公开(公告)号：US20180088804A1

公开(公告)日：2018-03-29

申请号：US15279352

申请日：2016-09-28

Applicant: Amazon Technologies, Inc.

Inventor： Raviprasad Venkatesha Murthy Mummidi ,  MATTHEW SHAWN WILSON ,  ANTHONY NICHOLAS LIGUORI ,  NAFEA BSHARA ,  Saar Gross ,  Jaspal Kohli

IPC: G06F3/06 ,  G06F12/14 ,  G06F13/20 ,  G06F13/40

CPC classification number: G06F3/061 ,  G06F3/0623 ,  G06F3/0644 ,  G06F3/0655 ,  G06F3/0659 ,  G06F3/0664 ,  G06F3/0665 ,  G06F3/067 ,  G06F3/0688 ,  G06F12/1408 ,  G06F13/20 ,  G06F13/4004 ,  G06F2212/401 ,  G06F2212/402

Abstract: A peripheral device may implement storage virtualization for non-volatile storage devices connected to the peripheral device. A host system connected to the peripheral device may host one or multiple virtual machines. The peripheral device may implement different virtual interfaces for the virtual machines or the host system that present a storage partition at a non-volatile storage device to the virtual machine or host system for storage. Access requests from the virtual machines or host system are directed to the respective virtual interface at the peripheral device. The peripheral device may perform data encryption or decryption, or may perform throttling of access requests. The peripheral device may generate and send physical access requests to perform the access requests received via the virtual interfaces to the non-volatile storage devices. Completion of the access requests may be indicated to the virtual machines via the virtual interfaces.

公开(公告)号：US20160283421A1

公开(公告)日：2016-09-29

申请号：US15173445

申请日：2016-06-03

Applicant: Amazon Technologies, Inc.

Inventor： MATTHEW SHAWN WILSON ,  ANTHONY NICHOLAS LIGUORI ,  SHUVABRATA GANGULY

IPC: G06F13/28 ,  G06F9/455 ,  G06F9/48

CPC classification number: G06F13/28 ,  G06F9/45558 ,  G06F9/4881 ,  G06F2009/45562 ,  G06F2009/4557

Abstract: A DMA-capable device of a virtualization host stores a DMA write record, indicating a portion of host memory that is targeted by a DMA write operation, in a write buffer accessible from a virtualization management component of the host. The virtualization management component uses the DMA write record to identify a portion of memory to be copied to a target location to save a representation of a state of a particular virtual machine instantiated at the host.

Abstract translation: 虚拟化主机的具有DMA能力的设备将DMA写入记录存储在可由主机的虚拟化管理组件访问的写入缓冲器中，该DMA写入记录指示由DMA写入操作定向的主机存储器的一部分。 虚拟化管理组件使用DMA写入记录来标识要复制到目标位置的一部分存储器，以保存在主机上实例化的特定虚拟机的状态的表示。