diff options
Diffstat (limited to 'drivers')
-rw-r--r-- | drivers/pci/intel-iommu.c | 33 |
1 files changed, 20 insertions, 13 deletions
diff --git a/drivers/pci/intel-iommu.c b/drivers/pci/intel-iommu.c index db9a26cfeb8f..8af6c96f31b3 100644 --- a/drivers/pci/intel-iommu.c +++ b/drivers/pci/intel-iommu.c | |||
@@ -3047,20 +3047,28 @@ static void intel_iommu_detach_device(struct iommu_domain *domain, | |||
3047 | vm_domain_remove_one_dev_info(dmar_domain, pdev); | 3047 | vm_domain_remove_one_dev_info(dmar_domain, pdev); |
3048 | } | 3048 | } |
3049 | 3049 | ||
3050 | int intel_iommu_map_address(struct dmar_domain *domain, dma_addr_t iova, | 3050 | static int intel_iommu_map_range(struct iommu_domain *domain, |
3051 | u64 hpa, size_t size, int prot) | 3051 | unsigned long iova, phys_addr_t hpa, |
3052 | size_t size, int iommu_prot) | ||
3052 | { | 3053 | { |
3054 | struct dmar_domain *dmar_domain = domain->priv; | ||
3053 | u64 max_addr; | 3055 | u64 max_addr; |
3054 | int addr_width; | 3056 | int addr_width; |
3057 | int prot = 0; | ||
3055 | int ret; | 3058 | int ret; |
3056 | 3059 | ||
3060 | if (iommu_prot & IOMMU_READ) | ||
3061 | prot |= DMA_PTE_READ; | ||
3062 | if (iommu_prot & IOMMU_WRITE) | ||
3063 | prot |= DMA_PTE_WRITE; | ||
3064 | |||
3057 | max_addr = (iova & VTD_PAGE_MASK) + VTD_PAGE_ALIGN(size); | 3065 | max_addr = (iova & VTD_PAGE_MASK) + VTD_PAGE_ALIGN(size); |
3058 | if (domain->max_addr < max_addr) { | 3066 | if (dmar_domain->max_addr < max_addr) { |
3059 | int min_agaw; | 3067 | int min_agaw; |
3060 | u64 end; | 3068 | u64 end; |
3061 | 3069 | ||
3062 | /* check if minimum agaw is sufficient for mapped address */ | 3070 | /* check if minimum agaw is sufficient for mapped address */ |
3063 | min_agaw = vm_domain_min_agaw(domain); | 3071 | min_agaw = vm_domain_min_agaw(dmar_domain); |
3064 | addr_width = agaw_to_width(min_agaw); | 3072 | addr_width = agaw_to_width(min_agaw); |
3065 | end = DOMAIN_MAX_ADDR(addr_width); | 3073 | end = DOMAIN_MAX_ADDR(addr_width); |
3066 | end = end & VTD_PAGE_MASK; | 3074 | end = end & VTD_PAGE_MASK; |
@@ -3070,28 +3078,27 @@ int intel_iommu_map_address(struct dmar_domain *domain, dma_addr_t iova, | |||
3070 | __func__, min_agaw, max_addr); | 3078 | __func__, min_agaw, max_addr); |
3071 | return -EFAULT; | 3079 | return -EFAULT; |
3072 | } | 3080 | } |
3073 | domain->max_addr = max_addr; | 3081 | dmar_domain->max_addr = max_addr; |
3074 | } | 3082 | } |
3075 | 3083 | ||
3076 | ret = domain_page_mapping(domain, iova, hpa, size, prot); | 3084 | ret = domain_page_mapping(dmar_domain, iova, hpa, size, prot); |
3077 | return ret; | 3085 | return ret; |
3078 | } | 3086 | } |
3079 | EXPORT_SYMBOL_GPL(intel_iommu_map_address); | ||
3080 | 3087 | ||
3081 | void intel_iommu_unmap_address(struct dmar_domain *domain, | 3088 | static void intel_iommu_unmap_range(struct iommu_domain *domain, |
3082 | dma_addr_t iova, size_t size) | 3089 | unsigned long iova, size_t size) |
3083 | { | 3090 | { |
3091 | struct dmar_domain *dmar_domain = domain->priv; | ||
3084 | dma_addr_t base; | 3092 | dma_addr_t base; |
3085 | 3093 | ||
3086 | /* The address might not be aligned */ | 3094 | /* The address might not be aligned */ |
3087 | base = iova & VTD_PAGE_MASK; | 3095 | base = iova & VTD_PAGE_MASK; |
3088 | size = VTD_PAGE_ALIGN(size); | 3096 | size = VTD_PAGE_ALIGN(size); |
3089 | dma_pte_clear_range(domain, base, base + size); | 3097 | dma_pte_clear_range(dmar_domain, base, base + size); |
3090 | 3098 | ||
3091 | if (domain->max_addr == base + size) | 3099 | if (dmar_domain->max_addr == base + size) |
3092 | domain->max_addr = base; | 3100 | dmar_domain->max_addr = base; |
3093 | } | 3101 | } |
3094 | EXPORT_SYMBOL_GPL(intel_iommu_unmap_address); | ||
3095 | 3102 | ||
3096 | int intel_iommu_found(void) | 3103 | int intel_iommu_found(void) |
3097 | { | 3104 | { |