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 CAA56EB64DA for ; Wed, 5 Jul 2023 10:24:39 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S231720AbjGEKYj (ORCPT ); Wed, 5 Jul 2023 06:24:39 -0400 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:47082 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S231766AbjGEKYg (ORCPT ); Wed, 5 Jul 2023 06:24:36 -0400 Received: from gandalf.ozlabs.org (gandalf.ozlabs.org [150.107.74.76]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 889A410C3 for ; Wed, 5 Jul 2023 03:24:33 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=ellerman.id.au; s=201909; t=1688552672; bh=bxv5RlBw6jHHPJ7/NqKkDq8EbXeFR8b7l8+ro4TxGJQ=; h=From:To:Cc:Subject:In-Reply-To:References:Date:From; b=UdIY8cZIOeoWNhvIOKtCcw77iFwNU4tPzQm83Pj5w4fs9L2qztMlbZeaC0W3xH9z2 aYvCBKhg6yATq0oziwTavYJvkzA3ZdxGIeTsaTxDFEosRq4Huh2m263mzx0RAquRbD J6JevD0fqKmonOyUG8fI02vHJ4frfviAEdJNMWvVdw45rtbN0sSJsvG6ZkAtSAMC0l CH2XBTFFVeYYkisWMAxt5VBLZBPRzfZ/7TZDknwnr206ujdM7bXG14tvLdTwSAaumH JdoU+yHcFc0KkAlNf3nxK7ZyWW9kEzCqcC38SiQ06udfFY/IZm23i8+PdkxuEj55yv Ya23lfLb6/yhw== Received: from authenticated.ozlabs.org (localhost [127.0.0.1]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits) key-exchange X25519 server-signature RSA-PSS (4096 bits) server-digest SHA256) (No client certificate requested) by mail.ozlabs.org (Postfix) with ESMTPSA id 4Qwwkm0Cgmz4wqX; Wed, 5 Jul 2023 20:24:32 +1000 (AEST) From: Michael Ellerman To: Sean Christopherson , Nicholas Piggin Cc: linuxppc-dev@lists.ozlabs.org, kvm@vger.kernel.org Subject: Re: [PATCH] KVM: PPC: Update MAINTAINERS In-Reply-To: References: <20230608024504.58189-1-npiggin@gmail.com> Date: Wed, 05 Jul 2023 20:24:31 +1000 Message-ID: <87zg4aveow.fsf@mail.lhotse> MIME-Version: 1.0 Content-Type: text/plain Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org Sean Christopherson writes: > On Thu, Jun 08, 2023, Nicholas Piggin wrote: >> Michael is merging KVM PPC patches via the powerpc tree and KVM topic >> branches. He doesn't necessarily have time to be across all of KVM so >> is reluctant to call himself maintainer, but for the mechanics of how >> patches flow upstream, it is maintained and does make sense to have >> some contact people in MAINTAINERS. >> >> So add Michael Ellerman as KVM PPC maintainer and myself as reviewer. >> Split out the subarchs that don't get so much attention. >> >> Signed-off-by: Nicholas Piggin >> --- > > Thanks for documenting the reality of things, much appreciated! > > Acked-by: Sean Christopherson > >> MAINTAINERS | 6 ++++++ >> 1 file changed, 6 insertions(+) >> >> diff --git a/MAINTAINERS b/MAINTAINERS >> index 0dab9737ec16..44417acd2936 100644 >> --- a/MAINTAINERS >> +++ b/MAINTAINERS >> @@ -11379,7 +11379,13 @@ F: arch/mips/include/uapi/asm/kvm* >> F: arch/mips/kvm/ >> >> KERNEL VIRTUAL MACHINE FOR POWERPC (KVM/powerpc) >> +M: Michael Ellerman >> +R: Nicholas Piggin >> L: linuxppc-dev@lists.ozlabs.org >> +L: kvm@vger.kernel.org >> +S: Maintained (Book3S 64-bit HV) >> +S: Odd fixes (Book3S 64-bit PR) >> +S: Orphan (Book3E and 32-bit) > > Do you think there's any chance of dropping support for everything except Book3S > 64-bit HV at some point soonish? Nick proposed disabling BookE KVM, which prompted some users to report they are still actively using it: https://lore.kernel.org/all/20221128043623.1745708-1-npiggin@gmail.com/ There are also still some KVM PR users. In total I'd guess it's only some small 100s of users, but we don't really know. > There haven't been many generic KVM changes that touch PPC, but in my > experience when such series do come along, the many flavors and layers > of PPC incur quite a bit of development and testing cost, and have a > high chance of being broken compared to other architectures. Ack. cheers