The initialization function in mmu.c can always use walk_mmu, which is known to be vcpu->arch.mmu. Only init_kvm_nested_mmu is used to initialize vcpu->arch.nested_mmu.
Signed-off-by: Paolo Bonzini <[email protected]> --- arch/x86/kvm/mmu.c | 15 +++++++++------ arch/x86/kvm/mmu.h | 5 ++--- arch/x86/kvm/svm.c | 4 ++-- arch/x86/kvm/vmx.c | 4 ++-- 4 files changed, 15 insertions(+), 13 deletions(-) diff --git a/arch/x86/kvm/mmu.c b/arch/x86/kvm/mmu.c index 40772ef..ac598c8 100644 --- a/arch/x86/kvm/mmu.c +++ b/arch/x86/kvm/mmu.c @@ -3742,11 +3742,13 @@ static void init_kvm_tdp_mmu(struct kvm_vcpu *vcpu) update_last_pte_bitmap(vcpu, context); } -void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context) +void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu) { bool smep = kvm_read_cr4_bits(vcpu, X86_CR4_SMEP); + struct kvm_mmu *context = vcpu->arch.walk_mmu; + ASSERT(vcpu); - ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa)); + ASSERT(!VALID_PAGE(context->root_hpa)); if (!is_paging(vcpu)) nonpaging_init_context(vcpu, context); @@ -3765,11 +3767,12 @@ void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context) } EXPORT_SYMBOL_GPL(kvm_init_shadow_mmu); -void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context, - bool execonly) +void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly) { + struct kvm_mmu *context = vcpu->arch.walk_mmu; + ASSERT(vcpu); - ASSERT(!VALID_PAGE(vcpu->arch.mmu.root_hpa)); + ASSERT(!VALID_PAGE(context->root_hpa)); context->shadow_root_level = kvm_x86_ops->get_tdp_level(); @@ -3790,7 +3793,7 @@ EXPORT_SYMBOL_GPL(kvm_init_shadow_ept_mmu); static void init_kvm_softmmu(struct kvm_vcpu *vcpu) { - kvm_init_shadow_mmu(vcpu, vcpu->arch.walk_mmu); + kvm_init_shadow_mmu(vcpu); vcpu->arch.walk_mmu->set_cr3 = kvm_x86_ops->set_cr3; vcpu->arch.walk_mmu->get_cr3 = get_cr3; vcpu->arch.walk_mmu->get_pdptr = kvm_pdptr_read; diff --git a/arch/x86/kvm/mmu.h b/arch/x86/kvm/mmu.h index 2926152..c9d3d8f 100644 --- a/arch/x86/kvm/mmu.h +++ b/arch/x86/kvm/mmu.h @@ -70,9 +70,8 @@ enum { }; int handle_mmio_page_fault_common(struct kvm_vcpu *vcpu, u64 addr, bool direct); -void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context); -void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, struct kvm_mmu *context, - bool execonly); +void kvm_init_shadow_mmu(struct kvm_vcpu *vcpu); +void kvm_init_shadow_ept_mmu(struct kvm_vcpu *vcpu, bool execonly); static inline unsigned int kvm_mmu_available_pages(struct kvm *kvm) { diff --git a/arch/x86/kvm/svm.c b/arch/x86/kvm/svm.c index c7168a5..37bcd6b 100644 --- a/arch/x86/kvm/svm.c +++ b/arch/x86/kvm/svm.c @@ -1961,8 +1961,8 @@ static void nested_svm_inject_npf_exit(struct kvm_vcpu *vcpu, static void nested_svm_init_mmu_context(struct kvm_vcpu *vcpu) { - kvm_init_shadow_mmu(vcpu, &vcpu->arch.mmu); - + WARN_ON(mmu_is_nested(vcpu)); + kvm_init_shadow_mmu(vcpu); vcpu->arch.mmu.set_cr3 = nested_svm_set_tdp_cr3; vcpu->arch.mmu.get_cr3 = nested_svm_get_tdp_cr3; vcpu->arch.mmu.get_pdptr = nested_svm_get_tdp_pdptr; diff --git a/arch/x86/kvm/vmx.c b/arch/x86/kvm/vmx.c index 2db9164..fdd1cb8 100644 --- a/arch/x86/kvm/vmx.c +++ b/arch/x86/kvm/vmx.c @@ -7501,9 +7501,9 @@ static unsigned long nested_ept_get_cr3(struct kvm_vcpu *vcpu) static void nested_ept_init_mmu_context(struct kvm_vcpu *vcpu) { - kvm_init_shadow_ept_mmu(vcpu, &vcpu->arch.mmu, + WARN_ON(mmu_is_nested(vcpu)); + kvm_init_shadow_ept_mmu(vcpu, nested_vmx_ept_caps & VMX_EPT_EXECUTE_ONLY_BIT); - vcpu->arch.mmu.set_cr3 = vmx_set_cr3; vcpu->arch.mmu.get_cr3 = nested_ept_get_cr3; vcpu->arch.mmu.inject_page_fault = nested_ept_inject_page_fault; -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [email protected] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
