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| author | Baoquan He <bhe@redhat.com> | 2017-08-09 10:33:35 +0200 |
|---|---|---|
| committer | Joerg Roedel <jroedel@suse.de> | 2017-08-15 18:14:38 +0200 |
| commit | 9494ea90a56d013f4257686c8daf49203cd900c0 (patch) | |
| tree | da251c9a3afd3038cf584fd2050e185b8242e404 /drivers/iommu/amd_iommu_init.c | |
| parent | iommu/amd: Add several helper functions (diff) | |
| download | linux-9494ea90a56d013f4257686c8daf49203cd900c0.tar.xz linux-9494ea90a56d013f4257686c8daf49203cd900c0.zip | |
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 <bhe@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Diffstat (limited to 'drivers/iommu/amd_iommu_init.c')
| -rw-r--r-- | drivers/iommu/amd_iommu_init.c | 9 |
1 files changed, 0 insertions, 9 deletions
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 <linux/export.h> #include <linux/iommu.h> #include <linux/kmemleak.h> -#include <linux/crash_dump.h> #include <asm/pci-direct.h> #include <asm/iommu.h> #include <asm/gart.h> @@ -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); } } |