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KVM: x86/mmu: Drop redundant rsvd bits reset for nested NPT 

Drop the extra reset of shadow_zero_bits in the nested NPT flow now
that shadow_mmu_init_context computes the correct level for nested NPT.

No functional change intended.

Signed-off-by: Sean Christopherson <seanjc@google.com>
Message-Id: <20210622175739.3610207-52-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
This commit is contained in:
Sean Christopherson 2021-06-22 10:57:36 -07:00 committed by Paolo Bonzini
parent 7cd138db5c
commit f82fdaf536
1 changed files with 0 additions and 6 deletions
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6
arch/x86/kvm/mmu/mmu.c
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@ -4693,12 +4693,6 @@ void kvm_init_shadow_npt_mmu(struct kvm_vcpu *vcpu, unsigned long cr0,
__kvm_mmu_new_pgd(vcpu, nested_cr3, new_role.base);
shadow_mmu_init_context(vcpu, context, &regs, new_role);
/*
* Redo the shadow bits, the reset done by shadow_mmu_init_context()
* (above) may use the wrong shadow_root_level.
*/
reset_shadow_zero_bits_mask(vcpu, context);
}
EXPORT_SYMBOL_GPL(kvm_init_shadow_npt_mmu);