// wdm.h

IOMMU_DOMAIN_ATTACH_PASID_DEVICE IommuDomainAttachPasidDevice;

NTSTATUS IommuDomainAttachPasidDevice(
  PIOMMU_DMA_DOMAIN Domain,
  PIOMMU_DMA_PASID_DEVICE PasidDevice
)
{...}
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Windows Driver Kit DDI reference (nc-wdm-iommu_domain_attach_pasid_device)

Description

IOMMU_DOMAIN_ATTACH_PASID_DEVICE attaches a PASID sub-device to an existing domain.

Parameters

`Domain`

[in] Handle to the domain that the sub-device will attach to.

`PasidDevice`

[in] Pointer to the IOMMU_DMA_PASID_DEVICE structure that represents the PASID sub-device to be attached.

Return value

Returns an NTSTATUS value. Possible values include:

Return code	Description
STATUS_SUCCESS	On successful sub-device attachment to the domain.
STATUS_INSUFFICIENT_RESOURCES	Not enough memory to allocate a cached device for attach/detach bookkeeping.
STATUS_INVALID_PARAMETER_1	The device is not allowed to attach to the domain type provided.
STATUS_UNSUCCESSFUL	The sub-device is already attached to a domain.
STATUS_ACCESS_DENIED	The sub-device is currently not allowed to attach to this domain.

Remarks

It is the driver's responsibility to ensure that this function is not called concurrently with any of the following on the same device:

IOMMU_PASID_DEVICE_DELETE
IOMMU_DOMAIN_DELETE
IOMMU_DOMAIN_ATTACH_PASID_DEVICE
IOMMU_DOMAIN_DETACH_PASID_DEVICE

IOMMU_DOMAIN_ATTACH_PASID_DEVICE - NtDoc