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From: Andrew Jones To: Alexandru Elisei 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 v3 06/16] scripts: Refuse to run the tests if not configured for qemu Message-ID: <20250507-9143a202e9745535dd43b5a8@orel> References: <20250507151256.167769-1-alexandru.elisei@arm.com> <20250507151256.167769-7-alexandru.elisei@arm.com> X-Mailing-List: linuxppc-dev@lists.ozlabs.org List-Id: List-Help: List-Owner: List-Post: List-Archive: , List-Subscribe: , , List-Unsubscribe: Precedence: list MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20250507151256.167769-7-alexandru.elisei@arm.com> X-Migadu-Flow: FLOW_OUT On Wed, May 07, 2025 at 04:12:46PM +0100, Alexandru Elisei wrote: > Arm and arm64 support running the tests under kvmtool. kvmtool has a > different command line syntax for configuring and running a virtual > machine, and the automated scripts know only how to use qemu. > > One issue with that is even though the tests have been configured for > kvmtool (with ./configure --target=kvmtool), the scripts will use qemu to > run the tests, and without looking at the logs there is no indication that > the tests haven't been run with kvmtool, as configured. > > Another issue is that kvmtool uses a different address for the UART and > when running the tests with qemu via the scripts, this warning is > displayed: > > WARNING: early print support may not work. Found uart at 0x9000000, but early base is 0x1000000. > > which might trip up an unsuspected user. > > 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. > > run_tests.sh ends up execuing either arm/run or arm/efi/run, so add a check executing > to these two scripts for the test target, and refuse to run the test if > kvm-unit-tests has been configured for kvmtool. > > mkstandalone.sh also executes arm/run or arm/efi run, but the usual use > case for standalone tests is to compile them on one machine, and then to > run them on a different machine. This two step process can be time > consuming, so save the user time (and frustration!) and add a check > directly to mkstandalone.sh. > > Signed-off-by: Alexandru Elisei > --- > arm/efi/run | 3 +++ > arm/run | 4 ++++ > scripts/mkstandalone.sh | 3 +++ > scripts/vmm.bash | 14 ++++++++++++++ > 4 files changed, 24 insertions(+) > create mode 100644 scripts/vmm.bash > > diff --git a/arm/efi/run b/arm/efi/run > index 8f41fc02df31..53d71297cc52 100755 > --- a/arm/efi/run > +++ b/arm/efi/run > @@ -11,6 +11,9 @@ if [ ! -f config.mak ]; then > fi > source config.mak > source scripts/arch-run.bash > +source scripts/vmm.bash > + > +check_vmm_supported > > if [ -f /usr/share/qemu-efi-aarch64/QEMU_EFI.fd ]; then > DEFAULT_UEFI=/usr/share/qemu-efi-aarch64/QEMU_EFI.fd > diff --git a/arm/run b/arm/run > index ef58558231b7..56562ed1628f 100755 > --- a/arm/run > +++ b/arm/run > @@ -7,7 +7,11 @@ if [ -z "$KUT_STANDALONE" ]; then > fi > source config.mak > source scripts/arch-run.bash > + source scripts/vmm.bash > fi > + > +check_vmm_supported > + > qemu_cpu="$TARGET_CPU" > > if [ "$QEMU" ] && [ -z "$ACCEL" ] && > diff --git a/scripts/mkstandalone.sh b/scripts/mkstandalone.sh > index c4ba81f18935..4f666cefe076 100755 > --- a/scripts/mkstandalone.sh > +++ b/scripts/mkstandalone.sh > @@ -6,6 +6,9 @@ if [ ! -f config.mak ]; then > fi > source config.mak > source scripts/common.bash > +source scripts/vmm.bash > + > +check_vmm_supported > > temp_file () > { > diff --git a/scripts/vmm.bash b/scripts/vmm.bash > new file mode 100644 > index 000000000000..39325858c6b3 > --- /dev/null > +++ b/scripts/vmm.bash > @@ -0,0 +1,14 @@ > +source config.mak > + > +function check_vmm_supported() > +{ > + case "$TARGET" in > + qemu) > + return 0 > + ;; > + *) > + echo "$0 does not support target '$TARGET'" > + exit 2 > + ;; > + esac > +} Hmm. We now have configure saying one thing for arm/arm64 and this function saying another. Assuming this is just temporary and will be resolved in the next patches, then that's probably OK, though. Thanks, drew