KVM: PPC: Book3s: PR: Enable default TCE hypercalls

When KVM_CAP_PPC_ENABLE_HCALL was introduced, H_GET_TCE and H_PUT_TCE
were already implemented and enabled by default; however H_GET_TCE
was missed out on PR KVM (probably because the handler was in
the real mode code at the time).

This enables H_GET_TCE by default. While at this, this wraps
the checks in ifdef CONFIG_SPAPR_TCE_IOMMU just like HV KVM.
Signed-off-by: Alexey Kardashevskiy <aik@ozlabs.ru>
Reviewed-by: Fabiano Rosas <farosas@linux.ibm.com>
Signed-off-by: Michael Ellerman <mpe@ellerman.id.au>
Link: https://lore.kernel.org/r/20220506073737.3823347-1-aik@ozlabs.ru

arch/powerpc/kvm/book3s_pr_papr.c

@@ -433,9 +433,12 @@ int kvmppc_hcall_impl_pr(unsigned long cmd)
 	case H_REMOVE:
 	case H_PROTECT:
 	case H_BULK_REMOVE:
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+	case H_GET_TCE:
 	case H_PUT_TCE:
 	case H_PUT_TCE_INDIRECT:
 	case H_STUFF_TCE:
+#endif
 	case H_CEDE:
 	case H_LOGICAL_CI_LOAD:
 	case H_LOGICAL_CI_STORE:
@@ -464,7 +467,10 @@ static unsigned int default_hcall_list[] = {
 	H_REMOVE,
 	H_PROTECT,
 	H_BULK_REMOVE,
+#ifdef CONFIG_SPAPR_TCE_IOMMU
+	H_GET_TCE,
 	H_PUT_TCE,
+#endif
 	H_CEDE,
 	H_SET_MODE,
 #ifdef CONFIG_KVM_XICS