Tagging kernel data using MTE

Derrick McKee derrick.mckee at gmail.com
Fri Sep 11 14:37:42 EDT 2020


I am trying to tag kernel module data using MTE.  However, executing a
ldg instruction after a stg instruction always returns 0 in the color

I have made sure that the ID_AA64PFR1_EL1.MTE bits are set to 0b0010
and the CTLR_EL1.ATA bit is set to 1 when trying to color data.  Is
there something else I need to check and/or set?

Derrick McKee
Phone: (703) 957-9362
Email: derrick.mckee at gmail.com

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