arm64: Use CPACR_EL1 format to set CPTR_EL2 when E2H is set

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When HCR_EL2.E2H is set, the CPTR_EL2 register takes the CPACR_EL1
format. Yes, this is good fun.

Hack the bits of startup code that assume E2H=0 while setting up
CPTR_EL2 to make them grok the CPTR_EL1 format.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20230609162200.2024064-8-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Marc Zyngier 2023-06-09 17:21:50 +01:00 • committed by Oliver Upton

parent 9e7462bbe0

commit 659803aef4

1 changed files with 19 additions and 2 deletions

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arch/arm64/include/asm/el2_setup.h

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