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Re: [PATCH V4 0/3] Enable TDX measurement to RTMR register

From: Daniel Kiper
Subject: Re: [PATCH V4 0/3] Enable TDX measurement to RTMR register
Date: Tue, 19 Jul 2022 15:52:02 +0200
User-agent: NeoMutt/20170113 (1.7.2)

On Wed, Jul 13, 2022 at 10:06:09AM +0800, Lu Ken wrote:
> Intel Trust Domain Extensions(Intel TDX) refers to an Intel technology
> that extends Virtual Machine Extensions(VMX) and Multi-Key Total Memory
> Encryption(MK-TME) with a new kind of virtual machine guest called a
> Trust Domain(TD)[1]. A TD runs in a CPU mode that protects the confidentiality
> of its memory contents and its CPU state from any other software, including
> the hosting Virtual Machine Monitor (VMM).
> Trust Domain Virtual Firmware (TDVF) is required to provide TD services to
> the TD guest OS.[2] Its reference code is available at 
> To support TD measurement/attestation, TDs provide 4 RTMR registers like
> TPM/TPM2 PCR as below:
> - RTMR[0] is for TDVF configuration
> - RTMR[1] is for the TD OS loader and kernel
> - RTMR[2] is for the OS application
> - RTMR[3] is reserved for special usage only
> This patch adds TD Measurement protocol support along with TPM/TPM2 protocol.
> References:
> [1] 
> [2] 
> Lu Ken (3):
>   efi/tpm.c: Refine the status of log event
>   efi/tpm.c: Uses grub_strcpy() to replace grub_memcpy()

There are still some nits but I will fix them for you.

Anyway, for all patches Reviewed-by: Daniel Kiper <>...


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