A View from the Top: A Virtual Prototyping Blog

Archive for the 'Power Management' Category

 

Linux and the Big Bad Wolf

Guest blog by Achim Nohl

Continue Reading...

Posted in ARM, Embedded Software, Energy and Performance, Power Management, Uncategorized |

 

A Closer Look at Software Development for ARM’s big.LITTLE Processing – Part I

In the last month, I had the opportunity to get some hands-on experience with hardware virtualization and hypervisors. My knowledge so far on this has been mainly limited to what I could read about it and what other people are saying about it. However, the PowerPoint slides I’ve seen leave a lot of white fog between the bullet items. This didn’t make me feel very comfortable talking about this topic myself; but, there was no escape. Hypervisors play an increasingly important role for system designers in context of supporting multiple guest operating systems on the same device, or taking advantage of ARM®’s new big.LITTLETM processing. The fog is not all gone, but let me provide you some insight on what I found out. As a disclaimer, I’m not going to (and I cannot) write an expert almanac about all the aspects of virtualization covering Xen, VMWare, etc. Instead, I’m going to focus on my personal experience that I believe will be relevant to you as well. This post is the starting point for a series on this topic in this blog.

Continue Reading...

Posted in ARM, Embedded Software, Energy and Performance, Hypervisor, Power Management, Virtual Prototypes, Virtualization |

 

What Have Models Got to Do with It? Pre-Silicon SoC Software Bring Up

Transaction-level models are the main building blocks of virtual prototypes, which are used for early software development. In my last blog post, I briefly introduced the different kinds of software tasks and the implications for models. Today, I want to talk about the modeling requirements for early SoC bring up. As I mentioned, understanding the software requirements correctly provides two clear benefits: 1) it makes modeling easier through a more focused application and 2) it increases the value for the software developer through more tailored modeling capabilities such as debug features.

Continue Reading...

Posted in Abstraction Levels, Embedded Software, Models, Power Management, Virtual Prototypes |