The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Mar. 05, 2013
Filed:
May. 30, 2012
Guest/hypervisor interrupt coalescing for storage adapter virtual function in guest passthrough mode
Hariharan Subramanian, Wakefield, MA (US);
Edward J. Goggin, Concord, MA (US);
Vibhor Patale, Bangalore, IN;
Rupesh Bajaj, Dewas Madhya Pradesh, IN;
Hariharan Subramanian, Wakefield, MA (US);
Edward J. Goggin, Concord, MA (US);
Vibhor Patale, Bangalore, IN;
Rupesh Bajaj, Dewas Madhya Pradesh, IN;
VMware, Inc., Palo Alto, CA (US);
Abstract
A method is described for coalescing input/output (IO) interrupts to a virtual machine (VM) running on a host computer. At a virtualization layer of the host computer that supports execution of the VM receives an IO interrupt in response to a completion of an IO request of the VM, wherein a transmission of the IO request by the VM to an IO device bypasses the virtualization layer. The virtualization layer then determines whether the VM has responded to a most recently delivered IO interrupt to the VM by the virtualization layer, and drops the IO interrupt if the VM has not responded to the most recently delivered IO interrupt, thereby failing to deliver the IO interrupt to the VM.