Invention Grant
- Patent Title: Selecting between pass-through and emulation in a virtual machine environment
- Patent Title (中): 在虚拟机环境中选择传递和仿真
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Application No.: US12264798Application Date: 2008-11-04
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Publication No.: US07743389B2Publication Date: 2010-06-22
- Inventor: Mallik Mahalingam , Boon Seong Ang , Pankaj Thakkar
- Applicant: Mallik Mahalingam , Boon Seong Ang , Pankaj Thakkar
- Applicant Address: US CA Palo Alto
- Assignee: VMware, Inc.
- Current Assignee: VMware, Inc.
- Current Assignee Address: US CA Palo Alto
- Main IPC: G06F3/00
- IPC: G06F3/00 ; G06F9/44 ; G06F9/46 ; G06F13/00

Abstract:
According to one or more embodiments a logical virtual device may provide the desired functionality using either a virtual device or a physical device connected to a virtual machine. When the physical device is available, a guest operating system executing on a virtual machine (VM) can be instructed to utilize the physical device. When the VM is migrated between hosts of different underlying hardware, or when the physical device becomes unavailable, e.g., through dynamic reconfiguration or reallocation of physical resources, the guest operating system can be instructed to utilize the virtual device instead.
Public/Granted literature
- US20090119684A1 Selecting Between Pass-Through and Emulation in a Virtual Machine Environment Public/Granted day:2009-05-07
Information query