From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.7]) (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 885B2306D2A for ; Mon, 26 Jan 2026 10:16:35 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.7 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769422598; cv=none; b=ukC26AqBQaQC4rX6H7HgfBIg6cHoJCo51NOAh8c7z/kHUJxUHEv7zSIWSexfEcQrn7puF9oZn0ZmckWwXn/E02FGBOol3/YIFp0Va4yspCp4oCO1Nm5t6q/Ir7QrJWw64Owsl1kCvICF6L0ZXnMzxqbhGNMd4sRiH6oc4ZfvjTg= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769422598; c=relaxed/simple; bh=upqJG0mb/UgBMLpqOxXHyNZDH9RXuWR+enIz3PWmenU=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=Rl0Fzyvc8Ncse1D0r91A4+839U6BCCIDzumF4YKbpRwatc4FignJqJKCBT8gCP3G8kNaBAfrv6roHdwhKZnoX+bWSxO8Y6/iB90+wVzFMFC1qX1oTgGeJjfwpEYKUjAWZ0t7rr+cPiRyfuzdU41M7HE/cPgnrM/dgLaO6bmp0Q4= 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=EoHtafBL; arc=none smtp.client-ip=192.198.163.7 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="EoHtafBL" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1769422595; x=1800958595; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=upqJG0mb/UgBMLpqOxXHyNZDH9RXuWR+enIz3PWmenU=; b=EoHtafBLsgAmbs/zU4dE+m4RZNP2b/cFYlMxmOLmMM6xpVJwPjRuaGZq H2blrKWKvrObtMWk0lqTkHpJXfqt0N/nQCvUnuHhiypyBFGq9KEd2ANsZ eAU4f37nin9r73xvNqHsIx4uJgynP5y1eA6+2MawR8IBSg/QY2FxzWjTa /LVzvprjfGOU7KW9fxRrwdTugrZJ+uTES/BH41ULq/QKVdSlQZTpr1Eif ekrpNfkyuD2wHZy1QgakaNPoPalMZyfj+eifRWIXONT16h2iTALcvy9WC I12XEuMtRpgG4h8HZzfs4A7xKrpb6QsCx0eTAJYueuOt4SVJbK3zQNwgg g==; X-CSE-ConnectionGUID: sK2EGw8wRwSxNHVsS90zWw== X-CSE-MsgGUID: kL4wYa5vQVywkAYKBDaNDg== X-IronPort-AV: E=McAfee;i="6800,10657,11682"; a="96060839" X-IronPort-AV: E=Sophos;i="6.21,254,1763452800"; d="scan'208";a="96060839" Received: from fmviesa005.fm.intel.com ([10.60.135.145]) by fmvoesa101.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2026 02:16:35 -0800 X-CSE-ConnectionGUID: rLYSWDcASnelEJ8i4nDXLA== X-CSE-MsgGUID: fxnPEguqTQWzt5RCiktQbg== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,254,1763452800"; d="scan'208";a="212118051" Received: from krybak-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.246.55]) by fmviesa005-auth.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2026 02:16:27 -0800 Date: Mon, 26 Jan 2026 12:16:24 +0200 From: Tony Lindgren To: Chao Gao Cc: linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, kvm@vger.kernel.org, x86@kernel.org, reinette.chatre@intel.com, ira.weiny@intel.com, kai.huang@intel.com, dan.j.williams@intel.com, yilun.xu@linux.intel.com, sagis@google.com, vannapurve@google.com, paulmck@kernel.org, nik.borisov@suse.com, zhenzhong.duan@intel.com, seanjc@google.com, rick.p.edgecombe@intel.com, kas@kernel.org, dave.hansen@linux.intel.com, vishal.l.verma@intel.com, Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" Subject: Re: [PATCH v3 11/26] x86/virt/seamldr: Block TDX Module updates if any CPU is offline Message-ID: References: <20260123145645.90444-1-chao.gao@intel.com> <20260123145645.90444-12-chao.gao@intel.com> Precedence: bulk X-Mailing-List: linux-coco@lists.linux.dev List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20260123145645.90444-12-chao.gao@intel.com> On Fri, Jan 23, 2026 at 06:55:19AM -0800, Chao Gao wrote: > P-SEAMLDR requires every CPU to call the SEAMLDR.INSTALL SEAMCALL during > updates. So, every CPU should be online. > > Check if all CPUs are online and abort the update if any CPU is offline at > the very beginning. Without this check, P-SEAMLDR will report failure at a > later phase where the old TDX module is gone and TDs have to be killed. Reviewed-by: Tony Lindgren