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Re: [Qemu-devel] [PATCH 0/15][RFC] New PCI interfaces

From: Blue Swirl
Subject: Re: [Qemu-devel] [PATCH 0/15][RFC] New PCI interfaces
Date: Wed, 10 Feb 2010 20:34:45 +0200

On Wed, Feb 10, 2010 at 12:01 AM, Anthony Liguori <address@hidden> wrote:
> This is a work in progress that I wanted to share giving some of the 
> discussions
> around rwhandlers.  The idea is to make PCI devices have a common set of
> functions to interact with the CPU that is driven entirely through the PCI 
> bus.
> I've tested the network card conversions, but have not yet tested the other
> bits.

By itself, the patches look OK. But given that the conclusion of the
generic DMA discussion was to aim for mapping approach (in order to
prepare for zero copy DMA), I wonder how the patches fit to the larger
picture. Perhaps instead of pci specific functions, a more generic
memory object with read and write methods could be introduced, which
would be more useful in the longer term?

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