STATUS.md

Current project status

Here is the list of features currently working as well as some of the next steps in the project roadmap.

Core kernel features

• Bootloader-related
  • Multboot structure parsing (boot cmdline, memory maps, framebuffer and kernel image details)
• CPU
  • CPUID wrapper
  • Port R/W abstraction
• Memory management
  • Physical frame allocators (bootmem-based, bitmap allocator)
  • VMM system (page table management, virtual address space reservations, page RW/NX bits, page walk/translation helpers and copy-on-write pages)
• Exception handling
  • Page fault handling (also used to implement CoW)
  • GPF handling
• Hardware detection/abstraction layer
  • Multiboot-based HW detection
  • ACPI-based HW detection

Supported Go language features:

• Go allocator
• Maps
• Interfaces
• Package init() functions
• Defer
• Panic
• GC
• Go-routines

Device drivers

• Console
  • Text-mode console
  • Vesa-fb (15, 16, 24 and 32 bpp) console with support for bitmap fonts and (optional) logo
• TTY
  • Simple VT
• ACPI 6.2 support (in progress)
  • ACPI table detection and parsing
  • AML parser
  • AML interpreter/VM
• Interrupt handling chip drivers
  • APIC
• Timer and time-keeping drivers
  • APM timer
  • APIC timer
  • HPET
  • RTC
• Timekeeping system
  • Monotonic clock (configurable timer implementation)

Feature roadmap

Here is a list of features planned for the future:

• RAMDISK support (tar/bz2)
• Loadable modules (using a mechanism analogous to Go plugins)
• Tasks and scheduling
• Network device drivers
• Hypervisor support
• POSIX-compliant VFS