KVM: arm64: Make RAS registers UNDEF when RAS isn't advertised

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We currently always expose FEAT_RAS when available on the host.

As we are about to make this feature selectable from userspace,
check for it being present before emulating register accesses
as RAZ/WI, and inject an UNDEF otherwise.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20250721101955.535159-4-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Marc Zyngier 2025-07-21 11:19:51 +01:00 • committed by Oliver Upton

parent 303084ad12

commit d9c5c23201

1 changed files with 25 additions and 8 deletions

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arch/arm64/kvm/sys_regs.c

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