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| author | Keir Fraser <keir.fraser@citrix.com> | 2008-05-12 10:10:45 +0100 |
|---|---|---|
| committer | Keir Fraser <keir.fraser@citrix.com> | 2008-05-12 10:10:45 +0100 |
| commit | a58e7325d68a0b6fc156ef849ab8174d1978ca2d (patch) | |
| tree | bf3a38dc7a22ea4a91489303e6a3cacd9b30cf24 /extras/mini-os/kernel.c | |
| parent | de239d043fbfddbcb509e64186f963697127983e (diff) | |
| download | xen-a58e7325d68a0b6fc156ef849ab8174d1978ca2d.tar.gz xen-a58e7325d68a0b6fc156ef849ab8174d1978ca2d.tar.bz2 xen-a58e7325d68a0b6fc156ef849ab8174d1978ca2d.zip | |
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>
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) { |