[MODERATED] Re: [PATCH v7 04/10] TAAv7 4
Borislav Petkov <[email protected]> Tue, 22 Oct 2019 23:46:29 +0200
| Newsgroups | org.kernel.lore.historical-speck |
|---|---|
| Message-ID | <[email protected]> |
On Tue, Oct 22, 2019 at 04:38:20PM -0500, speck for Josh Poimboeuf wrote:
> I'm not sure what you mean, I think the patches mitigate TAA by default
> when TSX is on (ignoring SMT of course).
>
> Also, suspending disbelief for a moment and assuming TSX becomes a huge
> success story and you want to safely enable it 5 years down the road,
> you'd have to do
>
> tsx=on,tsx_async_abort=full,nosmt,tsx_bug2=full,nosmt .... etc
>
> when you just want to turn the darned thing on without having to worry
> about specifying all the mitigations for all currently known bugs.
But when you want to enable it 5 years from now, you simply do
tsx=on
Why would you even need to supply anything after it?
--
Regards/Gruss,
Boris.
SUSE Software Solutions Germany GmbH, GF: Felix Imendörffer, HRB 36809, AG Nürnberg
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