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Re: [Xen-devel] Re: [Qemu-devel] [PATCH 5/7] xen: add block device backe

from [Gerd Hoffmann] [Permanent Link][Original]
To: Samuel Thibault <samuel.thibault@xxxxxxxxxxxxx>, Gerd Hoffmann <kraxel@xxxxxxxxxx>, Blue Swirl <blauwirbel@xxxxxxxxx>, xen-devel@xxxxxxxxxxxxxxxxxxx, qemu-devel@xxxxxxxxxx
Subject: Re: [Xen-devel] Re: [Qemu-devel] [PATCH 5/7] xen: add block device backend driver.
From: Gerd Hoffmann <kraxel@xxxxxxxxxx>
Date: Tue, 05 Aug 2008 13:07:52 +0200
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Samuel Thibault wrote:
> Gerd Hoffmann, le Tue 05 Aug 2008 08:52:26 +0200, a écrit :
>>> There is: the info node, which is an OR of the
>>> VDISK_CDROM/REMOVABLE/READONLY flags.
>> Who sets that node?  Backend driver or xend?
> 
> backend, see linux/driver/xen/blkback/xenbus.c 

Hmm, ok.

mode="r" (in backend directory) means readonly, ok.
device-type="cdrom" (backend dir too) means cdrom, ok.

fixed up these.

removable can't be indicated to the backend via xenstore?

ignoring that for now.

btw: Looks like blktap doesn't set any VDISK_* flags?

cheers,
  Gerd

-- 
http://kraxel.fedorapeople.org/xenner/

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