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Architectures and Processors forum What is meaning of Logical MMU ?

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What is meaning of Logical MMU ?

Sahil over 8 years ago

I have read in one of the ARM document for TrustZone that

Within a TrustZone processor the hardware provides two virtual MMUs, one for each virtual processor. This enables each world to
have a local set of translation tables, giving them independent control over their virtual address to physical address mappings.

If anybody can explain what is Virtual MMU, that will be really helpful.

Thanks

Sahil

Top replies

daith over 8 years ago +1

The lower levels of Trustzone are implemented quite differently on ARMv8-M and on the Application level architectures. On ARMv8-M the switching is all done in hardware and the same memory map is used just...
Peter Rielly over 8 years ago +1 suggested

Hiya Sahil, I think the quote is from: "Building a Secure System using TrustZone® Technology" It's just saying that as the secure and non-secure worlds have a different MMU configuration it's like...