[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?

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    Boris.

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