From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Spam-Checker-Version: SpamAssassin 3.4.0 (2014-02-07) on aws-us-west-2-korg-lkml-1.web.codeaurora.org Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id 540F2C433EF for ; Tue, 16 Nov 2021 12:50:22 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 2E78B61BF6 for ; Tue, 16 Nov 2021 12:50:22 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S236418AbhKPMxS (ORCPT ); Tue, 16 Nov 2021 07:53:18 -0500 Received: from mail.kernel.org ([198.145.29.99]:59800 "EHLO mail.kernel.org" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S236307AbhKPMxN (ORCPT ); Tue, 16 Nov 2021 07:53:13 -0500 Received: by mail.kernel.org (Postfix) with ESMTPSA id 84E3861548; Tue, 16 Nov 2021 12:50:15 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=linuxfoundation.org; s=korg; t=1637067016; bh=mrvEq5wnkMuAzToky9aXug/TyOK6An+807oCmVO4+k0=; h=Date:From:To:Cc:Subject:References:In-Reply-To:From; b=SNZnnzyJqAwSoPzBnJC4cUpuMcrIMlCu9dAelnBtmVEJt43LdYWL/uQFfrYWOkrTT QNF5nfEBdhyWgXbFsW1V4A+IIK5IoWyDEwo5hwPhggoKVBl3z++4TKIgt8c6+VZEeq T2DEGZQZm9UXTiU6Lj5YR4bN4wGM0qNSUlFqGfs8= Date: Tue, 16 Nov 2021 13:50:13 +0100 From: Greg KH To: Borislav Petkov Cc: brijesh.singh@amd.com, thomas.lendacky@amd.com, stable@vger.kernel.org, =?iso-8859-1?Q?J=F6rg_R=F6del?= Subject: Re: FAILED: patch "[PATCH] x86/sev: Make the #VC exception stacks part of the default" failed to apply to 5.15-stable tree Message-ID: References: <1637060086211132@kroah.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org On Tue, Nov 16, 2021 at 12:52:44PM +0100, Borislav Petkov wrote: > On Tue, Nov 16, 2021 at 12:24:01PM +0100, Greg KH wrote: > > Nope, planning ahead: > > $ ~/linux/stable/commit_tree/id_found_in 7fae4c24a2b8 > > 5.16-rc1 queue-4.4 queue-4.9 queue-4.14 queue-4.19 queue-5.4 queue-5.10 queue-5.14 queue-5.15 > > > > That commit is in the current -rc releases right now. > > Bah, there's stuff in-flight. > > > The problem with this commit is that the cc_platform_has() function is > > not present. I thought about backporting it as well, but that seemed > > odd as I do not think that feature is in the 5.15 and older kernels, > > right? > > The cc_platform_has() was a small set: > > https://lore.kernel.org/r/YX%2B5ekjTbK3rhX%2BY@zn.tnic > > which wants to keep all those checks confidential guests are going to do > around the code, sane. So you don't really need it but... > > > Or is it ok to take the cc_platform_has() function? > > ... it will simplify all those backports which use it in the future. And > we will use cc_platform_has() from now on in common code. > > In any case, we're going to backport it into SLE just for that reason - > so that it can ease backports and there's no kABI nightmares. Ok, sounds good, I'll go queue them up now and see how the builds go to save you the trouble of backporting into SLE... greg k-h