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Subject: Re: [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty
 logging in chain 4 memory access mode
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To: Blue Swirl <blauwirbel@gmail.com>
Cc: Anthony Liguori <aliguori@us.ibm.com>, Jan Kiszka <jan.kiszka@siemens.com>, qemu-devel <qemu-devel@nongnu.org>, Alexander Graf <agraf@suse.de>, =?UTF-8?B?QW5kcmVhcyBGw6RyYmVy?= <andreas.faerber@web.de>, Gerd Hoffmann <kraxel@redhat.com>

On 09/13/2011 10:39 PM, Blue Swirl wrote:
> >
> >  Here is the problem: Both the vram and the ISA range get mapped into
> >  system address space, but the former eclipses the latter as it shows up
> >  earlier in the list and has the same priority. This picture changes with
> >  the chain-4 alias which has prio 2, thus maps over the vram.
> >
> >  It looks to me like the ISA address space is either misplaced at
> >  0x80000000 or is not supposed to be mapped at all on PPC. Comments?
>
> Since there is no PCI-ISA bridge, ISA address space shouldn't exist.

Where does the vga device sit then?

-- 
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.