[SeaBIOS] [PATCH 2/3] Support for TPM Physical Presence Interface

[Kevin O'Connor]

On Fri, May 08, 2015 at 01:45:47PM -0400, Stefan Berger wrote:
> This patch implements the specification found here:
> 
> http://www.trustedcomputinggroup.org/resources/tcg_physical_presence_interface_specification
> 
> It adds the necessary BIOS code so that for example an administrator can send
> messages from the OS to the BIOS for the BIOS to change the state of the TPM
> upon reboot. With the help of this interface, an administrator does not have
> to manually interact with the BIOS.
[...]
> --- a/src/post.c
> +++ b/src/post.c
> @@ -219,6 +219,7 @@ maininit(void)
>  
>      // Setup platform devices.
>      platform_hardware_setup();
> +    tpm_ppi_init();
>  
>      // Start hardware initialization (if threads allowed during optionroms)
>      if (threads_during_optionroms())
> @@ -240,6 +241,8 @@ maininit(void)
>      // Run option roms
>      optionrom_setup();
>  
> +    // Process user-requested TPM state change
> +    tpm_ppi_process();

I think both of these calls should be folded into tpm_start().

-Kevin