-----Original Message----- From: ron minnich [mailto:rminnich@gmail.com] Sent: Monday, November 10, 2008 3:48 PM To: Myles Watson Cc: Coreboot Subject: Re: [coreboot] Resource allocation
In theory split resources can happen. In practice it never has. The only real split is legacy IO/mem/vga. They are always supported on every chipset to date by a 'decode legacy range' bit.
So, in practice, the extensive capabilities of the resource stuff have not, as far as I know, every really been used. It always comes down to'contiguous memory range' 'contiguous prefmem range' 'contiguous IO range'
Thanks Ron. After reading your answer I thought about the fact that there is only one BAR on a bridge for each type of resource, and the split resource idea didn't make as much sense.
Myles