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请教各位:目前集成TEE的SOC(如手机SOC),其TEE系统是否有独立的FLASH?(该FLASH与REE硬件隔离,无法通过REE的ROOT权限修改?)谢谢。
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请教各位:目前集成TEE的SOC(如手机SOC),其TEE系统是否有独立的FLASH?(该FLASH与REE硬件隔离,无法通过REE的ROOT权限修改?)谢谢。
MTS
over 6 years ago
同上
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Ethan Zhang
over 6 years ago
+1
suggested
Hi MTS 这个要看你的硬件设计和Trusted OS的实现,以前也有公司实现过你说的这种方案,TEE和REE分别有不同的flash,这样就需要Trusted OS有file system,EMMC driver等等。目前大多数都是TEE和REE都是使用同一块flash,有的Trusted OS利用REE的存储,一般都是加密的。