Patch 6 from Mingwei is the end goal of the series. KVM incorrectly assumes that the NX huge page mitigation is the only scenario where KVM will create a non-leaf page instead of a huge page. Precisely track (via kvm_mmu_page) if a non-huge page is being forced and use that info to avoid unnecessarily forcing smaller page sizes in disallowed_hugepage_adjust(). v2: Rebase, tweak a changelog accordingly. v1: https://lore.kernel.org/all/20220409003847.819686-1-seanjc@xxxxxxxxxx Mingwei Zhang (1): KVM: x86/mmu: explicitly check nx_hugepage in disallowed_hugepage_adjust() Sean Christopherson (5): KVM: x86/mmu: Tag disallowed NX huge pages even if they're not tracked KVM: x86/mmu: Properly account NX huge page workaround for nonpaging MMUs KVM: x86/mmu: Set disallowed_nx_huge_page in TDP MMU before setting SPTE KVM: x86/mmu: Track the number of TDP MMU pages, but not the actual pages KVM: x86/mmu: Add helper to convert SPTE value to its shadow page arch/x86/include/asm/kvm_host.h | 17 ++--- arch/x86/kvm/mmu/mmu.c | 107 ++++++++++++++++++++++---------- arch/x86/kvm/mmu/mmu_internal.h | 41 +++++++----- arch/x86/kvm/mmu/paging_tmpl.h | 6 +- arch/x86/kvm/mmu/spte.c | 11 ++++ arch/x86/kvm/mmu/spte.h | 17 +++++ arch/x86/kvm/mmu/tdp_mmu.c | 49 +++++++++------ arch/x86/kvm/mmu/tdp_mmu.h | 2 + 8 files changed, 167 insertions(+), 83 deletions(-) base-commit: 1a4d88a361af4f2e91861d632c6a1fe87a9665c2 -- 2.37.1.359.gd136c6c3e2-goog
