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-rw-r--r--arch/s390/kvm/kvm-s390.c12
1 files changed, 10 insertions, 2 deletions
diff --git a/arch/s390/kvm/kvm-s390.c b/arch/s390/kvm/kvm-s390.c
index 12cec63eda27..d0dcf73f36bc 100644
--- a/arch/s390/kvm/kvm-s390.c
+++ b/arch/s390/kvm/kvm-s390.c
@@ -2181,9 +2181,17 @@ static int vcpu_post_run_fault_in_sie(struct kvm_vcpu *vcpu)
* to be able to forward the PSW.
*/
rc = read_guest_instr(vcpu, &opcode, 1);
- if (rc)
- return kvm_s390_inject_prog_cond(vcpu, rc);
ilen = insn_length(opcode);
+ if (rc < 0) {
+ return rc;
+ } else if (rc) {
+ /* Instruction-Fetching Exceptions - we can't detect the ilen.
+ * Forward by arbitrary ilc, injection will take care of
+ * nullification if necessary.
+ */
+ pgm_info = vcpu->arch.pgm;
+ ilen = 4;
+ }
pgm_info.flags = ilen | KVM_S390_PGM_FLAGS_ILC_VALID;
kvm_s390_forward_psw(vcpu, ilen);
return kvm_s390_inject_prog_irq(vcpu, &pgm_info);