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1. 发明申请

US20140075141A1 CONCURRENT VIRTUAL MACHINE SNAPSHOTS AND RESTORE 有权
标题翻译：同时虚拟机启动和恢复
公开(公告)号：US20140075141A1
公开(公告)日：2014-03-13
申请号：US14079535
申请日：2013-11-13
申请人： MICROSOFT CORPORATION
发明人： Andrew Ernest Nicholas , Aaron S. Giles , Eric P. Traut , Idan Avraham , Xiongjian Fu , Osama M. Salem
IPC分类号： G06F11/14
CPC分类号： G06F11/1469 , G06F9/4418 , G06F9/45558 , G06F11/1438 , G06F11/1482 , G06F11/1484 , G06F2009/45575 , G06F2201/815 , G06F2201/84
摘要： Various mechanisms are disclosed herein for the saving and restoring of virtual machine environment state. For example, virtual machine state can be either be saved or (multiple) snapshots can be taken of the virtual machine state. In the latter case, virtual processors can be allowed to run while the memory of the virtual machine state is being saved. In either case, virtual devices associated with the virtual machine environment can be quiesced such that these devices can prepare themselves to be saved. Once such virtual devices and memory are saved, they can also be restored. For example, restoration of memory can occur while virtual processors are running at the same time. And, moreover, restoration can occur in batches of pages, thus optimizing the response time for restoring saved data.
摘要翻译：本文公开了用于保存和恢复虚拟机环境状态的各种机制。例如，可以保存虚拟机状态，或者可以采用虚拟机状态的（多个）快照。在后一种情况下，可以允许虚拟处理器在虚拟机状态的存储器被保存时运行。在任一种情况下，与虚拟机环境相关联的虚拟设备都可以停顿，以便这些设备可以自己准备保存。一旦这样的虚拟设备和内存被保存，它们也可以恢复。例如，当虚拟处理器同时运行时，可能会发生内存的恢复。而且，还可以批量进行页面恢复，从而优化恢复保存的数据的响应时间。

2. 发明授权

US08984244B2 Concurrent virtual machine snapshots and restore 有权
标题翻译：并发虚拟机快照和还原
公开(公告)号：US08984244B2
公开(公告)日：2015-03-17
申请号：US14079535
申请日：2013-11-13
申请人： Microsoft Corporation
发明人： Andrew Ernest Nicholas , Aaron S. Giles , Eric P. Traut , Idan Avraham , Xiongjian Fu , Osama M. Salem
IPC分类号： G06F12/00 , G06F11/14 , G06F9/44 , G06F9/455
CPC分类号： G06F11/1469 , G06F9/4418 , G06F9/45558 , G06F11/1438 , G06F11/1482 , G06F11/1484 , G06F2009/45575 , G06F2201/815 , G06F2201/84
摘要： Various mechanisms are disclosed herein for the saving and restoring of virtual machine environment state. For example, virtual machine state can be either be saved or (multiple) snapshots can be taken of the virtual machine state. In the latter case, virtual processors can be allowed to run while the memory of the virtual machine state is being saved. In either case, virtual devices associated with the virtual machine environment can be quiesced such that these devices can prepare themselves to be saved. Once such virtual devices and memory are saved, they can also be restored. For example, restoration of memory can occur while virtual processors are running at the same time. And, moreover, restoration can occur in batches of pages, thus optimizing the response time for restoring saved data.
摘要翻译：本文公开了用于保存和恢复虚拟机环境状态的各种机制。例如，可以保存虚拟机状态，或者可以采用虚拟机状态的（多个）快照。在后一种情况下，可以允许虚拟处理器在虚拟机状态的存储器被保存时运行。在任一种情况下，与虚拟机环境相关联的虚拟设备都可以停顿，以便这些设备可以自己准备保存。一旦这样的虚拟设备和内存被保存，它们也可以恢复。例如，当虚拟处理器同时运行时，可能会发生内存的恢复。而且，还可以批量进行页面恢复，从而优化恢复保存的数据的响应时间。

3. 发明申请

US20140007101A1 CHANGING FREQUENCY OF A VIRTUAL PROGRAMMABLE INTERRUPT TIMER IN VIRTUAL MACHINES TO CONTROL VIRTUAL TIME 有权
标题翻译：虚拟机中虚拟可编程中断定时器的频率变化来控制虚拟时间
公开(公告)号：US20140007101A1
公开(公告)日：2014-01-02
申请号：US14020209
申请日：2013-09-06
申请人： Microsoft Corporation
发明人： Andrew Ernest Nicholas , Rene Antonio Vega
IPC分类号： G06F9/455
CPC分类号： G06F9/45533 , G06F9/4825
摘要： A catch-up mode that runs a virtual programmable interrupt timer faster than a nominal rate to prevent time loss in a virtual machine can be implemented. If time loss is determined, a catch-up mode can be initiated to cause increased firings, beyond a nominal rate, of the programmable interrupt timer to adjust the clock of the virtual machine to the clock of the host system. The virtual programmable interrupt timer can also be readjusted to a predetermined nominal rate when the time loss in the guest operating system is determined approximately within a predetermined tolerance range. The catch-up mode can be monitored to avoid “interrupt storms” on the virtual machine. The virtual programmable interrupt timer can be altered by the guest operating system to accommodate different operating systems.
摘要翻译：可以实现一种追赶模式，其运行虚拟可编程中断定时器比名义速率更快以防止虚拟机中的时间损失。如果确定时间损失，则可启动追赶模式，以引起可编程中断定时器超出标称速率的增加的启动，以将虚拟机的时钟调整到主机系统的时钟。当客人操作系统中的时间损失大致在预定的公差范围内被确定时，虚拟可编程中断定时器也可以重新调整到预定的标称速率。可以监视追赶模式，以避免虚拟机中的“中断风暴”。虚拟可编程中断定时器可以由客户机操作系统改变，以适应不同的操作系统。

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