Michael S. Tsirkin 48fe10afb3 virtio: order used ring after used index read ...

commit 2d61ba95034f1abbdec7729d52c740870a5eddb6 upstream.

On SMP guests, reads from the ring might bypass used index reads. This
causes guest crashes because host writes to used index to signal ring
data readiness.  Fix this by inserting rmb before used ring reads.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
Signed-off-by: Greg Kroah-Hartman <gregkh@suse.de>

2009-11-09 16:22:28 -08:00

..

config.c

Virtio interface

2007-10-23 15:49:54 +10:00

Kconfig

virtio: balloon driver

2008-02-04 23:50:13 +11:00

Makefile

virtio: balloon driver

2008-02-04 23:50:13 +11:00

virtio_balloon.c

virtio: find_vqs/del_vqs virtio operations

2009-06-12 22:16:36 +09:30

virtio_pci.c

virtio: refactor find_vqs

2009-07-30 16:03:45 +09:30

virtio_ring.c

virtio: order used ring after used index read

2009-11-09 16:22:28 -08:00

virtio.c

virtio: enhance id_matching for virtio drivers

2009-06-12 22:16:40 +09:30