Invention Grant
- Patent Title: Virtual non-volatile memory system
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Application No.: US16940516Application Date: 2020-07-28
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Publication No.: US11340835B2Publication Date: 2022-05-24
- Inventor: Ching-Lung Chao , Hung-Tah Wei , Amber Hokama
- Applicant: Dell Products L.P.
- Applicant Address: US TX Round Rock
- Assignee: Dell Products L.P.
- Current Assignee: Dell Products L.P.
- Current Assignee Address: US TX Round Rock
- Agent Joseph Mencher
- Main IPC: G06F3/06
- IPC: G06F3/06 ; G06F13/16

Abstract:
A virtual non-volatile memory system includes a BIOS coupled to a non-volatile storage system and a volatile memory system. The BIOS designates a portion of the volatile memory system as a virtual NVDIMM, reserves a portion of the non-volatile storage system for storing virtual NVDIMM data, reports the virtual NVDIMM to an operating system using an ACPI NFIT, and emulates an NVDIMM controller. When a virtual NVDIMM storage event occurs, the BIOS copies data from the portion of the volatile memory system designated as the virtual NVDIMM to the portion of the non-volatile storage system reserved for storing virtual NVDIMM data. When the BIOS subsequently determines that a virtual NVDIMM recovery event has occurred, it copies the data stored in the portion of the non-volatile storage system reserved for storing virtual NVDIMM data to the portion of the volatile memory system designated as the virtual NVDIMM.
Public/Granted literature
- US20220035562A1 VIRTUAL NON-VOLATILE MEMORY SYSTEM Public/Granted day:2022-02-03
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