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AMD IOMMU: add domain destroy function for IOMMU API 

Impact: add a generic function for releasing protection domains

Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
This commit is contained in:
Joerg Roedel 2008-12-02 18:34:12 +01:00
parent c156e347d6
commit 98383fc301
1 changed files with 21 additions and 0 deletions
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21
arch/x86/kernel/amd_iommu.c
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@ -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