From 93a23a7271dfb811b3adb72779054c3a24433112 Mon Sep 17 00:00:00 2001 From: Yu Zhao Date: Mon, 18 May 2009 13:51:37 +0800 Subject: 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 Signed-off-by: David Woodhouse --- include/linux/dma_remapping.h | 1 + include/linux/intel-iommu.h | 1 + 2 files changed, 2 insertions(+) (limited to 'include') 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 */ -- cgit v1.2.2