xhypervisor

xhypervisor is a Rust library that taps into functionality that enables hardware-accelerated execution of virtual machines on OS X. It is a fork of hypervisor-rs and modified for the development of ehyve

It binds to the Hypervisor framework on OS X, and exposes a safe Rust interface through the hypervisor module, and an unsafe foreign function interface through the xhypervisor::ffi module.

A xhypervisor derived from the 16 bits VM is used as test example, which was original published in blog post http://www.pagetable.com/?p=764.

Prerequisites

To use this library, you need

• OS X Yosemite (10.10), or newer

• an Intel processor with the VT-x feature set that includes Extended Page Tables (EPT) and the Unrestricted Mode. To verify this, run and expect the following in your Terminal:

  $ sysctl kern.hv_support
  kern.hv_support: 1
  

Status

• Accessing x86 registers
• Accessing model-specific registers (MSRs)
• Mapping guest physical memory segments into guest physical address space
• Virtual CPUs
  • Executing and interrupting
  • Force flushing cached state
  • Invalidating translation lookaside buffer (TLB)
  • Accessing floating point (FP) and SIMD state
  • Obtaining cumulative execution time
  • Synchronizing guest timestamp-counters (TSC)
• Accessing fields of Virtual Machine Control Structures (VMCS)