基本信息:
- 专利标题： REALM MANAGEMENT UNIT-PRIVATE MEMORY REGIONS
- 申请号：PCT/GB2018/051581 申请日：2018-06-11
- 公开(公告)号：WO2019002814A1 公开(公告)日：2019-01-03
- 发明人： PARKER, Jason , EVANS, Matthew Lucien , STOCKWELL, Gareth Rhys , KOVACEVIC, Djordje
- 申请人： ARM LIMITED
- 申请人地址： 110 Fulbourn Road Cherry Hinton Cambridge CB1 9NJ GB
- 专利权人： ARM LIMITED
- 当前专利权人： ARM LIMITED
- 当前专利权人地址： 110 Fulbourn Road Cherry Hinton Cambridge CB1 9NJ GB
- 代理机构： BERRYMAN, Robert
- 优先权： GB1710345.8 20170628
- 主分类号： G06F12/14
- IPC分类号： G06F12/14 ; G06F21/62
摘要：
Memory access circuitry (26) enforces ownership rights for memory regions. A given memory region is associated with an owner realm specified from multiple realms, each realm corresponding to a portion of at least one software process executed by processing circuitry (8). A realm management unit (RMU) (20) is provided to perform realm management operations for managing the realms. The memory access circuitry (26) controls access to a given memory region in dependence on at least one status attribute specifying whether the given memory region is an RMU-private memory region reserved for exclusive access by the RMU (20).
IPC结构图谱:
| G | 物理 |
| --G06 | 计算；推算；计数 |
| ----G06F | 电数字数据处理 |
| ------G06F12/00 | 在存储器系统或体系结构内的存取、寻址或分配 |
| --------G06F12/14 | .阻止存储器越权使用的保护 |