摘要:
The present disclosure relates to the handling of interrupts in a environment that utilizes virtual machines, and, more specifically, to the steering of interrupts between multiple logical processors running virtual machines.
摘要:
An embodiment of the present invention is a technique to enhance address translation performance. A register stores capability indicators to indicate capability supported by a circuit in a chipset for address translation of a guest physical address to a host physical address. A plurality of multi-level page tables is used for page walking in the address translation. Each of the page tables has page table entries. Each of the page table entries has at least an entry specifier corresponding to the capability indicated by the capability indicators.
摘要:
An embodiment of the present invention is a technique to provide cache support for direct memory access address translation. A cache structure stores cached entries used in address translation of a guest physical address to a host physical address. The guest physical address corresponds to a guest domain identified by a guest domain identifier in an input/output (I/O) transaction requested by an I/O device. A register stores an invalidating domain identifier identifying an invalidating domain and an indicator indicating invalidating an entry in the cached entries having a tag.
摘要:
Embodiments of an apparatus, method, and system for encoding direct cache access transactions based on a memory access data structure are disclosed. In one embodiment, an apparatus includes memory access logic and transaction logic. The memory access logic is to determine whether to allow a memory access based on a memory access data structure. The transaction logic is to assign direct cache access attributes to a transaction based on the memory access data structure.
摘要:
A apparatus is disclosed. The apparatus includes a remapping circuit to facilitate access of one or more I/O devices to a memory device for direct memory access (DMA) transactions. The remapping circuit includes a translation mechanism to perform memory address translations for I/O DMA transactions via address window-based translations.
摘要翻译:公开了一种装置。 该装置包括重新映射电路,以便于将一个或多个I / O设备访问到用于直接存储器访问(DMA)事务的存储器设备。 重新映射电路包括一个翻译机制,用于通过地址窗口的翻译来执行用于I / O DMA事务的存储器地址转换。
摘要:
In some embodiments, the invention involves a system to deprivilege components of a virtual machine monitor and enable deprivileged service virtual machines (SVMs) to handle selected trapped events. An embodiment of the invention is a hybrid VMM operating on a platform with hardware virtualization support. The hybrid VMM utilizes features from both hypervisor-based and host-based VMM architectures. In at least one embodiment, the functionality of a traditional VMM is partitioned into a small platform-dependent part called a micro-hypervisor (MH) and one or more platform-independent parts called service virtual machines (SVMs). The micro-hypervisor operates at a higher virtual machine (VM) privilege level than any SVM, while the SVM and other VMs may still have access to any instruction set architecture (ISA) privilege level. Other embodiments are described and claimed.
摘要:
A system management request for a system management function is received from a virtual machine. A successful status is returned to the virtual machine in response to the system management request. A system management function is performed in response to the system management request and an aggregation of other system management requests directed to the system management function made by other virtual machines.
摘要:
Provided are a method, system, and article of manufacture, wherein in one embodiment of the method metadata related to a packet may be allocated in a host memory by a protocol processor, wherein the host memory may be comprised in a host that may be capable of being coupled to a network adapter. The metadata may be copied from the host memory to an adapter memory that may be associated with the network adapter. The copied metadata may be processed by the protocol processor.
摘要:
Provided are a method, system, and article of manufacture, wherein in one implementation of the method a memory buffer is allocated in a host memory by a protocol processor, wherein the host memory is comprised in a host that is coupled to a network adapter. A packet is processed initially at the network adapter to generate data for offloading to the memory buffer in the host. The generated data is offloaded by the protocol processor to the memory buffer in the host. The offloaded data is processed by the protocol processor.