发明授权
US07124274B2 Virtual to physical memory address mapping within a system having a secure domain and a non-secure domain
有权
具有安全域和非安全域的系统内的虚拟到物理内存地址映射
- 专利标题: Virtual to physical memory address mapping within a system having a secure domain and a non-secure domain
- 专利标题(中): 具有安全域和非安全域的系统内的虚拟到物理内存地址映射
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申请号: US10714560申请日: 2003-11-17
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公开(公告)号: US07124274B2公开(公告)日: 2006-10-17
- 发明人: Simon Charles Watt , Christopher Bentley Dornan , Luc Orion , Nicolas Chaussade , Lionel Belnet , Stephane Eric Sebastien Brochier , David Hennah Mansell , Michael Robert Nonweiler
- 申请人: Simon Charles Watt , Christopher Bentley Dornan , Luc Orion , Nicolas Chaussade , Lionel Belnet , Stephane Eric Sebastien Brochier , David Hennah Mansell , Michael Robert Nonweiler
- 申请人地址: GB Cambridge
- 专利权人: Arm Limited
- 当前专利权人: Arm Limited
- 当前专利权人地址: GB Cambridge
- 代理机构: Nixon & Vanderhye P.C.
- 优先权: GB0226906.6 20021118; GB0303449.3 20030214
- 主分类号: G06F12/00
- IPC分类号: G06F12/00
摘要:
An apparatus for processing data, the apparatus comprising: a processor operable in a plurality of modes and either a secure domain or a non-secure domain including at least one secure mode being a mode in the secure domain; and at least one non-secure mode being a mode in the non-secure domain. When the processor is executing a program in a secure mode, the program has access to secure data which is not accessible when the processor is operating in a non-secure mode. The processor further includes a non-secure translation table base address register and a secure translation table base address register operable in the non-secure and secure domain, respectively, to indicate a region of memory storing either non-secure or secure domain memory mapping data defining how virtual addresses are translated to physical addresses within either the non-secure or secure domain.
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