Re: [GIT PULL] Kernel lockdown for secure boot

From: Alan Cox
Date: Thu Apr 05 2018 - 14:00:20 EST



> How? When there are random DMA-capable PCI devices that are driven by
> userland tools that are mmap()ing the BARs out of sysfs, how do we
> simultaneously avoid breaking those devices while also preventing the
> majority of users from being vulnerable to an attacker just DMAing over the
> kernel?

VT-D