From mboxrd@z Thu Jan 1 00:00:00 1970 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 A2F4DC3ABC0 for ; Thu, 8 May 2025 15:14:30 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1uD2q0-0004rm-7j; Thu, 08 May 2025 11:07:04 -0400 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 1uD2ps-0004Hp-Av for qemu-devel@nongnu.org; Thu, 08 May 2025 11:06:56 -0400 Received: from mgamail.intel.com ([192.198.163.7]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1uD2pk-0007RF-9f for qemu-devel@nongnu.org; Thu, 08 May 2025 11:06:55 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1746716808; x=1778252808; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=JW2hZxKpIvEGOx5tP0im0t9/c+qk8a14dSXIWzZZ4k4=; b=ZjJr9OziDH7VLfoggHBCseacMB/KKks2dBwn3Z2Ac7dLK5pu9e+bkdLk P9w2VuP/5rHiXDp47sxUYj7fFxU63R516VFSBL8CFxqKXhS4hax8toUKO NHppqHfsEAPDJlBY+Tqf/N3ws892FYrEi5S3C1VY2y+pRY7C9NFy6TMA9 /sewm8DRDH6ipLTni/MT+28U/xVrzMm2P82ClWaFOJ8dQa16MRni9mIId G1KMnK656snHB7SLwtEEGwRM+VgbqlD+duT6D9CmJODu0sT5XT7SY6oad jhOX8h+ek9kU3ZR0bhirPcQLoOOQ3F51p/UxNzfmX5MaihEh5pMpzFknN w==; X-CSE-ConnectionGUID: HSda3LmdTzG53mIdWBZ56Q== X-CSE-MsgGUID: cRsusTSnSNCUoxYCmv3Riw== X-IronPort-AV: E=McAfee;i="6700,10204,11427"; a="73888228" X-IronPort-AV: E=Sophos;i="6.15,272,1739865600"; d="scan'208";a="73888228" Received: from orviesa005.jf.intel.com ([10.64.159.145]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 08 May 2025 08:06:18 -0700 X-CSE-ConnectionGUID: ZU5LhrNNRr6svUSkdbU55w== X-CSE-MsgGUID: j7Yn9Wz8TJi77uhl++Amcw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.15,272,1739865600"; d="scan'208";a="141440084" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by orviesa005.jf.intel.com with ESMTP; 08 May 2025 08:06:16 -0700 From: Xiaoyao Li To: Paolo Bonzini , =?UTF-8?q?Daniel=20P=2E=20Berrang=C3=A9?= Cc: "Michael S. Tsirkin" , Markus Armbruster , Francesco Lavra , Marcelo Tosatti , kvm@vger.kernel.org, qemu-devel@nongnu.org, =?UTF-8?q?Philippe=20Mathieu-Daud=C3=A9?= , Zhao Liu , Rick Edgecombe , Xiaoyao Li Subject: [PATCH v9 27/55] i386/tdx: Enable user exit on KVM_HC_MAP_GPA_RANGE Date: Thu, 8 May 2025 10:59:33 -0400 Message-ID: <20250508150002.689633-28-xiaoyao.li@intel.com> X-Mailer: git-send-email 2.43.0 In-Reply-To: <20250508150002.689633-1-xiaoyao.li@intel.com> References: <20250508150002.689633-1-xiaoyao.li@intel.com> MIME-Version: 1.0 Content-Transfer-Encoding: 8bit Received-SPF: pass client-ip=192.198.163.7; envelope-from=xiaoyao.li@intel.com; helo=mgamail.intel.com X-Spam_score_int: -47 X-Spam_score: -4.8 X-Spam_bar: ---- X-Spam_report: (-4.8 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-1.416, 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=0.999, RCVD_IN_DNSWL_MED=-2.3, RCVD_IN_VALIDITY_RPBL_BLOCKED=0.001, RCVD_IN_VALIDITY_SAFE_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+qemu-devel=archiver.kernel.org@nongnu.org Sender: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org KVM translates TDG.VP.VMCALL to KVM_HC_MAP_GPA_RANGE, and QEMU needs to enable user exit on KVM_HC_MAP_GPA_RANGE in order to handle the memory conversion requested by TD guest. Signed-off-by: Xiaoyao Li Reviewed-by: Zhao Liu --- changes in v6: - new patch; --- target/i386/kvm/tdx.c | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/target/i386/kvm/tdx.c b/target/i386/kvm/tdx.c index b0ee50d76208..0a6db6095e3e 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -19,6 +19,8 @@ #include "system/system.h" #include "exec/ramblock.h" +#include + #include "hw/i386/e820_memory_layout.h" #include "hw/i386/tdvf.h" #include "hw/i386/x86.h" @@ -383,6 +385,11 @@ static int tdx_kvm_init(ConfidentialGuestSupport *cgs, Error **errp) } } + /* TDX relies on KVM_HC_MAP_GPA_RANGE to handle TDG.VP.VMCALL */ + if (!kvm_enable_hypercall(BIT_ULL(KVM_HC_MAP_GPA_RANGE))) { + return -EOPNOTSUPP; + } + qemu_add_machine_init_done_notifier(&tdx_machine_done_notify); tdx_guest = tdx; -- 2.43.0