bd421264ed
The IOMMU core code has support for deferring the attachment of a domain
to a device. This is needed in kdump kernels where the new domain must
not be attached to a device before the device driver takes it over.
When the AMD IOMMU driver got converted to use the dma-iommu
implementation, the deferred attaching got lost. The code in
dma-iommu.c has support for deferred attaching, but it calls into
iommu_attach_device() to actually do it. But iommu_attach_device()
will check if the device should be deferred in it code-path and do
nothing, breaking deferred attachment.
Move the is_deferred_attach() check out of the attach_device path and
into iommu_group_add_device() to make deferred attaching work from the
dma-iommu code.
Fixes:
|
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|---|---|---|
| .. | ||
| Kconfig | ||
| Makefile | ||
| amd_iommu.c | ||
| amd_iommu.h | ||
| amd_iommu_debugfs.c | ||
| amd_iommu_init.c | ||
| amd_iommu_proto.h | ||
| amd_iommu_quirks.c | ||
| amd_iommu_types.h | ||
| amd_iommu_v2.c | ||
| arm-smmu-impl.c | ||
| arm-smmu-qcom.c | ||
| arm-smmu-v3.c | ||
| arm-smmu.c | ||
| arm-smmu.h | ||
| dma-iommu.c | ||
| dmar.c | ||
| exynos-iommu.c | ||
| fsl_pamu.c | ||
| fsl_pamu.h | ||
| fsl_pamu_domain.c | ||
| fsl_pamu_domain.h | ||
| hyperv-iommu.c | ||
| intel-iommu-debugfs.c | ||
| intel-iommu.c | ||
| intel-pasid.c | ||
| intel-pasid.h | ||
| intel-svm.c | ||
| intel-trace.c | ||
| intel_irq_remapping.c | ||
| io-pgtable-arm-v7s.c | ||
| io-pgtable-arm.c | ||
| io-pgtable.c | ||
| ioasid.c | ||
| iommu-debugfs.c | ||
| iommu-sysfs.c | ||
| iommu-traces.c | ||
| iommu.c | ||
| iova.c | ||
| ipmmu-vmsa.c | ||
| irq_remapping.c | ||
| irq_remapping.h | ||
| msm_iommu.c | ||
| msm_iommu.h | ||
| msm_iommu_hw-8xxx.h | ||
| mtk_iommu.c | ||
| mtk_iommu.h | ||
| mtk_iommu_v1.c | ||
| of_iommu.c | ||
| omap-iommu-debug.c | ||
| omap-iommu.c | ||
| omap-iommu.h | ||
| omap-iopgtable.h | ||
| qcom_iommu.c | ||
| rockchip-iommu.c | ||
| s390-iommu.c | ||
| tegra-gart.c | ||
| tegra-smmu.c | ||
| virtio-iommu.c | ||