22 static void kvm_rtas_set_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_set_xive()  argument
27 	if (be32_to_cpu(args->nargs) != 3 || be32_to_cpu(args->nret) != 1) {  in kvm_rtas_set_xive()
32 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_set_xive()
33 	server = be32_to_cpu(args->args[1]);  in kvm_rtas_set_xive()
34 	priority = be32_to_cpu(args->args[2]);  in kvm_rtas_set_xive()
43 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_set_xive()
46 static void kvm_rtas_get_xive(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_get_xive()  argument
51 	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 3) {  in kvm_rtas_get_xive()
56 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_get_xive()
68 	args->rets[1] = cpu_to_be32(server);  in kvm_rtas_get_xive()
69 	args->rets[2] = cpu_to_be32(priority);  in kvm_rtas_get_xive()
71 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_get_xive()
74 static void kvm_rtas_int_off(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_int_off()  argument
79 	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 1) {  in kvm_rtas_int_off()
84 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_int_off()
93 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_int_off()
96 static void kvm_rtas_int_on(struct kvm_vcpu *vcpu, struct rtas_args *args)  in kvm_rtas_int_on()  argument
101 	if (be32_to_cpu(args->nargs) != 1 || be32_to_cpu(args->nret) != 1) {  in kvm_rtas_int_on()
106 	irq = be32_to_cpu(args->args[0]);  in kvm_rtas_int_on()
115 	args->rets[0] = cpu_to_be32(rc);  in kvm_rtas_int_on()
120 	void (*handler)(struct kvm_vcpu *vcpu, struct rtas_args *args);
141 	struct kvm_rtas_token_args args;  in rtas_name_matches()  local
142 	return !strncmp(s1, s2, sizeof(args.name));  in rtas_name_matches()
203 	struct kvm_rtas_token_args args;  in kvm_vm_ioctl_rtas_define_token()  local
206 	if (copy_from_user(&args, argp, sizeof(args)))  in kvm_vm_ioctl_rtas_define_token()
211 	if (args.token)  in kvm_vm_ioctl_rtas_define_token()
212 		rc = rtas_token_define(kvm, args.name, args.token);  in kvm_vm_ioctl_rtas_define_token()
214 		rc = rtas_token_undefine(kvm, args.name);  in kvm_vm_ioctl_rtas_define_token()
224 	struct rtas_args args;  in kvmppc_rtas_hcall()  local
230 	 * r4 contains the guest physical address of the RTAS args  in kvmppc_rtas_hcall()
235 	rc = kvm_read_guest(vcpu->kvm, args_phys, &args, sizeof(args));  in kvmppc_rtas_hcall()
240 	 * args->rets is a pointer into args->args. Now that we've  in kvmppc_rtas_hcall()
241 	 * copied args we need to fix it up to point into our copy,  in kvmppc_rtas_hcall()
242 	 * not the guest args. We also need to save the original  in kvmppc_rtas_hcall()
245 	orig_rets = args.rets;  in kvmppc_rtas_hcall()
246 	if (be32_to_cpu(args.nargs) >= ARRAY_SIZE(args.args)) {  in kvmppc_rtas_hcall()
248 		 * Don't overflow our args array: ensure there is room for  in kvmppc_rtas_hcall()
257 	args.rets = &args.args[be32_to_cpu(args.nargs)];  in kvmppc_rtas_hcall()
263 		if (d->token == be32_to_cpu(args.token)) {  in kvmppc_rtas_hcall()
264 			d->handler->handler(vcpu, &args);  in kvmppc_rtas_hcall()
273 		args.rets = orig_rets;  in kvmppc_rtas_hcall()
274 		rc = kvm_write_guest(vcpu->kvm, args_phys, &args, sizeof(args));  in kvmppc_rtas_hcall()
284 	 * args pointer or nargs/nret values that would overflow the  in kvmppc_rtas_hcall()
285 	 * array. That means we can't get to the args, and so we can't  in kvmppc_rtas_hcall()