diff options
| author | Janosch Frank | 2019-11-29 10:17:13 +0100 |
|---|---|---|
| committer | Cornelia Huck | 2019-12-14 10:25:50 +0100 |
| commit | 15b6c0370c3e2774fd9ffda5c10c6e36952e8eb6 (patch) | |
| tree | 409fef481ee5279b34dd9536353a750b51433b17 /target/s390x/kvm.c | |
| parent | s390x: Beautify diag308 handling (diff) | |
| download | qemu-15b6c0370c3e2774fd9ffda5c10c6e36952e8eb6.tar.gz qemu-15b6c0370c3e2774fd9ffda5c10c6e36952e8eb6.tar.xz qemu-15b6c0370c3e2774fd9ffda5c10c6e36952e8eb6.zip | |
s390x: kvm: Make kvm_sclp_service_call void
It defaults to returning 0 anyway and that return value is not
necessary, as 0 is also the default rc that the caller would return.
While doing that we can simplify the logic a bit and return early if
we inject a PGM exception.
Signed-off-by: Janosch Frank <frankja@linux.ibm.com>
Reviewed-by: Thomas Huth <thuth@redhat.com>
Message-Id: <20191129091713.4582-1-frankja@linux.ibm.com>
Reviewed-by: David Hildenbrand <david@redhat.com>
Signed-off-by: Cornelia Huck <cohuck@redhat.com>
Diffstat (limited to 'target/s390x/kvm.c')
| -rw-r--r-- | target/s390x/kvm.c | 12 |
1 files changed, 5 insertions, 7 deletions
diff --git a/target/s390x/kvm.c b/target/s390x/kvm.c index 0c9d14b4b1..ad6e38c876 100644 --- a/target/s390x/kvm.c +++ b/target/s390x/kvm.c @@ -1159,13 +1159,13 @@ void kvm_s390_access_exception(S390CPU *cpu, uint16_t code, uint64_t te_code) kvm_s390_vcpu_interrupt(cpu, &irq); } -static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, +static void kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, uint16_t ipbh0) { CPUS390XState *env = &cpu->env; uint64_t sccb; uint32_t code; - int r = 0; + int r; sccb = env->regs[ipbh0 & 0xf]; code = env->regs[(ipbh0 & 0xf0) >> 4]; @@ -1173,11 +1173,9 @@ static int kvm_sclp_service_call(S390CPU *cpu, struct kvm_run *run, r = sclp_service_call(env, sccb, code); if (r < 0) { kvm_s390_program_interrupt(cpu, -r); - } else { - setcc(cpu, r); + return; } - - return 0; + setcc(cpu, r); } static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) @@ -1240,7 +1238,7 @@ static int handle_b2(S390CPU *cpu, struct kvm_run *run, uint8_t ipa1) setcc(cpu, 3); break; case PRIV_B2_SCLP_CALL: - rc = kvm_sclp_service_call(cpu, run, ipbh0); + kvm_sclp_service_call(cpu, run, ipbh0); break; default: rc = -1; |