On Wed, 7 Nov 2012 22:28:17 +0100 Thomas Renninger <trenn@xxxxxxx> wrote: > Hi, > > I have seen some patches in this area and I wonder whether MSR and EC write accesses from userspace got closed already. You need to cover read accesses as well I suspect to be completely paranoid safe. I would also look at MTRRs because mis-setting MTRRs allows you to get firmware to do interesting things in certain situations because the commands being issued to stuff like the GPU may get corrupted. Alan -- To unsubscribe from this list: send the line "unsubscribe linux-efi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html