From mboxrd@z Thu Jan  1 00:00:00 1970
From: Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>
Subject: Re: help: dma_map_single() returning null in dom0
Date: Wed, 13 Aug 2014 08:50:31 -0400
Message-ID: <20140813125031.GA15045@laptop.dumpdata.com>
References: <CAGwOJnxzmURH0X_6B7MDRNMKZRpeXOxob+CQW0dK=t0LRp88mg@mail.gmail.com>
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To: Gary M <garym@oedata.com>
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On Tue, Aug 12, 2014 at 05:09:22PM -0600, Gary M wrote:
> Hi,
> 
> I'm in a gap in my understanding need some help..
> 
> I'm porting a driver from bare metal to Dom0, xen 4.3, debian jessie kernel
> 3.14
> 
> I do a kmalloc and get a null returned dma_map_single().

Could paste your code please?
> Is there something I'm not setting correctly in dom0 kernel line ?
> Does the dma_map_single() call work in dom0 ?

Yes.
> 
> cheers
> -g

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