Re: [PATCH v2 1/4] kernel/resource: Introduce managed SOFT RESERVED resources

Alison Schofield
2025-03-07T16:48:56Z

On Fri, Mar 07, 2025 at 05:56:25AM +0000, Zhijian Li (Fujitsu) wrote:
> Hello Fontenot,
>
> I hope this email finds you well.
>
> Thank you very much for this patch. We've encountered the same issue in our product,
> and your patch works.
>
> We do hope this issue will be resolved in the upstream kernel soon.
>

snip

>
>
> I noticed your earlier discussions about designing a new approach to solve this problem,
> which I'm pretty excited about. Do you have any idea when you might post the updated
> version? We'd love to help out with reviewing and testing..
>
> If you run into any roadblocks and need a hand, just let us know. we'd be delighted to help.
>
> As far as I know, this issue usually arises on Real CXL machines, but for ease of testing
> and validation, we modified QEMU to simulate the intersection of 'Soft Reserved' and
> the CXL region, which would aid in verification.

Hi Zhijian,

Wow - I want that! Can you share that QEMU branch? With QEMU cmdline too.

Thanks :)
Alison
>
>
> Thanks
> Zhijian