Re: [PATCH v4 00/13] KVM: x86/mmu: Optimize clear dirty log

[Sean Christopherson]

On Tue, 21 Mar 2023 15:00:08 -0700, Sean Christopherson wrote:
> This is a massaged version of Vipin's series to optimize clearing dirty
> state in the TDP MMU.  It's basically the same as v3, just spread out over
> more patches.  The only meaningful difference in the end is that
> clear_dirty_gfn_range() also gets similar treatment in handling Dirty vs.
> Writable logic.
> 
> Vipin, I'm still planning on applying this for 6.4, but the changes ended
> up being a wee bit bigger than I'm comfortable making on the fly, thus the
> formal posting.
> 
> [...]

Applied to kvm-x86 mmu, thanks!

[01/13] KVM: x86/mmu: Add a helper function to check if an SPTE needs atomic write
        https://github.com/kvm-x86/linux/commit/41e07665f1a6
[02/13] KVM: x86/mmu: Use kvm_ad_enabled() to determine if TDP MMU SPTEs need wrprot
        https://github.com/kvm-x86/linux/commit/5982a5392663
[03/13] KVM: x86/mmu: Consolidate Dirty vs. Writable clearing logic in TDP MMU
        https://github.com/kvm-x86/linux/commit/697c89bed94e
[04/13] KVM: x86/mmu: Atomically clear SPTE dirty state in the clear-dirty-log flow
        https://github.com/kvm-x86/linux/commit/89c313f20c1e
[05/13] KVM: x86/mmu: Drop access tracking checks when clearing TDP MMU dirty bits
        https://github.com/kvm-x86/linux/commit/cf05e8c7325e
[06/13] KVM: x86/mmu: Bypass __handle_changed_spte() when clearing TDP MMU dirty bits
        https://github.com/kvm-x86/linux/commit/1e0f42985ffa
[07/13] KVM: x86/mmu: Remove "record_dirty_log" in __tdp_mmu_set_spte()
        https://github.com/kvm-x86/linux/commit/e73008705d0c
[08/13] KVM: x86/mmu: Clear only A-bit (if enabled) when aging TDP MMU SPTEs
        https://github.com/kvm-x86/linux/commit/7ee131e3a3c3
[09/13] KVM: x86/mmu: Drop unnecessary dirty log checks when aging TDP MMU SPTEs
        https://github.com/kvm-x86/linux/commit/6141df067d04
[10/13] KVM: x86/mmu: Bypass __handle_changed_spte() when aging TDP MMU SPTEs
        https://github.com/kvm-x86/linux/commit/891f11596068
[11/13] KVM: x86/mmu: Remove "record_acc_track" in __tdp_mmu_set_spte()
        https://github.com/kvm-x86/linux/commit/0b7cc2547d53
[12/13] KVM: x86/mmu: Remove handle_changed_spte_dirty_log()
        https://github.com/kvm-x86/linux/commit/1f9973456e80
[13/13] KVM: x86/mmu: Merge all handle_changed_pte*() functions
        https://github.com/kvm-x86/linux/commit/40fa907e5a69

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