[LinuxBIOS] Fwd: [issue50] put pgtbl after 1M

yhlu yinghailu at gmail.com
Wed Dec 7 09:47:05 CET 2005


I moved the pgtbl to the last 1M of CONFIG_LB_MEM_TOPK....

Please check it.


---------- Forwarded message ----------
From: Yinghai Lu <lxbios at openbios.org>
Date: Dec 7, 2005 12:43 AM
Subject: [issue50] put pgtbl after 1M
To: ollie at lanl.gov, rminnich at lanl.gov, stepan at openbios.org, yinghailu at gmail.com

New submission from Yinghai Lu <yinghailu at gmail.com>:

This one is needed for 8 way dual core with VGA support enabled.
The reason is every cpu page table will be 20k, and if there is 16 cpu will need
320k, it will push the stack and heap cross the 0xa0000, the region for vga font
buffer. TO use that need to set CONFIG_LB_MEM_TOPK in MB Options.lb
It also remove the hardcode 1M in clear_1m_ram.c to use CONFIG_LB_MEM_TOPK.


files: 1207_put_pgtbl_after_1m.diff
messages: 299
nosy: ollie, rminnich, stepan, yhlu
priority: urgent
status: chatting
title: put pgtbl after 1M

LinuxBIOS issue tracker <lxbios at openbios.org>
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