bare metal x86_64 OS

Specifications

disk is a raw image with no MBR or partition
user applications are stored in a tar file. The tar file is used as a readonly disk
    using "flatfs" as the "tar" filesystem
paging uses identity mapping of the 2first mb with 2mb pages
  and virtual memory addresses with bit 46 set are mirror addresses.
        meaning that gig #65536 maps to gig #0.
        
supports ring3 user threads and ring0 kernel threads
supports multiprocessors
Supports AVX
supports APIC, and not PIC
supports PCID and does TLB shootdowns
supports sending IPIs and registering custom handlers
supports RTL8139 netcard on PCI bus
supports virtio block device and virtio net device.
networking works but not fully tested
    - can receive TCP connection and establish one
    - send/rcv
    - no failure testing
basic hypervisor
    CPU virtualization with VMX
    no BIOS
    no virtual devices
    no emulation of A20M
    

Screenshots

Booting

Hex editor

Simple shell

tetris

web server