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[51/54] KVM: x86/mmu: Drop redundant rsvd bits reset for nested NPT

Message ID 20210622175739.3610207-52-seanjc@google.com (mailing list archive)
State New, archived
Headers show
Series KVM: x86/mmu: Bug fixes and summer cleaning | expand

Commit Message

Sean Christopherson June 22, 2021, 5:57 p.m. UTC
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>
 arch/x86/kvm/mmu/mmu.c | 6 ------
 1 file changed, 6 deletions(-)
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diff --git a/arch/x86/kvm/mmu/mmu.c b/arch/x86/kvm/mmu/mmu.c
index 7849f53fd874..d4969ac98a4b 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);