Re: [PATCH v6 14/14] iommu/arm-smmu-v3: Set MEV bit in nested STE for DoS mitigations
From: Nicolin Chen <hidden>
Date: 2025-02-20 09:10:04
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On Fri, Jan 24, 2025 at 04:30:43PM -0800, Nicolin Chen wrote:
quoted hunk ↗ jump to hunk
diff --git a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c index ceeed907a714..20a0e39d7caa 100644 --- a/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c +++ b/drivers/iommu/arm/arm-smmu-v3/arm-smmu-v3-iommufd.c@@ -43,6 +43,8 @@ static void arm_smmu_make_nested_cd_table_ste( target->data[0] |= nested_domain->ste[0] & ~cpu_to_le64(STRTAB_STE_0_CFG); target->data[1] |= nested_domain->ste[1]; + /* Merge events for DoS mitigations on eventq */ + target->data[1] |= STRTAB_STE_1_MEV;
This should have cpu_to_le64(). Fixed accordingly. Thanks Nicolin