Re: [Qemu-devel] [qemu-s390x] [PATCH] tests: virtio: separate ccw tests from libqos

[Thomas Huth <thuth@redhat.com>]

On 08/01/2018 03:27 PM, Paolo Bonzini wrote:
> Because qtest does not support s390 channel I/O, s390 only performs smoke tests on
> those few devices that do not have any functional tests.  Therefore, every time we
> add functional tests for a virtio device, the choice is between removing
> those tests from the s390 suite (so that s390 actually _loses_ coverage)
> or sprinkling the test with architecture checks.
> 
> This patch simply creates a ccw-specific test that only performs smoke tests on
> all virtio-ccw devices.  If channel I/O support is ever added to qtest and libqos,
> then this file can go away.  In the meanwhile, it simplifies maintenance and
> makes sure that all virtio devices are tested.
> 
> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
> ---
>  tests/Makefile.include  |   5 +-
>  tests/virtio-ccw-test.c | 118 ++++++++++++++++++++++++++++++++++++++++
>  2 files changed, 120 insertions(+), 3 deletions(-)
>  create mode 100644 tests/virtio-ccw-test.c
> 
> diff --git a/tests/Makefile.include b/tests/Makefile.include
> index a49282704e..cf835f2fd0 100644
> --- a/tests/Makefile.include
> +++ b/tests/Makefile.include
> @@ -401,9 +401,7 @@ check-qtest-s390x-$(CONFIG_SLIRP) += tests/test-netfilter$(EXESUF)
>  check-qtest-s390x-$(CONFIG_POSIX) += tests/test-filter-mirror$(EXESUF)
>  check-qtest-s390x-$(CONFIG_POSIX) += tests/test-filter-redirector$(EXESUF)
>  check-qtest-s390x-y += tests/drive_del-test$(EXESUF)
> -check-qtest-s390x-y += tests/virtio-balloon-test$(EXESUF)
> -check-qtest-s390x-y += tests/virtio-console-test$(EXESUF)
> -check-qtest-s390x-y += tests/virtio-serial-test$(EXESUF)
> +check-qtest-s390x-y += tests/virtio-ccw-test$(EXESUF)
>  check-qtest-s390x-y += tests/cpu-plug-test$(EXESUF)
>  
>  check-qtest-generic-y += tests/machine-none-test$(EXESUF)
> @@ -807,6 +805,7 @@ tests/wdt_ib700-test$(EXESUF): tests/wdt_ib700-test.o
>  tests/tco-test$(EXESUF): tests/tco-test.o $(libqos-pc-obj-y)
>  tests/virtio-balloon-test$(EXESUF): tests/virtio-balloon-test.o $(libqos-virtio-obj-y)
>  tests/virtio-blk-test$(EXESUF): tests/virtio-blk-test.o $(libqos-virtio-obj-y)
> +tests/virtio-ccw-test$(EXESUF): tests/virtio-ccw-test.o
>  tests/virtio-net-test$(EXESUF): tests/virtio-net-test.o $(libqos-pc-obj-y) $(libqos-virtio-obj-y)
>  tests/virtio-rng-test$(EXESUF): tests/virtio-rng-test.o $(libqos-pc-obj-y)
>  tests/virtio-scsi-test$(EXESUF): tests/virtio-scsi-test.o $(libqos-virtio-obj-y)
> diff --git a/tests/virtio-ccw-test.c b/tests/virtio-ccw-test.c
> new file mode 100644
> index 0000000000..0af3a7bb31
> --- /dev/null
> +++ b/tests/virtio-ccw-test.c
> @@ -0,0 +1,118 @@
> +/*
> + * QTest testcase for VirtIO CCW
> + *
> + * Copyright (c) 2014 SUSE LINUX Products GmbH
> + * Copyright (c) 2018 Red Hat, Inc.
> + *
> + * This work is licensed under the terms of the GNU GPL, version 2 or later.
> + * See the COPYING file in the top-level directory.
> + */
> +
> +/* Until we have a full libqos implementation of virtio-ccw (which requires
> + * also to add support for I/O channels to qtest), we can only do simple
> + * tests that initialize the devices.
> + */
> +
> +#include "qemu/osdep.h"
> +#include "libqtest.h"
> +#include "libqos/virtio.h"
> +
> +static void virtio_balloon_nop(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-balloon-ccw");
> +    qtest_end();
> +}
> +
> +static void virtconsole_nop(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-serial-ccw,id=vser0 "
> +                                "-device virtconsole,bus=vser0.0");
> +    qtest_end();
> +}
> +
> +static void virtserialport_nop(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-serial-ccw,id=vser0 "
> +                                "-device virtserialport,bus=vser0.0");
> +    qtest_end();
> +}
> +
> +static void virtio_serial_nop(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-serial-ccw");
> +    qtest_end();
> +}
> +
> +static void virtio_serial_hotplug(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-serial-ccw");
> +    qtest_qmp_device_add("virtserialport", "hp-port", NULL);
> +    qtest_qmp_device_del("hp-port");
> +    qtest_end();
> +}
> +
> +static void virtio_blk_nop(void)
> +{
> +    global_qtest = qtest_startf("-drive if=none,id=drv0,file=null-co://,format=raw "
> +                                "-device virtio-blk-ccw,drive=drv0");
> +    qtest_end();
> +}
> +
> +static void virtio_net_nop(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-net-ccw");
> +    qtest_end();
> +}
> +
> +static void virtio_9p_nop(void)
> +{
> +    global_qtest = qtest_startf("-fsdev synth,id=fsdev0 "
> +                                "-device virtio-9p-ccw,fsdev=fsdev0,mount_tag=qtest");
> +    qtest_end();
> +}
> +
> +static void virtio_rng_nop(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-rng-ccw");
> +    qtest_end();
> +}
> +
> +static void virtio_scsi_nop(void)
> +{
> +    global_qtest = qtest_startf("-device virtio-scsi-ccw");
> +    qtest_end();
> +}
> +
> +static void virtio_scsi_hotplug(void)
> +{
> +    global_qtest = qtest_startf("-drive if=none,id=drv0,file=null-co://,format=raw "
> +                                "-drive if=none,id=drv1,file=null-co://,format=raw "
> +                                "-device virtio-scsi-ccw "
> +                                "-device scsi-hd,drive=drv0");
> +    qtest_qmp_device_add("scsi-hd", "scsihd", "'drive': 'drv1'");
> +    qtest_qmp_device_del("scsihd");
> +
> +    qtest_end();
> +}
> +
> +int main(int argc, char **argv)
> +{
> +    int ret;
> +
> +    g_test_init(&argc, &argv, NULL);
> +    qtest_add_func("/virtio/balloon/nop", virtio_balloon_nop);
> +    qtest_add_func("/virtio/console/nop", virtconsole_nop);
> +    qtest_add_func("/virtio/serialport/nop", virtserialport_nop);
> +    qtest_add_func("/virtio/serial/nop", virtio_serial_nop);
> +    qtest_add_func("/virtio/serial/hotplug", virtio_serial_hotplug);
> +    qtest_add_func("/virtio/block/nop", virtio_blk_nop);
> +    qtest_add_func("/virtio/net/nop", virtio_net_nop);
> +    qtest_add_func("/virtio/9p/nop", virtio_9p_nop);
> +    qtest_add_func("/virtio/rng/nop", virtio_rng_nop);
> +    qtest_add_func("/virtio/scsi/nop", virtio_scsi_nop);
> +    qtest_add_func("/virtio/scsi/hotplug", virtio_scsi_hotplug);
> +
> +    ret = g_test_run();
> +
> +    return ret;
> +}

I think you could omit the virtio_net_nop test here, since we already
check that device in tests/pxe-test.c (and maybe also virtio_blk and
virtio_scsi since they are tested in tests/cdrom-test.c).

Anyway:

Reviewed-by: Thomas Huth <thuth@redhat.com>