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=-5.8 required=3.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,DKIM_VALID_AU,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 84020C56202 for ; Thu, 26 Nov 2020 16:24:02 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 3017D21D40 for ; Thu, 26 Nov 2020 16:24:02 +0000 (UTC) Authentication-Results: mail.kernel.org; dkim=pass (2048-bit key) header.d=infradead.org header.i=@infradead.org header.b="K5NPkzil" Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S2391427AbgKZQXq (ORCPT ); Thu, 26 Nov 2020 11:23:46 -0500 Received: from lindbergh.monkeyblade.net ([23.128.96.19]:55702 "EHLO lindbergh.monkeyblade.net" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S2390011AbgKZQXq (ORCPT ); Thu, 26 Nov 2020 11:23:46 -0500 Received: from casper.infradead.org (casper.infradead.org [IPv6:2001:8b0:10b:1236::1]) by lindbergh.monkeyblade.net (Postfix) with ESMTPS id 35613C0613D4; Thu, 26 Nov 2020 08:23:46 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; q=dns/txt; c=relaxed/relaxed; d=infradead.org; s=casper.20170209; h=In-Reply-To:Content-Type:MIME-Version: References:Message-ID:Subject:Cc:To:From:Date:Sender:Reply-To: Content-Transfer-Encoding:Content-ID:Content-Description; bh=J/yD0KFriqWMZtNa1/eriAjfaLbTwrShtSXGHA91Qqg=; b=K5NPkzils6igylPVgbl+1esF0f xEzI5QMLfMEX0KgTXqboE+X4bWmnUW/Z5SekuMxAJZq+QYCwLAOHi85g4/x8hK92dQo6z0uuzcIYI +YUWiX9k0nw6q+Q3B20Oi0l7wp/0CCpUmjiU4EZ7NE4KRt7RGmJTuus3kubc0TygiTjwTm8irUWXG gRz/HaZGA19gBb4X4o5azgcd55gSeyCKO8NiElpskZsl7C/ft1Rd+MjrZ+aUgEJrPbRLZl7ujCadT psBDmdMn+xz5XFyWb3zYx9TSbT6GAcvM3VZi6h/MD/NtmJ4Ob4qrpJPnzVP+5C8cn9nn0PGlgDn5j zBeC1vBA==; Received: from willy by casper.infradead.org with local (Exim 4.92.3 #3 (Red Hat Linux)) id 1kiK3X-0000x3-2G; Thu, 26 Nov 2020 16:23:39 +0000 Date: Thu, 26 Nov 2020 16:23:38 +0000 From: Matthew Wilcox To: Marc Zyngier Cc: David Brazdil , kvmarm@lists.cs.columbia.edu, Jonathan Corbet , Catalin Marinas , Will Deacon , James Morse , Julien Thierry , Suzuki K Poulose , Dennis Zhou , Tejun Heo , Christoph Lameter , Mark Rutland , Lorenzo Pieralisi , Sudeep Holla , linux-doc@vger.kernel.org, linux-kernel@vger.kernel.org, linux-arm-kernel@lists.infradead.org, kernel-team@android.com Subject: Re: [PATCH v3 00/23] Opt-in always-on nVHE hypervisor Message-ID: <20201126162338.GV4327@casper.infradead.org> References: <20201126155421.14901-1-dbrazdil@google.com> <20201126155746.GU4327@casper.infradead.org> <6a2a14af06232cdf2f5146cd8ec6fc35@kernel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <6a2a14af06232cdf2f5146cd8ec6fc35@kernel.org> Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Nov 26, 2020 at 04:19:55PM +0000, Marc Zyngier wrote: > On 2020-11-26 15:57, Matthew Wilcox wrote: > > On Thu, Nov 26, 2020 at 03:53:58PM +0000, David Brazdil wrote: > > > The hypervisor starts trapping host SMCs and intercepting host's PSCI > > > CPU_ON/SUSPEND calls. It replaces the host's entry point with its own, > > > initializes the EL2 state of the new CPU and installs the nVHE hyp > > > vector > > > before ERETing to the host's entry point. > > > > I hate CPU people. This is complete gibberish to anyone who doesn't > > already have their head deep in ... whatever you're talking about. > > What I hate the most is people having a go at other people because they > don't understand what is being discussed. Who is at fault there? The person who wrote an explanation that doesn't actually explain anything? If you're sending mail to a bunch of mailing lists which aren't already familiar with what you're trying to do, the onus is on you to do more explanation.