公开(公告)号：US09086904B2

公开(公告)日：2015-07-21

申请号：US13941707

申请日：2013-07-15

Applicant: VMware, Inc.

Inventor： Edward Joseph Goggin ,  Hariharan Subramanian ,  Sanjana Aswani ,  Adam M. Belay ,  Anurekh Saxena

IPC: G06F15/167 ,  G06F21/00 ,  G06F9/455 ,  G06F3/06 ,  H04L12/911 ,  G06F9/48

CPC classification number: G06F9/45533 ,  G06F3/0647 ,  G06F9/45558 ,  G06F9/4856 ,  G06F2009/4557 ,  G06F2009/45579 ,  G06F2009/45583 ,  H04L47/783

Abstract: A method is provided to migrate a virtual machine from a source computing machine to a destination computing machine comprising: suspending transmission of requests from a request queue disposed in source computing machine memory associated with the VM from the request queue to a VF; while suspending the transmission of requests, determining when no more outstanding responses to prior requests remain to be received; in response to a determination that no more outstanding responses to prior requests remain to be received, transferring state information that is indicative of locations of requests inserted to the request queue from the VF to a PF and from the PF to a memory region associated with a virtualization intermediary of the source computing machine. After transferring the state information to source computing machine memory associated with a virtualization intermediary, resuming transmission of requests from locations of the request queue indicated by the state information to the PF; and transmitting the requests from the PF to the physical storage.

Abstract translation: 提供了一种将虚拟机从源计算机迁移到目的地计算机的方法，包括：将设置在与VM相关联的源计算机存储器中的请求队列的请求从请求队列暂停传输到VF; 同时暂停发送请求，确定何时不再有对先前请求的未决答复仍然被接收; 响应于确定没有对先前请求的更多未决的响应仍然被接收，将指示插入请求队列的请求的位置的状态信息从VF传送到PF，并将PF传送到与 虚拟化中介的源计算机。 在将状态信息传送到与虚拟化中介相关联的源计算机存储器之后，恢复从状态信息所指示的请求队列的位置向PF发送请求; 并将来自PF的请求发送到物理存储。