Re: [seL4] dma and sel4

The documentation states that VT-d is supported. Is DMA supported on the Intel motherboards where VT-d is supported? Alexander On Tue, Aug 5, 2014 at 7:23 AM, Gerwin Klein wrote:

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 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

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