The key is in *your* already trusted device. It's not some kind of global master key. You need to break into an already trusted device. The right way to stop DMA attacks is with an IOMMU, which is complementary to all this. Proper IOMMU usage blocks all this crap anyway.
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Gamers don't run Linux. Hypervisors don't need to use the same architecture end user devices do.
Ah, so your argument is that Linux should be secure on the desktop but Windows shouldn't? And that Linux should have crippled graphics performance because nobody cares? Sorry, no. I'm not a PC gamer but I enjoy my compositing, Blender, and other GPU-reliant tasks performing well
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Roughly. I just want the gpu reliant tasks gone from the essential software stacks. For so many reasons.
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Giving people a choice between security and performance, people will choose performance. Doing it the lazy way is dumb and does not help improve the state of things. We need solutions that actually perform so they can be universally deployed.
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