KVM: PPC: BookE: Add GET/SET_ONE_REG interface for VRSAVE

This makes the VRSAVE register value for a vcpu accessible through
the GET/SET_ONE_REG interface on Book E systems (in addition to the
existing GET/SET_SREGS interface), for consistency with Book 3S.

Signed-off-by: Paul Mackerras <paulus@samba.org>
Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/booke.c b/arch/powerpc/kvm/booke.c
index 17722d82f1d1..65fa7754b194 100644
--- a/arch/powerpc/kvm/booke.c
+++ b/arch/powerpc/kvm/booke.c
@@ -1479,6 +1479,9 @@ 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;
+        case KVM_REG_PPC_VRSAVE:
+                val = get_reg_val(reg->id, vcpu->arch.vrsave);
+                break;
         default:
                 r = kvmppc_get_one_reg(vcpu, reg->id, &val);
                 break;
@@ -1552,6 +1555,9 @@ int kvm_vcpu_ioctl_set_one_reg(struct kvm_vcpu *vcpu, struct kvm_one_reg *reg)
                 kvmppc_set_tcr(vcpu, tcr);
                 break;
         }
+        case KVM_REG_PPC_VRSAVE:
+                vcpu->arch.vrsave = set_reg_val(reg->id, val);
+                break;
         default:
                 r = kvmppc_set_one_reg(vcpu, reg->id, &val);
                 break;