
Google Titan Root of Trust
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Host Power Up
Titan boots,Holds
Host CPU In reset
Titan verifies boot
Firmware code
Titan Allows to
boot
Boot Firmware
Flash Chip
Platform
Controller Hub
Reset logic
power
sequencing
启动步骤:
①、主机电源启动;
②、Titan启动,保持主机CPU工作在Reset模式;
③、Titan确认PCH中读取Flash的Boot Firmware代码;采用Beat-By-Beat模式;
④、确认通过之后,Titan允许机器进行启动;
⑤、后续开始其他可信检查,详见下页;
First Instruction Integrity
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