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The LORN_EL1 register holds the number of the LORegion described in the current LORegion descriptor selected by LORC_EL1.DS.
LORN_EL1 is a 64-bit register and is part of the Virtual memory control registers functional group.
The LORN_EL1 register is only applicable to the AArch64 state and is not accessible at any Exception level in AArch32.
RW fields in this register reset to architecturally UNKNOWN values.
Bit fields and details that are not provided in this description are architecturally defined. See the Arm® Architecture Reference Manual Armv8, for Armv8-A architecture profile.