KVM: arm64: nv: Advertise the lack of AArch32 EL0 support

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Although we never supported 32bit anywhere in NV, we fail to
advertise so for EL0, probably owing to the relative lack of
hardware supporting both NV2 and 32bit EL0.

Add some sanitising to ID_AA64PFR0_EL1.EL0, and reaffirm that
"in 64bit-only we trust".

Reported-by: Oliver Upton <oliver.upton@linux.dev>
Acked-by: Oliver Upton <oliver.upton@linux.dev>
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Marc Zyngier 2024-12-21 10:06:17 +00:00

parent 78d4f34e21

commit e891432cf7

1 changed files with 4 additions and 2 deletions

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arch/arm64/kvm/nested.c

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