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d0be55fbeb
linux/drivers/iommu
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Robin Murphy d0be55fbeb iommu: Add capability for pre-boot DMA protection 
VT-d's dmar_platform_optin() actually represents a combination of
properties fairly well standardised by Microsoft as "Pre-boot DMA
Protection" and "Kernel DMA Protection"[1]. As such, we can provide
interested consumers with an abstracted capability rather than
driver-specific interfaces that won't scale. We name it for the former
aspect since that's what external callers are most likely to be
interested in; the latter is for the IOMMU layer to handle itself.

[1] https://docs.microsoft.com/en-us/windows-hardware/design/device-experiences/oem-kernel-dma-protection

Suggested-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Reviewed-by: Lu Baolu <baolu.lu@linux.intel.com>
Signed-off-by: Robin Murphy <robin.murphy@arm.com>
Link: https://lore.kernel.org/r/d6218dff2702472da80db6aec2c9589010684551.1650878781.git.robin.murphy@arm.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-04-28 10:30:25 +02:00
..
amd iommu/amd: Enable swiotlb in all cases 2022-04-28 10:26:49 +02:00
arm IOMMU Updates for Linux v5.18 2022-03-24 19:48:57 -07:00
intel iommu: Add capability for pre-boot DMA protection 2022-04-28 10:30:25 +02:00
apple-dart.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
dma-iommu.c dma-iommu: Check that swiotlb is active before trying to use it 2022-04-28 10:26:49 +02:00
exynos-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
fsl_pamu_domain.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
fsl_pamu_domain.h iommu/fsl_pamu: remove the snoop_id field 2021-04-07 10:56:52 +02:00
fsl_pamu.c iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace 2021-04-07 10:56:52 +02:00
fsl_pamu.h iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace 2021-04-07 10:56:52 +02:00
hyperv-iommu.c iommu/hyperv: setup an IO-APIC IRQ remapping domain for root partition 2021-02-11 08:47:07 +00:00
io-pgfault.c iommu: Add a page fault handler 2021-04-07 10:54:29 +02:00
io-pgtable-arm-v7s.c iommu/io-pgtable-arm-v7s: Add error handle for page table allocation failure 2021-12-14 14:45:35 +00:00
io-pgtable-arm.c iommu/io-pgtable-arm: Fix table descriptor paddr formatting 2021-12-06 13:03:01 +01:00
io-pgtable-arm.h iommu/io-pgtable-arm: Move some definitions to a header 2020-09-28 23:48:06 +01:00
io-pgtable.c iommu/io-pgtable: Add DART pagetable format 2021-08-12 13:15:02 +02:00
ioasid.c iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit 2022-02-15 11:31:35 +01:00
iommu-debugfs.c
iommu-sva-lib.c iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit 2022-02-15 11:31:35 +01:00
iommu-sva-lib.h iommu/sva: Assign a PASID to mm on PASID allocation and free it on mm exit 2022-02-15 11:31:35 +01:00
iommu-sysfs.c drivers/iommu: Export core IOMMU API symbols to permit modular drivers 2019-12-23 14:06:05 +01:00
iommu-traces.c
iommu.c iommu: Introduce device_iommu_capable() 2022-04-28 10:30:25 +02:00
iova.c iommu/iova: Improve 32-bit free space estimate 2022-03-04 10:40:40 +01:00
ipmmu-vmsa.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
irq_remapping.c x86: Kill all traces of irq_remapping_get_irq_domain() 2020-10-28 20:26:28 +01:00
irq_remapping.h x86: Kill all traces of irq_remapping_get_irq_domain() 2020-10-28 20:26:28 +01:00
Kconfig iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVA 2022-02-14 19:17:46 +01:00
Makefile iommu/sva: Rename CONFIG_IOMMU_SVA_LIB to CONFIG_IOMMU_SVA 2022-02-14 19:17:46 +01:00
msm_iommu_hw-8xxx.h
msm_iommu.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
msm_iommu.h
mtk_iommu_v1.c Driver core changes for 5.18-rc1 2022-03-28 12:41:28 -07:00
mtk_iommu.c Driver core changes for 5.18-rc1 2022-03-28 12:41:28 -07:00
mtk_iommu.h iommu/mediatek: Make use of the helper component_compare/release_of 2022-02-25 12:16:13 +01:00
of_iommu.c iommu: Remove unused of_get_dma_window() 2021-06-08 14:15:46 +02:00
omap-iommu-debug.c iommu/omap: Check for failure of a call to omap_iommu_dump_ctx 2020-07-22 15:02:33 +02:00
omap-iommu.c iommu/omap: Fix regression in probe for NULL pointer dereference 2022-04-08 11:16:29 +02:00
omap-iommu.h
omap-iopgtable.h iommu/omap: Fix -Woverflow warnings when compiling on 64-bit architectures 2020-03-04 16:24:46 +01:00
rockchip-iommu.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
s390-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
sprd-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
sun50i-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
tegra-gart.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
tegra-smmu.c Merge branches 'arm/mediatek', 'arm/msm', 'arm/renesas', 'arm/rockchip', 'arm/smmu', 'x86/vt-d' and 'x86/amd' into next 2022-03-08 12:21:31 +01:00
virtio-iommu.c iommu: Split struct iommu_ops 2022-02-28 13:25:49 +01:00