Messages in this thread | | | Subject | Re: [PATCH v2 6/6] powerpc/pseries/iommu: Avoid errors when DDW starts at 0x00 | From | Leonardo Bras <> | Date | Fri, 26 Jun 2020 14:46:46 -0300 |
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On Wed, 2020-06-24 at 03:24 -0300, Leonardo Bras wrote: > As of today, enable_ddw() will return a non-null DMA address if the > created DDW maps the whole partition. If the address is valid, > iommu_bypass_supported_pSeriesLP() will consider iommu bypass enabled. > > This can cause some trouble if the DDW happens to start at 0x00. > > Instead if checking if the address is non-null, check directly if > the DDW maps the whole partition, so it can bypass iommu. > > Signed-off-by: Leonardo Bras <leobras.c@gmail.com>
This patch has a bug in it. I will rework it soon. Please keep reviewing patches 1-5.
Best regards, Leonardo
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