diff options
Diffstat (limited to 'lib/chromeos/memory_wipe.c')
| -rw-r--r-- | lib/chromeos/memory_wipe.c | 17 |
1 files changed, 11 insertions, 6 deletions
diff --git a/lib/chromeos/memory_wipe.c b/lib/chromeos/memory_wipe.c index f8476b35ab..7823ece031 100644 --- a/lib/chromeos/memory_wipe.c +++ b/lib/chromeos/memory_wipe.c @@ -28,7 +28,7 @@ */ static void memory_wipe_insert_between(memory_wipe_edge_t *before, - memory_wipe_edge_t *after, uintptr_t pos) + memory_wipe_edge_t *after, phys_addr_t pos) { memory_wipe_edge_t *new_edge = (memory_wipe_edge_t *)malloc(sizeof(*new_edge)); @@ -48,7 +48,7 @@ void memory_wipe_init(memory_wipe_t *wipe) } static void memory_wipe_set_region_to(memory_wipe_t *wipe_info, - uintptr_t start, uintptr_t end, int new_wiped) + phys_addr_t start, phys_addr_t end, int new_wiped) { /* whether the current region was originally going to be wiped. */ int wipe = 0; @@ -97,13 +97,13 @@ static void memory_wipe_set_region_to(memory_wipe_t *wipe_info, } /* Set a region to "wiped". */ -void memory_wipe_add(memory_wipe_t *wipe, uintptr_t start, uintptr_t end) +void memory_wipe_add(memory_wipe_t *wipe, phys_addr_t start, phys_addr_t end) { memory_wipe_set_region_to(wipe, start, end, 1); } /* Set a region to "not wiped". */ -void memory_wipe_sub(memory_wipe_t *wipe, uintptr_t start, uintptr_t end) +void memory_wipe_sub(memory_wipe_t *wipe, phys_addr_t start, phys_addr_t end) { memory_wipe_set_region_to(wipe, start, end, 0); } @@ -112,10 +112,11 @@ void memory_wipe_sub(memory_wipe_t *wipe, uintptr_t start, uintptr_t end) void memory_wipe_execute(memory_wipe_t *wipe) { memory_wipe_edge_t *cur; + const phys_addr_t max_addr = (phys_addr_t)~(uintptr_t)0; VBDEBUG(PREFIX "Wipe memory regions:\n"); for (cur = wipe->head.next; cur; cur = cur->next->next) { - uintptr_t start, end; + phys_addr_t start, end; if (!cur->next) { VBDEBUG(PREFIX "Odd number of region edges!\n"); @@ -123,8 +124,12 @@ void memory_wipe_execute(memory_wipe_t *wipe) } start = cur->pos; + if ((start & max_addr) != start) + break; end = cur->next->pos; + if ((end & max_addr) != end) + end = 0; VBDEBUG(PREFIX "\t[%#08x, 0x%08x)\n", start, end); - memset((void *)start, 0, end - start); + memset((void *)(uintptr_t)start, 0, end - start); } } |