Shared memory in a virtual environment
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United States of America Patent
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Jan 8, 2019
Grant Date -
Jan 18, 2018
app pub date -
Jul 14, 2016
filing date -
Jul 14, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
A server LPAR operating in a virtualized computer shares pages with client LPARs using a shared memory region (SMR). A virtualization function of the computer receives a get-page-ID request associated with a client LPAR to identify a physical page corresponding to a shared page included in the SMR. The virtualization function requests the server LPAR to provide an identity of the physical page. The virtualization function receives a page-ID response comprising the identity of a server LPAR logical page that corresponds to the physical page. The virtualization element determines a physical page identity and communicates the physical page identity to the client LPAR. The virtualization element receives a page ID enter request and enters an identity of the physical page into a translation element of the computer to associate a client LPAR logical page with the physical page.
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