Messages in this thread | | | Date | Thu, 16 May 2019 10:16:27 +0200 | From | Ingo Molnar <> | Subject | Re: [PATCH] cpu/speculation: Warn on unsupported mitigations= parameter |
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* Jiri Kosina <jikos@kernel.org> wrote:
> On Thu, 16 May 2019, Geert Uytterhoeven wrote: > > > Currently, if the user specifies an unsupported mitigation strategy on > > the kernel command line, it will be ignored silently. The code will > > fall back to the default strategy, possibly leaving the system more > > vulnerable than expected. > > Honestly, I am not convinced. We are not doing this for vast majority of > other cmdline options either, if for any at all.
That's really a weakness - I've been bitten by this previously: I typoed or mis-remembered a command line option and didn't have it while I thought I had it.
Our boot-commandline library is pretty user-unfriendly.
Thanks,
Ingo
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