KVM: PPC: Book3S HV: Fix build failure without IOMMU support

Currently trying to build without IOMMU support will fail:

  (.text+0x1380): undefined reference to `kvmppc_h_get_tce'
  (.text+0x1384): undefined reference to `kvmppc_rm_h_put_tce'
  (.text+0x149c): undefined reference to `kvmppc_rm_h_stuff_tce'
  (.text+0x14a0): undefined reference to `kvmppc_rm_h_put_tce_indirect'

This happens because turning off IOMMU support will prevent
book3s_64_vio_hv.c from being built because it is only built when
SPAPR_TCE_IOMMU is set, which depends on IOMMU support.

Fix it using ifdefs for the undefined references.

Fixes: 76d837a4c0f9 ("KVM: PPC: Book3S PR: Don't include SPAPR TCE code on non-pseries platforms")
Signed-off-by: Jordan Niethe <jniethe5@gmail.com>
Signed-off-by: Paul Mackerras <paulus@ozlabs.org>

diff --git a/arch/powerpc/kvm/book3s_hv.c b/arch/powerpc/kvm/book3s_hv.c
index 1860c0b..ba8db38 100644 (file)
--- a/arch/powerpc/kvm/book3s_hv.c
+++ b/arch/powerpc/kvm/book3s_hv.c
@@ -937,6 +937,7 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
                ret = kvmppc_h_set_xdabr(vcpu, kvmppc_get_gpr(vcpu, 4),
                                                kvmppc_get_gpr(vcpu, 5));
                break;
+#ifdef CONFIG_SPAPR_TCE_IOMMU
        case H_GET_TCE:
                ret = kvmppc_h_get_tce(vcpu, kvmppc_get_gpr(vcpu, 4),
                                                kvmppc_get_gpr(vcpu, 5));
@@ -966,6 +967,7 @@ int kvmppc_pseries_do_hcall(struct kvm_vcpu *vcpu)
                if (ret == H_TOO_HARD)
                        return RESUME_HOST;
                break;
+#endif
        case H_RANDOM:
                if (!powernv_get_random_long(&vcpu->arch.regs.gpr[4]))
                        ret = H_HARDWARE;

diff --git a/arch/powerpc/kvm/book3s_hv_rmhandlers.S b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
index 9b8d50a..541b121 100644 (file)
--- a/arch/powerpc/kvm/book3s_hv_rmhandlers.S
+++ b/arch/powerpc/kvm/book3s_hv_rmhandlers.S
@@ -2264,8 +2264,13 @@ hcall_real_table:
        .long   DOTSYM(kvmppc_h_clear_mod) - hcall_real_table
        .long   DOTSYM(kvmppc_h_clear_ref) - hcall_real_table
        .long   DOTSYM(kvmppc_h_protect) - hcall_real_table
+#ifdef CONFIG_SPAPR_TCE_IOMMU
        .long   DOTSYM(kvmppc_h_get_tce) - hcall_real_table
        .long   DOTSYM(kvmppc_rm_h_put_tce) - hcall_real_table
+#else
+       .long   0               /* 0x1c */
+       .long   0               /* 0x20 */
+#endif
        .long   0               /* 0x24 - H_SET_SPRG0 */
        .long   DOTSYM(kvmppc_h_set_dabr) - hcall_real_table
        .long   0               /* 0x2c */
@@ -2343,8 +2348,13 @@ hcall_real_table:
        .long   0               /* 0x12c */
        .long   0               /* 0x130 */
        .long   DOTSYM(kvmppc_h_set_xdabr) - hcall_real_table
+#ifdef CONFIG_SPAPR_TCE_IOMMU
        .long   DOTSYM(kvmppc_rm_h_stuff_tce) - hcall_real_table
        .long   DOTSYM(kvmppc_rm_h_put_tce_indirect) - hcall_real_table
+#else
+       .long   0               /* 0x138 */
+       .long   0               /* 0x13c */
+#endif
        .long   0               /* 0x140 */
        .long   0               /* 0x144 */
        .long   0               /* 0x148 */