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Re: [kvm-devel] [Qemu-devel] Re: [PATCH 1/6] Use correct types to enable

From: Paul Brook
Subject: Re: [kvm-devel] [Qemu-devel] Re: [PATCH 1/6] Use correct types to enable > 2G support
Date: Fri, 1 Feb 2008 21:33:07 +0000
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> virtio could still be made to work with map cache.  You would just have
> to change it to be able to map more than one page contiguously.  As I
> mentioned though, it just starts getting ugly.

That's why you should be using the cpu_physical_memory_rw routines :-)

Anything that assume large linear accesses (Currently only some of the 
embedded LCD controllers) is going to break as soon as you start introducing 
IOMMUs. There have been several threads on this list about having a sane DMA 


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