Yes. For the verification to hold, DMA needs to be off, or the driver (and hardware) for the DMA device needs to be trusted/verified.
We're working on eliminating that for A15 with SystemMMUs, but that will be a while. Cheers, Gerwin On 05.08.2014, at 3:09 pm, Tim Newsham <[email protected]> wrote: > Does the use of DMA invalidate security guarantees > in the ARM ports (and KZM in particular) currently? > > -- > Tim Newsham | www.thenewsh.com/~newsham | @newshtwit | thenewsh.blogspot.com > > _______________________________________________ > Devel mailing list > [email protected] > https://sel4.systems/lists/listinfo/devel _______________________________________________ Devel mailing list [email protected] https://sel4.systems/lists/listinfo/devel
