Re: [stable] ata_piix: reenable MS Virtual PC guests

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On Sun, Mar 03, 2013 at 12:04:39AM +0000, Ben Hutchings wrote:
> This should probably go into 3.4.y and 3.5.7.y:
> 
> From: Olaf Hering <olaf@xxxxxxxxx>
> Date: Tue, 18 Sep 2012 17:48:01 +0200
> Subject: ata_piix: reenable MS Virtual PC guests
> 
> commit d9904344fc4052fbe7e4dc137eba0dcdadf326bd upstream.
> 
> An earlier commit cd006086fa5d91414d8ff9ff2b78fbb593878e3c ("ata_piix:
> defer disks to the Hyper-V drivers by default") broke MS Virtual PC
> guests. Hyper-V guests and Virtual PC guests have nearly identical DMI
> info. As a result the driver does currently ignore the emulated hardware
> in Virtual PC guests and defers the handling to hv_blkvsc. Since Virtual
> PC does not offer paravirtualized drivers no disks will be found in the
> guest.
> 
> -- 
> Ben Hutchings
> Computers are not intelligent.	They only think they are.

Thanks, I'm queueing it to 3.5 tree.

Cheers,
--
Luis
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