Invention Grant
- Patent Title: Power management of video display devices by virtual machines
- Patent Title (中): 虚拟机对视频显示设备进行电源管理
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Application No.: US13484041Application Date: 2012-05-30
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Publication No.: US09015711B2Publication Date: 2015-04-21
- Inventor: Michael Tsirkin , Dor Laor
- Applicant: Michael Tsirkin , Dor Laor
- Applicant Address: IL Raanana
- Assignee: Red Hat Israel, Ltd.
- Current Assignee: Red Hat Israel, Ltd.
- Current Assignee Address: IL Raanana
- Agency: Lowenstein Sandler LLP
- Main IPC: G06F9/455
- IPC: G06F9/455 ; G06F3/048 ; G06F1/26 ; G06F1/32
Abstract:
A system and method for display power management in a virtualized environment are disclosed. In accordance with one embodiment, a hypervisor receives a notification that a host operating system has received a command to dim a display, and forwards the notification to a guest operating system hosted by a virtual machine. The hypervisor receives from the guest operating system a first signal that indicates that the hypervisor is to notify the host operating system to refrain from executing the command. The hypervisor then transmits a second signal that notifies the host operating system to refrain from executing the command.
Public/Granted literature
- US20130326508A1 DISPLAY POWER MANAGEMENT FOR VIRTUAL MACHINES Public/Granted day:2013-12-05
Information query
