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Date: Mon, 05 Sep 2011 08:36:06 +0300
From: Avi Kivity <avi@redhat.com>
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Subject: Re: [Qemu-devel] [PATCH] pci: add standard bridge device
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To: "Michael S. Tsirkin" <mst@redhat.com>
Cc: Kevin Wolf <kwolf@redhat.com>, Isaku Yamahata <yamahata@valinux.co.jp>, qemu-devel@nongnu.org

On 09/04/2011 08:03 PM, Michael S. Tsirkin wrote:
> On Sun, Sep 04, 2011 at 07:22:54PM +0300, Avi Kivity wrote:
> >  On 09/04/2011 07:19 PM, Michael S. Tsirkin wrote:
> >  >>   But isn't it needed?  Otherwise why don't vga accesses
> >  >>   alias with a virtio device at 0xc3c0?
> >  >
> >  >It really depends on the device I think.
> >  >
> >
> >  It's probably the bus.  ISA may not decode A10-15, but if the
> >  pci/isa bridge does, then it doesn't matter.
>
> The bridge has a 16 bit decode bit. I'm guessing we should
> make BIOS enable that.
>

I'm guessing you're right.

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