Re: [RFC v2 PATCH] reserve_mem: add support for static memory

[Catalin Marinas]

Hi Shyam,

Adding Lorenzo, Hanjun, Sudeep.

On Tue, Jun 30, 2026 at 10:09:11AM -0700, Shyam Saini wrote:
> Following up on this, As Mike pointed that reserve_mem is best effort
> reservation mechanism, so what is the recommended reliable Linux
> mechanism, if any, to reserve a predetermined memory range during
> early boot on ARM64/ACPI platforms for warm boot scenarios? KHO is
> one option, but I'm specifically looking for a solution that preserves
> the region across warm reboots.

If you need ramoops-like support, I think ACPI ERST is a better fit and
we don't need any memory reservation tricks. I'll let the arm ACPI
maintainers comment further.

-- 
Catalin