Re: [Xen-devel] How to use the vTPM backend driver in the pv-ops kernel

["Fioravante, Matthew E." <Matthew.Fioravante@xxxxxxxxxx>]

No, the vtpm manager is implemented in mini-os and mini-os not has a driver for 
direct access to the physical tpm.
dom0 no longer takes any part of the vtpm communication paths.
________________________________________
From: Pasi Kärkkäinen [pasik@xxxxxx]
Sent: Thursday, December 27, 2012 12:03 PM
To: Fioravante, Matthew E.
Cc: gavin; xen-users@xxxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxx
Subject: Re: [Xen-devel] How to use the vTPM backend driver in the pv-ops kernel

On Thu, Dec 27, 2012 at 10:27:33AM -0500, Fioravante, Matthew E. wrote:
> The frontend driver is currently being ported to the latest kernel. You can
> find the patch cross listed here as well as the linux kernel mailing list.
>
> I have no plans to port the backend driver. If you need it you'll have to get 
> it from the 2.6.18
> kernel and port it yourself.
>

Hmm.. are you still using 2.6.18 kernel in dom0 yourself?

-- Pasi

> ________________________________________
> From: xen-devel-bounces@xxxxxxxxxxxxx [xen-devel-bounces@xxxxxxxxxxxxx] On 
> Behalf Of gavin [gbtux@xxxxxxx]
> Sent: Sunday, December 23, 2012 8:04 AM
> To: Pasi Kärkkäinen
> Cc: xen-users@xxxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxx
> Subject: Re: [Xen-devel] How to use the vTPM backend driver in the pv-ops 
> kernel
>
> Hi Pasi,
>
> Thank you very much for your information.
>
> Best Regards,
> Gavin
>
> At 2012-12-23 06:04:08,"Pasi Kärkkäinen" <pasik@xxxxxx> wrote:
>
> >On Sun, Dec 23, 2012 at 01:50:16AM +0800, gavin wrote:
> >>     Hi,
> >>
> >>    I cannot find the vTPM config option CONFIG_XEN_TPMDEV_BACKEND in the
> >>    config file of pv-ops kernel, such as kernel 2.6.32.50. However, this
> >>    option exists in the config file of kernel version 2.6.18.8. I also 
> >> cannot
> >>    find the vTPM backed driver (such as
> >>    linux-2.6.18-xen.hg/drivers/xen/tpmback ) in the pv-ops kernel.
> >>    So, how can I configure and use the vTPM backend driver in kernel 
> >> 2.6.32?
> >>    Thank you for any advice.
> >>
> >
> >I don't think vtpm drivers were ported to 2.6.32 pvops.
> >Recently there has been work on porting the drivers to upstream Linux 3.x,
> >but they aren't merged yet iirc.
> >
> >If you need to use them with 2.6.32 you need to port them yourself..
> >
> >-- Pasi
> >
>
>
>

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