Re: [Xen-devel] [Qemu-devel] [PATCH] SeaBios/vTPM: Enable Xen stubdom vTPM for HVM virtual machine

["Xu, Quan" <quan.xu@xxxxxxxxx>]

> -----Original Message-----
> From: Stefan Berger [mailto:stefanb@xxxxxxxxxxxxxxxxxx]
> Sent: Tuesday, March 24, 2015 4:01 AM
> To: Xu, Quan; Ian Campbell
> Cc: kevin@xxxxxxxxxxxx; qemu-devel@xxxxxxxxxx;
> stefano.stabellini@xxxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxx
> Subject: Re: [Qemu-devel] [Xen-devel] [PATCH] SeaBios/vTPM: Enable Xen
> stubdom vTPM for HVM virtual machine
> 
> On 03/23/2015 08:03 AM, Xu, Quan wrote:
> >
> >> -----Original Message-----
> >> From: Stefan Berger [mailto:stefanb@xxxxxxxxxxxxxxxxxx]
> >> Sent: Monday, March 23, 2015 6:57 PM
> >> To: Xu, Quan; Ian Campbell
> >> Cc: kevin@xxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxx;
> >> qemu-devel@xxxxxxxxxx; stefano.stabellini@xxxxxxxxxxxxx
> >> Subject: Re: [Xen-devel] [PATCH] SeaBios/vTPM: Enable Xen stubdom
> >> vTPM for HVM virtual machine
> >>
> >> On 03/22/2015 09:47 PM, Xu, Quan wrote:
> >>>> -----Original Message-----
> >>>> From: Stefan Berger [mailto:stefanb@xxxxxxxxxxxxxxxxxx]
> >>>> Sent: Friday, March 20, 2015 7:44 PM
> >>>> To: Ian Campbell; Xu, Quan
> >>>> Cc: kevin@xxxxxxxxxxxx; xen-devel@xxxxxxxxxxxxx;
> >>>> qemu-devel@xxxxxxxxxx; stefano.stabellini@xxxxxxxxxxxxx
> >>>> Subject: Re: [Xen-devel] [PATCH] SeaBios/vTPM: Enable Xen stubdom
> >>>> vTPM for HVM virtual machine
> >>>>
> >>>> On 03/19/2015 08:56 AM, Ian Campbell wrote:
> >>>>> On Tue, 2015-03-10 at 08:16 -0400, Quan Xu wrote:
> >>>>>> @@ -151,6 +152,8 @@ device_hardware_setup(void)
> >>>>>>         esp_scsi_setup();
> >>>>>>         megasas_setup();
> >>>>>>         pvscsi_setup();
> >>>>>> +    if (runningOnXen())
> >>>>>> +        vtpm4hvm_setup();
> >>>>> Is there anything which is actually Xen specific about the driver
> >>>>> in tpm.[ch]? Would it be better to just probe for it, perhaps
> >>>>> gates by a Kconfig option which enables TPM support.
> >>>> I also think the probing should be done. That code can also be
> >>>> recycled from what I posted earlier. It's gated by a Kconfig
> >>>> option, so it doesn't
> >> fill up the 128k ROM.
> >>>>        Stefan
> >>>>
> >>> Agree, I will do it ASAP.
> >> I reposted v9 of my series of patches. I will probably post v10 today.
> >> Please try that one then since these patches should cover Xen, QEMU
> >> (using a driver that only I can test at the moment), and to some
> >> extent bare metal system.
> >>
> >>
> >>      Stefan
> >>
> > Great!  Could you also archive v10 to your github?
> > then I can also test it and go through these source code.
> 
> I put it here now:
> 
> https://github.com/stefanberger/seabios-tpm
> 
>      Stefan

Thanks.
MS windows guest VM are maybe tricky issues. In my early-stage SeaBios patch, 
I deal with TPM TCPA and SSDT in SeaBios, but MS windows guest VM is blue 
screens(Linux guest virtual machines are working). 
It works when I deal with TPM TCPA and SSDT in hvmloader for Windows guest VM.

CCed Jan/Wei.


Quan

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