KVM: PPC: BookE: Add MCSR SPR support

Add support for the MCSR SPR. This only implements the SPR storage
bits, not actual machine checks.

Signed-off-by: Alexander Graf <agraf@suse.de>

1 files changed, 6 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
index cc99a0b3d202..514790f41aba 100644
--- a/arch/powerpc/kvm/booke_emulate.c
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -237,6 +237,9 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
         case SPRN_IVOR15:
                 vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG] = spr_val;
                 break;
+        case SPRN_MCSR:
+                vcpu->arch.mcsr &= ~spr_val;
+                break;
 
         default:
                 emulated = EMULATE_FAIL;
@@ -329,6 +332,9 @@ int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
         case SPRN_IVOR15:
                 *spr_val = vcpu->arch.ivor[BOOKE_IRQPRIO_DEBUG];
                 break;
+        case SPRN_MCSR:
+                *spr_val = vcpu->arch.mcsr;
+                break;
 
         default:
                 emulated = EMULATE_FAIL;