diff options
Diffstat (limited to 'target-s390x')
| -rw-r--r-- | target-s390x/kvm.c | 59 |
1 files changed, 11 insertions, 48 deletions
diff --git a/target-s390x/kvm.c b/target-s390x/kvm.c index ab0e2b505f..eff8d28ea2 100644 --- a/target-s390x/kvm.c +++ b/target-s390x/kvm.c @@ -528,50 +528,19 @@ static int kvm_handle_css_inst(S390CPU *cpu, struct kvm_run *run, no_cc = 1; r = ioinst_handle_sal(env, env->regs[1]); break; - default: - r = -1; + case PRIV_SIGA: + /* Not provided, set CC = 3 for subchannel not operational */ + r = 3; break; + default: + return -1; } - if (r >= 0) { - if (!no_cc) { - setcc(cpu, r); - } - r = 0; - } else if (r < -1) { - r = 0; - } - return r; -} - -static int is_ioinst(uint8_t ipa0, uint8_t ipa1, uint8_t ipb) -{ - int ret = 0; - uint16_t ipa = (ipa0 << 8) | ipa1; - - switch (ipa) { - case IPA0_B2 | PRIV_CSCH: - case IPA0_B2 | PRIV_HSCH: - case IPA0_B2 | PRIV_MSCH: - case IPA0_B2 | PRIV_SSCH: - case IPA0_B2 | PRIV_STSCH: - case IPA0_B2 | PRIV_TPI: - case IPA0_B2 | PRIV_SAL: - case IPA0_B2 | PRIV_RSCH: - case IPA0_B2 | PRIV_STCRW: - case IPA0_B2 | PRIV_STCPS: - case IPA0_B2 | PRIV_RCHP: - case IPA0_B2 | PRIV_SCHM: - case IPA0_B2 | PRIV_CHSC: - case IPA0_B2 | PRIV_SIGA: - case IPA0_B2 | PRIV_XSCH: - case IPA0_B9 | PRIV_EQBS: - case IPA0_EB | PRIV_SQBS: - ret = 1; - break; + if (r >= 0 && !no_cc) { + setcc(cpu, r); } - return ret; + return 0; } static int handle_priv(S390CPU *cpu, struct kvm_run *run, @@ -587,15 +556,9 @@ static int handle_priv(S390CPU *cpu, struct kvm_run *run, r = kvm_sclp_service_call(cpu, run, ipbh0); break; default: - if (is_ioinst(ipa0, ipa1, ipb)) { - r = kvm_handle_css_inst(cpu, run, ipa0, ipa1, ipb); - if (r == -1) { - setcc(cpu, 3); - r = 0; - } - } else { - DPRINTF("KVM: unknown PRIV: 0x%x\n", ipa1); - r = -1; + r = kvm_handle_css_inst(cpu, run, ipa0, ipa1, ipb); + if (r == -1) { + DPRINTF("KVM: unhandled PRIV: 0x%x\n", ipa1); } break; } |