KVM: arm64: Allow PSCI SYSTEM_OFF/RESET to return

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The KVM/arm64 PSCI relay assumes that SYSTEM_OFF and SYSTEM_RESET should
not return, as dictated by the PSCI spec. However, there is firmware out
there which breaks this assumption, leading to a hyp panic. Make KVM
more robust to broken firmware by allowing these to return.

Signed-off-by: David Brazdil <dbrazdil@google.com>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20201229160059.64135-1-dbrazdil@google.com

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David Brazdil 2020-12-29 16:00:59 +00:00 • committed by Marc Zyngier

parent 7ded92e25c

commit 2c91ef3921

1 changed files with 5 additions and 8 deletions

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arch/arm64/kvm/hyp/nvhe/psci-relay.c

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