Re: [SeaBIOS] [PATCH] mark VBE mapping as reserved in e820

[Kevin O'Connor]

On Sat, Jan 23, 2010 at 11:30:33PM +0200, Izik Eidus wrote:
> On Sat, 23 Jan 2010 15:37:12 -0500
> "Kevin O'Connor"  wrote:
> > It is not normal to add e820 entries for device memory.
>
> This is true for pci and isa hot plug devices, but how in this case we can tell
> the os not to map to this physical address pci devices?
>
> If the range doesnt reserved I dont see how windows wont try to end up mapping
> pci devices to there.

What is special about 0xe0000000 that the OS can't map pci devices
there?  Normal machines don't treat 0xe0000000 as special, why does
the VBE device require that?

-Kevin