From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [198.175.65.20]) (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 D0D803F210B; Thu, 27 Aug 2026 11:21:16 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=198.175.65.20 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787829681; cv=none; b=sLNc+DgdSe5/Rm3Ngth+H0q844/DcJBPq5KNkIwo5WzEI5N16rh6PREFSnEWoIK4DlBOSIMQTTdhRHwGmUvDt20PDNbCf6dXuCA+gpHGtUBoERThESwZOoLt4mKhvr41e688EW+0ATqqBOdesCACqm6sieCZI9oaIkTiz2UGsK0= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1787829681; c=relaxed/simple; bh=rHbHMpWeZJyn7hIS7WVlw57xDOzTyULuqNzOeAv8564=; h=Message-ID:Date:MIME-Version:Subject:To:Cc:References:From: In-Reply-To:Content-Type; b=Ln5MDge9JPFpD66Nzw/f+CAWGDkuW3u845JfW1/QQ9rui3pwgih1OdcIWbIuHaNeBkAOKg4gWxpy1idrknEP0DtKDL/uee/V1TYe8PsnRFe7x0R15AyWSDoKEPGCKtluZLgbVr1mX1huSznakHcBPZmRcYSlGeDyUGaoGJQ/y6w= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com; spf=pass smtp.mailfrom=intel.com; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b=MW/vBlE/; arc=none smtp.client-ip=198.175.65.20 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=intel.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=intel.com Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=intel.com header.i=@intel.com header.b="MW/vBlE/" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1787829677; x=1819365677; h=message-id:date:mime-version:subject:to:cc:references: from:in-reply-to:content-transfer-encoding; bh=rHbHMpWeZJyn7hIS7WVlw57xDOzTyULuqNzOeAv8564=; b=MW/vBlE/HG8Umn/11o5ffbxzDDQ6RKnjaHaOTkaSqo+q8Ud2L6uLK02s 1L7T+j/m6qQqXJFpQcvZ6Kc685D+mNv3jbtzQS31FD4kaEsN6GX6A3mzg EPVLvOeWmu/p1phSm9XZ7k7+Ah8oisvF6l3d3I5lQ5Typ0bonaRmNut6G mAfkUamv0n9Mv/dckrF7JJ5Zl8MlzlRX4dwhknb3LEKl1C3klKutUfjpd tVNLfR85fL37NjvtGScp/bT09WHMhbQtosOzLpJu/HE/VdPwsyhKMwv5K gtDYpSLHZQo6lqbatfDRCkcNk/WhIHWlkf8lzMQssKY3NiKVCG/5GpYVS w==; X-CSE-ConnectionGUID: 4UwlA5qiT8etlk0LuaG1cw== X-CSE-MsgGUID: N7dppJO/Smma43G0mF/CUw== X-IronPort-AV: E=McAfee;i="6800,10657,11887"; a="88090213" X-IronPort-AV: E=Sophos;i="6.25,246,1779174000"; d="scan'208";a="88090213" Received: from orviesa004.jf.intel.com ([10.64.159.144]) by orvoesa112.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2026 04:21:15 -0700 X-CSE-ConnectionGUID: PvSf7o9tQyGbftur5NRnfQ== X-CSE-MsgGUID: 2DjN8I/pSRm0bOaMbd1njQ== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.25,246,1779174000"; d="scan'208";a="271647305" Received: from xiaoyaol-hp-g830.ccr.corp.intel.com (HELO [10.124.240.119]) ([10.124.240.119]) by orviesa004-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 27 Aug 2026 04:21:13 -0700 Message-ID: <15c473e0-1ea5-4d35-b4f2-e07b21f87e11@intel.com> Date: Thu, 27 Aug 2026 19:21:10 +0800 Precedence: bulk X-Mailing-List: kvm@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 User-Agent: Mozilla Thunderbird Subject: Re: [PATCH v2 3/8] KVM: VMX: Disallowing using to_vmx() in common VT code To: Sean Christopherson , Paolo Bonzini Cc: kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Rick Edgecombe , Binbin Wu , Kai Huang , Yan Zhao References: <20260826171246.777729-1-seanjc@google.com> <20260826171246.777729-4-seanjc@google.com> Content-Language: en-US From: Xiaoyao Li In-Reply-To: <20260826171246.777729-4-seanjc@google.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit On 8/27/2026 1:12 AM, Sean Christopherson wrote: > Poison to_vmx() in main.c and posted_intr.c so that attempting to interpret > the vCPU as a VMX vCPU will fail at compile time, as opposed to failing at > runtime, or worse corrupting state without outright failing. > > Note, to_tdx() is buried in tdx.c, i.e. isn't broadly reachable, and so > doesn't need the same treatment as to_vmx(). > > Signed-off-by: Sean Christopherson Reviewed-by: Xiaoyao Li