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IOMMU Fixes for Linux v6.9-rc7: 

Including:
 
 	- Fix offset miscalculation on ARM-SMMU driver
 
 	- AMD IOMMU fix for initializing state of untrusted devices
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Merge tag 'iommu-fixes-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu

Pull iommu fixes from Joerg Roedel:

 - Fix offset miscalculation on ARM-SMMU driver

 - AMD IOMMU fix for initializing state of untrusted devices

* tag 'iommu-fixes-v6.9-rc7' of git://git.kernel.org/pub/scm/linux/kernel/git/joro/iommu:
  iommu/arm-smmu: Use the correct type in nvidia_smmu_context_fault()
  iommu/amd: Enhance def_domain_type to handle untrusted device
This commit is contained in:
Linus Torvalds 2024-05-10 10:10:21 -07:00
parent 448b3fe5a0 65ade5653f
commit 98957025cf
2 changed files with 5 additions and 3 deletions
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4
drivers/iommu/amd/iommu.c
View File

@ -2754,6 +2754,10 @@ static int amd_iommu_def_domain_type(struct device *dev)
if (!dev_data)
return 0;
/* Always use DMA domain for untrusted device */
if (dev_is_pci(dev) && to_pci_dev(dev)->untrusted)
return IOMMU_DOMAIN_DMA;
/*
* Do not identity map IOMMUv2 capable devices when:
* - memory encryption is active, because some of those devices

4
drivers/iommu/arm/arm-smmu/arm-smmu-nvidia.c
View File

@ -221,11 +221,9 @@ static irqreturn_t nvidia_smmu_context_fault(int irq, void *dev)
unsigned int inst;
irqreturn_t ret = IRQ_NONE;
struct arm_smmu_device *smmu;
struct iommu_domain *domain = dev;
struct arm_smmu_domain *smmu_domain;
struct arm_smmu_domain *smmu_domain = dev;
struct nvidia_smmu *nvidia;
smmu_domain = container_of(domain, struct arm_smmu_domain, domain);
smmu = smmu_domain->smmu;
nvidia = to_nvidia_smmu(smmu);