ImaginaTIon is the semiconductor IP company that made the first shot in this transformation. It was the first to introduce virtualization into the microcontroller-based CPU. Then it showed how developers can make full use of the lightweight virtual control program using MIPS M-class MCUs. This feature.
Subsequently, we explained the use of the same virtualization technology to better implement the security performance of running Linux-based routers and other connected devices on high-end MIPS military-class CPUs.
Today, I want to explain again why virtualization is very suitable for microcontrollers. I will show a new product running on a MIPS M-class CPU. The following figure is Microchip Technology's PIC32MZ EF MCU, which can run bare metal applications that are originally high-performance microcontrollers.
The key difference is that most microcontrollers may run these applications directly on the available hardware - there is no safe way to isolate them.
In our example, the development platform can use the hardware virtualization presented in the MIPS M5150 CPU that drives the PIC32 microcontrollers to run the virtual applications to be secure on each application's virtual machine (VM). isolation. This provides developers with a good opportunity to create new embedded computer use cases. Our example mainly has three applications running in parallel:
• Picotcp: Small footprint, feature-rich TCP/IP stack for the Internet of Things
• prplPUFTM: Intrinsic-ID's physical unclonable function (PUF) technology for MIPS CPUs, which can effectively implement security features such as device authentication and anti-cloning.
• Robot control and management: Bare-metal code controls robot motion through the rich set of I/O available on the PIC32 development board
This demonstration may also create another industry first: The prplHypervisorTM is a lightweight and completely open source hypervisor specifically designed to ensure security by isolating billions of connected IoT-embedded embedded devices.
The prplHypervisor makes full use of the virtualization technology embedded in the MIPS military class CPU to create multiple different security domains. This allows all types of applications and operating systems, from bare-code to Linux-based systems, to operate independently and securely within these security domains. The prplHypervisor also creates a secure, high-speed communication channel in different VMs in the system.
These channels are defined by a set of open source sets called prplSecureInterVMTM. In addition to the secure inter-VM communication channel, prpl FoundaTIon also defines a key management and authentication API via prplPUF.
The prplHypervisor and its related APIs are the products of prpl FoundaTIon's cooperation with ADB, Baikal Electronics, SoftAtHome, PUCRS, and Intrinsic-ID.
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