20 Mar
2023
20 Mar
'23
1:49 p.m.
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