Mobile devices could, if the SOC allowed every device to be isolated with an IOMMU. Apple does this, Nvidia too (though some SoCs are broken) and I think Qualco

Mobile devices could, if the SOC allowed every device to be isolated with an IOMMU. Apple does this, Nvidia too (though some SoCs are broken) and I think Qualcomm might as well. A lot of the other ARM SoCs seem to have just one or maybe two domains (GPU and everything else), and a non standard IOMMU for even that too. I’ve looked a few times for an ARM SBC with a nice architecture to play with this stuff, Nvidia seemed to be the only option but they are also unobtanium right now.