diff options
| -rw-r--r-- | arch/s390/kvm/kvm-s390.h | 7 | ||||
| -rw-r--r-- | arch/s390/kvm/priv.c | 15 |
2 files changed, 13 insertions, 9 deletions
diff --git a/arch/s390/kvm/kvm-s390.h b/arch/s390/kvm/kvm-s390.h index faa4df633474..dc99f1ca4267 100644 --- a/arch/s390/kvm/kvm-s390.h +++ b/arch/s390/kvm/kvm-s390.h @@ -115,6 +115,13 @@ static inline u64 kvm_s390_get_base_disp_rs(struct kvm_vcpu *vcpu) return (base2 ? vcpu->run->s.regs.gprs[base2] : 0) + disp2; } +/* Set the condition code in the guest program status word */ +static inline void kvm_s390_set_psw_cc(struct kvm_vcpu *vcpu, unsigned long cc) +{ + vcpu->arch.sie_block->gpsw.mask &= ~(3UL << 44); + vcpu->arch.sie_block->gpsw.mask |= cc << 44; +} + int kvm_s390_handle_wait(struct kvm_vcpu *vcpu); enum hrtimer_restart kvm_s390_idle_wakeup(struct hrtimer *timer); void kvm_s390_tasklet(unsigned long parm); diff --git a/arch/s390/kvm/priv.c b/arch/s390/kvm/priv.c index 697e34b59036..8f8d8ee9b1fb 100644 --- a/arch/s390/kvm/priv.c +++ b/arch/s390/kvm/priv.c @@ -163,8 +163,7 @@ static int handle_tpi(struct kvm_vcpu *vcpu) kfree(inti); no_interrupt: /* Set condition code and we're done. */ - vcpu->arch.sie_block->gpsw.mask &= ~(3ul << 44); - vcpu->arch.sie_block->gpsw.mask |= (cc & 3ul) << 44; + kvm_s390_set_psw_cc(vcpu, cc); return 0; } @@ -219,8 +218,7 @@ static int handle_io_inst(struct kvm_vcpu *vcpu) * Set condition code 3 to stop the guest from issueing channel * I/O instructions. */ - vcpu->arch.sie_block->gpsw.mask &= ~(3ul << 44); - vcpu->arch.sie_block->gpsw.mask |= (3 & 3ul) << 44; + kvm_s390_set_psw_cc(vcpu, 3); return 0; } } @@ -383,7 +381,7 @@ static int handle_stsi(struct kvm_vcpu *vcpu) return kvm_s390_inject_program_int(vcpu, PGM_PRIVILEGED_OP); if (fc > 3) { - vcpu->arch.sie_block->gpsw.mask |= 3ul << 44; /* cc 3 */ + kvm_s390_set_psw_cc(vcpu, 3); return 0; } @@ -393,7 +391,7 @@ static int handle_stsi(struct kvm_vcpu *vcpu) if (fc == 0) { vcpu->run->s.regs.gprs[0] = 3 << 28; - vcpu->arch.sie_block->gpsw.mask &= ~(3ul << 44); /* cc 0 */ + kvm_s390_set_psw_cc(vcpu, 0); return 0; } @@ -427,12 +425,11 @@ static int handle_stsi(struct kvm_vcpu *vcpu) } trace_kvm_s390_handle_stsi(vcpu, fc, sel1, sel2, operand2); free_page(mem); - vcpu->arch.sie_block->gpsw.mask &= ~(3ul << 44); + kvm_s390_set_psw_cc(vcpu, 0); vcpu->run->s.regs.gprs[0] = 0; return 0; out_no_data: - /* condition code 3 */ - vcpu->arch.sie_block->gpsw.mask |= 3ul << 44; + kvm_s390_set_psw_cc(vcpu, 3); out_exception: free_page(mem); return rc; |