diff options
Diffstat (limited to 'qemu/roms/ipxe/src/interface/xen/xenstore.c')
-rw-r--r-- | qemu/roms/ipxe/src/interface/xen/xenstore.c | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/qemu/roms/ipxe/src/interface/xen/xenstore.c b/qemu/roms/ipxe/src/interface/xen/xenstore.c index b96982927..23424a926 100644 --- a/qemu/roms/ipxe/src/interface/xen/xenstore.c +++ b/qemu/roms/ipxe/src/interface/xen/xenstore.c @@ -15,9 +15,13 @@ * along with this program; if not, write to the Free Software * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA * 02110-1301, USA. + * + * You can also choose to distribute this program under the terms of + * the Unmodified Binary Distribution Licence (as given in the file + * COPYING.UBDL), provided that you have satisfied its requirements. */ -FILE_LICENCE ( GPL2_OR_LATER ); +FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL ); #include <stdint.h> #include <stdarg.h> @@ -238,6 +242,10 @@ static int xenstore_response ( struct xen_hypervisor *xen, uint32_t req_id, char *string; int rc; + /* Wait for response to become available */ + while ( ! xenevent_pending ( xen, xen->store.port ) ) + cpu_nap(); + /* Receive message header */ xenstore_recv ( xen, &msg, sizeof ( msg ) ); *len = msg.len; |