diff options
| -rw-r--r-- | drivers/iommu/intel/iommu.c | 3 | ||||
| -rw-r--r-- | drivers/iommu/intel/svm.c | 11 | ||||
| -rw-r--r-- | include/uapi/linux/iommu.h | 1 |
3 files changed, 11 insertions, 4 deletions
diff --git a/drivers/iommu/intel/iommu.c b/drivers/iommu/intel/iommu.c index f1c66c94be55..cae400b6807e 100644 --- a/drivers/iommu/intel/iommu.c +++ b/drivers/iommu/intel/iommu.c @@ -5398,8 +5398,7 @@ intel_iommu_sva_invalidate(struct iommu_domain *domain, struct device *dev, int ret = 0; u64 size = 0; - if (!inv_info || !dmar_domain || - inv_info->version != IOMMU_CACHE_INVALIDATE_INFO_VERSION_1) + if (!inv_info || !dmar_domain) return -EINVAL; if (!dev || !dev_is_pci(dev)) diff --git a/drivers/iommu/intel/svm.c b/drivers/iommu/intel/svm.c index 99353d6468fa..0cb9a15f1112 100644 --- a/drivers/iommu/intel/svm.c +++ b/drivers/iommu/intel/svm.c @@ -284,8 +284,15 @@ int intel_svm_bind_gpasid(struct iommu_domain *domain, struct device *dev, if (WARN_ON(!iommu) || !data) return -EINVAL; - if (data->version != IOMMU_GPASID_BIND_VERSION_1 || - data->format != IOMMU_PASID_FORMAT_INTEL_VTD) + if (data->format != IOMMU_PASID_FORMAT_INTEL_VTD) + return -EINVAL; + + /* IOMMU core ensures argsz is more than the start of the union */ + if (data->argsz < offsetofend(struct iommu_gpasid_bind_data, vendor.vtd)) + return -EINVAL; + + /* Make sure no undefined flags are used in vendor data */ + if (data->vendor.vtd.flags & ~(IOMMU_SVA_VTD_GPASID_LAST - 1)) return -EINVAL; if (!dev_is_pci(dev)) diff --git a/include/uapi/linux/iommu.h b/include/uapi/linux/iommu.h index 66d4ca40b40f..e1d9e75f2c94 100644 --- a/include/uapi/linux/iommu.h +++ b/include/uapi/linux/iommu.h @@ -288,6 +288,7 @@ struct iommu_gpasid_bind_data_vtd { #define IOMMU_SVA_VTD_GPASID_PWT (1 << 3) /* page-level write through */ #define IOMMU_SVA_VTD_GPASID_EMTE (1 << 4) /* extended mem type enable */ #define IOMMU_SVA_VTD_GPASID_CD (1 << 5) /* PASID-level cache disable */ +#define IOMMU_SVA_VTD_GPASID_LAST (1 << 6) __u64 flags; __u32 pat; __u32 emt; |