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: shell $ sysctl kern.hv_support kern.hv_support: 1

Status

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