Re: [patch 01/24] x86/speculation: Update the TIF_SSBD comment

[Borislav Petkov]

On Thu, Nov 22, 2018 at 11:30:04AM -0600, Josh Poimboeuf wrote:
> But it does describe its purpose, especially in relation to the
> 'spectre_v2=' option.

Sure, but the thing I'm proposing

spectre_v2_task_isol=

describes it more precisely, IMHO. :)

I.e., "enable/disable spectre v2 task isolation".

> Previously 'spectre_v2=' might have been more appropriately named
> 'spectre_v2_kernel=' because it only protected the kernel from Spectre
> v2 attacks.  Now with these new patches, 'spectre_v2=on' will protect
> the entire system.

Hmmm, crazy idea: can we extend the options of spectre_v2= nstead?

spectre_v2=user_isolation,...
spectre_v2=kernel,...
spectre_v2=task_isolation,...

and so on?

This way we can do a couple of option switches in one go.

Hmmm?

> Now off to eat a giant turkey.

Try not to fall into a turkey coma. :-P

-- 
Regards/Gruss,
    Boris.

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