Semiconductor device
AssigneeRenesas Electronics Corporation
InventorsYohei ONISHI, Yuichi TAKITSUNE
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Abstract
A semiconductor device is provided, the semiconductor device including: a table for setting-register access right permission, connected to a secure CPU and storing a region ID and an address of a virtual machine; and a first combination-corresponding comparator circuit determining whether or not a region ID of a first virtual machine for changing a setting register and an address assigned by the first virtual machine correspond to the region ID and the address of the virtual machine stored in the table for setting-register access right permission.
Claims12
A semiconductor device comprising:
- a table for setting-register access right permission, connected to a secure CPU and storing a region ID and an address of a virtual machine;
- and
- a first combination-corresponding comparator circuit determining whether or not a region ID of a first virtual machine for changing a setting register and an address assigned by the first virtual machine correspond to the region ID and the address of the virtual machine stored in the table for setting-register access right permission.
A semiconductor device comprising:
- a table for RAM access right permission, connected to a secure CPU and storing a region ID and an address of a virtual machine;
- and
- a second combination-corresponding comparator circuit determining whether or not a region ID of a first virtual machine for changing a RAM and an address assigned by the first virtual machine correspond to the region ID and the address of the virtual machine stored in the table for RAM access right permission.
Dependencies are inferred from the claim text.