On Thu, 11 May 2023 16:33:43 -0700, Sean Christopherson wrote:
> Clean up KVM's handling of MSR PAT. The PAT is currently lumped in with
> MTRRs, and while the PAT does affect memtypes, it's not an MTRR and is
> exempted from KVM's kludgy attempts to play nice with UC memory for guests
> with passthrough devices that have non-coherent DMA (KVM does NOT set
> "ignore guest PAT" in this case, and so the guest PAT is virtualized by
> hardware, not emulated by KVM).
>
> [...]
Applied to kvm-x86 misc, thanks!
[1/8] KVM: VMX: Open code writing vCPU's PAT in VMX's MSR handler
https://github.com/kvm-x86/linux/commit/a33ba1bf0dc6
[2/8] KVM: SVM: Use kvm_pat_valid() directly instead of kvm_mtrr_valid()
https://github.com/kvm-x86/linux/commit/7aeae027611f
[3/8] KVM: x86: Add helper to query if variable MTRR MSR is base (versus mask)
https://github.com/kvm-x86/linux/commit/ebda79e50577
[4/8] KVM: x86: Add helper to get variable MTRR range from MSR index
https://github.com/kvm-x86/linux/commit/9ae38b4fb135
[5/8] KVM: x86: Use MTRR macros to define possible MTRR MSR ranges
https://github.com/kvm-x86/linux/commit/34a83deac31c
[6/8] KVM: x86: Move PAT MSR handling out of mtrr.c
https://github.com/kvm-x86/linux/commit/bc7fe2f0b751
[7/8] KVM: x86: Make kvm_mtrr_valid() static now that there are no external users
https://github.com/kvm-x86/linux/commit/3a5f49078eb5
[8/8] KVM: x86: Move common handling of PAT MSR writes to kvm_set_msr_common()
https://github.com/kvm-x86/linux/commit/dee321977a23
--
https://github.com/kvm-x86/linux/tree/next
https://github.com/kvm-x86/linux/tree/fixes
