| /openbmc/linux/include/linux/ |
| H A D | virtio_config.h | diff 6e5aa7efb27aec7e55b6463fa2c8db594c4226fa Mon Feb 04 22:50:03 CST 2008 Rusty Russell <rusty@rustcorp.com.au> 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>
|
| H A D | virtio.h | diff 6e5aa7efb27aec7e55b6463fa2c8db594c4226fa Mon Feb 04 22:50:03 CST 2008 Rusty Russell <rusty@rustcorp.com.au> 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>
|
| /openbmc/linux/drivers/virtio/ |
| H A D | virtio.c | diff 6e5aa7efb27aec7e55b6463fa2c8db594c4226fa Mon Feb 04 22:50:03 CST 2008 Rusty Russell <rusty@rustcorp.com.au> 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>
|
| H A D | virtio_ring.c | diff 6e5aa7efb27aec7e55b6463fa2c8db594c4226fa Mon Feb 04 22:50:03 CST 2008 Rusty Russell <rusty@rustcorp.com.au> 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>
|
| /openbmc/linux/drivers/block/ |
| H A D | virtio_blk.c | diff 6e5aa7efb27aec7e55b6463fa2c8db594c4226fa Mon Feb 04 22:50:03 CST 2008 Rusty Russell <rusty@rustcorp.com.au> 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>
|
| /openbmc/linux/drivers/net/ |
| H A D | virtio_net.c | diff 6e5aa7efb27aec7e55b6463fa2c8db594c4226fa Mon Feb 04 22:50:03 CST 2008 Rusty Russell <rusty@rustcorp.com.au> 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>
|