Re: [Qemu-devel] [PATCH v3 5/6] vga: Use linear mapping + dirty logging in chain 4 memory access mode

[Avi Kivity]

On 09/19/2011 12:36 PM, Alexander Graf wrote:
> >
> >>    80880000-808fffff : macio
> >>      00060000-0007ffff : macio-nvram
> >>      00020000-00020fff : pmac-ide
> >>      00016000-00017fff : cuda
> >>      00013000-0001303f : escc-bar
> >>      00008000-00008fff : dbdma
> >>      00000000-00000fff : heathrow-pic
> >>    80800000-8080ffff : vga.rom
> >>    80000000-807fffff : vga.vram
> >>    800a0000-800bffff : vga-lowmem
>
> Well what I don't understand is how this corresponds to the lowmem region here. 
> If I simply #if 0 the chain4 code out, everything works as expected.

It's at the wrong address.  It should be at 000a0000, but not be visible 
since it's outside the pci hole.  IIUC.

> >
> >>  Not sure - I still haven't understood how the memory api works.
> >>
> >
> >  Thanks for reminding me to write up slides for tomorrow's code overview 
> session.  I'll start with a general explanation.
>
> What code overview session?

At the usual kvm weekly time & place, I'll do a walkthrough of the 
memory API theory and practice.

--
error compiling committee.c: too many arguments to function