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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-12-02 18:34:12 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-01-03 14:11:55 +0100 |
| commit | 98383fc301c6546af0f3a8a1d3cb8bf218f7e940 (patch) | |
| tree | c376128da8396b1177996c60c63c1cc86aaf8458 /arch/x86/kernel | |
| parent | c156e347d6d3c36b6843c3b168eda61b9a02c827 (diff) | |
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>
Diffstat (limited to 'arch/x86/kernel')
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 21 |
1 files changed, 21 insertions, 0 deletions
diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index 6c0bd49cee5..891d713d9c9 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -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 |