PLEX86  x86- Virtual Machine (VM) Program
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Welcome to the new plex86 project.   Plex86 has been revitalized/rehashed to offer a very light (VM) Virtual Machine for running Linux / x86.   Rather than implement a heavyweight VM which can run all guest (OSes) Operating Systems, the new approach is to run only Linux VMs, making the new plex86 architecture on the order of 100x more simplistic.

As Linux - Linux/x86 does not make use of "corner cases" which require complex software techniques (e.g. dynamic translat I/O and other execut I/O monitoring methods), plex86 now implements no such techniques.   Guest Linux code is executed in a safe VM environment managed by a Virtual Machine - VM monitor.   Guest kernel code is executed at a less priviliged level, causing privileged operat I/Ons to generate except I/Ons which are managed by the VM monitor.

Virtualized I/O model:  because the Linux kernel can easily be configured before compiling to remove support for most all I/O hardware, the model for handling I/O in the guest Linux VM is greatly simplified and improved in plex86.   Excepting for some very lightweight emulatI/On of a few core components (e.g. interupt controller, system timer), plex86 does not model(emulate) I/O hardware.   All I/O interactI/Ons occur through a Hardware AbstractI/On Layer (HAL) which passes packets of informatI/On between the guest Linux and the host OS.   This not only removes the complexity/overhead of modeling I/O hardware, but allows for more flexibility in dealing with guest-host interactI/Ons and creates a truly virtualized Linux resource which is unrooted from the actual hardware.   Guest Linux drivers interact with the HAL to manage I/O related interactI/Ons (networking/disk/etc) with the host OS.

 

You can learn more about the Plex 86 project in the following Linux Newsgroups from Usenet.
  • comp.os.linux.misc
    Usenet Newsgroup dedicated to Linux
    Startx problem Noatime Text Editor for Linux Microsoft Hatred FAQ Readline 5.1
  • comp.os.linux.advocacy
    Discussion about the benefits of Linux versus other systems.
    Linux on a PC OpenOffice Firefox rapskat Konqueror FC4
  • alt.sys.pc-clone.dell
    Usenet news group all about Dell Dell Laptops Dell support Dell Rebate Dell 2100 etc...
  • alt.computer
    Talk and discussion about computers including computer hardware and computer software, notebook computers, desktop computers, computer repair, computer games, sales, stores, training plus much more. See what others are saying about Home Network. PC to TV. Computer repair, computer software,
  • Mac.OSX
    Mac or PC. PC or Mac which is better? The debate will never be settled. Read and watch everyone duke it out in this group with topics such as... Intel Macs. Apple's Macbook, Photoshop, OSX debate over the Ipod... plus much more about the mac.
  • Computer Consultants
    Consultants discussing what else? Computers! -Other hot topics include: India Outsourcing Hightech jobs Google Earth Engineering AMD DualCore Chips
  • Computer Folklore
    Al Gore invented the Internet - Computers spontaneous combusting - These are just two of the topics you will find in Stories of Computer Folklore. Other topics include: Old Computers and Moisture Software for IBM IBM Acronyms Winscape IBM 610 Virtual Memory






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