[RFC PATCH 5/6] KVM: PPC: Book3E: Add ONE_REG AltiVec support

[Mihai Caraman <mihai.caraman@freescale.com>]

Add ONE_REG support for AltiVec on Book3E.

Signed-off-by: Mihai Caraman <mihai.caraman@freescale.com>
---
 arch/powerpc/kvm/booke.c |   32 ++++++++++++++++++++++++++++++++
 1 files changed, 32 insertions(+), 0 deletions(-)

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 01eb635..019496d 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1570,6 +1570,22 @@ int kvm_vcpu_ioctl_get_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 	case KVM_REG_PPC_DEBUG_INST:
 		val = get_reg_val(reg->id, KVMPPC_INST_EHPRIV);
 		break;
+#ifdef CONFIG_ALTIVEC
+	case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
+		if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+			r = -ENXIO;
+			break;
+		}
+		val.vval = vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0];
+		break;
+	case KVM_REG_PPC_VSCR:
+		if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+			r = -ENXIO;
+			break;
+		}
+		val = get_reg_val(reg->id, vcpu->arch.vscr.u[3]);
+		break;
+#endif /* CONFIG_ALTIVEC */
 	default:
 		r = kvmppc_get_one_reg(vcpu, reg->id, &val);
 		break;
@@ -1643,6 +1659,22 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
 		kvmppc_set_tcr(vcpu, tcr);
 		break;
 	}
+#ifdef CONFIG_ALTIVEC
+	case KVM_REG_PPC_VR0 ... KVM_REG_PPC_VR31:
+		if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+			r = -ENXIO;
+			break;
+		}
+		vcpu->arch.vr[reg->id - KVM_REG_PPC_VR0] = val.vval;
+		break;
+	case KVM_REG_PPC_VSCR:
+		if (!cpu_has_feature(CPU_FTR_ALTIVEC)) {
+			r = -ENXIO;
+			break;
+		}
+		vcpu->arch.vscr.u[3] = set_reg_val(reg->id, val);
+		break;
+#endif /* CONFIG_ALTIVEC */
 	default:
 		r = kvmppc_set_one_reg(vcpu, reg->id, &val);
 		break;
-- 
1.7.4.1