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arm64: Add ISS_MSR_REG for ESR_ELx.ISS values

Description

arm64: Add ISS_MSR_REG for ESR_ELx.ISS values

Add a macro to get the ESR_ELx ISS value when we trap accessing a
special register.

(cherry picked from commit 09ac9cf8971a0709bb8d5a3a703cd3dbff882b6f)

Details

Provenance
andrewAuthored on Feb 21 2024, 6:10 PM
Parents
rG39ae01d39b55: arm64: Add more spsr_el1 register values
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