mm.h

来自「一个类似windows」· C头文件 代码 · 共 59 行

/*
 * Lowlevel memory managment definitions
 */

#ifndef __NTOSKRNL_INCLUDE_INTERNAL_I386_MM_H
#define __NTOSKRNL_INCLUDE_INTERNAL_I386_MM_H

#if 0
/*
 * Page access attributes (or these together)
 */
#define PA_READ            (1<<0)
#define PA_WRITE           ((1<<0)+(1<<1))
#define PA_EXECUTE         PA_READ
#define PA_PCD             (1<<4)
#define PA_PWT             (1<<3)

/*
 * Page attributes
 */
#define PA_USER            (1<<2)
#define PA_SYSTEM          (0)
#endif

#if defined(__GNUC__)

#define FLUSH_TLB   {				\
			unsigned int tmp;	\
			__asm__ __volatile__(	\
			    "movl %%cr3,%0\n\t"	\
			    "movl %0,%%cr3\n\t"	\
			    : "=r" (tmp)	\
			    :: "memory");	\
		    }

#define FLUSH_TLB_ONE(addr) __asm__ __volatile__(		\
			    "invlpg %0"				\
			    :					\
			    : "m" (*(volatile long *) (addr)))



#elif defined(_MSC_VER)
/* TODO: Need some way to tell the compiler this is a memory barrier. */
#define FLUSH_TLB __asm mov eax, cr3  __asm mov cr3, eax;
#else
#error Unknown compiler for inline assembler
#endif

struct _EPROCESS;
PULONG MmGetPageDirectory(VOID);



#define PAGE_MASK(x)		((x)&(~0xfff))
#define PAE_PAGE_MASK(x)	((x)&(~0xfffLL))

#endif /* __NTOSKRNL_INCLUDE_INTERNAL_I386_MM_H */