I remember hearing about this a while ago. DMA would bypass even kernel-level anti-cheat. So they arms race it and disable DMA. I'm curious how this impacts performance. DMA exists for a (legit) reason. I dislike the idea that my system loses DMA because someone else cheats.

Following up with some clarifying bits: It does force system-wide IOMMU, which at best slows down DMA (TLB misses) and at worst disables DMA on devices and drivers that are not IOMMU-aware. However, this is only set on systems identified as cheating.

@ProgramMax Dont agree to ToS. If a lot of people adopt the mentality to not accept bullshit shoved in their faces, game devs will have to switch tactic to not send the info to your client if you shudnt see it in game, rather than send to client mem and use intrusive AC to ensure its hidden

@ProgramMax they enforce DMA remapping support for the fpga board IIUC? DMA is not disabled as a whole from this thread: x.com/deteccphilippe… learn.microsoft.com/en-us/windows/…