diff options
Diffstat (limited to 'drivers/iommu/intel-iommu.c')
| -rw-r--r-- | drivers/iommu/intel-iommu.c | 9 |
1 files changed, 6 insertions, 3 deletions
diff --git a/drivers/iommu/intel-iommu.c b/drivers/iommu/intel-iommu.c index e758d8ed8fb5..86f9e82b015b 100644 --- a/drivers/iommu/intel-iommu.c +++ b/drivers/iommu/intel-iommu.c @@ -71,6 +71,9 @@ __DOMAIN_MAX_PFN(gaw), (unsigned long)-1)) #define DOMAIN_MAX_ADDR(gaw) (((uint64_t)__DOMAIN_MAX_PFN(gaw)) << VTD_PAGE_SHIFT) +/* IO virtual address start page frame number */ +#define IOVA_START_PFN (1) + #define IOVA_PFN(addr) ((addr) >> PAGE_SHIFT) #define DMA_32BIT_PFN IOVA_PFN(DMA_BIT_MASK(32)) #define DMA_64BIT_PFN IOVA_PFN(DMA_BIT_MASK(64)) @@ -1632,7 +1635,7 @@ static int dmar_init_reserved_ranges(void) struct iova *iova; int i; - init_iova_domain(&reserved_iova_list, DMA_32BIT_PFN); + init_iova_domain(&reserved_iova_list, IOVA_START_PFN, DMA_32BIT_PFN); lockdep_set_class(&reserved_iova_list.iova_rbtree_lock, &reserved_rbtree_key); @@ -1690,7 +1693,7 @@ static int domain_init(struct dmar_domain *domain, int guest_width) int adjust_width, agaw; unsigned long sagaw; - init_iova_domain(&domain->iovad, DMA_32BIT_PFN); + init_iova_domain(&domain->iovad, IOVA_START_PFN, DMA_32BIT_PFN); domain_reserve_special_ranges(domain); /* calculate AGAW */ @@ -4313,7 +4316,7 @@ static int md_domain_init(struct dmar_domain *domain, int guest_width) { int adjust_width; - init_iova_domain(&domain->iovad, DMA_32BIT_PFN); + init_iova_domain(&domain->iovad, IOVA_START_PFN, DMA_32BIT_PFN); domain_reserve_special_ranges(domain); /* calculate AGAW */ |