On 09/14/2011 11:27 AM, Alexander Graf wrote:
On 14.09.2011, at 10:24, Jan Kiszka wrote:
> On 2011-09-14 10:22, Avi Kivity wrote:
>> On 09/14/2011 11:20 AM, Jan Kiszka wrote:
>>>>
>>>> Anyway PCI supports the vga region at 0xa0000-0xc0000. Where is it
>>>> supposed to be mapped?
>>>
>>> ...but not all PCI bridges make use of this feature / forward legacy
>>> requests.
>>>
>>
>> Then this should be fixed in the bridge?
>
> Yes, it's a PPC bug.
So how does the bridge not forward it then?
I expect that currently vga adds the region to pci_address_space(). We
need to create a pci_address_space_vga() function that returns a region
for vga to use. Then add or remove the region to pci_address_space(),
within the bridge code, depending on whether the bridge forwards vga
accesses or not.
(assuming I understood the problem correctly - not sure)
--
error compiling committee.c: too many arguments to function
