Messages in this thread | | | Subject | Re: [PATCH v2 0/9] x86/xsaves: Fix XSAVES known issues | From | Dave Hansen <> | Date | Thu, 25 Feb 2016 12:57:28 -0800 |
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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.
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