KVM: arm64: Make TCR2_EL1 save/restore dependent on the VM features

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As for other registers, save/restore of TCR2_EL1 should be gated
on the feature being actually present.

In the case of a nVHE hypervisor, it is perfectly fine to leave
the host value in the register, as HCRX_EL2.TCREn==0 imposes that
TCR2_EL1 is treated as 0.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20240625130042.259175-4-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>

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Marc Zyngier 2024-06-25 14:00:39 +01:00 • committed by Oliver Upton

parent a3ee9ce88b

commit 1b04fd4027

1 changed files with 13 additions and 2 deletions

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arch/arm64/kvm/hyp/include/hyp/sysreg-sr.h

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