Hi David,
On Tue, Oct 20, 2015 at 04:52:59PM +0100, David Woodhouse wrote:
> void flush_tlb_kernel_range(unsigned long start, unsigned long end)
> {
> + intel_iommu_flush_kernel_pasid(start, end);
A more generic naming would be good, and probably expose it through a
function in the IOMMU-API.
> +void intel_iommu_flush_kernel_pasid(unsigned long start, unsigned long end)
> +{
> + struct dmar_drhd_unit *drhd;
> + struct intel_iommu *iommu;
> + unsigned long pages;
And I think, as a performance optimiztion, we should bail out early here
if the pasid has no users.
Joerg
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