From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.9]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 80E2923EABC; Fri, 17 Oct 2025 05:29:26 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.9 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760678968; cv=none; b=mRP/eLDTwqvgSca3MJwsJoHgqTRTkfY6K5YcZOoIJHNhjAFX+M9loaCyyzL94E4657kvIMS+J/4woHvwB0wrRpkUPn7HBti5ZHhvD5ZD4pbgTuX7vRPNGgnijwypEkVznfye92ecDZbdxxzDjJSndU3SIE2UHnn6iG2cnQvSMmI= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1760678968; c=relaxed/simple; bh=4FONppQg2BLdwN/d+WJOotcyUnysRLJeHGxkiBtYy3U=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=XRWztYxEDR3RBCnZsd8nrYG2ocPAKWLeefD5eO/4+ZdEMdkhGV0cjijs7Gk1UuywjVSiXWG7BTxxTADUjmQy9pPS+AeMrq4EsHGFQTq945f+a7HGEZ8fZUBGw1bpEbYuLfXHHmS1CsIONXGPBpcddrJsKKWOiUTVG+FXRv+2VKQ= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com; spf=pass smtp.mailfrom=linux.intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=VNgIL4at; arc=none smtp.client-ip=192.198.163.9 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=linux.intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="VNgIL4at" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1760678966; x=1792214966; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=4FONppQg2BLdwN/d+WJOotcyUnysRLJeHGxkiBtYy3U=; b=VNgIL4atGFHg6I+BYuqZBIxa4nbMVnD1E6p5yjMeeLGzvfNkWYiwgnpk D/cgh/XZnU+pxgKL71bzG8+ydsS5/rDkgonTIwIhkrO6XxhttSUN605Ur CZlq/NeGjEcjDES8cuTPLPZLZ3CwG726pFRMf92pToaC1K72gPqSHGkoH F0H0ENMTkwO3PvFnreSEEJPilrvckAAfKqXMe0N8aM+aFHEamU+QzKm0p 0hCrGE2lWSqhVKezUct7QzANk8cmCkIr8xMGe9b3BlsasRg0xvXKa0xxo PPJHaJBP8FRkHwybs9tDO4LuXqvg/CDJ/YcVdRISHaXk6iBFwBqCHbarM A==; X-CSE-ConnectionGUID: KUobU3PJRPSiyTIW98dlcg== X-CSE-MsgGUID: M1DL7LHeQpGDicA41S/n0w== X-IronPort-AV: E=McAfee;i="6800,10657,11584"; a="73556030" X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="73556030" Received: from fmviesa008.fm.intel.com ([10.60.135.148]) by fmvoesa103.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2025 22:29:26 -0700 X-CSE-ConnectionGUID: 2V3nfKtXQAa6e5ow4GMspw== X-CSE-MsgGUID: pWjESwP4SY6tOGwbr2mamg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.19,234,1754982000"; d="scan'208";a="183052436" Received: from yinghaoj-desk.ccr.corp.intel.com (HELO [10.238.1.225]) ([10.238.1.225]) by fmviesa008-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 16 Oct 2025 22:29:24 -0700 Message-ID: <4385b47e-391e-460a-8646-a499747d738e@linux.intel.com> Date: Fri, 17 Oct 2025 13:29:22 +0800 Precedence: bulk X-Mailing-List: linux-kernel@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 2/2] KVM: TDX: WARN if a SEAMCALL VM-Exit makes its way out to KVM To: Sean Christopherson Cc: Paolo Bonzini , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Kai Huang , Xiaoyao Li , Rick Edgecombe , Dan Williams References: <20251016182148.69085-1-seanjc@google.com> <20251016182148.69085-3-seanjc@google.com> Content-Language: en-US From: Binbin Wu In-Reply-To: <20251016182148.69085-3-seanjc@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 10/17/2025 2:21 AM, Sean Christopherson wrote: > WARN if KVM observes a SEAMCALL VM-Exit while running a TD guest, as the > TDX-Module is supposed to inject a #UD, per the "Unconditionally Blocked > Instructions" section of the TDX-Module base specification. > > Reported-by: Xiaoyao Li > Signed-off-by: Sean Christopherson Reviewed-by: Binbin Wu