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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF |
| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| 27 | */ |
27 | */ |
| 28 | 28 | ||
| - | 29 | #include <arch/mm/page.h> |
|
| - | 30 | #include <arch/mm/frame.h> |
|
| 29 | #include <mm/page.h> |
31 | #include <mm/page.h> |
| 30 | #include <mm/frame.h> |
32 | #include <mm/frame.h> |
| 31 | #include <arch/mm/page.h> |
- | |
| 32 | #include <arch/interrupt.h> |
33 | #include <arch/interrupt.h> |
| 33 | #include <arch/asm.h> |
34 | #include <arch/asm.h> |
| 34 | #include <config.h> |
35 | #include <config.h> |
| 35 | - | ||
| 36 | #include <memstr.h> |
36 | #include <memstr.h> |
| 37 | 37 | ||
| 38 | - | ||
| 39 | __address bootstrap_dba; |
38 | __address bootstrap_dba; |
| 40 | 39 | ||
| 41 | void page_arch_init(void) |
40 | void page_arch_init(void) |
| 42 | { |
41 | { |
| 43 | __address dba; |
42 | __address dba; |
| 44 | count_t i; |
43 | __address cur; |
| 45 | 44 | ||
| 46 | if (config.cpu_active == 1) { |
45 | if (config.cpu_active == 1) { |
| 47 | dba = frame_alloc(FRAME_KA | FRAME_PANIC, 0); |
46 | dba = frame_alloc(FRAME_KA | FRAME_PANIC, 0); |
| 48 | memsetb(dba, PAGE_SIZE, 0); |
47 | memsetb(dba, PAGE_SIZE, 0); |
| 49 | 48 | ||
| 50 | bootstrap_dba = dba; |
49 | bootstrap_dba = dba; |
| 51 | 50 | ||
| 52 | /* |
51 | /* |
| 53 | * PA2KA(identity) mapping for all frames. |
52 | * PA2KA(identity) mapping for all frames. |
| 54 | */ |
53 | */ |
| 55 | for (i = 0; i < config.memory_size/FRAME_SIZE; i++) { |
54 | for (cur = 0; cur < last_frame; cur += FRAME_SIZE) { |
| 56 | page_mapping_insert(PA2KA(i * PAGE_SIZE), i * PAGE_SIZE, PAGE_CACHEABLE | PAGE_EXEC, KA2PA(dba)); |
55 | page_mapping_insert(PA2KA(cur), cur, PAGE_CACHEABLE | PAGE_EXEC, KA2PA(dba)); |
| 57 | } |
56 | } |
| 58 | 57 | ||
| 59 | trap_register(14, page_fault); |
58 | trap_register(14, page_fault); |
| 60 | write_cr3(KA2PA(dba)); |
59 | write_cr3(KA2PA(dba)); |
| 61 | } |
60 | } |