Microsoft открыло API Viridian.

Open Specification Promise.
Теперь сторонние приложения смогут получать доступ к

• Partition Management
• Physical Hardware Management
• Resource Management
• Guest Physical Address Spaces
• Intercepts
• Virtual Processor Management
• Virtual Processor Execution
• Virtual MMU and Caching
• Virtual Interrupt Control
• Inter-Partition Communication
• Timers
• Message Formats
• Partition Save and Restore
• Scheduler
• Event Logging
• Guest Debugging Support
• Statistics

Отсюда.