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amluto
on Aug 10, 2017
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Bringing Call Gates Back
64-bit call gates may well be useless, but the corresponding return instruction (LRETQ or whatever you want to call it) can be useful. I have prototype Linux code to use it instead of IRET, and it's considerably faster.
aionescu
on Aug 10, 2017
[–]
Got some numbers/public information? Would love to know more.
amluto
on Aug 12, 2017
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My old prototype is here:
https://git.kernel.org/pub/scm/linux/kernel/git/luto/linux.g...
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