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Intel architecture

All things about Intel architecture and processor internals and working. Topics will include from paging, Segmentation to Virtualization.

7 Articles

Intel architecture

Firmware security 3: Digging into System management mode (SMM)

Firmware

Firmware security 3: Digging into System management mode (SMM)

In the third part of the series we are going to discuss System management mode (SMM) and it's security. Moreover, We will try to interact with the SMM from our linux system.

By Shubham Dubey 20 Mar 2021

Impact of x64 calling convention in format string exploitation

Exploit Development

Impact of x64 calling convention in format string exploitation

In this post I will try to give you a brief on how format string exploitation can differ in 64 bit architecture due to different calling convention in 64 bit.

By Shubham Dubey 20 Oct 2020

Segmentation in Intel x64(IA-32e) architecture - explained using Linux

Intel architecture

Segmentation in Intel x64(IA-32e) architecture - explained using Linux

In this article we will go through Segmentation in basic and cover it for x64 (IA-32e) processors by extracting the details inside a Linux system.

By Shubham Dubey 21 Feb 2020

Developing hypervisor from scratch: Part 4 - Setting up HOST and GUEST State

Developing hypervisor from scratch: Part 4 - Setting up HOST and GUEST State

In this article series you are going to learn how to develop your own hypervisor for virtualization in linux ecosystem. In this part we will do the setup of HOST and GUEST state area and at last the vmlaunch.

By Shubham Dubey 12 Nov 2019

Developing hypervisor from scratch: Part 3 - Setting up VMCS

Developing hypervisor from scratch: Part 3 - Setting up VMCS

In this article series you are going to learn how to develop your own hypervisor for virtualization in linux ecosystem. In this part we will do the setup of VMCS structure.

By Shubham Dubey 30 Sep 2019

Developing hypervisor from scratch: Part 2 - VMXON Operation

Developing hypervisor from scratch: Part 2 - VMXON Operation

In this article series you are going to learn how to develop your own hypervisor for virtualization in linux ecosystem. In this part we will execute VMXON operation.

By Shubham Dubey 9 Aug 2019

Developing hypervisor from scratch: Part 1 - Intro and Setup

Developing hypervisor from scratch: Part 1 - Intro and Setup

In this article series you are going to learn how to develop your own hypervisor for virtualization in linux ecosystem. Also this series will help to learn low level virtualization.

By Shubham Dubey 8 Aug 2019