KVM: arm64: vgic-v5: Limit support to 64 PPIs

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Although we have some code supporting 128 PPIs, the only supported
configuration is 64 PPIs. There is no way to test the 128 PPI code,
so it is bound to bitrot very quickly.

Given that KVM/arm64's goal has always been to stick to non-IMPDEF
behaviours, drop the 128 PPI support. Someone motivated enough and
with very strong arguments can always bring it back -- it's all in
the git history.

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://lore.kernel.org/r/20260520091949.542365-10-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Marc Zyngier 2026-05-20 10:19:40 +01:00

parent 8f5dd53590

commit 35a4f8d151

3 changed files with 26 additions and 82 deletions

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78

arch/arm64/kvm/hyp/vgic-v5-sr.c

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17

arch/arm64/kvm/sys_regs.c

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9

arch/arm64/kvm/vgic/vgic-kvm-device.c

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