diff --git a/hw/ppc/spapr_hcall.c b/hw/ppc/spapr_hcall.c
index f05a90ed2cd2a74cca37a12e917bb85c80551c91..79521291ad3c23302a16a4d1d9a14a214913aecc 100644
--- a/hw/ppc/spapr_hcall.c
+++ b/hw/ppc/spapr_hcall.c
@@ -878,6 +878,32 @@ static target_ulong h_set_mode(PowerPCCPU *cpu, sPAPRMachineState *spapr,
     return ret;
 }
 
+static target_ulong h_clean_slb(PowerPCCPU *cpu, sPAPRMachineState *spapr,
+                                target_ulong opcode, target_ulong *args)
+{
+    qemu_log_mask(LOG_UNIMP, "Unimplemented SPAPR hcall 0x"TARGET_FMT_lx"%s\n",
+                  opcode, " (H_CLEAN_SLB)");
+    return H_FUNCTION;
+}
+
+static target_ulong h_invalidate_pid(PowerPCCPU *cpu, sPAPRMachineState *spapr,
+                                     target_ulong opcode, target_ulong *args)
+{
+    qemu_log_mask(LOG_UNIMP, "Unimplemented SPAPR hcall 0x"TARGET_FMT_lx"%s\n",
+                  opcode, " (H_INVALIDATE_PID)");
+    return H_FUNCTION;
+}
+
+static target_ulong h_register_process_table(PowerPCCPU *cpu,
+                                             sPAPRMachineState *spapr,
+                                             target_ulong opcode,
+                                             target_ulong *args)
+{
+    qemu_log_mask(LOG_UNIMP, "Unimplemented SPAPR hcall 0x"TARGET_FMT_lx"%s\n",
+                  opcode, " (H_REGISTER_PROC_TBL)");
+    return H_FUNCTION;
+}
+
 #define H_SIGNAL_SYS_RESET_ALL         -1
 #define H_SIGNAL_SYS_RESET_ALLBUTSELF  -2
 
@@ -1084,6 +1110,11 @@ static void hypercall_register_types(void)
     spapr_register_hypercall(H_PAGE_INIT, h_page_init);
     spapr_register_hypercall(H_SET_MODE, h_set_mode);
 
+    /* In Memory Table MMU h-calls */
+    spapr_register_hypercall(H_CLEAN_SLB, h_clean_slb);
+    spapr_register_hypercall(H_INVALIDATE_PID, h_invalidate_pid);
+    spapr_register_hypercall(H_REGISTER_PROC_TBL, h_register_process_table);
+
     /* "debugger" hcalls (also used by SLOF). Note: We do -not- differenciate
      * here between the "CI" and the "CACHE" variants, they will use whatever
      * mapping attributes qemu is using. When using KVM, the kernel will
diff --git a/include/hw/ppc/spapr.h b/include/hw/ppc/spapr.h
index ba9e689ee230f9706754eefd45e4b35724997cd6..342f7a61f4db7ef3911efd49929807c9a56c7103 100644
--- a/include/hw/ppc/spapr.h
+++ b/include/hw/ppc/spapr.h
@@ -361,6 +361,9 @@ struct sPAPRMachineState {
 #define H_XIRR_X                0x2FC
 #define H_RANDOM                0x300
 #define H_SET_MODE              0x31C
+#define H_CLEAN_SLB             0x374
+#define H_INVALIDATE_PID        0x378
+#define H_REGISTER_PROC_TBL     0x37C
 #define H_SIGNAL_SYS_RESET      0x380
 #define MAX_HCALL_OPCODE        H_SIGNAL_SYS_RESET