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=-2.5 required=3.0 tests=HEADER_FROM_DIFFERENT_DOMAINS, MAILING_LIST_MULTI,SPF_PASS,USER_AGENT_MUTT autolearn=ham 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 51314C43387 for ; Mon, 7 Jan 2019 14:39:34 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [209.132.180.67]) by mail.kernel.org (Postfix) with ESMTP id 2859A2183E for ; Mon, 7 Jan 2019 14:39:34 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1728812AbfAGOjd (ORCPT ); Mon, 7 Jan 2019 09:39:33 -0500 Received: from foss.arm.com ([217.140.101.70]:60530 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1727398AbfAGOjb (ORCPT ); Mon, 7 Jan 2019 09:39:31 -0500 Received: from usa-sjc-imap-foss1.foss.arm.com (unknown [10.72.51.249]) by usa-sjc-mx-foss1.foss.arm.com (Postfix) with ESMTP id D704680D; Mon, 7 Jan 2019 06:39:30 -0800 (PST) Received: from lakrids.cambridge.arm.com (usa-sjc-imap-foss1.foss.arm.com [10.72.51.249]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 364973F5AF; Mon, 7 Jan 2019 06:39:29 -0800 (PST) Date: Mon, 7 Jan 2019 14:39:24 +0000 From: Mark Rutland To: Mark Brown Cc: Anders Roxell , linux-kernel@vger.kernel.org, catalin.marinas@arm.com, will.deacon@arm.com, arnd@arndb.de, mingo@redhat.com, rostedt@goodmis.org, akpm@linux-foundation.org Subject: Re: [RFC PATCH 3/3] arm64: add a new config option KTEST_RUNNABLE Message-ID: <20190107143924.GA46743@lakrids.cambridge.arm.com> References: <20181213122910.24193-1-anders.roxell@linaro.org> <20181213122910.24193-4-anders.roxell@linaro.org> <20181213151823.GK10669@sirena.org.uk> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20181213151823.GK10669@sirena.org.uk> User-Agent: Mutt/1.11.1+11 (2f07cb52) (2018-12-01) Sender: linux-kernel-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thu, Dec 13, 2018 at 03:18:23PM +0000, Mark Brown wrote: > On Thu, Dec 13, 2018 at 01:29:10PM +0100, Anders Roxell wrote: > > > With this new config option, we can boot a allmodconfig kernel in qemu. > > Config options SERIAL_AMBA_PL011, SERIAL_AMBA_PL011_CONSOLE, UNIX needs > > to be enabled in order to get a console. Options like CPU_BIG_ENDIAN, > > CMDLINE_FORCE, CMDLINE_OVERRIDE and HVC_DCC needs to be disabled. > > Does ktest really not run with BIG_ENDIAN? > > > +config KTEST_RUNNABLE > > + bool "Test build kernels that run in qemu for ktest" > > + select SERIAL_AMBA_PL011 > > + select SERIAL_AMBA_PL011_CONSOLE > > + select UNIX > > The opposite angle for my question on patch 1 I guess but is this really > a generic thing for running ktest? It seems like it's specific to qemu > (and other systems which have the PL011 as the console serial port). This is definitely platform-specific rather than ktest specific. If I wanted to run ktest in a kvmtool VM, I would not need PL011 at all, since that uses 8250 and virtio-console. Thanks, Mark.