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Error recovery fixes to mm0 and l4_map_helper

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This commit is contained in:
Bahadir Balban
2009-11-18 10:55:53 +02:00
parent 452f177ce2
commit 51a12a507f
2 changed files with 14 additions and 4 deletions
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8
conts/libl4/include/l4lib/arch-arm/syslib.h
View File

@@ -322,10 +322,16 @@ void *l4_del_virtual(void *virt, int npages);
static inline void *l4_map_helper(void *phys, int npages)
{
struct task_ids ids;
int err;
void *virt = l4_new_virtual(npages);
l4_getid(&ids);
l4_map(phys, virt, npages, MAP_USR_RW_FLAGS, ids.tid);
if ((err = l4_map(phys, virt, npages,
MAP_USR_RW_FLAGS, ids.tid)) < 0)
return PTR_ERR(err);
return virt;
}

10
conts/posix/mm0/mm/init.c
View File

@@ -271,9 +271,13 @@ void init_physmem_secondary(struct membank *membank)
* Use free pages from the bank as
* the space for struct page array
*/
membank[0].page_array =
l4_map_helper((void *)membank[0].free,
pg_npages);
if (IS_ERR(membank[0].page_array =
l4_map_helper((void *)membank[0].free,
pg_npages))) {
printf("FATAL: Page array mapping failed. err=%d\n",
(int)membank[0].page_array);
BUG();
}
/* Update free memory left */
membank[0].free += pg_npages * PAGE_SIZE;