blob: 136f170cecc294bd1c2b5b792bb93d89c025c021 (
plain) (
tree)
|
|
#ifndef _DMA_REMAPPING_H
#define _DMA_REMAPPING_H
/*
* VT-d hardware uses 4KiB page size regardless of host page size.
*/
#define VTD_PAGE_SHIFT (12)
#define VTD_PAGE_SIZE (1UL << VTD_PAGE_SHIFT)
#define VTD_PAGE_MASK (((u64)-1) << VTD_PAGE_SHIFT)
#define VTD_PAGE_ALIGN(addr) (((addr) + VTD_PAGE_SIZE - 1) & VTD_PAGE_MASK)
#define DMA_PTE_READ (1)
#define DMA_PTE_WRITE (2)
struct intel_iommu;
struct dmar_domain;
struct root_entry;
extern void free_dmar_iommu(struct intel_iommu *iommu);
extern int iommu_calculate_agaw(struct intel_iommu *iommu);
extern int dmar_disabled;
#endif
|
