hmm, isn't the IOMMU there to prevent DMA access to random/unregistered memory regions - why is the full lower 4G region opened at all?
hmm, isn't the IOMMU there to prevent DMA access to random/unregistered memory regions - why is the full lower 4G region opened at all?
Windows 10 IOMMU vt-d can mitigate this attack! But vt-d has to be manually configured, it's turned off by default and only available on windows 10.
thanks! kind of scary that it's still comparably easy to access system memory from the outside...