Messages in this thread | | | Date | Tue, 29 Sep 2015 18:08:08 +0200 | From | Joerg Roedel <> | Subject | Re: [PATCH 07/10] iommu/amd: copy old dev tables and do not touch dev tables |
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On Thu, Sep 24, 2015 at 02:37:33PM +0800, Baoquan He wrote: > + if ( !translation_pre_enabled() ) { > + iommu_disable(iommu); > + iommu_init_flags(iommu); > + iommu_set_device_table(iommu); > + iommu_enable_command_buffer(iommu); > + iommu_enable_event_buffer(iommu); > + iommu_set_exclusion_range(iommu); > + iommu_enable(iommu); > + iommu_flush_all_caches(iommu); > + } else { > + copy_dev_tables(); > + copy_command_buffer(); > + copy_event_buffer(); > + }
Hmm, this leaves the old device-table in place and removes flushing the iommu-caches in kdump kernel, right?
Joerg
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