forked from luck/tmp_suning_uos_patched
KVM: s390: Handle sckpf instruction
Handle the mandatory intercept SET CLOCK PROGRAMMABLE FIELD instruction. Signed-off-by: Cornelia Huck <cornelia.huck@de.ibm.com> Signed-off-by: Marcelo Tosatti <mtosatti@redhat.com>
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arch/s390/kvm
@ -101,6 +101,7 @@ static int handle_lctl(struct kvm_vcpu *vcpu)
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}
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static intercept_handler_t instruction_handlers[256] = {
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[0x01] = kvm_s390_handle_01,
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[0x83] = kvm_s390_handle_diag,
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[0xae] = kvm_s390_handle_sigp,
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[0xb2] = kvm_s390_handle_b2,
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@ -79,6 +79,7 @@ int kvm_s390_inject_sigp_stop(struct kvm_vcpu *vcpu, int action);
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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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int kvm_s390_handle_e5(struct kvm_vcpu *vcpu);
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int kvm_s390_handle_01(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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@ -380,3 +380,34 @@ int kvm_s390_handle_e5(struct kvm_vcpu *vcpu)
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return -EOPNOTSUPP;
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}
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static int handle_sckpf(struct kvm_vcpu *vcpu)
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{
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u32 value;
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if (vcpu->arch.sie_block->gpsw.mask & PSW_MASK_PSTATE)
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return kvm_s390_inject_program_int(vcpu,
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PGM_PRIVILEGED_OPERATION);
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if (vcpu->run->s.regs.gprs[0] & 0x00000000ffff0000)
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return kvm_s390_inject_program_int(vcpu,
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PGM_SPECIFICATION);
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value = vcpu->run->s.regs.gprs[0] & 0x000000000000ffff;
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vcpu->arch.sie_block->todpr = value;
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return 0;
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}
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static intercept_handler_t x01_handlers[256] = {
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[0x07] = handle_sckpf,
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};
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int kvm_s390_handle_01(struct kvm_vcpu *vcpu)
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{
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intercept_handler_t handler;
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handler = x01_handlers[vcpu->arch.sie_block->ipa & 0x00ff];
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if (handler)
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return handler(vcpu);
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return -EOPNOTSUPP;
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}
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