int kvmppc_booke_emulate_mfspr()

in kvm/booke_emulate.c [379:511]

• 129 lines of code
• 40 McCabe index (conditional complexity)

int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
{
	int emulated = EMULATE_DONE;

	switch (sprn) {
	case SPRN_IVPR:
		*spr_val = vcpu->arch.ivpr;
		break;
	case SPRN_DEAR:
		*spr_val = vcpu->arch.shared->dar;
		break;
	case SPRN_ESR:
		*spr_val = vcpu->arch.shared->esr;
		break;
	case SPRN_EPR:
		*spr_val = vcpu->arch.epr;
		break;
	case SPRN_CSRR0:
		*spr_val = vcpu->arch.csrr0;
		break;
	case SPRN_CSRR1:
		*spr_val = vcpu->arch.csrr1;
		break;
	case SPRN_DSRR0:
		*spr_val = vcpu->arch.dsrr0;
		break;
	case SPRN_DSRR1:
		*spr_val = vcpu->arch.dsrr1;
		break;
	case SPRN_IAC1:
		*spr_val = vcpu->arch.dbg_reg.iac1;
		break;
	case SPRN_IAC2:
		*spr_val = vcpu->arch.dbg_reg.iac2;
		break;
#if CONFIG_PPC_ADV_DEBUG_IACS > 2
	case SPRN_IAC3:
		*spr_val = vcpu->arch.dbg_reg.iac3;
		break;
	case SPRN_IAC4:
		*spr_val = vcpu->arch.dbg_reg.iac4;
		break;
#endif
	case SPRN_DAC1:
		*spr_val = vcpu->arch.dbg_reg.dac1;
		break;
	case SPRN_DAC2:
		*spr_val = vcpu->arch.dbg_reg.dac2;
		break;
	case SPRN_DBCR0:
		*spr_val = vcpu->arch.dbg_reg.dbcr0;
		if (vcpu->guest_debug)
			*spr_val = *spr_val | DBCR0_EDM;
		break;
	case SPRN_DBCR1:
		*spr_val = vcpu->arch.dbg_reg.dbcr1;
		break;
	case SPRN_DBCR2:
		*spr_val = vcpu->arch.dbg_reg.dbcr2;
		break;
	case SPRN_DBSR:
		*spr_val = vcpu->arch.dbsr;
		break;
	case SPRN_TSR:
		*spr_val = vcpu->arch.tsr;
		break;
	case SPRN_TCR:
		*spr_val = vcpu->arch.tcr;
		break;

	case SPRN_IVOR0:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_CRITICAL];
		break;
	case SPRN_IVOR1:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_MACHINE_CHECK];
		break;
	case SPRN_IVOR2:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DATA_STORAGE];
		break;
	case SPRN_IVOR3:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_INST_STORAGE];
		break;
	case SPRN_IVOR4:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_EXTERNAL];
		break;
	case SPRN_IVOR5:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_ALIGNMENT];
		break;
	case SPRN_IVOR6:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_PROGRAM];
		break;
	case SPRN_IVOR7:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_FP_UNAVAIL];
		break;
	case SPRN_IVOR8:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_SYSCALL];
		break;
	case SPRN_IVOR9:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_AP_UNAVAIL];
		break;
	case SPRN_IVOR10:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DECREMENTER];
		break;
	case SPRN_IVOR11:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_FIT];
		break;
	case SPRN_IVOR12:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_WATCHDOG];
		break;
	case SPRN_IVOR13:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DTLB_MISS];
		break;
	case SPRN_IVOR14:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_ITLB_MISS];
		break;
	case SPRN_IVOR15:
		*spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
		break;
	case SPRN_MCSR:
		*spr_val = vcpu->arch.mcsr;
		break;
#if defined(CONFIG_64BIT)
	case SPRN_EPCR:
		*spr_val = vcpu->arch.epcr;
		break;
#endif

	default:
		emulated = EMULATE_FAIL;
	}

	return emulated;
}