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Get Save Operation Requirements (Function Index 2)

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This _DSM Interface for Byte Addressable Energy Backed Function Class (Function Interface 1) function returns information about hardware requirements for a save operation. This function shall succeed for all NVDIMM-Ns that support a host-managed Energy Source (ES) policy. It may return a failure status if the device supports device-managed ES policy and save operation requirements aren't available.

Registers are defined in the Byte Addressable Energy Backed Interface specification.

Input

Arg3

None.

Output

Field Byte length Byte offset Register Description
Status 4 0 This function can return the following Function-Specific Error Code: The NVDIMM-N does not report save operation requirements. For more information, see _DSM Method Output.
Average Power Requirement 2 4 Byte 0: CSAVE_POWER_REQ0 (0, 0x29); Byte 1: CSAVE_POWER_REQ1 (0, 0x2A) The average power (in milliwatts) required for the save operation.
Idle Power Requirement 2 6 Byte 0: CSAVE_IDLE_POWER_REQ0 (0, 0x2B); Byte 1: CSAVE_IDLE_POWER_REQ1 (0, 0x2C) The average power (in milliwatts) the module requires after the save operation completes.
Minimum Voltage Requirement 2 8 Byte 0: CSAVE_MIN_VOLT_REQ0 (0, 0x2D); Byte 1: CSAVE_MIN_VOLT_REQ1 (0, 0x2E) The minimum voltage (in millivolts) the ES has to service during a save operation.
Maximum Voltage Requirement 2 10 Byte 0: CSAVE_MAX_VOLT_REQ0 (0, 0x2F); Byte 1: CSAVE_MAX_VOLT_REQ1 (0, 0x30) The maximum voltage (in millivolts) the ES has to service during a save operation.