arm64: Allow EL1 physical timer access when running VHE

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To initialise the timer access from EL2 when HCR_EL2.E2H is set,
we must make use the CNTHCTL_EL2 formap used is appropriate.

This amounts to shifting the timer/counter enable bits by 10
to the left.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Catalin Marinas <catalin.marinas@arm.com>
Link: https://lore.kernel.org/r/20230609162200.2024064-7-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Marc Zyngier 2023-06-09 17:21:49 +01:00 • committed by Oliver Upton

parent 7a26e1f51e

commit 9e7462bbe0

2 changed files with 14 additions and 0 deletions

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5

arch/arm64/include/asm/el2_setup.h

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9

arch/arm64/kvm/hyp/nvhe/hyp-init.S

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