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VT-d: support the device IOTLB

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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>
This commit is contained in:
Yu Zhao 2009-05-18 13:51:37 +08:00 • committed by David Woodhouse
parent 9dd2fe8906
commit 93a23a7271
3 changed files with 102 additions and 9 deletions
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1
include/linux/dma_remapping.h
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@ -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;