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KVM: arm64: Mark HCR.EL2.E2H RES0 when ID_AA64MMFR1_EL1.VH is zero
authorMarc Zyngier <maz@kernel.org>
Thu, 20 Feb 2025 13:48:56 +0000 (13:48 +0000)
committerOliver Upton <oliver.upton@linux.dev>
Mon, 24 Feb 2025 19:06:55 +0000 (11:06 -0800)
commitd9f943f76506f60b9b74ce04caead6ce81b12fe0
tree0c1adfbc3c7bb40ce8379f25c6229bee40aaaf58tree
parent9d6745572899599966fb76a868acca1cae9518afcommit | diff
KVM: arm64: Mark HCR.EL2.E2H RES0 when ID_AA64MMFR1_EL1.VH is zero

Enforce HCR_EL2.E2H being RES0 when VHE is disabled, so that we can
actually rely on that bit never being flipped behind our back.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Link: https://lore.kernel.org/r/20250220134907.554085-4-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
arch/arm64/kvm/nested.c diff | blob | history
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