linux/drivers/iommu
Jacob Pan 0c830e6b32 iommu: Introduce device fault report API
Traditionally, device specific faults are detected and handled within
their own device drivers. When IOMMU is enabled, faults such as DMA
related transactions are detected by IOMMU. There is no generic
reporting mechanism to report faults back to the in-kernel device
driver or the guest OS in case of assigned devices.

This patch introduces a registration API for device specific fault
handlers. This differs from the existing iommu_set_fault_handler/
report_iommu_fault infrastructures in several ways:
- it allows to report more sophisticated fault events (both
  unrecoverable faults and page request faults) due to the nature
  of the iommu_fault struct
- it is device specific and not domain specific.

The current iommu_report_device_fault() implementation only handles
the "shoot and forget" unrecoverable fault case. Handling of page
request faults or stalled faults will come later.

Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: Jean-Philippe Brucker <jean-philippe.brucker@arm.com>
Signed-off-by: Eric Auger <eric.auger@redhat.com>
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2019-06-12 10:19:06 +02:00
..
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 Merge branches 'arm/tegra', 'arm/mediatek', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2019-05-07 09:40:12 +02:00
amd_iommu_proto.h iommu/amd: Add basic debugfs infrastructure for AMD IOMMU 2018-07-06 14:06:30 +02:00
amd_iommu_types.h iommu/amd: Remove amd_iommu_pd_list 2019-04-26 15:17:20 +02:00
amd_iommu_v2.c iommu/amd: Remove clear_flush_young notifier 2019-01-30 17:30:46 +01:00
amd_iommu.c pci-v5.2-changes 2019-05-14 10:30:10 -07:00
arm-smmu-regs.h iommu/arm-smmu: Log CBFRSYNRA register on context fault 2019-04-23 12:23:16 +01:00
arm-smmu-v3.c iommu/arm-smmu-v3: Don't disable SMMU in kdump kernel 2019-04-23 12:23:15 +01:00
arm-smmu.c iommu/arm-smmu: Log CBFRSYNRA register on context fault 2019-04-23 12:23:16 +01:00
dma-iommu.c Merge branch 'irq-urgent-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2019-05-19 10:58:45 -07:00
dmar.c iommu/vt-d: Use struct_size() helper 2019-04-26 16:43:21 +02:00
exynos-iommu.c IOMMU: Make dwo drivers use stateless device links 2019-02-01 10:04:08 +01:00
fsl_pamu_domain.c Merge branches 'arm/renesas', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2018-10-10 18:09:37 +02:00
fsl_pamu_domain.h iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +02:00
fsl_pamu.c iommu: fsl_pamu: use for_each_of_cpu_node iterator 2018-09-28 14:25:58 -05:00
fsl_pamu.h iommu/pamu: Fix PAMU boot crash 2017-08-23 16:28:09 +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 pci-v5.2-changes 2019-05-14 10:30:10 -07:00
intel-iommu-debugfs.c iommu/vt-d: Add debugfs support to show context internals 2018-09-25 14:33:44 +02:00
intel-iommu.c pci-v5.2-changes 2019-05-14 10:30:10 -07:00
intel-pasid.c iommu/vt-d: Fix leak in intel_pasid_alloc_table on error path 2019-05-03 17:34:27 +02:00
intel-pasid.h iommu/vt-d: Shared virtual address in scalable mode 2018-12-11 10:46:00 +01:00
intel-svm.c iommu/vt-d: Make intel_iommu_enable_pasid() more generic 2019-04-11 17:15:48 +02:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm-v7s: request DMA32 memory, and improve debugging 2019-03-29 10:01:37 -07:00
io-pgtable-arm.c iommu: io-pgtable: Add ARM Mali midgard MMU page table format 2019-04-12 12:52:38 -05:00
io-pgtable.c iommu: io-pgtable: Add ARM Mali midgard MMU page table format 2019-04-12 12:52:38 -05:00
iommu-debugfs.c iommu: Fix IOMMU debugfs fallout 2019-02-26 11:15:58 +01:00
iommu-sysfs.c iommu/sysfs: Rename iommu_release_device() 2018-12-17 12:47:49 +01:00
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: Introduce device fault report API 2019-06-12 10:19:06 +02:00
iova.c iommu/iova: Fix tracking of recently failed iova address 2019-03-22 12:01:58 +01:00
ipmmu-vmsa.c iommu: Allow io-pgtable to be used outside of drivers/iommu/ 2019-02-11 11:26:48 +01:00
irq_remapping.c treewide: Add SPDX license identifier for missed files 2019-05-21 10:50:45 +02:00
irq_remapping.h iommu/hyper-v: Add Hyper-V stub IOMMU driver 2019-02-28 11:12:16 +01:00
Kconfig treewide: Add SPDX license identifier - Makefile/Kconfig 2019-05-21 10:50:46 +02:00
Makefile iommu/hyper-v: Add Hyper-V stub IOMMU driver 2019-02-28 11:12:16 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c treewide: replace #include <asm/sizes.h> with #include <linux/sizes.h> 2019-05-14 19:52:52 -07:00
msm_iommu.h
mtk_iommu_v1.c iommu/mediatek: Fix semicolon code style issue 2019-03-01 10:17:56 +01:00
mtk_iommu.c iommu/mediatek: Fix leaked of_node references 2019-04-26 15:24:19 +02:00
mtk_iommu.h iommu: Allow io-pgtable to be used outside of drivers/iommu/ 2019-02-11 11:26:48 +01:00
of_iommu.c iommu/of: Fix probe-deferral 2019-01-11 12:28:24 +01:00
omap-iommu-debug.c iommu/omap: Remove DEBUG_SEQ_FOPS_RO() 2018-11-22 17:10:43 +01:00
omap-iommu.c Merge branches 'arm/shmobile', 'arm/renesas', 'arm/msm', 'arm/smmu', 'arm/omap', 'x86/amd', 'x86/vt-d' and 'core' into next 2018-08-08 12:02:27 +02:00
omap-iommu.h iommu/omap: Add support to program multiple iommus 2017-09-19 11:32:05 +02:00
omap-iopgtable.h
qcom_iommu.c iommu: Allow io-pgtable to be used outside of drivers/iommu/ 2019-02-11 11:26:48 +01:00
rockchip-iommu.c IOMMU: Make dwo drivers use stateless device links 2019-02-01 10:04:08 +01:00
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 iommu/tegra: gart: Perform code refactoring 2019-01-16 13:54:16 +01:00
tegra-smmu.c iommu/tegra-smmu: Respect IOMMU API read-write protections 2019-04-11 14:51:37 +02:00