From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from foss.arm.com (foss.arm.com [217.140.110.172]) by smtp.subspace.kernel.org (Postfix) with ESMTP id EAEF01F470A; Tue, 21 Jan 2025 16:20:59 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=217.140.110.172 ARC-Seal:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737476463; cv=none; b=iOSbKI9W0vCKx8XXPKJreh2TZ2tUf2u7XO3Z3Ls8mzpWMABt3PDRoIESY69HxxSjTz2TMBt9W53ecgssmkJodCvO16lIxEMyPi3h+CJH87qUS6vnPaWGcJzNgw5Fmdi1zRlickts8ppsoiTkveqfI2LQeih/jrs2/3hp45qXWyo= ARC-Message-Signature:i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1737476463; c=relaxed/simple; bh=ROtIQ8u3GuBK/uJn7uqD5tIKIlyFZnf0aLf9S7bCHoE=; h=Date:From:To:Cc:Subject:Message-ID:References:MIME-Version: Content-Type:Content-Disposition:In-Reply-To; b=ITlf0c8++t6GmAgIYBFh6GbYeaGr3jRpVSsBRt5bWBeUMambsZ7oQupwC3NSmcJBRtQMajrXIjUUUbHpdqd5ELJaVqLu1La3SR3fv9Pl9KWIaiyD6F5OPtqSsJaVwXWYlBMOT2ei+wSGPEwSgRzJX0BygRtt3Yz4ZRarxm2omYw= ARC-Authentication-Results:i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com; spf=pass smtp.mailfrom=arm.com; arc=none smtp.client-ip=217.140.110.172 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=arm.com Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=arm.com 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 7A531106F; Tue, 21 Jan 2025 08:21:27 -0800 (PST) Received: from raptor (usa-sjc-mx-foss1.foss.arm.com [172.31.20.19]) by usa-sjc-imap-foss1.foss.arm.com (Postfix) with ESMTPSA id BFD103F738; Tue, 21 Jan 2025 08:20:55 -0800 (PST) Date: Tue, 21 Jan 2025 16:20:53 +0000 From: Alexandru Elisei To: Andrew Jones Cc: eric.auger@redhat.com, lvivier@redhat.com, thuth@redhat.com, frankja@linux.ibm.com, imbrenda@linux.ibm.com, nrb@linux.ibm.com, david@redhat.com, pbonzini@redhat.com, kvm@vger.kernel.org, kvmarm@lists.linux.dev, linuxppc-dev@lists.ozlabs.org, kvm-riscv@lists.infradead.org, linux-s390@vger.kernel.org, will@kernel.org, julien.thierry.kdev@gmail.com, maz@kernel.org, oliver.upton@linux.dev, suzuki.poulose@arm.com, yuzenghui@huawei.com, joey.gouly@arm.com, andre.przywara@arm.com Subject: Re: [kvm-unit-tests PATCH v2 03/18] scripts: Refuse to run the tests if not configured for qemu Message-ID: References: <20250120164316.31473-1-alexandru.elisei@arm.com> <20250120164316.31473-4-alexandru.elisei@arm.com> <20250121-45faf6a9a9681c7c9ece5f44@orel> <20250121-c7f5ba2a25ccbfe793da07f6@orel> Precedence: bulk X-Mailing-List: linux-s390@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250121-c7f5ba2a25ccbfe793da07f6@orel> Hi Drew, On Tue, Jan 21, 2025 at 05:17:22PM +0100, Andrew Jones wrote: > On Tue, Jan 21, 2025 at 03:54:17PM +0000, Alexandru Elisei wrote: > > Hi Drew, > > > > On Tue, Jan 21, 2025 at 03:48:55PM +0100, Andrew Jones wrote: > > > On Mon, Jan 20, 2025 at 04:43:01PM +0000, Alexandru Elisei wrote: > > > > Arm and arm64 support running the tests under kvmtool. Unsurprisingly, > > > > kvmtool and qemu have a different command line syntax for configuring and > > > > running a virtual machine. > > > > > > > > On top of that, when kvm-unit-tests has been configured to run under > > > > kvmtool (via ./configure --target=kvmtool), the early UART address changes, > > > > and if then the tests are run with qemu, this warning is displayed: > > > > > > > > WARNING: early print support may not work. Found uart at 0x9000000, but early base is 0x1000000. > > > > > > > > At the moment, the only way to run a test under kvmtool is manually, as no > > > > script has any knowledge of how to invoke kvmtool. Also, unless one looks > > > > at the logs, it's not obvious that the test runner is using qemu to run the > > > > tests, and not kvmtool. > > > > > > > > To avoid any confusion for unsuspecting users, refuse to run a test via the > > > > testing scripts when kvm-unit-tests has been configured for kvmtool. > > > > > > > > There are four different ways to run a test using the test infrastructure: > > > > with run_tests.sh, by invoking arm/run or arm/efi/run with the correct > > > > parameters (only the arm directory is mentioned here because the tests can > > > > be configured for kvmtool only on arm and arm64), and by creating > > > > standalone tests. Add a check in each of these locations for the supported > > > > virtual machine manager. > > > > > > > > Signed-off-by: Alexandru Elisei > > > > --- > > > > arm/efi/run | 8 ++++++++ > > > > arm/run | 9 +++++++++ > > > > run_tests.sh | 8 ++++++++ > > > > scripts/mkstandalone.sh | 8 ++++++++ > > > > 4 files changed, 33 insertions(+) > > > > > > > > diff --git a/arm/efi/run b/arm/efi/run > > > > index 8f41fc02df31..916f4c4deef6 100755 > > > > --- a/arm/efi/run > > > > +++ b/arm/efi/run > > > > @@ -12,6 +12,14 @@ fi > > > > source config.mak > > > > source scripts/arch-run.bash > > > > > > > > +case "$TARGET" in > > > > +qemu) > > > > + ;; > > > > +*) > > > > + echo "$0 does not support '$TARGET'" > > > > + exit 2 > > > > +esac > > > > + > > > > if [ -f /usr/share/qemu-efi-aarch64/QEMU_EFI.fd ]; then > > > > DEFAULT_UEFI=/usr/share/qemu-efi-aarch64/QEMU_EFI.fd > > > > elif [ -f /usr/share/edk2/aarch64/QEMU_EFI.silent.fd ]; then > > > > diff --git a/arm/run b/arm/run > > > > index efdd44ce86a7..6db32cf09c88 100755 > > > > --- a/arm/run > > > > +++ b/arm/run > > > > @@ -8,6 +8,15 @@ if [ -z "$KUT_STANDALONE" ]; then > > > > source config.mak > > > > source scripts/arch-run.bash > > > > fi > > > > + > > > > +case "$TARGET" in > > > > +qemu) > > > > + ;; > > > > +*) > > > > + echo "'$TARGET' not supported" > > > > + exit 3 > > > > > > I think we want exit code 2 here. > > > > Exit code 2 is already in use in arm/run. Now that I'm looking more closely > > at it, exit code 2 is already in use in run_tests.sh, same for > > mkstandalone.sh and arm/efi/run. > > > > How about using 3 everywhere as the exit code? > > > > In kvm-unit-tests, exit code 2 is what we use for "most likely a run > script failed" (see the comment above run_qemu() in > scripts/arch-run.bash). We don't try to create a new error code for each > type of error, but we do have the error message as well. So if there's a > higher level runner, which runs this runner, it only needs to learn that > 2 is likely a script failure and that an error message will hopefully > point the way to the problem. > I see, I missed the comment. Will change so it returns 2 everywhere. Thanks, Alex