linux-kernel - Re: [PATCH 0/2] Hyper-V disk support V3

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Message-ID: <20120416122634.7d1357e1@ultron>
Date:	Mon, 16 Apr 2012 12:26:34 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Andy Whitcroft <apw@...onical.com>
Cc:	Jeff Garzik <jgarzik@...ox.com>, linux-ide@...r.kernel.org,
	linux-kernel@...r.kernel.org,
	"K. Y. Srinivasan" <kys@...rosoft.com>,
	Mike Sterling <Mike.Sterling@...rosoft.com>
Subject: Re: [PATCH 0/2] Hyper-V disk support V3

On Mon, 16 Apr 2012 12:20:27 +0100
Andy Whitcroft <apw@...onical.com> wrote:

> Add support for ignoring disks devices on specific host controllers to
> libata.  Use this support to trigger us to ignore Hyper-V disk devices
> on the emulated SATA device based on the system DMI information.
> 
> Jeff, I believe the first patch is what you had in mind in your comments.
> Alan, the piix sadly has no subvendor/subdevice identifiers at all

So its 0x0000,0x0000 ?

> though we are able to detect the platform from the DMI information,
> this any better?

What happens if you have a PIIX device which is being passed through from
the underlying hardware or will hyper-v never support pass through ?

Alan
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