Messages in this thread | | | Date | Mon, 9 Jan 2023 09:19:09 -0800 | Subject | Re: [PATCH v2] x86/retbleed: add "stuff" mode admin documentation | From | Dave Hansen <> |
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On 1/9/23 08:08, Randy Dunlap wrote: > + stuff - Enables "stuffing" mode mitigation, > + which uses return thunking and call depth > + tracking. Only in effect if > + CONFIG_CALL_DEPTH_TRACKING is set and > + Spectre V2 mitigation mode is > + "retpoline". > + IBRS is fully secure mitigation but is > + more costly (slower) than stuffing.
The "fully secure" thing makes me cringe a bit.
I'd suggest saying:
IBRS is a stronger mitigation but is more costly than stuffing (slower).
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