发明名称 |
Mechanism to prevent illegal access to task address space by unauthorized tasks |
摘要 |
A method and data processing system for tracking global shared memory (GSM) operations to and from a local node configured with a host fabric interface (HFI) coupled to a network fabric. During task/job initialization, the system OS assigns HFI window(s) to handle the GSM packet generation and GSM packet receipt and processing for each local task. HFI processing logic automatically tags each GSM packet generated by the HFI window with a global job identifier (ID) of the job to which the local task is affiliated. The job ID is embedded within each GSM packet placed on the network fabric. On receipt of a GSM packet from the network fabric, the HFI logic retrieves the embedded job ID and compares the embedded job ID with the ID within the HFI window(s). GSM packets are forwarded to an HFI window only when the embedded job ID matches the HFI window's job ID. |
申请公布号 |
US8275947(B2) |
申请公布日期 |
2012.09.25 |
申请号 |
US20080024410 |
申请日期 |
2008.02.01 |
申请人 |
ARIMILLI LAKSHMINARAYANA B.;BLACKMORE ROBERT S.;KIM CHULHO;RAJAMONY RAMAKRISHNAN;XUE HANHONG;INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
ARIMILLI LAKSHMINARAYANA B.;BLACKMORE ROBERT S.;KIM CHULHO;RAJAMONY RAMAKRISHNAN;XUE HANHONG |
分类号 |
G06F13/00;G06F9/46;G06F13/28;G06F15/167 |
主分类号 |
G06F13/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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