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KVM: arm64: vgic: Ensure that slots_lock is held in vgic_register_all_redist_iodevs()

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Although we implicitly depend on slots_lock being held when registering
IO devices with the IO bus infrastructure, we don't enforce this
requirement. Make it explicit.

Signed-off-by: Marc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231207151201.3028710-5-maz@kernel.org
Signed-off-by: Oliver Upton <oliver.upton@linux.dev>
This commit is contained in:
Marc Zyngier 2023-12-07 15:12:00 +00:00 committed by Oliver Upton
parent 02e3858f08
commit 6bef365e31
1 changed files with 2 additions and 0 deletions
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arch/arm64/kvm/vgic/vgic-mmio-v3.c
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@ -833,6 +833,8 @@ static int vgic_register_all_redist_iodevs(struct kvm *kvm)
unsigned long c;
int ret = 0;
lockdep_assert_held(&kvm->slots_lock);
kvm_for_each_vcpu(c, vcpu, kvm) {
ret = vgic_register_redist_iodev(vcpu);
if (ret)