Commit 6bef365e authored by Marc Zyngier's avatar Marc Zyngier Committed by Oliver Upton
Browse files

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



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: default avatarMarc Zyngier <maz@kernel.org>
Link: https://lore.kernel.org/r/20231207151201.3028710-5-maz@kernel.org


Signed-off-by: default avatarOliver Upton <oliver.upton@linux.dev>
parent 02e3858f

arch/arm64/kvm/vgic/vgic-mmio-v3.c

+2 −0
Original line number Diff line number Diff line
@@ -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)