[SeaBIOS] [PATCH 3/3] Changes related to secondary buses and 64bit regions
alexey.korolev at endace.com
Fri Dec 30 06:10:13 CET 2011
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. But this
is just a limitation, there are
plenty of them in Seabios.
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?
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