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Hypervisor From Scratch – Part 4: Address Translation Using Extended Page Table (EPT)

Sina Karvandi 2

Hello guys! Welcome to the fourth part of the “Hypervisor From Scratch”. This part is primarily about translating guest address through Extended Page Table (EPT) and its implementation. We also see how shadow tables work and other cool stuff. First of all, make sure to read the earlier parts before reading this topic as these parts are really dependent on each other also you should have a basic understanding of paging mechanism and how page tables work. A good article is…

Hypervisor From Scratch – Part 3: Setting up Our First Virtual Machine

Sina Karvandi 7

Introduction This is the third part of the tutorial “Hypervisor From Scratch“. You may have noticed that the previous parts have steadily been getting more complicated. This part should teach you how to get started with creating your own VMM, we go to demonstrate how to interact with the VMM from Windows User-mode (IOCTL Dispatcher), then we solve the problems with the affinity and running code in a special core. Finally, we get familiar with initializing VMXON Regions and VMCS…

Using Intel’s Streaming SIMD Extensions 3 (MONITOR\MWAIT) As A Kernel Debugging Trick

Sina Karvandi 0

  Introduction MONITOR and MWAIT are using when the CPU needs to be stopped executing the instruction and enter an implementation-dependent optimized state until some special event happens. MONITOR sets up an address range used to monitor write-back stores while MWAIT enables a logical processor to enter into an optimized state while waiting for a write-back store to the address range set up by MONITOR instruction.   MWAIT and MONITOR may be executed only at privilege level 0, if you use these…

A Tour of Mount in Linux

Shahriar 1

I had windows 10 installed on my laptop because of serious incompatibility of ROG laptops with Linux and my desire to play some games after years of living in bash! This continued for a year and I really like windows 10 cool features like WSL and Hyper-V (with Docker!), however being in love with rolling-release distros and being fed up with windows in the past year. And the fact that I was yearning for terminal, I installed Solus OS earlier…