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Re: [Qemu-devel] [PATCH v6 6/8] virtio-scsi: use virtio wrappers to acce

From: Peter Maydell
Subject: Re: [Qemu-devel] [PATCH v6 6/8] virtio-scsi: use virtio wrappers to access headers
Date: Fri, 28 Mar 2014 17:43:07 +0000

On 28 March 2014 17:37, Greg Kurz <address@hidden> wrote:
> And while we are at it, since we pass &address_space_memory to all
> occurences of virtio_*_phys() and I don't see why we would change
> that, maybe we can also move that into the helpers. Thoughts ?

In the longer term I'm hoping that references to
&address_space_memory go away -- we should be modelling
separate address spaces per CPU and per every other
thing that can act as a DMA master (ie issue memory
transactions). I'm not sure exactly how virtio ought to
work since these accesses directly to memory are a total
hack, but probably we will end up setting the virtio
device up and handing it an AddressSpace* that it should use.

-- PMM

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