Patent №
US 6,804,729
Granted
2004-10-12
Filed 2002
Owner
INTERNATIONAL BUSINESS MACHINES CORPORATION
Lab
AI components
1
planning
Assignment
Recorded
Dataset
AIPD
2023_r1 edition
Application
10261864
An atomic memory migration apparatus and method are provided. With the apparatus and method, all active DMA mappings to a given physical page of memory are identified and future mappings/unmappings to the physical page are serialized with migrations of current mappings. The identified DMA mappings are then disabled at the bus level and the physical page is migrated to a new memory page. All existing DMA mappings are also migrated to the new page. After migration is completed, the DMA mappings, which have now been migrated to the new page, are reenabled at the bus level.
AI classification
Ownership
INTERNATIONAL BUSINESS MACHINES CORPORATION
assignment · 133600069
Assignors
SWANBERG, RANDAL CRAIG
On an employer assignment, the assignors are typically the inventors.