[Xen-changelog] [xen master] prevent 0 from being used as a dynamic domid

[patchbot@xxxxxxx]

commit 920641d9c4a9216952c2200cd4a10938ec90e0f0
Author:     Daniel De Graaf <dgdegra@xxxxxxxxxxxxx>
AuthorDate: Fri Apr 11 11:20:08 2014 +0200
Commit:     Jan Beulich <jbeulich@xxxxxxxx>
CommitDate: Fri Apr 11 11:20:08 2014 +0200

    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>
    Acked-by: Keir Fraser <keir@xxxxxxx>
---
 xen/common/domctl.c |    2 +-
 1 files changed, 1 insertions(+), 1 deletions(-)

diff --git a/xen/common/domctl.c b/xen/common/domctl.c
index 5e807ab..af3614b 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;
             }
--
generated by git-patchbot for /home/xen/git/xen.git#master

_______________________________________________
Xen-changelog mailing list
Xen-changelog@xxxxxxxxxxxxx
http://lists.xensource.com/xen-changelog