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Re: [Qemu-ppc] [Qemu-devel] [PATCH v2 05/10] raven: set a correct PCI I/

From: Peter Maydell
Subject: Re: [Qemu-ppc] [Qemu-devel] [PATCH v2 05/10] raven: set a correct PCI I/O memory region
Date: Wed, 4 Sep 2013 08:22:24 +0100

On 4 September 2013 07:01, Paolo Bonzini <address@hidden> wrote:
> Not using address_space_io is fine as well, but it's a separate change
> and I doubt it is a good idea to do it for a single target; if you do it
> for all non-x86 PCI bridges, and move the initialization of
> address_space_io to target-i386, that's a different story of course.

What's the problem with doing it for a single target? That's
what I did for versatilepb. I think any CPU that doesn't have
inb/outb type instructions (x86 does, and I think also alpha
but I forget) should not be using address_space_io; but the
easiest way to get there is to convert the PCI bridges one at
a time as we have maintenance effort to do so.

-- PMM

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