On Fri, Apr 12, 2019 at 12:26:13PM +0800, Lu Baolu wrote:
> drivers/iommu/intel-iommu.c | 6 +-
> 1 file changed, 5 insertions(+), 1 deletion(-)
Applied, thanks.
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By default, for performance consideration, Intel IOMMU
driver won't flush IOTLB immediately after a buffer is
unmapped. It schedules a thread and flushes IOTLB in a
batched mode. This isn't suitable for untrusted device
since it still can access the memory even if it isn't
supposed to do so.
Cc: A