From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mgamail.intel.com (mgamail.intel.com [192.198.163.11]) (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 A697632E729 for ; Mon, 26 Jan 2026 10:15:30 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=192.198.163.11 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769422532; cv=none; b=BV8zkcei10czWVlmwbRvcjPNywDizwEYTkmsQ5+4USRET6TsBF8ckydVxRHceQ95qjuGA9oxk1VpsKvz8br92C+ODQKxbahWOgOJ5NkBDUR3IjNufXHuPDAZVdMbmHUM0RSHqmZIdAx3xN4UVUDUVn4extitcB8rYojOMro/4Hw= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1769422532; c=relaxed/simple; bh=f6T20ZOU+YDhMqx083e2K9TNnBu3UMc8djTcwgcbARw=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=RzikgW3z+0doOmhCS+z36BBNG1j89yl79cn7AMwIavifHmL68B+foPPrcR/qC93rwhzSNWqmABfAJ8FSW8Sa46uIx7HyKV6Y8v1eSZ3+4goNsmZqYnE7i8Jpt23wleGnT8G75SXXPJJMTVY6XPcn3GEyX4Bi86iJ4kuYVX6hd0E= 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=fm6f1hoR; arc=none smtp.client-ip=192.198.163.11 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="fm6f1hoR" DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=intel.com; i=@intel.com; q=dns/txt; s=Intel; t=1769422531; x=1800958531; h=date:from:to:cc:subject:message-id:references: mime-version:in-reply-to; bh=f6T20ZOU+YDhMqx083e2K9TNnBu3UMc8djTcwgcbARw=; b=fm6f1hoR8O6tQNqqjqufPe+gHh28OLQFESFeoHbfkGzXIcf6V2bfDz1I R1o+Dw/V0bOCUMb4VzoVGk86vjrBQ/EOHozOlhMxwXwbcnEXlwKOI4yBq 1L+XTd81UOVRnPcjhUXfA60JiX0JkYjc7ht2tfnaOWGF2QP9qzcnkOG78 bkdtlrLdWyZ0tR+sVKXTvZUuJIiByYr61k9VYQ2qGRaq1TNX2g3ODEjv9 /znsglDejtJ3dsyfOJ4SUcfxMsBjzgj9qKSSU6cczWWEYW6OBT6ub9X5j P3clt3deWxa1h+7Y9mRCYOKG2/jQkZYbA4ftkSXFaV84b1rmHDML8I50M Q==; X-CSE-ConnectionGUID: lwcHVAl4Q3SrbKciTvt4PA== X-CSE-MsgGUID: fnQUYnhvQJypKBtfZrShuQ== X-IronPort-AV: E=McAfee;i="6800,10657,11682"; a="81230741" X-IronPort-AV: E=Sophos;i="6.21,254,1763452800"; d="scan'208";a="81230741" Received: from orviesa008.jf.intel.com ([10.64.159.148]) by fmvoesa105.fm.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2026 02:15:30 -0800 X-CSE-ConnectionGUID: pv39I91FSM+eqRwbVPQC9g== X-CSE-MsgGUID: 0GtnUSPpQXypK5Yn9iLE5A== X-ExtLoop1: 1 X-IronPort-AV: E=Sophos;i="6.21,254,1763452800"; d="scan'208";a="207669946" Received: from krybak-mobl1.ger.corp.intel.com (HELO localhost) ([10.245.246.55]) by orviesa008-auth.jf.intel.com with ESMTP/TLS/ECDHE-RSA-AES256-GCM-SHA384; 26 Jan 2026 02:15:23 -0800 Date: Mon, 26 Jan 2026 12:15:19 +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, Farrah Chen , Thomas Gleixner , Ingo Molnar , Borislav Petkov , "H. Peter Anvin" Subject: Re: [PATCH v3 08/26] x86/virt/seamldr: Retrieve P-SEAMLDR information Message-ID: References: <20260123145645.90444-1-chao.gao@intel.com> <20260123145645.90444-9-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: <20260123145645.90444-9-chao.gao@intel.com> On Fri, Jan 23, 2026 at 06:55:16AM -0800, Chao Gao wrote: > P-SEAMLDR returns its information e.g., version and supported features, in > response to the SEAMLDR.INFO SEAMCALL. > > This information is useful for userspace. For example, the admin can decide > which TDX module versions are compatible with the P-SEAMLDR according to > the P-SEAMLDR version. > > Add and export seamldr_get_info() which retrieves P-SEAMLDR information by > invoking SEAMLDR.INFO SEAMCALL in preparation for exposing P-SEAMLDR > version and other necessary information to userspace. Reviewed-by: Tony Lindgren