Invention Grant
- Patent Title: Virtual memory management
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Application No.: US16457975Application Date: 2019-06-29
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Publication No.: US11042486B2Publication Date: 2021-06-22
- Inventor: Robert Brigg , Lorenzo Belli
- Applicant: Imagination Technologies Limited
- Applicant Address: GB Kings Langley
- Assignee: Imagination Technologies Limited
- Current Assignee: Imagination Technologies Limited
- Current Assignee Address: GB Kings Langley
- Agency: Potomac Law Group, PLLC
- Agent Vincent M DeLuca
- Priority: GB1810779.7 20180629
- Main IPC: G06T1/60
- IPC: G06T1/60 ; G06F12/1009 ; G06F12/02

Abstract:
A method of managing access to a physical memory formed of n memory page frames using a set of virtual address spaces having n virtual address spaces each formed of a plurality p of contiguous memory pages. The method includes receiving a write request to write a block of data to a virtual address within a virtual address space i of the n virtual address spaces, the virtual address defined by the virtual address space i, a memory page j within that virtual address space i and an offset from the start of that memory page j; translating the virtual address to an address of the physical memory using a virtual memory table having n by p entries specifying mappings between memory pages of the virtual address spaces and memory page frames of the physical memory, wherein the physical memory address is defined by: (i) the memory page frame mapped to the memory page j as specified by the virtual memory table, and (ii) the offset of the virtual address; and writing the block of data to the physical memory address.
Public/Granted literature
- US20200004688A1 Virtual Memory Management Public/Granted day:2020-01-02
Information query