Lines Matching refs:vcpu
20 static int diag_release_pages(struct kvm_vcpu *vcpu)
23 unsigned long prefix = kvm_s390_get_prefix(vcpu);
25 start = vcpu->run->s.regs.gprs[(vcpu->arch.sie_block->ipa & 0xf0) >> 4];
26 end = vcpu->run->s.regs.gprs[vcpu->arch.sie_block->ipa & 0xf] + PAGE_SIZE;
27 vcpu->stat.instruction_diagnose_10++;
31 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
33 VCPU_EVENT(vcpu, 5, "diag release pages %lX %lX", start, end);
40 gmap_discard(vcpu->arch.gmap, start, end);
48 gmap_discard(vcpu->arch.gmap, start, prefix);
50 gmap_discard(vcpu->arch.gmap, 0, PAGE_SIZE);
52 gmap_discard(vcpu->arch.gmap, PAGE_SIZE, 2 * PAGE_SIZE);
53 gmap_discard(vcpu->arch.gmap, prefix + 2 * PAGE_SIZE, end);
58 static int __diag_page_ref_service(struct kvm_vcpu *vcpu)
72 u16 rx = (vcpu->arch.sie_block->ipa & 0xf0) >> 4;
73 u16 ry = (vcpu->arch.sie_block->ipa & 0x0f);
75 VCPU_EVENT(vcpu, 3, "diag page reference parameter block at 0x%llx",
76 vcpu->run->s.regs.gprs[rx]);
77 vcpu->stat.instruction_diagnose_258++;
78 if (vcpu->run->s.regs.gprs[rx] & 7)
79 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
80 rc = read_guest(vcpu, vcpu->run->s.regs.gprs[rx], rx, &parm, sizeof(parm));
82 return kvm_s390_inject_prog_cond(vcpu, rc);
84 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
88 VCPU_EVENT(vcpu, 3, "pageref token addr 0x%llx "
91 if (vcpu->arch.pfault_token != KVM_S390_PFAULT_TOKEN_INVALID) {
97 vcpu->run->s.regs.gprs[ry] = 8;
103 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
105 if (kvm_is_error_gpa(vcpu->kvm, parm.token_addr))
106 return kvm_s390_inject_program_int(vcpu, PGM_ADDRESSING);
108 vcpu->arch.pfault_token = parm.token_addr;
109 vcpu->arch.pfault_select = parm.select_mask;
110 vcpu->arch.pfault_compare = parm.compare_mask;
111 vcpu->run->s.regs.gprs[ry] = 0;
120 VCPU_EVENT(vcpu, 3, "pageref cancel addr 0x%llx", parm.token_addr);
123 return kvm_s390_inject_program_int(vcpu, PGM_SPECIFICATION);
125 vcpu->run->s.regs.gprs[ry] = 0;
130 if (vcpu->arch.pfault_token == KVM_S390_PFAULT_TOKEN_INVALID)
131 vcpu->run->s.regs.gprs[ry] = 4;
133 vcpu->arch.pfault_token = KVM_S390_PFAULT_TOKEN_INVALID;
145 static int __diag_time_slice_end(struct kvm_vcpu *vcpu)
147 VCPU_EVENT(vcpu, 5, "%s", "diag time slice end");
148 vcpu->stat.instruction_diagnose_44++;
149 kvm_vcpu_on_spin(vcpu, true);
166 static int __diag_time_slice_end_directed(struct kvm_vcpu *vcpu)
172 tid = vcpu->run->s.regs.gprs[(vcpu->arch.sie_block->ipa & 0xf0) >> 4];
173 vcpu->stat.instruction_diagnose_9c++;
176 if (tid == vcpu->vcpu_id)
180 tcpu = kvm_get_vcpu_by_id(vcpu->kvm, tid);
194 VCPU_EVENT(vcpu, 5,
197 vcpu->stat.diag_9c_forward++;
204 VCPU_EVENT(vcpu, 5, "diag time slice end directed to %d: done", tid);
207 VCPU_EVENT(vcpu, 5, "diag time slice end directed to %d: ignored", tid);
208 vcpu->stat.diag_9c_ignored++;
212 static int __diag_ipl_functions(struct kvm_vcpu *vcpu)
214 unsigned int reg = vcpu->arch.sie_block->ipa & 0xf;
215 unsigned long subcode = vcpu->run->s.regs.gprs[reg] & 0xffff;
217 VCPU_EVENT(vcpu, 3, "diag ipl functions, subcode %lx", subcode);
218 vcpu->stat.instruction_diagnose_308++;
221 vcpu->run->s390_reset_flags = KVM_S390_RESET_CLEAR;
224 vcpu->run->s390_reset_flags = 0;
234 if (!kvm_s390_user_cpu_state_ctrl(vcpu->kvm))
235 kvm_s390_vcpu_stop(vcpu);
236 vcpu->run->s390_reset_flags |= KVM_S390_RESET_SUBSYSTEM;
237 vcpu->run->s390_reset_flags |= KVM_S390_RESET_IPL;
238 vcpu->run->s390_reset_flags |= KVM_S390_RESET_CPU_INIT;
239 vcpu->run->exit_reason = KVM_EXIT_S390_RESET;
240 VCPU_EVENT(vcpu, 3, "requesting userspace resets %llx",
241 vcpu->run->s390_reset_flags);
242 trace_kvm_s390_request_resets(vcpu->run->s390_reset_flags);
246 static int __diag_virtio_hypercall(struct kvm_vcpu *vcpu)
250 vcpu->stat.instruction_diagnose_500++;
252 if (!vcpu->kvm->arch.css_support ||
253 (vcpu->run->s.regs.gprs[1] != KVM_S390_VIRTIO_CCW_NOTIFY))
256 VCPU_EVENT(vcpu, 4, "diag 0x500 schid 0x%8.8x queue 0x%x cookie 0x%llx",
257 (u32) vcpu->run->s.regs.gprs[2],
258 (u32) vcpu->run->s.regs.gprs[3],
259 vcpu->run->s.regs.gprs[4]);
267 ret = kvm_io_bus_write_cookie(vcpu, KVM_VIRTIO_CCW_NOTIFY_BUS,
268 vcpu->run->s.regs.gprs[2] & 0xffffffff,
269 8, &vcpu->run->s.regs.gprs[3],
270 vcpu->run->s.regs.gprs[4]);
277 vcpu->run->s.regs.gprs[2] = ret;
282 int kvm_s390_handle_diag(struct kvm_vcpu *vcpu)
284 int code = kvm_s390_get_base_disp_rs(vcpu, NULL) & 0xffff;
286 if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
287 return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP);
289 trace_kvm_s390_handle_diag(vcpu, code);
292 return diag_release_pages(vcpu);
294 return __diag_time_slice_end(vcpu);
296 return __diag_time_slice_end_directed(vcpu);
298 return __diag_page_ref_service(vcpu);
300 return __diag_ipl_functions(vcpu);
302 return __diag_virtio_hypercall(vcpu);
304 vcpu->stat.instruction_diagnose_other++;