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linux/drivers/iommu
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Ashok Raj a6cc35756b iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions 
commit 1c387188c6 upstream.

The VT-d specification (§8.3.3) says:
    ‘Virtual Functions’ of a ‘Physical Function’ are under the scope
    of the same remapping unit as the ‘Physical Function’.

The BIOS is not required to list all the possible VFs in the scope
tables, and arguably *shouldn't* make any attempt to do so, since there
could be a huge number of them.

This has been broken basically for ever — the VF is never going to match
against a specific unit's scope, so it ends up being assigned to the
INCLUDE_ALL IOMMU. Which was always actually correct by coincidence, but
now we're looking at Root-Complex integrated devices with SR-IOV support
it's going to start being wrong.

Fix it to simply use pci_physfn() before doing the lookup for PCI devices.

Signed-off-by: Sainath Grandhi <sainath.grandhi@intel.com>
Signed-off-by: Ashok Raj <ashok.raj@intel.com>
Signed-off-by: David Woodhouse <dwmw2@infradead.org>
Signed-off-by: Ben Hutchings <ben@decadent.org.uk>
History 2017-02-23 03:54:26 +00:00
..
amd_iommu.c iommu/amd: Free domain id when free a domain of struct dma_ops_domain 2017-02-23 03:54:01 +00:00
amd_iommu_init.c iommu/amd: Fix boot warning when device 00:00.0 is not iommu covered 2016-03-24 10:00:53 +00:00
amd_iommu_proto.h perf/x86/amd: Add IOMMU Performance Counter resource management 2013-06-19 13:04:52 +02:00
amd_iommu_types.h iommu/amd: Don't clear DTE flags when modifying it 2015-11-16 11:27:11 +00:00
amd_iommu_v2.c iommu/amd: Fix small race between invalidate_range_end/start 2014-06-20 16:14:22 +02:00
arm-smmu.c iommu/arm-smmu: fix programming of SMMU_CBn_TCR for stage 1 2014-10-05 13:41:00 -07:00
dmar.c iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions 2017-02-23 03:54:26 +00:00
exynos-iommu.c Driver core / kernfs pull request for 3.16-rc1 2014-06-03 08:07:41 -07:00
fsl_pamu.c iommu/fsl: Fix PAMU window size check. 2014-07-07 10:30:01 +02:00
fsl_pamu.h iommu/fsl: Freescale PAMU driver and iommu implementation. 2013-08-14 11:38:34 +02:00
fsl_pamu_domain.c iommu/fsl: Fix warning resulting from adding PCI device twice 2014-10-05 13:41:00 -07:00
fsl_pamu_domain.h iommu/fsl: Freescale PAMU driver and iommu implementation. 2013-08-14 11:38:34 +02:00
intel-iommu.c iommu/vt-d: Fix IOMMU lookup for SR-IOV Virtual Functions 2017-02-23 03:54:26 +00:00
intel_irq_remapping.c iommu/vt-d: Fix 64-bit accesses to 32-bit DMAR_GSTS_REG 2016-03-04 10:26:36 +00:00
iommu-traces.c iommu: Add iommu_error class event to iommu trace 2013-09-25 11:07:04 +02:00
iommu.c Merge branches 'iommu/fixes', 'tracing', 'core', 'arm/tegra', 'x86/vt-d', 'arm/smmu' and 'arm/shmobile' into next 2013-11-01 14:44:25 +01:00
iova.c iommu/vt-d: Update IOMMU state when memory hotplug happens 2014-03-04 17:51:06 +01:00
ipmmu-vmsa.c arm/ipmmu-vmsa: Fix compile error 2014-05-26 13:18:18 +02:00
irq_remapping.c x86: irq_remapping: Use irq_alloc/free_hwirq() 2014-05-16 14:05:18 +02:00
irq_remapping.h iommu/vt-d: add quirk for broken interrupt remapping on 55XX chipsets 2013-04-18 17:00:47 +02:00
Kconfig Merge branches 'iommu/fixes', 'arm/omap', 'arm/smmu', 'arm/shmobile', 'x86/amd', 'arm/exynos', 'arm/renesas', 'ppc/pamu' and 'arm/msm' into next 2014-05-30 20:22:10 +02:00
Makefile iommu: Add driver for Renesas VMSA-compatible IPMMU 2014-05-26 11:18:21 +02:00
msm_iommu.c iommu/msm: Move mach includes to iommu directory 2013-08-06 11:18:03 -07:00
msm_iommu.h iommu/msm: Move mach includes to iommu directory 2013-08-06 11:18:03 -07:00
msm_iommu_dev.c iommu/msm: Use devm_ioremap_resource to simplify code 2014-05-30 20:20:12 +02:00
msm_iommu_hw-8xxx.h iommu/msm: Move mach includes to iommu directory 2013-08-06 11:18:03 -07:00
of_iommu.c iommu: add missing include 2014-01-07 15:16:27 +01:00
omap-iommu-debug.c drivers/iommu/omap-iommu-debug.c: fix decimal permissions 2014-02-25 15:25:42 -08:00
omap-iommu.c iommu/omap: Fix map protection value handling 2014-04-16 16:30:18 +02:00
omap-iommu.h iommu/omap: Enable bus-error back on supported iommus 2014-03-04 17:02:08 +01:00
omap-iommu2.c iommu/omap: Enable bus-error back on supported iommus 2014-03-04 17:02:08 +01:00
omap-iopgtable.h iommu/omap: Move to_iommu definition from omap-iopgtable.h 2014-04-16 16:30:15 +02:00
omap-iovmm.c iommu/omap: fix checkpatch warnings in omap iommu code 2013-06-20 16:53:26 +02:00
pci.h iommu: Move swap_pci_ref function to drivers/iommu/pci.h. 2013-04-23 14:55:00 +02:00
shmobile-iommu.c arm: dma-mapping: remove order parameter from arm_iommu_create_mapping() 2014-02-28 11:55:18 +01:00
shmobile-ipmmu.c iommu/shmobile: Use devm_ioremap_resource() 2014-04-17 12:16:12 +02:00
shmobile-ipmmu.h iommu/shmobile: Turn the flush_lock mutex into a spinlock 2014-01-07 15:35:25 +01:00
tegra-gart.c iommu/tegra-gart: Staticize tegra_gart_pm_ops 2013-11-01 14:23:20 +01:00
tegra-smmu.c iommu/tegra-smmu: Staticize tegra_smmu_pm_ops 2013-11-01 14:23:33 +01:00