.2864957-20-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.34.1 In-Reply-To: <20231115071519.2864957-1-xiaoyao.li@intel.com> References: <20231115071519.2864957-1-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=192.55.52.115; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: 0 X-Spam_score: -0.1 X-Spam_bar: / X-Spam_report: (-0.1 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.001, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, HK_RANDOM_ENVFROM=0.999, HK_RANDOM_FROM=0.999, 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+importer=patchew.org@nongnu.org Sender: qemu-devel-bounces+importer=patchew.org@nongnu.org X-ZohoMail-DKIM: pass (identity @intel.com) X-ZM-MESSAGEID: 1700032693183100005 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 Reviewed-by: Isaku Yamahata --- changes in v3: - replace object_dynamic_cast with TDX_GUEST(); --- target/i386/kvm/tdx.c | 15 ++++++++++++++- target/i386/kvm/tdx.h | 10 ++++++++++ 2 files changed, 24 insertions(+), 1 deletion(-) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index cb0040187b27..cf8889f0a8f9 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -21,8 +21,16 @@ #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, @@ -114,15 +122,20 @@ static int get_tdx_capabilities(Error **errp) =20 int tdx_kvm_init(MachineState *ms, Error **errp) { + TdxGuest *tdx =3D TDX_GUEST(OBJECT(ms->cgs)); int r =3D 0; =20 ms->require_guest_memfd =3D true; =20 if (!tdx_caps) { r =3D get_tdx_capabilities(errp); + if (r) { + return r; + } } =20 - return r; + tdx_guest =3D tdx; + return 0; } =20 /* tdx guest */ 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 2.34.1