4Th Generation Devices - Nvidia MSTFLINT Manual

4th Generation Devices

To disable/enable access to the hardware:
1. Set the key:
# mstflint -d
Setting the HW Key - OK
Restoring signature - OK

A driver restart is required to activate the new key.
2. Access the HW while HW access is disabled:
# mstflint -d
E- Cannot open 41:00.0: HW access is disabled on the device.
E- Run "mstflint -d 41:00.0 hw_access enable"
3. Enable HW access:
# mstflint -d
Enter Key: ********
4. Disable HW access:
# mstflint -d

WARNING:
1. Once a hardware access key is set, the hardware can be accessed only after the
correct key is provided.
2. If a key is lost, there is no way to recover it using the tool. The only way to recover
from a lost key is to:
• Connect the flash-not-present jumper on the card
• Boot in "flash recovery" mode
• Re-burn FW
• Re-set the HW access key
5th Generation Devices
Secure Host can be enabled on 5th generation devices in one of the following manners:
1. Set the key:
# mstflint -d
-I- Secure Host was enabled successfully on the device.
2. Disable HW access:
# mstflint -d
-I- Secure Host was enabled successfully on the device.
41:00.0 set_key 22062011
41:00.00 q
41:00.0 hw_access enable
41:00.0 hw_access disable
41:00.0 set_key 18022018
41:00.0 hw_access disable
in order to enable HW access.
18022018
65