Multi-core page table sets of attribute fields

An apparatus comprising:

• means for storing:
• 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 first page table entry;
• and
• a physical page of memory associated with the physical address;
• first means for processing, wherein the first means for processing comprises:
• means for reading, from the first page table entry, the physical address;
• means for determining 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 means for processing, and wherein the first page attribute data is included in one or more first fields;
• and
• means for accessing a physical page of memory with the physical address according to the one or more accessibility attributes of the first page attribute data;
• a second means for processing, wherein the second means for processing comprises:
• means for reading, from the first page table, the first page table entry;
• means for determining the physical address from the first page table entry;
• means for determining second page attribute data from the alternative location, wherein the alternate location includes one or more second fields that are separate from the one of more first fields, the alternate location is a page table entry that is separate from the first page table entry, 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 means for processing;
• and
• means for accessing the physical page of memory associated with the physical address according to the one or more accessibility attributes of the second page attribute data.

An apparatus comprising:

• 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 first page table entry;
• and
• a physical page of memory associated with the physical address;
• a first processing unit configured to:
• read, from the first page table, the physical address;
• determine 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, and wherein the first page attribute data is included in one or more first fields;
• and
• access the physical page of memory associated with the physical address according to the one or more accessibility attributes of the first page attribute data;
• a second processing unit configured to:
• read, from the first page table, the first page table entry;
• determine the physical address from the first page table entry;
• determine second page attribute data from the alternative location, wherein the alternate location includes one or more second fields that are separate from the one of more first fields, the alternate location is a page table entry that is separate from the first page table entry, 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;
• and
• access the physical page of memory associated with the physical address according to the one or more accessibility attributes of the second page attribute data.

A non-transitory computer-readable storage medium having stored thereon instructions that when executed cause a first processing unit and a second processing unit to:

• read, with a first processing unit, a physical address from a first page table entry in a first page table;
• determine, 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, and wherein the first page attribute data is included in one or more first fields;
• read, with the second processing unit, the physical address from the first page table entry in the first page table;
• determine, with the second processing unit, second page attribute data from an alternative location, wherein the alternate location includes one or more second fields that are separate from the one of more first fields, the alternate location is a page table entry that is separate from the first page table entry, 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;
• access, 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
• access, 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.