KVM: x86/mmu: Rename .private_max_mapping_level() to .gmem_max_mapping_level()

Rename kvm_x86_ops.private_max_mapping_level() to .gmem_max_mapping_level()
in anticipation of extending guest_memfd support to non-private memory.

No functional change intended.

Reviewed-by: Xiaoyao Li <xiaoyao.li@intel.com>
Acked-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Ackerley Tng <ackerleytng@google.com>
Signed-off-by: Fuad Tabba <tabba@google.com>
Co-developed-by: Sean Christopherson <seanjc@google.com>
Signed-off-by: Sean Christopherson <seanjc@google.com>
Reviewed-by: Fuad Tabba <tabba@google.com>
Message-ID: <20250729225455.670324-13-seanjc@google.com>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>

Author: Ackerley Tng

arch/x86/include/asm/kvm-x86-ops.h

@@ -145,7 +145,7 @@ KVM_X86_OP_OPTIONAL_RET0(vcpu_get_apicv_inhibit_reasons);
 KVM_X86_OP_OPTIONAL(get_untagged_addr)
 KVM_X86_OP_OPTIONAL(alloc_apic_backing_page)
 KVM_X86_OP_OPTIONAL_RET0(gmem_prepare)
-KVM_X86_OP_OPTIONAL_RET0(private_max_mapping_level)
+KVM_X86_OP_OPTIONAL_RET0(gmem_max_mapping_level)
 KVM_X86_OP_OPTIONAL(gmem_invalidate)
 
 #undef KVM_X86_OP

arch/x86/include/asm/kvm_host.h

@@ -1922,7 +1922,7 @@ struct kvm_x86_ops {
 	void *(*alloc_apic_backing_page)(struct kvm_vcpu *vcpu);
 	int (*gmem_prepare)(struct kvm *kvm, kvm_pfn_t pfn, gfn_t gfn, int max_order);
 	void (*gmem_invalidate)(kvm_pfn_t start, kvm_pfn_t end);
-	int (*private_max_mapping_level)(struct kvm *kvm, kvm_pfn_t pfn);
+	int (*gmem_max_mapping_level)(struct kvm *kvm, kvm_pfn_t pfn);
 };
 
 struct kvm_x86_nested_ops {

arch/x86/kvm/mmu/mmu.c

@@ -4532,7 +4532,7 @@ static u8 kvm_max_private_mapping_level(struct kvm *kvm, kvm_pfn_t pfn,
 	if (max_level == PG_LEVEL_4K)
 		return PG_LEVEL_4K;
 
-	req_max_level = kvm_x86_call(private_max_mapping_level)(kvm, pfn);
+	req_max_level = kvm_x86_call(gmem_max_mapping_level)(kvm, pfn);
 	if (req_max_level)
 		max_level = min(max_level, req_max_level);
 

arch/x86/kvm/svm/sev.c

@@ -4943,7 +4943,7 @@ void sev_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end)
 	}
 }
 
-int sev_private_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
+int sev_gmem_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
 {
 	int level, rc;
 	bool assigned;

arch/x86/kvm/svm/svm.c

@@ -5180,7 +5180,7 @@ static struct kvm_x86_ops svm_x86_ops __initdata = {
 
 	.gmem_prepare = sev_gmem_prepare,
 	.gmem_invalidate = sev_gmem_invalidate,
-	.private_max_mapping_level = sev_private_max_mapping_level,
+	.gmem_max_mapping_level = sev_gmem_max_mapping_level,
 };
 
 /*

arch/x86/kvm/svm/svm.h

@@ -866,7 +866,7 @@ void sev_handle_rmp_fault(struct kvm_vcpu *vcpu, gpa_t gpa, u64 error_code);
 void sev_snp_init_protected_guest_state(struct kvm_vcpu *vcpu);
 int sev_gmem_prepare(struct kvm *kvm, kvm_pfn_t pfn, gfn_t gfn, int max_order);
 void sev_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end);
-int sev_private_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn);
+int sev_gmem_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn);
 struct vmcb_save_area *sev_decrypt_vmsa(struct kvm_vcpu *vcpu);
 void sev_free_decrypted_vmsa(struct kvm_vcpu *vcpu, struct vmcb_save_area *vmsa);
 #else
@@ -895,7 +895,7 @@ static inline int sev_gmem_prepare(struct kvm *kvm, kvm_pfn_t pfn, gfn_t gfn, in
 	return 0;
 }
 static inline void sev_gmem_invalidate(kvm_pfn_t start, kvm_pfn_t end) {}
-static inline int sev_private_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
+static inline int sev_gmem_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
 {
 	return 0;
 }

arch/x86/kvm/vmx/main.c

@@ -831,10 +831,10 @@ static int vt_vcpu_mem_enc_ioctl(struct kvm_vcpu *vcpu, void __user *argp)
 	return tdx_vcpu_ioctl(vcpu, argp);
 }
 
-static int vt_gmem_private_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
+static int vt_gmem_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
 {
 	if (is_td(kvm))
-		return tdx_gmem_private_max_mapping_level(kvm, pfn);
+		return tdx_gmem_max_mapping_level(kvm, pfn);
 
 	return 0;
 }
@@ -1005,7 +1005,7 @@ struct kvm_x86_ops vt_x86_ops __initdata = {
 	.mem_enc_ioctl = vt_op_tdx_only(mem_enc_ioctl),
 	.vcpu_mem_enc_ioctl = vt_op_tdx_only(vcpu_mem_enc_ioctl),
 
-	.private_max_mapping_level = vt_op_tdx_only(gmem_private_max_mapping_level)
+	.gmem_max_mapping_level = vt_op_tdx_only(gmem_max_mapping_level)
 };
 
 struct kvm_x86_init_ops vt_init_ops __initdata = {

arch/x86/kvm/vmx/tdx.c

@@ -3318,7 +3318,7 @@ int tdx_vcpu_ioctl(struct kvm_vcpu *vcpu, void __user *argp)
 	return ret;
 }
 
-int tdx_gmem_private_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
+int tdx_gmem_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn)
 {
 	return PG_LEVEL_4K;
 }

arch/x86/kvm/vmx/x86_ops.h

@@ -153,7 +153,7 @@ int tdx_vcpu_ioctl(struct kvm_vcpu *vcpu, void __user *argp);
 void tdx_flush_tlb_current(struct kvm_vcpu *vcpu);
 void tdx_flush_tlb_all(struct kvm_vcpu *vcpu);
 void tdx_load_mmu_pgd(struct kvm_vcpu *vcpu, hpa_t root_hpa, int root_level);
-int tdx_gmem_private_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn);
+int tdx_gmem_max_mapping_level(struct kvm *kvm, kvm_pfn_t pfn);
 #endif
 
 #endif /* __KVM_X86_VMX_X86_OPS_H */