[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] [Xen-devel] [PATCH 3/6] xen: prevent 0 from being used as a dynamic domid
When the hardware domain is made distinct from dom0, it becomes possible to shut down and destroy domain 0 while leaving the hypervisor running. If this happens, prevent this domain ID from being considered for allocation to a new guest. Signed-off-by: Daniel De Graaf <dgdegra@xxxxxxxxxxxxx> Cc: Keir Fraser <keir@xxxxxxx> --- xen/common/domctl.c | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-) diff --git a/xen/common/domctl.c b/xen/common/domctl.c index 7cf610a..eebeee7 100644 --- a/xen/common/domctl.c +++ b/xen/common/domctl.c @@ -436,7 +436,7 @@ long do_domctl(XEN_GUEST_HANDLE_PARAM(xen_domctl_t) u_domctl) for ( dom = rover + 1; dom != rover; dom++ ) { if ( dom == DOMID_FIRST_RESERVED ) - dom = 0; + dom = 1; if ( is_free_domid(dom) ) break; } -- 1.8.5.3 _______________________________________________ Xen-devel mailing list Xen-devel@xxxxxxxxxxxxx http://lists.xen.org/xen-devel
|
Lists.xenproject.org is hosted with RackSpace, monitoring our |