Back to results
US 8,806,172 B2Granted
Maintaining processor resources during architectural evens
AssigneeIntel Corporation
InventorsJason W. Brandt, Sanjoy K. Mondal, Richard A. Uhlig, Gilbert Neiger, Robert T. George
Life of this patent
Estimating the term…
Abstract
In one embodiment of the present invention, a method includes switching between a first address space and a second address space, determining if the second address space exists in a list of address spaces; and maintaining entries of the first address space in a translation buffer after the switching. In such manner, overhead associated with such a context switch may be reduced.
Claims8
A method comprising:
- switching between a first address space and a second address space;
- determining, in response to the switching, if the second address space exists in a list of address spaces maintained by a processor to identify at least different active address spaces and locations in linear address spaces corresponding thereto;
- and
- maintaining entries of the first address space in a translation buffer after the switching.
1 more element
An apparatus comprising:
- a processor resource having entries of first and second address spaces, the first and second address spaces corresponding to a respective first and second address identifier;
- an execution engine coupled to the processor resource to maintain at least a portion of the entries of the first address space upon a context switch to the second address space;
- and
- a processor coupled to the execution engine to store a list of address spaces to identify at least different active address spaces and locations in linear address spaces corresponding thereto, wherein the processor is to be accessed on the context switch to determine if the second address space is present in the list of address spaces.
1 more element
Dependencies are inferred from the claim text.