DIRECT SHARING OF SMART DEVICES THROUGH VIRTUALIZATION

• US 20120167082A1
• Filed: 12/23/2010
• Published: 06/28/2012
• Est. Priority Date: 12/23/2010
• Status: Abandoned Application

• Current Assignee: Intel Corporation
• Original Assignee: Intel Corporation
• Inventors: Kumar, Sanjay, Cowperthwaite, David J., Lantz, Philip R., Sankaran, Rajesh M.
• Application Number:
  US12/977,490
• Publication Number:
  US 20120167082A1
• Time in Patent Office: Days
• US Class Current: 718/1
• CPC Class Codes: G06F 2009/45579 I/O management, e.g. providing access to device drivers or storage
• CPC Class Codes: G06F 9/4555 Para-virtualisation, i.e. guest operating system has to be modified
• CPC Class Codes: G06F 9/45558 Hypervisor-specific management and integration aspects

Abstract

In some embodiments devices are enabled to run virtual machine workloads directly. Isolation and scheduling are provided between workloads from different virtual machines. Other embodiments are described and claimed.

Claims

1. A method comprising:

enabling devices to run virtual machine workloads directly; and

providing isolation and scheduling between workloads from different virtual machines.

2. The method of claim 1, further comprising modifying device software and/or firmware to enable isolation and scheduling of workloads from different virtual machines.

3. The method of claim 1, further comprising providing high performance Input/Output virtualization.

4. The method of claim 1, further comprising enabling device sharing by a plurality of virtual machines.

5. The method of claim 1, further comprising dynamically allocating device resources to virtual machines.

6. The method of claim 1, further comprising dynamically allocating device resources to virtual machines without requiring significant hardware changes to a device being virtualized.

7. The method of claim 1, further comprising directly accessing a path to a device being virtualized for a frequently accessed device resource.

8. The method of claim 1, further comprising ensuring isolation and scheduling for a non-frequently accessed device resource.

9. The method of claim 1, further comprising trapping and emulating.

10. The method of claim 1, further comprising accessing device resources using a virtual machine device model for a non-frequently accessed device resource.

11. An apparatus comprising:

a virtual machine monitor adapted to enable devices to run virtual machine workloads directly, and adapted to provide isolation and scheduling between workloads from different virtual machines.

12. The apparatus of claim 11, the virtual machine monitor adapted to modify device software and/or firmware to enable isolation and scheduling of workloads from different virtual machines.

13. The apparatus of claim 11, the virtual machine monitor adapted to provide high performance Input/Output virtualization.

14. The apparatus of claim 11, the virtual machine monitor adapted to enable device sharing by a plurality of virtual machines.

15. The apparatus of claim 11, the virtual machine monitor adapted to dynamically allocate device resources to virtual machines.

16. The apparatus of claim 11, the virtual machine monitor adapted to dynamically allocate device resources to virtual machines without requiring significant hardware changes to a device being virtualized.

17. The apparatus of claim 11, the virtual machine monitor adapted to directly access a path to a device being virtualized for a frequently accessed device resource.

18. The apparatus of claim 11, the virtual machine monitor adapted to ensure isolation and scheduling for a non-frequently accessed device resource.

19. The apparatus of claim 11, the virtual machine monitor adapted to trap and emulate.

20. The apparatus of claim 11, the virtual machine monitor adapted to access device resources using a virtual machine device model for a non-frequently accessed device resource.