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234489ac56
vfio-cdx driver enables IOCTLs for user space to query MMIO regions for CDX devices and mmap them. This change also adds support for reset of CDX devices. With VFIO enabled on CDX devices, user-space applications can also exercise DMA securely via IOMMU on these devices. This change adds the VFIO CDX driver and enables the following ioctls for CDX devices: - VFIO_DEVICE_GET_INFO: - VFIO_DEVICE_GET_REGION_INFO - VFIO_DEVICE_RESET Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Reviewed-by: Pieter Jansen van Vuuren <pieter.jansen-van-vuuren@amd.com> Tested-by: Nikhil Agarwal <nikhil.agarwal@amd.com> Link: https://lore.kernel.org/r/20230531124557.11009-1-nipun.gupta@amd.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
17 lines
431 B
Text
17 lines
431 B
Text
# SPDX-License-Identifier: GPL-2.0
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#
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# VFIO CDX configuration
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#
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# Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
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#
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config VFIO_CDX
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tristate "VFIO support for CDX bus devices"
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depends on CDX_BUS
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select EVENTFD
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help
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Driver to enable VFIO support for the devices on CDX bus.
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This is required to make use of CDX devices present in
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the system using the VFIO framework.
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If you don't know what to do here, say N.
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