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Date: Wed, 09 Nov 2011 18:47:28 +0100
From: Paolo Bonzini <pbonzini@redhat.com>
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Subject: Re: [Qemu-devel] Summary of CD,
	DVD passthrough tests with -drive if=scsi
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To: Thomas Schmitt <scdbackup@gmx.net>
Cc: kwolf@redhat.com, stefanha@gmail.com, qemu-devel@nongnu.org

On 11/06/2011 12:26 PM, Thomas Schmitt wrote:
>      * DRIVE FREEZER
>      * GUEST KILLER
>        SEND CUE SHEET
>
>      * DRIVE FREEZER
>      * GUEST KILLER
>        SET STREAMING
>
>      * ANNOYING
>        READ DISC STRUCTURE
>
>      * SHOWSTOPPER
>        FORMAT UNIT

I fixed all of these; only these remain:

>
>      * UGLY
>      Failure to deliver progress of Blanking DVD-RW via REQUEST SENSE.
>        REQUEST SENSE
>        03 00 00 00 12 00
>        From drive: 18b
>        f0 00 00 00 00 00 00 0a 00 00 00 00 00 00 00 00 00 00
>             0 ms
>      TEST UNIT READY delivers the desired information.
>
>    DVD+R
>
>      * GUEST KILLER
>      * MEDIUM KILLER
>      Guest freezes, medium has unwritten open reserved track after
>        RESERVE TRACK
>        53 00 00 00 00 00 00 0f 30 00
>
>    Mode page 2A of emulated ATAPI DVD-ROM should have page length 0x14
>    like SCSI CD-ROM, rather than 0x12. (Just add two 0-bytes to its end
>    and adkust the size dependent fields.)
>
>    MODE SENSE(6) should be thrown out of ATAPI DVD-ROM emulation.
>    Its implementation is wrong. It is not specified in the ATAPI list
>    of MMC-2. MMC-5 prescribes to use MODE SENSE(10).

The bugs were simply that QEMU did not compute the length of the command 
payload correctly.

Paolo