Re: [PATCH 4/4] x86/tsx: Add cmdline tsx=fake to not clear CPUID bits RTM and HLE

[Borislav Petkov]

On Wed, Jun 09, 2021 at 02:14:39PM -0700, Pawan Gupta wrote:
> On CPUs that deprecated TSX, clearing the enumeration bits CPUID.RTM and
> CPUID.HLE may not be desirable in some corner cases. Like a saved guest
> would refuse to resume if it was saved before the microcode update
> that deprecated TSX.

That corner case needs a lot more justification. Otherwise this is just
silly.

-- 
Regards/Gruss,
    Boris.

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