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=-17.2 required=3.0 tests=BAYES_00, HEADER_FROM_DIFFERENT_DOMAINS,INCLUDES_CR_TRAILER,INCLUDES_PATCH, MAILING_LIST_MULTI,NICE_REPLY_A,SPF_HELO_NONE,SPF_PASS,USER_AGENT_SANE_1 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 660BAC433F5 for ; Wed, 8 Sep 2021 15:36:19 +0000 (UTC) Received: from vger.kernel.org (vger.kernel.org [23.128.96.18]) by mail.kernel.org (Postfix) with ESMTP id 474BF606A5 for ; Wed, 8 Sep 2021 15:36:19 +0000 (UTC) Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1349641AbhIHPh0 (ORCPT ); Wed, 8 Sep 2021 11:37:26 -0400 Received: from foss.arm.com ([217.140.110.172]:48026 "EHLO foss.arm.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S235441AbhIHPh0 (ORCPT ); Wed, 8 Sep 2021 11:37:26 -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 D5C6D1FB; Wed, 8 Sep 2021 08:36:17 -0700 (PDT) Received: from [192.168.0.110] (unknown [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id 7A40E3F766; Wed, 8 Sep 2021 08:36:15 -0700 (PDT) Subject: Re: [kvm-unit-tests RFC PATCH 4/5] scripts: Generate kvmtool standalone tests To: Andrew Jones Cc: thuth@redhat.com, pbonzini@redhat.com, lvivier@redhat.com, kvm-ppc@vger.kernel.org, david@redhat.com, frankja@linux.ibm.com, cohuck@redhat.com, imbrenda@linux.ibm.com, linux-s390@vger.kernel.org, kvm@vger.kernel.org, kvmarm@lists.cs.columbia.edu, andre.przywara@arm.com, maz@kernel.org, vivek.gautam@arm.com References: <20210702163122.96110-1-alexandru.elisei@arm.com> <20210702163122.96110-5-alexandru.elisei@arm.com> <20210907102135.i2w3r7j4zyj736b5@gator> From: Alexandru Elisei Message-ID: Date: Wed, 8 Sep 2021 16:37:39 +0100 User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:78.0) Gecko/20100101 Thunderbird/78.13.0 MIME-Version: 1.0 In-Reply-To: <20210907102135.i2w3r7j4zyj736b5@gator> Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Content-Language: en-US Precedence: bulk List-ID: X-Mailing-List: linux-s390@vger.kernel.org Hi Drew, On 9/7/21 11:21 AM, Andrew Jones wrote: > On Fri, Jul 02, 2021 at 05:31:21PM +0100, Alexandru Elisei wrote: >> Add support for the standalone target when running kvm-unit-tests under >> kvmtool. >> >> Example command line invocation: >> >> $ ./configure --target=kvmtool >> $ make clean && make standalone >> >> Signed-off-by: Alexandru Elisei >> --- >> scripts/mkstandalone.sh | 14 +++++++------- >> 1 file changed, 7 insertions(+), 7 deletions(-) >> >> diff --git a/scripts/mkstandalone.sh b/scripts/mkstandalone.sh >> index 16f461c06842..d84bdb7e278c 100755 >> --- a/scripts/mkstandalone.sh >> +++ b/scripts/mkstandalone.sh >> @@ -44,6 +44,10 @@ generate_test () >> config_export ARCH_NAME >> config_export PROCESSOR >> >> + if [ "$ARCH" = "arm64" ] || [ "$ARCH" = "arm" ]; then >> + config_export TARGET >> + fi > Should export unconditionally, since we'll want TARGET set > unconditionally. Yes, will do. > >> + >> echo "echo BUILD_HEAD=$(cat build-head)" >> >> if [ ! -f $kernel ]; then >> @@ -59,7 +63,7 @@ generate_test () >> echo 'export FIRMWARE' >> fi >> >> - if [ "$ENVIRON_DEFAULT" = "yes" ] && [ "$ERRATATXT" ]; then >> + if [ "$TARGET" != "kvmtool" ] && [ "$ENVIRON_DEFAULT" = "yes" ] && [ "$ERRATATXT" ]; then > I think it would be better to ensure that ENVIRON_DEFAULT is "no" for > TARGET=kvmtool in configure. >From looking at the code, it is my understanding that with ENVIRON_DEFAULT=yes, an initrd file is generated with the contents of erratatxt and other information, in a key=value pair format. This initrd is then passed on to the test (please correct me if I'm wrong). With ENVIRON_DEFAULT=no (set via ./configure --disable-default-environ), this initrd is not generated. kvmtool doesn't have support for passing an initrd when loading firmware, so yes, I believe the default should be no. However, I have two questions: 1. What happens when the user specifically enables the default environ via ./configure --enable-default-environ --target=kvmtool? In my opinion, that should be an error because the user wants something that is not possible with kvmtool (loading an image with --firmware in kvmtool means that the initrd image it not loaded into the guest memory and no node is generated for it in the dtb), but I would like to hear your thoughts about it. 2. If the default environment is disabled, is it still possible for an user to pass an initrd via other means? I couldn't find where that is implemented, so I'm guessing it's not possible. Thanks, Alex > > >> temp_file ERRATATXT "$ERRATATXT" >> echo 'export ERRATATXT' >> fi >> @@ -95,12 +99,8 @@ function mkstandalone() >> echo Written $standalone. >> } >> >> -if [ "$TARGET" = "kvmtool" ]; then >> - echo "Standalone tests not supported with kvmtool" >> - exit 2 >> -fi >> - >> -if [ "$ENVIRON_DEFAULT" = "yes" ] && [ "$ERRATATXT" ] && [ ! -f "$ERRATATXT" ]; then >> +if [ "$TARGET" != "kvmtool" ] && [ "$ENVIRON_DEFAULT" = "yes" ] && \ >> + [ "$ERRATATXT" ] && [ ! -f "$ERRATATXT" ]; then >> echo "$ERRATATXT not found. (ERRATATXT=$ERRATATXT)" >&2 >> exit 2 >> fi >> -- >> 2.32.0 >> > Thanks, > drew >