VirtualMachine

virtualmachine allows to run your assembly code on a VMM instantly, using Ruby.

Installation

Add this line to your application's Gemfile:

gem 'virtualmachine'

And then execute:

$ bundle

Or install it yourself as:

$ gem install virtualmachine

Usage

Here's a sample code. This will create a VM named 'vm0' with 128MB memory, executes an assembly code witch passed to load_asm().

require 'virtualmachine'
vm0 = VirtualMachine.new('vm0', 128)
vm0.load_asm(<<EOS)
	mov dx, 3F8h
	mov al, 2Ah
loop:
	out dx, al
	jmp loop
EOS
vm0.run

Limitations/TODO

• Currently, virtualmachine only supports FreeBSD-10 or later, because it built on BHyVe. Need to support Linux KVM.
• Page table, GDT, control registers are pre-initialized, hardcoded. Need to find better way to do it.
• No way to read/write guest registers and guest memory area. Need more APIs.
• Due to it's hardcoded, you can't choice 16bit/32bit mode. It always runs in 64bit mode.
• Because BHyVe doesn't have a BIOS, you have no way to call it.

Contributing

1. Fork it
2. Create your feature branch (git checkout -b my-new-feature)
3. Commit your changes (git commit -am 'Add some feature')
4. Push to the branch (git push origin my-new-feature)
5. Create new Pull Request