Messages in this thread | | | Date | Mon, 20 Mar 2023 10:49:51 -0300 | From | Jason Gunthorpe <> | Subject | Re: [PATCH v2 1/5] iommufd: Add nesting related data structures for Intel VT-d |
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On Thu, Mar 09, 2023 at 12:22:03AM -0800, Yi Liu wrote:
> +struct iommu_hwpt_invalidate_intel_vtd { > + __u8 granularity; > + __u8 padding[7]; > + __u32 flags; > + __u32 __reserved; > + __u64 addr; > + __u64 granule_size; > + __u64 nb_granules; > +};
Is there a reason this has such a weird layout? Put the granularity in the __reserved slot?
Consider the discussion on ARM if you prefer to use the native HW command structure instead?
Jason
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