| Date | Tue, 22 Apr 2014 10:24:59 -0700 | From | "H. Peter Anvin" <> | Subject | Re: [PATCH] x86-64: espfix for 64-bit mode *PROTOTYPE* |
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On 04/22/2014 10:20 AM, Andrew Lutomirski wrote: > > It won't, given the above. I misunderstood what you were checking. > > It still seems to me that only #GP needs this special handling. The > IST entries should never run on the espfix stack, and #MC, #DB, #NM, > and #SS (I missed that one earlier) use IST. > > Would it ever make sense to make #GP use IST as well? That might > allow espfix_adjust_stack to be removed entirely. I don't know how > much other fiddling would be needed to make that work. >
Interesting thought. It might even be able to share an IST entry with #SS.
-hpa
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