Re: [PATCH] i386: For debugging, make the initial page table setup less forgiving.

Jeremy Fitzhardinge
2007-04-13T22:27:14Z

Zachary Amsden wrote:
> H. Peter Anvin wrote:
>> + /*
>> + * End condition: we must map up to and including
>> + * INIT_MAP_BEYOND_END bytes beyond the end of our
>> + * own page tables; 0x1000 is the size of the page
>> + * table were about to write, and +0x007 is the
>> + * attribute bits.
>> + */
>> + leal (INIT_MAP_BEYOND_END+0x1000+0x007)(%edi),%ebp
>>
>
> hrmm? Shouldn't that still be INIT_MAP_BEYOND_END+0x0007? Seems you
> are mapping 4M more than you need.

No, that's an actual byte address of the end of the mapped area, not a pfn.

J