| 24,61 → 24,61 |
|---|
| #include <ll/sys/ll/ll-data.h> |
| #include <ll/sys/ll/aspace.h> |
| |
| FILE(Address - Space); |
| FILE(Address-Space); |
| |
| struct as AS_table[ASMax]; |
| |
| void as_init(void) |
| { |
| int i; |
| int i; |
| |
| for (i = 0; i < ASMax; i++) { |
| AS_table[i].status = AS_FREE; |
| } |
| for (i = 0; i < ASMax; i++) { |
| AS_table[i].status = AS_FREE; |
| } |
| } |
| |
| AS as_create(void) |
| { |
| int i; |
| int i; |
| |
| i = 0; |
| while ((i < ASMax) && (AS_table[i].status & AS_BUSY)) { |
| i++; |
| } |
| i = 0; |
| while((i < ASMax) && (AS_table[i].status & AS_BUSY)) { |
| i++; |
| } |
| |
| if (i == ASMax) { |
| return 0; |
| } |
| |
| AS_table[i].status = AS_BUSY; /* Empty address space... */ |
| AS_table[i].base = 0; |
| AS_table[i].limit= 0; |
| |
| if (i == ASMax) { |
| return 0; |
| } |
| |
| AS_table[i].status = AS_BUSY; /* Empty address space... */ |
| AS_table[i].base = 0; |
| AS_table[i].limit = 0; |
| |
| GDT_place(ASindex2sel(i), AS_table[i].base, AS_table[i].limit, |
| DATA_ACCESS, GRAN_32B); |
| GDT_place(ASindex2sel(i) + 8, AS_table[i].base, AS_table[i].limit, |
| CODE_ACCESS, GRAN_32B); |
| GDT_place(ASindex2sel(i), AS_table[i].base, AS_table[i].limit, |
| DATA_ACCESS, GRAN_32B); |
| GDT_place(ASindex2sel(i) + 8, AS_table[i].base, AS_table[i].limit, |
| CODE_ACCESS, GRAN_32B); |
| /* We also need a code segment... */ |
| |
| return ASindex2sel(i); |
| return ASindex2sel(i); |
| } |
| |
| int as_bind(AS as, DWORD ph_addr, DWORD l_addr, DWORD size) |
| { |
| int i = ASsel2index(as); |
| int i = ASsel2index(as); |
| |
| /* We have not paging... So l_addr must be 0 */ |
| if (l_addr != 0) |
| return -1; |
| /* We have not paging... So l_addr must be 0 */ |
| if (l_addr != 0) |
| return -1; |
| |
| AS_table[i].base = ph_addr; |
| AS_table[i].limit = size; |
| AS_table[i].base = ph_addr; |
| AS_table[i].limit= size; |
| |
| GDT_place(as, AS_table[i].base, AS_table[i].limit, |
| DATA_ACCESS, GRAN_32B); |
| GDT_place(as + 8, AS_table[i].base, AS_table[i].limit, |
| CODE_ACCESS, GRAN_32B); |
| GDT_place(as, AS_table[i].base, AS_table[i].limit, |
| DATA_ACCESS, GRAN_32B); |
| GDT_place(as + 8, AS_table[i].base, AS_table[i].limit, |
| CODE_ACCESS, GRAN_32B); |
| /* We also need a code segment... */ |
| |
| return 1; |
| return 1; |
| } |