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：US20180004954A1

公开(公告)日：2018-01-04

申请号：US15199479

申请日：2016-06-30

Applicant: Amazon Technologies, Inc.

Inventor： ANTHONY NICHOLAS LIGUORI ,  BARAK WASSERSTROM

IPC: G06F21/57 ,  H04L9/32 ,  H04L9/30 ,  G06F9/455 ,  G06F9/44 ,  H04L9/06 ,  H04L9/00 ,  H04L9/08 ,  H04L29/06 ,  H04L9/14

CPC classification number: G06F21/575 ,  G06F9/4405 ,  G06F9/4416 ,  G06F9/455 ,  G06F9/45558 ,  G06F2009/45575 ,  G06F2221/034 ,  H04L9/006 ,  H04L9/0643 ,  H04L9/0861 ,  H04L9/14 ,  H04L9/302 ,  H04L9/3239 ,  H04L9/3249 ,  H04L9/3263 ,  H04L63/0823

Abstract: A multi-phase boot operation of a virtualization manager at a virtualization host is initiated at an offload card. In a first phase of the boot, a security key stored in a tamper-resistant location of the offload card is used. In a second phase, firmware programs are measured using a security module, and a first version of a virtualization coordinator is instantiated at the offload card. The first version of the virtualization coordinator obtains a different version of the virtualization coordinator and launches the different version at the offload card. Other components of the virtualization manager (such as various hypervisor components that do not run at the offload card) are launched by the different version of the virtualization controller.

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。

公开(公告)号：US20180004561A1

公开(公告)日：2018-01-04

申请号：US15199489

申请日：2016-06-30

Applicant: Amazon Technologies, Inc.

Inventor： ANTHONY NICHOLAS LIGUORI ,  JAN SCHOENHERR ,  KARIMALLAH AHMED MOHAMMED RASLAN ,  KONRAD JAN MILLER ,  FILIPPO SIRONI

IPC: G06F9/455

CPC classification number: G06F9/45558 ,  G06F9/45533 ,  G06F9/5077 ,  G06F21/575 ,  G06F2009/45575 ,  G06F2009/45579

Abstract: An opportunistic hypervisor determines that a guest virtual machine of a virtualization host has voluntarily released control of a physical processor. The hypervisor uses the released processor to identify and initiate a virtualization management task which has not been completed. In response to determining that at least a portion of the task has been performed, the hypervisor enters a quiescent state, releasing the physical processor to enable resumption of the guest virtual machine.

公开(公告)号：US20180004539A1

公开(公告)日：2018-01-04

申请号：US15199497

申请日：2016-06-30

Applicant: Amazon Technologies, Inc.

Inventor： ANTHONY NICHOLAS LIGUORI ,  JAN SCHOENHERR ,  KARIMALLAH AHMED MOHAMMED RASLAN ,  KONRAD JAN MILLER ,  FILIPPO SIRONI

IPC: G06F9/44 ,  G06F9/455 ,  G06F12/1009

CPC classification number: G06F9/4406 ,  G06F8/656 ,  G06F9/45558 ,  G06F12/1009 ,  G06F2009/45575 ,  G06F2009/45583 ,  G06F2009/45587 ,  G06F2212/152

Abstract: An offloaded virtualization management component of a virtualization host receives an indication from a hypervisor of a portion of main memory of the host for which memory allocation decisions are not to be performed by the hypervisor. The offloaded virtualization management component assigns a subset of the portion to a particular guest virtual machine and provides an indication of the subset to the hypervisor.