Training procedure change determination to detect attack

A method, comprising:

• writing, to non-volatile memory at a host device, a plurality of reference values associated with a first procedure for training a memory device, wherein each reference value of the plurality of reference values corresponds to one or more respective operating conditions at which the first procedure for training the memory device was performed;
• performing a second procedure for training the memory device based at least in part on a current metric for a channel that is between the host device and the memory device;
• determining that a difference between a result of the second procedure for training the memory device and a reference value of the plurality of reference values satisfies a threshold difference;
• and
• disabling one or more features of the memory device based at least in part on the result of the second procedure for training the memory device and the reference value corresponding to the current metric for the channel, and further based at least in part on determining the difference satisfies the threshold difference.

A method, comprising:

• performing a procedure for training a memory device based at least in part on a current metric for a channel that is between the memory device and a host device;
• receiving, from the host device, first signaling indicative of a command address test (CAT) pattern;
• transmitting, to the host device, second signaling comprising feedback for the first signaling;
• receiving, at the memory device and from the host device, third signaling indicative of a command based at least in part on a result of the procedure for training the memory device, wherein the result of the procedure for training the memory device is based at least in part on the second signaling;
• and
• disabling one or more features of the memory device based at least in part on the command.

A method, comprising:

• writing, to non-volatile memory at a memory device, a plurality of reference values associated with a procedure for training a dynamic random-access memory (DRAM) component of the memory device;
• receiving, from a host device, first signaling indicative of a result of the procedure for training the DRAM component of the memory device based at least in part on a current metric for a channel that is between the host device and the DRAM component of the memory device;
• and
• transmitting, to the host device, second signaling indicative of a change to the channel that is between the host device and the DRAM component of the memory device based at least in part on the result of the procedure for training the DRAM component of the memory device and a reference value of the plurality of reference values corresponding to the current metric for the channel.

An apparatus, comprising:

• a host device;
• and
• logic coupled with the host device and operable to cause the apparatus to:
• perform a plurality of procedures for training a memory device;
• write, to non-volatile memory at the host device, a plurality of reference values associated with a procedure for training the memory device, wherein the plurality of reference values is based at least in part on the plurality of procedures for training the memory device, and wherein each reference value of the plurality of reference values corresponds to one or more respective operating conditions at which the plurality of procedures for training the memory device were performed;
• perform, after writing the plurality of reference values, the procedure for training the memory device based at least in part on a current metric for a channel that is between the host device and the memory device;
• and
• disable one or more features of the memory device based at least in part on a result of the procedure for training the memory device and a reference value of the plurality of reference values corresponding to the current metric for the channel.

An apparatus, comprising:

• a memory device;
• and
• logic coupled with the memory device and operable to cause the apparatus to:
• perform a procedure for training the memory device based at least in part on a current metric for a channel that is between the memory device and a host device;
• receive, from the host device, first signaling indicative of a command address test (CAT) pattern;
• transmit, to the host device, second signaling comprising feedback for the first signaling;
• receive, at the memory device and from the host device, third signaling indicative of a command based at least in part on a result of the procedure for training the memory device, wherein the result of the procedure for training the memory device is based at least in part on the second signaling;
• and
• disable one or more features of the memory device based at least in part on the command.