Re: [PATCH] KVM: x86/pmu: Disallow legacy LBRs if architectural LBRs are available

[Sean Christopherson]

On Sat, 28 Jan 2023 00:14:27 +0000, Sean Christopherson wrote:
> Disallow enabling LBR support if the CPU supports architectural LBRs.
> Traditional LBR support is absent on CPU models that have architectural
> LBRs, and KVM doesn't yet support arch LBRs, i.e. KVM will pass through
> non-existent MSRs if userspace enables LBRs for the guest.
> 
> 

Applied to kvm-x86 pmu, with a Fixes tag.

[1/1] KVM: x86/pmu: Disallow legacy LBRs if architectural LBRs are available
      https://github.com/kvm-x86/linux/commit/098f4c061ea1

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