Abstract: Secure IoT devices and methods of use are disclosed herein. An example Internet-of-Things (IoT) device includes an interface for transmitting and receiving data on a network; and a chip comprising a reconfigurable hardware core configured to transmit the data using the interface. The reconfigurable hardware core is not vulnerable to malicious attacks can be used to replace a central processing unit (CPU) which is vulnerable to malicious attacks.

Abstract: Secure IoT devices and methods of use are disclosed herein. An example Internet-of-Things (IoT) device includes an interface for transmitting and receiving data on a network; and a chip comprising a reconfigurable hardware core configured to transmit the data using the interface. The reconfigurable hardware core is not vulnerable to malicious attacks can be used to replace a central processing unit (CPU) which is vulnerable to malicious attacks.

Abstract: Secure IoT devices and methods of use are disclosed herein. An example Internet-of-Things (IoT) device includes an interface for transmitting and receiving data on a network; and a chip comprising a reconfigurable hardware core configured to transmit the data using the interface. The reconfigurable hardware core is not vulnerable to malicious attacks can be used to replace a central processing unit (CPU) which is vulnerable to malicious attacks.

Abstract: A processor includes a store buffer to store store instructions to be processed to store data in main memory, a load buffer to store load instructions to be processed to load data from main memory, and a loop invariant code motion (LICM) protection structure coupled to the store buffer and the load buffer. The LPT tracks information to compare an address of a store or snoop microoperation with entries in the LICM and re-loads a load microoperation of a matching entry.

Abstract: A processor of an aspect includes a decode unit to decode a prior instruction that is to have at least a first context, and a subsequent instruction. The subsequent instruction is to be after the prior instruction in original program order. The decode unit is to use the first context of the prior instruction to determine a second context for the subsequent instruction. The processor also includes an execution unit coupled with the decode unit. The execution unit is to perform the subsequent instruction based at least in part on the second context. Other processors, methods, systems, and machine-readable medium are also disclosed.

Abstract: A processor includes a store buffer to store store instructions to be processed to store data in main memory, a load buffer to store load instructions to be processed to load data from main memory, and a loop invariant code motion (LICM) protection structure coupled to the store buffer and the load buffer. The LPT tracks information to compare an address of a store or snoop microoperation with entries in the LICM and re-loads a load microoperation of a matching entry.

Abstract: A processor for redundant stores includes a front end including circuitry to decode instructions from an instruction stream, a data cache unit including circuitry to cache data for the processor, a binary translator, and a memory execution unit. The binary translator includes circuitry to identify a first region of the instruction stream including a redundant store, mark a first starting instruction of the first region with a protection designator, mark a first ending instruction of the first region with a clear designator, and store an amended instruction stream with the markings. The memory execution unit includes circuitry to track the first redundant store based on the protection designator and the clear designator to eliminate the first redundant store.

Abstract: Secure IoT devices and methods of use are disclosed herein. An example Internet-of-Things (IoT) device includes an interface for transmitting and receiving data on a network; and a chip comprising a reconfigurable hardware core configured to transmit the data using the interface. The reconfigurable hardware core is not vulnerable to malicious attacks can be used to replace a central processing unit (CPU) which is vulnerable to malicious attacks.

Abstract: A processor includes a front end including circuitry to decode instructions from an instruction stream, a data cache unit including circuitry to cache data for the processor, and a binary translator. The binary translator includes circuitry to identify a redundant store in the instruction stream, mark the start and end of a region of the instruction stream with the redundant store, remove the redundant store, and store an amended instruction stream with the redundant store removed.

Abstract: Apparatus and method for detecting and recovering from incorrect memory dependence speculation in an out-of-order processor are described herein. For example, one embodiment of a method comprises: executing a first load instruction; detecting when the first load instruction experiences a bad store-to-load forwarding event during execution; tracking the occurrences of bad store-to-load forwarding event experienced by the first load instruction during execution; controlling enablement of an S-bit in the first load instruction based on the tracked occurrences; generating a plurality of load operations responsive to an enabled S-bit in first load instruction, wherein execution of the plurality of load operations produces a result equivalent to that from the execution of the first load instruction.

Abstract: A processor of an aspect includes a decode unit to decode a prior instruction that is to have at least a first context, and a subsequent instruction. The subsequent instruction is to be after the prior instruction in original program order. The decode unit is to use the first context of the prior instruction to determine a second context for the subsequent instruction. The processor also includes an execution unit coupled with the decode unit. The execution unit is to perform the subsequent instruction based at least in part on the second context. Other processors, methods, systems, and machine-readable medium are also disclosed.

Abstract: A processor for redundant stores includes a front end including circuitry to decode instructions from an instruction stream, a data cache unit including circuitry to cache data for the processor, a binary translator, and a memory execution unit. The binary translator includes circuitry to identify a first region of the instruction stream including a redundant store, mark a first starting instruction of the first region with a protection designator, mark a first ending instruction of the first region with a clear designator, and store an amended instruction stream with the markings. The memory execution unit includes circuitry to track the first redundant store based on the protection designator and the clear designator to eliminate the first redundant store.

Abstract: A processor includes a front end including circuitry to decode instructions from an instruction stream, a data cache unit including circuitry to cache data for the processor, and a binary translator. The binary translator includes circuitry to identify a redundant store in the instruction stream, mark the start and end of a region of the instruction stream with the redundant store, remove the redundant store, and store an amended instruction stream with the redundant store removed.

Abstract: A processor may support a two-dimensional (2-D) gather instruction and a 2-D cache. The processor may perform the 2-D gather instruction to access one or more sub-blocks of data from a 2-D image stored in a memory coupled to the processor. The 2-D cache may store the sub-blocks of data in a multiple cache lines. Further, the 2-D cache may support access of more than one cache lines while preserving a 2-D structure of the 2-D image.

Abstract: A processor and method are described for alias detection. For example, one embodiment of an apparatus comprises: reordering logic to receive a set of read and write operations in a program order and to responsively reorder the read and write operations; adjustment information attachment logic to associate adjustment information with one or more of the set of read and write operations, wherein for a read operation the adjustment information is to indicate a number of write operations which the read operation has bypassed and for a write operation the adjustment information is to indicate a number of read operations which have bypassed the write operation; and out-of-order processing logic to determine whether execution of the reordered read and write operations will result in a conflict based, at least in part, on the adjustment information associated with the one or more reads and writes.

Abstract: A processing system implementing techniques for binary translation support using processor instruction prefixes is provided. In one embodiment, the processing system includes a register bank having a plurality of registers to store data for use in executing instructions and a processor core coupled to the register bank. An instruction to be executed by the processor core is received. The instruction is associated with a binary translator operation to translate input instruction sequences to output instruction sequences. An opcode prefix referencing an extended register of the plurality of registers to be used during the binary translator operation. The extended register preserves a source register value of the plurality of registers.

Abstract: Embodiments of apparatus and methods for detecting and recovering from incorrect memory dependence speculation in an out-of-order processor are described herein. For example, one embodiment of a method comprises: executing a first load instruction; detecting when the first load instruction experiences a bad store-to-load forwarding event during execution; tracking the occurrences of bad store-to-load forwarding event experienced by the first load instruction during execution; controlling enablement of an S-bit in the first load instruction based on the tracked occurrences; generating a plurality of load operations responsive to an enabled S-bit in first load instruction, wherein execution of the plurality of load operations produces a result equivalent to that from the execution of the first load instruction.

Abstract: A processor and method are described for alias detection. For example, one embodiment of an apparatus comprises: reordering logic to receive a set of read and write operations in a program order and to responsively reorder the read and write operations; adjustment information attachment logic to associate adjustment information with one or more of the set of read and write operations, wherein for a read operation the adjustment information is to indicate a number of write operations which the read operation has bypassed and for a write operation the adjustment information is to indicate a number of read operations which have bypassed the write operation; and out-of-order processing logic to determine whether execution of the reordered read and write operations will result in a conflict based, at least in part, on the adjustment information associated with the one or more reads and writes.

Abstract: A processor may support a two-dimensional (2-D) gather instruction and a 2-D cache. The processor may perform the 2-D gather instruction to access one or more sub-blocks of data from a 2-D image stored in a memory coupled to the processor. The 2-D cache may store the sub-blocks of data in a multiple cache lines. Further, the 2-D cache may support access of more than one cache lines while preserving a 2-D structure of the 2-D image.

Abstract: A processor may support a two-dimensional (2-D) gather instruction and a 2-D cache. The processor may perform the 2-D gather instruction to access one or more sub-blocks of data from a two-dimensional (2-D) image stored in a memory coupled to the processor. The two-dimensional (2-D) cache may store the sub-blocks of data in a multiple cache lines. Further, the 2-D cache may support access of more than one cache lines while preserving a two-dimensional structure of the 2-D image.