minios: clear FB content since _xmalloc may return non-zeroed memory (in
debug mode, notably).
Signed-off-by: Samuel Thibault <samuel.thibault@eu.citrix.com>
diff -r 2223ed7635d4 extras/mini-os/kernel.c
--- a/extras/mini-os/kernel.c Thu May 08 13:59:03 2008 +0100
+++ b/extras/mini-os/kernel.c Thu May 08 15:34:59 2008 +0100
@@ -302,13 +302,10 @@
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) {
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