[RFC PATCH v2 00/13] nommu UML

[Damien Le Moal]

On 11/22/24 21:38, Christoph Hellwig wrote:
> On Fri, Nov 22, 2024 at 12:25:19PM +0000, Lorenzo Stoakes wrote:
>> It's an ongoing maintenance burden, discussions about seeing whether it's
>> feasible to remove it have been had in multiple places.
>>
>> I have personally run into issues having to accommodate it on numerous
>> occasions, as have many others.
>>
>> I'd be interested to know which products specifically ship this and also
>> require tip kernel, perhaps this is just a case of my not being aware of
>> certain architectures?
> 
> I can't tell you the products I know on commercial basis.  Most of them
> are arm based, but I also know about at least one RISC-V one.    They
> all used the latest long term stable at the time of release and tend
> to stay on that.  And the involved vendors keep spinning out new versions
> of these every few years.

To add to this, we had a discussion at the RISC-V MC at plumbers last year (I
think it was) about removing the K210 RISC-V SoC and associated RISC-V NOMMU
support. But several people complained about that because several FPGAs
implementing RISC-V cores are NOMMU (for obvious reasons for the FPGA case). So
NOMMU is being used out there.

-- 
Damien Le Moal
Western Digital Research