Hi, On 11/9/21 00:25, Mark Pearson wrote: > Newer Lenovo BIOS's have an opcode GUID support interface which provides > - improved password setting control > - ability to set System, hard drive and NVMe passwords > > Add the support for these new passwords, and the ability to select > user/master mode and the drive index. > > Signed-off-by: Mark Pearson <markpearson@xxxxxxxxxx> > --- > .../ABI/testing/sysfs-class-firmware-attributes | 17 +++++++++++++++++ > 1 file changed, 17 insertions(+) > > diff --git a/Documentation/ABI/testing/sysfs-class-firmware-attributes b/Documentation/ABI/testing/sysfs-class-firmware-attributes > index 3348bf80a37c..6af4c5cf3d47 100644 > --- a/Documentation/ABI/testing/sysfs-class-firmware-attributes > +++ b/Documentation/ABI/testing/sysfs-class-firmware-attributes > @@ -161,6 +161,12 @@ Description: > power-on: > Representing a password required to use > the system > + system-mgmt: > + Representing System Management password What is the difference between the system-mgmt password and the bios-admin one ? > + HDD: > + Representing HDD password > + NVMe: > + Representing NVMe password > > mechanism: > The means of authentication. This attribute is mandatory. > @@ -185,6 +191,17 @@ Description: > A write only value that when used in tandem with > current_password will reset a system or admin password. > > + level: > + Used with HDD and NVMe authentication to set 'user' or 'master' > + privilege level > + This attribute defaults to 'user' level What is the difference between user and master levels ? > + > + index: > + Used with HDD and NVME authentication to set the drive index > + that is being referenced (e.g hdd0, hdd1 etc) > + This attribute defaults to device 0. > + > + > Note, password management is session specific. If Admin password is set, > same password must be written into current_password file (required for > password-validation) and must be cleared once the session is over. > Also maybe all of this needs to be moved to the Lenovo specific section for now ? If we then get other firmware APIs to set HDD / NVMe passwords we can try to re-use this and move it to the generic section (assuming we can make things fit ...) Regards, Hans
