Abstract:
PROBLEM TO BE SOLVED: To provide a method, an apparatus, and a programming means for significantly decreasing the number of instructions required for a dot-product operation. SOLUTION: In one embodiment, the apparatus comprises an execution resource for executing a first instruction decoded to one micro operation. In response to the first instruction, the execution resource calculates the dot product of at least two source operands for a specific data type including an integer and a floating point, and stores the result value in the same register or memory location as one of the source operands. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To expand efficiency and performance of a system while maintaining compatibility with legacy OS software. SOLUTION: A device, a system, a method, and a product work for detecting an input/output access action associated with a configuration memory address and a first memory address bit size. In some cases, the configuration memory address and associated configuration data are connected to a packet with a bit size (for example, 64 bit) of a second memory address larger than that (for example, 32 bits) of a first memory address. The packet is used for establishing compatibility with a legacy operating system communicating with a PCI (Peripheral Component Interconnect) interface-based peripheral device and a similar platform device integrated in the same package as a processor. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
An apparatus, method, machine-readable medium, and system are disclosed. In one embodiment the apparatus is a micro-page table engine that includes logic that is capable of receiving a memory page request for a page in global memory address space. The apparatus also includes a translation lookaside buffer (TLB) that is capable of storing one or more memory page address translations. Additionally, the apparatus also has a page miss handler capable of performing a micro physical address lookup in a page miss handler tag table in response to the TLB not storing the memory page address translation for the page of memory referenced by the memory page request. The apparatus also includes memory management logic that is capable of managing the page miss handler tag table entries. The micro-page table engine allows the TLB to be an agent that determines whether data in a two-level memory hierarchy is in a hot region of memory or in a cold region of memory. When data is in the cold region of memory, the micro-page table engine fetches the data to the hot memory and a hot memory block is then pushed out to the cold memory area.
Abstract:
Method, apparatus, and program means for performing a dot-product operation. In one embodiment, an apparatus includes execution resources to execute a first instruction. In response to the first instruction, said execution resources store to a storage location a result value equal to a dot-product of at least two operands.
Abstract:
In one embodiment, information pertaining to a first fault occurring during operation of a virtual machine (VM) is stored in a first field. A second fault is detected while delivering the first fault to the VM, and a determination is made as to whether the second fault is associated with a transition of control to a virtual machine monitor (VMM). If this determination is positive, information pertaining to the second fault is stored in a second field, and control is transitioned to the VMM.
Abstract:
A technique to enable efficient interrupt communication within a computer system. In one embodiment, an advanced programmable interrupt controller (APIC) is interfaced via a set of of bits within an APIC interface register using various interface instructions or operations, without using memory-mapped input/output (MMIO).
Abstract:
A technique to enable efficient interrupt communication within a computer system. In one embodiment, an advanced programmable interrupt controller (APlC) is interfaced via a set of bits within an APIC interface register using various interface instructions or operations, without using memory-mapped input/output (MMIO).
Abstract:
In one embodiment the apparatus is a micro-page table engine that includes logic that is capable of receiving a memory page request for a page in global memory address space. The apparatus also includes a translation lookaside buffer (TLB) that is capable of storing one or more memory page address translations. Additionally, the apparatus also has a page miss handler capable of performing a micro physical address lookup in a page miss handler tag table in response to the TLB not storing the memory page address translation for the page of memory referenced by the memory page request. The apparatus also includes memory management logic that is capable of managing the page miss handler tag table entries.