>>> On 05.12.18 at 12:29, <paul.durr...@citrix.com> wrote:
> --- a/xen/drivers/passthrough/amd/iommu_map.c
> +++ b/xen/drivers/passthrough/amd/iommu_map.c
> @@ -634,6 +634,56 @@ int amd_iommu_unmap_page(struct domain *d, dfn_t dfn)
> spin_unlock(&hd->arch.mapping_lock);
>
> amd_iommu_flush_pages(d, dfn_x(dfn), 0);
> + return 0;
> +}
> +
> +static unsigned long flush_count(unsigned long dfn, unsigned int page_count,
> + unsigned int order)
> +{
> + unsigned long start = dfn >> order;
> + unsigned long end = (dfn + page_count - 1) >> 1;
Granted in my earlier reply I had a missing opening parenthesis,
but the above is pretty clearly the wrong way of addressing
the resulting build error.
Jan
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