diff --git a/hw/alpha/dp264.c b/hw/alpha/dp264.c
index d6431fd586..85405da3df 100644
--- a/hw/alpha/dp264.c
+++ b/hw/alpha/dp264.c
@@ -177,6 +177,7 @@ static void clipper_machine_init(MachineClass *mc)
 {
     mc->desc = "Alpha DP264/CLIPPER";
     mc->init = clipper_init;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = 4;
     mc->is_default = 1;
 }
diff --git a/hw/arm/spitz.c b/hw/arm/spitz.c
index 949a15ae64..fe2d5a764c 100644
--- a/hw/arm/spitz.c
+++ b/hw/arm/spitz.c
@@ -998,6 +998,7 @@ static void spitzpda_class_init(ObjectClass *oc, void *data)
 
     mc->desc = "Sharp SL-C3000 (Spitz) PDA (PXA270)";
     mc->init = spitz_init;
+    mc->block_default_type = IF_IDE;
 }
 
 static const TypeInfo spitzpda_type = {
@@ -1012,6 +1013,7 @@ static void borzoipda_class_init(ObjectClass *oc, void *data)
 
     mc->desc = "Sharp SL-C3100 (Borzoi) PDA (PXA270)";
     mc->init = borzoi_init;
+    mc->block_default_type = IF_IDE;
 }
 
 static const TypeInfo borzoipda_type = {
@@ -1026,6 +1028,7 @@ static void terrierpda_class_init(ObjectClass *oc, void *data)
 
     mc->desc = "Sharp SL-C3200 (Terrier) PDA (PXA270)";
     mc->init = terrier_init;
+    mc->block_default_type = IF_IDE;
 }
 
 static const TypeInfo terrierpda_type = {
diff --git a/hw/arm/tosa.c b/hw/arm/tosa.c
index c3db996930..9f58a23fb5 100644
--- a/hw/arm/tosa.c
+++ b/hw/arm/tosa.c
@@ -263,6 +263,7 @@ static void tosapda_machine_init(MachineClass *mc)
 {
     mc->desc = "Sharp SL-6000 (Tosa) PDA (PXA255)";
     mc->init = tosa_init;
+    mc->block_default_type = IF_IDE;
 }
 
 DEFINE_MACHINE("tosa", tosapda_machine_init)
diff --git a/hw/i386/pc.c b/hw/i386/pc.c
index e3fcd514dd..a555c35d91 100644
--- a/hw/i386/pc.c
+++ b/hw/i386/pc.c
@@ -2339,6 +2339,7 @@ static void pc_machine_class_init(ObjectClass *oc, void *data)
     mc->query_hotpluggable_cpus = pc_query_hotpluggable_cpus;
     mc->default_boot_order = "cad";
     mc->hot_add_cpu = pc_hot_add_cpu;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = 255;
     mc->reset = pc_machine_reset;
     hc->pre_plug = pc_machine_device_pre_plug_cb;
diff --git a/hw/mips/mips_fulong2e.c b/hw/mips/mips_fulong2e.c
index 9a4dae42d9..e636c3abaa 100644
--- a/hw/mips/mips_fulong2e.c
+++ b/hw/mips/mips_fulong2e.c
@@ -387,6 +387,7 @@ static void mips_fulong2e_machine_init(MachineClass *mc)
 {
     mc->desc = "Fulong 2e mini pc";
     mc->init = mips_fulong2e_init;
+    mc->block_default_type = IF_IDE;
 }
 
 DEFINE_MACHINE("fulong2e", mips_fulong2e_machine_init)
diff --git a/hw/mips/mips_malta.c b/hw/mips/mips_malta.c
index 75877de11c..5dd177e961 100644
--- a/hw/mips/mips_malta.c
+++ b/hw/mips/mips_malta.c
@@ -1264,6 +1264,7 @@ static void mips_malta_machine_init(MachineClass *mc)
 {
     mc->desc = "MIPS Malta Core LV";
     mc->init = mips_malta_init;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = 16;
     mc->is_default = 1;
 }
diff --git a/hw/mips/mips_r4k.c b/hw/mips/mips_r4k.c
index 27548c43b6..748586ed77 100644
--- a/hw/mips/mips_r4k.c
+++ b/hw/mips/mips_r4k.c
@@ -306,6 +306,7 @@ static void mips_machine_init(MachineClass *mc)
 {
     mc->desc = "mips r4k platform";
     mc->init = mips_r4k_init;
+    mc->block_default_type = IF_IDE;
 }
 
 DEFINE_MACHINE("mips", mips_machine_init)
diff --git a/hw/ppc/mac_newworld.c b/hw/ppc/mac_newworld.c
index 2bfdb643df..716aea6852 100644
--- a/hw/ppc/mac_newworld.c
+++ b/hw/ppc/mac_newworld.c
@@ -518,6 +518,7 @@ static void core99_machine_class_init(ObjectClass *oc, void *data)
 
     mc->desc = "Mac99 based PowerMAC";
     mc->init = ppc_core99_init;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = MAX_CPUS;
     mc->default_boot_order = "cd";
     mc->kvm_type = core99_kvm_type;
diff --git a/hw/ppc/mac_oldworld.c b/hw/ppc/mac_oldworld.c
index 56282c5bc6..5df94e239b 100644
--- a/hw/ppc/mac_oldworld.c
+++ b/hw/ppc/mac_oldworld.c
@@ -368,6 +368,7 @@ static void heathrow_machine_init(MachineClass *mc)
 {
     mc->desc = "Heathrow based PowerMAC";
     mc->init = ppc_heathrow_init;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = MAX_CPUS;
 #ifndef TARGET_PPC64
     mc->is_default = 1;
diff --git a/hw/ppc/prep.c b/hw/ppc/prep.c
index ca7959c126..961230c569 100644
--- a/hw/ppc/prep.c
+++ b/hw/ppc/prep.c
@@ -684,6 +684,7 @@ static void prep_machine_init(MachineClass *mc)
 {
     mc->desc = "PowerPC PREP platform";
     mc->init = ppc_prep_init;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = MAX_CPUS;
     mc->default_boot_order = "cad";
 }
diff --git a/hw/sh4/r2d.c b/hw/sh4/r2d.c
index db373c70c5..6d06968f8b 100644
--- a/hw/sh4/r2d.c
+++ b/hw/sh4/r2d.c
@@ -362,6 +362,7 @@ static void r2d_machine_init(MachineClass *mc)
 {
     mc->desc = "r2d-plus board";
     mc->init = r2d_init;
+    mc->block_default_type = IF_IDE;
 }
 
 DEFINE_MACHINE("r2d", r2d_machine_init)
diff --git a/hw/sparc64/sun4u.c b/hw/sparc64/sun4u.c
index d1a6bca873..d347b6616d 100644
--- a/hw/sparc64/sun4u.c
+++ b/hw/sparc64/sun4u.c
@@ -579,6 +579,7 @@ static void sun4u_class_init(ObjectClass *oc, void *data)
 
     mc->desc = "Sun4u platform";
     mc->init = sun4u_init;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = 1; /* XXX for now */
     mc->is_default = 1;
     mc->default_boot_order = "c";
@@ -596,6 +597,7 @@ static void sun4v_class_init(ObjectClass *oc, void *data)
 
     mc->desc = "Sun4v platform";
     mc->init = sun4v_init;
+    mc->block_default_type = IF_IDE;
     mc->max_cpus = 1; /* XXX for now */
     mc->default_boot_order = "c";
 }