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linux-next/drivers/iommu
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Will Deacon b63b3439b8 iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump kernel 
If we find that the SMMU is enabled during probe, we reset it by
re-initialising its registers and either enabling translation or placing
it into bypass based on the disable_bypass commandline option.

In the case of a kdump kernel, the SMMU won't have been shutdown cleanly
by the previous kernel and there may be concurrent DMA through the SMMU.
Rather than reset the SMMU to bypass, which would likely lead to rampant
data corruption, we can instead configure the SMMU to abort all incoming
transactions when we find that it is enabled from within a kdump kernel.

Reported-by: Sameer Goel <sgoel@codeaurora.org>
Signed-off-by: Will Deacon <will.deacon@arm.com>
2018-07-27 11:12:37 +01:00
..
amd_iommu_init.c iommu/amd: Use raw locks on atomic context paths 2018-02-13 14:18:06 +01:00
amd_iommu_proto.h IOMMU Updates for Linux v4.14 2017-09-09 15:03:24 -07:00
amd_iommu_types.h iommu/amd: Update logging information for new event type 2018-05-03 16:33:18 +02:00
amd_iommu_v2.c pci-v4.16-changes 2018-02-06 09:59:40 -08:00
amd_iommu.c Revert "iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}()" 2018-06-11 12:22:12 -07:00
arm-smmu-regs.h iommu/arm-smmu: Split out register defines 2017-08-15 17:34:48 +02:00
arm-smmu-v3.c iommu/arm-smmu-v3: Abort all transactions if SMMU is enabled in kdump kernel 2018-07-27 11:12:37 +01:00
arm-smmu.c iommu/arm-smmu: Error out only if not enough context interrupts 2018-07-26 11:34:59 +01:00
dma-iommu.c iommu/dma: Move PCI window region reservation back into dma specific path. 2018-05-03 16:32:10 +02:00
dmar.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
exynos-iommu.c IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
fsl_pamu_domain.c Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
fsl_pamu_domain.h iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +02:00
fsl_pamu.c Merge branches 'arm/exynos', 'arm/renesas', 'arm/rockchip', 'arm/omap', 'arm/mediatek', 'arm/tegra', 'arm/qcom', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd', 's390' and 'core' into next 2017-09-01 11:31:42 +02:00
fsl_pamu.h iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +02:00
intel_irq_remapping.c irq_remapping: Use apic_ack_irq() 2018-06-06 15:18:20 +02:00
intel-iommu.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
intel-svm.c iommu/vt-d: Remove unnecessary parentheses 2018-05-15 16:34:53 +02:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm-v7s: Abort allocation when table address overflows the PTE 2018-07-26 11:34:58 +01:00
io-pgtable-arm.c iommu/io-pgtable-arm: Fix pgtable allocation in selftest 2018-07-26 11:34:58 +01:00
io-pgtable.c iommu/io-pgtable: Fix a brace coding style issue. 2016-04-05 15:34:29 +02:00
io-pgtable.h iommu/io-pgtable: Use size_t return type for all foo_unmap 2018-02-13 19:31:32 +01:00
iommu-sysfs.c iommu: Fix wrong freeing of iommu_device->dev 2017-08-15 13:58:48 +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: Clean up the comments for iommu_group_alloc 2018-05-15 16:34:59 +02:00
iova.c treewide: setup_timer() -> timer_setup() 2017-11-21 15:57:07 -08:00
ipmmu-vmsa.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
irq_remapping.c irq_remapping: Use apic_ack_irq() 2018-06-06 15:18:20 +02:00
irq_remapping.h irq_remapping: Use apic_ack_irq() 2018-06-06 15:18:20 +02:00
Kconfig Revert "iommu/amd_iommu: Use CONFIG_DMA_DIRECT_OPS=y and dma_direct_{alloc,free}()" 2018-06-11 12:22:12 -07:00
Makefile License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
msm_iommu.h iommu/msm: Make use of iommu_device_register interface 2017-02-10 13:44:57 +01:00
mtk_iommu_v1.c IOMMU Updates for Linux v4.17 2018-04-11 18:50:41 -07:00
mtk_iommu.c iommu/mediatek: Fix protect memory setting 2018-03-21 06:13:57 -05:00
mtk_iommu.h iommu/mediatek: Fix protect memory setting 2018-03-21 06:13:57 -05:00
of_iommu.c iommu: Clean up of_iommu_init_fn 2018-01-17 15:25:50 +01:00
omap-iommu-debug.c iommu/omap: Fix debugfs_create_*() usage 2018-01-17 14:23:33 +01:00
omap-iommu.c treewide: kzalloc() -> kcalloc() 2018-06-12 16:19:22 -07:00
omap-iommu.h iommu/omap: Add support to program multiple iommus 2017-09-19 11:32:05 +02:00
omap-iopgtable.h iommu/omap: Use BIT(x) macros in omap-iopgtable.h 2015-08-03 16:04:42 +02:00
qcom_iommu.c iommu/qcom: Simplify getting .drvdata 2018-05-03 15:18:26 +02:00
rockchip-iommu.c treewide: devm_kzalloc() -> devm_kcalloc() 2018-06-12 16:19:22 -07:00
s390-iommu.c License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
tegra-gart.c treewide: Use array_size() in vmalloc() 2018-06-12 16:19:22 -07:00
tegra-smmu.c iommu/tegra-smmu: Fix return value check in tegra_smmu_group_get() 2017-12-20 18:32:08 +01:00