Messages in this thread | | | Date | Fri, 28 Jul 2017 13:14:39 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH v8 10/13] iommu/amd: Allocate memory below 4G for dev table if translation pre-enabled |
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On Fri, Jul 28, 2017 at 05:06:19PM +0800, Baoquan He wrote: > Do you mean the allocation of amd_iommu_dev_table in > early_amd_iommu_init() also need be addressed for 1st kernel? Seems we > don't make sure that for 1st kernel, like adding GFP_DMA32 flag when > allocate amd_iommu_dev_table in amd_iommu_dev_table > early_amd_iommu_init().
Yes, exactly, the first device table also needs to be allocated with GFP_DMA32 so that it ends up below 4GB.
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