EFI Bootloader Control Driver, Core EFI Capsule Ready For Linux 4.7
Most notable is the previously talked about EFI bootloader control driver that's ready to be merged for Linux 4.7. This allows passing of information from the reboot command into the bootloader at boot using EFI variables. This could pass the reason to the bootloader why the system had to be rebooted or other information. But there's currently a lack of standardization in this area and bootloaders also need to support reading this information.
The EFI changes for Linux 4.7 also have the core EFI capsule support as needed for the complete UEFI capsule update usage.
Other EFI changes include improving the Secure Boot checks on ARM64, EFI memory attribute table support for ARM/ARM64, EFI GOP frame-buffer support for ARM/ARM64, a EFI capsule char driver, and various other improvements.
Those interested in more information on the Linux 4.7 EFI changes can read the pull request for details.
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