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| author | Janosch Frank <frankja@linux.vnet.ibm.com> | 2016-05-09 14:14:01 +0200 |
|---|---|---|
| committer | Christian Borntraeger <borntraeger@de.ibm.com> | 2016-06-10 12:07:11 +0200 |
| commit | a011eeb2a3d6cd778eb63bea0bf149ebbe658ab5 (patch) | |
| tree | 9e0ef8496b793e205fb96efbdacab329f1ad9bcc /arch/s390/kvm/trace.h | |
| parent | 022bd2d11cc51f62e873a09bcae8016b10950194 (diff) | |
KVM: s390: Add operation exception interception handler
This commit introduces code that handles operation exception
interceptions. With this handler we can emulate instructions by using
illegal opcodes.
Signed-off-by: Janosch Frank <frankja@linux.vnet.ibm.com>
Reviewed-by: David Hildenbrand <dahi@linux.vnet.ibm.com>
Signed-off-by: Christian Borntraeger <borntraeger@de.ibm.com>
Diffstat (limited to 'arch/s390/kvm/trace.h')
| -rw-r--r-- | arch/s390/kvm/trace.h | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/s390/kvm/trace.h b/arch/s390/kvm/trace.h index 916834d7a73a..90d26a6aa52c 100644 --- a/arch/s390/kvm/trace.h +++ b/arch/s390/kvm/trace.h @@ -412,6 +412,27 @@ TRACE_EVENT(kvm_s390_handle_stsi, __entry->addr) ); +TRACE_EVENT(kvm_s390_handle_operexc, + TP_PROTO(VCPU_PROTO_COMMON, __u16 ipa, __u32 ipb), + TP_ARGS(VCPU_ARGS_COMMON, ipa, ipb), + + TP_STRUCT__entry( + VCPU_FIELD_COMMON + __field(__u64, instruction) + ), + + TP_fast_assign( + VCPU_ASSIGN_COMMON + __entry->instruction = ((__u64)ipa << 48) | + ((__u64)ipb << 16); + ), + + VCPU_TP_PRINTK("operation exception on instruction %016llx (%s)", + __entry->instruction, + __print_symbolic(icpt_insn_decoder(__entry->instruction), + icpt_insn_codes)) + ); + #endif /* _TRACE_KVM_H */ /* This part must be outside protection */ |