KVM: arm64: Propagate errors from __pkvm_prot_finalize hypercall

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If the __pkvm_prot_finalize hypercall returns an error, we WARN but fail
to propagate the failure code back to kvm_arch_init().

Pass a pointer to a zero-initialised return variable so that failure
to finalise the pKVM protections on a host CPU can be reported back to
KVM.

Cc: Marc Zyngier <maz@kernel.org>
Cc: Quentin Perret <qperret@google.com>
Signed-off-by: Will Deacon <will@kernel.org>
Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20211008135839.1193-5-will@kernel.org

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Will Deacon 2021-10-08 14:58:37 +01:00 • committed by Marc Zyngier

parent 8579a185ba

commit 2f2e1a5069

1 changed files with 19 additions and 11 deletions

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arch/arm64/kvm/arm.c

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