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 vger.kernel.org (vger.kernel.org [23.128.96.18]) by smtp.lore.kernel.org (Postfix) with ESMTP id 22324C54EE9 for ; Tue, 20 Sep 2022 16:33:50 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S230185AbiITQdt (ORCPT ); Tue, 20 Sep 2022 12:33:49 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:46890 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S229812AbiITQdr (ORCPT ); Tue, 20 Sep 2022 12:33:47 -0400 Received: from dfw.source.kernel.org (dfw.source.kernel.org [IPv6:2604:1380:4641:c500::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 81E5A65271 for ; Tue, 20 Sep 2022 09:33:46 -0700 (PDT) Received: from smtp.kernel.org (relay.kernel.org [52.25.139.140]) (using TLSv1.2 with cipher ECDHE-RSA-AES256-GCM-SHA384 (256/256 bits)) (No client certificate requested) by dfw.source.kernel.org (Postfix) with ESMTPS id 1DAF1623C4 for ; Tue, 20 Sep 2022 16:33:46 +0000 (UTC) Received: by smtp.kernel.org (Postfix) with ESMTPSA id 7C0A7C433D6; Tue, 20 Sep 2022 16:33:45 +0000 (UTC) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/simple; d=kernel.org; s=k20201202; t=1663691625; bh=8jHMNALAElMkh3GttD9BKJMCY2IIH5mnzRc5BmUBolM=; h=Date:From:To:Cc:Subject:In-Reply-To:References:From; b=n4UrolppoPViB3Jz8XXUWTHwiS8BlDgEi9oiaGAol9yPGHwxajpMfKMl1lTX3MRDC ymmz4AmY93ZMjBVKaTBnAcY+big+cwVixRVCWQOJdK9JByjtKnVOEhP2muSo42G+cs oY0GB0IBeiRmd8+nFCiONOh7laM/kNq1KlZUGAoKCPJl0yHJio20pqxMRsIplhAKas udvgf+O8/Du01R9P5LCAm5ZvyNdHc40850T7+5bvdgXyiSKWr72bRDmKiHb1g2Rre/ asKOMvi+ynAYYR4ABPjt8lndRzUINuymDG0/ZRcIT2/3zSKpinjwhxkd5qVgJv1mNr e+2vB8vJ4tjtg== Received: from 185-176-101-241.host.sccbroadband.ie ([185.176.101.241] helo=wait-a-minute.misterjones.org) by disco-boy.misterjones.org with esmtpsa (TLS1.3) tls TLS_ECDHE_RSA_WITH_AES_256_GCM_SHA384 (Exim 4.95) (envelope-from ) id 1oagBr-00BS4W-EH; Tue, 20 Sep 2022 17:33:43 +0100 Date: Tue, 20 Sep 2022 17:33:42 +0100 Message-ID: <871qs6kntl.wl-maz@kernel.org> From: Marc Zyngier To: Catalin Marinas Cc: kernel test robot , Peter Collingbourne , linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kbuild-all@lists.01.org, Cornelia Huck , Will Deacon , Evgenii Stepanov , kvm@vger.kernel.org, Steven Price , Vincenzo Frascino Subject: Re: [PATCH v3 3/7] mm: Add PG_arch_3 page flag In-Reply-To: References: <20220810193033.1090251-4-pcc@google.com> <202208111500.62e0Bl2l-lkp@intel.com> <878rmfkzbu.wl-maz@kernel.org> User-Agent: Wanderlust/2.15.9 (Almost Unreal) SEMI-EPG/1.14.7 (Harue) FLIM-LB/1.14.9 (=?UTF-8?B?R29qxY0=?=) APEL-LB/10.8 EasyPG/1.0.0 Emacs/27.1 (x86_64-pc-linux-gnu) MULE/6.0 (HANACHIRUSATO) MIME-Version: 1.0 (generated by SEMI-EPG 1.14.7 - "Harue") Content-Type: text/plain; charset=US-ASCII X-SA-Exim-Connect-IP: 185.176.101.241 X-SA-Exim-Rcpt-To: catalin.marinas@arm.com, lkp@intel.com, pcc@google.com, linux-arm-kernel@lists.infradead.org, kvmarm@lists.cs.columbia.edu, kbuild-all@lists.01.org, cohuck@redhat.com, will@kernel.org, eugenis@google.com, kvm@vger.kernel.org, steven.price@arm.com, vincenzo.frascino@arm.com X-SA-Exim-Mail-From: maz@kernel.org X-SA-Exim-Scanned: No (on disco-boy.misterjones.org); SAEximRunCond expanded to false Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Tue, 20 Sep 2022 16:39:47 +0100, Catalin Marinas wrote: > > On Mon, Sep 19, 2022 at 07:12:53PM +0100, Marc Zyngier wrote: > > On Mon, 05 Sep 2022 18:01:55 +0100, > > Catalin Marinas wrote: > > > Peter, please let me know if you want to pick this series up together > > > with your other KVM patches. Otherwise I can post it separately, it's > > > worth merging it on its own as it clarifies the page flag vs tag setting > > > ordering. > > > > I'm looking at queuing this, but I'm confused by this comment. Do I > > need to pick this as part of the series? Or is this an independent > > thing (my hunch is that it is actually required not to break other > > architectures...). > > This series series (at least the first patches) won't apply cleanly on > top of 6.0-rc1 and, of course, we shouldn't break other architectures. I > can repost the whole series but I don't have the setup to test the > MAP_SHARED KVM option (unless Peter plans to post it soon). I don't feel brave enough to take a series affecting all architectures so late in the game, and the whole thing had very little arm64 exposure. The latest QEMU doesn't seem to work anymore, so I don't have any MTE-capable emulation (and using the FVP remotely is a pain in the proverbial neck). I'll come back to this after the merge window, should Peter decide to respin the series. Thanks, M. -- Without deviation from the norm, progress is not possible.