19 static void kvm_rtas_set_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_set_xive()  argument
24 	if (be32_to_cpu(args->nargs) != 3 || be32_to_cpu(args->nret) != 1) {  in kvm_rtas_set_xive()
29 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_set_xive()
30 	server = be32_to_cpu(args->args[1]);  in kvm_rtas_set_xive()
31 	priority = be32_to_cpu(args->args[2]);  in kvm_rtas_set_xive()
40 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_set_xive()
43 static void kvm_rtas_get_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_get_xive()  argument
48 	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 3) {  in kvm_rtas_get_xive()
53 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_get_xive()
65 	args->rets[1] = cpu_to_be32(server);  in kvm_rtas_get_xive()
66 	args->rets[2] = cpu_to_be32(priority);  in kvm_rtas_get_xive()
68 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_get_xive()
71 static void kvm_rtas_int_off(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_int_off()  argument
76 	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 1) {  in kvm_rtas_int_off()
81 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_int_off()
90 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_int_off()
93 static void kvm_rtas_int_on(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_int_on()  argument
98 	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 1) {  in kvm_rtas_int_on()
103 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_int_on()
112 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_int_on()
117 	void (*handler)(struct kvm_vcpu *vcpu, struct rtas_args *args);
138 	struct kvm_rtas_token_args args;  in rtas_name_matches()  local
139 	return !strncmp(s1, s2, sizeof(args.name));  in rtas_name_matches()
200 	struct kvm_rtas_token_args args;  in kvm_vm_ioctl_rtas_define_token()  local
203 	if (copy_from_user(&args, argp, sizeof(args)))  in kvm_vm_ioctl_rtas_define_token()
208 	if (args.token)  in kvm_vm_ioctl_rtas_define_token()
209 		rc = rtas_token_define(kvm, args.name, args.token);  in kvm_vm_ioctl_rtas_define_token()
211 		rc = rtas_token_undefine(kvm, args.name);  in kvm_vm_ioctl_rtas_define_token()
221 	struct rtas_args args;  in kvmppc_rtas_hcall()  local
227 	 * r4 contains the guest physical address of the RTAS args  in kvmppc_rtas_hcall()
233 	rc = kvm_read_guest(vcpu->kvm, args_phys, &args, sizeof(args));  in kvmppc_rtas_hcall()
239 	 * args->rets is a pointer into args->args. Now that we've  in kvmppc_rtas_hcall()
240 	 * copied args we need to fix it up to point into our copy,  in kvmppc_rtas_hcall()
241 	 * not the guest args. We also need to save the original  in kvmppc_rtas_hcall()
244 	orig_rets = args.rets;  in kvmppc_rtas_hcall()
245 	if (be32_to_cpu(args.nargs) >= ARRAY_SIZE(args.args)) {  in kvmppc_rtas_hcall()
247 		 * Don't overflow our args array: ensure there is room for  in kvmppc_rtas_hcall()
256 	args.rets = &args.args[be32_to_cpu(args.nargs)];  in kvmppc_rtas_hcall()
262 		if (d->token == be32_to_cpu(args.token)) {  in kvmppc_rtas_hcall()
263 			d->handler->handler(vcpu, &args);  in kvmppc_rtas_hcall()
272 		args.rets = orig_rets;  in kvmppc_rtas_hcall()
273 		rc = kvm_write_guest(vcpu->kvm, args_phys, &args, sizeof(args));  in kvmppc_rtas_hcall()
283 	 * args pointer or nargs/nret values that would overflow the  in kvmppc_rtas_hcall()
284 	 * array. That means we can't get to the args, and so we can't  in kvmppc_rtas_hcall()