Re: [PATCH v3 00/15] KVM: x86: Add "governed" X86_FEATURE framework

[Sean Christopherson]

On Tue, 15 Aug 2023 13:36:38 -0700, Sean Christopherson wrote:
> Third and hopefully final version of the framework to manage and cache
> KVM-governed features, i.e. CPUID based features that require explicit
> KVM enabling and/or need to be queried semi-frequently by KVM.
> 
> This version is just the governed features patches, as I kept the TSC
> scaling patches in kvm-x86/misc but blasted away the goverend features
> with a forced push.
> 
> [...]

Applied to kvm-x86 misc, with a blurb added to the nVMX changelog to explain
how "nested" is factored in.

[01/15] KVM: x86: Add a framework for enabling KVM-governed x86 features
        https://github.com/kvm-x86/linux/commit/42764413d195
[02/15] KVM: x86/mmu: Use KVM-governed feature framework to track "GBPAGES enabled"
        https://github.com/kvm-x86/linux/commit/ccf31d6e6cc5
[03/15] KVM: VMX: Recompute "XSAVES enabled" only after CPUID update
        https://github.com/kvm-x86/linux/commit/1143c0b85c07
[04/15] KVM: VMX: Check KVM CPU caps, not just VMX MSR support, for XSAVE enabling
        https://github.com/kvm-x86/linux/commit/0497d2ac9b26
[05/15] KVM: VMX: Rename XSAVES control to follow KVM's preferred "ENABLE_XYZ"
        https://github.com/kvm-x86/linux/commit/662f6815786e
[06/15] KVM: x86: Use KVM-governed feature framework to track "XSAVES enabled"
        https://github.com/kvm-x86/linux/commit/fe60e8f65f79
[07/15] KVM: nVMX: Use KVM-governed feature framework to track "nested VMX enabled"
        https://github.com/kvm-x86/linux/commit/1c18efdaa314
[08/15] KVM: nSVM: Use KVM-governed feature framework to track "NRIPS enabled"
        https://github.com/kvm-x86/linux/commit/7a6a6a3bf5d8
[09/15] KVM: nSVM: Use KVM-governed feature framework to track "TSC scaling enabled"
        https://github.com/kvm-x86/linux/commit/4365a45571c7
[10/15] KVM: nSVM: Use KVM-governed feature framework to track "vVM{SAVE,LOAD} enabled"
        https://github.com/kvm-x86/linux/commit/4d2a1560ffc2
[11/15] KVM: nSVM: Use KVM-governed feature framework to track "LBRv enabled"
        https://github.com/kvm-x86/linux/commit/e183d17ac362
[12/15] KVM: nSVM: Use KVM-governed feature framework to track "Pause Filter enabled"
        https://github.com/kvm-x86/linux/commit/59d67fc1f0db
[13/15] KVM: nSVM: Use KVM-governed feature framework to track "vGIF enabled"
        https://github.com/kvm-x86/linux/commit/b89456aee78d
[14/15] KVM: nSVM: Use KVM-governed feature framework to track "vNMI enabled"
        https://github.com/kvm-x86/linux/commit/ee785c870d6f
[15/15] KVM: x86: Disallow guest CPUID lookups when IRQs are disabled
        https://github.com/kvm-x86/linux/commit/9717efbe5ba3

--
https://github.com/kvm-x86/linux/tree/next
https://github.com/kvm-x86/linux/tree/fixes