[PATCH] KVM: arm64: timers: Use CNTHCTL_EL2 when setting non-CNTKCTL_EL1 bits
Oliver Upton
oliver.upton at linux.dev
Tue Jul 11 13:00:46 PDT 2023
On Tue, 27 Jun 2023 15:05:57 +0100, Marc Zyngier wrote:
> It recently appeared that, whien running VHE, there is a notable
> difference between using CNTKCTL_EL1 and CNTHCTL_EL2, despite what
> the architecture documents:
>
> - When accessed from EL2, bits [19:18] and [16:10] same bits have
> the same assignment as CNTHCTL_EL2
> - When accessed from EL1, bits [19:18] and [16:10] are RES0
>
> [...]
Applied to kvmarm/fixes, thanks!
[1/1] KVM: arm64: timers: Use CNTHCTL_EL2 when setting non-CNTKCTL_EL1 bits
https://git.kernel.org/kvmarm/kvmarm/c/fe769e6c1f80
--
Best,
Oliver
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