41 void kvm_s390_rewind_psw(struct kvm_vcpu *vcpu, int ilc)  in kvm_s390_rewind_psw()  argument
43 	struct kvm_s390_sie_block *sie_block = vcpu->arch.sie_block;  in kvm_s390_rewind_psw()
54 static int handle_noop(struct kvm_vcpu *vcpu)  in handle_noop()  argument
56 	switch (vcpu->arch.sie_block->icptcode) {  in handle_noop()
58 		vcpu->stat.exit_null++;  in handle_noop()
61 		vcpu->stat.exit_external_request++;  in handle_noop()
69 static int handle_stop(struct kvm_vcpu *vcpu)  in handle_stop()  argument
71 	struct kvm_s390_local_interrupt *li = &vcpu->arch.local_int;  in handle_stop()
75 	vcpu->stat.exit_stop_request++;  in handle_stop()
78 	if (kvm_s390_vcpu_has_irq(vcpu, 1))  in handle_stop()
84 	stop_pending = kvm_s390_is_stop_irq_pending(vcpu);  in handle_stop()
92 		rc = kvm_s390_vcpu_store_status(vcpu,  in handle_stop()
98 	if (!kvm_s390_user_cpu_state_ctrl(vcpu->kvm))  in handle_stop()
99 		kvm_s390_vcpu_stop(vcpu);  in handle_stop()
103 static int handle_validity(struct kvm_vcpu *vcpu)  in handle_validity()  argument
105 	int viwhy = vcpu->arch.sie_block->ipb >> 16;  in handle_validity()
107 	vcpu->stat.exit_validity++;  in handle_validity()
108 	trace_kvm_s390_intercept_validity(vcpu, viwhy);  in handle_validity()
113 static int handle_instruction(struct kvm_vcpu *vcpu)  in handle_instruction()  argument
117 	vcpu->stat.exit_instruction++;  in handle_instruction()
118 	trace_kvm_s390_intercept_instruction(vcpu,  in handle_instruction()
119 					     vcpu->arch.sie_block->ipa,  in handle_instruction()
120 					     vcpu->arch.sie_block->ipb);  in handle_instruction()
121 	handler = instruction_handlers[vcpu->arch.sie_block->ipa >> 8];  in handle_instruction()
123 		return handler(vcpu);  in handle_instruction()
127 static void __extract_prog_irq(struct kvm_vcpu *vcpu,  in __extract_prog_irq()  argument
131 	pgm_info->code = vcpu->arch.sie_block->iprcc;  in __extract_prog_irq()
133 	switch (vcpu->arch.sie_block->iprcc & ~PGM_PER) {  in __extract_prog_irq()
144 		pgm_info->trans_exc_code = vcpu->arch.sie_block->tecmc;  in __extract_prog_irq()
152 		pgm_info->exc_access_id = vcpu->arch.sie_block->eai;  in __extract_prog_irq()
160 		pgm_info->trans_exc_code = vcpu->arch.sie_block->tecmc;  in __extract_prog_irq()
161 		pgm_info->exc_access_id  = vcpu->arch.sie_block->eai;  in __extract_prog_irq()
162 		pgm_info->op_access_id  = vcpu->arch.sie_block->oai;  in __extract_prog_irq()
165 		pgm_info->mon_class_nr = vcpu->arch.sie_block->mcn;  in __extract_prog_irq()
166 		pgm_info->mon_code = vcpu->arch.sie_block->tecmc;  in __extract_prog_irq()
170 		pgm_info->data_exc_code = vcpu->arch.sie_block->dxc;  in __extract_prog_irq()
173 		pgm_info->trans_exc_code = vcpu->arch.sie_block->tecmc;  in __extract_prog_irq()
174 		pgm_info->exc_access_id  = vcpu->arch.sie_block->eai;  in __extract_prog_irq()
180 	if (vcpu->arch.sie_block->iprcc & PGM_PER) {  in __extract_prog_irq()
181 		pgm_info->per_code = vcpu->arch.sie_block->perc;  in __extract_prog_irq()
182 		pgm_info->per_atmid = vcpu->arch.sie_block->peratmid;  in __extract_prog_irq()
183 		pgm_info->per_address = vcpu->arch.sie_block->peraddr;  in __extract_prog_irq()
184 		pgm_info->per_access_id = vcpu->arch.sie_block->peraid;  in __extract_prog_irq()
192 static int handle_itdb(struct kvm_vcpu *vcpu)  in handle_itdb()  argument
197 	if (!IS_TE_ENABLED(vcpu) || !IS_ITDB_VALID(vcpu))  in handle_itdb()
201 	itdb = (struct kvm_s390_itdb *)vcpu->arch.sie_block->itdba;  in handle_itdb()
202 	rc = write_guest_lc(vcpu, __LC_PGM_TDB, itdb, sizeof(*itdb));  in handle_itdb()
210 #define per_event(vcpu) (vcpu->arch.sie_block->iprcc & PGM_PER)  argument
212 static int handle_prog(struct kvm_vcpu *vcpu)  in handle_prog()  argument
218 	vcpu->stat.exit_program_interruption++;  in handle_prog()
220 	if (guestdbg_enabled(vcpu) && per_event(vcpu)) {  in handle_prog()
221 		kvm_s390_handle_per_event(vcpu);  in handle_prog()
223 		if (vcpu->arch.sie_block->iprcc == 0)  in handle_prog()
227 	trace_kvm_s390_intercept_prog(vcpu, vcpu->arch.sie_block->iprcc);  in handle_prog()
228 	if (vcpu->arch.sie_block->iprcc == PGM_SPECIFICATION) {  in handle_prog()
229 		rc = read_guest_lc(vcpu, __LC_PGM_NEW_PSW, &psw, sizeof(psw_t));  in handle_prog()
236 	rc = handle_itdb(vcpu);  in handle_prog()
240 	__extract_prog_irq(vcpu, &pgm_info);  in handle_prog()
241 	return kvm_s390_inject_prog_irq(vcpu, &pgm_info);  in handle_prog()
252 static int handle_external_interrupt(struct kvm_vcpu *vcpu)  in handle_external_interrupt()  argument
254 	u16 eic = vcpu->arch.sie_block->eic;  in handle_external_interrupt()
259 	vcpu->stat.exit_external_interrupt++;  in handle_external_interrupt()
261 	rc = read_guest_lc(vcpu, __LC_EXT_NEW_PSW, &newpsw, sizeof(psw_t));  in handle_external_interrupt()
278 		irq.u.extcall.code = vcpu->arch.sie_block->extcpuaddr;  in handle_external_interrupt()
279 		rc = kvm_s390_inject_vcpu(vcpu, &irq);  in handle_external_interrupt()
288 	return kvm_s390_inject_vcpu(vcpu, &irq);  in handle_external_interrupt()
299 static int handle_mvpg_pei(struct kvm_vcpu *vcpu)  in handle_mvpg_pei()  argument
304 	kvm_s390_get_regs_rre(vcpu, &reg1, &reg2);  in handle_mvpg_pei()
307 	rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg2],  in handle_mvpg_pei()
310 		return kvm_s390_inject_prog_cond(vcpu, rc);  in handle_mvpg_pei()
311 	rc = kvm_arch_fault_in_page(vcpu, srcaddr, 0);  in handle_mvpg_pei()
316 	rc = guest_translate_address(vcpu, vcpu->run->s.regs.gprs[reg1],  in handle_mvpg_pei()
319 		return kvm_s390_inject_prog_cond(vcpu, rc);  in handle_mvpg_pei()
320 	rc = kvm_arch_fault_in_page(vcpu, dstaddr, 1);  in handle_mvpg_pei()
324 	kvm_s390_rewind_psw(vcpu, 4);  in handle_mvpg_pei()
329 static int handle_partial_execution(struct kvm_vcpu *vcpu)  in handle_partial_execution()  argument
331 	if (vcpu->arch.sie_block->ipa == 0xb254)	/* MVPG */  in handle_partial_execution()
332 		return handle_mvpg_pei(vcpu);  in handle_partial_execution()
333 	if (vcpu->arch.sie_block->ipa >> 8 == 0xae)	/* SIGP */  in handle_partial_execution()
334 		return kvm_s390_handle_sigp_pei(vcpu);  in handle_partial_execution()
339 int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu)  in kvm_handle_sie_intercept()  argument
341 	switch (vcpu->arch.sie_block->icptcode) {  in kvm_handle_sie_intercept()
345 		return handle_noop(vcpu);  in kvm_handle_sie_intercept()
347 		return handle_instruction(vcpu);  in kvm_handle_sie_intercept()
349 		return handle_prog(vcpu);  in kvm_handle_sie_intercept()
351 		return handle_external_interrupt(vcpu);  in kvm_handle_sie_intercept()
353 		return kvm_s390_handle_wait(vcpu);  in kvm_handle_sie_intercept()
355 		return handle_validity(vcpu);  in kvm_handle_sie_intercept()
357 		return handle_stop(vcpu);  in kvm_handle_sie_intercept()
359 		return handle_partial_execution(vcpu);  in kvm_handle_sie_intercept()