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Re: [Qemu-devel] Emulation of TCG OPAL self-encrypting drive

From: John Snow
Subject: Re: [Qemu-devel] Emulation of TCG OPAL self-encrypting drive
Date: Thu, 24 Jan 2019 12:41:21 -0500
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:60.0) Gecko/20100101 Thunderbird/60.4.0

On 1/24/19 5:24 AM, David Kozub wrote:
> libata seems to support SCSI / ATA Translation, including ATA PASS
> THROUGH (12) and ATA PASS THROUGH (16). Is this not sufficient? (The
> implementation can be seen in ata_scsi_pass_thru.)

Oh, I missed this! Thanks for pointing it out. I'll take a look and see
if I can recommend where to start making incisions in QEMU.

>> ...but you could create an emulated SCSI disk and then pass those SCSI
>> commands to an ATA device -- achieving a *kind* of pass through, but I
>> don't know if that's helpful to your project. If so, I'd start looking
>> at the scsi disk sources instead of the ATA sources.
> Perhaps. Or maybe fogetting about pass-through and really just
> implementing OPAL in QEMU.

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