KVM: PPC: Book3S: Get/set guest FP regs using the GET/SET_ONE_REG interface

[linux-2.6-block.git] / arch / powerpc / kvm / book3s_pr.c

diff --git a/arch/powerpc/kvm/book3s_pr.c b/arch/powerpc/kvm/book3s_pr.c
index c81109f3a3766d6b5e9fdb3cd4b5eea0b2a82232..b853696b6d8e30ad63ce3ef2d3db1bc07c67c1af 100644 (file)
--- a/arch/powerpc/kvm/book3s_pr.c
+++ b/arch/powerpc/kvm/book3s_pr.c
@@ -953,6 +953,19 @@ int kvmppc_get_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
        case KVM_REG_PPC_HIOR:
                *val = get_reg_val(id, to_book3s(vcpu)->hior);
                break;
+#ifdef CONFIG_VSX
+       case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: {
+               long int i = id - KVM_REG_PPC_VSR0;
+
+               if (!cpu_has_feature(CPU_FTR_VSX)) {
+                       r = -ENXIO;
+                       break;
+               }
+               val->vsxval[0] = vcpu->arch.fpr[i];
+               val->vsxval[1] = vcpu->arch.vsr[i];
+               break;
+       }
+#endif /* CONFIG_VSX */
        default:
                r = -EINVAL;
                break;
@@ -970,6 +983,19 @@ int kvmppc_set_one_reg(struct kvm_vcpu *vcpu, u64 id, union kvmppc_one_reg *val)
                to_book3s(vcpu)->hior = set_reg_val(id, *val);
                to_book3s(vcpu)->hior_explicit = true;
                break;
+#ifdef CONFIG_VSX
+       case KVM_REG_PPC_VSR0 ... KVM_REG_PPC_VSR31: {
+               long int i = id - KVM_REG_PPC_VSR0;
+
+               if (!cpu_has_feature(CPU_FTR_VSX)) {
+                       r = -ENXIO;
+                       break;
+               }
+               vcpu->arch.fpr[i] = val->vsxval[0];
+               vcpu->arch.vsr[i] = val->vsxval[1];
+               break;
+       }
+#endif /* CONFIG_VSX */
        default:
                r = -EINVAL;
                break;