+Index: new/hw/pc_piix.c
+===================================================================
+--- new.orig/hw/pc_piix.c 2012-11-22 10:10:56.000000000 +0100
++++ new/hw/pc_piix.c 2012-11-22 10:16:29.000000000 +0100
+@@ -352,6 +352,8 @@
+ }
+ #endif
+
++#define KVM_MACHINE_OPTIONS "accel=kvm"
++
+ static QEMUMachine pc_machine_v1_3 = {
+ .name = "pc-1.3",
+ .alias = "pc",
+@@ -359,6 +361,7 @@
+ .init = pc_init_pci_1_3,
+ .max_cpus = 255,
+ .is_default = 1,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ };
+
+ #define PC_COMPAT_1_2 \
+@@ -393,6 +396,7 @@
+ .desc = "Standard PC",
+ .init = pc_init_pci,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_2,
+ { /* end of list */ }
+@@ -436,6 +440,7 @@
+ .desc = "Standard PC",
+ .init = pc_init_pci,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_1,
+ { /* end of list */ }
+@@ -471,6 +476,7 @@
+ .desc = "Standard PC",
+ .init = pc_init_pci,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_1_0,
+ { /* end of list */ }
+@@ -486,6 +492,7 @@
+ .desc = "Standard PC",
+ .init = pc_init_pci,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_15,
+ { /* end of list */ }
+@@ -518,6 +525,7 @@
+ .desc = "Standard PC",
+ .init = pc_init_pci,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_14,
+ {
+@@ -551,6 +559,7 @@
+ .desc = "Standard PC",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_13,
+ {
+@@ -588,6 +597,7 @@
+ .desc = "Standard PC",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_12,
+ {
+@@ -621,6 +631,7 @@
+ .desc = "Standard PC, qemu 0.11",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_11,
+ {
+@@ -642,6 +653,7 @@
+ .desc = "Standard PC, qemu 0.10",
+ .init = pc_init_pci_no_kvmclock,
+ .max_cpus = 255,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ PC_COMPAT_0_11,
+ {
+@@ -675,6 +687,7 @@
+ .desc = "ISA-only PC",
+ .init = pc_init_isa,
+ .max_cpus = 1,
++ .default_machine_opts = KVM_MACHINE_OPTIONS,
+ .compat_props = (GlobalProperty[]) {
+ {
+ .driver = "pc-sysfw",