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@@ -150,6 +150,24 @@ struct dma_pte {
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(p).val |= ((addr) & VTD_PAGE_MASK); } while (0)
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#define dma_pte_present(p) (((p).val & 3) != 0)
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+struct dmar_domain {
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+ int id; /* domain id */
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+ struct intel_iommu *iommu; /* back pointer to owning iommu */
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+
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+ struct list_head devices; /* all devices' list */
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+ struct iova_domain iovad; /* iova's that belong to this domain */
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+
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+ struct dma_pte *pgd; /* virtual address */
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+ spinlock_t mapping_lock; /* page table lock */
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+ int gaw; /* max guest address width */
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+
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+ /* adjusted guest address width, 0 is level 2 30-bit */
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+ int agaw;
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+
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+#define DOMAIN_FLAG_MULTIPLE_DEVICES 1
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+ int flags;
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+};
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+
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static void flush_unmaps_timeout(unsigned long data);
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DEFINE_TIMER(unmap_timer, flush_unmaps_timeout, 0, 0);
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