Re: [PATCH v5 5/7] iommu: Add virtio-iommu driver

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On 23/11/2018 21:48, Michael S. Tsirkin wrote:
>> +struct virtio_iommu_config {
>> +	/* Supported page sizes */
>> +	__u64					page_size_mask;
>> +	/* Supported IOVA range */
>> +	struct virtio_iommu_range		input_range;
>> +	/* Max domain ID size */
>> +	__u8					domain_bits;
>> +	__u8					padding[3];
> 
> Not enough padding here it seems. Structure is 8 byte
> aligned on 64 bit systems.

The next field (probe_size) is 4 bytes, so the alignment ends up fine.
That field is introduced in patch 6, maybe I should move it here?

Thanks,
Jean



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