KVM: ppc: Add emulation of E500 register mmucsr0

Latest kernel flushes TLB via mmucsr0.

Signed-off-by: Liu Yu <yu.liu@freescale.com>
Acked-by: Hollis Blanchard <hollisb@us.ibm.com>
Signed-off-by: Avi Kivity <avi@redhat.com>

1 files changed, 8 insertions, 0 deletions

diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index 7a98d4a4c1ed..3f760414b9f8 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -105,6 +105,11 @@ int kvmppc_core_emulate_mtspr(struct kvm_vcpu *vcpu, int sprn, int rs)
         case SPRN_HID1:
                 vcpu_e500->hid1 = vcpu->arch.gpr[rs]; break;
 
+        case SPRN_MMUCSR0:
+                emulated = kvmppc_e500_emul_mt_mmucsr0(vcpu_e500,
+                                vcpu->arch.gpr[rs]);
+                break;
+
         /* extra exceptions */
         case SPRN_IVOR32:
                 vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL] = vcpu->arch.gpr[rs];
@@ -172,6 +177,9 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
         case SPRN_HID1:
                 vcpu->arch.gpr[rt] = vcpu_e500->hid1; break;
 
+        case SPRN_MMUCSR0:
+                vcpu->arch.gpr[rt] = 0; break;
+
         /* extra exceptions */
         case SPRN_IVOR32:
                 vcpu->arch.gpr[rt] = vcpu->arch.ivor[BOOKE_IRQPRIO_SPE_UNAVAIL];