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Date:      Wed, 28 Jun 95 15:32:38 EDT
From:      L Jonas Olsson <ljo@pris.EEAP.CWRU.Edu>
To:        freebsd-hackers@freefall.cdrom.com
Subject:   Memory Hole and VM (ISA linear frame buffer)
Message-ID:  <9506281932.AA04863@pris.EEAP.CWRU.Edu>

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 If it is simple, I'd like to use an older frame grabber (DT2851)
using the "linear frame buffer" option on an Intel Plato motherboard.

 I'm already using this board with FreeBSD, but currently I only have
12 MB of RAM and the card occupies 512kB at 15.5MB. Now I want to have
more memory and I will end with a memory map:

0    - 1  MB low RAM
1    - 15 MB extended RAM
15 - 15.5 MB nothing
15.5 - 16 MB frame buffer
16MB - 24 MB extended RAM

Is there any easy way to tell FreeBSD's VM system to not use the 1MB
between 15 and 16MB?

Jonas



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