A new platform feature being worked on by Arm engineers for the Linux kernel is Live Firmware Activation to allow for updated firmware components to be deployed without requiring a system reboot.
As Arm continues to make progress in the data center and hyperscaler space, Arm is rolling out Live Firmware Activation "LFA" for deploying firmware updates whether it be security fixes or functional issues without the need of any system downtime due to a reboot.
Arm engineer Andre Przywara describes the LFA feature as:
"This series implements the kernel side support of