70455a36a0
The kernel handles some priviledged instruction exits. While I was unable to trigger such an exit from guest userspace, the code should check for supervisor state before emulating a priviledged instruction. I also renamed kvm_s390_handle_priv to kvm_s390_handle_b2. After all there are non priviledged b2 instructions like stck (store clock). Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com> Signed-off-by: Avi Kivity <avi@redhat.com>
64 lines
1.9 KiB
C
64 lines
1.9 KiB
C
/*
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* kvm_s390.h - definition for kvm on s390
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*
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* Copyright IBM Corp. 2008
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License (version 2 only)
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* as published by the Free Software Foundation.
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*
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* Author(s): Carsten Otte <cotte@de.ibm.com>
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* Christian Borntraeger <borntraeger@de.ibm.com>
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*/
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#ifndef ARCH_S390_KVM_S390_H
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#define ARCH_S390_KVM_S390_H
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#include <linux/kvm.h>
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#include <linux/kvm_host.h>
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typedef int (*intercept_handler_t)(struct kvm_vcpu *vcpu);
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int kvm_handle_sie_intercept(struct kvm_vcpu *vcpu);
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#define VM_EVENT(d_kvm, d_loglevel, d_string, d_args...)\
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do { \
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debug_sprintf_event(d_kvm->arch.dbf, d_loglevel, d_string "\n", \
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d_args); \
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} while (0)
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#define VCPU_EVENT(d_vcpu, d_loglevel, d_string, d_args...)\
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do { \
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debug_sprintf_event(d_vcpu->kvm->arch.dbf, d_loglevel, \
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"%02d[%016lx-%016lx]: " d_string "\n", d_vcpu->vcpu_id, \
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d_vcpu->arch.sie_block->gpsw.mask, d_vcpu->arch.sie_block->gpsw.addr,\
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d_args); \
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} while (0)
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static inline int __cpu_is_stopped(struct kvm_vcpu *vcpu)
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{
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return atomic_read(&vcpu->arch.sie_block->cpuflags) & CPUSTAT_STOP_INT;
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}
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int kvm_s390_handle_wait(struct kvm_vcpu *vcpu);
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void kvm_s390_idle_wakeup(unsigned long data);
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void kvm_s390_deliver_pending_interrupts(struct kvm_vcpu *vcpu);
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int kvm_s390_inject_vm(struct kvm *kvm,
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struct kvm_s390_interrupt *s390int);
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int kvm_s390_inject_vcpu(struct kvm_vcpu *vcpu,
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struct kvm_s390_interrupt *s390int);
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int kvm_s390_inject_program_int(struct kvm_vcpu *vcpu, u16 code);
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/* implemented in priv.c */
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int kvm_s390_handle_b2(struct kvm_vcpu *vcpu);
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/* implemented in sigp.c */
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int kvm_s390_handle_sigp(struct kvm_vcpu *vcpu);
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/* implemented in kvm-s390.c */
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int __kvm_s390_vcpu_store_status(struct kvm_vcpu *vcpu,
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unsigned long addr);
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/* implemented in diag.c */
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int kvm_s390_handle_diag(struct kvm_vcpu *vcpu);
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#endif
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