On Tue, 23 Mar 2021 18:25:45 -0400
Daniel Jordan wrote:
> Hi Alex,
>
> Alex Williamson writes:
> > I've found a bug in this patch that we need to fix. The diff is a
> > little difficult to follow,
>
> It was an awful diff, I remember...
>
> > so I'll discuss it in the resulting function
Hi Alex,
Alex Williamson writes:
> I've found a bug in this patch that we need to fix. The diff is a
> little difficult to follow,
It was an awful diff, I remember...
> so I'll discuss it in the resulting function below...
>
> (1) Imagine the user has passed a vaddr range that alternates
Hi Daniel,
I've found a bug in this patch that we need to fix. The diff is a
little difficult to follow, so I'll discuss it in the resulting
function below...
(1) Imagine the user has passed a vaddr range that alternates pfnmaps
and pinned memory per page.
static long
Pinning one 4K page at a time is inefficient, so do it in batches of 512
instead. This is just an optimization with no functional change
intended, and in particular the driver still calls iommu_map() with the
largest physically contiguous range possible.
Add two fields in vfio_batch to remember
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