KVM: x86/mmu: Split out max mapping level calculation to helper

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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>

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Sean Christopherson 2021-02-12 16:50:04 -08:00 • committed by Paolo Bonzini

parent c060c72ffe

commit 1b6d9d9ed5

2 changed files with 24 additions and 15 deletions

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37

arch/x86/kvm/mmu/mmu.c

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2

arch/x86/kvm/mmu/mmu_internal.h

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