[MODERATED] Re: Re: [PATCH v5 08/11] TAAv5 8

On Mon, 14 Oct 2019, speck for Borislav Petkov wrote:

> > 	not everybody (by far) is reading those. If this regressess on a=20
> > 	handful of platforms, we (together with the OS vendor) could=20
> > 	probably handle the followup reports, but if it happens all across=20
> > 	the board, it'd surely be overwhelming, to put it mildly. It'll"
> > 	basically promptly escalate to a support disaster."
> 
> Ok, how about we make it a config option: CONFIG_TSX_DEFAULT_ON
>
> and we - distro kernels - enable it. Mainline leaves it off.
> 
> Problem solved.
> 
> Hmmm?

If noone would strongly object to that config option, I'll happily send a 
followup patch on top of Pawan's series that'd be adding it (defaulting to 
'n', as that appears to be the common consensus for upstream for totally 
understandable reasons).

Otherwise, some distros might just have to flip the default in the sources 
by non-upstream patch, I am afraid (even though we haven't made it to the 
point where are are making that decision yet).

Thanks,

-- 
Jiri Kosina
SUSE Labs