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authorSean Christopherson <seanjc@google.com>2021-06-22 20:57:36 +0300
committerPaolo Bonzini <pbonzini@redhat.com>2021-06-25 01:00:47 +0300
commitf82fdaf536ee6de36e3a7b4764f17b81afb8ef93 (patch)
tree226adbffe03eee3d46c47e366f2d27b8b91b767e
parent7cd138db5cae0dac295714b4412a9b44fb4f4e65 (diff)
downloadlinux-f82fdaf536ee6de36e3a7b4764f17b81afb8ef93.tar.xz
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>
-rw-r--r--arch/x86/kvm/mmu/mmu.c6
1 files changed, 0 insertions, 6 deletions
diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 417f81c004da..690f560341a2 100644
--- a/arch/x86/kvm/mmu/mmu.c
+++ b/arch/x86/kvm/mmu/mmu.c
@@ -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);