Messages in this thread | | | Date | Wed, 6 Jul 2011 16:17:11 -0700 | From | Andi Kleen <> | Subject | Re: [PATCH 1/3] x86: drop unnecessary kernel_eflags variable from 64 bit. |
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> Well lets ask Linus and Andi?
The original idea was that if someone extends EFLAGS with new bits the BIOS could set them. Strictly said the Intel Manual specifies that ("reserved bits -- always set to values previously read")
But that never really worked out and I don't think anyone would dare extending it now. So hardcoding is fine I guess.
-Andi
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