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8a97ab9b8b
Support Bus master enable and disable on VFIO-CDX devices using VFIO_DEVICE_FEATURE_BUS_MASTER flag over VFIO_DEVICE_FEATURE IOCTL. Co-developed-by: Shubham Rohila <shubham.rohila@amd.com> Signed-off-by: Shubham Rohila <shubham.rohila@amd.com> Signed-off-by: Nipun Gupta <nipun.gupta@amd.com> Link: https://lore.kernel.org/r/20230915045423.31630-3-nipun.gupta@amd.com Signed-off-by: Alex Williamson <alex.williamson@redhat.com>
30 lines
559 B
C
30 lines
559 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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/*
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* Copyright (C) 2022-2023, Advanced Micro Devices, Inc.
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*/
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#ifndef VFIO_CDX_PRIVATE_H
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#define VFIO_CDX_PRIVATE_H
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#define VFIO_CDX_OFFSET_SHIFT 40
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static inline u64 vfio_cdx_index_to_offset(u32 index)
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{
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return ((u64)(index) << VFIO_CDX_OFFSET_SHIFT);
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}
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struct vfio_cdx_region {
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u32 flags;
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u32 type;
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u64 addr;
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resource_size_t size;
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};
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struct vfio_cdx_device {
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struct vfio_device vdev;
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struct vfio_cdx_region *regions;
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u32 flags;
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#define BME_SUPPORT BIT(0)
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};
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#endif /* VFIO_CDX_PRIVATE_H */
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