mirror of
https://github.com/edk2-porting/linux-next.git
synced 2024-12-19 18:53:52 +08:00
17 lines
612 B
Plaintext
17 lines
612 B
Plaintext
|
|
efivarfs - a (U)EFI variable filesystem
|
|
|
|
The efivarfs filesystem was created to address the shortcomings of
|
|
using entries in sysfs to maintain EFI variables. The old sysfs EFI
|
|
variables code only supported variables of up to 1024 bytes. This
|
|
limitation existed in version 0.99 of the EFI specification, but was
|
|
removed before any full releases. Since variables can now be larger
|
|
than a single page, sysfs isn't the best interface for this.
|
|
|
|
Variables can be created, deleted and modified with the efivarfs
|
|
filesystem.
|
|
|
|
efivarfs is typically mounted like this,
|
|
|
|
mount -t efivarfs none /sys/firmware/efi/efivars
|