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f316ba0a88
linux/drivers/iommu
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Mario Limonciello f316ba0a88 dma-iommu: Check that swiotlb is active before trying to use it 
If the IOMMU is in use and an untrusted device is connected to an external
facing port but the address requested isn't page aligned will cause the
kernel to attempt to use bounce buffers.

If for some reason the bounce buffers have not been allocated this is a
problem that should be made apparent to the user.

Signed-off-by: Mario Limonciello <mario.limonciello@amd.com>
Reviewed-by: Robin Murphy <robin.murphy@arm.com>
Reviewed-by: Christoph Hellwig <hch@lst.de>
Link: https://lore.kernel.org/r/20220404204723.9767-3-mario.limonciello@amd.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
2022-04-28 10:26:49 +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 Updates for Linux v5.18 2022-03-24 19:48:57 -07:00
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: Split struct iommu_ops 2022-02-28 13:25:49 +01:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
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 treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
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 iommu/omap: add support for late attachment of iommu devices 2019-08-09 17:37:10 +02:00
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