MULTI-CORE PAGE TABLE SETS OF ATTRIBUTE FIELDS

摘要

A device includes a memory that stores a first page table that includes a first page table entry, wherein the first page table entry further includes a physical address, an alternative location associated with the page table entry, and a physical page of memory associated with the physical address. A first processing unit is configured to: read the first page table entry, and determine the physical address from the first page table entry. The second processing unit is configured to: read the physical address from the first page table entry, determine second page attribute data from the alternative location, wherein the second page attribute data define one or more accessibility attributes of the physical page of memory for the second processing unit, and access the physical page of memory associated with the physical address according to the one or more accessibility attributes.

主权项

1. A method of accessing memory comprising:
reading, with a first processing unit, a physical address from a first page table entry in a first page table; determining, with the first processing unit, first page attribute data from the first page table entry, wherein the first page attribute data define one or more accessibility attributes of the physical page of memory for the first processing unit; reading, with the second processing unit, the physical address from the first page table entry in the first page table; determining, with the second processing unit, second page attribute data from an alternative location, wherein the alternative location is associated with the first page table entry, and wherein the second page attribute data define one or more accessibility attributes of the physical page of memory for the second processing unit; accessing, with the first processing unit, a physical page of memory associated with the physical address according to the one or more accessibility attributes of the first page attribute data; and accessing, with the second processing unit, the physical page of memory associated with the physical address according to the one or more accessibility attributes of the second page attribute data.