iommu/vt-d: Init QI before root entry is allocated
QI needs to be available when we write the root entry into hardware because flushes might be necessary after this. Tested-by: ZhenHua Li <zhen-hual@hp.com> Tested-by: Baoquan He <bhe@redhat.com> Signed-off-by: Joerg Roedel <jroedel@suse.de>
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@ -2803,6 +2803,8 @@ static int __init init_dmars(void)
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for_each_active_iommu(iommu, drhd) {
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g_iommus[iommu->seq_id] = iommu;
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intel_iommu_init_qi(iommu);
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ret = iommu_init_domains(iommu);
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if (ret)
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goto free_iommu;
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@ -2819,9 +2821,6 @@ static int __init init_dmars(void)
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hw_pass_through = 0;
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}
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for_each_active_iommu(iommu, drhd)
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intel_iommu_init_qi(iommu);
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if (iommu_pass_through)
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iommu_identity_mapping |= IDENTMAP_ALL;
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