Category: Software Debug and Trace – Intel

PCI Express LTSSM stress using BMC-based Embedded JTAG/ITP

Alan Sguigna

July 19, 2020
4:27 pm

This past week, I did a webinar in collaboration with the UEFI Forum on JTAG-based UEFI Debug and Trace. This reviewed some of the often-used tools for low-level triage of difficult-to-diagnose, intermittent bugs. Near the end, I demonstrated the usage of technology running directly down on a BMC to perform low-level functions not achievable with firmware or OS-based applications.

Webinar on JTAG-based UEFI Debug & Trace

Alan Sguigna

June 24, 2020
2:23 pm

ASSET will be presenting JTAG-based UEFI Debug & Trace at the UEFI Forum’s 2020 Virtual Plugfest, on July 14th.

The UP Squared Chronicles Episode 2: Building the UEFI Image

Alan Sguigna

June 7, 2020
5:55 pm

In Episode 1 of the UP Squared Chronicles, I used my DediProg SF100 to flash a debug image equipped with source and symbols onto the UP Squared board. This week, I describe the build process.

More Skylake Server CScripts Explorations

Alan Sguigna

May 31, 2020
1:18 pm

In Running Intel CScripts on Skylake servers, I gave a brief introduction to the Intel Customer Scripts (CScripts), and showed how to run them with SourcePoint. Today, I do a deeper dive.

Open Source Firmware explorations using DCI on the AAEON UP Squared board

Alan Sguigna

May 16, 2020
4:23 pm

As you may have seen from my last blog, my old favorite open-source platform, the MinnowBoard, has been declared End-of-Life. So how am I to satisfy my innate need to explore the low-level interfaces between silicon, hardware and firmware? I may have found a new open source firmware board that meets my needs.

The MinnowBoard Chronicles Episode 46: Using the DediProg SF100

Alan Sguigna

May 3, 2020
3:04 pm

I’ve been working from home for quite some time now, and don’t have access to all the equipment I normally would have at the office. And I’ve wanted to flash the MinnowBoard (and some other boards). So, rather than wait for the coronavirus shelter-in-place to lift, I went out and bought a DediProg SF100 of my own. Here’s my out-of-the-box experience.

Running Intel CScripts on Skylake servers

Alan Sguigna

April 12, 2020
3:58 pm

As everyone who works with server designs knows, Intel publishes a group of JTAG-based scripts called the Intel Customer Scripts (ICS, or CScripts for short). The CScripts are derived from internal applications that Intel uses for silicon validation, and they are enormously useful for board bring-up and debug. This week, I took a look at them, and ran some with SourcePoint.

Intel Processor Trace and AET

Alan Sguigna

April 5, 2020
5:16 pm

In my last few blogs, I’ve looked at the use of Intel Trace features for capturing valuable debug information. In particular, Architectural Event Trace (AET) and Management Engine (ME) message trace are very powerful capabilities. This week, we put these trace events in a meaningful code context by correlating them with Intel Processor Trace (IPT).

Intel Management Engine (ME) Event Trace

Alan Sguigna

March 29, 2020
4:49 pm

Last week, I used Architectural Event Trace (AET) to capture all events that invoked Model Specific Register (MSR) reads and writes. This week, I use the Trace Hub to trace Intel Management Engine (ME, also known as Converged Security and Management Engine (CSME)) events.

Advanced Capabilities of Architectural Event Trace

Alan Sguigna

March 22, 2020
5:23 pm

In the first and second episodes of this series, I did a basic introduction of how to set up AET and to trace I/O reads and writes. This week, I look at tracing all Model Specific Register (MSR) reads and writes.

Category: Software Debug and Trace – Intel

PCI Express LTSSM stress using BMC-based Embedded JTAG/ITP

Webinar on JTAG-based UEFI Debug & Trace

The UP Squared Chronicles Episode 2: Building the UEFI Image

More Skylake Server CScripts Explorations

Open Source Firmware explorations using DCI on the AAEON UP Squared board

The MinnowBoard Chronicles Episode 46: Using the DediProg SF100

Running Intel CScripts on Skylake servers

Intel Processor Trace and AET

Intel Management Engine (ME) Event Trace

Advanced Capabilities of Architectural Event Trace

Archives

Categories