公开(公告)号：US20190124000A1

公开(公告)日：2019-04-25

申请号：US15789819

申请日：2017-10-20

Applicant: VMware, Inc.

Inventor： Michael WEI ,  Ke WANG

IPC: H04L12/721 ,  H04L29/06 ,  H04L12/26 ,  H04L12/801

Abstract: The disclosure provides an approach for transferring a packet from a source client to a destination application across a network. The approach generally includes writing an identifier to the packet by a switch, transferring the packet to a distributed log, logging a copy of the packet at the distributed log, and analyzing the packet for misplaced requests. The approach further includes, transmitting the packet from the distributed log to the destination, intercepting the packet by a shim layer and comparing the identifier to a counter maintained by the shim layer, and forwarding the packet to the destination application.

公开(公告)号：US20180321963A1

公开(公告)日：2018-11-08

申请号：US15588392

申请日：2017-05-05

Applicant: VMware, Inc.

Inventor： Nadav AMIT ,  Michael WEI ,  Cheng Chun TU

IPC: G06F9/455 ,  G06F12/1027

CPC classification number: G06F9/45558 ,  G06F12/1027 ,  G06F2009/45579 ,  G06F2212/657

Abstract: A hypervisor communicates with a guest operating system running in a virtual machine supported by the hypervisor using a hyper-callback whose functions are based on the particular guest operating system running the virtual machine and are triggered by one or more events in the guest operating system. The functions are modified to make sure they are safe to execute and to allow only limited access to the guest operating system. Additionally, the functions are converted to byte code corresponding to a simplified CPU and memory model and are safety checked by the hypervisor when registered with the hypervisor. The functions are executed by the hypervisor without any context switch between the hypervisor and guest operating system, and when executed, provide information about the particular guest operating system, allowing the hypervisor to improve operations such as page reclamation, virtual CPU scheduling, I/O operations, and tracing of the guest operating system.