Jiang Liu 360eb3c568 iommu/vt-d: use dedicated bitmap to track remapping entry allocation status ... Currently Intel interrupt remapping drivers uses the "present" flag bit in remapping entry to track whether an entry is allocated or not. It works as follow: 1) allocate a remapping entry and set its "present" flag bit to 1 2) compose other fields for the entry 3) update the remapping entry with the composed value The remapping hardware may access the entry between step 1 and step 3, which then observers an entry with the "present" flag set but random values in all other fields. This patch introduces a dedicated bitmap to track remapping entry allocation status instead of sharing the "present" flag with hardware, thus eliminate the race window. It also simplifies the implementation. Tested-and-reviewed-by: Yijing Wang <wangyijing@huawei.com> Signed-off-by: Jiang Liu <jiang.liu@linux.intel.com> Signed-off-by: Joerg Roedel <joro@8bytes.org>		2014-01-07 17:16:19 +01:00
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amd_iommu_init.c	iommu/amd: Clean up unnecessary MSI/MSI-X capability find	2013-08-14 12:18:52 +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	perf/x86/amd: Add IOMMU Performance Counter resource management	2013-06-19 13:04:52 +02:00
amd_iommu_v2.c	IOMMU Updates for Linux v3.6-rc1	2012-07-24 16:24:11 -07:00
amd_iommu.c	iommu/amd: Fix resource leak in iommu_init_device()	2013-08-14 22:15:46 +02:00
arm-smmu.c	iommu/arm-smmu: fix error return code in arm_smmu_device_dt_probe()	2013-12-06 16:44:25 +00:00
dmar.c	iommu/vt-d: Mark functions as static in dmar.c	2013-12-30 15:36:30 +01:00
exynos-iommu.c	iommu/exynos: Remove dead code (set_prefbuf)	2013-08-14 11:28:45 +02:00
fsl_pamu_domain.c	iommu/fsl: Fix whitespace problems noticed by git-am	2013-08-14 11:42:29 +02:00
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: Remove unnecessary 'fsl-pamu' prefixes	2013-08-14 11:44:30 +02:00
fsl_pamu.h	iommu/fsl: Freescale PAMU driver and iommu implementation.	2013-08-14 11:38:34 +02:00
intel_irq_remapping.c	iommu/vt-d: use dedicated bitmap to track remapping entry allocation status	2014-01-07 17:16:19 +01:00
intel-iommu.c	iommu/vt-d: Use dev_is_pci() to check whether it is pci device	2014-01-07 15:21:45 +01:00
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: Fix typo in iommu	2012-07-24 12:58:49 +02:00
irq_remapping.c	iommu/vt-d: Mark function eoi_ioapic_pin_remapped() as static in irq_remapping.c	2013-12-30 15:37:23 +01:00
irq_remapping.h	iommu/vt-d: add quirk for broken interrupt remapping on 55XX chipsets	2013-04-18 17:00:47 +02:00
Kconfig	Don't try to compile shmobile-iommu outside of ARM	2013-11-15 18:57:42 -08:00
Makefile	iommu: Add event tracing feature to iommu	2013-09-24 12:35:24 +02:00
msm_iommu_dev.c	drivers/iommu: remove unnecessary platform_set_drvdata()	2013-09-11 15:56:24 -07:00
msm_iommu_hw-8xxx.h	iommu/msm: Move mach includes to iommu directory	2013-08-06 11:18:03 -07:00
msm_iommu.c	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
of_iommu.c	iommu: Add DMA window parser, of_get_dma_window()	2012-06-25 13:50:28 +02:00
omap-iommu2.c	iommu/omap: Adapt to runtime pm	2012-12-03 18:48:23 +01:00
omap-iommu-debug.c	ARM: OMAP2+: Move iommu/iovmm headers to platform_data	2012-11-20 10:05:01 -08:00
omap-iommu.c	drivers/iommu: remove unnecessary platform_set_drvdata()	2013-09-11 15:56:24 -07:00
omap-iommu.h	iommu/omap: Adapt to runtime pm	2012-12-03 18:48:23 +01:00
omap-iopgtable.h	drivers/iommu/omap-iopgtable.h: remove unneeded cast of void*	2013-11-13 12:09:00 +09:00
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	iommu/fsl: Make iova dma_addr_t in the iommu_iova_to_phys API.	2013-04-02 18:20:53 +02:00
shmobile-ipmmu.c	iommu/shmobile: Add iommu driver for Renesas IPMMU modules	2013-02-06 10:57:25 +01:00
shmobile-ipmmu.h	iommu/shmobile: Add iommu driver for Renesas IPMMU modules	2013-02-06 10:57:25 +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