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Re: [Qemu-block] [Qemu-devel] [PATCH 3/3] qemu-iotests: 140: use virtio-

From: Sascha Silbe
Subject: Re: [Qemu-block] [Qemu-devel] [PATCH 3/3] qemu-iotests: 140: use virtio-scsi instead of IDE
Date: Wed, 10 Feb 2016 20:26:42 +0100
User-agent: Notmuch/0.19+1~g6b3e223 (http://notmuchmail.org) Emacs/24.3.1 (x86_64-pc-linux-gnu)

Dear Max,

Max Reitz <address@hidden> writes:

>> -_launch_qemu -drive 
>> if=ide,media=cdrom,id=drv,file="$TEST_IMG",format=$IMGFMT \
>> -    2> >(_filter_nbd)
>> +_launch_qemu -drive 
>> if=none,media=cdrom,id=drv,file="$TEST_IMG",format=$IMGFMT \
>> +    -device virtio-scsi -device scsi-cd,drive=drv 2> >(_filter_nbd)
> Why not just omit the device (and the media=cdrom along with it, keeping
> if=none)? This will change the reference output because there is no
> longer any tray to be moved, but this will still test what it's supposed to.
> (This may sound hypocritical coming from me, because I wrote this test
> so I could have just done so in the first place; I guess I just didn't
> realize that 'eject' works on device-less drives, too.)

Is this supposed to work? I.e. can we rely on it? If so, that would
certainly be the easier route for this particular test. Test coverage
should be unaffected as 139 already tests ejection (using virtio, unlike
118 which is PC-only).

The aliases patch has a value of its own, but that's a separate

Softwareentwicklung Sascha Silbe, Niederhofenstra├če 5/1, 71229 Leonberg
USt-IdNr. DE281696641

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