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

From: Kevin O'Connor
Subject: Re: [Qemu-devel] [PATCH] SeaBios/vTPM: Enable Xen stubdom vTPM for HVM virtual machine
Date: Wed, 11 Mar 2015 15:49:12 -0400
User-agent: Mutt/1.5.23 (2014-03-12)

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.
> ========================
> ========================
> 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 
> 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?


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