On Thu, Nov 29, 2018 at 06:51:49PM +0300, Mika Westerberg wrote:
> Recent systems with Thunderbolt ports may be utilizing IOMMU to prevent DMA
> attacks. This is different from the previous security level based scheme
> because the connected device cannot access system memory outside of the
> regio
Recent systems with Thunderbolt ports may be utilizing IOMMU to prevent DMA
attacks. This is different from the previous security level based scheme
because the connected device cannot access system memory outside of the
regions allocated for it by the driver.
When enabled the BIOS makes sure no d
