forked from Minki/linux
x86/kvm/mmu.c: add kvm_mmu parameter to kvm_mmu_free_roots()
Add an option to specify which MMU root we want to free. This will be used when nested and non-nested MMUs for L1 are split. Signed-off-by: Vitaly Kuznetsov <vkuznets@redhat.com> Signed-off-by: Paolo Bonzini <pbonzini@redhat.com> Reviewed-by: Sean Christopherson <sean.j.christopherson@intel.com>
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@ -1339,7 +1339,8 @@ void __kvm_mmu_free_some_pages(struct kvm_vcpu *vcpu);
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int kvm_mmu_load(struct kvm_vcpu *vcpu);
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void kvm_mmu_unload(struct kvm_vcpu *vcpu);
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void kvm_mmu_sync_roots(struct kvm_vcpu *vcpu);
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void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, ulong roots_to_free);
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void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
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ulong roots_to_free);
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gpa_t translate_nested_gpa(struct kvm_vcpu *vcpu, gpa_t gpa, u32 access,
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struct x86_exception *exception);
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gpa_t kvm_mmu_gva_to_gpa_read(struct kvm_vcpu *vcpu, gva_t gva,
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@ -3480,11 +3480,11 @@ static void mmu_free_root_page(struct kvm *kvm, hpa_t *root_hpa,
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}
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/* roots_to_free must be some combination of the KVM_MMU_ROOT_* flags */
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void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, ulong roots_to_free)
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void kvm_mmu_free_roots(struct kvm_vcpu *vcpu, struct kvm_mmu *mmu,
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ulong roots_to_free)
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{
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int i;
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LIST_HEAD(invalid_list);
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struct kvm_mmu *mmu = vcpu->arch.mmu;
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bool free_active_root = roots_to_free & KVM_MMU_ROOT_CURRENT;
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BUILD_BUG_ON(KVM_MMU_NUM_PREV_ROOTS >= BITS_PER_LONG);
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@ -4200,7 +4200,8 @@ static void __kvm_mmu_new_cr3(struct kvm_vcpu *vcpu, gpa_t new_cr3,
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bool skip_tlb_flush)
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{
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if (!fast_cr3_switch(vcpu, new_cr3, new_role, skip_tlb_flush))
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kvm_mmu_free_roots(vcpu, KVM_MMU_ROOT_CURRENT);
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kvm_mmu_free_roots(vcpu, vcpu->arch.mmu,
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KVM_MMU_ROOT_CURRENT);
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}
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void kvm_mmu_new_cr3(struct kvm_vcpu *vcpu, gpa_t new_cr3, bool skip_tlb_flush)
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@ -4981,7 +4982,7 @@ EXPORT_SYMBOL_GPL(kvm_mmu_load);
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void kvm_mmu_unload(struct kvm_vcpu *vcpu)
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{
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kvm_mmu_free_roots(vcpu, KVM_MMU_ROOTS_ALL);
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kvm_mmu_free_roots(vcpu, vcpu->arch.mmu, KVM_MMU_ROOTS_ALL);
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WARN_ON(VALID_PAGE(vcpu->arch.mmu->root_hpa));
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}
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EXPORT_SYMBOL_GPL(kvm_mmu_unload);
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@ -9127,7 +9127,7 @@ static int handle_invpcid(struct kvm_vcpu *vcpu)
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== operand.pcid)
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roots_to_free |= KVM_MMU_ROOT_PREVIOUS(i);
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kvm_mmu_free_roots(vcpu, roots_to_free);
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kvm_mmu_free_roots(vcpu, vcpu->arch.mmu, roots_to_free);
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/*
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* If neither the current cr3 nor any of the prev_roots use the
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* given PCID, then nothing needs to be done here because a
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