Invention Grant
- Patent Title: Interrupt virtualization
- Patent Title (中): 中断虚拟化
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Application No.: US12961186Application Date: 2010-12-06
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Publication No.: US08489789B2Publication Date: 2013-07-16
- Inventor: Benjamin C. Serebrin , Rodney W. Schmidt , David A. Kaplan , Mark D. Hummel
- Applicant: Benjamin C. Serebrin , Rodney W. Schmidt , David A. Kaplan , Mark D. Hummel
- Applicant Address: US CA Sunnyvale
- Assignee: Advanced Micro Devices, Inc.
- Current Assignee: Advanced Micro Devices, Inc.
- Current Assignee Address: US CA Sunnyvale
- Agency: Meyertons, Hood, Kivlin, Kowert & Goetzel, P.C.
- Agent Lawrence J. Merkel
- Main IPC: G06F13/24
- IPC: G06F13/24 ; G06F9/46

Abstract:
In an embodiment, a device interrupt manager may be configured to receive an interrupt from a device that is assigned to a guest. The device interrupt manager may be configured to transmit an operation targeted to a memory location in a system memory to record the interrupt for a virtual processor within the guest, wherein the interrupt is to be delivered to the targeted virtual processor. In an embodiment, a virtual machine manager may be configured to detect that an interrupt has been recorded by the device interrupt manager for a virtual processor that is not currently executing. The virtual machine manager may be configured to schedule the virtual processor for execution on a hardware processor, or may prioritize the virtual processor for scheduling, in response to the interrupt.
Public/Granted literature
- US20110197003A1 Interrupt Virtualization Public/Granted day:2011-08-11
Information query