tpm: TPM 2 support

[王杰]

Hello,
    I am using the seabios-1.10.0 with qemu2.6, I know seabios-1.10.0 supports TPM2.0, but unfortunately it doesn’t work for me. I have tested CentOS 7.2 and Ubuntu 14.04, it all said: 
    “ima: NO TPM chip found, activating TPM-bypass!”
    I doubt it’s a problem about TPM driver, so I download the Ubuntu kernel source code, and I find the interface as follows:
--- TPM Hardware Support
-*-    TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface
<M>    TPM Interface Specification 1.2 Interface (I2C - Atmel)
<M>    TPM Interface Specification 1.2 Interface (I2C -Infineon)
<M>    TPM Interface Specification 1.2 Interface (I2C - Muvoton)
<M>    National Semiconductor TPM Interface
<M>    Atmel TPM Interface
<M>    Infineon Technologies TPM Interface
<M>    XEN TPM Interface
< >    TPM 2.0 CRB Interface
< >    STMicroelectronics TPM Interface Specification 1.2 Interface
---
    Should I need open the TPM 2.0 CRB Interface? I really hope you could give me some advice.

Best Reagrds,
Jie Wang

[Marc-André Lureau]

Hi

----- Original Message -----
> Hello,
>
> I am using the seabios-1.10.0 with qemu2.6, I know seabios-1.10.0 supports
> TPM2.0, but unfortunately it doesn’t work for me. I have tested CentOS 7.2
> and Ubuntu 14.04, it all said:
>
> “ ima: NO TPM chip found, activating TPM-bypass !”
>
> I doubt it’s a problem about TPM driver, so I download the Ubuntu kernel
> source code, and I find the interface as follows:
>
> --- TPM Hardware Support
>
> -*- TPM Interface Specification 1.2 Interface / TPM 2.0 FIFO Interface
>
> <M> TPM Interface Specification 1.2 Interface (I2C - Atmel)
>
> <M> TPM Interface Specification 1.2 Interface (I2C -Infineon)
>
> <M> TPM Interface Specification 1.2 Interface (I2C - Muvoton)
>
> <M> National Semiconductor TPM Interface
>
> <M> Atmel TPM Interface
>
> <M> Infineon Technologies TPM Interface
>
> <M> XEN TPM Interface
>
> < > TPM 2.0 CRB Interface
>
> < > STMicroelectronics TPM Interface Specification 1.2 Interface
>
> Should I need open the TPM 2.0 CRB Interface? I really hope you could give me
> some advice.

You can passthrough a TPM 2.0 device with the qemu TIS interface. This should work ok with a Linux guest.

Is your TPM 2.0 device correctly working on the host?

regards