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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