Re: [PATCH 4/4] x86/efi: Allocate a trampoline if needed in efi_free_boot_services()

[H. Peter Anvin]

On 07/26/16 15:55, Andy Lutomirski wrote:
> +             /*
> +              * Nasty quirk: if all sub-1MB memory is used for boot
> +              * services, we can get here without having allocated the
> +              * real mode trampoline.  It's too late to hand boot services
> +              * memory back to the memblock allocator, so instead
> +              * try to reclaim a single page if needed.
> +              *

This comment makes no sense.  Nowhere is there a dependency on a single
page, and this refers to allocation, not reclaim...

        -hpa