From: Jeff Garzik <jgarzik@pobox.com>
To: Olaf Hering <olaf@aepfle.de>
Cc: linux-ide@vger.kernel.org, linux-kernel@vger.kernel.org,
KY Srinivasan <kys@microsoft.com>
Subject: Re: [PATCH] ata_piix: reenable MS Virtual PC guests
Date: Wed, 28 Nov 2012 12:44:07 -0500 [thread overview]
Message-ID: <50B64D67.3080202@pobox.com> (raw)
In-Reply-To: <1347983281-15422-1-git-send-email-olaf@aepfle.de>
On 09/18/2012 11:48 AM, Olaf Hering wrote:
> 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.
>
> One difference in the DMI info is the product version. This patch adds a
> match for MS Virtual PC 2007 and "unignores" the emulated hardware.
>
> This was reported for openSuSE 12.1 in bugzilla:
> https://bugzilla.novell.com/show_bug.cgi?id=737532
>
> Here is a detailed list of DMI info from example guests:
>
> hwinfo --bios:
>
> virtual pc guest:
>
> System Info: #1
> Manufacturer: "Microsoft Corporation"
> Product: "Virtual Machine"
> Version: "VS2005R2"
> Serial: "3178-9905-1533-4840-9282-0569-59"
> UUID: undefined, but settable
> Wake-up: 0x06 (Power Switch)
> Board Info: #2
> Manufacturer: "Microsoft Corporation"
> Product: "Virtual Machine"
> Version: "5.0"
> Serial: "3178-9905-1533-4840-9282-0569-59"
> Chassis Info: #3
> Manufacturer: "Microsoft Corporation"
> Version: "5.0"
> Serial: "3178-9905-1533-4840-9282-0569-59"
> Asset Tag: "7188-3705-6309-9738-9645-0364-00"
> Type: 0x03 (Desktop)
> Bootup State: 0x03 (Safe)
> Power Supply State: 0x03 (Safe)
> Thermal State: 0x01 (Other)
> Security Status: 0x01 (Other)
>
> win2k8 guest:
>
> System Info: #1
> Manufacturer: "Microsoft Corporation"
> Product: "Virtual Machine"
> Version: "7.0"
> Serial: "9106-3420-9819-5495-1514-2075-48"
> UUID: undefined, but settable
> Wake-up: 0x06 (Power Switch)
> Board Info: #2
> Manufacturer: "Microsoft Corporation"
> Product: "Virtual Machine"
> Version: "7.0"
> Serial: "9106-3420-9819-5495-1514-2075-48"
> Chassis Info: #3
> Manufacturer: "Microsoft Corporation"
> Version: "7.0"
> Serial: "9106-3420-9819-5495-1514-2075-48"
> Asset Tag: "7076-9522-6699-1042-9501-1785-77"
> Type: 0x03 (Desktop)
> Bootup State: 0x03 (Safe)
> Power Supply State: 0x03 (Safe)
> Thermal State: 0x01 (Other)
> Security Status: 0x01 (Other)
>
> win2k12 guest:
>
> System Info: #1
> Manufacturer: "Microsoft Corporation"
> Product: "Virtual Machine"
> Version: "7.0"
> Serial: "8179-1954-0187-0085-3868-2270-14"
> UUID: undefined, but settable
> Wake-up: 0x06 (Power Switch)
> Board Info: #2
> Manufacturer: "Microsoft Corporation"
> Product: "Virtual Machine"
> Version: "7.0"
> Serial: "8179-1954-0187-0085-3868-2270-14"
> Chassis Info: #3
> Manufacturer: "Microsoft Corporation"
> Version: "7.0"
> Serial: "8179-1954-0187-0085-3868-2270-14"
> Asset Tag: "8374-0485-4557-6331-0620-5845-25"
> Type: 0x03 (Desktop)
> Bootup State: 0x03 (Safe)
> Power Supply State: 0x03 (Safe)
> Thermal State: 0x01 (Other)
> Security Status: 0x01 (Other)
>
> Signed-off-by: Olaf Hering <olaf@aepfle.de>
applied. Apologies for missing this one. It was accidentally shifting
into the low-priority pile.
prev parent reply other threads:[~2012-11-28 17:44 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-09-18 15:48 Olaf Hering
2012-11-28 17:44 ` Jeff Garzik [this message]
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