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linux/drivers/iommu
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Lu Baolu 973043d6bd iommu/vt-d: Allow zero SAGAW if second-stage not supported 
[ Upstream commit bfd3c6b9fa ]

The VT-d spec states (in section 11.4.2) that hardware implementations
reporting second-stage translation support (SSTS) field as Clear also
report the SAGAW field as 0. Fix an inappropriate check in alloc_iommu().

Fixes: 792fb43ce2 ("iommu/vt-d: Enable Intel IOMMU scalable mode by default")
Suggested-by: Raghunathan Srinivasan <raghunathan.srinivasan@intel.com>
Reviewed-by: Kevin Tian <kevin.tian@intel.com>
Signed-off-by: Jacob Pan <jacob.jun.pan@linux.intel.com>
Signed-off-by: Lu Baolu <baolu.lu@linux.intel.com>
Link: https://lore.kernel.org/r/20230318024824.124542-1-baolu.lu@linux.intel.com
Link: https://lore.kernel.org/r/20230329134721.469447-3-baolu.lu@linux.intel.com
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Signed-off-by: Sasha Levin <sashal@kernel.org>
History 2023-04-06 12:10:49 +02:00
..
amd iommu/amd: Fix error handling for pdev_pri_ats_enable() 2023-03-11 13:55:33 +01:00
arm iommu/arm-smmu: Report IOMMU_CAP_CACHE_COHERENCY even betterer 2023-01-18 11:58:21 +01:00
intel iommu/vt-d: Allow zero SAGAW if second-stage not supported 2023-04-06 12:10:49 +02:00
apple-dart.c iommu/dart: Fix apple_dart_device_group for PCI groups 2023-03-10 09:33:36 +01:00
dma-iommu.c iommu/dma: Make header private 2022-09-09 09:26:22 +02:00
dma-iommu.h iommu/dma: Make header private 2022-09-09 09:26:22 +02:00
exynos-iommu.c iommu/exynos: Clean up bus_set_iommu() 2022-09-07 14:26:14 +02:00
fsl_pamu.c iommu/fsl_pamu: Fix resource leak in fsl_pamu_probe() 2022-12-31 13:32:50 +01:00
fsl_pamu.h iommu/fsl_pamu: hardcode the window address and size in pamu_config_ppaace 2021-04-07 10:56:52 +02:00
fsl_pamu_domain.c iommu: Clean up bus_set_iommu() 2022-09-07 14:26:17 +02:00
fsl_pamu_domain.h iommu/fsl_pamu: remove the snoop_id field 2021-04-07 10:56:52 +02:00
hyperv-iommu.c iommu/hyper-v: Use helper instead of directly accessing affinity 2022-08-04 10:02:09 +01:00
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 a quirk to allow pgtable PA up to 35bit 2022-07-07 09:42:59 +02:00
io-pgtable-arm.c Merge branches 'apple/dart', 'arm/mediatek', 'arm/omap', 'arm/smmu', 'virtio', 'x86/vt-d', 'x86/amd' and 'core' into next 2022-09-26 15:52:31 +02:00
io-pgtable-arm.h iommu/io-pgtable-arm: Move some definitions to a header 2020-09-28 23:48:06 +01:00
io-pgtable-dart.c iommu/io-pgtable-dart: Add DART PTE support for t6000 2022-09-26 13:49:40 +02:00
io-pgtable.c Merge branches 'apple/dart', 'arm/mediatek', 'arm/omap', 'arm/smmu', 'virtio', 'x86/vt-d', 'x86/amd' and 'core' into next 2022-09-26 15:52:31 +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: Fix IOMMU debugfs fallout 2019-02-26 11:15:58 +01:00
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 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: Attach device group to old domain in error path 2023-03-11 13:55:40 +01:00
iova.c iommu/iova: Fix alloc iova overflows issue 2023-01-18 11:58:20 +01:00
ipmmu-vmsa.c iommu/ipmmu-vmsa: Clean up bus_set_iommu() 2022-09-07 14:26:14 +02:00
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 Merge branches 'apple/dart', 'arm/mediatek', 'arm/omap', 'arm/smmu', 'virtio', 'x86/vt-d', 'x86/amd' and 'core' into next 2022-09-26 15:52:31 +02:00
Makefile iommu/io-pgtable: Move Apple DART support to its own file 2022-09-26 13:48:40 +02:00
msm_iommu.c iommu: Clean up bus_set_iommu() 2022-09-07 14:26:17 +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 iommu/mediatek: Fix crash on isr after kexec() 2023-01-04 11:28:57 +01:00
mtk_iommu_v1.c iommu/mediatek-v1: Fix an error handling path in mtk_iommu_v1_probe() 2023-01-18 11:58:21 +01:00
of_iommu.c Revert "iommu/of: Delete usage of driver_deferred_probe_check_state()" 2022-08-23 13:14:02 +02:00
omap-iommu-debug.c iommu/omap: Fix buffer overflow in debugfs 2022-09-07 10:42:28 +02:00
omap-iommu.c iommu/omap: Clean up bus_set_iommu() 2022-09-07 14:26:15 +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: fix permission bits in page table entries v2 2022-12-31 13:32:47 +01:00
s390-iommu.c iommu/s390: Fix duplicate domain attachments 2022-12-31 13:32:47 +01:00
sprd-iommu.c iommu: Clean up bus_set_iommu() 2022-09-07 14:26:17 +02:00
sun50i-iommu.c iommu/sun50i: Remove IOMMU_DOMAIN_IDENTITY 2022-12-31 13:32:51 +01:00
tegra-gart.c iommu: Make .release_device optional 2022-07-06 12:55:53 +02:00
tegra-smmu.c iommu/tegra-smmu: Clean up bus_set_iommu() 2022-09-07 14:26:16 +02:00
virtio-iommu.c iommu: Add gfp parameter to iommu_alloc_resv_region 2022-10-21 10:49:32 +02:00