KVM: arm64: nv: Add additional trap setup for CPTR_EL2

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We need to teach KVM a couple of new tricks. CPTR_EL2 and its
VHE accessor CPACR_EL1 need to be handled specially:

- CPACR_EL1 is trapped on VHE so that we can track the TCPAC
  and TTA bits

- CPTR_EL2.{TCPAC,E0POE} are propagated from L1 to L2

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240620164653.1130714-15-oliver.upton@linux.dev
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Marc Zyngier 2024-06-20 16:46:51 +00:00 • committed by Oliver Upton

parent e19d533126

commit cd931bd609

1 changed files with 18 additions and 1 deletions

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arch/arm64/kvm/hyp/vhe/switch.c

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