×

VIRTUAL MACHINE SYSTEM AND A METHOD FOR SHARING A GRAPHICS CARD AMONGST VIRTUAL MACHINES

  • US 20080077917A1
  • Filed: 09/25/2007
  • Published: 03/27/2008
  • Est. Priority Date: 09/25/2006
  • Status: Active Grant
First Claim
Patent Images

1. A virtual machine system, comprising a Service Operating System (SOS), one or more Guest Operating Systems (GOSs), a Virtual Machine Monitor (VMM) and a graphics card, wherein,the VMM is provided with a resource-converting module that converts data exchanged between a graphics card drive module of a GOS in the foreground and the graphics card based on a resource-converting table, and also intercepts accesses to the real graphics card by a GOS in the background and then responds to its operations on the graphics card;

  • the VMM is further provided with a switching module, which alters a state of a VM based on a command to switch the VM, saves a graphics card state before the VM is switched to the background and restores the stored graphics card state to the graphics card when the VM is switched back to the foreground; and

    the GOSs each comprise a graphics card drive module corresponding to the real graphics card for accessing the real graphics card.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×