Memory access control method and system and storage device controller
A technology of a storage device and a control method, applied in the computer field, can solve the problem that data does not have an effective data protection mechanism and the like
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[0093] As described in the background, after the virtual machine data is written into the memory, there is a risk of being tampered with.
[0094] In order to prevent the data in the storage device from being tampered with, the inventors have found through research that a data integrity protection mechanism can be added to the data in the storage device. Take the integrity protection of virtual machine memory data as an example for illustration. In order for the virtual machine to verify the integrity of the memory data, as an implementable solution, it is possible to add information that can verify the integrity of the written data to the data written into the memory. For the convenience of description, the data that can be written to The information for data integrity verification is called message authentication data. Consider writing the message authentication data into a second storage device outside the internal memory, and when reading the written data in the internal ...
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