// wdm.h

typedef union _IOMMU_DMA_DOMAIN_CREATION_FLAGS {
  struct {
    ULONGLONG Reserved : 64;
  };
  ULONGLONG AsUlonglong;
} IOMMU_DMA_DOMAIN_CREATION_FLAGS, *PIOMMU_DMA_DOMAIN_CREATION_FLAGS;
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Windows Driver Kit DDI reference (ns-wdm-iommu_dma_domain_creation_flags)

Description

The IOMMU_DMA_DOMAIN_CREATION_FLAGS structure defines configuration flags for a domain being created by IOMMU_DOMAIN_CREATE_EX.

Members

`Reserved`

All flags are currently reserved. This field must be zero.

`AsUlonglong`

Represents all flags as a single ULONGLONG.

Remarks

Currently the flags are unused and must be all zero when passed in to IOMMU_DOMAIN_CREATE_EX.

IOMMU_DMA_DOMAIN_CREATION_FLAGS - NtDoc