iommufd/selftest: Add IOPF support for mock device

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Extend the selftest mock device to support generating and responding to
an IOPF. Also add an ioctl interface to userspace applications to trigger
the IOPF on the mock device. This would allow userspace applications to
test the IOMMUFD's handling of IOPFs without having to rely on any real
hardware.

Link: https://lore.kernel.org/r/20240702063444.105814-10-baolu.lu@linux.intel.com
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>

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Lu Baolu 2024-07-02 14:34:43 +08:00 • committed by Jason Gunthorpe

parent 34765cbc67

commit ddee199710

2 changed files with 72 additions and 0 deletions

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8

drivers/iommu/iommufd/iommufd_test.h

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64

drivers/iommu/iommufd/selftest.c

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