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| author | Sean Christopherson <seanjc@google.com> | 2021-02-13 03:50:04 +0300 |
|---|---|---|
| committer | Paolo Bonzini <pbonzini@redhat.com> | 2021-02-19 11:08:11 +0300 |
| commit | 1b6d9d9ed5717157933db77d96bb12884c17ce52 (patch) | |
| tree | 823839c2cad23e0ed51db9ad41fdd3eb4e335f4c /arch/x86/kvm/mmu/mmu_internal.h | |
| parent | c060c72ffeb448fbb5864faa1f672ebfe14dd25f (diff) | |
| download | linux-1b6d9d9ed5717157933db77d96bb12884c17ce52.tar.xz | |
KVM: x86/mmu: Split out max mapping level calculation to helper
Factor out the logic for determining the maximum mapping level given a
memslot and a gpa. The helper will be used when zapping collapsible
SPTEs when disabling dirty logging, e.g. to avoid zapping SPTEs that
can't possibly be rebuilt as hugepages.
No functional change intended.
Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210213005015.1651772-4-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
Diffstat (limited to 'arch/x86/kvm/mmu/mmu_internal.h')
| -rw-r--r-- | arch/x86/kvm/mmu/mmu_internal.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/kvm/mmu/mmu_internal.h b/arch/x86/kvm/mmu/mmu_internal.h index 9e38d3c5daad..0b55aa561ec8 100644 --- a/arch/x86/kvm/mmu/mmu_internal.h +++ b/arch/x86/kvm/mmu/mmu_internal.h @@ -138,6 +138,8 @@ enum { #define SET_SPTE_NEED_REMOTE_TLB_FLUSH BIT(1) #define SET_SPTE_SPURIOUS BIT(2) +int kvm_mmu_max_mapping_level(struct kvm *kvm, struct kvm_memory_slot *slot, + gfn_t gfn, kvm_pfn_t pfn, int max_level); int kvm_mmu_hugepage_adjust(struct kvm_vcpu *vcpu, gfn_t gfn, int max_level, kvm_pfn_t *pfnp, bool huge_page_disallowed, int *req_level); |