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Re: [Xen-devel] [RFC] Virtual disk configuration, PV vs. emulated, backw

from [Jeremy Fitzhardinge] [Permanent Link][Original]
To: Ian Jackson <Ian.Jackson@xxxxxxxxxxxxx>
Subject: Re: [Xen-devel] [RFC] Virtual disk configuration, PV vs. emulated, backward compatibility etc
From: Jeremy Fitzhardinge <jeremy@xxxxxxxx>
Date: Wed, 28 Jul 2010 09:45:18 -0700
Cc: xen-devel <xen-devel@xxxxxxxxxxxxxxxxxxx>, Ian Campbell <Ian.Campbell@xxxxxxxxxx>
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 On 07/28/2010 09:05 AM, Ian Jackson wrote:

For Linux HVM guests using PV-on-HVM drivers, users are recommended to
supply as few hd* devices as possible and use pure xvd* devices for
the rest.  Modern PV-on-HVM drivers will map the hd* devices to
/dev/xvdHDa etc.
I think we've decided to make blkfront register pv versions of emulated devices as hdX/sdX rather than using xvdHD. We don't do this in pv domains. 

    J

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