| /* |
| * 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); |
| |
| static inline long kvm_s390_vcpu_get_memsize(struct kvm_vcpu *vcpu) |
| { |
| return vcpu->arch.sie_block->gmslm |
| - vcpu->arch.sie_block->gmsor |
| - VIRTIODESCSPACE + 1ul; |
| } |
| |
| static inline void kvm_s390_vcpu_set_mem(struct kvm_vcpu *vcpu) |
| { |
| int idx; |
| struct kvm_memory_slot *mem; |
| struct kvm_memslots *memslots; |
| |
| idx = srcu_read_lock(&vcpu->kvm->srcu); |
| memslots = kvm_memslots(vcpu->kvm); |
| |
| mem = &memslots->memslots[0]; |
| |
| vcpu->arch.sie_block->gmsor = mem->userspace_addr; |
| vcpu->arch.sie_block->gmslm = |
| mem->userspace_addr + |
| (mem->npages << PAGE_SHIFT) + |
| VIRTIODESCSPACE - 1ul; |
| |
| srcu_read_unlock(&vcpu->kvm->srcu, idx); |
| } |
| |
| /* 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 |