I/O memory isolation management endpoint
This endpoint is intended for managing the isolation of physical memory regions used by devices on a PCIe bus for DMA. (Isolation is provided by the IOMMU.)
Information about methods of the endpoint is provided in the table below.
Methods of the iommu.IOMMU endpoint (kl.core.IOMMU interface)
Method |
Method purpose and parameters |
Potential danger of the method |
|---|---|---|
|
Purpose Attaches a device on a PCIe bus to the automatically created IOMMU domain associated with the calling process. Parameters
|
Attaches a device on a PCIe bus managed by another process to an IOMMU domain associated with the calling process, which leads to failure of the device. It is recommended to monitor the address of a device on a PCIe bus. |
|
Purpose Detaches a device on a PCIe bus from the automatically created IOMMU domain associated with the calling process. Parameters
|
N/A |
|
Purpose Creates an IOMMU domain associated with the calling process. Parameters
|
Allows the kernel memory to be used up by creating a multitude of objects within it. |
|
Purpose Attaches a device on a PCIe bus to the defined IOMMU domain associated with the calling process. Parameters
|
Attaches a device on a PCIe bus managed by another process to an IOMMU domain associated with the calling process, which leads to failure of the device. It is recommended to monitor the address of a device on a PCIe bus. |
|
Purpose Detaches a device on a PCIe bus from the defined IOMMU domain associated with the calling process. Parameters
|
N/A |