20 void __noreturn __host_enter(struct kvm_cpu_context *host_ctxt);
72 static unsigned long psci_forward(struct kvm_cpu_context *host_ctxt)  in psci_forward()  argument
74 	return psci_call(cpu_reg(host_ctxt, 0), cpu_reg(host_ctxt, 1),  in psci_forward()
75 			 cpu_reg(host_ctxt, 2), cpu_reg(host_ctxt, 3));  in psci_forward()
107 static int psci_cpu_on(u64 func_id, struct kvm_cpu_context *host_ctxt)  in psci_cpu_on()  argument
109 	DECLARE_REG(u64, mpidr, host_ctxt, 1);  in psci_cpu_on()
110 	DECLARE_REG(unsigned long, pc, host_ctxt, 2);  in psci_cpu_on()
111 	DECLARE_REG(unsigned long, r0, host_ctxt, 3);  in psci_cpu_on()
151 static int psci_cpu_suspend(u64 func_id, struct kvm_cpu_context *host_ctxt)  in psci_cpu_suspend()  argument
153 	DECLARE_REG(u64, power_state, host_ctxt, 1);  in psci_cpu_suspend()
154 	DECLARE_REG(unsigned long, pc, host_ctxt, 2);  in psci_cpu_suspend()
155 	DECLARE_REG(unsigned long, r0, host_ctxt, 3);  in psci_cpu_suspend()
179 static int psci_system_suspend(u64 func_id, struct kvm_cpu_context *host_ctxt)  in psci_system_suspend()  argument
181 	DECLARE_REG(unsigned long, pc, host_ctxt, 1);  in psci_system_suspend()
182 	DECLARE_REG(unsigned long, r0, host_ctxt, 2);  in psci_system_suspend()
206 	struct kvm_cpu_context *host_ctxt;  in kvm_host_psci_cpu_entry()  local
208 	host_ctxt = &this_cpu_ptr(&kvm_host_data)->host_ctxt;  in kvm_host_psci_cpu_entry()
215 	cpu_reg(host_ctxt, 0) = boot_args->r0;  in kvm_host_psci_cpu_entry()
221 	__host_enter(host_ctxt);  in kvm_host_psci_cpu_entry()
224 static unsigned long psci_0_1_handler(u64 func_id, struct kvm_cpu_context *host_ctxt)  in psci_0_1_handler()  argument
227 		return psci_forward(host_ctxt);  in psci_0_1_handler()
229 		return psci_cpu_on(func_id, host_ctxt);  in psci_0_1_handler()
231 		return psci_cpu_suspend(func_id, host_ctxt);  in psci_0_1_handler()
236 static unsigned long psci_0_2_handler(u64 func_id, struct kvm_cpu_context *host_ctxt)  in psci_0_2_handler()  argument
245 		return psci_forward(host_ctxt);  in psci_0_2_handler()
252 		return psci_forward(host_ctxt);  in psci_0_2_handler()
254 		return psci_cpu_suspend(func_id, host_ctxt);  in psci_0_2_handler()
256 		return psci_cpu_on(func_id, host_ctxt);  in psci_0_2_handler()
262 static unsigned long psci_1_0_handler(u64 func_id, struct kvm_cpu_context *host_ctxt)  in psci_1_0_handler()  argument
268 		return psci_forward(host_ctxt);  in psci_1_0_handler()
270 		return psci_system_suspend(func_id, host_ctxt);  in psci_1_0_handler()
272 		return psci_0_2_handler(func_id, host_ctxt);  in psci_1_0_handler()
276 bool kvm_host_psci_handler(struct kvm_cpu_context *host_ctxt)  in kvm_host_psci_handler()  argument
278 	DECLARE_REG(u64, func_id, host_ctxt, 0);  in kvm_host_psci_handler()
285 		ret = psci_0_1_handler(func_id, host_ctxt);  in kvm_host_psci_handler()
290 		ret = psci_0_2_handler(func_id, host_ctxt);  in kvm_host_psci_handler()
295 		ret = psci_1_0_handler(func_id, host_ctxt);  in kvm_host_psci_handler()
299 	cpu_reg(host_ctxt, 0) = ret;  in kvm_host_psci_handler()
300 	cpu_reg(host_ctxt, 1) = 0;  in kvm_host_psci_handler()
301 	cpu_reg(host_ctxt, 2) = 0;  in kvm_host_psci_handler()
302 	cpu_reg(host_ctxt, 3) = 0;  in kvm_host_psci_handler()