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 15D42C4332F for ; Tue, 16 Nov 2021 11:53:29 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id F25C1611C3 for ; Tue, 16 Nov 2021 11:53:28 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S235005AbhKPL4Z (ORCPT ); Tue, 16 Nov 2021 06:56:25 -0500 Received: from smtp-out2.suse.de ([195.135.220.29]:57888 "EHLO smtp-out2.suse.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235695AbhKPLz4 (ORCPT ); Tue, 16 Nov 2021 06:55:56 -0500 Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by smtp-out2.suse.de (Postfix) with ESMTPS id BF6611FD26; Tue, 16 Nov 2021 11:52:52 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_rsa; t=1637063572; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1pHocy3m1eJUtZ+QU7U0ItcnNOi9rY0WR9oDDl1Ki4U=; b=AGfVoCsjrGdl1/CAyKLYV7SOSmakMCifeVslBvKKttI0c7igZcq64ZBfRsFdn9sfhlc0lg ScuZvxSGvfFiDC7KdycFzRocQmn6Q4uFaaBSSRVvYCnE9onIbaoV4uCYZxCoIRa1hzdkZA AZ5owxG16KAhApfBRv0SlN9UNqWmaCM= DKIM-Signature: v=1; a=ed25519-sha256; c=relaxed/relaxed; d=suse.de; s=susede2_ed25519; t=1637063572; h=from:from:reply-to:date:date:message-id:message-id:to:to:cc:cc: mime-version:mime-version:content-type:content-type: content-transfer-encoding:content-transfer-encoding: in-reply-to:in-reply-to:references:references; bh=1pHocy3m1eJUtZ+QU7U0ItcnNOi9rY0WR9oDDl1Ki4U=; b=5gYzeYQsd4GX1d0oAQie7hNQqxiYxTymoeMTz/CO7Ygk6gjgGsfThXDopMoD6xUtCVG+0d J2KUY+QeIBUTmAAQ== Received: from imap2.suse-dmz.suse.de (imap2.suse-dmz.suse.de [192.168.254.74]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature ECDSA (P-521) server-digest SHA512) (No client certificate requested) by imap2.suse-dmz.suse.de (Postfix) with ESMTPS id AC6E213C0C; Tue, 16 Nov 2021 11:52:52 +0000 (UTC) Received: from dovecot-director2.suse.de ([192.168.254.65]) by imap2.suse-dmz.suse.de with ESMTPSA id 5IMLKpSbk2FdTwAAMHmgww (envelope-from ); Tue, 16 Nov 2021 11:52:52 +0000 Date: Tue, 16 Nov 2021 12:52:44 +0100 From: Borislav Petkov To: Greg KH Cc: brijesh.singh@amd.com, thomas.lendacky@amd.com, stable@vger.kernel.org, =?utf-8?B?SsO2cmcgUsO2ZGVs?= 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=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Precedence: bulk List-ID: X-Mailing-List: stable@vger.kernel.org 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. HTH. -- Regards/Gruss, Boris. SUSE Software Solutions Germany GmbH, GF: Ivo Totev, HRB 36809, AG Nürnberg