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Prefaulting of utcb pages seem to work.

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Next: fs0 should shmat() on others' utcbs.
This commit is contained in:
Bahadir Balban
2008-03-22 15:57:20 +00:00
parent 0dfbde6bc0
commit 82a7228d89
9 changed files with 211 additions and 78 deletions
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10
tasks/mm0/include/vm_area.h
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@@ -81,6 +81,7 @@ struct fault_data {
fault_kdata_t *kdata; /* Generic data flonged by the kernel */
unsigned int reason; /* Generic fault reason flags */
unsigned int address; /* Aborted address */
unsigned int pte_flags; /* Generic protection flags on pte */
struct vm_area *vma; /* Inittask-related fault data */
struct tcb *task; /* Inittask-related fault data */
};
@@ -206,7 +207,14 @@ struct vm_file *vm_file_create(void);
int vm_object_delete(struct vm_object *vmo);
void vm_object_print(struct vm_object *vmo);
/* Used for pre-faulting a page from mm0 */
int prefault_page(struct tcb *task, unsigned long address,
unsigned int vmflags);
/* To get currently mapped page of a virtual address on a task */
struct page *task_virt_to_page(struct tcb *t, unsigned long virtual);
/* Main page fault entry point */
void page_fault_handler(l4id_t tid, fault_kdata_t *fkdata);
int page_fault_handler(l4id_t tid, fault_kdata_t *fkdata);
#endif /* __VM_AREA_H__ */