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 X-Spam-Level: X-Spam-Status: No, score=-3.8 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,MAILING_LIST_MULTI,SPF_HELO_NONE,SPF_PASS autolearn=no autolearn_force=no version=3.4.0 Received: from mail.kernel.org (mail.kernel.org [198.145.29.99]) by smtp.lore.kernel.org (Postfix) with ESMTP id E90CBC433DF for ; Tue, 25 Aug 2020 12:52:53 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id CEC6E2075F for ; Tue, 25 Aug 2020 12:52:53 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1726999AbgHYMwr (ORCPT ); Tue, 25 Aug 2020 08:52:47 -0400 Received: from foss.arm.com ([217.140.110.172]:58142 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1726784AbgHYMwq (ORCPT ); Tue, 25 Aug 2020 08:52:46 -0400 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.121.207.14]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id 2D8B41FB; Tue, 25 Aug 2020 05:52:46 -0700 (PDT) Received: from C02TD0UTHF1T.local (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 258963F66B; Tue, 25 Aug 2020 05:52:44 -0700 (PDT) Date: Tue, 25 Aug 2020 13:52:30 +0100 From: Mark Rutland To: Steven Price Cc: Marc Zyngier , Keqian Zhu , kvm@vger.kernel.org, Catalin Marinas , linux-kernel@vger.kernel.org, Will Deacon , kvmarm@lists.cs.columbia.edu, linux-arm-kernel@lists.infradead.org Subject: Re: [RFC PATCH 0/5] KVM: arm64: Add pvtime LPT support Message-ID: <20200825125230.GA33677@C02TD0UTHF1T.local> References: <20200817084110.2672-1-zhukeqian1@huawei.com> <8308f52e4c906cad710575724f9e3855@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Disposition: inline Content-Transfer-Encoding: 8bit In-Reply-To: Sender: kvm-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: kvm@vger.kernel.org On Wed, Aug 19, 2020 at 09:54:40AM +0100, Steven Price wrote: > On 18/08/2020 15:41, Marc Zyngier wrote: > > On 2020-08-17 09:41, Keqian Zhu wrote: > We are discussing (re-)releasing the spec with the LPT parts added. If you > have fundamental objections then please me know. Like Marc, I argued strongly for the removal of the LPT bits on the premise that it didn't really work (e.g. when transistioning between SW agents) and so it was a pure maintenance burden. I don't think the technical arguments have changed, and I don't think it's a good idea to try to ressurect this. Please rope me in if this comes up in internal discussions. Mark.