This document provides an overview of ARM processor fundamentals, including:
- The ARM core uses a data flow model with functional units connected by data buses. It contains general purpose registers and the current program status register (CPSR).
- The processor supports different instruction sets (ARM, Thumb, Jazelle) and modes (user/privileged). It implements pipelining for faster instruction execution.
- Exceptions and interrupts trigger the processor to jump to addresses in the vector table. Core extensions include caches, memory management, and a coprocessor interface.
- ARM processors are organized into families and specialized processors exist for different applications like low power usage.
This document provides an overview of ARM embedded systems, including the ARM processor architecture, instruction set, hardware components, and software stack. It describes the RISC design philosophy behind ARM and how its instruction set is optimized for embedded applications. It also discusses the ARM bus technology, memory, peripherals, boot code, operating systems, and common application areas for ARM processors like networking, automotive, mobile devices, and more.
The document provides an overview of embedded systems and ARM processors. It discusses key aspects of ARM processors including the pipeline, memory management features like cache, TCM, MMU and TLB. It also summarizes the AMBA specification and differences between operating in ARM and Thumb states. The document is intended as lecture material for an embedded systems course covering ARM architecture.
1: Interfacing using ARM Cortex M4 || IEEE SSCS AlexSC IEEE SSCS AlexSC
This document provides an overview of ARM architecture, including ARM Cortex-M4 and M3 specifications, and peripherals of the TM4C123GH6PM microcontroller. It discusses the history and development of ARM architecture, from its origins at Acorn Computers to the current licensing model. ARMv7 architecture profiles including A-Profile for application processors, R-Profile for real-time systems, and M-Profile for microcontrollers are also covered. Specific topics to be discussed include GPIO, ADC, interrupts, SPI, I2C, UART, DMA, and timer interfacing.
This document provides an overview of ARM-based microcontrollers and peripherals, focusing on the ARM Cortex-M3 and Cortex-M4 processors. It discusses the specifications and features of these processors, including their 32-bit architecture, pipeline design, memory system using AMBA buses, and interrupt handling using the Nested Vectored Interrupt Controller. It also summarizes the peripherals and features of the TM4C123GH6PM microcontroller, including its ARM Cortex-M4 core, memory interfaces, and peripherals like GPIO, UART, SPI, I2C, ADC and timers. An agenda is provided outlining topics like the Cortex-M processor family, Cortex-M
This document provides an overview of memory systems and caching in ARM processors. It discusses memory hierarchies including tightly coupled memory. It covers concepts like alignment, endianness, memory ordering models, and the virtual memory system architecture (VMSA) used in Cortex-A processors. It describes the memory protection unit (MPU) and how it provides memory protection. It also discusses caching in Cortex-A processors including cache terminology, how data is stored in caches, and an example of a memory access involving the cache.
The ARM processor architecture uses either reduced instruction set computing (RISC) or complex instruction set computing (CISC). RISC aims to improve performance by reducing the number of clock cycles per instruction through simpler instructions that execute in one cycle. CISC relies more on hardware for complex instructions. Memory in ARM systems is hierarchical, with cache memory closest to the processor core and secondary storage like hard drives further away. Peripherals allow input/output and are memory mapped through registers. Initialization code configures hardware and runs diagnostics before booting the operating system.
This document provides an introduction to the ARM-7 microprocessor architecture. It describes key features of the ARM7TDMI including its 32-bit RISC instruction set, 3-stage pipeline, 37 registers including separate registers for different processor modes, and low power consumption. The document also compares RISC and CISC architectures and summarizes the different versions of the ARM architecture.
This document provides an overview of ARM processor fundamentals, including:
- The ARM core uses a data flow model with functional units connected by data buses. It contains general purpose registers and the current program status register (CPSR).
- The processor supports different instruction sets (ARM, Thumb, Jazelle) and modes (user/privileged). It implements pipelining for faster instruction execution.
- Exceptions and interrupts trigger the processor to jump to addresses in the vector table. Core extensions include caches, memory management, and a coprocessor interface.
- ARM processors are organized into families and specialized processors exist for different applications like low power usage.
This document provides an overview of ARM embedded systems, including the ARM processor architecture, instruction set, hardware components, and software stack. It describes the RISC design philosophy behind ARM and how its instruction set is optimized for embedded applications. It also discusses the ARM bus technology, memory, peripherals, boot code, operating systems, and common application areas for ARM processors like networking, automotive, mobile devices, and more.
The document provides an overview of embedded systems and ARM processors. It discusses key aspects of ARM processors including the pipeline, memory management features like cache, TCM, MMU and TLB. It also summarizes the AMBA specification and differences between operating in ARM and Thumb states. The document is intended as lecture material for an embedded systems course covering ARM architecture.
1: Interfacing using ARM Cortex M4 || IEEE SSCS AlexSC IEEE SSCS AlexSC
This document provides an overview of ARM architecture, including ARM Cortex-M4 and M3 specifications, and peripherals of the TM4C123GH6PM microcontroller. It discusses the history and development of ARM architecture, from its origins at Acorn Computers to the current licensing model. ARMv7 architecture profiles including A-Profile for application processors, R-Profile for real-time systems, and M-Profile for microcontrollers are also covered. Specific topics to be discussed include GPIO, ADC, interrupts, SPI, I2C, UART, DMA, and timer interfacing.
This document provides an overview of ARM-based microcontrollers and peripherals, focusing on the ARM Cortex-M3 and Cortex-M4 processors. It discusses the specifications and features of these processors, including their 32-bit architecture, pipeline design, memory system using AMBA buses, and interrupt handling using the Nested Vectored Interrupt Controller. It also summarizes the peripherals and features of the TM4C123GH6PM microcontroller, including its ARM Cortex-M4 core, memory interfaces, and peripherals like GPIO, UART, SPI, I2C, ADC and timers. An agenda is provided outlining topics like the Cortex-M processor family, Cortex-M
This document provides an overview of memory systems and caching in ARM processors. It discusses memory hierarchies including tightly coupled memory. It covers concepts like alignment, endianness, memory ordering models, and the virtual memory system architecture (VMSA) used in Cortex-A processors. It describes the memory protection unit (MPU) and how it provides memory protection. It also discusses caching in Cortex-A processors including cache terminology, how data is stored in caches, and an example of a memory access involving the cache.
The ARM processor architecture uses either reduced instruction set computing (RISC) or complex instruction set computing (CISC). RISC aims to improve performance by reducing the number of clock cycles per instruction through simpler instructions that execute in one cycle. CISC relies more on hardware for complex instructions. Memory in ARM systems is hierarchical, with cache memory closest to the processor core and secondary storage like hard drives further away. Peripherals allow input/output and are memory mapped through registers. Initialization code configures hardware and runs diagnostics before booting the operating system.
This document provides an introduction to the ARM-7 microprocessor architecture. It describes key features of the ARM7TDMI including its 32-bit RISC instruction set, 3-stage pipeline, 37 registers including separate registers for different processor modes, and low power consumption. The document also compares RISC and CISC architectures and summarizes the different versions of the ARM architecture.
- Thumb is a 16-bit instruction set extension to the 32-bit ARM architecture that provides higher code density and smaller memory requirements compared to standard ARM code.
- Thumb instructions are 16-bits wide while ARM instructions are 32-bits wide, allowing Thumb code to be half the size of equivalent ARM code.
- Thumb code executes on ARM processors by decompressing Thumb instructions into their 32-bit ARM equivalents on the processor.
The document provides an overview of the ARM architecture and Cortex-M3 processor. It discusses ARM Ltd.'s history and business model as an IP licensing company. It then describes the Cortex-M3 microcontroller, including its programmer's model, exception and interrupt handling, pipeline, and instruction sets. Key points are the Cortex-M3's stack-based exception model, 3-stage pipeline, conditional execution support, and AHB/APB system design integration.
Introduction – Multiple tasks and multiple processes – Multirate systems- Preemptive realtime operating systems- Priority based scheduling- Interprocess communication mechanisms – Evaluating operating system performance- power optimization strategies for processes –Example Real time operating systems-POSIX-Windows CE. – Distributed embedded systems – MPSoCs and shared memory multiprocessors. – Design Example – Audio player, Engine control unit – Video accelerator.
The document provides information about embedded systems and the MC68HC11 microcontroller. It discusses the characteristics of embedded systems including speed, power, size, accuracy, and adaptability. It then describes the MC68HC11 microcontroller including its architecture, registers, addressing modes, and operating modes. Examples are provided to illustrate direct, extended, and indexed addressing modes. The document is an educational material about embedded systems and the MC68HC11 microcontroller.
The document discusses the features and architecture of the ARM9 processor. It describes the ARM9 as having a 5-stage pipeline, 32 registers, and support for both ARM and Thumb instruction sets. It supports DSP enhancements like single-cycle 32x16 multiplication and saturating arithmetic. The ARM9 powers applications in devices like smartphones, networking equipment, automotive systems, and embedded devices. The document then focuses on the specific ARM920T processor, which adds a 16KB cache and memory management unit to the ARM9 core.
The document provides an overview of ARM processor architectures. It discusses ARM's range of RISC processor core designs including early processors like ARM7TDMI and ARM9TDMI. It covers the evolution of architectures like ARMv6, ARMv7, and ARMv7-M. It provides details on Cortex processor families like Cortex-A, Cortex-R, and Cortex-M. It describes features of various Cortex processors including pipeline stages, memory systems, and instruction sets. The document is intended to introduce the reader to ARM architectures and processor families.
AAME ARM Techcon2013 006v02 Implementation DiversityAnh Dung NGUYEN
This document discusses various Cortex-M series processors including the Cortex-M0, Cortex-M0+, Cortex-M3, and Cortex-M4. It describes their architecture, configuration options, and debug features. The Cortex-M0 is a 32-bit processor with optional debug and a 12-25K gate count. The Cortex-M0+ offers improvements like a 2-stage pipeline and optional MPU. The Cortex-M3 and M4 have additional options like an MPU and ETM. Debugging support includes breakpoints, watchpoints, and optional trace modules.
This document summarizes a seminar on ARM architecture presented by Kshitij Gorde. It discusses the history and development of ARM processors, key features of the ARM architecture including the register files and instruction sets. Specific ARM processor families including ARM7, ARM9, ARM10 are described along with their characteristics. The document also covers ARM processor modes, exception handling, and systems that use ARM processors.
This document discusses the ARM processor and operating systems. It begins with an introduction and brief history of ARM. ARM is a 32-bit RISC processor that is small in size, has high performance, and low power consumption. The document then discusses ARM architecture, memory management units, synchronization, swapping, context switching, and input/output functions. It also covers the ARM partnership model and powered products. Operating systems help run programs concurrently without data loss through functions like memory management, privileged mode operation, and resource allocation.
Computer Organization : CPU, Memory and I/O organizationAmrutaMehata
This document provides information on CPU, memory, and I/O organization. It begins with an overview of the main components of a computer including the processor unit, memory unit, and input/output unit. It then describes the CPU in more detail including the arithmetic logic unit, control unit, and CPU block diagram. The document discusses the system bus and its various lines. It also covers CPU registers, instruction cycles, and status and control flags. The document provides an overview of instruction set architecture and compares RISC and CISC processor designs.
This document provides an overview of the ARM Cortex-M3 subsystem and its peripherals. It discusses the Cortex-M3 processor core and its features like the pipeline, instruction set, registers and exception handling. It also describes the peripherals like DMA, UART, timers and watchdog. The document outlines the development tools like uVision IDE and debugger. It discusses the software development flow including building, downloading and debugging programs on the target board.
The document discusses CPU architecture and microcontroller components. It describes how the CPU is divided into three main parts: the datapath, control unit, and instruction set. The datapath performs data processing, the control unit uses instructions to direct the datapath, and the instruction set is the programmer interface. It then focuses on explaining the datapath in more detail, including the arithmetic logic unit, register file, and their functions. Finally, it provides an overview of different microcontroller families that can be selected based on application requirements like I/O needs, memory, speed, and more.
This document provides an introduction to the ARM processor architecture. It discusses key aspects of ARM including the ARM programming model, instruction set, memory hierarchy, and development tools. ARM is a popular reduced instruction set computing (RISC) architecture used in many portable electronic devices due to its low power consumption.
Embedded systems contain processors designed to perform dedicated functions. They tightly integrate hardware and software to perform tasks like controlling quadcopters, engines, and satellites. Embedded systems have processors unlike general purpose CPUs in PCs. They are integral parts of larger systems. Microcontrollers are commonly used embedded systems that integrate a processor, memory, and I/O on a single chip. They include peripherals like timers, analog-to-digital converters, and communication protocols. The microcontroller acts as the brain that processes instructions from memory and transfers data through buses to peripherals and memory to control inputs and outputs.
Memory systems can be classified as primary or secondary. Primary memory includes RAM and ROM. RAM is further divided into static RAM and dynamic RAM. Dynamic RAM includes synchronous DRAM and asynchronous DRAM. The maximum memory size is determined by the processor's address lines. Data is transferred between memory and the processor via memory address and data registers. Random access memory allows direct access to any memory location using its row and column address. Dynamic RAM is the most common memory type, using a transistor and capacitor in each memory cell to store data. Dynamic RAM must be regularly refreshed to prevent data loss from capacitor leakage.
This webinar by Andriy Petlovanyy (Senior Solution Architect, Consultant, GlobalLogic) was delivered at Embedded Community Webinar #5 on October 8, 2020.
This report focuses on the use of the Memory Protection Unit (MPU) in the Cortex M series of microcontrollers. We have considered the different uses of this tool, including the strengths and weaknesses of each of the proposed approaches. Participants briefly looked at the use of MPU in various real-time operating systems (Real-Time Operating System, RTOS). The speaker shared the results of research and interesting observations in this area.
More details and presentation: https://www.globallogic.com/ua/about/events/embedded-community-webinar-5/
The document provides an overview of computer architecture and microprocessors. It discusses microprocessor components like the accumulator, registers, flags, and control bus. It describes microprocessor operations like memory reads, writes and I/O. It also covers the 8085 microprocessor architecture in detail, including its pin configuration, buses, registers, interrupts and timing.
The document discusses various techniques for input/output (I/O) in computer systems, including programmed I/O, interrupt-driven I/O, and direct memory access (DMA). It describes how I/O modules interface with CPUs and peripherals to handle data transfer between devices that operate at different speeds. Common I/O bus standards like ISA, PCI, FireWire, and InfiniBand are also overviewed in terms of their architecture, protocols, and applications.
Direct Memory Access (DMA) allows certain hardware subsystems to access main system memory independently of the CPU. DMA controllers temporarily borrow the address, data, and control buses from the microprocessor to transfer data directly between an I/O port and memory locations. This allows fast transfer of data to and from devices while the CPU performs other tasks, improving overall system performance. DMA transfers can occur via block transfers where the DMA controller controls the bus for an extended period, or via cycle stealing where it uses the bus for one transfer then returns control to the CPU.
Raspberry Pi is a single board computer that is about the size of a credit card. It has various ports and connections that allow it to be used for many purposes like media center, office tasks, programming, and more. It uses Linux operating systems and can control physical devices like servos through its GPIO pins using Pulse Width Modulation. The document describes connecting a servo to the Raspberry Pi GPIO pin and using the WiringPi library to send PWM signals to control the servo position.
ALSF13: Xen on ARM - Virtualization for the Automotive Industry - Stefano Sta...The Linux Foundation
During the last few months of 2011 the Xen Community started an effort to port Xen to ARMv7 with virtualization extensions, using the Cortex A15 processor as reference platform.
The new Xen port is exploiting this set of hardware capabilities to run guest VMs in the most efficient way possible while keeping the ARM specific changes to the hypervisor and the Linux kernel to a minimum. Developing the new port we took the chance to remove legacy concepts like PV or HVM guests and only support a single kind of guests that is comparable to "PVH" in the Xen X86 world.
Linux 3.7 was the first kernel release to run on Xen on ARM as Dom0 and DomU. Xen 4.3, out in July 2013, is the first hypervisor release to support ARMv7 with virtualization extensions and ARMv8.
This talk will explain why ARM virtualization is set to be increasingly relevant for the automotive industry in the coming years. We will go on to describe how Xen exploits the strengths of the hardware to meet the requirements of the industry. We will illustrate the early design choices and we will evaluate whether they were proven successful or a failure.
- Thumb is a 16-bit instruction set extension to the 32-bit ARM architecture that provides higher code density and smaller memory requirements compared to standard ARM code.
- Thumb instructions are 16-bits wide while ARM instructions are 32-bits wide, allowing Thumb code to be half the size of equivalent ARM code.
- Thumb code executes on ARM processors by decompressing Thumb instructions into their 32-bit ARM equivalents on the processor.
The document provides an overview of the ARM architecture and Cortex-M3 processor. It discusses ARM Ltd.'s history and business model as an IP licensing company. It then describes the Cortex-M3 microcontroller, including its programmer's model, exception and interrupt handling, pipeline, and instruction sets. Key points are the Cortex-M3's stack-based exception model, 3-stage pipeline, conditional execution support, and AHB/APB system design integration.
Introduction – Multiple tasks and multiple processes – Multirate systems- Preemptive realtime operating systems- Priority based scheduling- Interprocess communication mechanisms – Evaluating operating system performance- power optimization strategies for processes –Example Real time operating systems-POSIX-Windows CE. – Distributed embedded systems – MPSoCs and shared memory multiprocessors. – Design Example – Audio player, Engine control unit – Video accelerator.
The document provides information about embedded systems and the MC68HC11 microcontroller. It discusses the characteristics of embedded systems including speed, power, size, accuracy, and adaptability. It then describes the MC68HC11 microcontroller including its architecture, registers, addressing modes, and operating modes. Examples are provided to illustrate direct, extended, and indexed addressing modes. The document is an educational material about embedded systems and the MC68HC11 microcontroller.
The document discusses the features and architecture of the ARM9 processor. It describes the ARM9 as having a 5-stage pipeline, 32 registers, and support for both ARM and Thumb instruction sets. It supports DSP enhancements like single-cycle 32x16 multiplication and saturating arithmetic. The ARM9 powers applications in devices like smartphones, networking equipment, automotive systems, and embedded devices. The document then focuses on the specific ARM920T processor, which adds a 16KB cache and memory management unit to the ARM9 core.
The document provides an overview of ARM processor architectures. It discusses ARM's range of RISC processor core designs including early processors like ARM7TDMI and ARM9TDMI. It covers the evolution of architectures like ARMv6, ARMv7, and ARMv7-M. It provides details on Cortex processor families like Cortex-A, Cortex-R, and Cortex-M. It describes features of various Cortex processors including pipeline stages, memory systems, and instruction sets. The document is intended to introduce the reader to ARM architectures and processor families.
AAME ARM Techcon2013 006v02 Implementation DiversityAnh Dung NGUYEN
This document discusses various Cortex-M series processors including the Cortex-M0, Cortex-M0+, Cortex-M3, and Cortex-M4. It describes their architecture, configuration options, and debug features. The Cortex-M0 is a 32-bit processor with optional debug and a 12-25K gate count. The Cortex-M0+ offers improvements like a 2-stage pipeline and optional MPU. The Cortex-M3 and M4 have additional options like an MPU and ETM. Debugging support includes breakpoints, watchpoints, and optional trace modules.
This document summarizes a seminar on ARM architecture presented by Kshitij Gorde. It discusses the history and development of ARM processors, key features of the ARM architecture including the register files and instruction sets. Specific ARM processor families including ARM7, ARM9, ARM10 are described along with their characteristics. The document also covers ARM processor modes, exception handling, and systems that use ARM processors.
This document discusses the ARM processor and operating systems. It begins with an introduction and brief history of ARM. ARM is a 32-bit RISC processor that is small in size, has high performance, and low power consumption. The document then discusses ARM architecture, memory management units, synchronization, swapping, context switching, and input/output functions. It also covers the ARM partnership model and powered products. Operating systems help run programs concurrently without data loss through functions like memory management, privileged mode operation, and resource allocation.
Computer Organization : CPU, Memory and I/O organizationAmrutaMehata
This document provides information on CPU, memory, and I/O organization. It begins with an overview of the main components of a computer including the processor unit, memory unit, and input/output unit. It then describes the CPU in more detail including the arithmetic logic unit, control unit, and CPU block diagram. The document discusses the system bus and its various lines. It also covers CPU registers, instruction cycles, and status and control flags. The document provides an overview of instruction set architecture and compares RISC and CISC processor designs.
This document provides an overview of the ARM Cortex-M3 subsystem and its peripherals. It discusses the Cortex-M3 processor core and its features like the pipeline, instruction set, registers and exception handling. It also describes the peripherals like DMA, UART, timers and watchdog. The document outlines the development tools like uVision IDE and debugger. It discusses the software development flow including building, downloading and debugging programs on the target board.
The document discusses CPU architecture and microcontroller components. It describes how the CPU is divided into three main parts: the datapath, control unit, and instruction set. The datapath performs data processing, the control unit uses instructions to direct the datapath, and the instruction set is the programmer interface. It then focuses on explaining the datapath in more detail, including the arithmetic logic unit, register file, and their functions. Finally, it provides an overview of different microcontroller families that can be selected based on application requirements like I/O needs, memory, speed, and more.
This document provides an introduction to the ARM processor architecture. It discusses key aspects of ARM including the ARM programming model, instruction set, memory hierarchy, and development tools. ARM is a popular reduced instruction set computing (RISC) architecture used in many portable electronic devices due to its low power consumption.
Embedded systems contain processors designed to perform dedicated functions. They tightly integrate hardware and software to perform tasks like controlling quadcopters, engines, and satellites. Embedded systems have processors unlike general purpose CPUs in PCs. They are integral parts of larger systems. Microcontrollers are commonly used embedded systems that integrate a processor, memory, and I/O on a single chip. They include peripherals like timers, analog-to-digital converters, and communication protocols. The microcontroller acts as the brain that processes instructions from memory and transfers data through buses to peripherals and memory to control inputs and outputs.
Memory systems can be classified as primary or secondary. Primary memory includes RAM and ROM. RAM is further divided into static RAM and dynamic RAM. Dynamic RAM includes synchronous DRAM and asynchronous DRAM. The maximum memory size is determined by the processor's address lines. Data is transferred between memory and the processor via memory address and data registers. Random access memory allows direct access to any memory location using its row and column address. Dynamic RAM is the most common memory type, using a transistor and capacitor in each memory cell to store data. Dynamic RAM must be regularly refreshed to prevent data loss from capacitor leakage.
This webinar by Andriy Petlovanyy (Senior Solution Architect, Consultant, GlobalLogic) was delivered at Embedded Community Webinar #5 on October 8, 2020.
This report focuses on the use of the Memory Protection Unit (MPU) in the Cortex M series of microcontrollers. We have considered the different uses of this tool, including the strengths and weaknesses of each of the proposed approaches. Participants briefly looked at the use of MPU in various real-time operating systems (Real-Time Operating System, RTOS). The speaker shared the results of research and interesting observations in this area.
More details and presentation: https://www.globallogic.com/ua/about/events/embedded-community-webinar-5/
The document provides an overview of computer architecture and microprocessors. It discusses microprocessor components like the accumulator, registers, flags, and control bus. It describes microprocessor operations like memory reads, writes and I/O. It also covers the 8085 microprocessor architecture in detail, including its pin configuration, buses, registers, interrupts and timing.
The document discusses various techniques for input/output (I/O) in computer systems, including programmed I/O, interrupt-driven I/O, and direct memory access (DMA). It describes how I/O modules interface with CPUs and peripherals to handle data transfer between devices that operate at different speeds. Common I/O bus standards like ISA, PCI, FireWire, and InfiniBand are also overviewed in terms of their architecture, protocols, and applications.
Direct Memory Access (DMA) allows certain hardware subsystems to access main system memory independently of the CPU. DMA controllers temporarily borrow the address, data, and control buses from the microprocessor to transfer data directly between an I/O port and memory locations. This allows fast transfer of data to and from devices while the CPU performs other tasks, improving overall system performance. DMA transfers can occur via block transfers where the DMA controller controls the bus for an extended period, or via cycle stealing where it uses the bus for one transfer then returns control to the CPU.
Raspberry Pi is a single board computer that is about the size of a credit card. It has various ports and connections that allow it to be used for many purposes like media center, office tasks, programming, and more. It uses Linux operating systems and can control physical devices like servos through its GPIO pins using Pulse Width Modulation. The document describes connecting a servo to the Raspberry Pi GPIO pin and using the WiringPi library to send PWM signals to control the servo position.
ALSF13: Xen on ARM - Virtualization for the Automotive Industry - Stefano Sta...The Linux Foundation
During the last few months of 2011 the Xen Community started an effort to port Xen to ARMv7 with virtualization extensions, using the Cortex A15 processor as reference platform.
The new Xen port is exploiting this set of hardware capabilities to run guest VMs in the most efficient way possible while keeping the ARM specific changes to the hypervisor and the Linux kernel to a minimum. Developing the new port we took the chance to remove legacy concepts like PV or HVM guests and only support a single kind of guests that is comparable to "PVH" in the Xen X86 world.
Linux 3.7 was the first kernel release to run on Xen on ARM as Dom0 and DomU. Xen 4.3, out in July 2013, is the first hypervisor release to support ARMv7 with virtualization extensions and ARMv8.
This talk will explain why ARM virtualization is set to be increasingly relevant for the automotive industry in the coming years. We will go on to describe how Xen exploits the strengths of the hardware to meet the requirements of the industry. We will illustrate the early design choices and we will evaluate whether they were proven successful or a failure.
Raspberry Pi presentation for Computer Architecture classMichael Gordon
Raspberry Pi is a low-cost computer developed by the Raspberry Pi Foundation to promote teaching computer science in schools. It uses a Broadcom BCM2835 system-on-a-chip with a 700MHz ARMv6 CPU and VideoCore IV GPU. The Raspberry Pi has gained popularity for uses in robotics projects, home automation, and bitcoin mining. Over 2.5 million units have been sold, helping more students learn computer programming skills.
Arm's new architecture for automotive and industrial control markets Swaroop Reddy Bugulu
ARM has revealed its latest ARMv8-R architecture designed for low-power computing in automotive and industrial applications. The new architecture features high memory protection capabilities and supports real-time operating systems and general purpose operating systems on the same processor. It allows for software consolidation across different operating systems and applications to accelerate development time and reduce costs. The ARMv8-R architecture is expected to enable more advanced driver assistance systems and efficient hybrid electric vehicle power train control systems.
Arm v8 instruction overview android 64 bit briefingMerck Hung
The document provides an overview of ARM64 and 64-bit Android. It discusses the benefits and drawbacks of 64-bit, the 64-bit Android ecosystem including CPUs, compilers, file formats, and runtime. It also outlines the ARM64 instruction set including registers, calling convention, and memory operations. Finally, it reviews the current state of 64-bit Android with 64-bit kernels, compilers, and emulators ready but 64-bit apps and infrastructure software still in development.
This document provides an agenda for a workshop on exploring the Raspberry Pi. The agenda includes introductions, an overview of the Raspberry Pi hardware, installing the operating system, using remote access like SSH and VNC, GPIO and sensor interfacing, Python and C programming, and demos of blinking LEDs, using buttons as inputs, and PWM. The document also discusses connecting the Raspberry Pi to devices like Arduino, cameras, and sound. It concludes with a 2 hour hackathon for participants to build projects with the Raspberry Pi.
The document introduces the Raspberry Pi, a credit card-sized computer that costs around $25. It has HDMI and USB ports and runs on a Broadcom BCM2835 chipset with 256MB-512MB of RAM. The Raspberry Pi is designed for education and can be used to teach programming concepts and hardware interfacing. It has many applications including use as a home media center or for adaptive technology due to its small size and ability to display 1080p video. However, it also has limitations such as only supporting SD cards up to 32GB for storage and its Ethernet port only supporting speeds up to 100Mbps. The future of the Raspberry Pi could include powering it with a battery and improving its
Raspberry Pi is a credit-card sized computer developed in the UK by the Raspberry Pi Foundation in 2009 to promote computer science education. It runs Linux and costs less than $35, making it an affordable platform for learning programming through Python and other languages. The Raspberry Pi has various ports and supports HD video output, and has been used in a variety of applications including supercomputers, tablets, phones, web servers, games, security cameras, and more. It aims to provide an inexpensive and open platform for experimenting with programming and electronics.
The Raspberry Pi is a credit-card sized computer that can connect to keyboards, monitors and TVs to function similarly to a desktop computer. It was developed by the Raspberry Pi Foundation in the UK to inspire teaching of basic computer science in schools and develop interest in programming. While low in cost at $25-35, the Raspberry Pi runs Linux and can be used for a variety of applications including robotics, programming practice and basic computing tasks.
Flexis QE 32-bit ColdFire® V1 Microcontrollers Premier Farnell
The document provides an overview of the Flexis QE 32-bit ColdFire V1 microcontrollers. It describes the ColdFire architecture and family, the key features of the MCF51QE microcontrollers including the V1 ColdFire core, peripherals, memory map, and programming model. Development tools and example applications are also summarized.
HKG15-505: Power Management interactions with OP-TEE and Trusted FirmwareLinaro
HKG15-505: Power Management interactions with OP-TEE and Trusted Firmware
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Speaker: Jorge Ramirez-Ortiz
Date: February 13, 2015
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★ Session Summary ★
[Note: this is a joint Security/Power Management session) Understand what use cases related to Power Management have to interact with Trusted Firmware via Secure calls. Walk through some key use cases like CPU Suspend and explain how PM Linux drivers interacts with Trusted Firmware / PSCI
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★ Resources ★
Pathable: https://hkg15.pathable.com/meetings/250855
Video: https://www.youtube.com/watch?v=hQ2ITjHZY4s
Etherpad: http://pad.linaro.org/p/hkg15-505
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★ Event Details ★
Linaro Connect Hong Kong 2015 - #HKG15
February 9-13th, 2015
Regal Airport Hotel Hong Kong Airport
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http://www.linaro.org
http://connect.linaro.org
I have collected all the necessary information about various hardware blocks of Nvidia Tegra K1 processor and put them together. It would be helpful for those who are/going to work on it by giving the details in a very concise fashion.
directCell - Cell/B.E. tightly coupled via PCI ExpressHeiko Joerg Schick
This document summarizes new features in PCI Express Gen 3, including Atomic Operations, TLP Processing Hints, TLP Prefix, Resizable BAR, and others. It describes how each feature enhances PCI Express functionality, such as enabling atomic operations to facilitate migration of SMP applications to PCIe accelerators, and TLP Prefix allowing expansion of header sizes to carry additional information.
HKG15-505: Power Management interactions with OP-TEE and Trusted FirmwareLinaro
The document discusses power management in ARMv8-A and the integration of OP-TEE with the ARM Trusted Firmware. It provides an overview of the software stack and PSCI requirements. It then describes OP-TEE's system view and how it integrates with ARM Trusted Firmware as a runtime service. Finally, it discusses the programmer's view of PSCI and provides examples of how CPU_ON, CPU_OFF, and CPU_SUSPEND operations are handled between Linux, ARM Trusted Firmware, and OP-TEE.
This document provides an overview of an embedded systems course that focuses on the LPC 2148 ARM processor. The objectives are to study the architecture and design aspects of the LPC 2148, including I/O and memory interfacing. The outcomes include designing and implementing programs on the LPC 2148 as well as studying communication interfaces and scheduling algorithms. The course is divided into 5 modules that cover the ARM instruction set, LPC 2148 architecture, peripherals, operating system overview, and the μC/OS-II real-time kernel. Learning resources include textbooks on embedded systems, ARM architecture, and real-time concepts.
This document provides information about the ARM7 microcontroller LPC2148. It discusses the features of the LPC2148 including its memory, speed, interfaces, and peripherals. It also describes the ARM7TDMI-S architecture and software tools that can be used for programming the LPC2148 such as compilers, debuggers, and IDEs. Finally, it discusses some example applications of the LPC2148 and how to interface it with an LCD and communicate using UART.
The document introduces the Freescale i.MX233 application processor. It provides details on the processor's features such as its ARM926EJ-STM core running at 454MHz, integrated peripherals like USB 2.0 PHY and audio codec, and supported memory types. Target applications include portable media players, navigation devices, and industrial/embedded systems. Block diagrams and descriptions of the processor, external memory controller, and evaluation kit are also included.
The MYC-CZU3EG CPU Module is a powerful MPSoC System-on-Module (SoM) based on Xilinx Zynq UltraScale+ ZU3EG which features a 1.2 GHz quad-core ARM Cortex-A53 64-bit application processor
AAME ARM Techcon2013 004v02 Debug and OptimizationAnh Dung NGUYEN
This document discusses software debug and optimization techniques for ARM Cortex-M microcontrollers. It covers the following key points in 3 sentences:
The document discusses various debug tools and components used for ARM Cortex-M microcontrollers, including the Keil MDK development suite, debug hardware interfaces, and the Flash Patch and Breakpoint, Data Watchpoint and Trace, and Instrumentation Trace Macrocell components. It also covers compiler configuration and optimization techniques in ARM's compiler such as setting the optimization level and architecture, using volatile variables properly, and enabling instruction scheduling. The document provides an overview of debug modes, breakpoints, and trace features supported by the Cortex-M architecture as well as the various physical debug interfaces that can
Introducing OMAP-L138/AM1808 Processor Architecture and Hawkboard PeripheralsPremier Farnell
The document introduces the OMAP-L138/AM1808 processor architecture and peripherals on the Hawkboard. It discusses the OMAP-L138 processor which features an ARM9 and DSP subsystem. It also describes the programmable real-time unit (PRU) subsystem which provides additional control and customization. Finally, it provides an overview of various peripherals including SATA, MMC/SD, EMAC, USB, LCD controller, and pulse width modulators.
Hardware accelerated Virtualization in the ARM Cortex™ ProcessorsThe Linux Foundation
The document discusses hardware accelerated virtualization capabilities in ARM Cortex processors including the Cortex-A15. It describes new features like large physical addressing, virtualization extensions, and a virtual interrupt controller that allow multiple operating system instances and work environments to run simultaneously in isolation on ARM devices.
This document discusses embedded and real-time systems based on ARM architecture. It covers the three modes of operation in ARM: ARM instruction set, Thumb instruction set, and Jazelle-DBX/RCT for accelerating Java and supporting interpreted languages. It also summarizes the different ARM architecture versions from ARMv7 to ARMv8, describing their instruction sets and features. Finally, it provides overviews of ARM registers, memory organization, and other key concepts.
Exploring Compiler Optimization Opportunities for the OpenMP 4.x Accelerator...Akihiro Hayashi
Third Workshop on Accelerator Programming Using Directives (WACCPD2016, co-located with SC16)
While GPUs are increasingly popular for high-performance
computing, optimizing the performance of GPU programs is a time-consuming and non-trivial process in general. This complexity stems from the low abstraction level of standard
GPU programming models such as CUDA and OpenCL:
programmers are required to orchestrate low-level operations
in order to exploit the full capability of GPUs. In terms of
software productivity and portability, a more attractive approach
would be to facilitate GPU programming by providing high-level
abstractions for expressing parallel algorithms.
OpenMP is a directive-based shared memory parallel programming model and has been widely used for many years.
From OpenMP 4.0 onwards, GPU platforms are supported
by extending OpenMP’s high-level parallel abstractions with
accelerator programming. This extension allows programmers to
write GPU programs in standard C/C++ or Fortran languages,
without exposing too many details of GPU architectures.
However, such high-level parallel programming strategies generally impose additional program optimizations on compilers,
which could result in lower performance than fully hand-tuned
code with low-level programming models.To study potential
performance improvements by compiling and optimizing high-level GPU programs, in this paper, we 1) evaluate a set of
OpenMP 4.x benchmarks on an IBM POWER8 and NVIDIA
Tesla GPU platform and 2) conduct a comparable performance
analysis among hand-written CUDA and automatically-generated
GPU programs by the IBM XL and clang/LLVM compilers.
The document provides an overview of the STM32 MCU family from STMicroelectronics. It discusses the key features such as an ARM Cortex-M3 core, Flash memory up to 512KB, SRAM up to 64KB, low power modes, timers, and communication peripherals. It also outlines the applications for industrial equipment, appliances, low power devices, and consumer electronics. Finally, it gives a high-level description of the system architecture and various peripherals including DMA, ADC, DAC, communication interfaces, and watchdogs.
The document provides an overview of the Stellaris 9000 family of ARM Cortex-M3 microcontrollers from Texas Instruments. It describes the four generations of Stellaris MCUs, their features and applications. It also discusses the ARM Cortex-M3 processor core, development tools and software support for the Stellaris family.
The document describes the ARMv7-A architecture and its support for large physical addresses (LPAE) in Linux. Key points include:
- ARMv7-A supports LPAE through a 3-level translation table that maps 40-bit virtual addresses to 40-bit physical addresses.
- Linux implements LPAE by modifying page table definitions, extending the swapper page directory to cover three levels, and adapting functions for setting page table entries and switching address spaces.
- Low memory is mapped with 2MB sections while page tables can be allocated from high memory. Exception handling and PGD allocation/freeing were also updated for LPAE.
This presentation is about such well-known vulnerabilities as Meltdown and Spectre and the way they use imperfections of modern processors on an architectural level. In this regard, ARM architecture, which is now a standard in embedded system, is discussed.
The talk was delivered by Andrii Lukin (Senior Software Engineer, Consultant, GlobalLogic) at GlobalLogic Embedded Career Day #2 on February 10, 2018.
More about GlobalLogic Embedded Career Day #2: https://www.globallogic.com/ua/events/globallogic-kyiv-embedded-career-day-2-materials
Deep Learning Neural Network Acceleration at the Edge - Andrea GalloLinaro
Short
The growing amount of data captured by sensors and the real time constraints imply that not only big data analytics but also Machine Learning (ML) inference shall be executed at the edge. The multiple options for neural network acceleration in Arm-based platforms provide an unprecedented opportunity for new intelligent devices. It also raises the risk of fragmentation and duplication of efforts when multiple frameworks shall support multiple accelerators.
Andrea Gallo, Linaro VP of Segment Groups, will summarise the existing NN frameworks, accelerator solutions, and will describe the efforts underway in the Arm ecosystem.
Abstract
The dramatically growing amount of data captured by sensors and the ever more stringent requirements for latency and real time constraints are paving the way for edge computing, and this implies that not only big data analytics but also Machine Learning (ML) inference shall be executed at the edge. The multiple options for neural network acceleration in recent Arm-based platforms provides an unprecedented opportunity for new intelligent devices with ML inference. It also raises the risk of fragmentation and duplication of efforts when multiple frameworks shall support multiple accelerators.
Andrea Gallo, Linaro VP of Segment Groups, will summarise the existing NN frameworks, model description formats, accelerator solutions, low cost development boards and will describe the efforts underway to identify the best technologies to improve the consolidation and enable the competitive innovative advantage from all vendors.
Audience
The session will be useful for executives to engineers. Executives will gain a deeper understanding of the issues and opportunities. Engineers at NN acceleration IP design houses will take away ideas for how to collaborate in the open source community on their area of expertise, how to evaluate the performance and accelerate multiple NN frameworks without modifying them for each new IP, whether it be targeting edge computing gateways, smart devices or simple microcontrollers.
Benefits to the Ecosystem
The AI deep learning neural network ecosystem is starting just now and it has similar implications with open source as GPU and video accelerators had in the early days with user space drivers, binary blobs, proprietary APIs and all possible ways to protect their IPs. The session will outline a proposal for a collaborative ecosystem effort to create a common framework to manage multiple NN accelerators while at the same time avoiding to modify deep learning frameworks with multiple forks.
Arm Architecture HPC Workshop Santa Clara 2018 - Kanta VekariaLinaro
The document summarizes an Arm Architecture HPC Workshop held by Linaro. It discusses Linaro's work in open source software development for Arm architecture, including efforts in HPC, tools, libraries, and machine learning. It also mentions Linaro's Developer Cloud which provides access to Arm hardware for developers.
Huawei’s requirements for the ARM based HPC solution readiness - Joshua MoraLinaro
Huawei outlines requirements for developing a competitive ARM-based HPC solution. They plan a two-phase strategy using existing Hi1616 platforms followed by more powerful Hi1620 platforms. Requirements include high-performance CPUs, optimized software stack, support for applications and ISVs, and cloud deployment. Huawei aims to demonstrate ARM's value in HPC by 2018-2020 through partnerships and turnkey solutions.
Bud17 113: distribution ci using qemu and open qaLinaro
“Delivering a well working distribution is hard. There are a lot of different hardware platforms that need to be verified and the software stack is in a big flux during development phases. In rolling releases, this gets even worse, as nothing ever stands still. The only sane answer to that problem are working Continuous Integration tests. The SUSE way to check whether any change breaks normal distribution behavior is OpenQA. Using OpenQA we can automatically run tests that hard working QA people did manually in the old days. That way we have fast enough turnaround times to find and reject breaking changes This session shows how OpenQA works, what pitfalls we had to make ARM work with OpenQA and what we’re doing to improve it for ARM specific use cases.”
OpenHPC Automation with Ansible - Renato Golin - Linaro Arm HPC Workshop 2018Linaro
Speaker: Renato Golin
Speaker Bio:
He started programming in the late 80's in C for PCs after a few years playing with 8-bit computers, but he only started programming professionally in the late 90's during the .com bubble. After many years working on Internet's back-end, he moved to UK and worked a few years on bioinformatics at EBI before joining ARM, where he worked on the DS-5 debugger and on the EDG-to-LLVM bridge, where he became the LLVM Tech Lead. Recently, he worked with large clusters and big data at HPCC before moving to Linaro.
Talk Title: OpenHPC Automation with Ansible
Talk Abstract: "In order to test OpenHPC packages and components and to use it as a
platform to benchmark HPC applications, Linaro is developing an automated deployment strategy, using Ansible, Mr-Provisioner and Jenkins, to install the
OS, OpenHPC and prepare the environment on varied architectures (Arm, x86). This work is meant to replace the existing ageing Bash-based recipes upstream while still keeping the documents intact. Our aim is to make it easier to vary hardware configuration, allow for different provisioning techniques and mix internal infrastructure logic to different labs, while still using the same recipes. We hope this will help more people use OpenHPC with a better out-of-the-box experience and with more robust results"
HPC network stack on ARM - Linaro HPC Workshop 2018Linaro
Speaker: Pavel Shamis
Company: Arm
Speaker Bio:
"Pavel is a Principal Research Engineer at ARM with over 16 years of experience in development HPC solutions. His work is focused on co-design software and hardware building blocks for high-performance interconnect technologies, development communication middleware and novel programming models. Prior to joining ARM, he spent five years at Oak Ridge National Laboratory (ORNL) as a research scientist at Computer Science and Math Division (CSMD). In this role, Pavel was responsible for research and development multiple projects in high-performance communication domain including: Collective Communication Offload (CORE-Direct & Cheetah), OpenSHMEM, and OpenUCX. Before joining ORNL, Pavel spent ten years at Mellanox Technologies, where he led Mellanox HPC team and was one of the key driver in enablement Mellanox HPC software stack, including OFA software stack, OpenMPI, MVAPICH, OpenSHMEM, and other.
Pavel is a recipient of prestigious R&D100 award for his contribution in development of the CORE-Direct collective offload technology and he published in excess of 20 research papers.
"
Talk Title: HPC network stack on ARM
Talk Abstract:
Applications, programming languages, and libraries that leverage sophisticated network hardware capabilities have a natural advantage when used in today¹s and tomorrow's high-performance and data center computer environments. Modern RDMA based network interconnects provides incredibly rich functionality (RDMA, Atomics, OS-bypass, etc.) that enable low-latency and high-bandwidth communication services. The functionality is supported by a variety of interconnect technologies such as InfiniBand, RoCE, iWARP, Intel OPA, Cray¹s Aries/Gemini, and others. Over the last decade, the HPC community has developed variety user/kernel level protocols and libraries that enable a variety of high-performance applications over RDMA interconnects including MPI, SHMEM, UPC, etc. With the emerging availability HPC solutions based on ARM CPU architecture it is important to understand how ARM integrates with the RDMA hardware and HPC network software stack. In this talk, we will overview ARM architecture and system software stack, including MPI runtimes, OpenSHMEM, and OpenUCX.
It just keeps getting better - SUSE enablement for Arm - Linaro HPC Workshop ...Linaro
Speaker: Jay Kruemcke
Speaker Company: SUSE
Bio:
"Jay is responsible for the SUSE Linux server products for High Performance Computing, 64-bit ARM systems, and SUSE Linux for IBM Power servers.
Jay has built an extensive career in product management including using social media for client collaboration, product positioning, driving future product directions, and evangelizing the capabilities and future directions for dozens of enterprise products.
"
Talk Title: It just keeps getting better - SUSE enablement for Arm
Talk Abstract:
SUSE has been delivering commercial Linux support for Arm based servers since 2016. Initially the focus was on high end servers for HPC and Ceph based software defined storage. But we have enabled a number of other Arm SoCs and are even supporting the Raspberry Pi. This session will cover the SUSE products that are available for the Arm platform and view to the future.
Intelligent Interconnect Architecture to Enable Next Generation HPC - Linaro ...Linaro
Speakers: Gilad Shainer and Scot Schultz
Company: Mellanox Technologies
Talk Title: Intelligent Interconnect Architecture to Enable Next
Generation HPC
Talk Abstract:
The latest revolution in HPC interconnect architecture is the development of In-Network Computing, a technology that enables handling and accelerating application workloads at the network level. By placing data-related algorithms on an intelligent network, we can overcome the new performance bottlenecks and improve the data center and applications performance. The combination of In-Network Computing and ARM based processors offer a rich set of capabilities and opportunities to build the next generation of HPC platforms.
Gilad Shainer Bio:
Gilad Shainer has served as Mellanox's vice president of marketing since March 2013. Previously, Mr. Shainer was Mellanox's vice president of marketing development from March 2012 to March 2013. Mr. Shainer joined Mellanox in 2001 as a design engineer and later served in senior marketing management roles between July 2005 and February 2012. Mr. Shainer holds several patents in the field of high-speed networking and contributed to the PCI-SIG PCI-X and PCIe specifications. Gilad Shainer holds a MSc degree (2001, Cum Laude) and a BSc degree (1998, Cum Laude) in Electrical Engineering from the Technion Institute of Technology in Israel.
Scot Schultz Bio:
Scot Schultz is a HPC technology specialist with broad knowledge in operating systems, high speed interconnects and processor technologies. Joining the Mellanox team in 2013, Schultz is 30-year veteran of the computing industry. Prior to joining Mellanox, he spent the past 17 years at AMD in various engineering and leadership roles in the area of high performance computing. Scot has also been instrumental with the growth and development of various industry organizations including the Open Fabrics Alliance, and continues to serve as a founding board-member of the OpenPOWER Foundation and Director of Educational Outreach and founding member of the HPC-AI Advisory Council.
Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Sant...Linaro
Yutaka Ishikawa - Post-K and Arm HPC Ecosystem - Linaro Arm HPC Workshop Santa Clara 2018
Bio: "Yutaka Ishikawa is the project leader of developing the post K
supercomputer. From 1987 to 2001, he was a member of AIST (former
Electrotechnical Laboratory), METI. From 1993 to 2001, he was the
chief of Parallel and Distributed System Software Laboratory at Real
World Computing Partnership. He led development of cluster system
software called SCore, which was used in several large PC cluster
systems around 2004. From 2002 to 2014, he was a professor at the
University Tokyo. He led a project to design a commodity-based
supercomputer called T2K open supercomputer. As a result, three
universities, Tsukuba, Tokyo, and Kyoto, obtained each supercomputer
based on the specification in 2008. He was also involved with the
design of the Oakleaf-PACS, the successor of T2K supercomputer in both
Tsukuba and Tokyo, whose peak performance is 25PF."
Session Title: Post-K and Arm HPC Ecosystem
Session Description:
"Post-K, a flagship supercomputer in Japan, is being developed by Riken
and Fujitsu. It will be the first supercomputer with Armv8-A+SVE.
This talk will give an overview of Post-K and how RIKEN and Fujitsu
are currently working on software stack for an Arm architecture."
Andrew J Younge - Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Su...Linaro
Event: Arm Architecture HPC Workshop by Linaro and HiSilicon
Location: Santa Clara, CA
Speaker: Andrew J Younge
Talk Title: Vanguard Astra - Petascale Arm Platform for U.S. DOE/ASC Supercomputing
Talk Desc: The Vanguard program looks to expand the potential technology choices for leadership-class High Performance Computing (HPC) platforms, not only for the National Nuclear Security Administration (NNSA) but for the Department of Energy (DOE) and wider HPC community. Specifically, there is a need to expand the supercomputing ecosystem by investing and developing emerging, yet-to-be-proven technologies and address both hardware and software challenges together, as well as to prove-out the viability of such novel platforms for production HPC workloads.
The first deployment of the Vanguard program will be Astra, a prototype Petascale Arm supercomputer to be sited at Sandia National Laboratories during 2018. This talk will focus on the arthictecural details of Astra and the significant investments being made towards the maturing the Arm software ecosystem. Furthermore, we will share initial performance results based on our pre-general availability testbed system and outline several planned research activities for the machine.
Bio: Andrew Younge is a R&D Computer Scientist at Sandia National Laboratories with the Scalable System Software group. His research interests include Cloud Computing, Virtualization, Distributed Systems, and energy efficient computing. Andrew has a Ph.D in Computer Science from Indiana University, where he was the Persistent Systems fellow and a member of the FutureGrid project, an NSF-funded experimental cyberinfrastructure test-bed. Over the years, Andrew has held visiting positions at the MITRE Corporation, the University of Southern California / Information Sciences Institute, and the University of Maryland, College Park. He received his Bachelors and Masters of Science from the Computer Science Department at Rochester Institute of Technology (RIT) in 2008 and 2010, respectively.
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainlineLinaro
Session ID: HKG18-501
Session Name: HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
Speaker: Chris Redpath
Track: Mobile, Kernel
★ Session Summary ★
This session will introduce the changes to EAS planned for 4.14 kernel, and how Arm hopes that EAS will develop in future. EAS has already evolved from an Arm/Linaro joint project to involving a much wider community of SoC vendors, Google and interested device manufacturers. We will highlight the product-specific pieces remaining in the Android Common Kernel EAS implementation, and our plans to provide an upstreaming plan for each product feature. In particular, the new 'simplified energy model' is designed to provide mainline-friendliness and comparable performance using a simple DT expression of cpu power/performance.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-501/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-501.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-501.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Mobile, Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961
HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainlineLinaro
"Session ID: HKG18-501
Session Name: HKG18-501 - EAS on Common Kernel 4.14 and getting (much) closer to mainline
Speaker: Chris Redpath
Track: Mobile, Kernel
★ Session Summary ★
This session will introduce the changes to EAS planned for 4.14 kernel, and how Arm hopes that EAS will develop in future. EAS has already evolved from an Arm/Linaro joint project to involving a much wider community of SoC vendors, Google and interested device manufacturers. We will highlight the product-specific pieces remaining in the Android Common Kernel EAS implementation, and our plans to provide an upstreaming plan for each product feature. In particular, the new 'simplified energy model' is designed to provide mainline-friendliness and comparable performance using a simple DT expression of cpu power/performance.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-501/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-501.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-501.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Mobile, Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-315 - Why the ecosystem is a wonderful thing, warts and allLinaro
"Session ID: HKG18-315
Session Name: HKG18-315 - Why the ecosystem is a wonderful thing warts and all
Speaker: Andrew Wafaa
Track: Ecosystem Day
★ Session Summary ★
The Arm ecosystem is a vibrant place, but it's not always smooth sailing. This presentation will go through the highs and lows of getting the ecosystem fully Arm enabled.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-315/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-315.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-315.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Ecosystem Day
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18- 115 - Partitioning ARM Systems with the Jailhouse HypervisorLinaro
"Session ID: HKG18-115
Session Name: HKG18-115 - Partitioning ARM Systems with the Jailhouse Hypervisor
Speaker: Jan Kiszka
Track: Security
★ Session Summary ★
The open source hypervisor Jailhouse provides hard partitioning of multicore systems to co-locate multiple Linux or RTOS instances side by side. It aims at low complexity and minimal footprint to achieve deterministic behavior and enable certifications according to safety or security standards. In this session, we would like to look at the ARM-specific status of Jailhouse and discuss applications, to-dos and possible collaborations around it with the ARM community. The session is intended to be half presentation, half Q&A / discussion.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-115/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-115.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-115.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Security
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
"Session ID: HKG18-TR08
Session Name: HKG18-TR08 - Upstreaming SVE in QEMU
Speaker: Alex Bennée,Richard Henderson
Track: Enterprise
★ Session Summary ★
ARM's Scalable Vector Extensions is an innovative solution to processing highly data parallel workloads. While several out-of-tree attempts at implementing SVE support for QEMU existed, we took a fundamentally different approach to solving key challenges and therefore pursued a from-scratch QEMU SVE implementation in Linaro. Our strategic choice was driven by several factors. First as an ""upstream first"" organisation we were focused on a solution that would be readily accepted by the upstream project. This entailed doing our development in the open on the project mailing lists where early feedback and community consensus can be reached.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-tr08/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-tr08.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-tr08.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Enterprise
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-113- Secure Data Path work with i.MX8MLinaro
"Session ID: HKG18-113
Session Name: HKG18-113 - Secure Data Path work with i.MX8M
Speaker: Cyrille Fleury
Track: Digital Home
★ Session Summary ★
NXP presentation on Secure Data Path work with i.MX8M Soc. Demonstrate 4K PlayReady playback with Android 8.1 running on i.MX8M. Focus on security (MS SL3000 and Widevine level 1)
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-113/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-113.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-113.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Digital Home
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
HKG18-120 - Devicetree Schema Documentation and Validation Linaro
"Session ID: HKG18-120
Session Name: HKG18-120 - Structured Documentation and Validation for Device Tree
Speaker: Grant Likely
Track: Kernel
★ Session Summary ★
Devicetree has become the dominant hardware configuration language used when building embedded systems. Projects using Devicetree now include Linux, U-Boot, Android, FreeBSD, and Zephyr. However, it is notoriously difficult to write correct Devicetree data files. The dtc tools perform limited tests for valid data, and there there is not yet a way to add validity test for specific hardware descriptions. Neither is there a good way to document requirements for specific bindings. Work is underway to solve these problems. This session will present a proposal for adding Devicetree schema files to the Devicetree toolchain that can be used to both validate data and produce usable documentation.
---------------------------------------------------
★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-120/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-120.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-120.mp4
---------------------------------------------------
★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
---------------------------------------------------
Keyword: Kernel
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
"Session ID: HKG18-223
Session Name: HKG18-223 - Trusted Firmware M : Trusted Boot
Speaker: Tamas Ban
Track: LITE
★ Session Summary ★
An overview of the trusted boot concept and firmware update on the ARMv8-M based platform and how MCUBoot acts as a BL2 bootloader for TF-M.
Trusted Firmware M
In October 2017, Arm announced the vision of Platform Security Architecture (PSA) - a common framework to allow everyone in the IoT ecosystem to move forward with stronger, scalable security and greater confidence. There are three key stages to the Platform Security Architecture: Analysis, Architecture and Implementation which are described at https://developer.arm.com/products/architecture/platform-security-architecture.
_Trusted Firmware M, i.e. TF-M, is the Arm project to provide an open source reference implementation firmware that will conform to the PSA specification for M-Class devices. Early access to TF-M was released in December 2017 and it is being made public during Linaro Connect. The implementation should be considered a prototype until the PSA specifications reach release state and the code aligns._
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★ Resources ★
Event Page: http://connect.linaro.org/resource/hkg18/hkg18-223/
Presentation: http://connect.linaro.org.s3.amazonaws.com/hkg18/presentations/hkg18-223.pdf
Video: http://connect.linaro.org.s3.amazonaws.com/hkg18/videos/hkg18-223.mp4
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★ Event Details ★
Linaro Connect Hong Kong 2018 (HKG18)
19-23 March 2018
Regal Airport Hotel Hong Kong
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Keyword: LITE
'http://www.linaro.org'
'http://connect.linaro.org'
---------------------------------------------------
Follow us on Social Media
https://www.facebook.com/LinaroOrg
https://www.youtube.com/user/linaroorg?sub_confirmation=1
https://www.linkedin.com/company/1026961"
zkStudyClub - Reef: Fast Succinct Non-Interactive Zero-Knowledge Regex ProofsAlex Pruden
This paper presents Reef, a system for generating publicly verifiable succinct non-interactive zero-knowledge proofs that a committed document matches or does not match a regular expression. We describe applications such as proving the strength of passwords, the provenance of email despite redactions, the validity of oblivious DNS queries, and the existence of mutations in DNA. Reef supports the Perl Compatible Regular Expression syntax, including wildcards, alternation, ranges, capture groups, Kleene star, negations, and lookarounds. Reef introduces a new type of automata, Skipping Alternating Finite Automata (SAFA), that skips irrelevant parts of a document when producing proofs without undermining soundness, and instantiates SAFA with a lookup argument. Our experimental evaluation confirms that Reef can generate proofs for documents with 32M characters; the proofs are small and cheap to verify (under a second).
Paper: https://eprint.iacr.org/2023/1886
GridMate - End to end testing is a critical piece to ensure quality and avoid...ThomasParaiso2
End to end testing is a critical piece to ensure quality and avoid regressions. In this session, we share our journey building an E2E testing pipeline for GridMate components (LWC and Aura) using Cypress, JSForce, FakerJS…
In his public lecture, Christian Timmerer provides insights into the fascinating history of video streaming, starting from its humble beginnings before YouTube to the groundbreaking technologies that now dominate platforms like Netflix and ORF ON. Timmerer also presents provocative contributions of his own that have significantly influenced the industry. He concludes by looking at future challenges and invites the audience to join in a discussion.
Epistemic Interaction - tuning interfaces to provide information for AI supportAlan Dix
Paper presented at SYNERGY workshop at AVI 2024, Genoa, Italy. 3rd June 2024
https://alandix.com/academic/papers/synergy2024-epistemic/
As machine learning integrates deeper into human-computer interactions, the concept of epistemic interaction emerges, aiming to refine these interactions to enhance system adaptability. This approach encourages minor, intentional adjustments in user behaviour to enrich the data available for system learning. This paper introduces epistemic interaction within the context of human-system communication, illustrating how deliberate interaction design can improve system understanding and adaptation. Through concrete examples, we demonstrate the potential of epistemic interaction to significantly advance human-computer interaction by leveraging intuitive human communication strategies to inform system design and functionality, offering a novel pathway for enriching user-system engagements.
DevOps and Testing slides at DASA ConnectKari Kakkonen
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Climate Impact of Software Testing at Nordic Testing DaysKari Kakkonen
My slides at Nordic Testing Days 6.6.2024
Climate impact / sustainability of software testing discussed on the talk. ICT and testing must carry their part of global responsibility to help with the climat warming. We can minimize the carbon footprint but we can also have a carbon handprint, a positive impact on the climate. Quality characteristics can be added with sustainability, and then measured continuously. Test environments can be used less, and in smaller scale and on demand. Test techniques can be used in optimizing or minimizing number of tests. Test automation can be used to speed up testing.
Threats to mobile devices are more prevalent and increasing in scope and complexity. Users of mobile devices desire to take full advantage of the features
available on those devices, but many of the features provide convenience and capability but sacrifice security. This best practices guide outlines steps the users can take to better protect personal devices and information.
Enchancing adoption of Open Source Libraries. A case study on Albumentations.AIVladimir Iglovikov, Ph.D.
Presented by Vladimir Iglovikov:
- https://www.linkedin.com/in/iglovikov/
- https://x.com/viglovikov
- https://www.instagram.com/ternaus/
This presentation delves into the journey of Albumentations.ai, a highly successful open-source library for data augmentation.
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This case study covers various aspects, including:
People: The contributors and community that have supported Albumentations.
Metrics: The success indicators such as downloads, daily active users, GitHub stars, and financial contributions.
Challenges: The hurdles in monetizing open-source projects and measuring user engagement.
Development Practices: Best practices for creating, maintaining, and scaling open-source libraries, including code hygiene, CI/CD, and fast iteration.
Community Building: Strategies for making adoption easy, iterating quickly, and fostering a vibrant, engaged community.
Marketing: Both online and offline marketing tactics, focusing on real, impactful interactions and collaborations.
Mental Health: Maintaining balance and not feeling pressured by user demands.
Key insights include the importance of automation, making the adoption process seamless, and leveraging offline interactions for marketing. The presentation also emphasizes the need for continuous small improvements and building a friendly, inclusive community that contributes to the project's growth.
Vladimir Iglovikov brings his extensive experience as a Kaggle Grandmaster, ex-Staff ML Engineer at Lyft, sharing valuable lessons and practical advice for anyone looking to enhance the adoption of their open-source projects.
Explore more about Albumentations and join the community at:
GitHub: https://github.com/albumentations-team/albumentations
Website: https://albumentations.ai/
LinkedIn: https://www.linkedin.com/company/100504475
Twitter: https://x.com/albumentations
Communications Mining Series - Zero to Hero - Session 1DianaGray10
This session provides introduction to UiPath Communication Mining, importance and platform overview. You will acquire a good understand of the phases in Communication Mining as we go over the platform with you. Topics covered:
• Communication Mining Overview
• Why is it important?
• How can it help today’s business and the benefits
• Phases in Communication Mining
• Demo on Platform overview
• Q/A
Dr. Sean Tan, Head of Data Science, Changi Airport Group
Discover how Changi Airport Group (CAG) leverages graph technologies and generative AI to revolutionize their search capabilities. This session delves into the unique search needs of CAG’s diverse passengers and customers, showcasing how graph data structures enhance the accuracy and relevance of AI-generated search results, mitigating the risk of “hallucinations” and improving the overall customer journey.
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Monitoring and observability aren’t traditionally found in software curriculums and many of us cobble this knowledge together from whatever vendor or ecosystem we were first introduced to and whatever is a part of your current company’s observability stack.
While the dev and ops silo continues to crumble….many organizations still relegate monitoring & observability as the purview of ops, infra and SRE teams. This is a mistake - achieving a highly observable system requires collaboration up and down the stack.
I, a former op, would like to extend an invitation to all application developers to join the observability party will share these foundational concepts to build on:
Securing your Kubernetes cluster_ a step-by-step guide to success !KatiaHIMEUR1
Today, after several years of existence, an extremely active community and an ultra-dynamic ecosystem, Kubernetes has established itself as the de facto standard in container orchestration. Thanks to a wide range of managed services, it has never been so easy to set up a ready-to-use Kubernetes cluster.
However, this ease of use means that the subject of security in Kubernetes is often left for later, or even neglected. This exposes companies to significant risks.
In this talk, I'll show you step-by-step how to secure your Kubernetes cluster for greater peace of mind and reliability.
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Join Maher Hanafi, VP of Engineering at Betterworks, in this new session where he'll share a practical framework to transform Gen AI prototypes into impactful products! He'll delve into the complexities of data collection and management, model selection and optimization, and ensuring security, scalability, and responsible use.
Encryption in Microsoft 365 - ExpertsLive Netherlands 2024Albert Hoitingh
In this session I delve into the encryption technology used in Microsoft 365 and Microsoft Purview. Including the concepts of Customer Key and Double Key Encryption.
2. 2
Current Status
KVM merged for 3.11
Marc Zyngier maintainer
Supporting both AArch64 and AArch32 guests
Hardware-assisted Stage 2 MMU translation, generic timers, GIC
kvmtool
Xen merged for 3.11
Stefano Stabellini (Citrix) maintainer
Hugetlbfs, transparent huge pages merged
Code sharing with x86
SMP booting protocols
Spin-table
PSCI (Power State Coordination Interface)
3. 3
Current Status (2)
SoC support for ARMv8 software models
Versatile Express like
Code under drivers/
GIC shared with arch/arm/ and secondary CPU interface initialisation
via CPU notifiers
Generic timers shared with arch/arm/
Vexpress reset moved to drivers/power/reset/
Still no DT-aware CLCD driver in mainline
Initial support for Applied X-Gene SoC
.dts file under arch/arm64/
Code under drivers/ being pushed via corresponding maintainers
soc-armv8-model branch no longer needed (unless CLCD
support for ARMv8 models is required)
4. 4
New Developments
Power management (cpuidle), CPU hotplug
Based on PSCI firmware calls
Support for new ARM IP
Processors (Cortex-A53/A57)
GICv3 (> 8 CPUs)
SMMU
PCIe
Scope for code sharing with PowerPC/MIPS/AArch32
Optimisations [Linaro]
Linux klib (memcpy etc.) based on the Cortex Strings library
Debugging [Linaro]
kprobes, uprobes, ftrace, kgdb
Kexec, kernel crashdump [Linaro]
5. 5
New Developments (2)
UEFI run-time services [Linaro]
ACPI [Linaro]
New SoCs
Mainly under drivers/
CPU topology, caches
Current development for AArch32
KVM
PMU support [ARM/Linaro]
VFIO support [ARM/Linaro]
Live migration [Linaro]
GICv3 (> 8 vCPUs)
IOMMU API extensions
Stage 2 translation
6. 6
New Developments (3)
Ticket spinlocks
Optimised ASID allocator
Tagged pointers
Top 8-bit used as a tag in user-space pointers
ILP32
7. 7
Enabling SoCs for AArch64
Pre-Linux (firmware, boot loader) requirements
Requirements in Documentation/arm64/booting.txt
Device tree required
Linux (all CPUs) entered at EL2 for virtualisation support
PSCI (Power State Coordination Interface) strongly recommended
It may not possible on CPUs without EL3 (alternative spin-table
method for booting secondary CPUs)
CPUs, enable-method described via DT
cpu_logical_map populated from DT
Standard devices (described via DT)
GIC (v2, v3)
Generic timers (compatible = “arm,armv8-timer”)
Timer frequency specified either via DT or in register
(CNTFRQ_EL0, usually set by firmware)
8. 8
Enabling SoCs for AArch64 (2)
Clock drivers
Code under drivers/clk/
Use CLK_OF_DECLARE() and corresponding DT entries
of_clk_init() called from arm64_device_init() (arch_initcall)
of_platform_populate() used for additional devices
Called from arm64_device_init() (arch_initcall)
Early printk support
Assuming UART port initialised by firmware prior to Linux
Simple “printch” function in arch/arm64/kernel/early_printk.c
Command line argument: earlyprintk=<name>[,<addr>][,<options>]
Other device drivers
Preferably loadable modules unless essential for booting
9. 9
Enabling SoCs for AArch64 (3)
Multi-platform mandatory
No ARCH_* in arch/arm64/Kconfig
Drivers Kconfig entries dependent on ARM64
Existing ARCH_* entries to be removed
arch/arm64/configs/defconfig enables all supported SoCs
DTS files go under arch/arm64/boot/dts/
Similar to the AArch32 SoC requirements
“Your new ARM SoC Linux support check-list” (Thomas Petazzoni)
http://elinux.org/images/a/ad/Arm-soc-checklist.pdf
But without arch/arm64/mach-*/ directories