I've seen it enabled on the XPS 13 7390 2-in-1, and I see it enabled on a non-Dell system I have here. Kernel DMA Protection requires support from the hardware, firmware, OS, and drivers. And even when all of that support is available, it's only actually used for peripherals that actually support it, since that's a requirement too. For peripherals that don't support it, the system has to fall back to a "legacy" Thunderbolt security level for that specific peripheral.
jphughan
9 Legend
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14K Posts
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May 2nd, 2020 08:00
I've seen it enabled on the XPS 13 7390 2-in-1, and I see it enabled on a non-Dell system I have here. Kernel DMA Protection requires support from the hardware, firmware, OS, and drivers. And even when all of that support is available, it's only actually used for peripherals that actually support it, since that's a requirement too. For peripherals that don't support it, the system has to fall back to a "legacy" Thunderbolt security level for that specific peripheral.
superdrap
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May 8th, 2020 07:00
Just a quick one: do you have Windows Home or more advanced Windows version?
jphughan
9 Legend
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May 8th, 2020 08:00
@superdrap I have Win10 Pro, but I don't think that makes a difference for Kernel DMA Protection.
superdrap
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May 8th, 2020 08:00
It shouldn't but who knows.