Patents by Inventor Hannes Hering

Hannes Hering has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Mapping device addresses to physical memory addresses
    Patent number: 9785597
    Abstract: A data processing system includes a main storage, an input/output memory management unit (IOMMU) coupled to the main storage, a peripheral component interconnect (PCI) device coupled to the IOMMU, and a mapper. The system is configured to allocate an amount of physical memory in the main storage and the IOMMU is configured to provide access to the main storage and to map a PCI address from the PCI device to a physical memory address within the main storage. The mapper is configured to perform a mapping between the allocated amount of physical memory of the main storage and a contiguous PCI address space. The IOMMU is further configured to translate PCI addresses of the contiguous PCI address space to the physical memory address within the main storage.
    Type: Grant
    Filed: April 7, 2016
    Date of Patent: October 10, 2017
    Assignee: International Business Machines Corporation
    Inventors: Gerd Bayer, Hannes Hering, Hoang-Nam Nguyen, Christoph Raisch, Jan-Bernd Themann
  • TECHNIQUES FOR MAPPING DEVICE ADDRESSES TO PHYSICAL MEMORY ADDRESSES
    Publication number: 20160224496
    Abstract: A data processing system includes a main storage, an input/output memory management unit (IOMMU) coupled to the main storage, a peripheral component interconnect (PCI) device coupled to the IOMMU, and a mapper. The system is configured to allocate an amount of physical memory in the main storage and the IOMMU is configured to provide access to the main storage and to map a PCI address from the PCI device to a physical memory address within the main storage. The mapper is configured to perform a mapping between the allocated amount of physical memory of the main storage and a contiguous PCI address space. The IOMMU is further configured to translate PCI addresses of the contiguous PCI address space to the physical memory address within the main storage.
    Type: Application
    Filed: April 7, 2016
    Publication date: August 4, 2016
    Inventors: Gerd Bayer, Hannes Hering, Hoang-Nam Nguyen, Christoph Raisch, Jan-Bernd Themann
  • Techniques for mapping device addresses to physical memory addresses
    Patent number: 9355031
    Abstract: A data processing system includes a main storage, an input/output memory management unit (IOMMU) coupled to the main storage, a peripheral component interconnect (PCI) device coupled to the IOMMU, and a mapper. The system is configured to allocate an amount of physical memory in the main storage and the IOMMU is configured to provide access to the main storage and to map a PCI address from the PCI device to a physical memory address within the main storage. The mapper is configured to perform a mapping between the allocated amount of physical memory of the main storage and a contiguous PCI address space. The IOMMU is further configured to translate PCI addresses of the contiguous PCI address space to the physical memory address within the main storage.
    Type: Grant
    Filed: April 21, 2012
    Date of Patent: May 31, 2016
    Assignee: International Business Machines Corporation
    Inventors: Gerd Bayer, Hannes Hering, Hoang-Nam Nguyen, Christoph Raisch, Jan-Bernd Themann
  • TECHNIQUES FOR MAPPING DEVICE ADDRESSES TO PHYSICAL MEMORY ADDRESSES
    Publication number: 20120272037
    Abstract: A data processing system includes a main storage, an input/output memory management unit (IOMMU) coupled to the main storage, a peripheral component interconnect (PCI) device coupled to the IOMMU, and a mapper. The system is configured to allocate an amount of physical memory in the main storage and the IOMMU is configured to provide access to the main storage and to map a PCI address from the PCI device to a physical memory address within the main storage. The mapper is configured to perform a mapping between the allocated amount of physical memory of the main storage and a contiguous PCI address space. The IOMMU is further configured to translate PCI addresses of the contiguous PCI address space to the physical memory address within the main storage.
    Type: Application
    Filed: April 21, 2012
    Publication date: October 25, 2012
    Applicant: International Business Machines Corporation
    Inventors: Gerd Bayer, Hannes Hering, Hoang-Nam Nguyen, Christoph Raisch, Jan-Bernd Themann