diff options
Diffstat (limited to 'extras/mini-os/kernel.c')
| -rw-r--r-- | extras/mini-os/kernel.c | 7 |
1 files changed, 2 insertions, 5 deletions
diff --git a/extras/mini-os/kernel.c b/extras/mini-os/kernel.c index 662acb0b00..ea92adca6a 100644 --- a/extras/mini-os/kernel.c +++ b/extras/mini-os/kernel.c @@ -303,13 +303,10 @@ static void fbfront_thread(void *p) memsize = n * PAGE_SIZE; fb = _xmalloc(memsize, PAGE_SIZE); + memset(fb, 0, memsize); mfns = xmalloc_array(unsigned long, n); - for (i = 0; i < n; i++) { - /* trigger CoW */ - ((char *) fb) [i * PAGE_SIZE] = 0; - barrier(); + for (i = 0; i < n; i++) mfns[i] = virtual_to_mfn((char *) fb + i * PAGE_SIZE); - } fb_dev = init_fbfront(NULL, mfns, WIDTH, HEIGHT, DEPTH, line_length, n); xfree(mfns); if (!fb_dev) { |