摘要:
In various embodiments a traffic class manager is a resource within a virtualized computer systems trusted entity (e.g. a hypervisor, trusted partition, etc.) that maps requirements from a platform management and associated network capabilities onto an adapter (e.g. SR-IOV adapter, etc.) in order to appropriately allocate adapter and network resources to virtualized computer partitions. In various embodiments the traffic class manager defines network traffic classes that meet the objectives of a platform administrator based on the capabilities of the adapter and the network attached to the adapter ports. Once the traffic classes are defined, in various embodiments, the traffic class manager enforces the assignment of a traffic class to a virtual interface queue pair within a partition.
摘要:
An audio application program is isolated from an Internet application program in a cell phone system having a processor. An operating system program, a partition manager process and the audio and Internet application programs are stored in a computer readable memory of the cell phone. The method includes executing the partition manager process, the audio application program and the Internet application program by the cell phone system processor. Executing the partition manager process includes the partition manager process controlling the audio application program executing to be associated with a first executing instance of the cell phone operating system and the Internet application program executing to be associated with a second executing instance of the cell phone operating system, so that the audio application program is isolated from the Internet application program.
摘要:
A method, computer program product, and distributed data processing system that allows a system image within a multiple system image virtual server to directly expose a portion, or all, of its associated system memory to a shared PCI adapter without having to go through a trusted component, such as a Hypervisor. Specifically, the present invention is directed to a mechanism for sharing conventional PCI I/O adapters, PCI-X I/O Adapters, PCI-Express I/O Adapters, and, in general, any I/O adapter that uses a memory mapped I/O interface for communications.
摘要翻译:一种方法,计算机程序产品和分布式数据处理系统,其允许多系统映像虚拟服务器内的系统映像将其相关系统存储器的一部分或全部直接暴露给共享PCI适配器,而无需经过可信任的 组件,如Hypervisor。 具体地,本发明涉及用于共享常规PCI I / O适配器,PCI-X I / O适配器,PCI-Express I / O适配器的机制,并且一般地,使用使用存储器映射的任何I / O适配器 I / O接口进行通讯。
摘要:
A method, mechanism and computer usable medium is provided for distributing I/O fabric errors to the appropriate root nodes in a multi-root environment. The case where the I/O fabric is attached to more than one root node and where each root can potentially share with the other roots the I/O adapter (IOA) resources which are attached to the I/O is addressed. Additionally, a method, mechanism and computer usable medium is provided by which errors detected in an I/O fabric may be routed to all root nodes which may be affected by the error, while not being reported to the root nodes that will not be affected by those errors. In particular, distributed computing system which uses the PCI Express protocol to communicate over the I/O fabric is addressed.
摘要:
Mechanisms for differentiating traffic types in a multi-root PCI Express environment are provided. The mechanisms generate a first mapping data structure that, for each single-root virtual hierarchy in the multi-root data processing system, associates a plurality of traffic classes with a plurality of priority groups and maps each traffic class in the plurality of traffic classes to a corresponding virtual channel in a plurality of virtual channels. Moreover, a second mapping data structure is generated that maps each virtual channel in the plurality of virtual channels to corresponding virtual link in a plurality of virtual links of the multi-root data processing system. Traffic of a particular priority group is routed from a single-root virtual hierarchy to a particular virtual link in the plurality of the virtual links based on the first mapping data structure and second mapping data structure.
摘要:
A method and apparatus is provided for routing error messages in a distributed computer system comprising multiple root nodes, and further comprising one or more PCI switches and one or more I/O adapters, wherein each root node includes one or more system images. In one useful embodiment, a method is provided for routing I/O error messages to root nodes respectively associated with the errors contained in the messages. The method includes detecting occurrence of an error at a specified one of the adapters, wherein the error affects one of the system images, and generating an error message at the specified adapter. The method further comprises routing the error message from the specified adapter to the particular root node that includes the affected system image. The error message is then selectively processed at the particular root node, in order to identify the affected system image. Usefully, the step of routing the error message includes using a bus/device/function number associated with the error, together with a routing table located in one of the PCI switches, to route the error message to the correct root node and system image.
摘要:
A method mechanism is provided for communication between host systems using a transaction protocol and shared memories. Shared memories are initialized based on a discovery process in a communication fabric such that at least one endpoint has address ranges in shared memories of at least two host systems. A transaction oriented protocol may be established for using the shared memories of the host systems to communicate between root complexes and endpoints of the same or different host systems. The transaction oriented protocol specifies a series of transactions to be performed by the various elements, e.g., root complex or endpoint, to push or pull data. Various combinations of push and pull transactions may be utilized.
摘要:
When a hypervisor in a computer server receives input/output (I/O) data traffic, the hypervisor sends the I/O data traffic to a security sensor application shared by multiple operating system (OS) partitions. If the security sensor application indicates that the I/O data traffic meets pre-defined security standards in the security sensor application, and the I/O data traffic is addressed to one of the OS partitions in the computer server, the hypervisor sends the I/O data traffic to the applicable OS partition. If the I/O data traffic meets the pre-defined security standards, and the I/O data traffic is not addressed to one of the OS partitions, the hypervisor sends the I/O data traffic to an external destination in a network coupled to the computer server.
摘要:
In a distributed computer system having multiple root nodes, a challenge protocol is provided, for use in determining or confirming the root node in which a PCI Configuration Manager (PCM) actually resides. This node is referred to as the master node. The challenge procedure is activated whenever the identity of the PCM, which is determined by the root node in which it resides, appears to be uncertain. The challenge procedure resolves this uncertainty, and enables the PCM to continue to configure routings throughout the system. In a useful embodiment, a method is directed to a distributed computer system of the above type which is further provided with PCI switches and with adapters that are available for sharing by different nodes. The method includes the steps of selecting a first one of the root nodes to be master root node, and operating the first root node to query the configuration space of a particular one of the PCI switches. The method further includes detecting information indicating that a second root node is considered to be the master root node for the particular switch. A challenge protocol is implemented in response to this detected information, to seek confirmation that the first root node is the master root node. The configuration space querying procedure is continued if the first root node is confirmed to be the master root node, and is otherwise aborted.
摘要:
Mechanisms for enabling both native and non-native input/output virtualization (IOV) in a single I/O adapter are provided. The mechanisms allow a system with a large number of logical partitions (LPARs) and system images to use IOV to share a native IOV enabled I/O adapter or endpoint that does not implement the necessary number of virtual functions (VFs) for each LPAR and system image. A number of VFs supported by the I/O adapter, less one, are assigned to LPARs and system images so that they may make use of native IOV using these VFs. The remaining VF is associated with a virtual intermediary (VI) which handles non-native IOV of the I/O adapter. Any remaining LPARs and system images share the I/O adapter using the non-native IOV via the VI. Thus, any number of LPARs and system images may share the same I/O adapter or endpoint.