|  | riscv_ss = ss.source_set() | 
|  | riscv_ss.add(files('boot.c'), fdt) | 
|  | riscv_ss.add(when: 'CONFIG_RISCV_NUMA', if_true: files('numa.c')) | 
|  | riscv_ss.add(files('riscv_hart.c')) | 
|  | riscv_ss.add(when: 'CONFIG_OPENTITAN', if_true: files('opentitan.c')) | 
|  | riscv_ss.add(when: 'CONFIG_RISCV_VIRT', if_true: files('virt.c')) | 
|  | riscv_ss.add(when: 'CONFIG_SHAKTI_C', if_true: files('shakti_c.c')) | 
|  | riscv_ss.add(when: 'CONFIG_SIFIVE_E', if_true: files('sifive_e.c')) | 
|  | riscv_ss.add(when: 'CONFIG_SIFIVE_U', if_true: files('sifive_u.c')) | 
|  | riscv_ss.add(when: 'CONFIG_SPIKE', if_true: files('spike.c')) | 
|  | riscv_ss.add(when: 'CONFIG_MICROCHIP_PFSOC', if_true: files('microchip_pfsoc.c')) | 
|  | riscv_ss.add(when: 'CONFIG_ACPI', if_true: files('virt-acpi-build.c')) | 
|  |  | 
|  | hw_arch += {'riscv': riscv_ss} |