Computer virtual machine system and equipment accessing method
A technology of virtual machine and computer, applied in the field of computer
Active Publication Date: 2012-07-04
LENOVO (BEIJING) LTD
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As shown in Figure 1, if the Two guest operating systems run on the virtualization framework: the first guest operating system and the second guest operating system, and there are sockets for connecting USB devices on the hardware platform; the first guest operating system and the second guest operating system can respectively pass the virtual The machine manager implements the access to the USB device, but if the user uses the USB device in the first guest operating system, when switching to the second guest operating system, the USB device needs to be continued to be used, and the user must re-plug the USB device at this time. Plugging in the USB device and reconfiguring the USB device brings inconvenience to the user, especially when using a desktop computer, this inconvenience is even more prominent, and it destroys the seamless switching experience of the user
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[0032] In order to make the technical problems, technical solutions and advantages to be solved by the embodiments of the present invention clearer, the following will describe in detail with reference to the drawings and specific embodiments.
[0033] The embodiment of the present invention aims at the problem that in the existing computer virtualization architecture, when multiple guest operating systems use plug-and-play devices such as USB, they must be plugged and plugged again, which causes inconvenience. Plug and play devices for computers.
[0034] Such as figure 2 As shown, the computer includes: a hardware platform; a virtual machine manager installed on the hardware platform; and at least two guest operating systems installed on the virtual machine manager;
[0035] Wherein, the virtual machine manager includes a redirection channel, which is used to transmit the access request of the device under the first guest operating system among the at least two guest opera...
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The invention provides a virtual machine system of a computer and a device access method thereof. The computer comprises a virtual machine manager installed, at least two client operation systems installed on the virtual machine manager. The virtual machine manager comprises a redirection channel used for transmitting an equipment access request under the first client operation system of the at least two client operation systems currently running at the foreground to the second client operation system; the at least two client operation systems comprises a device management module used for receiving the access request and obtaining the status information of the device through the accessed request; and after the second client operation system is switched to the foreground, the access to the device by the redirection channel and the first client operation system is determined according to the status information. With the scheme, the devices such as a USB and the like can be avoided from being re-plugged, thus facilitating the users.
Description
technical field [0001] The invention relates to the field of computers, in particular to a computer virtual machine system and a device access method. Background technique [0002] On the existing computer virtualization architecture, multiple guest operating systems (Guest OS) are usually run on the virtual machine manager (VMM). If these guest operating systems all need to use plug-and-play devices, such as USB devices, USB devices are required. Switch between different guest operating systems. like figure 1 As shown, if two guest operating systems are run on the virtualization framework of a computer: the first guest operating system and the second guest operating system, there are sockets for connecting USB devices on the hardware platform; the first guest operating system and the second guest operating system The second guest operating system can realize the access to the USB device through the virtual machine manager respectively, but if the user uses the USB devic...
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IPC IPC(8): G06F9/48G06F9/455
Inventor 李志刚王凯席振新
Owner LENOVO (BEIJING) LTD