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path: root/arch/powerpc/kvm/booke_emulate.c
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Diffstat (limited to 'arch/powerpc/kvm/booke_emulate.c')
-rw-r--r--arch/powerpc/kvm/booke_emulate.c36
1 files changed, 31 insertions, 5 deletions
diff --git a/arch/powerpc/kvm/booke_emulate.c b/arch/powerpc/kvm/booke_emulate.c
index 12834bb608ab..4685b8cf2249 100644
--- a/arch/powerpc/kvm/booke_emulate.c
+++ b/arch/powerpc/kvm/booke_emulate.c
@@ -133,10 +133,10 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
vcpu->arch.csrr1 = spr_val;
break;
case SPRN_DBCR0:
- vcpu->arch.dbcr0 = spr_val;
+ vcpu->arch.dbg_reg.dbcr0 = spr_val;
break;
case SPRN_DBCR1:
- vcpu->arch.dbcr1 = spr_val;
+ vcpu->arch.dbg_reg.dbcr1 = spr_val;
break;
case SPRN_DBSR:
vcpu->arch.dbsr &= ~spr_val;
@@ -145,6 +145,14 @@ int kvmppc_booke_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, ulong spr_val)
kvmppc_clr_tsr_bits(vcpu, spr_val);
break;
case SPRN_TCR:
+ /*
+ * WRC is a 2-bit field that is supposed to preserve its
+ * value once written to non-zero.
+ */
+ if (vcpu->arch.tcr & TCR_WRC_MASK) {
+ spr_val &= ~TCR_WRC_MASK;
+ spr_val |= vcpu->arch.tcr & TCR_WRC_MASK;
+ }
kvmppc_set_tcr(vcpu, spr_val);
break;
@@ -229,7 +237,17 @@ 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;
+#if defined(CONFIG_64BIT)
+ case SPRN_EPCR:
+ kvmppc_set_epcr(vcpu, spr_val);
+#ifdef CONFIG_KVM_BOOKE_HV
+ mtspr(SPRN_EPCR, vcpu->arch.shadow_epcr);
+#endif
+ break;
+#endif
default:
emulated = EMULATE_FAIL;
}
@@ -258,10 +276,10 @@ int kvmppc_booke_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, ulong *spr_val)
*spr_val = vcpu->arch.csrr1;
break;
case SPRN_DBCR0:
- *spr_val = vcpu->arch.dbcr0;
+ *spr_val = vcpu->arch.dbg_reg.dbcr0;
break;
case SPRN_DBCR1:
- *spr_val = vcpu->arch.dbcr1;
+ *spr_val = vcpu->arch.dbg_reg.dbcr1;
break;
case SPRN_DBSR:
*spr_val = vcpu->arch.dbsr;
@@ -321,6 +339,14 @@ 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;
+#if defined(CONFIG_64BIT)
+ case SPRN_EPCR:
+ *spr_val = vcpu->arch.epcr;
+ break;
+#endif
default:
emulated = EMULATE_FAIL;