ns-d3dkmddi-_dxgkargcb_mapmdltoiommu.md

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NS:d3dkmddi._DXGKARGCB_MAPMDLTOIOMMU	DXGKARGCB_MAPMDLTOIOMMU (d3dkmddi.h)	The DXGKARGCB_MAPMDLTOIOMMU structure contains the arguments used by the DXGKCB_MAPMDLTOIOMMU callback function, to map a memory descriptor list (MDL) to the IOMMU.	10/13/2021	DXGKARGCB_MAPMDLTOIOMMU structure	_DXGKARGCB_MAPMDLTOIOMMU, DXGKARGCB_MAPMDLTOIOMMU, *INOUT_PDXGKARGCB_MAPMDLTOIOMMU	d3dkmddi.h			Windows 10, version 1803 (WDDM 2.4)									DXGKARGCB_MAPMDLTOIOMMU	Windows	display	_DXGKARGCB_MAPMDLTOIOMMU d3dkmddi/_DXGKARGCB_MAPMDLTOIOMMU DXGKARGCB_MAPMDLTOIOMMU d3dkmddi/DXGKARGCB_MAPMDLTOIOMMU	apiref	HeaderDef	d3dkmddi.h	_DXGKARGCB_MAPMDLTOIOMMU DXGKARGCB_MAPMDLTOIOMMU

DXGKARGCB_MAPMDLTOIOMMU structure

-description

The DXGKARGCB_MAPMDLTOIOMMU structure contains the arguments used by the DXGKCB_MAPMDLTOIOMMU callback function, to map a memory descriptor list (MDL) to the IOMMU.

-struct-fields

-field pMdl [in]

An MDL which must be populated with valid pages. The MDL and the pages it points to must remain unchanged until the corresponding unmap call is made.

-field hMemoryHandle [out]

A Dxgkrnl tracking handle for the allocation. This value should be passed to the corresponding DXGKCB_UNMAPMDLFROMIOMMU function.

-remarks

See IOMMU-based GPU isolation for more information.

-see-also

DXGKCB_MAPMDLTOIOMMU