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Re: [Qemu-devel] [SeaBIOS] [PATCH V6 1/9] Add an implementation of a TPM
From: |
Marc Jones |
Subject: |
Re: [Qemu-devel] [SeaBIOS] [PATCH V6 1/9] Add an implementation of a TPM TIS driver |
Date: |
Fri, 19 Aug 2011 11:33:24 -0600 |
On Wed, Aug 10, 2011 at 10:51 AM, Stefan Berger
<address@hidden> wrote:
> This patch adds an implementation of a TPM TIS driver for the TPM TIS
> emulation supported by Qemu (patches posted, not in git yet). Usage of the
> driver is broken up into several functions. The driver is cleanly separated
> from the rest of the code through an interface holding pointers to the
> driver's
> functions. A client using this driver first probes whether the TPM TIS
> interface is available (probe function) and then invokes the interface
> function to initialze the interface and send requests and receive responses.
>
> Possible future extensions *could* include a virtio interface for the TPM
> with a corresponding driver here.
>
> v6:
> - reworked timeouts; not hardcoded anymore
>
> v5:
> - introducing a configurable threashold as part of the driver interface
> structure below which the TPM is used for calculating the sha1
>
> v2:
> - adapted tpm_drivers.c to be under LGPLv3
>
> Signed-off-by: Stefan Berger <address@hidden>
Hi Stefan,
Please excuse my TPM ignorance, but is the emulation of a specific
hardware device or has the TCG defined the registers etc for TPM
hardware?
Marc
--
http://se-eng.com
- [Qemu-devel] [PATCH V6 0/9] Add TPM support to SeaBIOS, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 7/9] Add a menu for TPM control, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 2/9] Provide ACPI SSDT table for TPM device + S3 resume support, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 1/9] Add an implementation of a TPM TIS driver, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 4/9] Implementation of the TCG BIOS extensions, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 5/9] Support for BIOS interrupt handler, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 3/9] Add public get_rsdp function, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 6/9] Add measurement code to the BIOS, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 9/9] Optional tests for the TIS interface, Stefan Berger, 2011/08/10
- [Qemu-devel] [PATCH V6 8/9] Support for Qemu-provided measurements, Stefan Berger, 2011/08/10