Invention Grant
- Patent Title: Live partition mobility enabled hardware accelerator address translation fault resolution
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Application No.: US16238862Application Date: 2019-01-03
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Publication No.: US10831593B2Publication Date: 2020-11-10
- Inventor: Lakshminarayana B. Arimilli , Richard L. Arndt , Bartholomew Blaner
- Applicant: International Business Machines Corporation
- Applicant Address: US NY Armonk
- Assignee: International Business Machines Corporation
- Current Assignee: International Business Machines Corporation
- Current Assignee Address: US NY Armonk
- Agency: Lieberman & Brandsdorfer, LLC
- Main IPC: G06F11/30
- IPC: G06F11/30 ; G06F11/10 ; G06F9/455 ; G06F12/1036 ; G06F13/40 ; G06F13/16

Abstract:
Hardware accelerator memory address translation fault resolution is provided. A hardware accelerator and a switchboard are in communication with a processing core. The hardware accelerator determines at least one memory address translation related to an operation having a fault. The operation and the fault memory address translation are flushed from the hardware accelerator including augmenting the operation with an entity identifier. The switchboard forwards the operation with the fault memory address translation and the entity identifier from the hardware accelerator to a second buffer. The operating system repairs the fault memory address translation. The operating system sends the operation to the processing core utilizing an effective address based on the entity identifier. The switchboard, supported by the processing core, forwards the operation with the repaired memory address translation to a first buffer and the hardware accelerator executes the operation with the repaired address.
Public/Granted literature
- US20190155683A1 Live Partition Mobility Enabled Hardware Accelerator Address Translation Fault Resolution Public/Granted day:2019-05-23
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