Re: [PATCH v6 3/4] virtio-iommu: Fix the domain_range end

[Jean-Philippe Brucker <jean-philippe@linaro.org>]

On Sat, Nov 27, 2021 at 08:29:09AM +0100, Eric Auger wrote:
> in old times the domain range was defined by a domain_bits le32.
> This was then converted into a domain_range struct. During the
> upgrade the original value of '32' (bits) has been kept while
> the end field now is the max value of the domain id (UINT32_MAX).
> Fix that and also use UINT64_MAX for the input_range.end.
> 
> Signed-off-by: Eric Auger <eric.auger@redhat.com>
> Reported-by: Jean-Philippe Brucker <jean-philippe@linaro.org>

Reviewed-by: Jean-Philippe Brucker <jean-philippe@linaro.org>

> ---
>  hw/virtio/virtio-iommu.c | 4 ++--
>  1 file changed, 2 insertions(+), 2 deletions(-)
> 
> diff --git a/hw/virtio/virtio-iommu.c b/hw/virtio/virtio-iommu.c
> index 30ee09187b8..aa9c16a17b1 100644
> --- a/hw/virtio/virtio-iommu.c
> +++ b/hw/virtio/virtio-iommu.c
> @@ -978,8 +978,8 @@ static void virtio_iommu_device_realize(DeviceState *dev, Error **errp)
>      s->event_vq = virtio_add_queue(vdev, VIOMMU_DEFAULT_QUEUE_SIZE, NULL);
>  
>      s->config.page_size_mask = TARGET_PAGE_MASK;
> -    s->config.input_range.end = -1UL;
> -    s->config.domain_range.end = 32;
> +    s->config.input_range.end = UINT64_MAX;
> +    s->config.domain_range.end = UINT32_MAX;
>      s->config.probe_size = VIOMMU_PROBE_SIZE;
>  
>      virtio_add_feature(&s->features, VIRTIO_RING_F_EVENT_IDX);
> -- 
> 2.26.3
>