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Commit b63d80d1 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

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: default avatarZhenHua Li <zhen-hual@hp.com>
Tested-by: default avatarBaoquan He <bhe@redhat.com>
Signed-off-by: default avatarJoerg Roedel <jroedel@suse.de>
parent 9f10e5bf

drivers/iommu/intel-iommu.c

+2 −3
Original line number Diff line number Diff line
@@ -2803,6 +2803,8 @@ static int __init init_dmars(void) 
	for_each_active_iommu(iommu, drhd) {

		g_iommus[iommu->seq_id] = iommu;



		intel_iommu_init_qi(iommu);



		ret = iommu_init_domains(iommu);

		if (ret)

			goto free_iommu;
@@ -2819,9 +2821,6 @@ static int __init init_dmars(void) 
			hw_pass_through = 0;

	}



	for_each_active_iommu(iommu, drhd)

		intel_iommu_init_qi(iommu);



	if (iommu_pass_through)

		iommu_identity_mapping |= IDENTMAP_ALL;