APPLIED: [PATCH 0/1][kinetic/linux-azure] Azure: Performance improvement for TDX

[Tim Gardner]

On 1/28/23 3:50 PM, Tim Gardner wrote:
> https://bugs.launchpad.net/bugs/2004090
> 
> SRU Justification
> 
> [Impact]
> 
> ms_hyperv_init_platform() hides HV_MSR_REFERENCE_TSC_AVAILABLE for TDX guests in
> favor of Invariant-TSC. In this case, we should also downgrade the rating of
> hyperv_cs_msr.rating, so Invariant-TSC can be used by default.
> 
> [Fix]
> 
> https://github.com/dcui/tdx.git 367f18c06ac999c2822b0c24f50a87994635d4bd
> 
> [Where things could go wrong]
> 
> TDX guests may perform worse.
> 
Applied to kinetic/linux-azure:master-next. Thanks.

-rtg
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Tim Gardner
Canonical, Inc