From: Alexander Graf <agraf@suse.de>
Date: Mon, 13 Aug 2012 12:50:54 +0000 (+0200)
Subject: KVM: PPC: BookE: Add MCSR SPR support
X-Git-Tag: next-20120917~33^2~11
X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=9ffbe2b3796953d93501b478e93c1c48fb129212;p=karo-tx-linux.git

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>
---

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;