AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-15 23:36:40 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity
6c3a44ed3c
linux_dsm_epyc7002/drivers/iommu
History
Deepa Dinamani 6c3a44ed3c iommu/vt-d: Turn off translations at shutdown 
The intel-iommu driver assumes that the iommu state is
cleaned up at the start of the new kernel.
But, when we try to kexec boot something other than the
Linux kernel, the cleanup cannot be relied upon.
Hence, cleanup before we go down for reboot.

Keeping the cleanup at initialization also, in case BIOS
leaves the IOMMU enabled.

I considered turning off iommu only during kexec reboot, but a clean
shutdown seems always a good idea. But if someone wants to make it
conditional, such as VMM live update, we can do that.  There doesn't
seem to be such a condition at this time.

Tested that before, the info message
'DMAR: Translation was enabled for <iommu> but we are not in kdump mode'
would be reported for each iommu. The message will not appear when the
DMA-remapping is not enabled on entry to the kernel.

Signed-off-by: Deepa Dinamani <deepa.kernel@gmail.com>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-11-11 16:07:13 +01:00
..
amd_iommu_debugfs.c iommu/amd: Add basic debugfs infrastructure for AMD IOMMU 2018-07-06 14:06:30 +02:00
amd_iommu_init.c iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems 2019-08-23 10:26:48 +02:00
amd_iommu_proto.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
amd_iommu_quirks.c iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems 2019-08-23 10:26:48 +02:00
amd_iommu_types.h iommu/amd: Lock dev_data in attach/detach code paths 2019-09-28 14:44:04 +02:00
amd_iommu_v2.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
amd_iommu.c IOMMU Fixes for Linux v5.4-rc1 2019-09-29 10:00:14 -07:00
amd_iommu.h iommu/amd: Override wrong IVRS IOAPIC on Raven Ridge systems 2019-08-23 10:26:48 +02:00
arm-smmu-impl.c iommu/arm-smmu: Make private implementation details static 2019-08-20 10:58:03 +01:00
arm-smmu-v3.c LED updates for 5.4-rc1 2019-09-17 18:40:42 -07:00
arm-smmu.c Devicetree updates for v5.4: 2019-09-19 13:48:37 -07:00
arm-smmu.h Merge branches 'for-joerg/arm-smmu/smmu-v2' and 'for-joerg/arm-smmu/smmu-v3' into for-joerg/arm-smmu/updates 2019-08-23 15:05:45 +01:00
dma-iommu.c dma-mapping updates for 5.4: 2019-09-19 13:27:23 -07:00
dmar.c iommu/vt-d: Turn off translations at shutdown 2019-11-11 16:07:13 +01:00
exynos-iommu.c Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', 'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next 2019-09-11 12:39:19 +02:00
fsl_pamu_domain.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pamu_domain.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pamu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pamu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
hyperv-iommu.c iommu/hyper-v: Add Hyper-V stub IOMMU driver 2019-02-28 11:12:16 +01:00
intel_irq_remapping.c iommu/vt-d: Fix wrong analysis whether devices share the same bus 2019-08-30 15:47:37 +02:00
intel-iommu-debugfs.c iommu/vt-d: Correctly check format of page table in debugfs 2019-08-09 17:29:25 +02:00
intel-iommu.c iommu/vt-d: Turn off translations at shutdown 2019-11-11 16:07:13 +01:00
intel-pasid.c Merge branches 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/omap', 'generic-dma-ops' and 'core' into next 2019-07-04 17:26:48 +02:00
intel-pasid.h iommu/vt-d: Introduce macros useful for dumping DMAR table 2019-05-27 16:16:09 +02:00
intel-svm.c iommu/vt-d: Remove global page flush support 2019-09-03 15:01:27 +02:00
intel-trace.c iommu/vt-d: Add trace events for device dma map/unmap 2019-09-11 12:34:30 +02:00
io-pgtable-arm-v7s.c Merge branch 'arm/smmu' into arm/mediatek 2019-08-30 16:12:10 +02:00
io-pgtable-arm.c iommu/io-pgtable: Pass struct iommu_iotlb_gather to ->tlb_add_page() 2019-07-29 17:22:59 +01:00
io-pgtable.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 234 2019-06-19 17:09:07 +02:00
iommu-debugfs.c iommu: Fix IOMMU debugfs fallout 2019-02-26 11:15:58 +01:00
iommu-sysfs.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
iommu-traces.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iommu.c iommu: Don't use sme_active() in generic code 2019-09-03 15:15:44 +02:00
iova.c iommu/iova: Avoid false sharing on fq_timer_on 2019-08-30 15:21:53 +02:00
ipmmu-vmsa.c Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', 'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next 2019-09-11 12:39:19 +02:00
irq_remapping.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
irq_remapping.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 333 2019-06-05 17:37:06 +02:00
Kconfig ia64 for v5.4 - big change here is removal of support for SGI Altix 2019-09-16 15:32:01 -07:00
Makefile Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', 'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next 2019-09-11 12:39:19 +02:00
msm_iommu_hw-8xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
msm_iommu.c Merge branch 'for-joerg/batched-unmap' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into core 2019-08-20 11:09:43 +02:00
msm_iommu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
mtk_iommu_v1.c Devicetree updates for v5.4: 2019-09-19 13:48:37 -07:00
mtk_iommu.c Merge branch 'arm/smmu' into arm/mediatek 2019-08-30 16:12:10 +02:00
mtk_iommu.h iommu/mediatek: Clean up struct mtk_smi_iommu 2019-08-30 15:57:27 +02:00
of_iommu.c treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 335 2019-06-05 17:37:06 +02:00
omap-iommu-debug.c Merge branches 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/omap', 'generic-dma-ops' and 'core' into next 2019-07-04 17:26:48 +02:00
omap-iommu.c Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', 'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next 2019-09-11 12:39:19 +02:00
omap-iommu.h iommu/omap: add support for late attachment of iommu devices 2019-08-09 17:37:10 +02:00
omap-iopgtable.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 500 2019-06-19 17:09:55 +02:00
qcom_iommu.c Merge branches 'arm/omap', 'arm/exynos', 'arm/smmu', 'arm/mediatek', 'arm/qcom', 'arm/renesas', 'x86/amd', 'x86/vt-d' and 'core' into next 2019-09-11 12:39:19 +02:00
rockchip-iommu.c iommu: Pass struct iommu_iotlb_gather to ->unmap() and ->iotlb_sync() 2019-07-29 17:22:52 +01:00
s390-iommu.c iommu: Pass struct iommu_iotlb_gather to ->unmap() and ->iotlb_sync() 2019-07-29 17:22:52 +01:00
tegra-gart.c iommu: Pass struct iommu_iotlb_gather to ->unmap() and ->iotlb_sync() 2019-07-29 17:22:52 +01:00
tegra-smmu.c iommu: Pass struct iommu_iotlb_gather to ->unmap() and ->iotlb_sync() 2019-07-29 17:22:52 +01:00
virtio-iommu.c Merge branch 'for-joerg/arm-smmu/updates' of git://git.kernel.org/pub/scm/linux/kernel/git/will/linux into arm/smmu 2019-08-23 17:41:59 +02:00