[PATCH v6 10/14] x86/setup: use memblock_reserve_kern for memory used by kernel

Dave Hansen dave.hansen at intel.com
Mon Apr 28 15:15:52 PDT 2025


On 4/10/25 22:37, Changyuan Lyu wrote:
> From: "Mike Rapoport (Microsoft)" <rppt at kernel.org>
> 
> memblock_reserve() does not distinguish memory used by firmware from memory
> used by kernel.
> 
> The distinction is nice to have for accounting of early memory allocations
> and reservations, but it is essential for kexec handover (kho) to know how
> much memory kernel consumes during boot.
> 
> Use memblock_reserve_kern() to reserve kernel memory, such as kernel image,
> initrd and setup data.

Acked-by: Dave Hansen <dave.hansen at linux.intel.com>



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