Re: [PATCH] iommu: intel: Flush the IOTLB to get rid of the initial kdump mappings

2017-05-17 Thread Joerg Roedel
On Fri, May 05, 2017 at 11:39:59AM -0700, KarimAllah Ahmed wrote: > Ever since commit 091d42e43d ("iommu/vt-d: Copy translation tables from > old kernel") Please put the commit-information into a Fixes: tag next time. I'll added a Fixes tag to the commit this time. > the kdump kernel copies the

Re: [PATCH] iommu: intel: Flush the IOTLB to get rid of the initial kdump mappings

2017-05-05 Thread David Woodhouse
On Fri, 2017-05-05 at 11:39 -0700, KarimAllah Ahmed wrote: > Ever since commit 091d42e43d ("iommu/vt-d: Copy translation tables from > old kernel") the kdump kernel copies the IOMMU context tables from the > previous kernel. Each device mappings will be destroyed once the driver > for the

[PATCH] iommu: intel: Flush the IOTLB to get rid of the initial kdump mappings

2017-05-05 Thread KarimAllah Ahmed via iommu
Ever since commit 091d42e43d ("iommu/vt-d: Copy translation tables from old kernel") the kdump kernel copies the IOMMU context tables from the previous kernel. Each device mappings will be destroyed once the driver for the respective device takes over. This unfortunately breaks the workflow of