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

[Kevin O'Connor]

On Tue, Mar 10, 2015 at 08:16:03AM -0400, Quan Xu wrote:
> This patch series are only the SeaBios part to enable stubdom vTPM for HVM
> virtual machine. It will work with Qemu patch series and Xen patch series.
> 
> ========================
>     *INTRODUCTION*
> ========================
> The goal of virtual Trusted Platform Module (vTPM) is to provide a TPM 
> functionality
> to virtual machines (Fedora, Ubuntu, Redhat, Windows .etc). This allows 
> programs
> to interact with a TPM in a virtual machine the same way they interact with a 
> TPM
> on the physical system. Each virtual machine gets its own unique, emulated, 
> software
> TPM. Each major component of vTPM is implemented as a stubdom, providing 
> secure
> separation guaranteed by the hypervisor.
> 
> The vTPM stubdom is a Xen mini-OS domain that emulates a TPM for the virtual 
> machine
> to use. It is a small wrapper around the Berlios TPM emulator. TPM commands 
> are passed
> from mini-os TPM backend driver.

Thanks.  Does this seabios patch require additional seabios patches
before it is useful?  Does it depend on upstream patches in Xen/QEMU
that are not yet committed?

-Kevin