From 9dc41b399faf3593e131c1b73961200628112f59 Mon Sep 17 00:00:00 2001 From: Keir Fraser Date: Mon, 12 May 2008 10:10:45 +0100 Subject: [PATCH] minios: clear FB content since _xmalloc may return non-zeroed memory (in debug mode, notably). Signed-off-by: Samuel Thibault --- kernel.c | 7 ++----- 1 file changed, 2 insertions(+), 5 deletions(-) diff --git a/kernel.c b/kernel.c index 662acb0..ea92adc 100644 --- a/kernel.c +++ b/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) { -- 2.39.5