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Date: Wed, 4 Nov 2009 14:19:19 +0200
From: "Michael S. Tsirkin" <mst@redhat.com>
Subject: Re: [Qemu-devel] Re: [PATCH V6 17/32] pci: 64bit bar support.
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To: Isaku Yamahata <yamahata@valinux.co.jp>
Cc: Avi Kivity <avi@redhat.com>, qemu-devel@nongnu.org

On Wed, Nov 04, 2009 at 03:20:02PM +0900, Isaku Yamahata wrote:
> On Tue, Nov 03, 2009 at 04:09:16PM +0200, Michael S. Tsirkin wrote:
> > > > Long term, we should fix all devices and *then* they can claim 64 bit
> > > > support always.  As a nice side effect, we'll be able to avoid
> > > > rebuilding devices.
> > > 
> > > Are you claiming that (PCI) devices emulation shouldn't depend on
> > > target_phys_addr_t? That sounds a good idea.
> > 
> > Yes. Maybe we can stop devices from mapping memory, have pci
> > core do it for them.
> 
> IIRC Avi proposed such a patch,

link?

> but it didn't get merged.

I wonder why - currently mapping is done by devices but unmapping is
done by pci core. That's been always bothering me.


> -- 
> yamahata