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![]() Reading back a RES0 bit does not necessarily mean it will be read as 0. The Arm ARM explicitly warns against doing this. The PMU initialisation code tries to set such bits to 1 (in MDCR_EL3) regardless of whether they are in use or are RES0, checking their value could be wrong and PMCR_EL0 might not end up being saved. Save PMCR_EL0 unconditionally to prevent this. Remove the security state change as the outgoing state is not relevant to what the root world context should look like. Signed-off-by: Boyan Karatotev <boyan.karatotev@arm.com> Change-Id: Id43667d37b0e2da3ded0beaf23fa0d4f9013f470 |
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bl31_entrypoint.S | ||
crash_reporting.S | ||
ea_delegate.S | ||
runtime_exceptions.S |