Joerg Roedel 521fb43eb4 iommu/amd: Fix loop timeout issue in iommu_ga_log_enable() ...

commit 9b45a7738e upstream.

The polling loop for the register change in iommu_ga_log_enable() needs
to have a udelay() in it.  Otherwise the CPU might be faster than the
IOMMU hardware and wrongly trigger the WARN_ON() further down the code
stream. Use a 10us for udelay(), has there is some hardware where
activation of the GA log can take more than a 100ms.

A future optimization should move the activation check of the GA log
to the point where it gets used for the first time. But that is a
bigger change and not suitable for a fix.

Fixes: 8bda0cfbdc ("iommu/amd: Detect and initialize guest vAPIC log")
Signed-off-by: Joerg Roedel <jroedel@suse.de>
Link: https://lore.kernel.org/r/20220204115537.3894-1-joro@8bytes.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

2023-05-16 12:35:25 +09:00

..

amd_iommu_init.c

iommu/amd: Fix loop timeout issue in iommu_ga_log_enable()

2023-05-16 12:35:25 +09:00

amd_iommu_proto.h

Merge branch 'x86/amd-avic' into x86/amd

2016-09-05 12:43:16 +02:00

amd_iommu_types.h

iommu/amd: Increase interrupt remapping table limit to 512 entries

2023-05-16 09:47:24 +09:00

amd_iommu_v2.c

iommu/amd: Fix incorrect error handling in amd_iommu_bind_pasid()

2017-07-05 14:40:30 +02:00

amd_iommu.c

iommu/amd: Fix backport of 140456f994

2023-05-16 11:34:38 +09:00

arm-smmu-v3.c

iommu/arm-smmu-v3: Use WRITE_ONCE() when changing validity of an STE

2023-05-15 16:59:18 +09:00

arm-smmu.c

iommu/arm-smmu: Add support for qcom,smmu-v2 variant

2023-05-15 11:22:46 +09:00

dma-iommu.c

iommu/dma: Handle SG length overflow better

2023-05-15 14:21:29 +09:00

dmar.c

iommu/vt-d: Don't dereference iommu_device if IOMMU_API is not built

2023-05-16 10:33:37 +09:00

exynos-iommu.c

iommu/exynos: add missing put_device() call in exynos_iommu_of_xlate()

2023-05-16 09:23:44 +09:00

fsl_pamu_domain.c

iommu/fsl: Convert to device_group call-back

2015-10-22 00:00:49 +02:00

fsl_pamu_domain.h

iommu/fsl: Make use of domain_alloc and domain_free

2015-03-31 15:32:14 +02:00

fsl_pamu.c

powerpc/fsl: Move fsl_guts.h out of arch/powerpc

2015-10-21 18:05:50 -05:00

fsl_pamu.h

iommu/fsl: Various cleanups

2015-02-03 18:47:18 +01:00

intel_irq_remapping.c

iommu/intel: Fix memleak in intel_irq_remapping_alloc

2023-05-16 10:26:15 +09:00

intel-iommu.c

iommu/vt-d: Do not use flush-queue when caching-mode is on

2023-05-16 10:34:29 +09:00

intel-svm.c

iommu/vt-d: Fix NULL pointer dereference in prq_event_thread()

2023-05-15 10:25:38 +09:00

io-pgtable-arm-v7s.c

iommu/io-pgtable-arm-v7s: Only kmemleak_ignore L2 tables

2023-05-15 12:17:01 +09:00

io-pgtable-arm.c

iommu/io-pgtable-arm: Check for leaf entry before dereferencing it

2017-10-08 10:26:10 +02:00

io-pgtable.c

iommu/io-pgtable: Fix a brace coding style issue.

2016-04-05 15:34:29 +02:00

io-pgtable.h

iommu/io-pgtable: Add MTK 4GB mode in Short-descriptor

2016-04-05 15:39:37 +02:00

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: Fix reference count leak in iommu_group_alloc.

2023-05-15 17:30:21 +09:00

iova.c

iommu/iova: Don't BUG on invalid PFNs

2023-05-16 08:56:39 +09:00

ipmmu-vmsa.c

iommu/ipmmu-vmsa: Fix crash on early domain free

2023-05-15 10:25:40 +09:00

irq_remapping.c

x86/cpufeature: Replace cpu_has_apic with boot_cpu_has() usage

2016-04-13 11:37:41 +02:00

irq_remapping.h

iommu, x86: Setup Posted-Interrupts capability for Intel iommu

2015-06-12 11:33:52 +02:00

Kconfig

iommu/arm-smmu: Support non-PCI devices with SMMUv3

2016-09-16 09:34:17 +01:00

Makefile

Merge branches 'x86/amd', 'x86/vt-d', 'arm/exynos', 'arm/mediatek', 'arm/msm', 'arm/rockchip', 'arm/smmu' and 'core' into next

2016-07-26 16:02:37 +02:00

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: use generic ARMV7S short descriptor pagetable ops

2016-06-21 13:57:13 +02:00

msm_iommu.h

iommu/msm: Add DT adaptation

2016-06-21 13:56:00 +02:00

mtk_iommu_v1.c

iommu/mediatek: Fix driver name

2017-12-20 10:07:28 +01:00

mtk_iommu.c

iommu/mediatek: move the common struct into header file

2016-06-21 11:36:19 +02:00

mtk_iommu.h

iommu/mediatek: Mark static functions in headers inline

2016-08-09 15:46:46 +02:00

of_iommu.c

iommu: Introduce iommu_fwspec

2016-09-16 09:34:15 +01:00

omap-iommu-debug.c

iommu/omap: Check for failure of a call to omap_iommu_dump_ctx

2023-05-16 08:48:25 +09:00

omap-iommu.c

iommu/omap: Register driver before setting IOMMU ops

2018-03-24 11:00:12 +01:00

omap-iommu.h

iommu/omap: Add support for configuring dsp iommus on DRA7xx

2015-10-14 14:35:47 +02:00

omap-iopgtable.h

iommu/omap: Use BIT(x) macros in omap-iopgtable.h

2015-08-03 16:04:42 +02:00

rockchip-iommu.c

iommu/rockchip: Prepare to support generic DMA mapping

2016-06-27 14:50:08 +02:00

s390-iommu.c

iommu/s390: simplify registration of I/O address translation parameters

2016-09-22 13:42:28 +02:00

tegra-gart.c

Merge branches 'iommu/fixes', 'x86/vt-d', 'x86/amd', 'arm/smmu', 'arm/tegra' and 'core' into next

2015-04-02 13:33:19 +02:00

tegra-smmu.c

iommu/tegra-smmu: Fix page tables in > 4 GiB memory

2023-05-15 16:20:44 +09:00