Re: [PATCH v4 9/9] dax/hmem: Reintroduce Soft Reserved ranges back into the iomem tree

Koralahalli Channabasappa, Smita
2025-12-12T22:14:25Z

On 12/3/2025 4:54 PM, dan.j.williams@intel.com wrote:
> Smita Koralahalli wrote:
>> Reworked from a patch by Alison Schofield <alison.schofield@intel.com>
>>
>> Reintroduce Soft Reserved range into the iomem_resource tree for HMEM
>> to consume.
>>
>> This restores visibility in /proc/iomem for ranges actively in use, while
>> avoiding the early-boot conflicts that occurred when Soft Reserved was
>> published into iomem before CXL window and region discovery.
>>
>> Link: https://lore.kernel.org/linux-cxl/29312c0765224ae76862d59a17748c8188fb95f1.1692638817.git.alison.schofield@intel.com/
>> Co-developed-by: Alison Schofield <alison.schofield@intel.com>
>> Signed-off-by: Alison Schofield <alison.schofield@intel.com>
>> Co-developed-by: Zhijian Li <lizhijian@fujitsu.com>
>> Signed-off-by: Zhijian Li <lizhijian@fujitsu.com>
>> Signed-off-by: Smita Koralahalli <Smita.KoralahalliChannabasappa@amd.com>
>> Reviewed-by: Dave Jiang <dave.jiang@intel.com>
>> Reviewed-by: Jonathan Cameron <jonathan.cameron@huawei.com>
>
> Looks good to me:
>
> Reviewed-by: Dan Williams <dan.j.williams@intel.com>
>
> Thanks for all the work on this Smita, and Alison too, you have flushed
> out many issues and helped me through my blind spots.

Thanks for the review!

I will get started with working on v5.

Thanks
Smita