diff options
Diffstat (limited to 'kernel/vm/anon.c')
| -rw-r--r-- | kernel/vm/anon.c | 33 |
1 files changed, 28 insertions, 5 deletions
diff --git a/kernel/vm/anon.c b/kernel/vm/anon.c index 4a92fc9..a433395 100644 --- a/kernel/vm/anon.c +++ b/kernel/vm/anon.c @@ -27,7 +27,8 @@ static mobj_ops_t anon_mobj_ops = {.get_pframe = NULL, */ void anon_init() { - NOT_YET_IMPLEMENTED("VM: anon_init"); + // NOT_YET_IMPLEMENTED("VM: anon_init"); + anon_allocator = slab_allocator_create("anon", sizeof(mobj_t)); } /* @@ -36,8 +37,17 @@ void anon_init() */ mobj_t *anon_create() { - NOT_YET_IMPLEMENTED("VM: anon_create"); - return NULL; + // NOT_YET_IMPLEMENTED("VM: anon_create"); + // make a new mobj + mobj_t *mobj = (mobj_t *)slab_obj_alloc(anon_allocator); + // initialize the mobj + if (mobj) + { + mobj_init(mobj, MOBJ_ANON, &anon_mobj_ops); + mobj_lock(mobj); + return mobj; + } + panic("MINE anon_create: slab_obj_alloc failed"); } /* @@ -46,7 +56,15 @@ mobj_t *anon_create() */ static long anon_fill_pframe(mobj_t *o, pframe_t *pf) { - NOT_YET_IMPLEMENTED("VM: anon_fill_pframe"); + // NOT_YET_IMPLEMENTED("VM: anon_fill_pframe"); + + // set the pframe's mobj to the given mobj + // pf->pf_addr = o; + // // set the pframe's flags to dirty + // pf->pf_dirty = 1; + + memset(pf->pf_addr, 0, PAGE_SIZE); + return 0; } @@ -61,5 +79,10 @@ static long anon_flush_pframe(mobj_t *o, pframe_t *pf) { return 0; } */ static void anon_destructor(mobj_t *o) { - NOT_YET_IMPLEMENTED("VM: anon_destructor"); + // NOT_YET_IMPLEMENTED("VM: anon_destructor"); + // call the default destructor + mobj_default_destructor(o); + + // free the mobj + slab_obj_free(anon_allocator, o); } |