linux-kernel - Re: [PATCH v8 3/4] iommufd/selftest: Add IOMMU_TEST_OP_ACCESS_REPLACE

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Message-ID: <ZMFSFKjPe31XYfCd@nvidia.com>
Date:   Wed, 26 Jul 2023 14:04:20 -0300
From:   Jason Gunthorpe <jgg@...dia.com>
To:     Nicolin Chen <nicolinc@...dia.com>
Cc:     kevin.tian@...el.com, alex.williamson@...hat.com,
        yi.l.liu@...el.com, joro@...tes.org, will@...nel.org,
        robin.murphy@....com, shuah@...nel.org,
        linux-kernel@...r.kernel.org, iommu@...ts.linux.dev,
        kvm@...r.kernel.org, linux-kselftest@...r.kernel.org,
        mjrosato@...ux.ibm.com, farman@...ux.ibm.com
Subject: Re: [PATCH v8 3/4] iommufd/selftest: Add
 IOMMU_TEST_OP_ACCESS_REPLACE_IOAS coverage

On Mon, Jul 24, 2023 at 12:47:06PM -0700, Nicolin Chen wrote:
> Add a new IOMMU_TEST_OP_ACCESS_REPLACE_IOAS to allow replacing the
> access->ioas, corresponding to the iommufd_access_replace() helper.
> 
> Then add a replace coverage as a part of user_copy test case, which
> basically repeats the copy test after replacing the old ioas with a
> new one.
> 
> Reviewed-by: Kevin Tian <kevin.tian@...el.com>
> Signed-off-by: Nicolin Chen <nicolinc@...dia.com>
> ---
>  drivers/iommu/iommufd/iommufd_test.h          |  4 +++
>  drivers/iommu/iommufd/selftest.c              | 19 ++++++++++++
>  tools/testing/selftests/iommu/iommufd.c       | 29 +++++++++++++++++--
>  tools/testing/selftests/iommu/iommufd_utils.h | 19 ++++++++++++
>  4 files changed, 69 insertions(+), 2 deletions(-)

Reviewed-by: Jason Gunthorpe <jgg@...dia.com>

Jason