diff options
| author | Yu Zhao <yu.zhao@intel.com> | 2009-05-18 13:51:37 +0800 |
|---|---|---|
| committer | David Woodhouse <David.Woodhouse@intel.com> | 2009-05-18 14:46:26 +0100 |
| commit | 93a23a7271dfb811b3adb72779054c3a24433112 (patch) | |
| tree | 1a5d92b6816bd3bd7f2ac6c342d9b98ec202ed40 /include | |
| parent | 9dd2fe89062c90a964d122b8be5615d6f2203bbe (diff) | |
VT-d: support the device IOTLB
Enable the device IOTLB (i.e. ATS) for both the bare metal and KVM
environments.
Signed-off-by: Yu Zhao <yu.zhao@intel.com>
Signed-off-by: David Woodhouse <David.Woodhouse@intel.com>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/dma_remapping.h | 1 | ||||
| -rw-r--r-- | include/linux/intel-iommu.h | 1 |
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h index e0a03aff63d..5619f852273 100644 --- a/include/linux/dma_remapping.h +++ b/include/linux/dma_remapping.h @@ -14,6 +14,7 @@ #define DMA_PTE_SNP (1 << 11) #define CONTEXT_TT_MULTI_LEVEL 0 +#define CONTEXT_TT_DEV_IOTLB 1 #define CONTEXT_TT_PASS_THROUGH 2 struct intel_iommu; diff --git a/include/linux/intel-iommu.h b/include/linux/intel-iommu.h index 40561b224a1..482dc91fd53 100644 --- a/include/linux/intel-iommu.h +++ b/include/linux/intel-iommu.h @@ -124,6 +124,7 @@ static inline void dmar_writeq(void __iomem *addr, u64 val) #define ecap_pass_through(e) ((e >> 6) & 0x1) #define ecap_eim_support(e) ((e >> 4) & 0x1) #define ecap_ir_support(e) ((e >> 3) & 0x1) +#define ecap_dev_iotlb_support(e) (((e) >> 2) & 0x1) #define ecap_max_handle_mask(e) ((e >> 20) & 0xf) #define ecap_sc_support(e) ((e >> 7) & 0x1) /* Snooping Control */ |