Re: [PATCH RFCv2 09/13] iommufd: Add IOMMU_OPTION_SW_MSI_START/SIZE ioctls

[Jason Gunthorpe]

On Thu, Feb 06, 2025 at 08:26:05PM -0800, Nicolin Chen wrote:
> Yea, I found iopt_reserve_iova() is actually missed entirely...
> 
> While fixing this, I see a way to turn the OPTIONs back to per-
> idev, if you still prefer them to be per-idev(?). Then, we can
> check a given input in the set_option() against the device's
> reserved region list from the driver, prior to device attaching
> to any HWPT.

I didn't have a strong opinion, if the idev works without complexity
then I'd stick with that on the basis of narrower scope is usually
better.

Jason