Re: SATA controller passthrough - option rom

From: Kaushik Barde <kaushik.barde@huawei.com>
To: 'ivo' <shandivo@gmail.com>, xen-devel@lists.xen.org
Subject: Re: SATA controller passthrough - option rom
Date: Tue, 10 Jul 2012 11:17:39 -0700	[thread overview]
Message-ID: <46466.4769395769$1341944511@news.gmane.org> (raw)
In-Reply-To: <CACA08Dy0ftFeXhFci-owdgTun4rKcUu1_bacHK_-vX8eTVzgYA@mail.gmail.com>

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If you can patch-up qemu ACPI (dsdt), & virtual BIOS to use controller
information..

Kaushik C. Barde
US Software Lab huawei_logo

Address: Huawei Technologies Ltd.
2330 Central Expressway
Santa Clara, CA, 95050, USA
Tel: 408-330-4437
www.huawei.com
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From: xen-devel-bounces@lists.xen.org
[mailto:xen-devel-bounces@lists.xen.org] On Behalf Of ivo
Sent: Tuesday, July 10, 2012 10:32 AM
To: xen-devel@lists.xen.org
Subject: [Xen-devel] SATA controller passthrough - option rom

I'm using xen-unstable, and I've successfully made a passthrough of an intel
storage controller to an HVM domU, binding with pciback.

00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset
Family SATA AHCI Controller (rev 05)

I can access the array from within Windows by installing Intel Rapide
Storage Drivers, and everything works as it should.

I only have a small problem, I would like to boot the guest OS directly from
the controller, but of course since there's no "option rom" loaded in the
qemu bios, it doesn't work, because the boot manager can't access the array
without drivers loaded.

I was wondering, is there any way to let qemu load the option rom of the
controller so I can boot from it? 

Is there any other storage controller which the option rom get
"passthroughed" too? I hope I've been clear enough.

Thanks, Ivo

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