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alistair23-linux/drivers/iommu
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Chris Wilson 29aaebbca4 iommu/vt-d: Handle 36bit addressing for x86-32 
Beware that the address size for x86-32 may exceed unsigned long.

[    0.368971] UBSAN: shift-out-of-bounds in drivers/iommu/intel/iommu.c:128:14
[    0.369055] shift exponent 36 is too large for 32-bit type 'long unsigned int'

If we don't handle the wide addresses, the pages are mismapped and the
device read/writes go astray, detected as DMAR faults and leading to
device failure. The behaviour changed (from working to broken) in commit
fa954e6831 ("iommu/vt-d: Delegate the dma domain to upper layer"), but
the error looks older.

Fixes: fa954e6831 ("iommu/vt-d: Delegate the dma domain to upper layer")
Signed-off-by: Chris Wilson <chris@chris-wilson.co.uk>
Acked-by: Lu Baolu <baolu.lu@linux.intel.com>
Cc: James Sewart <jamessewart@arista.com>
Cc: Lu Baolu <baolu.lu@linux.intel.com>
Cc: Joerg Roedel <jroedel@suse.de>
Cc: <stable@vger.kernel.org> # v5.3+
Link: https://lore.kernel.org/r/20200822160209.28512-1-chris@chris-wilson.co.uk
Signed-off-by: Joerg Roedel <jroedel@suse.de>
 		2020-09-04 12:14:28 +02:00
..
amd iommu/amd: Do not use IOMMUv2 functionality when SME is active 2020-09-04 12:07:08 +02:00
arm treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00
intel iommu/vt-d: Handle 36bit addressing for x86-32 2020-09-04 12:14:28 +02:00
Kconfig IOMMU Updates for Linux v5.9 2020-08-11 14:13:24 -07:00
Makefile More Arm SMMU updates for 5.9 2020-07-29 14:47:37 +02:00
dma-iommu.c dma-pool: fix coherent pool allocations for IOMMU mappings 2020-08-14 16:27:00 +02:00
exynos-iommu.c Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2020-07-29 14:42:00 +02:00
fsl_pamu.c iommu/pamu: Use kzfree() in fsl_pamu_probe() 2020-06-30 10:47:38 +02:00
fsl_pamu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
fsl_pamu_domain.c iommu/pamu: Use dev_iommu_priv_get/set() 2020-06-30 11:59:48 +02:00
fsl_pamu_domain.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 266 2019-06-05 17:30:28 +02:00
hyperv-iommu.c irqdomain/treewide: Keep firmware node unconditionally allocated 2020-07-14 17:44:42 +02:00
io-pgtable-arm-v7s.c iommu: Add gfp parameter to io_pgtable_ops->map() 2020-07-24 14:29:47 +02:00
io-pgtable-arm.c Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2020-07-29 14:42:00 +02:00
io-pgtable.c iommu/io-pgtable-arm: Rationalise TCR handling 2020-01-10 15:52:24 +00:00
ioasid.c iommu/ioasid: Add custom allocators 2019-10-15 13:34:25 +02:00
iommu-debugfs.c iommu: Fix IOMMU debugfs fallout 2019-02-26 11:15:58 +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 License cleanup: add SPDX GPL-2.0 license identifier to files with no license 2017-11-02 11:10:55 +01:00
iommu.c Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2020-07-29 14:42:00 +02:00
iova.c iommu/iova: Don't BUG on invalid PFNs 2020-06-30 10:42:27 +02:00
ipmmu-vmsa.c IOMMU Updates for Linux v5.9 2020-08-11 14:13:24 -07:00
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
msm_iommu.c iommu: Add gfp parameter to io_pgtable_ops->map() 2020-07-24 14:29:47 +02:00
msm_iommu.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
msm_iommu_hw-8xxx.h treewide: Replace GPLv2 boilerplate/reference with SPDX - rule 267 2019-06-05 17:30:29 +02:00
mtk_iommu.c Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2020-07-29 14:42:00 +02:00
mtk_iommu.h Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2020-07-29 14:42:00 +02:00
mtk_iommu_v1.c iommu/mediatek: Do no use dev->archdata.iommu 2020-06-30 11:59:48 +02:00
of_iommu.c of/device: Add input id to of_dma_configure() 2020-07-28 15:51:32 +01:00
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 Merge branches 'arm/renesas', 'arm/qcom', 'arm/mediatek', 'arm/omap', 'arm/exynos', 'arm/smmu', 'ppc/pamu', 'x86/vt-d', 'x86/amd' and 'core' into next 2020-07-29 14:42:00 +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 iommu/rockchip: Use dev_iommu_priv_get/set() 2020-06-30 11:59:48 +02:00
s390-iommu.c s390 updates for the 5.8 merge window 2020-06-08 12:05:31 -07:00
sun50i-iommu.c iommu/sun50i: Remove unused variable 2020-06-30 12:05:09 +02:00
tegra-gart.c iommu/tegra: Use dev_iommu_priv_get/set() 2020-06-30 11:59:48 +02:00
tegra-smmu.c iommu/tegra: Use dev_iommu_priv_get/set() 2020-06-30 11:59:48 +02:00
virtio-iommu.c treewide: Use fallthrough pseudo-keyword 2020-08-23 17:36:59 -05:00