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| author | Joerg Roedel <joerg.roedel@amd.com> | 2009-11-20 14:57:32 +0100 |
|---|---|---|
| committer | Joerg Roedel <joerg.roedel@amd.com> | 2009-11-27 11:45:50 +0100 |
| commit | c459611424d8b8396060eb766e23bd0c70c993bc (patch) | |
| tree | 2c15dda4d4eda490b8593aba5f29b3e1df7d2878 /arch/x86/include | |
| parent | bb52777ec4d736c2d7c4f037b32d4eeeb172ed89 (diff) | |
x86/amd-iommu: Add per IOMMU reference counting
This patch adds reference counting for protection domains
per IOMMU. This allows a smarter TLB flushing strategy.
Signed-off-by: Joerg Roedel <joerg.roedel@amd.com>
Diffstat (limited to 'arch/x86/include')
| -rw-r--r-- | arch/x86/include/asm/amd_iommu_types.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/arch/x86/include/asm/amd_iommu_types.h b/arch/x86/include/asm/amd_iommu_types.h index ab3e7bf1af7..e68b1481138 100644 --- a/arch/x86/include/asm/amd_iommu_types.h +++ b/arch/x86/include/asm/amd_iommu_types.h @@ -238,7 +238,9 @@ struct protection_domain { unsigned long flags; /* flags to find out type of domain */ bool updated; /* complete domain flush required */ unsigned dev_cnt; /* devices assigned to this domain */ + unsigned dev_iommu[MAX_IOMMUS]; /* per-IOMMU reference count */ void *priv; /* private data */ + }; /* |