Re: [PATCH v1] xen/riscv: add initialization support for virtual SBI UART (vSBI UART)

[Jan Beulich <jbeulich@xxxxxxxx>]

On 21.05.2025 13:40, Oleksii Kurochko wrote:
> On 5/15/25 12:08 PM, Jan Beulich wrote:
>> On 12.05.2025 17:55, Oleksii Kurochko wrote:
>>> --- a/xen/arch/riscv/Makefile
>>> +++ b/xen/arch/riscv/Makefile
>>> @@ -1,5 +1,6 @@
>>>   obj-y += aplic.o
>>>   obj-y += cpufeature.o
>>> +obj-y += dom0less-build.o
>> Arm uses
>>
>> obj-$(CONFIG_DOM0LESS_BOOT) += dom0less-build.init.o
>>
>> Why the two differences?
> 
> Missed that. I have to understand why Arm uses *.init.o, but likely I should 
> do the same for RISC-V.

There's likely nothing Arm-specific in this. When all functions in a file
are __init and all data is __initdata / __initconst, we prefer to move
the remaining data (string literals being the most prominent example) to
.init.* as well. That's (basically) what the *.o -> *.init.o build step
does.

Jan