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Commit 98383fc3 authored by Joerg Roedel's avatar Joerg Roedel
Browse files

AMD IOMMU: add domain destroy function for IOMMU API 



Impact: add a generic function for releasing protection domains

Signed-off-by: default avatarJoerg Roedel <joerg.roedel@amd.com>
parent c156e347

arch/x86/kernel/amd_iommu.c

+21 −0
Original line number Diff line number Diff line
@@ -1636,4 +1636,25 @@ out_free: 
	return -ENOMEM;

}



static void amd_iommu_domain_destroy(struct iommu_domain *dom)

{

	struct protection_domain *domain = dom->priv;



	if (!domain)

		return;



	if (domain->dev_cnt > 0)

		cleanup_domain(domain);



	BUG_ON(domain->dev_cnt != 0);



	free_pagetable(domain);



	domain_id_free(domain->id);



	kfree(domain);



	dom->priv = NULL;

}



#endif