From 9494ea90a56d013f4257686c8daf49203cd900c0 Mon Sep 17 00:00:00 2001 From: Baoquan He Date: Wed, 9 Aug 2017 16:33:35 +0800 Subject: Revert "iommu/amd: Suppress IO_PAGE_FAULTs in kdump kernel" This reverts commit 54bd63570484167cb13edf81e31fff107b879981. We still need the IO_PAGE_FAULT message to warn error after the issue of on-flight dma in kdump kernel is fixed. Signed-off-by: Baoquan He Signed-off-by: Joerg Roedel --- drivers/iommu/amd_iommu_init.c | 9 --------- 1 file changed, 9 deletions(-) (limited to 'drivers/iommu/amd_iommu_init.c') diff --git a/drivers/iommu/amd_iommu_init.c b/drivers/iommu/amd_iommu_init.c index 277838dbc3a6..7044510654fe 100644 --- a/drivers/iommu/amd_iommu_init.c +++ b/drivers/iommu/amd_iommu_init.c @@ -29,7 +29,6 @@ #include #include #include -#include #include #include #include @@ -1942,14 +1941,6 @@ static void init_device_table_dma(void) for (devid = 0; devid <= amd_iommu_last_bdf; ++devid) { set_dev_entry_bit(devid, DEV_ENTRY_VALID); set_dev_entry_bit(devid, DEV_ENTRY_TRANSLATION); - /* - * In kdump kernels in-flight DMA from the old kernel might - * cause IO_PAGE_FAULTs. There are no reports that a kdump - * actually failed because of that, so just disable fault - * reporting in the hardware to get rid of the messages - */ - if (is_kdump_kernel()) - set_dev_entry_bit(devid, DEV_ENTRY_NO_PAGE_FAULT); } } -- cgit v1.2.3