Re: [PATCH v3 07/10] KVM: arm/arm64: vgic-its: Invalidate MSI-LPI translation cache on vgic teardown

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Hi Marc,

On 7/25/19 5:35 PM, Marc Zyngier wrote:
> From: Marc Zyngier <marc.zyngier@xxxxxxx>
> 
> In order to avoid leaking vgic_irq structures on teardown, we need to
> drop all references to LPIs before deallocating the cache itself.
> 
> This is done by invalidating the cache on vgic teardown.
> 
> Signed-off-by: Marc Zyngier <marc.zyngier@xxxxxxx>
Reviewed-by: Eric Auger <eric.auger@xxxxxxxxxx>

Eric
> ---
>  virt/kvm/arm/vgic/vgic-its.c | 2 ++
>  1 file changed, 2 insertions(+)
> 
> diff --git a/virt/kvm/arm/vgic/vgic-its.c b/virt/kvm/arm/vgic/vgic-its.c
> index 05406bd92ce9..d3e90a9d0a7a 100644
> --- a/virt/kvm/arm/vgic/vgic-its.c
> +++ b/virt/kvm/arm/vgic/vgic-its.c
> @@ -1731,6 +1731,8 @@ void vgic_lpi_translation_cache_destroy(struct kvm *kvm)
>  	struct vgic_dist *dist = &kvm->arch.vgic;
>  	struct vgic_translation_cache_entry *cte, *tmp;
>  
> +	vgic_its_invalidate_cache(kvm);
> +
>  	list_for_each_entry_safe(cte, tmp,
>  				 &dist->lpi_translation_cache, entry) {
>  		list_del(&cte->entry);
> 



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