stored in ACPI table of the system; SSML (Software Stored Measurement Log) is a measure logs of the software, created by Grub and VMM. TCG currently only give the definition of HSML, and uses it for the remote attestation, but there is information of the hardware platform launch in HSML, and no description of software-related information of operating system, so here we define SSML, used to describe the start process of the TGrub To VMM, and then to different operating system on the VMM. HSML is different to SSML, because it stores on the hard drive. It can be a paper on the region being protected, or be stored in the protected hard drive. The protected key is managed by VMM.