Re: [patch 00/38] x86/retbleed: Call depth tracking mitigation

From: Joao Moreira
Date: Mon Jul 18 2022 - 20:19:26 EST

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The extra instruction is likely less of a problem than the extra register used.

FWIIW, per-ABI, R11 is a scratch-reg and should be usable without hard consequences in this scenario.

Joao

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In reply to: Linus Torvalds: "Re: [patch 00/38] x86/retbleed: Call depth tracking mitigation"
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