Abstract: Generally described, aspects of the present disclosure relate to a live update process of the virtual machine monitor during the operation of the virtual machine instances. An update to a virtual machine monitor can be a difficult process to execute because of the operation of the virtual machine instances. Generally, in order to update the virtual machine monitor, the physical computing device needs to be rebooted, which interrupts operation of the virtual machine instances. The live update process provides for a method of updating the virtual machine monitor without rebooting the physical computing device.

Abstract: A trusted co-processor can provide a hardware-based observation point into the operation of a host machine owned by a resource provider or other such entity. The co-processor can be installed via a peripheral card on a fast bus, such as a PCI bus, on the host machine. The provider can provide the customer with expected information that the customer can verify through a request to an application programming interface (API) of the card, and after the customer verifies the information the customer can take logical ownership of the card and lock out the provider. The card can then function as a trusted but limited environment that is programmable by the customer. The customer can subsequently submit verification requests to the API to ensure that the host has not been unexpectedly modified or is otherwise operating as expected.

Abstract: Generally described, the present application relates to systems and methods for the managing virtual machines instances using a physical computing device and an offload device. The offload device can be a separate computing device that includes computing resources (e.g., processor and memory) separate from the computing resources of the physical computing device. The offload device can be connected to the physical computing device via a bus interface. The bus interface can be a high speed, high throughput, low latency interface such as a Peripheral Component Interconnect Express (PCIe) interface. The offload device can be used to offload virtualization and processing of virtual components from the physical computing device, thereby increasing the computing resources available to the virtual machine instances.

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.

Abstract: Generally described, the present application relates to systems and methods for the managing virtual machines instances using a physical computing device and an offload device. The offload device can be a separate computing device that includes computing resources (e.g., processor and memory) separate from the computing resources of the physical computing device. The offload device can be connected to the physical computing device via a interconnect interface. The interconnect interface can be a high speed, high throughput, low latency interface such as a Peripheral Component Interconnect Express (PCIe) interface. The offload device can be used to offload virtualization and processing of virtual components from the physical computing device, thereby increasing the computing resources available to the virtual machine instances.

Abstract: A trusted co-processor can provide a hardware-based observation point into the operation of a host machine owned by a resource provider or other such entity. The co-processor can be installed via a peripheral card on a fast bus, such as a PCI bus, on the host machine. The provider can provide the customer with expected information that the customer can verify through a request to an application programming interface (API) of the card, and after the customer verifies the information the customer can take logical ownership of the card and lock out the provider. The card can then function as a trusted but limited environment that is programmable by the customer. The customer can subsequently submit verification requests to the API to ensure that the host has not been unexpectedly modified or is otherwise operating as expected.

Abstract: Generally described, physical computing devices in a virtual network can be configured to host a number of virtual machine instances. The physical computing devices can be operably coupled with offload devices. In accordance with an aspect of the present disclosure, a security component can be incorporated into an offload device. The security component can be a physical device including a microprocessor and storage. The security component can include a set of instructions configured to validate an operational configuration of the offload device or the physical computing device to establish that they are configured in accordance with a secure or trusted configuration. In one example, a first security component on the offload device can validate the operational computing environment on the offload device and a second security component on the physical computing device can validate the operational computing environment on the physical computing device.

Abstract: Technology for migration of a computing instance is provided. In one example, a method may include receiving instructions to initiate migration of the computing instance from a first host to a second host. A first message for sending to the first host may be generated which includes instructions to send data representing the computing instance to the second host. The first message may further include encryption information for use in deriving at least one key for encrypting communications to the second host from the first host. A second message for sending to the second host may be generated which includes instructions to receive the data representing the computing instance from the first host. The second message may further include information for use in deriving at least one key for decrypting communications from the first host. The first and second messages may be sent to the respective first and second hosts.

Abstract: Generally described, aspects of the present disclosure relate to a live update process of the virtual machine monitor during the operation of the virtual machine instances. An update to a virtual machine monitor can be a difficult process to execute because of the operation of the virtual machine instances. Generally, in order to update the virtual machine monitor, the physical computing device needs to be rebooted, which interrupts operation of the virtual machine instances. The live update process provides for a method of updating the virtual machine monitor without rebooting the physical computing device.

Abstract: Generally described, aspects of the present disclosure relate to loading an updated virtual machine monitor on the physical computing device during a boot process. The updated virtual machine monitor may be loaded from an update manager external to the virtual machine monitor, such as the offload device or a server connected with the physical computing device over a network. In certain embodiments, the updated virtual machine monitor may be loaded in a tiered process by first loading a startup virtual machine monitor, which automatically updates by loading the updated virtual machine monitor. The startup virtual machine monitor may be a virtual machine monitor with less functionality than the updated machine manager, such as where the startup virtual machine monitor may be a “lite” or simple virtual machine monitor while the updated virtual machine monitor may be a fully functional virtual machine monitor of the most recent update or version.

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.

Abstract: A tiered credentialing approach provides assurance to customers having virtual machines running in a remote environment that the virtual images for these machines are in a pristine state and running in a trusted execution environment. The environment can be divided into multiple subsystems, each having its own cryptographic boundary, secure storage, and trusted computing capabilities. A trusted, limited subsystem can handle the administrative tasks for virtual machines running on the main system of a host computing device. The limited system can receive a certificate from a certificate authority, and can act as a certificate authority to provide credentials to the main system. Upon an attestation request, the subsystems can provide attestation information using the respective credentials as well as the certificate chain. An entity having the appropriate credentials can determine the state of the system from the response and verify the state is as expected.

Abstract: Techniques for updating code of a device may be described. In an example, bus may connect the device to a management entity. The device may run a first version of the code. A second version of the code may be available from memory. The device may access the second version from the memory, stop running the first version of the code, and start running the second version of the code without restarting the management entity or the device.

Abstract: Generally described, the present application relates to systems and methods for the managing virtual machines instances using a physical computing device and an offload device. The offload device can be a separate computing device that includes computing resources (e.g., processor and memory) separate from the computing resources of the physical computing device. The offload device can be connected to the physical computing device via a bus interface. The bus interface can be a high speed, high throughput, low latency interface such as a Peripheral Component Interconnect Express (PCIe) interface. The offload device can be used to offload virtualization and processing of virtual components from the physical computing device, thereby increasing the computing resources available to the virtual machine instances.

Abstract: Disclosed herein are techniques for migrating data from a source memory range to a destination memory while data is being written into the source memory range. An apparatus includes a control logic configured to receive a request for data migration and initiate the data migration using a direct memory access (DMA) controller, while the source memory range continues to accept write operations. The apparatus also includes a tracking logic coupled to the control logic and configured to track write operations performed to the source memory range while data is being copied from the source memory range to the destination memory. The control logic is further configured to initiate copying data associated with the tracked write operations to the destination memory.

Abstract: Generally described, physical computing devices in a virtual network can be configured to host a number of virtual machine instances. The physical computing devices can be operably coupled with offload devices. In accordance with an aspect of the present disclosure, a security component can be incorporated into an offload device. The security component can be a physical device including a microprocessor and storage. The security component can include a set of instructions configured to validate an operational configuration of the offload device or the physical computing device to establish that they are configured in accordance with a secure or trusted configuration. In one example, a first security component on the offload device can validate the operational computing environment on the offload device and a second security component on the physical computing device can validate the operational computing environment on the physical computing device.

Abstract: Encapsulated packets may be generated for different packets transmitted between a source instance and destination instance in a computer system. The source instance and destination instance may be implemented by different physical hosts linked by multiple network paths. Congestion of the multiple network paths may be determined and path-balancing polices may be implemented in response to the determined congestion. Each encapsulation packet comprises contents of a corresponding packet, and one or more data values selected in accordance with a path-balancing policy. The data values added to one encapsulation packet may differ from those added to another. Different network paths to the destination may be selected for different encapsulation packets of a given transmission based at least in part on the added data values.

Abstract: A formalized set of interfaces (e.g., application programming interfaces (APIs)) is described, that uses a security scheme, such as asymmetric (or symmetric) cryptography, in order authorize and authenticate requests sent to a virtualization later. The interfaces can be invoked to perform security monitoring, forensic capture, and/or patch software systems at runtime. In addition to the foregoing, other aspects are described in the claims, detailed description, and figures.

Abstract: Generally described, aspects of the present disclosure relate to a live update process of the virtual machine monitor during the operation of the virtual machine instances. An update to a virtual machine monitor can be a difficult process to execute because of the operation of the virtual machine instances. Generally, in order to update the virtual machine monitor, the physical computing device needs to be rebooted, which interrupts operation of the virtual machine instances. The live update process provides for a method of updating the virtual machine monitor without rebooting the physical computing device.

Abstract: Generally described, physical computing devices in a virtual network can be configured to host a number of virtual machine instances. The physical computing devices can be operably coupled with offload devices. In accordance with an aspect of the present disclosure, a security component can be incorporated into an offload device. The security component can be a physical device including a microprocessor and storage. The security component can include a set of instructions configured to validate an operational configuration of the offload device or the physical computing device to establish that they are configured in accordance with a secure or trusted configuration. In one example, a first security component on the offload device can validate the operational computing environment on the offload device and a second security component on the physical computing device can validate the operational computing environment on the physical computing device.