On Sat, Mar 19, 2022 at 11:29:06PM -0700, Rajat Jain wrote: > The "DmaProperty" is supported and documented by Microsoft here: > https://docs.microsoft.com/en-us/windows-hardware/drivers/pci/dsd-for-pcie-root-ports > They use this property for DMA protection: > https://docs.microsoft.com/en-us/windows/security/information-protection/kernel-dma-protection-for-thunderbolt > > Support the "DmaProperty" with the same semantics. This is useful for > internal PCI devices that do not hang off a PCIe rootport, but offer > an attack surface for DMA attacks (e.g. internal network devices). > > Signed-off-by: Rajat Jain <rajatja@xxxxxxxxxx> Reviewed-by: Mika Westerberg <mika.westerberg@xxxxxxxxxxxxxxx>
