[Xen-changelog] [xen-unstable] ioemu: Fix interpretation of missing or zero vfb videoram

[Xen patchbot-unstable <patchbot-unstable@xxxxxxxxxxxxxxxxxxx>]

# HG changeset patch
# User Keir Fraser <keir.fraser@xxxxxxxxxx>
# Date 1211272912 -3600
# Node ID 13dda75739f2ac18a4b33bc32432f0add9450557
# Parent  2ada81810ddb73f29dfd1eb00de466eec2881ce6
ioemu: Fix interpretation of missing or zero vfb videoram

Changeset 17289:d97e61001d81: introduced vfb configuration parameter
videoram, defaulting to zero.  Value zero was interpreted as
unlimited.  Changeset 17630:53195719f762 accidentally dropped the
special case for zero, which broke guests that don't specify videoram,
or specify videoram=0.  Restore the old behavior.

Signed-off-by: Markus Armbruster <armbru@xxxxxxxxxx>
---
 tools/ioemu/hw/xenfb.c |    2 +-
 1 files changed, 1 insertion(+), 1 deletion(-)

diff -r 2ada81810ddb -r 13dda75739f2 tools/ioemu/hw/xenfb.c
--- a/tools/ioemu/hw/xenfb.c    Mon May 19 10:03:26 2008 +0100
+++ b/tools/ioemu/hw/xenfb.c    Tue May 20 09:41:52 2008 +0100
@@ -498,7 +498,7 @@ static int xenfb_configure_fb(struct xen
                        fb_len_lim, fb_len_max);
                fb_len_lim = fb_len_max;
        }
-       if (fb_len > fb_len_lim) {
+       if (fb_len_lim && fb_len > fb_len_lim) {
                fprintf(stderr,
                        "FB: frontend fb size %zu limited to %zu\n",
                        fb_len, fb_len_lim);

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