Messages in this thread | | | Date | Fri, 11 Jun 2021 14:37:32 -0700 | From | Pawan Gupta <> | Subject | Re: [PATCH 4/4] x86/tsx: Add cmdline tsx=fake to not clear CPUID bits RTM and HLE |
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On 11.06.2021 12:06, Borislav Petkov wrote: >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.
Agree, chances of hitting the save/resume guest condition described above is low. I am okay with dropping this patch.
Thanks, Pawan
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