PSPTool – Display, extract, and manipulate PSP firmware

[Christian Werling]

Hi everyone,

over the past year I did some research on AMD’s controversial Secure Processor (formerly known as Platform Security Processor or PSP). Its firmware is stored in an undocumented area of UEFI images and so I wrote a tool that can parse it. I thought some of you might be interested in that: https://github.com/cwerling/psptool https://github.com/cwerling/psptool

It is accompanied by PSPTrace, which can correlate an SPI capture of a boot procedure to the AMD firmware entries so you can deduct some boot logic from it.

Cheers,
Christian

[Kinky Nekoboi]

Nice work,

first step to an PSPCleaner!

Am 31.05.19 um 11:27 schrieb Christian Werling:
> Hi everyone,
>
> over the past year I did some research on AMD’s controversial Secure
> Processor (formerly known as Platform Security Processor or PSP). Its
> firmware is stored in an undocumented area of UEFI images and so I
> wrote a tool that can parse it. I thought some of you might be
> interested in that: https://github.com/cwerling/psptool
>
> It is accompanied by PSPTrace, which can correlate an SPI capture of a
> boot procedure to the AMD firmware entries so you can deduct some boot
> logic from it.
>
> Cheers,
> Christian
>
> coreboot mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]

[Matt B]

That's pretty impressive, imho. Especially the ability to figure out some
of the steps it goes through during boot.
With AMD suddenly putting out more capable chips, they and the PSP might
become more relevant.

Sincerely,
    -Matt

On Fri, May 31, 2019 at 6:05 AM Kinky Nekoboi 
wrote:
> Nice work,
>
> first step to an PSPCleaner!
>
> Am 31.05.19 um 11:27 schrieb Christian Werling:
>
> Hi everyone,
>
> over the past year I did some research on AMD’s controversial Secure
> Processor (formerly known as Platform Security Processor or PSP). Its
> firmware is stored in an undocumented area of UEFI images and so I wrote a
> tool that can parse it. I thought some of you might be interested in that:
> https://github.com/cwerling/psptool
>
> It is accompanied by PSPTrace, which can correlate an SPI capture of a
> boot procedure to the AMD firmware entries so you can deduct some boot
> logic from it.
>
> Cheers,
> Christian
>
> coreboot mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]
>
> coreboot mailing list -- [e-mail]
> To unsubscribe send an email to [e-mail]