摘要:
Embodiments of an invention for generating multiple address space identifiers per virtual machine to switch between protected micro-contexts are disclosed. In one embodiment, a method includes receiving an instruction requiring an address translation; initiating, in response to receiving the instruction, a page walk from a page table pointed to by the contents of a page table pointer storage location; finding, during the page walk, a transition entry; storing the address translation and one of a plurality of address source identifiers in a translation lookaside buffer, the one of the plurality of address source identifiers based on one of a plurality of a virtual partition identifiers, at least two of the plurality of virtual partition identifiers associated with one of a plurality of virtual machines; and re-initiating the page walk.
摘要:
Apparatuses, articles, methods, and systems for secure platform voucher service for software within an execution environment. An embodiment includes the ability for a Virtual Machine Monitor, Operating System Monitor, or other underlying platform capability to restrict memory regions for access only by authenticated, authorized and verified software components. A provisioning remote entity or gateway only needs to know a platform's public key or certificate hierarchy to receive verification for any component. The verification or voucher helps assure to the remote entity that no malware running in the platform or on the network will have access to provisioned material. The underlying platform to lock and unlock secrets on behalf of the authenticated/authorized/verified software component provided in protected memory regions only accessible to the software component.
摘要:
In accordance with disclosed embodiments, there are provided methods, systems, and apparatuses for implementing hardware of a virtualized processor based system detecting a specified type of memory access to an identified region of memory and in response to the detecting generating an interrupt for a virtual machine monitor (VMM) of the virtualized processor based system.
摘要:
Embodiments of apparatus, articles, methods, and systems for secure platform voucher service for software components within an execution environment are generally described herein. An embodiment includes the ability for a Virtual Machine Monitor, Operating System Monitor, or other underlying platform capability to restrict memory regions for access only by specifically authenticated, authorized and verified software components, even when part of an otherwise compromised operating system environment. A provisioning remote entity or gateway only needs to know a platform's public key or certificate hierarchy in order to receive verification proof for any component in the platform. The verification proof or voucher helps to assure to the remote entity that no man-in-the-middle, rootkit, spyware or other malware running in the platform or on the network will have access to the provisioned material. The underlying platform to lock and unlock secrets on behalf of the authenticated/authorized/verified software component provided in protected memory regions only accessible to the authenticated/authorized/verified software component. Other embodiments may be described and claimed.
摘要:
A method and device allowing a scan of a data storage device from a remote server are disclosed. In some embodiments, a computing device may include an out-of-band (OOB) configured to compute a first hash value for data stored in one or more sectors of a data storage device at a first time; receive, using communication circuitry, a request to transmit a portion of the data stored in the one or more sectors of the data storage device at a second time, the second time being subsequent to the first time; compute a second hash value for the data stored in the one or more sectors of the data storage device at the second time; and transmit, using the communication circuitry, the requested portion of the data, only if the second hash value does not match the first hash value.
摘要:
In some embodiments, a processor-based system may include at least one processor, at least one memory coupled to the at least one processor, a network interface component, and a management controller. The management controller may be configured to receive information related to a subscription request for a virtual machine, generate configuration information for the network interface component based on the subscription request, and provide the configuration information to the network interface component. Other embodiments are disclosed and claimed.
摘要:
Systems, apparatuses, and methods, and for seamlessly protecting memory regions to protect against hardware-based attacks are disclosed. In one embodiment, an apparatus includes a decoder, control logic, and cryptographic logic. The decoder is to decode a transaction between a processor and memory-mapped input/output space. The control logic is to redirect the transaction from the memory-mapped input/output space to a system memory. The cryptographic logic is to operate on data for the transaction.
摘要:
Methods, apparatuses, articles, and systems for comparing a first security domain of a first memory page of a physical device to a second security domain of a second memory page of the physical device, the security domains being stored in one or more registers of a processor of the physical device, are described herein. Based on the comparison, the processor disallows an instruction from the first memory page to access the second memory page if the first security domain is different from the second security domain. Resultantly, software agents, in particular, critical software agents, may be protected in a virtual technology (VT) environment more efficiently and effectively.
摘要:
Architectures and techniques that allow a firmware agent to operate as a tamper-resistant agent on a host platform that may be used as a trusted policy enforcement point (PEP) on the host platform to enforce policies even when the host operating system is compromised. The PEP may be used to open access control and/or remediation channels on the host platform. The firmware agent may also act as a local policy decision point (PDP) on the host platform in accordance with an authorized enterprise PDP entity by providing policies if a host trust agent is non-responsive and may function as a passive agent when the host trust agent is functional.