KVM: arm64: Relax CNTHCTL_EL2 handling when FEAT_NV2p1 is present

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With NV2p1, it is no longer necessary to use the split approach
where bits of CNTHCTL_EL2 cannot be accessed via CNTKCTL_EL1,
and we can treat the CNTKCTL_EL1 accessor as if it was "normal".

Key the special casing on FEAT_NV2P1 not being implemented.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://patch.msgid.link/20260730071022.296811-11-maz@kernel.org
Signed-off-by: Oliver Upton <oupton@kernel.org>

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Marc Zyngier 2026-07-30 08:10:03 +01:00 • committed by Oliver Upton

parent 649ba04326

commit 7c614e1698

3 changed files with 22 additions and 7 deletions

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10

arch/arm64/kvm/arch_timer.c

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13

arch/arm64/kvm/hyp/vhe/sysreg-sr.c

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arch/arm64/kvm/sys_regs.c

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