this post was submitted on 13 Nov 2025
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Linux Gaming

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Eurogamer asked Valve if there had been any progress in helping games requiring kernel-level anti-cheat, with Valve responding that the Steam Machine's expected focus on multiplayer gaming could encou (europe.pub)
submitted 2 weeks ago by mr_MADAFAKA@lemmy.ml to c/linux_gaming@lemmy.world
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https://www.eurogamer.net/will-battlefield-6-work-on-steam-machine-valve-hopes-its-new-hardware-will-prompt-a-fresh-discussion-with-developers-over-kernel-level-anti-cheat

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[–] fruitycoder@sh.itjust.works 6 points 2 weeks ago (2 children)

You absolutely can have that and more, what we in industry, attestation on Linux. Though the most obvious adaptation of that would the confidential computing space for key bits of the game data instead of the whole fucking OS. Though hardware level memory encryption is a server CPU feature that I don't think any desktop ones support yet

[–] noxypaws@pawb.social 2 points 2 weeks ago (2 children)

Ryzen so-called "AI" Max Pro has hardware level memory encryption, at least it does on my HP ZBook. But it might be actually be the first laptop to do that as far as I know

[–] fruitycoder@sh.itjust.works 3 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Ahh, it's a got a system called Memory Guard but that is just brand name for Transparent SME. Which still, freaking finally, that's awesome. Though in the context of confidential computing, where container/VM memory spaces are assured through encryption it doesn't help since there is no granular page control just the entire memory system transparently to the system above.

Though I'm not sure if that is a hardware, firmware, or driver limitation (I think below driver because of the reports I saw of fedora failing to boot with the kernel flag set to use it).

https://en.wikichip.org/wiki/x86/sme

[–] noxypaws@pawb.social 3 points 2 weeks ago

On my laptop it seems totally transparent to the OS, but I haven't tried setting any kernel params for it, didn't even occur to me there was such a thing but it'd make sense if there is

[–] fruitycoder@sh.itjust.works 2 points 2 weeks ago

Ooohh, awesome! I gotta check that out then.

[–] Evotech@lemmy.world 2 points 2 weeks ago* (last edited 2 weeks ago) (1 children)

Yeah confidential compute would be the way to go. But it's expensive and not mainstream yet

[–] fruitycoder@sh.itjust.works 1 points 2 weeks ago

Worse yet is gaming is normally a lot PCIe data, that encryption is still very expensive performance wise.