/* * kvm_s390.h - definition for kvm on s390 * * Copyright IBM Corp. 2008,2009 * * This program is free software; you can redistribute it and/or modify * it under the terms of the GNU General Public License (version 2 only) * as published by the Free Software Foundation. * * Author(s): Carsten Otte <cotte@de.ibm.com> * Christian Borntraeger <borntraeger@de.ibm.com> * Christian Ehrhardt <ehrhardt@de.ibm.com> */ #ifndef ARCH_S390_KVM_S390_H #define ARCH_S390_KVM_S390_H #include <linux/hrtimer.h> #include <linux/kvm.h> #include <linux/kvm_host.h> /* The current code can have up to 256 pages for virtio */ #define VIRTIODESCSPACE (256ul * 4096ul) typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu); /* negativ values are error codes, positive values for internal conditions */ #define SIE_INTERCEPT_RERUNVCPU (1<<0) int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu); #define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\ do { \ debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \ d_args); \ } while (0) #define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\ do { \ debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \ "%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \ d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\ d_args); \ } while (0) static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu) { return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT; } int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); void kvm_s390_tasklet(unsigned long parm); void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu); int kvm_s390_inject_vm(struct kvm *kvm, struct kvm_s390_interrupt *s390int); int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu, struct kvm_s390_interrupt *s390int); int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code); int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action); /* implemented in priv.c */ int kvm_s390_handle_b2(struct kvm_vcpu *vcpu); int kvm_s390_handle_e5(struct kvm_vcpu *vcpu); /* implemented in sigp.c */ int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu); /* implemented in kvm-s390.c */ int kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu, unsigned long addr); /* implemented in diag.c */ int kvm_s390_handle_diag(struct kvm_vcpu *vcpu); #endif