On Fri, Nov 15, 2019 at 06:12:48PM +0000, Robin Murphy wrote: > And is that any different from where you would choose to "just" set a > generic bypass flag?
Same spots, as intel-iommu moves from the identify to a dma domain when setting a 32-bit mask. But that means once a 32-bit mask is set we can't ever go back to the 64-bit one. And we had a couple drivers playing interesting games there. FYI, this is the current intel-iommu WIP conversion to the dma bypass flag: http://git.infradead.org/users/hch/misc.git/shortlog/refs/heads/dma-bypass