Raspberry Pi and Docker for your home's entertainment and work.
Published at September 23, 2020 · Dawid Zębacki · 9 min read
Have you ever been trying to automate something at home or at work? Here it comes for the rescue Raspberry Pi working with Docker! With these tools, you can create a lot of projects with small effort....
Categories: app-dev firmware iot miscellaneous
Project status of the fwupd/LVFS support for Qubes OS
Published at July 14, 2020 · Norbert Kamiński · 5 min read
During the QubesOS minisummit, I have presented the initial status of the fwupd/LVFS support for the Qubes OS. Now it is time to share some more information about the progress....
Trying to fix ESXi 6.7.0 boot issue, part one
Published at March 4, 2020 · Krystian Hebel · 14 min read
First mentions that updated versions of VMware's ESXi 6.7.0 installer doesn't start on PC Engines platforms come from the beginning of 2019. Older versions of ESXi worked fine. 'Shutting down firmware services...' is the last line printed before hang or reboot....
Published at January 23, 2020 · Krystian Hebel · 14 min read
After long break, this is the third post in the hypervisor series. We will see how VMX helps with virtualization of restricted instructions and how Bareflank allows for implementation of handlers for them. At the end we will show how to write and add our own handler....
Categories: firmware
How L4 Genode hypervisor stands against proprietary RTOS solution
Published at January 10, 2020 · Krystian Hebel · 5 min read
A microkernel is a minimal computer operating system kernel which provides no operating system services at all, only the mechanisms needed to implement such services. A concept is tolerated inside the μ-kernel only if moving it outside the kernel would prevent the implementation of the system’s required functionality. In this article we will show our considerations on using L4 microkernels on VM....
Categories: os-dev
pfSense firewall boot process optimization under Xen hypervisor. Part 2
Published at December 13, 2019 · Piotr Kleinschmidt · 10 min read
In previous article we introduce our implementation of pfSense under Xen. Now, we want to show how you can improve boot process and reduce virtualized pfSense boot time to minimum....
pfSense firewall boot process optimization under Xen hypervisor. Part 1
Published at November 6, 2019 · Piotr Kleinschmidt · 5 min read
Running applications in Virtual Machines is not a trivial task. We made such pfSense firewall implementation. That article is an introduction about what we made and what actual goals we set to improve its performance....
Building and running Bareflank
Published at May 15, 2019 · Krystian Hebel · 13 min read
In this second post of a series, we will build and start our first hypervisor. It won't do much just yet, but it is good to get known with its build system....
Categories: firmware
5 terms every hypervisor developer should know
Published at April 30, 2019 · Krystian Hebel · 11 min read
This is the first post of a series about developing bare-metal hypervisors. It introduces to Intel's VMX technology, describes interactions between a virtual machine and a hypervisor as well as gives some insight on the control structures required. This post should give some theoretical knowledge base required for the next ones, in which we will implement a basic hypervisor....
Categories: firmware
virtualbox-dkms: fix alloc_netdev problems when compiling with 3.17.0-rcX headers
Published at September 20, 2014 · Piotr Król · 4 min read
Intro Because of my bug hunting approach of using latest kernel I experienced problem with compiling VirtualBox modules with 3.17.0-rc5 version on my Debian Jessie. Issue is well known and described for examples here. Problem manifest itself with: 1 2 3 4 5 6 7 8 9 10 11 12 ------------------------------ Deleting module version: 4.3.14 completely from the DKMS tree. ------------------------------ Done. Loading new virtualbox-4.3.14 DKMS files... Building only for 3....
Categories: app-dev
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