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| author | Joerg Roedel <joerg.roedel@amd.com> | 2008-12-10 17:48:59 (GMT) |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-01-03 13:11:56 (GMT) |
| commit | e2dc14a2a6c9a83baaafc51f06b7e73cec2167be (patch) | |
| tree | ba2344f04adac30ab1c4e5cace83b5390f0d7580 | |
| parent | 26961efe0dab9ca73f8fc3b6137b814252e04972 (diff) | |
| download | linux-e2dc14a2a6c9a83baaafc51f06b7e73cec2167be.tar.xz | |
AMD IOMMU: add a domain flag for default domains
Impact: adds a new protection domain flag
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
| -rw-r--r-- | arch/x86/include/asm/amd_iommu_types.h | 2 | ||||
| -rw-r--r-- | arch/x86/kernel/amd_iommu.c | 1 |
2 files changed, 3 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index 1c769f4..6adc702 100644 --- a/arch/x86/include/asm/amd_iommu_types.h +++ b/arch/x86/include/asm/amd_iommu_types.h @@ -192,6 +192,8 @@ /* Protection domain flags */ #define PD_DMA_OPS_MASK (1UL << 0) /* domain used for dma_ops */ +#define PD_DEFAULT_MASK (1UL << 1) /* domain is a default dma_ops + domain for an IOMMU */ /* * This structure contains generic data for IOMMU protection domains diff --git a/arch/x86/kernel/amd_iommu.c b/arch/x86/kernel/amd_iommu.c index d9b651c..f295654 100644 --- a/arch/x86/kernel/amd_iommu.c +++ b/arch/x86/kernel/amd_iommu.c @@ -1574,6 +1574,7 @@ int __init amd_iommu_init_dma_ops(void) iommu->default_dom = dma_ops_domain_alloc(iommu, order); if (iommu->default_dom == NULL) return -ENOMEM; + iommu->default_dom->domain.flags |= PD_DEFAULT_MASK; ret = iommu_init_unity_mappings(iommu); if (ret) goto free_domains; |