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63979b8da3
linux/drivers/iommu
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Will Deacon 63979b8da3 iommu/io-pgtable-arm: avoid speculative walks through TTBR1 
Although we set TCR.T1SZ to 0, the input address range covered by TTBR1
is actually calculated using T0SZ in this case on the ARM SMMU. This
could theoretically lead to speculative table walks through physical
address zero, leading to all sorts of fun and games if we have MMIO
regions down there.

This patch avoids the issue by setting EPD1 to disable walks through
the unused TTBR1 register.

Signed-off-by: Will Deacon <will.deacon@arm.com>
2015-03-27 13:39:36 +00:00
..
amd_iommu_init.c IOMMU Updates for Linux v3.20 2015-02-12 09:16:56 -08:00
amd_iommu_proto.h IOMMU Updates for Linux v3.20 2015-02-12 09:16:56 -08:00
amd_iommu_types.h iommu: Update my email address 2015-02-04 16:14:34 +01:00
amd_iommu_v2.c Merge branches 'arm/renesas', 'arm/smmu', 'arm/omap', 'ppc/pamu', 'x86/amd' and 'core' into next 2015-02-04 16:53:44 +01:00
amd_iommu.c IOMMU Updates for Linux v3.20 2015-02-12 09:16:56 -08:00
arm-smmu.c iommu/arm-smmu: handle multi-alias IOMMU groups for PCI devices 2015-03-27 13:39:36 +00:00
dmar.c iommu/vt-d: Search for ACPI _DSM method for DMAR hotplug 2014-11-18 11:18:36 +01:00
exynos-iommu.c iommu/exynos: Play nice in multi-platform builds 2015-02-25 13:40:52 +01:00
fsl_pamu_domain.c iommu/fsl: Various cleanups 2015-02-03 18:47:18 +01:00
fsl_pamu_domain.h iommu/fsl: Freescale PAMU driver and iommu implementation. 2013-08-14 11:38:34 +02:00
fsl_pamu.c iommu/fsl: Various cleanups 2015-02-03 18:47:18 +01:00
fsl_pamu.h iommu/fsl: Various cleanups 2015-02-03 18:47:18 +01:00
intel_irq_remapping.c iommu/irq_remapping: Change variable disable_irq_remap to be static 2015-01-15 11:24:24 +01:00
intel-iommu.c iommu: Make IOVA domain page size explicit 2015-01-19 14:55:22 +01:00
io-pgtable-arm.c iommu/io-pgtable-arm: avoid speculative walks through TTBR1 2015-03-27 13:39:36 +00:00
io-pgtable.c iommu: add ARM LPAE page table allocator 2015-01-19 14:46:44 +00:00
io-pgtable.h iommu: io-pgtable-arm: add non-secure quirk 2015-01-19 14:46:45 +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 iommu: Update my email address 2015-02-04 16:14:34 +01:00
iova.c iommu: Make IOVA domain page size explicit 2015-01-19 14:55:22 +01:00
ipmmu-vmsa.c iommu/ipmmu-vmsa: Fix IOMMU lookup when multiple IOMMUs are registered 2015-01-30 13:46:07 +01:00
irq_remapping.c iommu/irq_remapping: Normailize the way to detect whether IR is enabled 2015-01-15 11:24:24 +01:00
irq_remapping.h IOMMU Updates for Linux v3.20 2015-02-12 09:16:56 -08:00
Kconfig iommu/io-pgtable-arm: Add built time dependency 2015-03-03 14:04:12 +01:00
Makefile Merge branches 'arm/renesas', 'arm/smmu', 'arm/omap', 'ppc/pamu', 'x86/amd' and 'core' into next 2015-02-04 16:53:44 +01:00
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
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
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 iommu/omap: Play nice in multi-platform builds 2015-02-25 13:41:33 +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: Play nice in multi-platform builds 2015-02-25 13:42:25 +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