#define PC_Q35_MACHINE_OPTIONS \
PC_DEFAULT_MACHINE_OPTIONS, \
.desc = "Standard PC (Q35 + ICH9, 2009)", \
- .hot_add_cpu = pc_hot_add_cpu
+ .hot_add_cpu = pc_hot_add_cpu, \
+ .units_per_default_bus = 1
#define PC_Q35_2_2_MACHINE_OPTIONS \
PC_Q35_MACHINE_OPTIONS, \