With the rapid development of domestic information technology systems, an increasing number of devices are adopting non-x86 architecture CPUs, such as ARM, Loongson, Shenwei, and RISC-V. Among them, the ARM architecture holds a significant market share due to its wide application, with Feiteng and Huawei Kirin being the main representatives of ARM architecture. When developing … Read more
ver0.1 Introduction The previous article introduced the system architecture for directly injecting virtual interrupts into VMs under the GIC framework. We detailed the background of directly injecting interrupts into VMs and how to remap MSI into virtual interrupts for reinjection into vPE with the support of GIC hardware. Of course, this process also requires assistance … Read more
ver0.2 Introduction In the previous article, we introduced the basic architecture and routing mechanism of LPI-type interrupts. I believe everyone is now somewhat familiar with LPI-type interrupts, at least understanding the difference between bus-based (Message) and hardwired (Signal) interrupt types. We also discussed the basic architecture and working principles of GIC physical interrupt virtualization. However, … Read more
As we all know, the competition in the smartphone market has become increasingly fierce in recent years. On one hand, this has directly led manufacturers to actively develop their own proprietary technology systems, competing for top positions in areas such as imaging, display, and fast charging; on the other hand, the proactive attitude of smartphone … Read more
Click the above Computer Enthusiasts to follow us Intel once attempted to integrate X86 architecture processors (Atom) into mobile devices represented by smartphones and tablets, but ultimately failed.As the saying goes, “If you come, you must reciprocate.” Since Intel could bring X86 over, ARM can naturally retaliate.Thus, we have seen Microsoft’s own Surface RT, as … Read more
Hello everyone, I am Engineer Wang. Today, let’s learn about a company, named: Rockchip Electronics Co., Ltd. (“Rockchip”, stock code: 603893). The reason for introducing this company is that their chips are widely used, and in the embedded field, there are very few hardware engineers who are unaware of them. 011 Introduction Our daily routine … Read more
Despite the encroachment of processor architectures like x86 and RISC-V, ARM has experienced counter-cyclical growth—over 30 billion ARM chips shipped globally in 2023, dominating 95% of the mobile market. It can be said that ARM remains resilient, but what is the reason behind this? 1. Absolute Notification of Energy Efficiency Ratio ① Performance per watt … Read more
How to promote joint research and development between chip companies and terminal companies, enabling chip companies to better understand users, allowing mobile phone companies to delve deeper into chip development, and swiftly addressing user pain points has always been a key topic of discussion and thought in the industry. Author: Su Yi Editor: Zi Qi … Read more
Unlike traditional semiconductor devices, flexible electronic devices are built on substrates such as paper, plastic, or metal foils, utilizing active thin-film semiconductor materials like organic/metal oxides or amorphous silicon. Flexible electronic devices offer advantages such as thinness, uniformity, and low manufacturing costs. Fabricating thin-film transistors (TFTs) on flexible substrates significantly reduces costs, allowing electronic products … Read more
Dr. An is here! We are pleased to introduce “Dr. An”, who is backed by a top-notch technical expert team from Ampere Computing, dedicated to sharing cutting-edge technical analyses, application insights, and trend observations in the cloud-native field with you. Let’s welcome “Dr. An” to shine on stage and bring the first exciting sharing! 【Follow】 … Read more