Re: [PATCH v12 00/10] Introduce support for guest CET feature

Sean Christopherson
2020-06-10T16:56:38Z

On Wed, May 06, 2020 at 04:20:59PM +0800, Yang Weijiang wrote:
> Several parts in KVM have been updated to provide VM CET support, including:
> CPUID/XSAVES config, MSR pass-through, user space MSR access interface,
> vmentry/vmexit config, nested VM etc. These patches have dependency on CET
> kernel patches for xsaves support and CET definitions, e.g., MSR and related
> feature flags.

Other than the MSR and cpufeatures flags definitions, is there any direct
dependency on kernel CET support? I.e. if/when XSAVES support is merged,
is there anything beyond the architectural definitions that are required to
merge KVM CET virtualization?