[SeaBIOS] [PATCH 3/3] Changes related to secondary buses and 64bit regions

[Alexey Korolev]

On 30/12/11 05:21, Michael S. Tsirkin wrote:
> On Thu, Dec 29, 2011 at 06:41:36PM +1300, Alexey Korolev wrote:
>>> Can't figure this out. What does this do?
>> Bios will panic if it founds prefmem BARs in both 32bit and 64bit areas.
> That's not good, it's a legal configuration.
>
To be more complete : Bios will panic if it founds prefmem BARs in both 
32bit and 64bit areas
on the same secondary Bus.
I agree about that this limitation is too strict at the moment.

To answer if it is a legal or not we need to have a look how real BIOS 
would behave in a such
scenario. Unfortunately I have no chance to have this configuration on 
hand. If you have (may
have) this I would appreciate if you let us know how the Bios will behave?