* [ECOS] __pci_window
@ 2004-01-02 20:16 Leandro Fanzone
2004-01-05 12:46 ` Andrew Lunn
0 siblings, 1 reply; 2+ messages in thread
From: Leandro Fanzone @ 2004-01-02 20:16 UTC (permalink / raw)
To: ecos-discuss
I'm trying to use a 386 board with a very limited amount of RAM. I was
playing around with the memory map, and I found out that the label
called __pci_window takes about 400k in the GRUB target. Can someone
tell me what is that for? It really needs to reserve that much amount of
memory? I'm thinking on using 2MB RAM on board, and those 400k are just
too much. Also I noticed that GRUB will load the code above 1MB, which
worries me too. Is there a way to use those 640k that are below? If I
modify the memory map to spread the program below, GRUB will complain
saying that loading below 1MB is not supported.
Thank you in advance,
Leandro Fanzone.
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^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [ECOS] __pci_window
2004-01-02 20:16 [ECOS] __pci_window Leandro Fanzone
@ 2004-01-05 12:46 ` Andrew Lunn
0 siblings, 0 replies; 2+ messages in thread
From: Andrew Lunn @ 2004-01-05 12:46 UTC (permalink / raw)
To: Leandro Fanzone; +Cc: eCos Disuss
On Fri, Jan 02, 2004 at 05:14:07PM -0300, Leandro Fanzone wrote:
> I'm trying to use a 386 board with a very limited amount of RAM. I was
> playing around with the memory map, and I found out that the label
> called __pci_window takes about 400k in the GRUB target. Can someone
> tell me what is that for?
This is memory which is shared between the processor and PCI devices.
If you don't have any PCI devices, you can probably remove it.
Andrew
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