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remarkable-linux/drivers/iommu
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David Woodhouse 18436afdc1 iommu/vt-d: Allow RMRR on graphics devices too 
Commit c875d2c1 ("iommu/vt-d: Exclude devices using RMRRs from IOMMU API
domains") prevents certain options for devices with RMRRs. This even
prevents those devices from getting a 1:1 mapping with 'iommu=pt',
because we don't have the code to handle *preserving* the RMRR regions
when moving the device between domains.

There's already an exclusion for USB devices, because we know the only
reason for RMRRs there is a misguided desire to keep legacy
keyboard/mouse emulation running in some theoretical OS which doesn't
have support for USB in its own right... but which *does* enable the
IOMMU.

Add an exclusion for graphics devices too, so that 'iommu=pt' works
there. We should be able to successfully assign graphics devices to
guests too, as long as the initial handling of stolen memory is
reconfigured appropriately. This has certainly worked in the past.

Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Cc: stable@vger.kernel.org
2015-03-25 15:36:35 +00:00
..
amd_iommu.c Merge branch 'x86-apic-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip 2014-12-19 14:02:02 -08:00
amd_iommu_init.c iommu/amd: Fix devid mapping for ivrs_ioapic override 2014-09-25 19:24:52 +02:00
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: Move struct iommu_dev_data to amd_iommu.c 2014-08-26 11:37:37 +02:00
amd_iommu_v2.c Merge branch 'drm-next' of git://people.freedesktop.org/~airlied/linux 2014-12-15 15:52:01 -08:00
arm-smmu.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
dmar.c iommu/vt-d: Search for ACPI _DSM method for DMAR hotplug 2014-11-18 11:18:36 +01:00
exynos-iommu.c Driver core patches for 3.19-rc1 2014-12-14 16:10:09 -08:00
fsl_pamu.c iommu: drop owner assignment from platform_drivers 2014-10-20 16:20:42 +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: Convert to iommu_capable() API function 2014-09-25 15:47:37 +02:00
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: Allow RMRR on graphics devices too 2015-03-25 15:36:35 +00:00
intel_irq_remapping.c iommu/vt-d: Print x2apic opt out info instead of printing a warning 2015-03-25 15:35:19 +00:00
iommu-sysfs.c iommu: Fix compile error in iommu-sysfs.c 2014-07-07 12:01:21 +02:00
iommu-traces.c iommu: Add iommu_error class event to iommu trace 2013-09-25 11:07:04 +02:00
iommu.c ARM: SoC/iommu configuration for 3.19 2014-12-16 14:53:01 -08:00
iova.c iommu/vt-d: Update IOMMU state when memory hotplug happens 2014-03-04 17:51:06 +01:00
ipmmu-vmsa.c iommu/ipmmu-vmsa: Change IOMMU_EXEC to IOMMU_NOEXEC 2015-01-05 12:23:37 +01:00
irq_remapping.c x86: irq_remapping: Use helpers to access irq_cfg data structure associated with IRQ 2014-12-16 14:08:17 +01:00
irq_remapping.h iommu/irq_remapping: Fix the regression of hpet irq remapping 2014-09-25 19:11:47 +02:00
Kconfig ARM: SoC/iommu configuration for 3.19 2014-12-16 14:53:01 -08:00
Makefile Merge branches 'arm/omap', 'arm/msm', 'arm/rockchip', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2014-12-02 13:07:13 +01:00
msm_iommu.c Merge branches 'arm/omap', 'arm/msm', 'arm/rockchip', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2014-12-02 13:07:13 +01:00
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 dev_get_platdata() 2014-11-04 15:03:39 +01:00
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: store DT-probed IOMMU data privately 2014-12-05 14:35:52 +00:00
omap-iommu-debug.c iommu/omap: Switch pagetable debugfs entry to use seq_file 2014-10-23 14:33:48 +02:00
omap-iommu.c Merge branches 'arm/omap', 'arm/msm', 'arm/rockchip', 'arm/renesas', 'arm/smmu', 'x86/vt-d', 'x86/amd' and 'core' into next 2014-12-02 13:07:13 +01:00
omap-iommu.h iommu/omap: Do not export unneeded functions 2014-10-23 14:33:47 +02:00
omap-iopgtable.h iommu/omap: Move to_iommu definition from omap-iopgtable.h 2014-04-16 16:30:15 +02:00
rockchip-iommu.c iommu/rockchip: Drop owner assignment from platform_drivers 2015-01-05 12:40:06 +01:00
shmobile-iommu.c iommu: Add iommu_map_sg() function 2014-11-04 14:53:36 +01:00
shmobile-ipmmu.c iommu: drop owner assignment from platform_drivers 2014-10-20 16:20:42 +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: Provide default ->map_sg() callback 2015-01-26 13:41:07 +01:00
tegra-smmu.c memory: Add NVIDIA Tegra memory controller support 2014-12-04 16:11:47 +01:00