On 02/25/2016 12:26 PM, Yu-cheng Yu wrote: > Patch 9 re-enables XSAVES. Could we also add one more thing to this: A big, fat warning that supervisor states are not supported? We might get that from an eventual use of xfeature_uncompacted_offset(), but we need something that's very clear.
I just don't want somebody coming along and shoving a supervisor state in to XCR0 and expecting it to work just because we have XSAVES support itself. That might happen in-tree or out-of-tree as things get prototyped.
