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Basic VM and other minor improvements.

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Not complete, probably not fully debugged or optimized.
This commit is contained in:
Ben Gras
2008-11-19 12:26:10 +00:00
parent c888305e21
commit c078ec0331
273 changed files with 10814 additions and 4305 deletions
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25
kernel/system/do_newmap.c
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@@ -16,10 +16,10 @@
PUBLIC int do_newmap(m_ptr)
message *m_ptr; /* pointer to request message */
{
/* Handle sys_newmap(). Fetch the memory map from PM. */
/* Handle sys_newmap(). Fetch the memory map. */
register struct proc *rp; /* process whose map is to be loaded */
struct mem_map *map_ptr; /* virtual address of map inside caller (PM) */
phys_bytes src_phys; /* physical address of map at the PM */
struct mem_map *map_ptr; /* virtual address of map inside caller */
phys_bytes src_phys; /* physical address of map at the */
int proc;
map_ptr = (struct mem_map *) m_ptr->PR_MEM_PTR;
@@ -36,18 +36,15 @@ message *m_ptr; /* pointer to request message */
*===========================================================================*/
PUBLIC int newmap(rp, map_ptr)
struct proc *rp; /* process whose map is to be loaded */
struct mem_map *map_ptr; /* virtual address of map inside caller (PM) */
struct mem_map *map_ptr; /* virtual address of map inside caller */
{
/* Fetch the memory map from PM. */
phys_bytes src_phys; /* physical address of map at the PM */
int proc;
/* Copy the map from PM. */
src_phys = umap_local(proc_addr(who_p), D, (vir_bytes) map_ptr,
sizeof(rp->p_memmap));
if (src_phys == 0) return(EFAULT);
phys_copy(src_phys,vir2phys(rp->p_memmap),
(phys_bytes)sizeof(rp->p_memmap));
int r;
/* Fetch the memory map. */
if((r=data_copy(who_e, (vir_bytes) map_ptr,
SYSTEM, (vir_bytes) rp->p_memmap, sizeof(rp->p_memmap))) != OK) {
kprintf("newmap: data_copy failed! (%d)\n", r);
return r;
}
alloc_segments(rp);