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2a709f28fa
* 0day explit mitigation * Memory corruption prevention * Privilege escalation prevention * Buffer over flow prevention * File System corruption defense * Thread escape prevention This may very well be the most intensive inclusion to BrooklynR. This will not be part of an x86 suite nor it will be released as tool kit. The security core toolkit will remain part of kernel base.
35 lines
911 B
C
35 lines
911 B
C
#ifndef _LINUX_IOMMU_HELPER_H
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#define _LINUX_IOMMU_HELPER_H
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#include <linux/kernel.h>
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static inline unsigned long iommu_device_max_index(unsigned long size,
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unsigned long offset,
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u64 dma_mask)
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{
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if (size + offset > dma_mask)
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return dma_mask - offset + 1;
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else
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return size;
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}
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extern int iommu_is_span_boundary(unsigned int index, unsigned int nr,
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unsigned long shift,
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unsigned long boundary_size);
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extern unsigned long iommu_area_alloc(unsigned long *map, unsigned long size,
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unsigned long start, unsigned int nr,
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unsigned long shift,
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unsigned long boundary_size,
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unsigned long align_mask);
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static inline unsigned long iommu_num_pages(unsigned long addr,
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unsigned long len,
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unsigned long io_page_size)
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{
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unsigned long size = (addr & (io_page_size - 1)) + len;
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return DIV_ROUND_UP(size, io_page_size);
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}
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#endif
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