Re: [PATCH v4 2/2] selftests: drivers/s390x: Add uvdevice tests

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On 5/10/22 7:47 PM, Steffen Eiden wrote:
> Adds some selftests to test ioctl error paths of the uv-uapi.
> The Kconfig S390_UV_UAPI must be selected and the Ultravisor facility
> must be available. The test can be executed by non-root, however, the
> uvdevice special file /dev/uv must be accessible for reading and
> writing which may imply root privileges.
> 
>   ./test-uv-device
>   TAP version 13
>   1..6
>   # Starting 6 tests from 3 test cases.
>   #  RUN           uvio_fixture.att.fault_ioctl_arg ...
>   #            OK  uvio_fixture.att.fault_ioctl_arg
>   ok 1 uvio_fixture.att.fault_ioctl_arg
>   #  RUN           uvio_fixture.att.fault_uvio_arg ...
>   #            OK  uvio_fixture.att.fault_uvio_arg
>   ok 2 uvio_fixture.att.fault_uvio_arg
>   #  RUN           uvio_fixture.att.inval_ioctl_cb ...
>   #            OK  uvio_fixture.att.inval_ioctl_cb
>   ok 3 uvio_fixture.att.inval_ioctl_cb
>   #  RUN           uvio_fixture.att.inval_ioctl_cmd ...
>   #            OK  uvio_fixture.att.inval_ioctl_cmd
>   ok 4 uvio_fixture.att.inval_ioctl_cmd
>   #  RUN           attest_fixture.att_inval_request ...
>   #            OK  attest_fixture.att_inval_request
>   ok 5 attest_fixture.att_inval_request
>   #  RUN           attest_fixture.att_inval_addr ...
>   #            OK  attest_fixture.att_inval_addr
>   ok 6 attest_fixture.att_inval_addr
>   # PASSED: 6 / 6 tests passed.
>   # Totals: pass:6 fail:0 xfail:0 xpass:0 skip:0 error:0
Maybe we shouldn't add the result like this in the commit message. The
test order may change and it may become invalid soon. Just put it after
the commit message.

> Signed-off-by: Steffen Eiden <seiden@xxxxxxxxxxxxx>
> Acked-by: Janosch Frank <frankja@xxxxxxxxxxxxx>
> ---
>  MAINTAINERS                                   |   1 +
>  tools/testing/selftests/Makefile              |   1 +
>  tools/testing/selftests/drivers/.gitignore    |   1 +
>  .../selftests/drivers/s390x/uvdevice/Makefile |  22 ++
>  .../selftests/drivers/s390x/uvdevice/config   |   1 +
>  .../drivers/s390x/uvdevice/test_uvdevice.c    | 276 ++++++++++++++++++
>  6 files changed, 302 insertions(+)
>  create mode 100644 tools/testing/selftests/drivers/s390x/uvdevice/Makefile
>  create mode 100644 tools/testing/selftests/drivers/s390x/uvdevice/config
>  create mode 100644 tools/testing/selftests/drivers/s390x/uvdevice/test_uvdevice.c
> 
> diff --git a/MAINTAINERS b/MAINTAINERS
> index b42ab4a35e18..46a9b1467380 100644
> --- a/MAINTAINERS
> +++ b/MAINTAINERS
> @@ -10786,6 +10786,7 @@ F:	arch/s390/kernel/uv.c
>  F:	arch/s390/kvm/
>  F:	arch/s390/mm/gmap.c
>  F:	drivers/s390/char/uvdevice.c
> +F:	tools/testing/selftests/drivers/s390x/uvdevice/
>  F:	tools/testing/selftests/kvm/*/s390x/
>  F:	tools/testing/selftests/kvm/s390x/
>  
> diff --git a/tools/testing/selftests/Makefile b/tools/testing/selftests/Makefile
> index 2319ec87f53d..d6b307371ef7 100644
> --- a/tools/testing/selftests/Makefile
> +++ b/tools/testing/selftests/Makefile
> @@ -10,6 +10,7 @@ TARGETS += core
>  TARGETS += cpufreq
>  TARGETS += cpu-hotplug
>  TARGETS += drivers/dma-buf
> +TARGETS += drivers/s390x/uvdevice
>  TARGETS += efivarfs
>  TARGETS += exec
>  TARGETS += filesystems
> diff --git a/tools/testing/selftests/drivers/.gitignore b/tools/testing/selftests/drivers/.gitignore
> index ca74f2e1c719..09e23b5afa96 100644
> --- a/tools/testing/selftests/drivers/.gitignore
> +++ b/tools/testing/selftests/drivers/.gitignore
> @@ -1,2 +1,3 @@
>  # SPDX-License-Identifier: GPL-2.0-only
>  /dma-buf/udmabuf
> +/s390x/uvdevice/test_uvdevice
> diff --git a/tools/testing/selftests/drivers/s390x/uvdevice/Makefile b/tools/testing/selftests/drivers/s390x/uvdevice/Makefile
> new file mode 100644
> index 000000000000..5e701d2708d4
> --- /dev/null
> +++ b/tools/testing/selftests/drivers/s390x/uvdevice/Makefile
> @@ -0,0 +1,22 @@
> +include ../../../../../build/Build.include
> +
> +UNAME_M := $(shell uname -m)
> +
> +ifneq ($(UNAME_M),s390x)
> +nothing:
> +.PHONY: all clean run_tests install
> +.SILENT:
> +else
> +
> +TEST_GEN_PROGS := test_uvdevice
> +
> +top_srcdir ?= ../../../../../..
> +KSFT_KHDR_INSTALL := 1
> +khdr_dir = $(top_srcdir)/usr/include
This doesn't work in different build cases. Please use $(KHDR_INCLUDES)
instead.

> +LINUX_TOOL_ARCH_INCLUDE = $(top_srcdir)/tools/arch/$(ARCH)/include
Which header files do you need from here? I'm not sure what is the
purpose of the header files in $(top_srcdir)/tools/arch and where they
are used.

> +
> +CFLAGS += -Wall -Werror -static -I$(khdr_dir) -I$(LINUX_TOOL_ARCH_INCLUDE)
> +
> +include ../../../lib.mk
> +
> +endif
-- 
Muhammad Usama Anjum



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