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sysfs-kernel-iommu_groups

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  • sysfs-kernel-iommu_groups 1.11 KiB
    What:		/sys/kernel/iommu_groups/
    Date:		May 2012
    KernelVersion:	v3.5
    Contact:	Alex Williamson <alex.williamson@redhat.com>
    Description:	/sys/kernel/iommu_groups/ contains a number of sub-
    		directories, each representing an IOMMU group.  The
    		name of the sub-directory matches the iommu_group_id()
    		for the group, which is an integer value.  Within each
    		subdirectory is another directory named "devices" with
    		links to the sysfs devices contained in this group.
    		The group directory also optionally contains a "name"
    		file if the IOMMU driver has chosen to register a more
    		common name for the group.
    Users:
    
    What:		/sys/kernel/iommu_groups/reserved_regions
    Date: 		January 2017
    KernelVersion:  v4.11
    Contact: 	Eric Auger <eric.auger@redhat.com>
    Description:    /sys/kernel/iommu_groups/reserved_regions list IOVA
    		regions that are reserved. Not necessarily all
    		reserved regions are listed. This is typically used to
    		output direct-mapped, MSI, non mappable regions. Each
    		region is described on a single line: the 1st field is
    		the base IOVA, the second is the end IOVA and the third
    		field describes the type of the region.