公开(公告)号：US20130290689A1

公开(公告)日：2013-10-31

申请号：US13926605

申请日：2013-06-25

Applicant: VMware, Inc.

Inventor： Vyacheslav V. MALYUGIN ,  Min XU ,  Boris WEISSMAN ,  Ganesh VENKITACHALAM ,  Alexander KLAIBER

IPC: G06F9/30

CPC classification number: G06F9/30145 ,  G06F9/3005 ,  G06F9/45533 ,  G06F11/301 ,  G06F11/3024 ,  G06F11/3414 ,  G06F11/3476

Abstract: The output of a non-deterministic instruction is handled during record and replay in a virtual machine. An output of a non-deterministic instruction is stored to a buffer during record mode and retrieved from a buffer during replay mode without exiting to the hypervisor. At least part of the contents of the buffer can be stored to a log when the buffer is full during record mode, and the buffer can be replenished from a log when the buffer is empty during replay mode.

Abstract translation: 非确定性指令的输出在虚拟机中的记录和重放期间被处理。 非确定性指令的输出在记录模式下被存储到缓冲器中，并且在重放模式期间从缓冲器中检索，而不退出管理程序。 当缓冲区在记录模式期间满时，缓冲区内容的至少一部分可以存储到日志中，并且当缓冲区在重放模式期间为空时，缓冲区可以从日志补充。

公开(公告)号：US20170083360A1

公开(公告)日：2017-03-23

申请号：US15369470

申请日：2016-12-05

Applicant: VMware, Inc.

Inventor： Keith M. ADAMS ,  Jeffrey W. SHELDON ,  Vyacheslav V. MALYUGIN

IPC: G06F9/455

CPC classification number: G06F9/45558 ,  G06F9/45533 ,  G06F2009/45566 ,  G06F2009/45583 ,  G06F2009/45591

Abstract: Autonomous selection between multiple virtualization techniques implemented in a virtualization layer of a virtualized computer system. The virtual machine monitor implements multiple virtualization support processors that each provide for the comprehensive handling of potential virtualization exceptions. A virtual machine monitor resident virtualization selection control is operable to select between use of first and second virtualization support processors dependent on identifying a predetermined pattern of temporally local privilege dependent instructions within a portion of an instruction stream as encountered in the execution of a guest operating system.

公开(公告)号：US20160371086A1

公开(公告)日：2016-12-22

申请号：US15256489

申请日：2016-09-02

Applicant: VMware, Inc.

Inventor： Vyacheslav V. MALYUGIN ,  Min XU ,  Boris WEISSMAN ,  Ganesh VENKITACHALAM ,  Alexander KLAIBER

IPC: G06F9/30 ,  G06F11/34 ,  G06F11/30

CPC classification number: G06F9/30145 ,  G06F9/3005 ,  G06F9/45533 ,  G06F11/301 ,  G06F11/3024 ,  G06F11/3414 ,  G06F11/3476

Abstract: The output of a non-deterministic instruction is handled during record and replay in a virtual machine. An output of a non-deterministic instruction is stored to a buffer during record mode and retrieved from a buffer during replay mode without exiting to the hypervisor. At least part of the contents of the buffer can be stored to a log when the buffer is full during record mode, and the buffer can be replenished from a log when the buffer is empty during replay mode.