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authorYu Zhao <yu.zhao@intel.com>2009-05-18 13:51:37 +0800
committerDavid Woodhouse <David.Woodhouse@intel.com>2009-05-18 14:46:26 +0100
commit93a23a7271dfb811b3adb72779054c3a24433112 (patch)
tree1a5d92b6816bd3bd7f2ac6c342d9b98ec202ed40 /include/linux
parent9dd2fe89062c90a964d122b8be5615d6f2203bbe (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/linux')
-rw-r--r--include/linux/dma_remapping.h1
-rw-r--r--include/linux/intel-iommu.h1
2 files changed, 2 insertions, 0 deletions
diff --git a/include/linux/dma_remapping.h b/include/linux/dma_remapping.h
index e0a03aff63d9..5619f8522738 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 40561b224a17..482dc91fd53a 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 */