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SubjectRe: [patch] Ignore MCFG if the mmconfig area isn't reserved in thee820 table
On Fri, Mar 24, 2006 at 04:42:17PM +0100, Arjan van de Ven wrote:
> Andi Kleen wrote:
> > In theory they should be the same. What do you think is different?
>
> in practice the x86-64 version returns "success" if there is one byte in the entire
> memory range that complies with the requested type, even if the rest of the range is
> of another type. What the ideal is for the purpose here is "is the entire range reserved",
> but for now I'll settle for "is the start address reserved".
>
> (and yes you can express the "is the start address reserved" as a question to the current function for
> a 1 byte range, I probably should do that I suppose)

or why not check

if (type == ei->type && start >= ei->addr && end <= (ei->addr + ei->size))
return 1;
will this make the range check check stricter?
--
Cheers,
Ashok Raj
- Open Source Technology Center
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