1 /* 2 * kvm_s390.h - definition for kvm on s390 3 * 4 * Copyright IBM Corp. 2008 5 * 6 * This program is free software; you can redistribute it and/or modify 7 * it under the terms of the GNU General Public License (version 2 only) 8 * as published by the Free Software Foundation. 9 * 10 * Author(s): Carsten Otte <cotte@de.ibm.com> 11 * Christian Borntraeger <borntraeger@de.ibm.com> 12 */ 13 14 #ifndef ARCH_S390_KVM_S390_H 15 #define ARCH_S390_KVM_S390_H 16 17 #include <linux/hrtimer.h> 18 #include <linux/kvm.h> 19 #include <linux/kvm_host.h> 20 21 typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu); 22 23 /* negativ values are error codes, positive values for internal conditions */ 24 #define SIE_INTERCEPT_RERUNVCPU (1<<0) 25 int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); 26 27 #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ 28 do { \ 29 debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ 30 d_args); \ 31 } while (0) 32 33 #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\ 34 do { \ 35 debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \ 36 "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \ 37 d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\ 38 d_args); \ 39 } while (0) 40 41 static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu) 42 { 43 return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT; 44 } 45 46 int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); 47 enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); 48 void kvm_s390_tasklet(unsigned long parm); 49 void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); 50 int kvm_s390_inject_vm(struct kvm *kvm, 51 struct kvm_s390_interrupt *s390int); 52 int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, 53 struct kvm_s390_interrupt *s390int); 54 int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); 55 int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); 56 57 /* implemented in priv.c */ 58 int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); 59 60 /* implemented in sigp.c */ 61 int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); 62 63 /* implemented in kvm-s390.c */ 64 int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, 65 unsigned long addr); 66 /* implemented in diag.c */ 67 int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); 68 69 #endif 70