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 lists.gnu.org (lists.gnu.org [209.51.188.17]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by smtp.lore.kernel.org (Postfix) with ESMTPS id 827B3C4332F for ; Fri, 21 Oct 2022 14:51:33 +0000 (UTC) Received: from localhost ([::1] helo=lists.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oltMu-0008QF-EA for qemu-devel@archiver.kernel.org; Fri, 21 Oct 2022 10:51:30 -0400 Received: from [::1] (helo=lists1p.gnu.org) by lists.gnu.org with esmtp (Exim 4.90_1) (envelope-from ) id 1oltMV-0000Vd-PI for qemu-devel@archiver.kernel.org; Fri, 21 Oct 2022 10:51:03 -0400 Received: from eggs.gnu.org ([2001:470:142:3::10]) by lists.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oltMM-0008Lx-Ge for qemu-devel@nongnu.org; Fri, 21 Oct 2022 10:50:55 -0400 Received: from us-smtp-delivery-124.mimecast.com ([170.10.133.124]) by eggs.gnu.org with esmtps (TLS1.2:ECDHE_RSA_AES_256_GCM_SHA384:256) (Exim 4.90_1) (envelope-from ) id 1oltMH-0004wi-Rd for qemu-devel@nongnu.org; Fri, 21 Oct 2022 10:50:54 -0400 DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=redhat.com; s=mimecast20190719; t=1666363846; h=from:from:reply-to:reply-to:subject:subject: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=Ggm4zQ2f5PkZtN/CJOCuxvUTOsFvAipR0YVyfs8AILI=; b=ZytvutAnnBJ8dkhSTxTmA0SFrNVgfk1cixb9wsw95CRdOgtltl19NEdQgL49cjiMOXGTMi QcVhAG26k0SEQhvPrn/HtVoZH448jLAtjCbSvyG7/jI8sXaSc3nKJWJQypsOLvmUqEbWos xHd6fLTzpZDaBONrroc4j9MGq9IJ6RI= Received: from mimecast-mx02.redhat.com (mimecast-mx02.redhat.com [66.187.233.88]) by relay.mimecast.com with ESMTP with STARTTLS (version=TLSv1.2, cipher=TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384) id us-mta-484-O4eqZjlZPKCANEHEMFPayA-1; Fri, 21 Oct 2022 10:50:43 -0400 X-MC-Unique: O4eqZjlZPKCANEHEMFPayA-1 Received: from smtp.corp.redhat.com (int-mx06.intmail.prod.int.rdu2.redhat.com [10.11.54.6]) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by mimecast-mx02.redhat.com (Postfix) with ESMTPS id 9A111811E75; Fri, 21 Oct 2022 14:50:42 +0000 (UTC) Received: from redhat.com (unknown [10.33.36.210]) by smtp.corp.redhat.com (Postfix) with ESMTPS id AF17D2166B2D; Fri, 21 Oct 2022 14:50:41 +0000 (UTC) Date: Fri, 21 Oct 2022 15:50:39 +0100 From: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= To: Peter Maydell Cc: Laurent Vivier , qemu-devel@nongnu.org, Eduardo Habkost , Richard Henderson , Paolo Bonzini Subject: Re: [PATCH 3/4] meson: enforce a minimum Linux kernel headers version >= 4.18 Message-ID: References: <20221004093206.652431-1-berrange@redhat.com> <20221004093206.652431-4-berrange@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: User-Agent: Mutt/2.2.7 (2022-08-07) X-Scanned-By: MIMEDefang 3.1 on 10.11.54.6 Received-SPF: pass client-ip=170.10.133.124; envelope-from=berrange@redhat.com; helo=us-smtp-delivery-124.mimecast.com X-Spam_score_int: -23 X-Spam_score: -2.4 X-Spam_bar: -- X-Spam_report: (-2.4 / 5.0 requ) BAYES_00=-1.9, DKIMWL_WL_HIGH=-0.25, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, RCVD_IN_DNSWL_NONE=-0.0001, RCVD_IN_MSPIKE_H2=-0.001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Reply-To: Daniel =?utf-8?B?UC4gQmVycmFuZ8Op?= Errors-To: qemu-devel-bounces+qemu-devel=archiver.kernel.org@nongnu.org Sender: "Qemu-devel" On Fri, Oct 21, 2022 at 03:38:38PM +0100, Peter Maydell wrote: > On Fri, 21 Oct 2022 at 15:30, Laurent Vivier wrote: > > > > Le 04/10/2022 à 11:32, Daniel P. Berrangé a écrit : > > > Various areas of QEMU have a dependency on Linux kernel header > > > definitions. This falls under the scope of our supported platforms > > > matrix, but historically we've not checked for a minimum kernel > > > headers version. This has made it unclear when we can drop support > > > for older kernel headers. > > > > > > * Alpine 3.14: 5.10 > > > * CentOS 8: 4.18 > > > * CentOS 9: 5.14 > > > * Debian 10: 4.19 > > > * Debian 11: 5.10 > > > * Fedora 35: 5.19 > > > * Fedora 36: 5.19 > > > * OpenSUSE 15.3: 5.3.0 > > > * Ubuntu 20.04: 5.4 > > > * Ubuntu 22.04: 5.15 > > > > > > The above ignores the 3rd version digit since distros update their > > > packages periodically and such updates don't generally affect public > > > APIs to the extent that it matters for our build time check. > > > > > > Overall, we can set the baseline to 4.18 currently. > > > > As this change affects entire QEMU build, I'd prefer to have some "Acked-by" before merging it via > > linux-user branch. > > I still think we should be more conservative about kernel header > requirements than we are for other dependencies. How much more though ? What other distros do we want to target that we don't already cover with our targetted platforms ? With regards, Daniel -- |: https://berrange.com -o- https://www.flickr.com/photos/dberrange :| |: https://libvirt.org -o- https://fstop138.berrange.com :| |: https://entangle-photo.org -o- https://www.instagram.com/dberrange :|