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Date:	Tue, 26 Jun 2007 15:59:18 -0400
From:	Jeremy Fitzhardinge <>
To:	Andi Kleen <>
CC:	Linux Kernel Mailing List <>
Subject: dma_mapping_ops for i386

I'm looking at adding dom0 support to the pv-ops kernel.  One of the 
obvious things we need is to support real device drivers, and the 
associated p->m translations for devices.

I'm thinking the cleanest thing to do is make x86-64's dma-mapping.h 
with its dma_mapping_ops common to i386 and x86-64, so we can hook the 
Xen translations in there.  Presumably we'll need to do this anyway to 
support VTd for 32-bit (but I don't know if that's a reasonable thing to 
do anyway).

What do you think?

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