linux-sg2042/Documentation/lguest
Rusty Russell 6e5aa7efb2 virtio: reset function
A reset function solves three problems:

1) It allows us to renegotiate features, eg. if we want to upgrade a
   guest driver without rebooting the guest.

2) It gives us a clean way of shutting down virtqueues: after a reset,
   we know that the buffers won't be used by the host, and

3) It helps the guest recover from messed-up drivers.

So we remove the ->shutdown hook, and the only way we now remove
feature bits is via reset.

We leave it to the driver to do the reset before it deletes queues:
the balloon driver, for example, needs to chat to the host in its
remove function.

Signed-off-by: Rusty Russell <rusty@rustcorp.com.au>
2008-02-04 23:50:03 +11:00
..
Makefile Introduce guest mem offset, static link example launcher 2007-10-23 15:49:50 +10:00
extract lguest: documentation I: Preparation 2007-07-26 11:35:16 -07:00
lguest.c virtio: reset function 2008-02-04 23:50:03 +11:00
lguest.txt Fix lguest documentation 2007-12-17 19:28:16 -08:00