Messages in this thread | | | Date | Mon, 9 Jan 2023 13:08:37 -0800 | Subject | Re: [PATCH v2] x86/retbleed: add "stuff" mode admin documentation | From | Randy Dunlap <> |
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On 1/9/23 09:19, Dave Hansen wrote: > 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).
OK, will do (v3). :)
Thanks.
-- ~Randy
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