Information processing apparatus
OwnerHiroshi Yao, Tatsunori Kanai +1inventors
InventorsHiroshi Yao, Tatsunori Kanai, Kenichiro Yoshii
Life of this patent
Estimating the term…
Abstract
An information processing apparatus includes a storage unit, a processor, a channel, a detecting unit, and a control unit. The storage unit stores therein privilege software that is allowed to access a first access range. The processor executes the privilege software and software that is allowed to access a second access range. The channel connects the storage unit and the processor. The detecting unit detects a fetch request that is issued by the processor through the channel and specifies an address at which the privilege software is stored. The control unit controls an access range of the processor based on whether the fetch request is detected.
Claims13
An information processing apparatus comprising:
- a storage unit that stores therein first software that is allowed to access a first access range;
- a processor that executes the first software and second software that is allowed to access a second access range narrower than the first access range;
- a channel for communicating data to execute the first software on the processor, the channel connecting the storage unit and the processor;
- a detecting unit that detects a fetch request that is issued by the processor through the channel and specifies a storage address in the storage unit at which the first software is stored;
- and
- a control unit that controls an access range of the processor based on whether the fetch request is detected.
Dependencies are inferred from the claim text.