Re: [PATCH] x86: make sure wakeup code is below 1M -v2

[Yinghai Lu <yinghai@kernel.org>]

ykzhao wrote:
> On Wed, 2009-11-11 at 10:27 +0800, Yinghai Lu wrote:
>> try to find_e820_area/reserve_early, and call acpi_reserve_memory early
>>
>> to get area is below 1M
>>
>> -v2: change function name to acpi_reserve_wakeup_memory according to Rafael
> It seems that the function of find_e820_area is called in several
> places.
>    >Initmem_init: bootmap = find_e820_area(0, end_pfn<<PAGE_SHIFT,
> bootmap_size, PAGE_SIZE);
>    
> If we also call it in the acpi_reserve_wakeup_memory, do we get the same
> base address as that obtained in initmem_init?

no. find_e820_area will check the reserve res array that could be updated by reserve_early.

YH