Invention Grant
- Patent Title: Pessimistic interrupt affinity for devices
- Patent Title (中): 对设备的悲观中断亲和力
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Application No.: US13221590Application Date: 2011-08-30
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Publication No.: US08880764B2Publication Date: 2014-11-04
- Inventor: Michael S. Tsirkin , Avi Kivity
- Applicant: Michael S. Tsirkin , Avi Kivity
- 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: G06F13/24
- IPC: G06F13/24

Abstract:
A computing apparatus identifies that a first physical processor of a host has forwarded information regarding a device interrupt for a device to a second physical processor executing at least one of a virtual processor that controls the device or an application thread that controls the device. After identifying that the first physical processor has forwarded the information regarding the device interrupt to the second physical processor and in response to determining that one or more update criteria have been satisfied, the computing apparatus updates at least one of the device or an interrupt controller to cause at least one of the device or the interrupt controller to send future device interrupts for the device to the second physical processor.
Public/Granted literature
- US20130054861A1 PESSIMISTIC INTERRUPT AFFINITY FOR DEVICES Public/Granted day:2013-02-28
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