Subject: xenpaging: allow negative num_pages and limit num_pages Simplify paging size argument. If a negative number is specified, it means the entire guest memory should be paged out. This is useful for debugging. Also limit num_pages to the guests max_pages. (xen-unstable changeset: 22442:1793318b35e6) Signed-off-by: Olaf Hering --- tools/xenpaging/xenpaging.c | 9 +++++++-- 1 file changed, 7 insertions(+), 2 deletions(-) Index: xen-4.0.2-testing/tools/xenpaging/xenpaging.c =================================================================== --- xen-4.0.2-testing.orig/tools/xenpaging/xenpaging.c +++ xen-4.0.2-testing/tools/xenpaging/xenpaging.c @@ -515,8 +515,6 @@ int main(int argc, char *argv[]) domain_id = atoi(argv[1]); num_pages = atoi(argv[2]); - victims = calloc(num_pages, sizeof(xenpaging_victim_t)); - /* Seed random-number generator */ srand(time(NULL)); @@ -537,6 +535,13 @@ int main(int argc, char *argv[]) return 2; } + if ( num_pages < 0 || num_pages > paging->domain_info->max_pages ) + { + num_pages = paging->domain_info->max_pages; + DPRINTF("setting num_pages to %d\n", num_pages); + } + victims = calloc(num_pages, sizeof(xenpaging_victim_t)); + /* ensure that if we get a signal, we'll do cleanup, then exit */ act.sa_handler = close_handler; act.sa_flags = 0;