KVM: PPC: e500: emulate SVR

Return the actual host SVR for now, as we already do for PVR.  Eventually
we may support Qemu overriding PVR/SVR if the situation is appropriate,
once we implement KVM_SET_SREGS on e500.

Signed-off-by: Scott Wood <scottwood@freescale.com>
Signed-off-by: Alexander Graf <agraf@suse.de>

3 files changed, 4 insertions, 0 deletions

diff --git a/arch/powerpc/include/asm/kvm_e500.h b/arch/powerpc/include/asm/kvm_e500.h
index 7fea26fffb25..bb2a0890600f 100644
--- a/arch/powerpc/include/asm/kvm_e500.h
+++ b/arch/powerpc/include/asm/kvm_e500.h
@@ -43,6 +43,7 @@ struct kvmppc_vcpu_e500 {
 
         u32 host_pid[E500_PID_NUM];
         u32 pid[E500_PID_NUM];
+        u32 svr;
 
         u32 mas0;
         u32 mas1;
diff --git a/arch/powerpc/kvm/e500.c b/arch/powerpc/kvm/e500.c
index e3768ee9b595..0c1af1267843 100644
--- a/arch/powerpc/kvm/e500.c
+++ b/arch/powerpc/kvm/e500.c
@@ -63,6 +63,7 @@ int kvmppc_core_vcpu_setup(struct kvm_vcpu *vcpu)
 
         /* Registers init */
         vcpu->arch.pvr = mfspr(SPRN_PVR);
+        vcpu_e500->svr = mfspr(SPRN_SVR);
 
         /* Since booke kvm only support one core, update all vcpus' PIR to 0 */
         vcpu->vcpu_id = 0;
diff --git a/arch/powerpc/kvm/e500_emulate.c b/arch/powerpc/kvm/e500_emulate.c
index 8e3edfbc9634..e2fb47f035a5 100644
--- a/arch/powerpc/kvm/e500_emulate.c
+++ b/arch/powerpc/kvm/e500_emulate.c
@@ -175,6 +175,8 @@ int kvmppc_core_emulate_mfspr(struct kvm_vcpu *vcpu, int sprn, int rt)
                 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid0); break;
         case SPRN_HID1:
                 kvmppc_set_gpr(vcpu, rt, vcpu_e500->hid1); break;
+        case SPRN_SVR:
+                kvmppc_set_gpr(vcpu, rt, vcpu_e500->svr); break;
 
         case SPRN_MMUCSR0:
                 kvmppc_set_gpr(vcpu, rt, 0); break;