From patchwork Tue Nov 5 06:23:36 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Xiaoyao Li X-Patchwork-Id: 13862470 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 1C3DDD1CA3A for ; Tue, 5 Nov 2024 06:43:45 +0000 (UTC) Received: from localhost ([::1] helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1t8DDO-0008DX-EX; Tue, 05 Nov 2024 01:38:58 -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 1t8DD3-0007U7-NE for qemu-devel@nongnu.org; Tue, 05 Nov 2024 01:38:38 -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 1t8DD1-0001vj-Bi for qemu-devel@nongnu.org; Tue, 05 Nov 2024 01:38:37 -0500 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1730788715; x=1762324715; h=from:to:cc:subject:date:message-id:in-reply-to: references:mime-version:content-transfer-encoding; bh=yTZNX+NQ5Q3yptqAX7/efQmRoNrRURBtZaK/2Teq53U=; b=QHB5L4XmfGlnU0sRpXAKdEb2awJCbNqlMkrALPT6EvFjhnNCISjEwFLS WX4emvncX7I/lKsOGgdV3iDy4YdOB3abuP9J1osHIvuH1OX0TNzaQPvlg +4ifuFm17tk8XxelbgKcxm5DgHHhsjWVm8HcwjQ4wJlNZYzubWdmgKHio j9swXG0CBShSq5uGuWeSdIxycPSVHcF9tUGn6cVBQFs9yJmIZSn4/MGFb tSZ2Pb6zXya+29NWzbBhHI860v7/VTxsp7/1eok0DX5V7dsLQP2f/7qSG /V490gypBxk9oD9oKyHcaLBOYKbpUrIsuWb9LN8+gqeayx/r/bikaKuBP A==; X-CSE-ConnectionGUID: 0ydHHBfaRw6qKh13/+JG4Q== X-CSE-MsgGUID: Je4kr+MxSsmSe4nL4UQ50A== X-IronPort-AV: E=McAfee;i="6700,10204,11222"; a="30689613" X-IronPort-AV: E=Sophos;i="6.11,199,1725346800"; d="scan'208";a="30689613" 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 22:38:23 -0800 X-CSE-ConnectionGUID: BJdYU1grQeKHRWNJj1QRwA== X-CSE-MsgGUID: M0YwmNanRkGKH2IyrQ+pEw== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.11,259,1725346800"; d="scan'208";a="83989093" Received: from lxy-clx-4s.sh.intel.com ([10.239.48.52]) by fmviesa009.fm.intel.com with ESMTP; 04 Nov 2024 22:38:19 -0800 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_Mathieu-Daud=C3=A9?= , Yanan Wang , Cornelia Huck , =?utf-8?q?Daniel_P=2E_Berrang=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 28/60] i386/tdx: Enable user exit on KVM_HC_MAP_GPA_RANGE Date: Tue, 5 Nov 2024 01:23:36 -0500 Message-Id: <20241105062408.3533704-29-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 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+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 --- 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 33d7ed039051..b34707e93f4d 100644 --- a/target/i386/kvm/tdx.c +++ b/target/i386/kvm/tdx.c @@ -20,6 +20,8 @@ #include "sysemu/sysemu.h" #include "exec/ramblock.h" +#include + #include "hw/i386/e820_memory_layout.h" #include "hw/i386/x86.h" #include "hw/i386/tdvf.h" @@ -362,6 +364,11 @@ 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;