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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.
24 lines
627 B
C
24 lines
627 B
C
#ifndef _LINUX_PFN_H_
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#define _LINUX_PFN_H_
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#ifndef __ASSEMBLY__
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#include <linux/types.h>
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/*
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* pfn_t: encapsulates a page-frame number that is optionally backed
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* by memmap (struct page). Whether a pfn_t has a 'struct page'
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* backing is indicated by flags in the high bits of the value.
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*/
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typedef struct {
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u64 val;
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} pfn_t;
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#endif
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#define PFN_ALIGN(x) (((unsigned long)(x) + (PAGE_SIZE - 1)) & PAGE_MASK)
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#define PFN_UP(x) (((x) + PAGE_SIZE-1) >> PAGE_SHIFT)
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#define PFN_DOWN(x) ((x) >> PAGE_SHIFT)
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#define PFN_PHYS(x) ((phys_addr_t)(x) << PAGE_SHIFT)
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#define PHYS_PFN(x) ((unsigned long)((x) >> PAGE_SHIFT))
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#endif
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