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SubjectRe: [PATCH v2 1/3] KVM: x86/mmu: Remove redundant spte present check in mmu_set_spte
On Mon, Jul 26, 2021, Mingwei Zhang wrote:
> Drop an unnecessary is_shadow_present_pte() check when updating the rmaps
> after installing a non-MMIO SPTE. set_spte() is used only to create
> shadow-present SPTEs, e.g. MMIO SPTEs are handled early on, mmu_set_spte()
> runs with mmu_lock held for write, i.e. the SPTE can't be zapped between
> writing the SPTE and updating the rmaps.
> Opportunistically combine the "new SPTE" logic for large pages and rmaps.
> No functional change intended.
> Suggested-by: Ben Gardon <>
> Signed-off-by: Mingwei Zhang <>
> ---

Reviewed-by: Sean Christopherson <>

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