From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from smtp.kernel.org (aws-us-west-2-korg-mail-alma10-1.taild15c8.ts.net [100.103.45.18]) (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 F1A5E4D98EF; Fri, 9 Oct 2026 13:33:01 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=100.103.45.18 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791552783; cv=none; b=G0Rf+mJbBu14KLSVOWOIWCPYDhVmeyRRDjWZ8qZhSr/sMlrBWhjI82F0ke6zRbra8mZenvnWCgimCcgGDjkmqJWDFkmNAx8HqTBA5OFA1SKmx/WJ73iJwYJRl4dHdqup6+vUXFs2iwDX5Uu1qK3TIYl0amnFyqPGVTOesp7ToZo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1791552783; c=relaxed/simple; bh=WvmolwwrU2Uh/T6wngbddJ+1APU+26EM1WIWvtOFCqk=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=rk2tLTSFl1Wh5L5AweFJGpWNDPjCiXZrQLIdRD9tHgvaN2ZgDrISYvoftJ6Tq3AexJ6v59iHvA0D7r+WzW4Kc/PQCpe7g8TZwGhcN1EXJvsT2jqJdwJszIx/E8z5WK7Y76FdVFFWKAqqF210UltNB/UcS1JcbpBqBQcGEWzWkxE= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b=DXVaLJ98; arc=none smtp.client-ip=100.103.45.18 Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=kernel.org header.i=@kernel.org header.b="DXVaLJ98" Received: by smtp.kernel.org (Postfix) with ESMTPSA id ACF821F00898; Fri, 9 Oct 2026 13:33:00 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=kernel.org; s=k20260515; t=1791552781; bh=vtNGdwX9226oKEHJSuxKWx/vJU3Syo0UVvzCZlo2IdA=; h=Date:From:To:Cc:Subject:References:In-Reply-To; b=DXVaLJ98u2plTIRnoMSLXP6GaMuOLWVBYCu0VJHJinRngPwu3iVMGSCGu89MUhdzz m3VfNipI5ap+B7IuSD2lRkBJzLt3c1Ve+hds6+sN/i8u2937w0rxc+S33dd1IZKPNX C4R+cIF3BA7hHzaeN17XXnr2YhgjNUI4FWBkuBZqnRX257zZihvI6Gxi8qPvaLyUsW K0ew0ofmD0nIaZaeA55wIfzSetqxvmDWzIjFkADgji2d1Apra+L472/tQVtBdhsW7F YurNQyGsXVVcgQkPtL+uSOHx8iqlddx5pyOemEDdQJPfo01ECMb3zEVRdRyr0Qml3j avxDOPCKndsDg== Received: from phl-compute-01.internal (phl-compute-01.internal [10.202.2.41]) by mailfauth.ams.internal (Postfix) with ESMTP id D77EB198003A; Fri, 9 Oct 2026 09:32:55 -0400 (EDT) Received: from phl-frontend-04 ([10.202.2.163]) by phl-compute-01.internal (MEProxy); Fri, 09 Oct 2026 09:32:59 -0400 X-ME-Sender: X-ME-Received: X-ME-Proxy-Cause: dmFkZTGw5XdlRQm/UeDPoFIjeNbXbPnx8bZKK8wNLgIIkenoSYaYluSVDqoEtJ7YJfkXfj SF5QA7JmvJ9TnpnZhEaMV8E47/6fNOjKjdatHIQMop5uOCvBJUg2GdWfbRpwKtQZlyDb1f 4iFi8iyEOVZZFFNaKbdrMf2XxrNJ20vHjA4tZwOHtkkvYbwzu/TQc701nBG+0ekAOQTZ0Q 6DTBpW2EAKK6yn0F9DJDIuzmgUpDFbYYIg9WOBs3vffRv+G6WvdqO7aLd/wJn6Qto4n2O3 GIPlzUI9UjhLX+lnWUzv29Op846XeT2pHUzppVGFFBRWZ9006vKdxFMdVcoI/iO0EisgYZ Uo251Ymb9JuVBFuN3P/glhQuS9xPQFqXlrJz8ybhu/nhOkkZkkfZxDmNZ0xxfgwH5pEb/R ZRHqqFXz+hfr1hOJL6gbXXQiuiSNCc9S8plaIzU3E/yZp7kLVr3yvKbg94dlDggfHXw4YH Dz1W+zdubZR72kyPpLMbJa1FOTlwE9IGYESfK5UO1pON7ECrpjd/bc++WeCDY6rvdBn36n YmtuuRkxpxA64ez22ZbNKf/hHorKk6D6IrmKbLQETbMimo1IQxFQz4m5KOkWqzpquigV/s C58c+92/Hf2J0g1U19bke7hs2nhzxRY+y87580Ly9x7QgFLne+3tbJrih9xw X-ME-Proxy: Feedback-ID: i10464835:Fastmail Received: by mail.messagingengine.com (Postfix) with ESMTPA; Fri, 9 Oct 2026 09:32:54 -0400 (EDT) Date: Fri, 9 Oct 2026 14:32:53 +0100 From: Kiryl Shutsemau To: Xu Yilun Cc: x86@kernel.org, linux-coco@lists.linux.dev, linux-kernel@vger.kernel.org, Rick Edgecombe , Dave Hansen , dave.hansen@intel.com, kvm@vger.kernel.org, yilun.xu@intel.com, xiaoyao.li@intel.com, sohil.mehta@intel.com, adrian.hunter@intel.com, kishen.maloor@intel.com, tony.lindgren@linux.intel.com, peter.fang@intel.com, baolu.lu@linux.intel.com, zhenzhong.duan@intel.com, chao.gao@intel.com, artem.bityutskiy@linux.intel.com, nik.borisov@suse.com Subject: Re: [PATCH v3 4/6] x86/virt/tdx: Make TDX module initialize the extensions Message-ID: References: <20261006-tdx-module-ext-v3-0-db52cb05b918@linux.intel.com> <20261006-tdx-module-ext-v3-4-db52cb05b918@linux.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: <20261006-tdx-module-ext-v3-4-db52cb05b918@linux.intel.com> On Tue, Oct 06, 2026 at 01:41:48AM +0800, Xu Yilun wrote: > TDX module extensions need memory for their execution environment > to serve SEAMCALL leafs. Several add-on features depend on the > extensions to execute their SEAMCALL leafs. > > After providing all required memory to the TDX module, initialize TDX > module extensions via TDH.EXT.INIT, then those add-on features can use > their SEAMCALL leafs normally. > > Signed-off-by: Xu Yilun > Reviewed-by: Xiaoyao Li > Reviewed-by: Tony Lindgren > Reviewed-by: Adrian Hunter Reviewed-by: Kiryl Shutsemau (Meta) -- Kiryl Shutsemau / Kirill A. Shutemov