3 ms·
Trustzone is ARM's hardware access control. But I suspect AMD's PSP which incorporates an on-die ARM core rather than just implement the Trustzone ip, is doing
by julian_1 9y ago
Trustzone is ARM's hardware access control. But I suspect AMD's PSP which incorporates an on-die ARM core rather than just implement the Trustzone ip, is doing a lot more. Reportedly it can manage DMA actions itself independently of the amd64 core.