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(parent: 7a26e1f) | patch
arm64: Allow EL1 physical timer access when running VHE
authorMarc Zyngier <maz@kernel.org>
Fri, 9 Jun 2023 16:21:49 +0000 (17:21 +0100)
committerOliver Upton <oliver.upton@linux.dev>
Mon, 12 Jun 2023 23:17:23 +0000 (23:17 +0000)
commit9e7462bbe00d8431694720804a50b8f48d8ed0b0
tree8cf5a26721d1e5ee3bbaa9d7ede909da1c3effd8tree | snapshot
parent7a26e1f51e3c26a1b4a1f087e2056f1554365682commit | diff
arm64: Allow EL1 physical timer access when running VHE

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>
arch/arm64/include/asm/el2_setup.h diff | blob | history
arch/arm64/kvm/hyp/nvhe/hyp-init.S diff | blob | history
Domain: System / Kernel;