Subversion Repositories HelenOS-historic

Rev

Rev 977 | Rev 1423 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 977 Rev 1411
Line 88... Line 88...
88 
#include <mm/page.h>
 88 
#include <mm/page.h>
89 
#include <arch/types.h>
 89 
#include <arch/types.h>
90 
#include <arch/mm/frame.h>
 90 
#include <arch/mm/frame.h>
91 
#include <typedefs.h>
 91 
#include <typedefs.h>
92 
 
 92 
 
- 
 
 93 
/* Page fault error codes. */
- 
 
 94 
 
- 
 
 95 
/** When bit on this position is 0, the page fault was caused by a not-present page. */
- 
 
 96 
#define PFERR_CODE_P        (1<<0)
- 
 
 97 
 
- 
 
 98 
/** When bit on this position is 1, the page fault was caused by a write. */
- 
 
 99 
#define PFERR_CODE_RW       (1<<1)
- 
 
 100 
 
- 
 
 101 
/** When bit on this position is 1, the page fault was caused in user mode. */
- 
 
 102 
#define PFERR_CODE_US       (1<<2)
- 
 
 103 
 
- 
 
 104 
/** When bit on this position is 1, a reserved bit was set in page directory. */
- 
 
 105 
#define PFERR_CODE_RSVD     (1<<3) 
- 
 
 106 
 
93 
/** Page Table Entry. */
 107 
/** Page Table Entry. */
94 
struct page_specifier {
 108 
struct page_specifier {
95 
    unsigned present : 1;
 109 
    unsigned present : 1;
96 
    unsigned writeable : 1;
 110 
    unsigned writeable : 1;
97 
    unsigned uaccessible : 1;
 111 
    unsigned uaccessible : 1;
Line 136... Line 150...
136 
     */
 150 
     */
137 
    p->soft_valid = true;
 151 
    p->soft_valid = true;
138 
}
 152 
}
139 
 
 153 
 
140 
extern void page_arch_init(void);
 154 
extern void page_arch_init(void);
- 
 
 155 
extern void page_fault(int n, istate_t *istate);
141 
 
 156 
 
142 
#endif /* __ASM__ */
 157 
#endif /* __ASM__ */
143 
 
 158 
 
144 
#endif /* KERNEL */
 159 
#endif /* KERNEL */
145 
 
 160