US 6,480,941 B1 · Secure partitioning of shared memory based multiprocessor system

Abstract

A method and apparatus for sharing memory in a multiprocessor computing system. More specifically, this invention provides a number of system buses with each bus being connected to a respective memory controller which controls a corresponding partition of the memory. Any one of the processors can use any one of the system buses to send real addresses to the connected memory controller which then converts the real addresses into physical addresses corresponding to the partition of memory that is controlled by the receiving memory controller. The processors can be dynamically assigned to different partitions of the memory by via a switching mechanism.

Claims13

Dependent claims

A configurable shared memory computer system comprising:

a memory;
a switch having a plurality of ports;
a plurality of processors connected to one of said ports and dynamically assigned to a partition of said memory by configuring said switch;
and
a plurality of memory controller interfaces, each interface being connected to one of said ports and controlling access to a partition of said memory, each interface receiving a real address through said switch from one of said processors which is assigned to a partition, where access to latter said partition is controlled by said each interface, and each interface for dynamically remapping said real addresses into physical addresses in said memory, wherein said processors share said memory.

2 more elements

Dependencies are inferred from the claim text.

Secure partitioning of shared memory based multiprocessor system

Life of this patent

Secure partitioning of shared memory based multiprocessor system

Life of this patent

Abstract

Claims13