KVM: arm64: nv: Handle ERETA[AB] instructions

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Now that we have some emulation in place for ERETA[AB], we can
plug it into the exception handling machinery.

As for a bare ERET, an "easy" ERETAx instruction is processed as
a fixup, while something that requires a translation regime
transition or an exception delivery is left to the slow path.

Reviewed-by: Joey Gouly <joey.gouly@arm.com>
Reviewed-by: Oliver Upton <oliver.upton@linux.dev>
Link: https://lore.kernel.org/r/20240419102935.1935571-14-maz@kernel.org
Signed-off-by: Marc Zyngier <maz@kernel.org>

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Marc Zyngier 2024-04-19 11:29:33 +01:00

parent 6ccc971ee2

commit 213b3d1ea1

3 changed files with 33 additions and 5 deletions

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22

arch/arm64/kvm/emulate-nested.c

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3

arch/arm64/kvm/handle_exit.c

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13

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

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